F-1321

OCEANIC JOY
D/W 9,600 MT TYPE CEMENT CARRIER

OPERATION
MANUAL
SHIPBOARD INCINERATOR

BGW-N

Operation Manual No. E991-1303-08

Important Safety Information

In handling shipboard incinerator BGW-N type (hereinafter called this incinerator), read and fully
understand this manual and follow instruction that is contained in this manual.

This incinerator contains hot parts that may cause burn, high-pressure parts that may cause injury due
to pressure break, moving parts that a part of body may get caught, and high-voltage parts that may
cause electrical shock. Improper handling of these parts may cause accident involving death, fire, or
other disasters.

To ensure safety of operation and maintenance of this incinerator, it is essential to know possible
causes of disasters in advance. We cannot predict all potential dangers, but present dangers involved
in handling of incinerator in this manual to the best of our knowledge. Following warnings or
instructions that are contained in this manual better ensures safety of work.
In this manual, harm and damage are categorized into following three levels. These are attached on
this incinerator as warning labels (*) and also described in this manual.

Indicates any condition or practice that, if not observed, it causes

DANGER imminent danger of death or serious injury to user.

Indicates any condition or practice that, if not observed, it may cause

WARNING death or serious injury to user.

Indicates any condition or practice that, if not observed, it may cause

CAUTION minor injury to user or property damage.

If failed components are found, contact with MIURA offices and replace them with genuine parts. Using
different model part may reduce safety of boiler.
Remodeling this incinerator without consultation with MIURA or repairing it in way that is not specified
in this manual may seriously affect safety of incinerator. Do not remodel or repair incinerator on your
own.

i
Introduction

This manual describes procedures for handling this incinerator for proper operation. Precautions
relating to operating method and safety indicated in this manual from damages to measures only relate
to usage for specified purposes. Do not use incinerator by methods that are not mentioned in this
manual. Be aware that MIURA cannot be held responsible if incinerator is used by methods that are not
mentioned in this manual.

Before using this incinerator, those who use it for the first time as well as those familiar with handling of
it must read this manual thoroughly and understand proper method of handling it.
Keep this manual in place so that it can be consulted whenever there is any uncertainty about this
incinerator.

In addition to this manual, following booklets are provided as information that is needed to use this
incinerator. Before using incinerator, thoroughly read these booklets in addition to this manual.
Final Drawing:
Final drawing is documents containing all specifications for customer. Look over and understand
final drawing before use. Refer to this document for information that depends on capacity or
options.

ii
[Graphical symbols]
Graphical symbols used in this manual have following meanings:
Indicates certain behavior is prohibited.

Prohibition
Indicates touching certain area may cause personal injury.

Do Not Touch
Indicates handling with wet hands may cause electrical shock.

Do Not Touch
with Wet Hands

Provides instruction to be followed (action to be taken).

Instruction
Indicates ground wires must be connected.

Connect
Ground Wire

Indicates precaution to be remembered.

Caution
Indicates potential danger of injury from heat under certain
conditions.
Caution: Hot
Provides precaution to prevent boiler failure, point to be
Note remembered for effective operation, or other useful information.

Indicates related page(s).

iii
Term Definitions

Terms that are used in this manual are defined as follows.

These terms are marked with asterisk (*) in manual.
Term Description
Abbreviation of marine diesel oil. When this incinerator is used in Japan,
M.D.O.
term refers to heavy oil A.
Condition that air is mixed into piping inside and shows abnormal
Air mixing
operation.
An apparatus which absorbs the incineration gas from the furnace to
Ejector
maintain the negative pressure inside the furnace.

Warning label Label to call attention to operating precaution.

Sludge Deposition that oil and rust are decayed and accumulated in tank. (Mud)

High voltage supply system designed to generate sparks for auxiliary

Ignition transformer
burner

Solenoid pump Pump for increasing pressure of diesel oil (for auxiliary burner.)

Residual flame Flame that remains in furnace after incinerator has ended.

Furnace for Burner Incineration chamber for the burner.

Phenomenon that fire source is generated in furnace under poorly

ventilated conditions before incineration is started or when incineration is
Backfire
stopped, and combustible gas mixture in furnace is ignited to cause
explosion.

Flame eye Sensor that is designed to detect flame in furnace.

Pre-purge is ventilating incineration chamber of boiler before boiler

Pre purge
incineration.

Atomized air Pressurized air for atomizing waste oil.

Flat furnace Solid waste furnace that has flat refractory.

Cooling operation Operation that fan is run to cool inside of furnace after incineration.

Grate Solid waste furnace that has spacing in burner side.

iv
 CONTENTS

Important Safety Information ............................................................................ i

Introduction ..................................................................................................... ii

Term Definitions ............................................................................................. iv

CHAPTER 1: SAFETY......................................................................... 1

1. Safety Regulations ...................................................................................... 1

2. Knowledge and Skill Required for Safe Handling ........................................ 2

3. Protective Equipment .................................................................................. 2

4. Prohibition of Remodeling without Permission ............................................ 2

5. Use of Specified Fuels ................................................................................ 2

6. Warning Labels(*) on Products..................................................................... 3

7. Precautions for Safe Handling .................................................................... 5

7.1 Safety Precautions in Installation .............................................................................. 5
7.2 Safety Precautions in Pre-operation Inspection and Preparation (excerpt from P36~)
.......................................................................................................................................... 7
7.3 Safety Precautions in Operating Incinerator (excerpt from P41~) ............................. 8
7.4 Safety Precautions in Operating Stop (excerpt from P41~, P47~) .......................... 12
7.5 Safety Precautions in Inspections and Maintenance (excerpt from P50~) .............. 13
7.6 Safety Precautions in Working on Failures (excerpt from P81~) ............................. 15
7.7 Safety Precautions in Storage Work (excerpt from P86~) ....................................... 15

CHAPTER 2: OVERVIEW ................................................................. 16

1. Product Overview...................................................................................... 16
1.1 Functions ................................................................................................................ 16
1.2 Features .................................................................................................................. 16
1.3 Specifications .......................................................................................................... 18
1.4 Flow of Shipboard Incinerator ................................................................................. 19

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 2. Part Names and Functions ....................................................................... 20
2.1 Main Parts ............................................................................................................... 20
2.2 Measuring Opening Overview ................................................................................. 21
2.3 Exterior around Burner ............................................................................................ 22
2.4 Details of around Burner (BGW-20N, 30N, 50N) ..................................................... 23
2.5 Details of around Burner (BGW-80N, 100N) ........................................................... 24
2.6 Solid Waste Incineration Chamber .......................................................................... 26
2.7 Details of Control Panel .......................................................................................... 27
2.8 Names and Functions of Display............................................................................. 28
2.8.1 Display top .................................................................................................. 28
2.8.2 Display bottom ............................................................................................ 29
2.9 Control Flowchart .................................................................................................... 30
2.10 Time Chart ............................................................................................................ 32
2.11 Disassembled View of Auxiliary Burner ................................................................. 33
2.12 Disassembled View of Waste Oil Burner ............................................................... 34
2.13 Details of Waste Oil Pump .................................................................................... 35

CHAPTER 3: OPERATION ................................................................ 36

1. Inspection and Preparation before Operation ........................................... 36

1.1 Inspection and Preparation of Incinerator and Peripheral Equipment ..................... 36
1.2 Cleaning Power Supply and Interior of Incineration Chamber ................................. 37
1.3 Preparation of Pipelines .......................................................................................... 39
1.4 Air Vent from Solenoid Pump (*) .............................................................................. 40

2. Operation ................................................................................................. 41
2.1 Operation ................................................................................................................ 41
2.1.1 Operation of Waste Oil Incineration ............................................................. 41
2.1.2 Operation of Solid Waste Incineration ......................................................... 43
2.2 Monitoring ............................................................................................................... 46

3. Stop .......................................................................................................... 47
3.1 Normal stop ............................................................................................................. 47
3.2 Recovering from Abnormal Stop.............................................................................. 48
3.3 Emergency Stop ...................................................................................................... 49

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CHAPTER 4: INSPECTION AND MAINTENANCE ........................... 50

1. List of Inspection Items and Inspection Frequencies ................................. 50

2. Daily Inspection and Maintenance ............................................................ 51

3. Inspection and Maintenance ..................................................................... 52

3.1 Checking Operation of Safety System .................................................................... 52
3.1.1 Flame Detector ........................................................................................... 52
3.1.2 Safety Devices ............................................................................................ 53
3.1.3 Power Supply Shutdown Test...................................................................... 57
3.1.4 Waste Oil Temperature High ....................................................................... 58
3.1.5 Waste Oil Temperature Drop ....................................................................... 58
3.1.6 Furnace Temperature Drop ......................................................................... 59
3.1.7 Burner Fan Air Pressure Drop (Option) ....................................................... 59
3.2 Atomize Air(*)/Oil Pressure Check ........................................................................... 61
3.3 Pressure Adjustment ............................................................................................... 62
3.3.1 Adjusting Atomize Air(*)Pressure ................................................................. 62
3.3.2 Adjusting Waste Oil Pressure...................................................................... 62
3.3.3 Adjusting D.O. (*)Pressure ........................................................................... 62
3.4 Cleaning Receiving Surface of Flame Eye(*) ........................................................... 63
3.5 Cleaning Auxiliary Burner ........................................................................................ 64
3.6 Cleaning Waste Oil Burner ...................................................................................... 66
3.7 Inspecting Furnace Castable .................................................................................. 69
3.8 Cleaning D.O. (*) Strainer ........................................................................................ 70
3.9 Inspecting and Cleaning of Burner Fan Inlet ........................................................... 71
3.10 Inspecting and Cleaning of Cooling Fan Inlet........................................................ 71
3.11 Cleaning Waste Oil Strainer .................................................................................. 72
3.12 Cleaning Waste Oil Tank (When docked) .............................................................. 72
3.13 Burner Incineration Air Adjustment ........................................................................ 73
3.14 Replacing Thermocouple ...................................................................................... 74

4. Handling Waste Oil Pump ......................................................................... 75

4.1 Piping ...................................................................................................................... 75
4.1.1 Piping Connection ....................................................................................... 75
4.1.2 Piping and Joints ......................................................................................... 76
4.1.3 Suction Filter ............................................................................................... 77
4.2 About Safety ........................................................................................................... 77
4.2.1 Safety Devices ............................................................................................ 77
vii
 4.2.2 Safety Measures ......................................................................................... 78
4.3 Operation Preparation ............................................................................................. 78
4.3.1 Pre-operation .............................................................................................. 78
4.3.2 Start-up........................................................................................................ 78
4.4 Inspection ................................................................................................................ 79
4.4.1 Inspection .................................................................................................... 79
4.4.2 Overhaul...................................................................................................... 79
4.5 Maintenance............................................................................................................ 79
4.5.1 Working Ambient Temperature .................................................................... 79
4.5.2 Checking Working Temperature Range ....................................................... 80
4.5.3 Checking Working Viscosity Range ............................................................. 80
4.5.4 Checking Rotation Direction ........................................................................ 80
4.6 Driving Pump........................................................................................................... 81
4.6.1 Installation Check ........................................................................................ 81
4.7 Intake Performance ................................................................................................. 81

CHAPTER 5: TROUBLE SHOOTING................................................ 82

1. Required Actions before Requesting Repair ............................................. 82

CHAPTER 6: STORAGE ................................................................... 86

1. Movement or Resale ................................................................................ 86

2. Export ....................................................................................................... 86

CHAPTER 7: DISPOSAL ................................................................... 87

1. Disposal Procedure .................................................................................. 87

viii
CHAPTER 8: GUARANTEE .............................................................. 88

1. Description of Guarantee .......................................................................... 88

2. Contact Information for Inquiries about Products and Instruction Manual .. 88

3. Sale of Instruction Manual......................................................................... 88

4. Sale of Parts ............................................................................................. 88

ix
CHAPTER 1: SAFETY

1. Safety Regulations
In sailing in the high seas, observe the Rules and Regulations for the Classification of Ships, the
SOLAS Convention, the MARPOL Convention, and other international conventions. Also observe
regulations in way ports or the country that vessel is registered and other applicable regulations.

Observe regulations about incineration substance and incineration district.

1．Incineration of substances specified in (4) and (6), Regulation 16, Annex VI of the MARPOL
Convention is to be prohibited.
Prohibited Material：
16-（4）-（a）：Residual including cargo as follow and container material that is contaminated
with one of them.
（a）Oil
（b）Poisonous liquid substance
（c）Marine contamination substance
16-（4）-（b）：Polychlorinated Biphenyls（PCBs）
16-（4）-（c）：Lead, cadmium or compound of these substance
16-（4）-（d）：Refined petroleum products containing halogen compounds
16-（4）-（e）：Drainage, mud and sludge oil that are not come out vessels.
16-（4）-（f） ：Residual of exhaust gas purification facilities.
16-（6） ：Shipboard incineration of polyvinyl chlorides is admitted on Incinerator that
has IMO Type Approval Certificate; however, incineration is not
recommended considering environmental regulations.
2．If areas exist in which incineration is prohibited by the Administration of the coastal state where
the ship is expected to ply, incineration is to be prohibited in such areas.
3．Incineration work is to be carried out according to the procedures given in the onboard
incinerator manual as specification in (7), Regulation 16, Annex VI of the MARPOL Convention.
Miura Shipboard Incinerator has IMO Type Approval Certificate; to operate shipboard
incinerator properly and keep incinerate performance, we ask you to read operation manual
carefully and follow procedures.

1
2. Knowledge and Skill Required for Safe Handling
Handling of this incinerator includes operating incinerator, operating controller for controlling operation
of incinerator, and maintaining them. Before carrying out work, fully understand this manual.
People satisfy all of following requirements are qualified to handle this incinerator. They are called
operators.

[Requirements to be satisfied by operators]

• Those who have received explanation of handling from our service staff during trial operation or
those who have received explanation of handling directly from them
• Those who have thoroughly read instruction manual for this incinerator and have full
understanding of content
• Those who have been permitted to handle this incinerator by chief engineer

Appoint chief operator from among operators.

3. Protective Equipment
Do not forget to wear helmet, protection eyewear, safety shoes safety belts, leather gloves, protective
masks, or other appropriate protective equipment when working on device.

4. Prohibition of Remodeling without Permission

Remodeling this incinerator without consultation with MIURA or repairing it in a way not specified in this
manual may seriously affect safety of incinerator. Do not remodel or repair boiler on your own.

5. Use of Specified Fuels

Do not use fuel that is not specified with this incinerator. Failure to observe this instruction may
seriously affect safety of incinerator.

2
6. Warning Labels (*) on Products
For safe use of incinerator, warning labels are attached on locations where attention to operating
precaution is called for.
If warning label comes off or tears, replace it with new warning label.
For more details about warning labels, contact with MIURA offices.

Scald Warning Label ···················· Attached near parts with hazard of scalding or hot parts
(Parts with surface temperature of over 60°C).
Do not touch surface around this warning label.

Catch Warning Label ···················· Attached on rotating parts with gaps in structure that could
catch fingers (Fingers might get trapped).
Do not get close to area near warning label before parts are
operated or when they are in operation.

Electric Shock Warning Label ········· Attached on electric equipment or around it that cannot be
insulated (or covered) completely.
To prevent electrical shock or electric leakage, prevent
objects or body from coming in contact with such equipment
or water from getting though it.

3
Warning Labels (*) Position Overview（Below picture is BGW-20N）
<Main Unit>

<Control Panel>
There is warning label inside power
supply BOX that says "HAZARDOUS
VOLTAGE WILL CAUSE SEVERE
INJURY."

4
7. Precautions for Safe Handling
7.1 Safety Precautions in Installation
In carrying out installation work, observe following safety precautions:

WARNING
When loading incinerator on board, use two-point hanging. Also, hang it only from
designated points. Hanging from other points may cause incinerator to fall over.

Make sure that incinerator is secured to base with bolts that are one size smaller to
compensate for thermal expansion, and that the top is secured with double-nuts.

Make sure that rolling stays are mounted in at least two places on eye plates at the top of
incinerator. Without rolling stays, vibration may cause incinerator to break sooner. Also
make sure that thermal expansion is taken into account in mounting of rolling stays.

Check that funnel (exhaust stack) is properly constructed.

Gaps, faulty construction, blocked outlet of funnel (exhaust stack), or other problems may
cause carbon monoxide poisoning due to exhaust gas or fire.
Make sure that incinerator and stack are connected with expansion joint.
Thermal expansion of stack may break incinerator.
Make sure that connection between incinerator and stack has diameter of incinerator outlet,
and it is bent after coming up straight for distance that is at least four times longer than
diameter of stack. Without making straight tube part four times longer than diameter of
stack, the reduced performance of ejector (*) may lead to insufficient negative pressure
inside furnace .

Instruction
Check that the first bent part is welded piping joint.
If stack diameter is altered, make sure that it is altered gently at point that keeps distance at
least four times longer than diameter of stack away from cooling fan outlet surface. Drastic
alteration of diameter may increase pressure loss in stack and prevent normal incineration
in incinerator.
Check that hand hole is set up where stack is bent or in other places where unburned
materials tend to accumulate. Accumulation of unburned materials may prevent normal
incineration in incinerator.
Make sure that hand hole is not smaller than stack in diameter by more than two sizes, and
that it is not sticking inward. It may increase the pressure loss in stack and prevent normal
incineration in incinerator.
For fuel piping, have designated contractor install it.
Make sure that installation site of the incinerator is not where inflammable hazardous materials
are handled. Install incinerator on floor made of incombustible material. Also, install it away from
any combustible materials.
They may ignite due to hot part of incinerator to cause fire, resulting in accident involving death.
Ignition due to hot part may cause fire.
If funnel is passed through wall that is made of flammable material, use noncombustible
material for fire protection.
Power supply must be connected with wire of specified diameter and securely grounded.
Also, make it dedicated power supply, and use earth leakage circuit breaker (with
overcurrent protection). Failure to observe this instruction may cause electrical shock,
Earth
connection burn ,or other serious accidents.

5
<Loading incinerator on board>
• Use two-point hanging when loading incinerator on board.
<Installation of incinerator>
• Taking thermal expansion into account, secure incinerator to base using bolts that are one size
smaller, and secure the top with double nuts. (φ25 mm  M20 bolts)
• Take measures to prevent combustible gas from accumulating around incinerator.
<Stabilizing incinerator>
• Incinerator has eye plates at the top; in at least two places on eye plates, attach rolling stays which
are designed to be connected to nearby hull construction with some coupling rods. Attach rolling
stays carefully while providing each of them with plenty of excess space for expansion.
Use the same eye plates on hull construction as ones used on incinerator.

Deck

Base
Stiffening rib
[Example of stabilizing]
[Reference]
Stabilizing ( Material：SS t=12 )

Angle washer

W-nut (M24)

Angle washer

W-nut (M20)

Washer

6
7.2 Safety Precautions in Pre-operation Inspection and Preparation
(Excerpt from page 36~)
In pre-operation and preparation, observe following safety precautions:

WARNING
Keep flammable materials (waste contains oil, container contains oil) away from incinerator.
They may ignite due to hot part of incinerator to cause fire, and resulting in accident
involving death.

Do not put flammable materials in control box.

They may ignite to cause fire, and resulting in accident involving death.

Prohibition Do not open the charging door while there is residual flame (*) and unburned gas inside.
It may cause fire or backfire (*), which may result in burning.

To ensure safety, do not vent during incineration.

Do not operate breaker of main power supply and equipment in control panel with wet
hands.
Failure to observe this instruction may cause electrical shock due to high voltage, resulting
Do Not Touch
with Wet Hands in injury or death.
Check that funnel (exhaust stack) is properly constructed.
Gaps, faulty construction, blocked outlet of funnel (exhaust stack), or other problems may
cause carbon monoxide poisoning due to exhaust gas or fire.
Run ventilation (air supply and exhaust equipment) in engine room and check that air vent
is not blocked off. If air vent is blocked off, carbon monoxide poisoning due to exhaust gas
or explosion may caused.
When opening door, do not stand in front of opening in case of backfire.
Removed ashes must be sealed in non- flammable container and cooled down.
Instruction
Failure to do so may cause fire.
Make sure to complete air vent during pre-purge (*) (within 30 seconds of pressing
Incineration Start switch). Upon completion of pre-purge, ignition starts.
Waste oil leaked out of system may ignite to cause fire, resulting in accident involving
death. Check connections of piping and air valve for leaks. Dispose of fuel oil leakage and
waste cloth used to wipe off oil immediately in an appropriate manner.

7
 CAUTION
If the spacing of grate (*) is not even, the solid waste is not incinerate completely, and an
incineration is take more time.

Use caution not to injury fingers when arrange the roaster.

Instruction
There is too much sludge (*) in piping, it could clog up and damage equipment and misfire.

Waste oil spill occur, it may have adverse influence on marine ecosystem. Take measures to
prevent fuel oil spill and establish methods for coping with spillage in advance.

Even if temperature of incineration chamber is low, unburned materials and ash can still be hot
and cause burns.
Caution:
Hot

7.3 Safety Precautions in Operation Incinerator

(Excerpt from page 41~)
In operating incinerator, observe safety precautions:

DANGER
Ignition using matchsticks and lighter is prohibited.

Do not use incinerator without safety devices.

Cooing operation (*) continues for 4 hours after burning is stopped. Do not open door until
cooling operation is finished.

Do not stand just in front of opening side when door is open, in case of backfire (*).
Prohibition
When solid waste is burned, use the equipped burner on incinerator only.
When solid waste is burned, do not put next solid into incinerator four 4 hours until incineration
is finished.

Solid waste should be MEPC76 (40) provided element and determined amount.

Before opening door, look through sight window to make sure that there is no residual flame (*)
or smoke inside furnace.
Instruction

8
 WARNING
Do not operate breaker of main power supply and equipment in control panel with wet
hands.
Failure to observe this instruction may cause electrical shock due to high voltage, resulting
Do Not Touch with
Wet Hands in injury or death.
Waste oil leaked out of system may ignite to cause fire, resulting in accident involving death.
Check connections of piping and air valve for leaks. Dispose of fuel oil leakage and waste
cloth used to wipe off oil immediately in an appropriate manner.

Cooling fan must be continuously on between incineration and cooling operations. It is

turned off at such time, workers could get burned or the equipment could be damaged.

For proper incineration, you must adjust the flow to match the conditions of waste oil.
Incinerator is adjusted so that the flow control valve (ball valve) is completely open when
waste oil is burned. However, when the heating value of waste oil is high, the cock should be
adjusted accordingly. This is because over-input could cause damage inside the incinerator.
(Adjust the temperature inside incinerator to 900 and 1000°C.)
(Use waste oil pressure gauge to record indicated value of primary pressure and secondary
Instruction
pressure.)
Use caution to avoid burning when removing ashes.
After 4 hours cooling operation (*), some remains still have heat.
It may cause fire or backfire (*).
If you detect abnormal noise, odd smell, smoke, heating of incinerator itself, and other
abnormal conditions during operation, immediately push incineration stop switch and close
waste oil and D.O. (*)valves. If you do not do this, fire or backfire (*) could occur.
If you detect malfunctions, abnormalities, contact with MIURA offices. Do not use incinerator
until problems have been resulted. Operating equipment when there is a malfunction could
result in fire or explosion of equipment.

Fuel piping is hot; touching it may cause burning. Use caution not to directly touch the fuel
piping.
Caution:
Hot

9
 CAUTION
Do not incinerate wastes containing harmful ingredients.
MARPOL prohibits incineration of following materials:
(1) Residual including cargo as follow and container material that is contaminated with one
of them.:
(a)Oil
(b)Harmful liquid materials
(c)Marine contamination substances
Prohibition (2) Polychlorinated biphenyl (PCBs)
(3) Lead, cadmium or compound of these substance
(4) Refined products containing halogen compounds
(5) Drainage, mud and sludge oil that are not come out vessels.
(6) Residual of exhaust gas purification facilities.
When preheating furnace using D.O. (*), pull down lever on three way valve located at the top of
waste oil pump to prevent D.O. (*) from flowing into waste oil tank. Also, do not pass steam
tracing of waste oil line. It may damage equipment in waste oil line.

Do not incinerate solid waste beyond capacity as below. Such waste might not burn properly,
and might damage incinerator.
MEPC76 (40) provides the maximum weight of a solid waste load.
Percent of BGW-20N,30N,50N BGW-80N,100N
Type of solid
total waste
waste % Specified weight (kg)

Food waste 50 10 20
Paper 15 3 6
Cardboard 20 4 8
Cloth 5 1 2
Plastic 10 2 4
Make-up of
20 40
mixed waste
Instruction

If the proportion of solid wastes is different from that above, please divide up the waste into
units and incinerate at different times.
Please note, however, that maximum weight depends on condition and type of solid waste.
If waste of only one kind is being incinerated, please do not incinerate more than the maximum
amount listed below.
BGW-20N,30N,50N BGW-80N,100N
Types of loaded waste
Specified weight (kg)
Paper, cardboard only 17 35
Plastic only 3 10
Solid sludge (*) only 8 15

Plastics, cloths soaked with oil (include edible oil), and other wastes of high heating value
should be placed on flat furnace bottom (*). When incinerating wastes contained oil (include
edible oil), do not throw mixing with plastic and make sure that amount of wastes is or less than
amount of plastic. Failure to do so may cause failure of equipment.

10
By all means, load solid waste through the charger door. If you load it through the ash removal
door, you could cause incomplete incineration and / or damage the equipment.
Even if only a small amount of waste is being incinerated at on time, it still takes at least ONE
HOUR for incineration.
When incinerating solid waste, please set the “Incineration changeover” switch to “SOLID
WASTE.” Otherwise, you could cause a breakdown in the equipment.

11
7.4 Safety Precautions in Operation Stop
(Excerpt from page 41~ and from page 47~ )
In bringing incinerator to stop, observe following safety precautions.

DANGER
Before opening door, look through sight window to make sure that there is no residual flame (*)
or smoke inside furnace.
Instruction

WARNING
Do not open charging door or ash removal door until furnace is sufficiently cooled down. Even
after cooling timer stops in four hours, doors remain locked until temperature in furnace comes
Prohibition
down to 220°C; however, let it cool down to 100°C so as to prevent risk of fire or burning.

Do not operate breaker of main power supply and equipment in control panel with wet hands.
Failure to observe this instruction may cause electrical shock due to high voltage, resulting in
Do Not Touch injury or death.
with Wet Hands

Do not turn off circuit breaker for main power. It would stop cooling fan, interrupting cooling
operation (*).
Stopping cooling fan before sufficient cooling is achieved may cause damage to furnace.
Turning on circuit breaker for main power after turning it off during the cooling operation
Instruction reactivates cooling timer (four hours), and the cooling operation continues for time remained
on timer.
Doors are locked while cooling timer is active.

Fuel piping is hot; touching it may cause burning. Use caution not to directly touch the fuel
piping.
Caution:
Hot

If abnormal stop of incinerator occurs, follow procedure for solving cause of alarm.
Improper operation may result in personal injury.

Emergency stop is operation that primary purpose is to shut down equipment immediately in
case of emergency. Safety check steps are omitted in this operation that may lead to
Caution unexpected accidents or failure. Perform emergency stop only in case of emergency that there
is no other option. Also note that judgment on whether or not to perform emergency stop
depends on situation, so user should decide based on situation of operation site.

12
 CAUTION
When stopping this equipment, replace oil in waste oil piping inside equipment with D.O. (*)
Failure to do so may lead to breakage of gauges and waste oil pump.
Make sure to continue incineration with D.O. (*) for 10 to 20 minutes. Insufficient replacement
Instruction causes failure of equipment.

7.5 Safety Precautions in Inspection and Maintenance

(Excerpt from page 50~ )
In inspections and maintenance, observe following safety precautions:

DANGER
If electrical current flows during wiring of motor, electrocution and other personal injury as well
as malfunction of equipment may occur, leading to serious accidents.
Caution

WARNING
Do not perform operations other than ones instructed. Performing such operations may result in
personal injury.
Prohibition

Shut off main power before cleaning.

Do not operate equipment with wet hand. Electric shock due to high voltage may cause injury or
Do Not Touch death.
with Wet Hands

If abnormal pressure is observed, stop operation immediately and contact with MIURA offices.
Continuing operation with abnormal pressure may cause damage to incinerator and result in
personal injury.

Close main fuel valve to depressurize the piping.

Splashing of fuel may cause fire.

Instruction Replace any defective or damaged parts. Use of equipment with defective or damaged parts
may cause fuel leakage, leading to fire or explosion of equipment.

Securely tighten steel pipe connectors. Failure to do so may cause fuel leakage, leading to fire
or explosion of equipment.

13
 WARNING
Do not touch pump or motor during or right after operation.
There is risk of burning.

Instruction When abnormal condition is detected, stop pump immediately and repair defective part(s).
Using equipment without repairing may result in serious accidents.

Involving of fingers, hands, or objects in driving parts may result in personal injury.

Use of waste oil pump above working ambient temperature may cause damage to waste oil
pump or motor and result in serious accidents.
Caution

When hot oil is used, pumps and leaked oil may cause burning.

CAUTION
Range and differential of pressure switch are set to appropriate values at time of shipment.
Do not change settings unless there is problem with alarm occurrence.
Prohibition

When replacing thermocouple, use caution not to break ceramic protector tube.
Any impact may damage ceramic protector tube.
When replacing ceramic protector tube, install heat insulator in gap between castable and
protector tube.
Instruction
Mixing of foreign substance in oil significantly shortens life of pump. In the worst case, it
breaks pump. Filter needs to be cleaned regularly. Use of clogged filter causes abnormal
noise, vibration, and poor discharge, leading to breakage of pump.

Exceeding tightening torque for piping may break opening of pump.

Excessive application of teflon tape and use of liquid sealing agent reduce friction and cause
over-tightening, that may break opening of pump.
Caution

Insufficient flushing of piping leads to failure of pumps and connection devices.

14
 CAUTION
Mixing of air and generation of bubbles in pipelines cause noise, vibration, and heat
generation, that may result in breakage of pump.
Depending on properties of waste oil to be treated, rotor of pump may wear out and show
reduced performance early on. Worn pump rotor is not covered by warranty.
Use of liquid above maximum temperature may significantly shorten life of waste oil pump,
lower its performance, and cause liquid leakage.
Use of liquid outside working viscosity range may significantly shorten life of waste oil pump,
lower its performance, and cause liquid leakage.
Caution Large degree of misalignment between waste oil pump and motor increases vibration and
noise, and it may result in breakage of pump.
When attaching coupling to pump shaft, hammering in coupling hard causes pump to
malfunction.
When resistance is greater at discharge side, intake performance is reduced.
When air is mixed in at intake side, intake performance is significantly reduced.
Various parts of incinerator hold high heat right after incineration is stopped. Working without
letting various parts to sufficiently cool down may result in burning from coming in contact with
Caution: high temperature parts.
Hot

7.6 Safety Precautions in Working on Failures

(Excerpt from page 82~ )
In working on failures, observe following safety precautions:

WARNING
To take required action on alarm, turn off circuit breaker of the incinerator main power four
hours after incineration stop, and follow specified procedure for each item to perform it
properly.
If problem persist after performing specified repair procedure, follow Chapter 3, "2. Operation,
Instruction 3.Stop" to stop the operation immediately, and contact with MIURA offices.
Do not perform operations other than ones instructed. Doing so may result in serious
accidents.

7.7 Safety Precautions in Storage Work

(Excerpt from page 86~ )
In storage work, observe following safety precautions:

WARNING
Do not perform installation work and connection of incidental equipment unless it is specified.
Failure to observe this instruction may cause physical injury.
Prohibition

15
CHAPTER 2: OVERVIEW

1. Product Overview
1.1 Functions
This shipboard incinerator is designed to incinerate waste oil generated on board.
Along with incineration of waste oil, it can also incinerate solid waste.
Basic operation cycle is six to eight hours for one round of incineration of both solid waste and
waste oil per day.
After solid waste is charged, turn on the waste oil burner to incinerate waste oil and solid waste.
Once incineration of solid waste is finished, incineration of only waste oil continues.

1.2 Features
This equipment has following features:
It is designed and manufactured based on MEPC76 (40).

<Batch charge of solid waste>

• Solid waste can be charged in batch and incinerated with waste oil.
• Batch incineration of waste reduces workload.

＜Structure of incinerator＞
Using semi-distillation-type incineration method, materials containing a lot of water can be burned
simultaneously with producers of high heat such as plastics. Furthermore, since this incinerator
can be opened from both sides of the burner, it can easily repaired and maintained.

<Structure of burner>
• Waste oil burner uses air atomizing burner with high atomizing performance.
• Combination of air atomizing burner and dedicated fan helps maintain good atomizing
incineration.

<Automatic incineration control>

• Purge, ignition, incineration, and cooling of furnace are controlled automatically. (Operation only
requires starting cooling fan and pressing incineration switch.) During automatic incineration,
operation status is constantly monitored by various safety limit switches.
• In case properties of waste oil are particularly poor, there is operation mode that auxiliary burner
and waste oil burner are simultaneously used for incineration.

16
＜Ejector(*) System＞
The ejector, which is installed at the incinerator exit, maintains the negative pressure within the
incinerator and cools gases by mixing them with diluted air. This incinerator has ejector system it
protects the fan from corrosive gases.

<Controlling dioxin>
Dioxins are generated when incompletely combusted ingredients at outlet of incineration
chamber bond with chlorine in temperature range between 300 and 400°C. This incinerator is
equipped with the ejector in the exhaust gas outlet to suppress the formation of dioxins. The
ejector part immediately cools exhaust gas to 200°C or less, mixing the cooling air.

Figure 2-1 Structure overview

17
 1.3 Specifications
Specifications BGW-20N BGW-30N BGW-50N BGW-80N BGW-100N
kW 301 417 650 1,067 1,299
Max. Capacity
4 4 4 4
kcal/h 25.8×10 35.8×10 55.8×10 91.7×10 112×104
kW 233 349 582 930 1,163
Waste Oil

Amount of Heat
kcal/h 20.0×104 30.0×104 50.0×104 80.0×104 100.0×104
Max Capacity kg/h 24.3 36.4 60.7 97.1 121.4
kW 68.0 136.0
Solid Waste

Amount of Heat
kcal/h 58,000 117,000
Max Capacity kg/h 20.0 40.0
Max Capacity kg/time 20.0 40.0
Control System Automatic Incineration Controller
Waste Oil Burner Air Atomizing Burner
Type Pressure Atomizing Burner
Aux Burner

Fuel
Consumption kg/h 4.3 5.5
(D.O. (*) )
Ignition High Voltage Electric Spark
Power 3φ 440V，60Hz
Installed Electric
kW 7.0 9.7 17.9 34.4 43.2
Capacity
Width 2,200 2,355 3,155
Dimensions

Depth mm 1,210 1,540

Height 2,165 2,425 2,710
Mass kg 3,200 3,470 6,750
Waste Oil Inlet 25A
Connection

Atomize Air Inlet 15A

D.O.(*) Inlet 15A
Funnel Diameter 350A 400A 500A 700A 800A
Note 1. Max. capacity is based on heating value 8,240 kcal/kg, with specific gravity being 1.
Note 2. Component of solid waste is specified in MEPC76 (40) Annex (A1.4).

18
1.4 Flow of Shipboard Incinerator
＜Piping flow（BGW-20N,30N,50N）＞

＜Piping flow（BGW-80N,100N）＞

No. Item name Remarks No. Item name Remarks

1 D.O. (*) strainer 8A #100 13 W.O. solenoid valve 10A
2 Solenoid pump (*) 6A 14 W.O. pressure gauge φ60 8A
3 D.O.(*) pressure gauge φ60 8A 15 Orifice 10A
4 D.O.(*) switch (low) 10A 16 Flow rate control valve(Ball valve) 10A
5 Auxiliary solenoid 8A 17 Atomize air (*)pressure 10A
Valve reducing valve
6 Safety valve 0.2MPa 18 Atomize air (*) solenoid valve 10A
7 Three way valve 10A 19 Atomize air pressure gauge φ60 8A
8 W.O. compound φ60 80A 20 Atomize air pressure 10A
pressure gauge switch (low)
9 W.O. pump 21 Exhaust gas thermostat
10 W.O. pressure gauge φ60 8A 22 Furnace temperature
thermocouple
11 W.O. pressure switch (low) 10A 23 Furnace pressure switch
12 W.O. pressure reducing valve 10A 24 Ball valve

19
 2. Part Names and Functions
2.1 Main Parts

Cooling fan (Back)

Motor valve

(*)
Ejector
エゼクタ（*）

Release and cool incineration gas

Cooling Fan
to keep negative pressure inside
the surface. The fan for sending cooling air to the
ejector. (On BGW-80N,100N, cooling
fan is located in a different place.)

Control panel
Switches and
Charging door displays for operating
Door for the incinerator.
loading solid P27
waste. Name and
Functions of
Displays

Sight window
A window for
observing the
incineration
conditions of solid
Details of
waster.
piping
around
Ash removal door burner
The door for
removing the
ashes of
P23 BGW-20N,30N,50N
incinerated solid
waste. P24,25 BGW-80N,100N

20
 2.2 Measuring Opening Overview
Furnace pressure switch

Furnace pressure
switch is inside this
case.

Exhaust gas thermostat

Stop the incineration

when the flue gas
temperature is higher
than control value.

Furnace pressure
measuring opening

Furnace thermocouple

Note
Attach heat insulator casing during operation.

＜ Interior of thermostat and furnace pressure Furnace pressure switch

switch（Side）＞
Silicone rubber hose for
Stop the incineration when pressure in furnace pressure
incineration chamber is higher than measurement

control value. Exhaust gas thermostat

Note
See final drawing for control value.

21
2.3 Exterior around Burner
●BGW-20N, 30N, 50N Cover closed

●BGW-20N, 30N, 50N Cover opened

22
 2.4 Details of around Burner (BGW-20N, 30N, 50N)
27 1 2 3 4 5 6
7

26 9

10

11
25
12

13

14

24
15

23
22 21 20 19 18 17 16
(*)
16. W.O. pump (pump part)
1. Atomize air pressure (pressure gauge)
17. Compound pressure gauge
2. Auxiliary burner pressure (pressure gauge)
18. Pressure gauge valve
3. W.O. pressure secondary (pressure gauge)
19. Pressure reducing valve
4. W.O. pressure primary (pressure gauge)
P40 "Chapter3.1.4 Air Vent from Solenoid Pump (*) "
5. Pressure gauge valve
20. W.O. pump (motor part)
6. Air vent valve
21. Flame eye
P40 "Chapter3.1.4 Air Vent from Solenoid Pump(*) "
P63 "Chapter4.3.4 Cleaning Receiving Surface of
(*)
7. Atomize air pressure switch (pressure gauge)
Flame Eye(*) "
P61 "Chapter4.3.3 Pressure Adjustment "
22. Auxiliary burner
8. Auxiliary burner pressure switch (pressure gauge)
P64 "Chapter4.3.5 Cleaning Auxiliary Burner "
9. Atomize air pressure solenoid valve
23. Flow control valve
10. Auxiliary burner solenoid valve
24. W.O. burner
11. W.O. solenoid valve
12. Solenoid pump P66 "Chapter4.3.6 Cleaning Waste Oil Burner "

P40 "Chapter3.1.4 Air Vent from Solenoid Pump (*) " 25. Burner fan：Device for sending air necessary for

13 W.O. pressure switch burner incineration.

P61 "Chapter4.3.3 Pressure Adjustment " 26.Damper：Device for adjusting incineration air.

14. Three way valve P73 "Chapter4.3.13 Burner Incineration Air

15. Escape valve Adjustment "

P35 "Chapter2.2.13 Details of Waste Oil Pump" 27. Test cock（Test cock is installed each pressure gauge.）
23
 2.5 Details of around Burner (BGW-80N, 100N)

4 14 15 1 2 3
13

4
5
6
12
7

P24
11

10 9 8

1. Atomize air (*) pressure switch (pressure gauge) 9. Auxiliary burner

2. Auxiliary burner pressure switch (pressure gauge) P33 "Chapter2.2.11 Disassembled View of
3. W.O. primary pressure switch (pressure gauge) Auxiliary Burner"

P62 "Chapter4.3.3 Pressure Adjustment " 10. Flame eye

P81 "Chapter5.1 Required Actions before P63 "Chapter4.3.4 Cleaning Receiving
Requesting Repair." Surface of Flame Eye(*) "
4. Pressure gauge valve 11. Burner fan：Device for sending air necessary for
5. Atomize air pressure solenoid valve burner incineration .
6. Atomize air pressure reducing valve 12. W.O. burner

P82 "Chapter5.1 Required Actions before P34 "Chapter2.2.12 Disassembled View of

Requesting Repair." Waste Oil Burner"
7. W.O. solenoid valve 13. Damper：Device for adjusting incineration air.
8. W.O. pump (motor part) 14. W.O. secondary pressure gauge

P35 "Chapter2.2.13 Details of Waste Oil 15. Test cock（Test cock is installed each pressure
Pump" gauge.）

24
＜Details of P24「A」＞

1 2 3 4

10

6
8

1. Auxiliary solenoid valve

2. Air vent

P40 "Chapter3.1.4 Air Vent From Solenoid

Pump(*) "
3. Solenoid valve
4.D.O.(*) Strainer

P70 "Chapter4.3.8 Cleaning D.O.(*) Strainer "

5. W.O. pressure reducing valve
6. Three way valve
7. Escape valve
8. W.O. pump (pump part)

P35 "Chapter2.2.13 Details of Waste Oil

Pump"
9. Pressure gauge valve
10. Compound pressure gauge

25
2.6 Solid Waste Incineration Chamber

P37 "Chapter3.1.2 Cleaning Power Supply and

Air holes Interior of Combustion Chamber"

Air for incineration of solid waste is

supplied through these holes.
*Door side has also Air holes.

Flat furnace (*) P37 "Chapter3.1.2 Cleaning

Grate (*) Power Supply and Interior
of Incineration Chamber"
Leads carbonization gas to
the burner chamber (*)

26
 2.7 Details of Control Panel

1 2 3 4

13

12 11 10 9 8 7

1 I/O board 9 Relay

2 Transformer for breaker 10 Switching power for permission for
door open solenoid
3 Switching power for board 11 Alarm test switch
4 Fuse 12 Transformer for control power
5 Bell 13 CPU board
6 Circuit breaker for piping
7 Cooling fan magnetic contactor
8 Relay for burner blower

27
 2.8 Names and Functions of Display
2.8.1 Display top

Power lamp
D.O. (*) select lamp
Lights up when incinerator main power is on.
Lights up when D.O. is selected

Furnace temperature high lamp

Miss fire lamp
Lights up to indicate anomaly when furnace
Lights up to indicate anomaly in temperature is equal to or higher than
case of misfire or when flame failure control temperature.
occurs during incineration.
Pilot burner oil pressure drop lamp Furnace temperature low lamp
Lights up to indicate anomaly when furnace
Lights up to indicate fuel oil pressure temperature is equal to or higher than
for pilot burner is low. control temperature.

Exhaust gas temperature high lamp

Waste oil abnormal pressure lamp

Lights up to indicate anomaly when

Lights up to indicate waste oil
temperature of exhaust gas is equal
pressure is too low.
to or higher than control value.
Waste oil temperature abnormal lamp
Furnace pressure high lamp
Lights up to indicate anomaly when
Lights up to indicate anomaly
waste oil temperature is abnormal.
when furnace pressure is equal to
or higher than control value
Low air pressure lamp
Cooling fan abnormal lamp
Lights up to indicate anomaly when
Lights up to indicate anomaly when
atomize air pressure is equal to or
cooling fan is not working properly.
lower than control value.

BCU abnormal lamp

Burner fan abnormal lamp
This lamp flashes when there is no Lights up to indicate anomaly when
power during operation, or the BCU burner fan motor receives current
is not operating normally. equal to or larger than control value.

Incineration chamber thermometer

28
 2.8.2 Display bottom

Incineration lamp
Cooling fan lamp
Blink when incineration mode is
Lights up when cooling fan is on. on. Lights up when flame is
detected.

Cooling fan switch Incineration switch

Switch this ON to start cooling fan; Press this button to start
OFF to stop fan after furnace is incineration.
cooled down (in about four hours).

Incineration changeover switch Incineration stop switch

 To incinerate solid waste, turn Press this button to stop
switch to “Solid Waste“
incineration.
 To incinerate no solid waste,
turn switch to “W.O. only.”
 When combustibility of waste
oil is low, turn switch to “W.O.
with pilot.”

Oil select switch Lamp test switch

Switch for select fuel oil type when Switch to check operation of
incineration. alarm/operation indicator lamps.
・Turn switch to “W.O“ when use While this switch is pressed, all
W.O. lamps light up.
・Turn switch to “D.O(*) “ when use
D.O. (*)

Bell stop switch Alarm reset switch

Switch to stop only the bell when Switch to cancel interlock
alarm occurs. operation.

Breaker ON lamp Emergency shutdown switch

Switch to shut off the power
supply during an emergency.

29
2.9 Control Flowchart

30
Control Flowchart (continued)

A B

31
2.10 Time Chart

32
2.11 Disassembled View of Auxiliary Burner

No. Item name Quantity Remarks

A-1 Baffle plate (completed) 1 A334-005-6001-4

A-2 Nozzle tip 1 0509-600-0150-0
A-3 Flame eye cover 1 A334-156-5001-6
Nozzle pipe (completed) A334-005-4001-6 (20N,30N)
A-4 1 A334-022-6001 (50N)
A334-039-2000-6 (80N,100N)
Ignition rod 0881-122-0000-0 (20N,30N)
A-5 1 A334-023-0000-0 (50N)
A334-044-2000-0 (80N,100N)
A-6 Flame eye 1 0000-AA7-5101-0
A-7 SUS pipe joint 1 0000-AD0-4833-0
A-8 Packing (ignition rod) 1 9691-015-4782-0
A-9 Plug cap 1 0085-000-0000-0
(+) Pan head screw switch, with
D-1 4 M4×10L
W
(+) Hexagon upset bolt switch,
D-2 1 M6×16L
with W
D-3 Insulator bushing 2 9785-005-4771-0
D-4 Gland 1 A15C
D-5 Hexagon socket set screw 1 M6×8L

33
 2.12 Disassembled View of Waste Oil Burner

Flow

No. Item name Quantity Remarks No. Item name Quantity Remarks
A334-072-4000-4 (20N)
Baffle plate
A-1 1 A334-072-5000-4 (30N,50N,80N） C-1 Hexagon nipple 2 1/4B
A334-052-1000-4 (100N)
A334-005-1011-4 (20N,30N,50N)
Shroud
A-2 1 A334-025-2001-4 (80N) C-2 Bushing 1 1/2B×3/8B
A334-052-0001-4 (100N)
A334-005-2050-6 (20N,30N,50N)
A-3 Burner cover plate 1 C-3 Copper pipe fitting 1 B10-PT3/8
A334-025-3000-6 (80N,100N)
A-4 Sight window 1 0065-029-3000-0 C-4 Bushing 1 1/4B×3/8B

A-5 Sight window cover 1 9785-005-2431-4 C-5 Socket 1 3/8B

Nozzle case Hexagon socket set

A334-073-8011-4 (20N,30N)
A-6 1 D-1 3 M5×8L
A334-019-3021-4 (50N,80N,100N)
screw

W.O. nozzle (+) Pan head screw

A334-066-6010-4 (20N)
A-7 1 D-2 2 M4×10L
A394-019-7020-4 (50N,80N,100N)
switch, with W
A334-008-5000-4 (20N,30N)
A-8 Nozzle pipe 1 D-3 Hexagon socket bolt 4 M6×10L
A334-012-8020-4 (50N,80N,100N)
A-9 O ring 1 0000-000-IS70-0 D-4 Hexagon socket bolt 2 M6×16L
A334-008-4000-4 (20N,30N)）
A-10 Casing 1 D-5 Hexagon nut 2 M6
A334-012-7011-4 (50N,80N,100N)
A-11 SUS pipe joint 1 A10-PT3/8 D-6 Union packing 1 3/8B

A-12 Ball valve 1 0148-342-0310-0

Orifice 2425-013-4652-4 (20N)

2425-013-4622-4 (30N)
A-13 1 3350-003-5212-4 (50N)
A334-035-5001-4 (80N)

34
2.13 Details of Waste Oil Pump
Waste oil pump consists of geared motor and pump part that are connected with coupling.
It has safety valve that lets waste oil escape to waste oil return line in case rapid pressure fluctuation
occurs in waste oil pump on primary side. Safety valve is attached to SUS joint of escape piping.
For information on how to handle waste oil pump, refer to chapter on handling of waste oil pump.
P75 "Chapter 4. 4. Handling Waste Oil Pump"

Geared motor Waste oil

pump part

Coupling

Waste oil
Return

Escape valve

35
CHAPTER 3: OPERATION

1. Inspection and Preparation before Operation

1.1 Inspection and Preparation of Incinerator and Peripheral Equipment
Before stating operation, check followings:

WARNING
Keep flammable materials (waste contains oil, container contains oil) away from incinerator.
They may ignite due to hot part of incinerator to cause fire, and resulting in accident
involving death.

Prohibition Do not put flammable materials in control box.

They may ignite to cause fire, and resulting in accident involving death.

Check that funnel (exhaust stack) is properly constructed.

Gaps, faulty construction, blocked outlet of funnel (exhaust stack), or other problems may
cause carbon monoxide poisoning due to exhaust gas or fire.

Run ventilation (air supply and exhaust equipment) in engine room and check that air vent is
Instruction
not blocked off. If air vent is blocked off, carbon monoxide poisoning due to exhaust gas or
explosion may caused.

a) Check that funnel (exhaust stack) are properly installed.

• If any problem is detected with funnel, do not operate incinerator.

b) Make sure that ventilation (air supply and exhaust equipment) in engine room is in operation.
• If air ventilation system is stopped, turn it on.

c) Make sure that there is no flammable materials around incinerator.

• If flammable materials are present, move them to safe place free of fire.
• If oil spills, wipe it off immediately.

d) Check locations and how to use extinguishing equipment and first aid kit.
• If such equipment is missing, make it available.

e) Make sure that emergency contacts and procedures are established in case of fire or accidents.

36
1.2 Cleaning Power Supply and Interior of Incineration Chamber

WARNING
Do not open charging door while there is residual flame (*) and unburned gas inside.
It may cause fire or backfire (*), which may result in burning.
Prohibition

Do not operate breaker of main power supply and equipment in control panel with wet
hands.
Failure to observe this instruction may cause electrical shock due to high voltage, resulting
Do Not Touch
with Wet Hands in injury or death.

When opening door, do not stand in front of opening in case of backfire.

Removed ashes must be sealed in non- flammable container and cooled down.
Instruction
Failure to do so may result in fire.

CAUTION
If the spacing of grate (*) is not even, the solid waste is not incinerate completely, and an
incineration is take more time.

Instruction Use caution not to injury fingers when arrange the roaster.

Even if temperature of incineration chamber is low, unburned materials and ash can still be
hot and cause burns.
Caution:
Hot

a) Turn on breaker of main power supply.

• Power lamp lights up, and temperature is displayed.

b) Check temperature in incineration chamber.

c) Make sure that it is 45°C or lower in incineration chamber.

d) Look through sight window to make sure that there is no residual flame(*) or smoke inside
furnace.

e) Open charging door.

f） Hard ash that remains in the incineration chamber should be pushed through the grate(*) to the
burner chamber(*) below.

37
g）Make sure that the roasters are evenly spaced.
・If the spacing is not even, re-arrange the roaster so that they are evenly spaced.

h）Insert cleaning rod (accessory tool) about 150 mm into air holes made in solid waste incineration
room to clean them; make sure that they are not clogged.

Note
Clogged air holes slow down process of solid waste incineration.

i）Inspect interior of furnace, and make sure that castable has not fallen off and no other parts are broken.
• If no problem is detected, close charging door.

j）Open the ash removal door and rubbish away the ash.

k）Inspect interior of furnace, and make sure that castable has not fallen off and no other parts are broken.
• If no problem is detected, close ash removal door.

Note
• If charging door and ash removal door are left open, safety system is activated and incineration is
not start. Close doors and turn handle to where it stops.
• Thermocouple inside furnace deteriorates over time even if it is used normally. Check installation
condition regularly and, as consumables, replace it before the end of its life.

38
1.3 Preparation of Pipelines

CAUTION
There is too much sludge (*) in piping, it could clog up and damage equipment and misfire.
Instruction

Note
For start-up and incineration stop processes, use D.O. (*) Failure to do so may cause piping to clog
and equipment to break.

Note
Keep pressure gauge valve open all the time except during maintenance.

a) Let waste oil thoroughly clarified in waste oil tank, and remove sludge settled on the bottom from
drain hole.
• If sludge is not sufficiently removed, performance of pump decreases early on.

b) Heat waste oil in waste oil tank to 90 to 100 °C.

c) During and after heating waste oil tank, thoroughly discharge drain in tank.

d) If stack has damper installed inside, set damper in full open position.

e) Open main valve for M.D.O. (*) and check valve connected to waste oil line.

f) Open main valve for atomizing air.

g) Make sure pressure gauge valve is open.

h) Check for fuel leakage from fuel piping and joints (flanges).

39
 1.4 Air Vent from Solenoid Pump (*)

WARNING
To ensure safety, do not vent air during incineration.
Prohibition

Make sure to complete air vent during pre-purge (*) (within 30 seconds of pressing
Incineration start switch). Upon completion of pre-purge, ignition starts.

Waste oil leaked out of system may ignite to cause fire, resulting in accident involving death.
Instruction Check connections of piping and air valve for leaks. Dispose of fuel oil leakage and waste
cloth used to wipe off oil immediately in an appropriate manner.

CAUTION
Waste oil spill occur, it may have adverse influence on marine ecosystem. Take measures to
prevent fuel oil spill and establish methods for coping with spillage in advance.
Instruction

Note
Do not turn air vent valve of solenoid pump one full rotation or more. Oil may spout out.

a) Open main valve for D.O(*).

b) Vent air through screws in D.O. (*) strainer.

c) Place in container the end of vinyl tube that is attached to air vent valve of D.O. (*) piping.

d) Set cooling fan running switch to ON to start cooling fan.

e) Press incineration start switch.

f) Loosen air vent valve.

• Do not turn it one full rotation or more.

g) Make sure that air has completely escaped and only oil is coming out.

Note
If some air is still left, press the incineration stop switch and repeat steps d) through h).

h) Close air vent valve.

i) Press incineration stop switch.

40
2.Operation

WARNING
Do not operate breaker of main power supply and equipment in control panel with wet hands.
Failure to observe this instruction may cause electrical shock due to high voltage, resulting in
Do Not Touch with injury or death.
Wet Hands

Waste oil leaked out of system may ignite to cause fire, resulting in accident involving death.
Check connections of piping and air valve for leaks. Dispose of fuel oil leakage and waste
Instruction
cloth used to wipe off oil immediately in an appropriate manner.

Fuel piping is hot; touching it may cause burning. Use caution not to directly touch the fuel
piping.
Caution:
Hot

Note
Make operation plan that allows incinerator to cool down after incineration until the next day, and
ashes to be raked before the next cycle of incineration. Make operation plan similar to basic
operation cycle in order to completely incinerate all solid waste and waste oil generated on vessel
as well as to safely use equipment.

2.1 Operation
2.1.1 Operation of Waste Oil Incineration

WARNING
Cooling fan must be continuously on between incineration and cooling operations. It is
turned off at such time, workers could get burned or the equipment could be damaged.

For proper incineration, you must adjust the flow to match the conditions of waste oil.
Incinerator is adjusted so that the flow control valve (ball valve) is completely open when
waste oil is burned. However, when the heating value of waste oil is high, the cock should be
Instruction adjusted accordingly. This is because over-input could cause damage inside the incinerator.
(Adjust the temperature inside incinerator to 900 and 1000°C.)
(Use waste oil pressure gauge to record indicated value of primary pressure and secondary
pressure.)

CAUTION
When preheating furnace using D.O. (*), pull down lever on three way valve located at top of
waste oil pump to prevent D.O. (*) from flowing into waste oil tank. Also, do not pass the
Instruction steam tracing of waste oil line. It may damage equipment in waste oil line.

41
Note
When combustibility of waste oil is low, switch incineration changeover switch to W.O. with pilot.
If it is switched to waste oil incineration, auxiliary burner continues to provide auxiliary incineration.

a) Perform pre-operation inspection and preparation.

P36 "Chapter 3. 1. Inspection and Preparation before operation"

b) Check that power lamp is lit.

c) Set cooling fan running switch to ON.

• Cooling fan start and cooling fan running lamp lights up.

d) Set incineration changeover switch to W.O. only.

e) Press incineration start switch.

• Incineration lamp blink and indicate incineration operation is on.
• After pre-purge (*), perform ignition; once ignited, incineration lamp lights up.

(*).
f) Before incinerating waste oil, preheat furnace by running waste oil burner on D.O for 10 to 15
minutes.

g) Make sure that waste oil tank is sufficiently heated (90 to 100C), open outlet valve of waste oil
tank.

h) Close check valve connected to waste oil line.

i) Turn handle on three way valve located at the top of waste oil pump to be horizontal to flow to
return any excess oil into waste oil tank.
• If there is valve on tank side, open it.

j) Adjust flow control valve (ball valve) located at burner inlet according to incineration conditions.

42
 2.1.2 Operation of Solid Waste Incineration

DANGER
Ignition using matchsticks and lighter is prohibited.

Do not use Incinerator without safety devices.

Cooing operation (*) continues for 4 hours after burning is stopped. Do not open door until
cooling operation is finished.
Do not stand just in front of opening side when door is open, in case of backfire (*).

Prohibition
When solid waste is burned, use the equipped burner on incinerator only.

When solid waste is burned, do not put next solid into incinerator four 4 hours until
incineration is finished.

Solid waste should be MEPC76 (40) provided element and determined amount.

Before opening door, look through sight window to make sure that there is no residual flame
(*) or smoke inside furnace.

Instruction

WARNING
Use caution to avoid burning when removing ashes.
Hot residue may be contained even after four hours of cooling operation (*).
Instruction It may cause fire or backfire (*).

43
 CAUTION
Do not incinerate wastes containing harmful ingredients.
MARPOL prohibits incineration of following materials:
(1) Residual including cargo as follow and container material that is contaminated
with one of them.:
(a)Oil
(b)Harmful liquid materials
(c)Marine contamination substances
Prohibition (2) Polychlorinated biphenyl (PCBs)
(3) Lead, cadmium or compound of these substance
(4) Refined products containing halogen compounds
(5) Drainage, mud and sludge oil that are not come out vessels.
(6) Residual of exhaust gas purification facilities.
Do not incinerate solid waste beyond capacity as below. Such waste might not burn
properly, and might damage incinerator.
MEPC76 (40) provides the maximum weight of a solid waste load.

Percent BGW-20N,30N,50N BGW-80N,100N

Type of solid of total
waste
waste Specified weight (kg)
%
Food waste 50 10 20
Paper 15 3 6
Cardboard 20 4 8
Cloth 5 1 2
Plastic 10 2 4
Make-up of
20 40
mixed waste

If the proportion of solid wastes is different from that above, please divide up the waste into
Instruction units and incinerate at different times.
Please note, however, that maximum weight depends on condition and type of solid waste.
If waste of only one kind is being incinerated, please do not incinerate more than the
maximum amount listed below.

BGW-20N,30N,50N BGW-80N,100N
Types of loaded waste
Specified weight (kg)
Paper, cardboard only 17 35
Plastic only 3 10
Solid sludge (*) only 8 15

Plastics, cloths soaked with oil (include edible oil), and other wastes of high heating value
should be placed on flat furnace bottom (*). When incinerating wastes contained oil (include
edible oil), do not throw mixing with plastic and make sure that amount of wastes is or less
than amount of plastic. Failure to do so may cause failure of equipment.
44
 CAUTION
By all means, load solid waste through the charger door. If you load it through the ash
removal door, you could cause incomplete incineration and / or damage the equipment.
Even if only a small amount of waste is being incinerated at on time, it still takes at least
ONE HOUR for incineration.
Instruction
When incinerating solid waste, please set the “Incineration changeover” switch to “SOLID
WASTE.” Otherwise, you could cause a breakdown in the equipment.

Note
When incinerating small pieces of waste that would fall through grate (*), wrap them with cardboard
sheet or put them in old box, and incinerate entire package.
As for waste paint and fluid waste, put them in metal can and place it on stack side of flat furnace
(*).

Waste that contains s lot of water (food scraps, cloths, etc.) can be incinerated in a shorter time by
setting it on the grate.

Note
Fully close charging door and ash removal door, and turn handle all the way to where it stops to
lock it. Otherwise incineration will not start.

a) Perform pre-operation inspection and preparation.

P36 "Chapter 3. 1. Inspection and Preparation before operation"

b) Check that power lamp is lit.

c) Open charging door and charge solid waste.

d) Close charging door.

e) Set incineration changeover switch to solid waste.

f) From here, perform same procedure as in "Chapter 3. 2.1.1 Operation of Waste Oil Incineration.
" steps e)~j)
P41 "Chapter 3. 2.1.1 Operation of Waste Oil Incineration. "

45
 2.2 Monitoring
Check following during operation to make sure that there are no abnormal conditions.

WARNING
If you detect abnormal noise, odd smell, smoke, heating of incinerator itself, and other
abnormal conditions during operation, immediately push combustion stop switch and close
waste oil and D.O. (*)valves. If you do not do this, fire or backfire (*) could occur.
If you detect malfunctions, abnormalities, contact with MIURA offices. Do not use incinerator
Instruction until problems have been resulted. Operating equipment when there is a malfunction could
result in fire or explosion of equipment.

a) Check stack.
• Make sure that there is no black or white smoke coming out from stack.

b) Check for abnormal noise.

• Make sure that incinerator is in operation.
• Make sure that operation noise of fan, waste oil pump, and solenoid pump (*) is normal.
• Make sure that incinerator is not vibrating to abnormal degree.
Note
If abnormal condition is observed, stop operation immediately and contact with MIURA offices.
Abnormal incineration noise and operating noise during operation result in breakage of
components.

c) Check equipment.
• Make sure that equipment is not showing abnormal value, such as pointers of air pressure
gauge and oil pressure gauge swinging to extreme degree.

d) Check fuel piping.

• Check for fuel leakage from fuel piping and joints (flanges).

e) Check for abnormal smell.

• Make sure that there is no abnormal smell. If abnormal condition is observed, stop operation
immediately and contact with MIURA offices.

f) Check surrounding environment.

• Check surroundings of incinerator while incinerator is in operation as well.
P36 "Chapter 3. 1.1 Inspection and Preparation of Incinerator and Peripheral Equipment"

46
3．Stop
3.1 Normal Stop

WARNING
Do not open charging door or ash removal door until furnace is sufficiently cooled down.
Even after cooling timer stops in four hours, doors remain locked until temperature in
furnace comes down to 220°C; however, let it cool down to 100°C so as to prevent risk of
Prohibition fire or burning.
Do not operate breaker of main power supply and equipment in control panel with wet
hands.
Failure to observe this instruction may cause electrical shock due to high voltage, resulting
No Wet
Hand in injury or death.
Do not turn off circuit breaker for main power. It would stop cooling fan, interrupting cooling
operation (*).
Stopping cooling fan before sufficient cooling is achieved may cause damage to furnace.
Turning on circuit breaker for main power after turning it off during the cooling operation
Instruction reactivates cooling timer (four hours), and the cooling operation continues for time remained
on timer.
Doors are locked while cooling timer is active.

Fuel piping is hot; touching it may cause burning. Use caution not to directly touch fuel
piping.
Caution:
Hot

CAUTION
When stopping this equipment, replace oil in waste oil piping inside equipment with D.O. (*)
Failure to do so may lead to breakage of gauges and waste oil pump. Make sure to continue
incineration with D.O. (*) for 10 to 20 minutes. Insufficient replacement causes failure of
Instruction equipment.

Note
When replacing waste oil with D.O. (*), adjust incineration conditions by gradually closing down flow
control valve.
Note
Right after incineration stops, oil in fuel piping expands due to heat loss from incinerator; close
main valve after oil is sufficiently cooled down. Failure to do so may lead to breakage of
equipment.

47
 a) Open check valve connected to waste oil line.

b) Close main valve of waste oil tank.

c) Continue incineration with these settings. Once waste oil in piping is replaced with D.O. (*), pull
down lever on three way valve located at the top of waste oil pump to prevent D.O. (*) from
flowing back into return piping.

d) Continue incineration for another 10 to 20 minutes to replace waste oil in main unit piping with
D.O. (*)

e) Press incineration stop switch.

• Burner incineration stops and incineration lamp turns off.

f) Set cooling fan running switch to OFF.

• Cooling fan stops automatically in four hours after cooling operation (*).
• When it stops, door does not open.

g) Close main valves for waste oil, D.O. (*), and atomizing air.

h) Make sure that cooling operation is finished.

•Cooling operation is finished when fan stops.
• When it stops, door opens.

3.2 Recovering from Abnormal Stop

WARINING
If abnormal stop of incinerator occurs, follow procedure for solving cause of alarm.
Improper operation may result in personal injury.
Caution

If incinerator itself judges it unsafe to continue operation, it stops running and notifies abnormal
condition with alarm and display.

a) Press bell stop switch.

• Bell stops but interlock condition is maintained.

b) Follow required actions before requesting repair, and solve cause of alarm occurrence.
• Returning to incineration without solving the cause will result in error again.
P82 "Chapter 5.1. Required Actions before Requesting Repair"

48
 c) Press alarm reset switch.
• Alarm lamp turns off, and alarm display is reset.
• Press Alarm reset switch without pressing Bell stop switch, not reset operation.

d) Start incinerator.
• If same alarm recurs, there may be another cause; stop operation and contact with MIURA
offices.
P41 "Chapter 3. 2 Operation"

3.3 Emergency Stop

WARNING
Emergency stop is operation that primary purpose is to shut down equipment immediately in
case of emergency. Safety check steps are omitted in this operation, that may lead to
unexpected accidents or failure. Perform emergency stop only in case of emergency that
Caution
there is no other option. Also note that judgment on whether or not to perform emergency
stop depends on situation, so user should decide based on situation of operation site.

If abnormal operating sound or fuel leakage is detected, perform following procedure to stop
operation.
a) Press emergency stop switch.

b) Close fuel main valve.

c) Perform trouble shooting.

P82 "Chapter 5. 1. Required Actions before Requesting Repair"

d) Perform operation follow operate procedure.

e) If trouble shooting does not solve problem, contact with MIURA offices.

49
CHAPTER 4: INSPECTION AND MAINTENANCE

1. List of Inspection Items and Inspection Frequencies

WARNING
Do not perform operations other than ones instructed. Performing such operations may
result in personal injury.
Prohibition

Note
When performing inspection, put maintenance tag on incinerator to indicate that inspection and
maintenance are in progress.

In order to prevent troubles and to keep this equipment safe for a long time, carry out inspection and
cleaning that is listed in following regularly. (Items should be inspected, depends on system; contact
with MIURA offices.)
Listed shows standard inspection frequencies. Consider it as guide, since frequencies of inspection
and cleaning change according to working conditions (such as extremely poor quality of waste oil).
Carry out Inspection with appropriate frequency on your own responsibility.

Table 4-1 Regular inspection and maintenance

Timing of Inspection/Cleaning
Inspection/maintenance item Page Every Every 4 When
Every day
week Months Docked
Raking ashes/cleaning and inspection
36 ●
of furnace
Atomize air (*)/oil pressure check 62 ●
Cleaning and inspection of burner fan inlet 71 ●
Cleaning and inspection of cooling fan inlet 71 ●
Cleaning of waste oil strainer 72 ●*1
Cleaning of waste oil burner 66 ●
Operation check of safety system 52 ●
Cleaning of flame eye (*) 63 ●
Cleaning of auxiliary burner 64 ●
Cleaning of D.O. (*)strainer
70 ●
Cleaning of waste oil tank 72 ●
Cleaning of funnel 36 ●
*1: Clean waste oil strainer every time incinerator is operated.

50
 Note
On incinerator designed for shipboard power supply of 60 Hz is operated on shore power, when
ship is docked in 50 Hz area, performance of various motors designed for 60 Hz is reduced,
causing problems such as insufficient volume of incineration air and fuel flow rate. On the contrary,
operating incinerator designed for 50 Hz on shore power in 60 Hz area causes motor to burn out
and trip. Be sure to use shipboard power supply to operate incinerator.

2. Daily Inspection and Maintenance

Peripheral equipment is different depending on system. To ensure proper usage, follow operation
manuals for each piece of equipment to use.
Always keep operation manuals handy for future reference along with operation manual for incinerator.
For pre-operation inspection of peripheral equipment around incinerator and monitoring of abnormal
conditions during operation, refer to "Chapter 3. 1. Inspection and Preparation before operation" and
"Chapter 3. 2.2 Monitoring," and follow the provided instructions.
P36 "Chapter 3. 1. Inspection and Preparation before Operation "
P46 "Chapter 3. 2.2 Monitoring"

51
3. Inspection and Maintenance
3.1 Checking Operation of Safety System
Note
For information on display on control panel, see "Chapter 2. 2.7 Details of Control Panel."
P27 "Chapter 2. 2.3 Details of Control Panel"

3.1.1 Flame Detector

<Operation of false flame>
• Safety system that prevents shifting to incineration operation when there is residual fire (*)

prior to incineration.
(Test method) a) Pull out flame eye (*) and expose receiving surface to light.
b) After starting cooling fan, press incineration start switch to start incineration.
(Normal
• Interlock (*) is activated in 3.5 seconds from start of pre-purge (*).
operation)
• Solenoid pump (*) stops.
• Burner fan and cooling fan continue running.

<Miss fire>
• Safety system that shuts down solenoid valve and activates alarm when no flame is detected
during ignition period after ignition transformer (*) and auxiliary burner solenoid valve are
activated.
(Test method) a) Pull out flame eye (*) and cover receiving surface.
b) After starting cooling fan, press incineration start switch to start incineration.
(Normal
• Interlock (*) is activated in 3.5 seconds from end of pre-purge (*).
operation)
• Solenoid pump and ignition transformer stop; solenoid valve is closed.
• Burner fan and cooling fan continue running.

<Flame failure>
• Safety system that cuts off fuel and activates alarm when flame is lost during incineration.
(Test method) a) Set waste oil burner to stable incineration.
b) Pull out flame eye and cover receiving surface during incineration.
(Normal
• Interlock (*) is activated after flame is judged lost.
operation)
• Waste oil pump stops, and solenoid valve is closed.
• Burner fan and cooling fan continue running.

52
3.1.2 Safety Devices
<Exhaust gas high temperature alarm>
・Safety system that stops incineration when exhaust gas temperature of stack reaches setting
temperature.
(Test method) a) Set waste oil burner to stable incineration.
Gradually lower setting temperature of thermostat of stack to activate
b)
exhaust gas high temperature alarm.
c) After test, return setting temperature back to 320°C.
(Normal ・ Interlock(*) is activated.
operation)
・ Waste oil pump stops, and solenoid valve is
Closed.
・ Burner fan and cooling fan continue running.

Thermostat dial
Figure 4-1 Thermostat
<Furnace temperature high>
・Safety system that stops incineration when temperature in furnace reaches setting temperature.
a) Set furnace high temperature alarm test switch in control panel to ON.
(Setting temperature reach to 600°C.）
(Test method)
・ After CHE1 and operation setting value 600 display alternately on
control panel for 6 seconds, furnace temperature is displayed.
b) Set waste oil burner to stable incineration to heat up furnace to at least
600°C.
(Normal ・ Interlock(*) is activated in about three seconds after furnace temperature
operation) reaches 600°C.
・ Waste oil pump stops, and solenoid valve is closed.
・ Burner fan and cooling fan continue running.
(Return c) Set furnace high temperature alarm test switch in control panel to OFF.
method) (Setting temperature back to 600°C）
・After nor1 and operation setting value 1100 display alternately on
control panel for 6 seconds, furnace temperature is displayed.
For layout of control panel, see "Chapter 2. 2.7 Details of Control Panel."
P27 "Chapter 2. 2.3 Details of Control Panel"

53
<Furnace pressure high>
・Safety system that stops incineration when pressure in incineration chamber increases.
(Test method) a) Set waste oil burner to stable incineration.
b) While incineration is in progress, disconnect detector tube that is connected
to pressure switch and apply air pressure.
(Normal ・ Interlock(*) is activated in about five
operation) seconds.
・ Waste oil pump stops, and solenoid
valve is closed.
・ Burner fan and cooling fan continue
running.

Detector tube
Figure 4-2 Detector

54
 <Auxiliary burner oil pressure low>

CAUTION
Range and differential of pressure switch are set to appropriate values at time of shipment.
Do not change settings unless there is problem with alarm occurrence.
Prohibition

・ Safety system that stops incineration when fuel supply pressure for auxiliary burner drops.
(Test method) a) While auxiliary burner is in operation, by loosening adjusting bolt of
solenoid pump(*) and lower discharge pressure to 0.5 MPa to activate
pressure switch.
b) Make sure that incineration is shut down.
(Normal
・ Interlock (*) is activated in about two seconds.
operation)
・ Waste oil pump and solenoid pump stop, and solenoid valve is closed.
・ Burner fan and cooling fan continue running.
(Return c) Perform incineration with adjusting bolt of solenoid pump tighten a little, and
method) adjust pressure to 0.8 MPa.

Pressure differential Pressure

adjusting screw adjusting screw

Pressure pointer
Pressure differential pointer
Scale

Lock nut
Contact lever
Operating position
Adjusting bolt adjusting screw

Figure 4-3 Solenoid pump Figure 4-4 Pressure switch (SNS type)

(Adjusting a) Adjusting range

method) Turn pressure adjusting screw counterclockwise (compressing screw);
contact pressure increases as indicated. As contact pressure increases,
naturally cutting pressure also increases. Set it to 0.7 MPa.
(With differential, it is alarm setting of 0.5 MPa.)
b) Adjusting differential
Turn pressure differential adjusting screw counterclockwise to set
differential of pressure switch for this alarm to 0.2 MPa.
(Turning screw too much make it unfasten.)

55
<Waste oil pressure low>
• Safety system that stops incineration when waste oil fuel supply pressure drops.
(Test method) a) Set waste oil burner to stable incineration.
b) Intentionally reduce pressure by pushing down contact lever of waste oil
pressure switch with screw driver or closing root valve and remove oil from
test cock.
(Normal
• Interlock (*) is activated in about two seconds.
operation)
• Waste oil pump stops, and solenoid valve is closed.
• Burner fan and cooling fan continue running.

<Atomize air(*) pressure low>

• Safety system that stops incineration when atomize air supply pressure drops.
(Test method) a) Set waste oil burner to stable incineration.
b) Use air regulator to lower pressure down to 40 kPa to activate pressure
switch.
(Normal
• Interlock(*) is activated in about two seconds.
operation)
• Waste oil pump stops, and solenoid valve is closed.
Burner fan and cooling fan continue running.
•

Adjusting knob

Pull down to release lock.

Figure 4-5 Air regulator

56
<Activation of thermal relay>
• Protective system that shuts power supply to electric motor and stops incineration in case of
overcurrent.
(Test method) a) Set waste oil burner to stable incineration.
b) Activate each thermal relay intentionally during incineration.
(Normal
• Power supply to electric motor is shut down, and electric motor stops.
operation)
• When thermal relay for burner fan or cooling fan is activated, corresponding
anomaly alarm goes off, and interlock(*) is activated.

Reset switch

Trip switch

Press it intentionally.

Figure 4-6 Thermal relay

<Prohibition of incineration with open door>

• Safety system that prevents incineration from starting and stops incineration when door is
open.
(Test method I) Press incineration start switch with door left open.
(Normal
• Incineration does not start.
operation)
• Burner fan does not start. Incineration lamp does not light up.

Note
Check operation of both "ash removal door" and "charging door."

3.1.3 Power Supply Shutdown Test

Turn off circuit breaker of main power during incineration to make sure that each equipment and
incinerator stop safely.
Make sure that BCU abnormal alarm operate when main power is recovered.

57
3.1.4 Waste Oil Temperature High
Safety system that illuminate abnormal lamp and operate alarm when waste oil temperature rise
during incineration.
(Test method) a) Set waste oil burner to stable incineration.
b) Turn ON waste oil temperature high alarm test switch in control panel.
CHE2 and 0 are displayed alternately, with setting value set at 0°C.
(Normal ・ Lightning of waste oil abnormal lamp and alarm occurrence continue until
operation) Bell stop is pressed.
・ Interlock(*) is not activated.
・ Incineration is continued.
(Return
a) Press Bell stop switch.
method)
b) Turn OFF temperature high alarm test switch in control panel.
Afternor2 and operation setting value120 are displayed alternately for 6
seconds on control panel, it display furnace temperature.
c) Press alarm reset switch and make sure that alarm lamp is gone out..

3.1.5 Waste Oil Temperature Drop

Safety system that illuminate abnormal lamp and operate alarm when waste oil temperature drop
during incineration.
(Test method) a） Set waste oil burner to stable incineration.
b） Turn ON waste oil temperature low alarm test switch in control panel.
CHE3 and 0 are displayed alternately, with setting value set at 0°C.
c） After CHE4 and 300 are displayed alternately, with setting value set at
300°C.
(Normal ・ Lightning of waste oil abnormal lamp and alarm occurrence continues until
operation) Bell stop is pressed.
・ Interlock(*) is not activated.
・ Incineration is continued.

(Return
a） Press Bell stop switch.
method)
b） Turn OFF temperature low alarm test switch in control panel.
After nor3 and operation setting value 90 are displayed alternately for 6
seconds on control panel, it display furnace temperature.
c） Press alarm reset switch and make sure that alarm lamp is gone out.

58
3.1.6 Furnace Temperature Drop
Safety system that stop incineration when furnace temperature drop during incineration.
(Test method) a） Set waste oil burner to stable incineration.
b） Turn ON Furnace temperature drop alarm test switch in control panel.
CHE5 and 0 are displayed alternately, with setting value set at 0°C.
c） After a while, CHE6 and 1200 are displayed alternately, with setting value
set at 1200°C.
(Normal
・ Alarm is occurred and combustion stop.
operation)
・ Waste oil pump stop, and solenoid valve is closed.
・ Burner fan and cooling fan continue running.
(Return
a） Press Bell stop switch.
method)
・ When this time, alarm can’t reset.
b） Turn OFF Furnace low temperature test switch in control panel.（Setting
value return back to 800°C.）
After nor 4 and operation setting value800 are displayed alternately for 6
seconds on control panel, it display furnace temperature.
c） Press alarm reset switch and make sure that alarm lamp is gone out.

3.1.7 Burner Fan Air Pressure Drop (Option)

Safety system that stop incineration when static pressure of burner fan outlet reach less than
setting pressure.
(Test method) a） Set waste oil burner to stable incineration.
b） Disconnect tube that is connected to burner fan outlet and apply air
pressure.
(Normal
・ Interlock(*) is activated in one second after burner fan abnormal alarm occur.
operation)
・ Waste oil pump stop, and solenoid valve is closed.
・ Burner fan and cooling fan continue running.

59
Table 4-2 List of safety system
Alarm Standard
Fuel Oil
NO. Item Setting Remarks
Shutdown Audible Visible
Value
1 Misfire and flame failure 〇 〇 〇
2 Burner fan malfunction 〇 〇 〇
3 Cooling fan malfunction 〇 〇 〇
4 High furnace temperature 〇 〇 〇 1100°C
5 Furnace pressure increase 〇 〇 〇 －0.1kPa
6 Waste oil pressure drop ○ ○ 〇 0.1MPa
High exhaust gas
7 〇 〇 〇 320°C
temperature
Auxiliary burner oil pressure
8 〇 〇 〇 0.5MPa
drop
9 Atomize air(*) pressure drop 〇 〇 〇 40kPa
10 BCU(*) malfunction 〇 〇 〇
11 Lost power supply 〇 × ×
12 Operation with open door 〇 × ×
13 Low furnace temperature 〇 〇 〇 800°C
Waste oil temperature
14 × 〇 〇 120°C
increase
15 Waste oil temperature drop × 〇 〇 90°C
16 Burner fan air pressure drop ○ ○ ○ 0.1kPa Option

60
3.2 Atomize Air (*)/Oil Pressure Check

WARNING
If abnormal pressure is observed, stop operation immediately and contact with MIURA
offices. Continuing operation with abnormal pressure may cause damage to incinerator and
Instruction result in personal injury.

Note
Be sure to perform atomize air (*) and oil pressure check during incineration (while incineration
lamp is lit). Pressure cannot be accurately checked when incinerator is stopped.

a) Check for any fuel oil leakage from joints of pressure gauge.

b) Follow operation procedure to set this equipment to start incineration.

P36 "Chapter 3. Operation"

c) Check that atomize air and each of oil pressure gauges are indicating standard setting values.
Standard values for atomize air and oil pressure are listed in following Table 4-3; if there are
records of commissioning test available, refer to values in commissioning test report.

Table 4-3 Standard setting values for atomize air/oil pressure (operation pressure)
Atomize air 0.08 MPa
Waste oil pressure,
0.2 to 0.4 MPa
primary side
Waste oil pressure,
0.05 MPa
secondary side
D.O.(*) 0.8 MPa

Note
For position of each pressure gauge, see "Chapter 2. 2.5 Details of around burner"
BGW-20N.30N,50N P23"Chapter 2. 2.4 Details of Around Burner (BGW-20N.30N,50N)"
BGW- 80N,100N P24"Chapter 2. 2.5 Details of around burner (BGW- 80N,100N)"

d) If there are problems with values, follow pressure adjustment steps to adjust pressure.
P62 "Chapter 4. 3.3 Pressure Adjustment"

61
3.3 Pressure Adjustment
3.3.1 Adjusting Atomize Air(*) Pressure
Note
The higher atomize air pressure, the better combustibility tends to be. When properties of
waste oil are poor, atomize air pressure can be adjusted up to 0.12 MPa.

a) Pull down adjustment handle of atomize air pressure reducing valve

when it show red indication to make it ready for adjustment.

b) Follow operation procedure to start waste oil burner.

P36 "Chapter 3. Operation"

c) Turn adjustment handle of pressure reducing valve

Adjustment
to adjust pressure. handle

Figure 4-7 Atomize air pressure

d) After adjustment is made, push up handle to lock it. reducing valve

3.3.2 Adjusting Waste Oil Pressure

This equipment is adjusted at factory and at the time of installation inspection to achieve proper
incineration flow rate; do not change waste oil secondary pressure from standard setting value.
Regular changeover between D.O.(*) and waste oil can be done with flow control valve.
(Tightly closing waste oil pressure reducing valve on waste oil piping causes secondary pressure
to rise and increases waste oil flow rate. Loosening, on the other hand, reduces flow rate.)

3.3.3 Adjusting D.O. (*) Pressure

Solenoid pump(*) is adjusted at optimal position (pressure)
for incineration. Do not change settings from standard setting value.

Lock nut

Adjusting
bolt

Figure 4-8 Solenoid pump

62
3.4 Cleaning Receiving Surface of Flame Eye(*)

WARNING
Shut off main power before cleaning.
Do not operate equipment with wet hand. Electric shock due to high voltage may cause
Do Not Touch
with Wet Hands injury or death.

CAUTION
Various parts of incinerator hold high heat right after incineration is stopped. Working
without letting various parts to sufficiently cool down may result in burning from coming in
Caution:
Hot contact with high temperature parts.

a) Have following tools ready that are necessary for disassembly and maintenance.
• Soft cloth, screw driver, etc.
b) Make sure that main power of incinerator is turned off.
c) Remove flame eye cover.
d) Pull out flame eye.
e) Use soft piece of cloth to thoroughly wipe off any soot on tip of flame eye.
f) Return flame eye to original position and attach flame eye cover.

Note
• When returning flame eye, insert it into set position.

Nozzle pipe

Flame eye cover

Flame eye

Insulator cap

Figure 4-9 Overview of flame eye

part
63
3.5 Cleaning Auxiliary Burner

WARNING
Shut off main power before cleaning.
Do not operate equipment with wet hand. Electric shock due to high voltage may cause
Do Not Touch
with Wet Hands injury or death.

Close main fuel valve to depressurize piping.

Splashing of fuel may cause fire.

Replace any defective or damaged parts. Use of equipment with defective or damaged parts
may cause fuel leakage, leading to fire or explosion of equipment.
Instruction

Securely tighten steel pipe connectors. Failure to do so may cause fuel leakage, leading to
fire or explosion of equipment.

CAUTION
Various parts of incinerator hold high heat right after incineration is stopped. Working without
letting various parts to sufficiently cool down may result in burning from coming in contact
Caution:
Hot with high temperature parts.

Note
Decide how frequently to clean burner based on usage.
Note
Clean fuel spout on the tip of nozzle tip carefully so as not to clog it with soot or dirt.

P33 "Chapter 2. 2.11 Disassembled View of Auxiliary Burner"

a) Have following tools ready that are necessary for cleaning.

• Cloth, two spanners, wire brush, nozzle tip turner, screw driver, hexagon wrench, washing oil,
etc.

b) Stop incinerator and close fuel main valve.

c) Turn off main power of incinerator.

d) Remove set screws of burner cover plate and steel pipe connectors.
Residual fuel in fuel piping comes out; catch it with cloth.
Use two spanners and work carefully not to damage fuel piping.

64
e) Remove plug cap on ignition rod, and pull out flame eye(*).

f) Remove main unit of auxiliary burner.

• Residual fuel comes out from the tip of burner; catch it with cloth.

g) Use wire brush to remove soot on baffle plate.

• Make sure that baffle plate is not cracked or deformed.
• If it is, part needs to be replaced; contact with MIURA offices.

h) Remove screws fixing ignition rod, and remove ignition rod.

i) Use nozzle tip turner to detach nozzle tip.

j) Remove soot on nozzle tip with a cloth, etc.

k) Make sure that there are no scratches on working faces of nozzle tip and burner.

l) Assemble burner in the opposite procedure of disassembling.

• Be careful not to over tighten ignition rod, for it may break rod.

m) Make sure that steel pipe connectors are fully tightened.

• After check, tape them with splash prevention tape.

n) Follow the steps in "Chapter 3. 1.Inspection and Preparation before operation, 1.4 Air Vent from
Solenoid Pump(*)" to vent air from solenoid pump.
P40 "Chapter 3. 1.4 Air Vent from Solenoid Pump(*)"

65
3.6 Cleaning Waste Oil Burner

WARNING
Shut off main power before cleaning.
Do not operate equipment with wet hand. Electric shock due to high voltage may cause
Do Not Touch
with Wet Hands injury or death.

Close main fuel valve to depressurize piping.

Splashing of fuel may cause fire.

Replace any defective or damaged parts. Use of equipment with defective or damaged parts
may cause fuel leakage, leading to fire or explosion of equipment.
Instruction

Securely tighten steel pipe connectors. Failure to do so may cause fuel leakage, leading to
fire or explosion of equipment.

CAUTION
Various parts of incinerator hold high heat right after incineration is stopped. Working without
letting various parts to sufficiently cool down may result in burning from coming in contact
Caution:
Hot with hot parts.

Note
Decide how frequently to clean burner based on usage and fuel conditions.

Note
Clean fuel and air spout on the tip of burner carefully so as not to clog it with soot or dirt.

Note
• Properly assemble burner by checking its dimension and evenly tightening the hexagon bolts
on main unit of burner.
• Improper assembly of burner may result in poor incineration, misfire, and explosion due to poor
atomizing.
• To fix nozzle pipe, set it in position where it is pressed on nozzle case side, and evenly tighten
screws in three places.
• Once assembly is completed, make sure that it is assembled properly to dimension of each
part.
P34 "Chapter 2. 2.12 Disassembled View of Waste Oil Burner"

66
a) Have following tools ready that are necessary for cleaning.
• Cloth, two spanners, wire brush, hexagon wrench, etc.

b) Stop incinerator and close fuel main valve.

c) Turn off main power of incinerator.

d) Remove set screws of burner cover plate, cooper pipes, and steel pipe connectors.
• Residual fuel in fuel piping comes out; catch it with cloth.
• Use two spanners and work carefully not to damage fuel piping.

e) Remove main unit of waste oil burner.

• Residual fuel comes out from tip of burner; catch it with cloth.

f) Loosen set screws on shroud and remove it.

g) Secure casing in vice, etc., and remove nozzle case.

h) Remove piping at waste oil inlet, loosen three set screws of nozzle pipe, and detach nozzle pipe
by pulling it towards burner tip.

i) Check inside of nozzle to make sure that it is not clogged.

j) Make sure that orifice and ball valve are not clogged.

k) Use wire brush to remove soot on burner and shroud.

l) Use wire brush to remove soot on baffle plate.

• Make sure that baffle plate is not cracked or deformed.
• If it is, part needs to be replaced; contact with MIURA offices.

m) Assemble burner in opposite procedure of disassembling.

n) Make sure that steel pipe connectors are fully tightened.

• After check, tape them with splash prevention tape.

67
 Figure 4-10 External view of waste oil burner (20N, 30N, 50N)

Figure 4-11 External view of waste oil burner (80N, 100N)

Table 4-4 Dimensions of waste oil burner

68
3.7 Inspecting Furnace Castable

CAUTION
Various parts of incinerator hold high heat right after incineration is stopped. Working without
letting various parts to sufficiently cool down may result in burning from coming in contact
Caution:
Hot with high temperature parts.

a) Have following tools ready that are necessary for inspection.

• Flashlight, scale, etc.

b) Make sure that incinerator is stopped and main fuel valve is closed.

c) Make sure that main power of incinerator is OFF.

d) Open charging door and ash removal door.

e) Check inside furnace through charging door and ash removal door.

Note
Because castable inside furnace normally repeats heating and cooling, it inevitably suffers from
degradation such as cracks. Since castable has thickness of 100 mm and is fixed with anchors,
there is no immediate problem in operating equipment; however, it is necessary to always pay
attention to conditions of castable. If there is risk of falling, perform repair.

<Sign of when to repair>

• Multiple cracks running irregularly and crossing each other have separated a part of furnace
wall as block, that is about to fall off.

Cracks

Part separated as block

Figure 4-12 Example of castable exterior

69
3.8 Cleaning D.O.(*) Strainer
a) Have following tools ready that are necessary for disassembly and maintenance.
• Receptacle for oil such as bucket, wrench, brush, teflon tape, cloth, etc.

b) Stop incinerator and close fuel main valve.

c) Turn off circuit breaker for main power.

d) Place oil receptacle under oil strainer to prevent fuel spillage, and turn D.O.(*) strainer to remove
it.

e) Remove impurities in D.O(*) strainer.

f) Attach D.O(*) strainer back on.

g) Vent air from solenoid pump(*).

P40 "Chapter 3. 1.4 Air Vent from Solenoid Pump (*)"

Turn lower part to clean.

Figure 4-13 D.O(*) strainer

70
3.9 Inspection and Cleaning of Burner Fan Inlet
a) Turn off main power of incinerator.

b) Make sure that fan is stopped.

c) Use wire brush or cloth to remove any dirt and dust on

inlet

Note Inlet
Figure 4-14
Operating equipment without removing dirt or dust
External view of burner fan inlet
may result in poor combustion due to insufficient air.

3.10 Inspection and Cleaning of Cooling Fan Inlet

a) Turn off main power of incinerator.

b) Make sure that fan is stopped. Inlet Inspection hole

c) Remove inspection hole cover.

d) Use wire brush or cloth to remove any dirt and dust on

inlet

Figure 4-15
External view of cooling fan inlet

Note
Operating equipment without removing dirt or dust may result reduced ejector performance
due to insufficient air.

71
3.11 Cleaning Waste Oil Strainer

a) Make sure that main valve of waste oil line is closed.

b) Turn off main power of incinerator.

c) Make sure that waste oil piping is sufficiently

cooled down to 45C or below.

d) Disassemble strainer cover and clean it.

e) Assemble strainer.

Figure 4-16
Reference image of waste oil strainer
Note
* Figure 4-16 is MIURA standard waste oil strainer.
Since waste oil strainer is separately provided accessory,
it may be different model from one shown above

3.12 Cleaning Waste Oil Tank（When docked）

a) Make sure that main valve of waste oil tank is closed.

b) Make sure that waste oil piping is sufficiently cooled down to 45C or below.

c) Open waste oil tank and clean the inside.

Remove sludge(*) accumulated on the bottom of tank.

72
 3.13 Burner Incineration Air Adjustment
The incineration air supplied in the burner is adjusted by the damper on the burner fan.
Since this damper also controls the temperature in the furnace, it should not be touched.

Note
Refer to values for damper opening in commissioning test report.

＜Description of operation＞
Damper open : Incineration air increases, reducing temperature in furnace.
Damper close : Incineration air decreases, increasing temperature in furnace.

Note
Oxygen concentration and temperature in furnace is determined by MPEC76 (40).
Adjusting the position of the damper is not only cause incineration setting to stray from proper
values, it also cause Furnace high temperature alarm and Furnace pressure increase alarm light
to come on. When replacing parts, make sure the adjustment screw of the damper is kept in its
original place.

Adjustment screw Opening Label

Damper (close)

Damper (open)

Figure 4-17 Figure 4-18

Burner incineration air adjustment damper Details of damper Adjustment screw

73
3.14 Replacing Thermocouple

CAUTION
When replacing thermocouple, use caution not to break ceramic protector tube.
Any impact may damage ceramic protector tube.
When replacing ceramic protector tube, install heat insulator in gap between castable and
Instruction
protector tube.

Note
Thermocouple is consumable item. Because it normally repeats heating and cooling, it inevitably
degrades.
Periodically replace it during following inspection according to operating conditions.

a) Make sure that furnace is sufficiently cooled down to 45C or below.

b) Turn off circuit breaker for main power.
c) Remove casing on back of incinerator.
d) Remove thermo/air pressure switch mounting box from ejector(*), and disconnect wiring inside.
e) Remove and replace thermocouple (ceramic protector tube).
f) Connect wiring and attach thermo/air pressure switch mounting box to ejector.
g) Attach casing on back of incinerator.
h) Turn on circuit breaker for main power, and make sure that furnace temperature is displayed.

Thermocouple
protective tube

Thermocouple
SC blanket

Castable

Figure 4-19 Details of thermocouple installation

74
4. Handling Waste Oil Pump
4.1 Piping

CAUTION
Exceeding tightening torque for piping may break opening of pump.

Excessive application of teflon tape and use of liquid sealing agent reduce friction and
Caution
cause over-tightening, that may break opening of pump.

 Maximum tightening torque for piping screws of waste oil pump is as follows.
 Diameter (Rc) 3/4
 Torque (Nm) 30

4.1.1 Piping Connection

a) Securely connect piping joints to keep it completely sealed and prevent leakage and air suction.

b) Install support equipment (piping supports) so that weight of piping is not on pump.

c) Check length and angle of pipes and connect them in way that no excessive force is applied to
pump.

d) Some of piping such as high pressure hoses have small diameter. Check not only screw
diameter but also pipe inside diameter before use.
 Pressure gauge is recommended to be installed for checking conditions of pump.
 For maintenance of pump, stop valves, union jacks, and other joints are recommended to be
installed.
 When viscous liquid is used, use of piping that diameter is larger than that of pump is
recommended in order to minimize pressure loss.

75
 4.1.2 Piping and Joints

CAUTION
Insufficient flushing of piping leads to failure of pumps and connection devices.

Caution
Mixing of air and generation of bubbles in pipelines cause noise, vibration, and heat
generation, that may result in breakage of pump.

a) Before assembly and use, flush piping and make sure that it is clean.

b) Make sure that no air gets mixed in pipelines.

• Pipes need to be cleaned inside before they are connected to pump. They may contain dirt from
storage or shavings from threading.

Air

Air

Bad
Bad

Bad

Figure 4-20 Examples of bad piping

76
 4.1.3 Suction Filter

CAUTION
Mixing of foreign substance in oil significantly shortens life of pump. In the worst case, it
breaks pump. Filter needs to be cleaned regularly. Use of clogged filter causes abnormal
Instruction noise, vibration, and poor discharge, leading to breakage of pump.

Depending on properties of waste oil to be treated, rotor of pump may wear out and show
reduced performance early on. Worn pump rotor is not covered by warranty.
Caution

a) Use suction filter of 60 mesh or larger and of as much capacity as possible.

b) Check specification of filter, and use one with filter passage resistance of 0.01 MPa or less.
 Suction filters are designed to remove only large foreign substances that interfere with
operation of pump.
Minute foreign substances that pass suction filter significantly shorten life of pump.

4.2 About Safety

4.2.1 Safety Devices

DANGER
If electrical current flows during wiring of motor, electrocution and other personal injury as
well as malfunction of equipment may occur, leading to serious accidents.
Caution

a) Make sure that power is shut off when wiring motor.

 Make sure that no outsider can operate it.

b) Install galvanometer or pressure sensor at pump outlet so that idling of pump can be detected.
 Be sure to prevent burnout of fuel supply part.

Note
Oil seals and packings cannot be used permanently. Either install pump in safe place where no
accidents or failures will be caused even in case of oil leakage, or attach protective equipment.

77
 4.2.2 Safety Measures

WARNING
Do not touch pump or motor during or right after operation.
There is risk of burning.
Instruction

Involving of fingers, hands, or objects in driving parts may result in personal injury.
Caution

Note
 Keep equipment away from children or anyone without ability to sense danger.
 Attach protective equipment to driving parts in order to prevent involving of fingers, hands, or
objects.

4.3 Operation Preparation

4.3.1 Pre-operation
a) Check pump rotation direction as well as directions of inlet and discharge opening.

b) Check to see if tank pipe on inlet side has oil.

c) Check piping for any loosening.

d) Make sure that main valves in front and back of pump are open all the way.

e) Start pump and check rotation direction.

4.3.2 Start-up
a) Do not idle pump for longer than 10 seconds. Operation stops if intake fails.

b) Check possible causes of failed intake below.

 Resistance at discharge side is large and air has trouble passing through.
 Resistance at intake side is large. Piping or distance is too long.
 Air is being taken in.
 There is no oil. Pipe is not reaching to surface of liquid.
 Number of pump rotation is too few.

78
4.4 Inspection
4.4.1 Inspection

WARNING
When abnormal condition is detected, stop pump immediately and repair defective part(s).
Using equipment without repairing may result in serious accidents.
Instruction

Be sure to inspect pump before starting operation. Particularly check for any oil leakage, abnormal
noise, and generation of heat.

4.4.2 Overhaul
Note
Do not overhaul pump. We cannot guarantee quality of products that are overhauled and
assembled.

4.5 Maintenance

WARNING
Use above maximum ambient temperature may cause damage to waste oil pump and
motor and result in serious accidents.
Caution

 Malfunctions are mostly caused by contaminated and degraded liquid in use.

Perform maintenance regularly.
 Motors that are stored for a long time may cause abnormal conditions such as abnormal noise
and heat generation. Perform inspection before use.
 Coupling used in waste oil pump is consumable item. Replace it either yearly or every 5,000
hours.
 We recommend keeping seal kit and other spare parts to avoid interruption of operation due to
abrupt failure or reduced performance over time.

4.5.1 Working Ambient Temperature

 Waste oil pump can be used in ambient temperature range of -20 to 45°C.

79
 4.5.2 Checking Working Temperature Range

WARNING
When hot oil is used, pumps and leaked oil may cause burning.
Caution

CAUTION
Use of liquid above maximum temperature may significantly shorten life of waste oil pump,
lower its performance, and cause liquid leakage.
Caution

 Working liquid temperature range is between -5 and 120C. (Normal use: 100C)

4.5.3 Checking Working Viscosity Range

CAUTION
Use of liquid outside working viscosity range may significantly shorten life of waste oil
pump, lower its performance, and cause liquid leakage.
Caution

 Working liquid viscosity range is between 5 and 550 mm2/cSt.

 As viscosity decreases, volume efficiency decreases. (Discharge rate is reduced.)

4.5.4 Checking Rotation Direction

 Direction of rotation and intake/discharge direction of waste oil pump are fixed. Set up driving
parts so that rotation direction matches what is indicated on name plate of pump.
 In order to protect oil seal, waste oil pump has pressure release hole on pump intake side
(negative pressure) from oil seal.
Note
If rotation direction is wrong, intake and discharge sides switch, and hole meant for pressure
release causes discharge pressure to apply to oil seal; this makes oil seal to burst and oil to spout
out.

80
4.6 Driving Pump
4.6.1 Installation Check

CAUTION
Large degree of misalignment between waste oil pump and motor increases vibration and
noise, and it may result in breakage of pump.
When attaching coupling to pump shaft, hammering in coupling hard causes pump to
Caution
malfunction.

Waste oil pump is designed to line up with shaft center of motor. Turn dial gauge 360 degrees to
keep movement of dial gauge within 0.05 mm.

Pump side shaft

Motor side shaft

Figure 4-21 Centering

Note
When attaching coupling, do not hammer it in hard. It causes pump to malfunction.

4.7 Intake Performance

CAUTION
When resistance is greater at discharge side, intake performance is reduced.

Caution When air is mixed in at intake side, intake performance is significantly reduced.

Note
If pressure on intake side falls below 0 MPa, cavitation occurs. It causes abnormal noise, heat
generation, and discharge malfunction, and may result in breakage of pump.

81
CHAPTER 5: TROUBLE SHOOTING

1. Required Actions before Requesting Repair

WARNING
To take required action on alarm, turn off circuit breaker of the incinerator main power four
hours after incineration stops, and follow specified procedure for each item to perform it
properly.
If problem persist after performing specified repair procedure, follow Chapter 3, "2.
Instruction Operation/ 3.Stop" to stop the operation immediately, and contact with MIURA offices.
Do not perform operations other than ones instructed. Doing so may result in serious
accidents.

P36 "Chapter 3. 2.Operation " P47 "Chapter 3. 3. Stop"

Table 5-1 Trouble shooting

Description of
Cause Countermeasure
Symptom/Alarm
No power is supplied. Turn on circuit breaker for main power.
Power lamp does not Check for short-circuit in wiring and replace
Fuse is blown out.
light up. fuse.
Power lamp is broken. Replace lamp.
Look through the sight window to check
There is remaining fire(*) inside
Activated inside furnace, and continue running
furnace.
during cooling fan until remaining fire is put out.
pre-purge(*) Clean flame eye.
Flame eye(*) is broken.
If problem persists, replace flame eye.
Check burner dimension.
[Misfire/Flame Failure] alarm

Clean burner.
When alarm goes off

It is due to an incineration Replace any defective parts.

adjustment error of burner.
Check to see if values of oil pressure and
atomize air(*) pressure are appropriate.
Activated Solenoid valve is not working. Replace solenoid valve.
during Clean piping.
ignition/comb Piping is clogged. When stopping operation, replace with
ustion D.O.(*)
Water content in waste oil is
Discharge drain.
high.

Clean flame eye.

Flame eye is broken.
If problem persists, replace flame eye.

82
 Description of
Cause Countermeasure
Symptom/Alarm
Clean ignition rod, because there is
[Misfire/Flame Failure] alarm

Activated possibility of leakage.

When alarm goes off

during Check spark rod dimension and adjust

Ignition spark is not working.
ignition/com proper dimension.
bustion If ignition transformer(*) is malfunctioning,
replace it.

Activated
Look through sight window to check inside
during There is remaining fire(*) inside
furnace, and continue running cooling fan
cooling furnace.
until remaining fire is put out.
operation(*)

Description of
Cause Countermeasure
Symptom/Alarm
Reduce intensity of incineration and the
Incineration is excessive.
amount of solid waste to charge.
High furnace
It is broken if temperature display shows
temperature Thermo couple sensor in furnace is
----.
broken.
Replace sensor.
Open main fuel valve. Make sure that fuel
No fuel is supplied.
piping is not clogged.
Air mixture(*) has occurred in fuel
Auxiliary burner Vent air from it.
piping.
oil pressure drop
It is malfunction or reduced
Replace solenoid pump.
performance of solenoid pump.
When alarm goes off

Pressure gauge valve is closed. Open pressure gauge valve.

Reduce intensity of incineration and the
Incineration is excessive.
amount of solid waste to charge.
Hot exhaust gas
Thermo couple sensor for exhaust Replace thermo couple sensor for exhaust
gas is broken. gas.
Open main fuel valve.
Waste oil No fuel is supplied.
Make sure that fuel piping is not clogged.
pressure drop
Pressure gauge valve is closed. Open pressure gauge valve.
Ejector(*)・Stack is clogged with
Inspect and clean stack.
foreign substance.
Reduce intensity of incineration and the
Incineration is excessive.
Furnace amount of solid waste to charge.
pressure Volume of air from cooling fan is Clean suction opening and duct of cooling
increase reduced. fan.
If same alarm occurs after cleaning conduit
Furnace pressure sensor is clogged
of furnace pressure sensor, replace
or out of order.
pressure sensor.

83
 Description of
Cause Countermeasure
Symptom/Alarm
Open main air valve.
(*) No atomize air is supplied.
Atomize air Replace air regulator.
pressure drop Atomize air pressure switch is
Replace atomize air pressure switch.
When alarm goes off

out of order.
Thermal relay for burner fan is Make sure that electric motor is not locked,
Burner fan tripped. and reset thermal relay.
malfunction Fan pressure switch is out of Inspect piping to pressure switch and make
order. (Optional) sure that it is not clogged.
BCU(*) Low voltage or power outage
Make sure that power supply is stable.
malfunction during combustion.
Cool fan Make sure that electric motor is not locked,
Cool fan thermal relay is tripped.
malfunction and reset thermal relay.

Description of
Cause Countermeasure
Symptom
Charging door and/or ash Close door(s) and turn handle to where it
Incineration lamp removal door are/is open. stops.
does not light up Cooling fan running switch is not
Set cooling fan running switch to ON.
when incineration set to ON.
switch is pressed. Limit switch of door is out of
Replace limit switch.
order.
Cooling fan does not Cooling operation(*) is in Wait until cooling operation is finished.
stop. operation. (About four hours)
It is due to a malfunctioning of
Replace thermo couple sensor.
furnace thermo couple sensor.
Temperature display Temperature indicator is LLLL only during
is incorrect. The temperature sensor in the combustion , check the polarity of the
furnace is wired wrong. wiring. If the indicator shows _____, make
sure that wiring is connected.
Temperature in furnace is high. Let furnace cool down to at least 220C.
There is remaining fire(*) inside
Make sure that incineration lamp is off.
furnace.
Door does not open.
Wait until cooling operation is finished.
Cooling operation is in progress.
(About four hours)
Power is not on. Turn on power.

84
Table 5-2 Trouble-shooting (Option specifications)
Symptom Cause Countermeasure
Waste oil temperature is too
Check waste oil temperature.
Waste oil temperature high.
abnormal Waste oil temperature is too
Check waste oil temperature.
low.

Table 5-3 Trouble-shooting (during incineration)

Symptom Cause Countermeasure
Check atomize air pressure, and
readjust it to proper value.
Atomize air(*) pressure is not set
Make sure that atomize air piping and
properly.
waste oil burner are not clogged, and
Flame does not stabilize clean waste oil burner.
during incineration. Check heating temperature and trace of
Viscosity of waste oil is high.
piping.
Water content in piping is high. Discharge drain.
Waste oil piping is clogged. Check and clean piping.
Burner is dirty. Clean burner.
Flame of auxiliary burner Nozzle tip is clogged with dirt. Clean burner.
does not stabilize. Burner is dirty. Clean burner.
Waste oil does not burn
Residual heat is insufficient. Refer to table 5-1.
by oneself.

Table 5-4 Trouble-shooting (other)

Symptom Cause Countermeasure
Hair cracks do not pose problem to
Castable is cracked.
operation. Continue using equipment.
Part of castable has
Contact with MIURA offices.
fallen off.
Piping is loose. Tighten piping.
Oil leakage Oil seal of waste oil pump is Replace waste oil pump.
broken. Clean and inspect waste oil strainer.

85
CHAPTER 6: STORAGE

1. Movement or Resale

WARNING
Do not perform installation work and connection of incidental equipment unless it is
specified.
Prohibition
Failure to observe this instruction may cause physical injury.

In reselling or reusing incinerator, procedure that is based on rules of each classification must be taken.
Contact with MIURA offices since it must be checked that vessel equipment does not affect normal
operation of incinerator. Installation work or connection of incidental equipment that is not specified
may cause physical injury. If our products are resold, deliver instruction manuals and related materials
along with product to new owner, and inform us of resale (We need to transfer maintenance records
that is kept since it was placed in service).

2. Export
When exporting products whose export is regulated under the Foreign Exchange and Foreign Trade
Act, approval of the Japanese government for export must be obtained. When MIURA products are
exported, products and their use are subjected to many laws and regulations in the destination country.
If there is plan to export MIURA products, contact with MIURA offices.

86
CHAPTER 7: DISPOSAL

1. Disposal Procedure
This incinerator must be disposed as industrial waste.

Dispose incinerator properly according to the laws in the country where it is to be disposed. For details
about recycling of materials that is used in this incinerator, contact with MIURA offices.

87
CHAPTER 8: GUARANTEE

1. Description of Guarantee
Guarantee period is either of following, whichever comes first:
 12 months after vessel is delivered.
 18 months after equipment is shipped
If incinerator has trouble within this guarantee period, trouble is repaired or parts are replaced for free
so that incinerator functions as required in agreement as long as it has been installed and used
properly according to instruction manual, warning labels, and other instructions.
Trouble with equipment other than MIURA products that is installed on vessel is not covered by this
guarantee. Deterioration of consumable parts is not covered by this guarantee unless it is abnormal
deterioration.
In any of following cases, repair work is charged even within guarantee period:
(1) Failure or damage that is caused by wrong use, poor maintenance, or improper repair or
remodeling
(2) Failure or burnout due to natural disasters such as fires, typhoons, or tsunamis, or other external
factors
(3) Replacement of consumable parts
(4) Other matters that is specified in the agreement
If repair work is required outside Japan, travel expenses including accommodation and transportation
fees is be charged. It cannot be provided repair service in countries where it is banned traveling.
If there is any question about repair service within or after guarantee period, contact with MIURA
offices.

2. Contact Information for Inquiries about Products and Instruction

Manual
If you have any question about products that you purchased or about this instruction manual, contact
with MIURA offices.
(Contact information can be found on back cover.)

3. Sale of Instruction Manual

If you need instruction manual for this incinerator, contact with MIURA offices.
In that case, let us know vessel name, nationality of vessel, vessel number, incinerator number, and
manual number on cover of instruction manual.

4. Sale of Parts
If you need parts that are used with this incinerator contact with MIURA offices.
In that case, let us know vessel name, nationality of vessel, vessel number, and incinerator number.

88
<NETWORK>
JAPAN SERVICE OFFICES
MIURA CO.,LTD.
SHIP MACHINERY DEPT. 7, Horie, Matsuyama, Ehime, Japan,
799-2696
TOKYO MAINTENANCE DIV. 2-15-35 Takanawa, Minato-Ku, Tokyo,
Japan, 108-0074
SHIMANAMI MAINTENANCE DIV. 3-20-9 Matsunaga-Cho, Fukuyama,
Hiroshima, Japan, 729-0104

HIROSHIMA MAINTENANCE DIV. 1-6-30 Nishihara, Asaminami-ku,

Hiroshima, Hiroshima, Japan, 731-0113

KYUSHU MAINTENANCE DIV. 1-4-20, Kamimuta, Hakata-ku Fukuoka,

Japan, 812-0006
1.CHINA 5.NETHERLANDS
MIURA INDUSTRIES (CHINA) CO., LTD. MIURA NETHERLANDS B.V.
SHANGHAI BRANCH, SHIP MACHINERY DIV. Buitenveldertselaan 106, 1081AB Amsterdam, the
Floor 5, Building 3, No.658 Jinzhong Rd., Changning Netherlands
Dist., Shanghai China
miuranetherlands@miuraz.com

MIURA INDUSTRIES (CHINA) CO., LTD. FUJI TRADING (MARINE) B.V.

ZHOUSHAN BRANCH

TEL: (+86)580 2261 606 FAX: (+86)580 2268 268 6.PHILIPPINES

PHIL-NIPPON KYOEI CORP.
MIURA INDUSTRIES (CHINA) CO., LTD.
NANTONG BRANCH

7.SINGAPORE
TEL: (+86)513 8118 7502 MIURA SINGAPORE CO PTE. LTD.
No.3 Soon Lee Street #03-36-37-38, Pioneer Junction
MIURA INDUSTRIES (CHINA) CO., LTD. Singapore 627606
SHENZHEN BRANCH

TAKNAS ENGINEERING PTE.LTD.

TEL: (+86)755 2601 0417

SHANGHAI WEN CHIUAN MARINE

SERVICE&ENGINEERING CO., LTD. FUJI HORIGUCHI ENGINEERING PTE.LTD.

8.TAIWAN
2.DENMARK MIURA CO., LTD TAIWAN BRANCH
SCANDINAVIAN BOILER SERVICE A/S 17F-9., No.189, Sec. 2, Keelung Rd., Xinyi Dist., Taipei
11053, Taiwan

3.GERMANY MING YUNG MACHINERY.,LTD.

TAKNAS MARINE ENGINEERING GMBH

YU-CHEN MARINE SERVICE&ENG.CO.,LTD

4.KOREA
DONG YANG ENGINEERING

SEIN BESTECH
9. U.S.
MIURA AMERICA CO.,LTD. MARINE DIV.
 OPERATION MANUAL
SHIPBOARD INCINERATOR BGW-N
Published by MIURA Co.,Ltd. Ship machinery Dept. Mar 2013.
8th edition Mar. 2018 NO. E991-1303-08

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