120-140TPH Asphalt Batch Mix Plant 120-140吨/小时沥青站

Does it comply the

Part II. Technical Requirements Suppliers Offer
requirement?
1.Scope

It is the intent of these specification to describe 120- 140TPH Asphalt mix plant, fully wheel mounted, suitable
(dimensioned) for road mobility consisting of Mobile Cold aggregate feeder bins, Mobile Drying & Screening unit
comply
with burner, Mobile Bag filter system, Mobile Control room, Mobile Weighing and Mixing unit, with air
compressor, diesel tank, diesel type generator set.

For ease of mobility the following units shall be able to fit inside sea container
• Bitumen storage tank,
• fuel storage tank, All fit in a 40ft HQ
comply
• Bitumen drum melting unit, containers. 15 containers
• thermal hot oil heater and
• Generator

The rated plant hourly production capacity shall be 120TPH @5% & 140TPH @3% moisture content and 2500 120TPH @5% and 140TPH
comply
meter above sea level. @3%

Whole plant shall be erected at ground level foundation. comply YES

• The unit bid to be supplied must meet National & International Standards. Standard Units

• All units & components shall be designed & constructed to handle Asphalt mixing process that are generally
Comply
used in the industry for these type of applications

Fully automatic
• The plant shall be controlled by semi and fully automatic system with manual override, preferably equipped Fully Automatic/Manual
control, no
with a hydraulic power pack self-jacking support system. Operation
hydraulic system

• Power supply shall be both from the national grid & from fully enclosed diesel engine driven electric Compatable with different
comply
generator(s). power sources
• The rated plant hourly production capacity shall be 120TPH @ 3% and 2500 meter above sea level assuming the
comply
following conditions: -

• Cold feed aggregates……...…...3% moisture content Comply 3% Moisture content

• Density of aggregates ………….……... min. 1600 kg/m3 Comply Upto 1700kg/m3
• Ambient temperature……………………... above 100c Comply above 100°c
• Diesel fuel calorific value …… maximum 10,200 Kcal/kg Comply 10,200kcal/kg
• Specific heat of aggregates………….….... 0.21 Kcal/kg Comply 0.21kcal/kg

• Final product temperature ……...150° - 180°c (Adjustable) comply 130° - 165°c (Adjustable)

• Maximum aggregate size ……………………40 mm 45mm

• Bitumen content in %………………………... required
• 45 second weigh/mix cycle at 100% plant utilization. Comply
• Mix Capacity………………………..min 1900kg/batch comply 2000 kg/Batch
• 45 second weigh/mix cycle at 100% plant utilization. comply cycle time 45s
Compartments:
• Made of at least 5mm hot rolled steel including complete supporting comply 5mm

• Inclined walls shall guarantee trouble-free discharge of any material and complete with steel extension walls on
3 sides An in-built ramp wall, constructed with formed galvanized guardrails, fitted over the unit, acting as awall
to the ramp, avoiding the need of concrete walls

• Specify Make, Model, Manufacturer & Country of origin of the plant

2. Cold Feed Bins mounted on mobile wheel chassis comply
• No. of compartment -----------------------------min 5 comply 5 Storage bins
• Capacity (heaped) of each compartment------min 9m3 comply 10m3
• Hopper loading width---------------------------max 3000m comply width:3m
• Equipped with sound-light alarm device for underfeeding comply Fitted sound-light alarm
• Anti-bridging gun (Electric outer vibrators) comply
• Width ---------2500mm (suitable for road transportation) 2200mm 2200mm
• Belt feeder, B 540mm, frequency control, each capacity: min.55tph; Motor 5*2.2kw
Motor 4*2.2kw 550m
variable speed geared motor, shaft mounted
• Manufacturers STD frequency converter
• Collecting Belt Conveyor, B=600mmmin, capacity: min 130tph, Motor 5.5kW comply 600mm
• Hopper wall vibrator of sand bin 2*0.18kw comply 2*0.18kw

take out the oversize

• Vibrating screen which take out the oversize aggregate which is over 40mm comply aggregate which is over
40mm

• Inclined belt conveyor, Chevron type B=600mm, capacity: min130t/h, Geared Motor 9.2kw comply 600mm

• Four variable speed feeders, independent operation, remote controlled from operator’s console comply 5 Frequency converter

• Rollers mounted on sealed or life pre-lubricated bearings. comply Sealed

Semi-trailer chassis, single

• Semi-trailer chassis, single axels and 4 wheels comply
axels and 4 wheels

• Hopper wall vibrators of sand bin comply

Reputed frequency
• Reputed frequency converter comply
converter
• Upper mesh sieves which filtering oversized aggregate, size 100x100 mm comply 100X100mm
2.1 Gauge/Indicators comply
Cold feeder accumulated output to be shown on the MMI at the computer comply YES

Variable speed
• Equipped with appliance for regulating delivery rate for each bin comply
belt,Frequency converter

• Equipped with available alarm system and/or no-flow indicators comply indicators
 each bin with collector
• Fitted with aggregate collector belt from each bin with collector belt controls comply
belt controls

Supplied with all

• Furnished with any other accessories & controls that deems necessary for efficient use of the feeding system. comply
accessories & control
2.2 Collecting Conveyor Belt
• Suitable for conveying abrasive materials comply YES
Fitted with Belt tention
• Equipped with belt tension device & scrapers comply
device
• Adequate enough to convey the aggregate without spillage. comply
3. Mobile Dryer Drum Unit & Burning System
3.1 Dryer Drum
• Specify make & model
• mounted on semi-trailer Chassis, double axels 8 wheels comply Double axel 8 wheels
• Dryer type--------------rotary comply Rotary

• Drum diameter and length adequate as per manufacturer standard and not less than 1700mm and 6.3meter Dimensions:
comply
respectively 1800*7870mm

• Drum drive motor power rating------adequate capacity Motor power 4x

4* Power: 11kw
Drive motor power 1x 30KW, with full-loop chain and sprocket around drum 11KW

• Rated Production Capacity:140TPH at 3% & 120TPH@ 5% moisture content, at 2500m above sea level
comply
assuming the conditions mentioned under item No. II- 1 (scope).

Can avoid feeding of

• Equipped with special feature to avoid the feeding of oversized material into the dryer. Check comply
oversized materials

made of 10 mm thick
• The drying drum is made of 10 mm thick plate comply
plate
Dryer drum shell material shall be ASTM A516 grade 70boiler steel plate comply YES

• Fitted with a thermometer comply Temperature sensor

• All drives shall be covered and the safety device shall be installed. comply Installed the safety device

• Drum to be fitted with single piece, hot-formed ring without welded joint (drum tyre), on each end. It should be
comply YES
mounted to the drum shell with spring plates

• Each drum tire should be of minimum thickness of 75mm & minimum width of 125mm seated and rolled on 2
comply YES
trunnion rollers with minimum thickness of 30 mm and width 170 mm

• Feeding end of the inclined drum should be further guided by 2 steel guide rollers to limit the axial movement. comply YES

• Special shovel flights must be installed to the internal surface along the drum length to transport and form
comply YES
efficient drying curtain to minimize fuel consumption

3.2 Hot Aggregate Elevator (Optional) comply

• Totally enclosed. Pivots down for transportation comply Totally enclosed
• Replaceable steel buckets min. width 250mm comply 250mm
• Equipped with inspection doors at head and tail comply fitted with doors

• Elevator capacity------------- 160-200 tph comply capacity: ≥ 160 Tons Per

Hour
We update the design for
* Any updated design in improving heat loss or cost reduction features shall be explained: comply
elevator

3.3. Burner System

High-pressure burner, suitable for diesel oil, equipped with blower, fuel pumps, fuel storage tank and the required Diesel oil burner
comply
control units. Mechanical atomization

3.3.1 Burner
• Specify make & model comply

• A completely enclosed silent burner with automatic control & the necessary fittings meters and gauges comply YES

• Preferably all setting, display and control Equipment be housed in control cabin. comply YES
• Provided with self-ignition system. comply YES
Automatic flame failure
• Safety device shall be installed for flame failure & re-ignition. comply
protection devices
• Fully automatic, electrical ignition by propane gas comply YES
Automatic flame failure
• Flame failure ignition detected by photocell comply
protection devices

Automatic flame failure

• Auto startup of burner system for maximum safety comply
protection devices

• To be retracted type for easy servicing and access. comply YES

• Burner capacity--------Adequate enough to meet the required production capacity of the drier to be offered. comply Rate fuel oil 1000kg/h

• Fuel type ---------------------diesel oil [fuel] comply Diesel Oil

• Specify the time duration required to start. comply
• Burner oil consumption……………. specify burner fuel consumption comply Diesel oil burner

Automatic flame failure

• Equipped with emergency automatic flame-out protection device comply
protection devices

• Flame control ----- equipped with automatic instrumentation to increase or decrease the flame as required for Automatic flame failure
comply
maintaining optimum air/fuel ratio throughout the range. protection devices

• Semi-trailer chassis, double axels 8 wheels comply Double axel 8 wheels

3.3.2 Burner Blower
• Specify Make, Model comply
• Adequate for producing the necessary pressurized air comply YES

Automatic flame failure

• Complete with electric motor and the necessary safety devices comply
protection devices

Temperature sensor with

• Thermocouple temperature measuring equipment comply
infrared thermometer

Burner temperature
• Burner temperature control system comply
control system

• Blower drive motor: minimum 25kW comply Air blower Power: 25kw
3.3.3 Fuel Oil Supply Pump & Fuel Circulation comply

• Fuel pump ……………..2.2kw (min)

comply Fuel pump:5.5KW
High pressure pump to be directly coupled with blower motor

• Equipped with gauges. comply Equipped with gauges.

• Complete with electric motor, oil ducts including the necessary fittings. comply YES
3.3.4 Fuel Storage Tank & system for the whole plant comply
• The tank body:

o Either elliptic or cylindrical of horizontal type for ease of transport shall be fitted into container comply Fits in 40ft HQ container

o Designed & constructed of high tensile alloy ST37.2 steel. comply YES
o Properly vented to relieve both pressure & vacuum. comply YES
fitted with graduated fuel
o Equipped with graduated fuel level indicator comply
level indicator

o Equipped with ladder, non-skid catwalk, level indicator, and over full limit switch as well as lifting hooks. comply YES

• Capacity---------------------min. 30,000liters comply diesel oil tank:30t

• Diameter -------------------≤ 2200mm comply ≤ 2200mm
• Shell thickness -------------min. 5mm comply 5mm
• Head thickness ------------min. 6mm comply 6mm
• Manhole diameter---------- min I.D. 500mm comply 500mm

• Mounting-------------Skid type, that includes support saddles and lifting hooks & others, which are required for Skid Type with saddles
comply
easy resting & loading/unloading of the tank. and hooks

• Supplied complete with pipelines, delivery pump, return pump ...etc. comply YES

• Set of standard pipes for connecting diesel fuel storage tank to the plant burners shall be supplied with the Supplied with pipes and
comply
necessary controls. control units

• The fuel pipeline shall be fitted with flow meter counter. comply has flow meter counter

• With efficient oil pumping system fuel pipeline shall be fitted with flow meter counter. comply YES

4. Mobile Dust Collector with Gravity & Bag House Dust Filtering Unit comply

• Type ---------- Elliptical Bag 3 compartment(Specify number of bags) min 320bags comply NOMEX bag: 480pcs

• Bag house filter, dust filtering area: (min) 500m2 comply Filtering area: 518m2
Induced draft fan Power:
• exhaust fan: min 90kw comply
90kw

Screw conveyor(under
Filter Hopper screw conveyor: Φ219mm, 2x3.0kw comply
bag house dust) 3kw*2

Screw conveyor(under
Cross horizontal screw conveyor : Φ273mm, 1x5.5kw comply
cyclone) 5.5kw
Vertical screw conveyor : Φ273mm, 1x11kw No need
Inclined screw conveyor : Φ219mm, 1x9.2kw No need
• Equipped with cold air wind device
• Bag type---------------Nomex(400gm/m2) comply NOMEX bag: 480pcs
• Air flow capacity………52,000m3/min, exclusion filter bags comply
 Temperature sensor for
• Thermocouple temperature measuring equipment comply
exhaust air
• Semi-trailer chassis ,Single axle 4 wheels comply Single axel 4 wheels
4.1 Filtering System
• Ambient cleaning system for filter bags without using Air compressor comply YES

• Cages for filter bags ------ in Aluminum or power coated steel wire material for corrosion resistance comply YES

4.2 Exhaust system

• Incorporated with high performance exhaust fan. comply

• The dust exhauster shall extract dust and gases from screen, aggregate balance and/or weigh hopper, hot
comply YES
aggregate bins, mixer……etc and convey them through ducts to the dust extracting system of the plant

• Waste gas chimney with the necessary pipes and support. comply YES

• Chimney height minimum 6 meters height from ground level during plant operation. Folded in 2 pieces
comply 6 mts Chimney
mounted on Mobile Bag Filter during transportation

4.3. Filler Silo

• Adequate capacity comply

Recycled filler bin

• Recovered filler silo from bag filter---- min 6m3 comply
Volume: 6m3

Discharge Screw conve

• Filler screw conveyor, min Φ219 mm, 1x5.5kw comply
5.5kw
• The following shall be included in the supply:
Level indicator for filler silo with indicating light on main control panel comply Fitted with level indicator
Others which seems necessary for efficient operation comply
4.4 Stationery Foreign filler Silo (Optional)
Filler silo capacity---- min 30 m3 comply Filler bin Volume: 30m3
• Top position cartridge filter comply
Filler conveying
• Filler dosing screw conveyor, min Φ219 mm, 1x7.5kw comply
screw:7.5KW
• Adequate capacity Blower with rotary valve for silo filling comply YES
• The following shall be included in the supply:
➢ Level indicator for filler silo with indicating light on main control panel comply Fitted with level indicator
➢ Others which seems necessary for efficient operation comply

5. Mobile Screening-Weighing- Mixing Units

comply
preferably drying and screening in one chassis , weighing and mixing in one chassis

• Each unit shall be fully wheel mounted for road mobility to be within road and/or rail transport dimensions,
comply Fully Wheel mounted
easily inter-connected and fitted with stair handrail & catwalks.

Fitted with metal support

• Fitted with strong metal support legs, which permit the mixer to discharge in to dump truck bed. comply
legs

5.1 Screening Unit

• Recent manufacturer standard adequate capacity to meet the production line requirement. comply YES

• Screening system over Dryer Drum (Screen Drum) design type is the most preferred type plant and will be given Our factory uses
Vibrating Screens
additional technical merit points during technical evaluation. vibrating screens

5.1.1 Screen Over Dryer Drum (If applicable)

• For Screen over Dryer Drum……… External drum shellshall befitted with screw flights to push aggregates over
Our factory uses
4 different sizes of screens. Screens must be mounted over the screw flights for screening of aggregates over hot Vibrating Screens
vibrating screens
mineral bin compartments.
 Mesh size 4 layers: 6x6,
• Screening specification could be 5x5, 10x10, 16x16 & 22x22 mm or as per manufacturers std & to be
comply 11x11, 19x19, 31.5x31.5
delivered with sieve sizes 3mm, 6mm, 12.5mm, 22mm and 26 mm
(mm×mm)

• The aggregates on all levels shall evenly be distributed throughout the screen area comply YES
Fitted with Overflow &
• Furnished with coarse material overflow & oversize chute. comply
Oversize chute
• Totally encased and shall easily be accessible for inspection & maintenance. comply YES
• Easily removable. comply YES

• The screens shall have a normal capacity slightly in excess of the full capacity of the mixer or dryer comply YES

5.1.2 Screen
• Vibration screen Vibrating Screens

• Vibration screen 4 decks, screening areamin 40m3, specification 5x5, 10x10, Mesh size 4 layers: 6x6,
16x16 & 22x22 mm or manufacturers std & to be delivered with sieve sizes 3mm, comply 11x11, 19x19, 31.5x31.5
6mm, 12.5mm, 22mm and 26 mm (mm×mm)

• The aggregates on all levels shall evenly be distributed throughout the width of the screen. comply YES

Fitted with Overflow &

• Furnished with coarse material overflow & oversize chute comply
Oversize chute
• Totally encased and shall easily accessible for inspection & maintenance. comply YES
• Easily removable. comply YES

• The screens shall have a normal capacity slightly in excess of the full capacity of the mixer or dryer comply YES

5.1.2 Hot Bins

Subdivided into 4
• Subdivided into 4 compartments. comply
compartments
• Total capacity: 15m3 comply Total capacity: 15m3
Fitted with Overflow
• All compartment fitted with over-flow discharge. comply
discharge

• Each compartment shall be equipped with hatchway for withdrawing test samples of the different selections of
comply YES
aggregates.

• Fitted with current engineering practice insulation and its type shall be specified.
comply YES
Each hot aggregate bin fitted with Hi level indicator

• Walls made of anti-wear, abrasion & high temperature resistance material. comply YES

• Discharge openings & closings actuated automatically when the pre-determined weight of each type of
comply YES
aggregates is obtained.

• Total hot bins capacity-----------minimum 15m3 comply Total capacity: 15m3

• Over flow for hot aggregate bin & coarse materials over-flow of the screens shall be supplied with the entire
comply YES
necessary fitting, ducts and discharge chutes.

• Level indicator be furnished in each compartment be incorporated with indication on MMI screen comply Fitted with level indicator

• Fitted with pneumatically operated discharge system comply YES

5.2 Weighing Unit
• The unit shall be fitted with separate weighing mechanisms; comply
aggregate weighing
• Aggregate weighing hopper, comply
hopper
• Filler weighing hopper, comply Filler weighing hopper

• Bitumen metering by-liter comply Bitumen weighing hopper

• Scale unit system …………………..load-cell type comply Sensors*3

• Shall be controlled in the control cabin comply YES
• Equipped with fully automatic feeding mechanism comply YES
• Equipped with fully automatic balances comply YES

Hot aggregate (mineral) scale weighing capacity ……max2500kg

Maximum 2000kg Maximum 2000kg
Number of load cells = 3

Filler scale weighing capacity … … … … … … … … .max300kg

comply Volume: 300kg,Sensors*3
Number of load cells = 3

Bitumen (asphalt) scale weighing capacity … … … … … .max250kg comply Volume: 250kg

• Accuracy
Hot aggregate: ±0.3%;
Hot aggregate (mineral) scale weighing … … … … .±0.3% max comply bitumen: ±0.25%; filler:
±0.25%
Hot aggregate: ±0.3%;
Filler/Mineral scale weighing … … … … … … … … ..±0.2% max comply bitumen: ±0.25%; filler:
±0.25%

Hot aggregate: ±0.3%;

Bitumen (asphalt) scale weighing capacity … … … ..±0.25% max comply bitumen: ±0.25%; filler:
±0.25%
5.3 Mobile Mixing Tower Unit
5.3.1 Mixer comply
• Specify Make, Model & Country of origin comply
• Automatic operated locking device, etc. comply YES
• Equipped with over load device comply YES

• Fitted with twin shaft batch mixer or equivalent driven by a electric geared motor with transmission through
comply
synchronous helical spur gear.

• Fitted with pneumatically operated discharging system. comply YES

• The mixer shall be fitted with bitumen spraying/injection system and preferably pneumatically operated
comply
discharging system
Optional: Equipped with skip bucket type pulled by 2 cables and powered by electric brake motor with sprocket
and chain drive with capacity 1.35t skip bucket.

• Bitumen spray screw pump with thermal heating comply YES

Capacity:
• Double horizontal shaft forced mixer: 2000kg/batch, rated mixing cycle 45 sec, comply 2000kg/batch,cycle time
45s
• drive motor power 2x30kw comply Power: 30kw*2

• Mixer arms and paddles, should be made from high chrome alloy steel and special cast steel, are bolted to
comply YES
allow for easy replacement of these wear parts.

• The wall to be bolted with extremely high wear resistant austenitic Ni-Hard liners. comply YES

• Capable of producing homogeneous mix with a short mixing time, minimizing oxidation of bitumen. comply YES

• A non-contact infrared temperature sensor to be provided at the mixer outlet to remotely measure the
comply YES
temperature of the hot mix just after discharge.

• Hot aggregate binhi-lo level indicator comply YES

• Air cylinders & solenoid valves comply YES
• Semi-trailer chassis, single axle 4 wheels comply Single axel 4 wheels
• mixer discharge should be minimum 3350mm above ground level comply
6. Pneumatic System

power: 22kw,exhaust:
• Screw type air compressor, 7.5kw, min1.2m3/min comply
3.7Nm³/min

• Air storage tank 270L and air hoses comply Volume: 1000L
• Reputed pneumatic control elements comply YES
7. Control Cabin & PLC
• Air conditioned, thermally insulated with sound & vibration dampening suspension comply YES
• Equipped with complete control desk to operate the mixing plant, including all the necessary instrumentations,
fluorescent lighting, switch-gear, large windows for an optimum view of site for total visibility of plant comply YES
components, lockable doors & electric apparatus having enough working space.

• Equipped with Signals lamps for indication individual controls, selector switches, indicators for hot aggregates
comply YES
and filler

• Equipped with access ladder & platform to the entrance. comply YES

• A microprocessor system with color display and printer specially designed for asphalt plant use, which ensures
comply YES
perfect weighing, mixing, piloting etc of the plant system.

• Electrical equipment board shall be built in compliance with known international standards and shall contain all
comply YES
electrical and power equipment required for plant operation.

• There should be access to internal components. comply YES

• The entire necessary safety device shall be incorporated with the unit. comply YES

• Control desk including PLC & screen and all the operation buttons and all the meter displays and protection
comply YES
function (Adopt PLC & Computer, and frequency inverter) with remote monitoring and maintenance function

• Control system & control desk for entire plant comply YES
• Temperature control System comply YES
• Pneumatic control System comply YES
• Weighing control system for aggregates and loads and bitumen etc comply YES
• Printer comply
• Air conditioner comply
• Cables (including all the parts from control room to every parts of the asphalt plant, not including the part which
comply YES
from transformer to control room)

• Power outlet comply YES

• Desk, Chair etc comply YES
7.1 Alarm System

Alarm device shall be fitted for any malfunction of the plant and/or requirement of maintenance.
comply YES
All trip log should register in plant database

7.2 PLC (Features of control panel)

Fully automatic electronic solid state sequence control. comply YES
Operator override for manual or semi-automatic control. comply YES
Pilot lamps for indication of sequence currently operated. comply YES
Signals and alarms. comply YES
Storage of Fifty different types of mix proportions. comply YES
Automatic free-fall compensation. comply YES
mix design by percentage. comply
Total tonnage for a truck-full load.

Provision for printing operating data on a day to day basis, like mix proportions,
comply YES
Batch weight, Total no. of batches, subtotal, gross total etc.

PLC Control Panel can also be used to set cycle (batch) time, gates open close timing, alarms, etc comply YES

Hot aggregates temperature measured using infrared sensor at dryer discharge end. comply YES

PLC will help to store mix material data in different formats and print the same. Entire process can be displayed
comply YES
on main screen

Remote Burner flame synchronization with hot aggregates temperature. comply YES
Safety interlocks, in case of high temperature. comply YES
Programmable Logic Control (PLC) with HMI. comply YES
Online remote support for troubleshooting comply YES
8. Electrical Installation

• All wring of the individual unit shall be in cable channels, each cable shall lead to terminal boxes, including the
comply YES
integral parts of the switchboard with motor circuits and connecting cables.

• Electrical system shall be socket & plug type comply Socket and plug type
• All wires & cables shall be coded. comply YES

• Electric installations shall be in dust and watertight housing main switch with under voltage circuit breaker,
comply YES
short circuit-quick switch action release as well as built-in faulty current circuit breaker.

• electric circuits shall be provided with safety fuses and/or safety breakers. comply

• The electric circuits for motors shall be equipped with contactors and additionally safe guarded by thermal
comply YES
overload releases.

9. Container Fitted Bitumen Storage, Heating, Melting & Circulation Unit comply

9.1 Bitumen Storage Unit

• Container fitted rectangular in shape and horizontal type tanks for ease of transporting having a steel shell
comply YES
plate with internal reinforcement.

• Built according to the rules with a structure able to bear the pressure of the fluid contained. comply YES

Each storage tank to be equipped with thermal oil heating system for bitumen comply YES
• No. of tanks ---------------------- 2 comply Bitumen tank:2

• Each tank capacity---------------(Min.) 25 ton comply Capacity: 25t，

Volume：25m³
• Manhole internal diameter-------(Min) 500 mm comply 500mm
• Tank shell & head thickness------(Min) 6mm & 6mm respectively comply 6mm for both
Thermal oil heating
• Heating system---------------------by thermal hot oil comply
system
• Tank Width----------------------(max) 2100mm comply

• Tank length -----------------------max 6000mm comply

• Insulation ----- insulated with 75mm rockwool comply
• External part covering---- Color coated corrugated sheet comply YES

• Coils for hot oil circulation & heating level indicator, thermometer, suction device, manhole with breather pipe,
comply YES
lifting hooks non - skid steel walk way surface with access ladder & handrails shall be equipped with each tank.

9.2 Thermal Oil Heater & Burners

Manufactured under consideration of the latest technology meets known international standards and safety
comply
rules.

• Thermal oil temperature------------up to 3000 C comply

• Burner type --------------------------diesel fuel oil comply Diesel fuel
400,000 kcal fuel thermal
• Heating (thermal) capacity---------min 400,000kcal/hr comply
oil system
• Specify burner fuel consumption in lit/hr comply
• Bitumen melting plant capacity (t/h)--------sufficient enough for the plant (8- 11) comply
• With hot oil transfer pump, necessary controls, safety locks & automatic oil burner comply YES
9.3 Bitumen Melting Unit (Bitumen Drum Decanter)
The melting unit to be supplied shall consist but not limited to hatches with springs locking, manhole and door,
dial thermometer, level indicator, drums pusher in to the drainage chamber causing exit of empty ones, hot
oil circulation heating coils,bitumen pump with heating jacket, bitumen valves with heating jacket, thermal oil
comply YES
feed & return piping system, heater, burner, set of bitumen tank connections, electrical board for electrical
equipment of bitumen pump and hydraulic pumping unit, ground resting legs for the units during work ...etc. Its
capacity must be adequate enough for the plant.

• Lifting & positioning of drums by means of suitable device (hydraulic) shall be suitable for handling each drum Each drum handles more
comply
gross weight up to 300 kg. Hydraulic power pack to be included than 300kg,

• Drum cutting device shall be included in the supply. comply YES

• External part covering--------Color coated corrugated sheet comply YES

• All the necessary connecting pipes between tanks and piping to the plant shall be included in the supply. comply YES

• Melting chamber capacity------- 16 drums of each 200 kg net, drum size up to 650mmx height up to 950mm, comply 18drums 200kg each,

• Specify the melting rate of the unit. comply

• Melted bitumen reservoir capacity in lit--------- max 7000l comply
• Width of the melting unit--------------------= 2500mm width 2250, width 2250,
• Melting system --------------------------- by thermal hot oil. comply Thermal oil heating
• The whole set thermal oil heating pipelines & valves comply YES
• 3.5-4t/hr bitumen melting point rate comply 4T
• Bitumen supply preferably with circulation pump comply YES
9.4 Bitumen Circulation Unit comply
• Bitumen supply pump electric motor driven gear type comply YES
• Whole set bitumen pipelines and valves comply YES
• The pumps shall be heated by thermal oil. comply YES
• 11kw bitumen discharge in mixer by gravity with thermal oil heating comply YES
• Thermal oil circulation pump comply YES
• Complete thermal oil heating pipelines comply YES

10. Frame, Mounting , Ladders, Handrails, Walkways etc as std &required comply

• All the major units (i.e. Cold Feeder, Dryer Unit, screening - weighing - mixing unit, control cabin, Filtering Unit,
generator, Bitumen Heating, Mixer, Hot bins, Screens & Storage Tanks) of the plant shall be mounted on a comply YES
manufacturers standard

sturdy frame made of heavy pressed steel and arc welded & be equipped with ladders, handrails, walkways etc comply YES

• All units should have lifting hooks for easy loading/unloading. comply YES

• Part of the major units (Cold Feeder, Dryer Unit, Screening - Weighing - Mixing unit, Control Cabin, Filtering
Unit,) shall be mounted onto a spring suspension, heavy duty axle (s), pneumatic tired trailer with adequate comply YES
ground clearance.

• The trailer shall be equipped with over-run brakes, parking brakes, road lights and towing bar adequate to
comply YES
withstand road strains, fifth wheel attachment and operational support legs provided

10.1 Transport Dimensions with Truck

• Width----------------min to be specified comply
• Height-----------------max to be specified comply
• Specify tire sizes & ply rating comply
11. Air Compressor
• Equipped with adequate capacity comply YES
• Complete with all the necessary instrumentation. comply YES
• Controlled from the control cabin. comply YES
• 1.2m3/min capacity comply YES
12. Electrical Motors
• Manufacturers Standard Electrical & hydraulic Motors’ Capacity are acceptable comply YES
13. Power Unit

Powered by diesel engine driven generator set, which has adequate power for the complete plant operations. comply Cummins Generator

• Equipped with all-electric cables, components and switchgear unit to get the control, electrical safety and
comply YES
interlocking possibilities.

13.1 Generator-Set

• Main generator-set continuous power ratingshall be adequate for the complete plant operation & shall deliver
comply Power Capacity：550KW
minimum power 550kW continues duty or manufacturer recommended capacity to run the whole plant,

Power capacity:80KW
Separate generator-set
• Separate generator-set for bitumen storage & heating (melting) system with minimum power 80kW for bitumen storage &
comply
continues duty or manufacturer recommended capacity to run the unit, heating (melting) system
80kW

• Power condition ----- ISO 3046 and /or SAE J1349 net comply ISO 3046
• Detail technical data to be as follow for both Generators comply YES
13.2 Engine
13.2.1 Engine Type

Four cycles, diesel, water cooled, turbocharged, with not less than 4 cylinders & equipped with replaceable
comply YES
cylinder sleeves.

13.2.2 Engine Performance

The engine shall be capable of continuously driving the generator set at its full rated capacity at maximum rated
comply
governed R.P.M without evidence of overloading.
13.2.3 Cooling system

Tropical type radiator, fan with protection guards, designed to cool engine at specified output in ambient
comply YES
temperatures up to 55 0C.

13.2.4 Engine Filtration System

• Heavy-duty type air filters suitable for use in dusty conditions comply YES
• A two-stage dry type air cleaner fitted with a cyclonic pre cleaner. comply YES
• Dual fuel filters with water & sediment trap. comply YES
• Hot Oil filter be heavy-duty type of two replaceable cartridges. comply YES

• All filters shall be accessible, replaceable and readily removable for quick maintenance comply YES

12.3 Alternator
Rated voltage: - 380/220
V, 50 Hz at rated rpm
• Screen protected and drip-proof 3-phase, Synchronous 220/380V, 50 cycles, Electric Energy Generator
Terminal board: - 3
Loads not less than burner capacity, self-exited, self-regulating brushless alternator with cooling system shall be comply
Phase + Neutral +
provided.
Grounding
• The insulation system shall be class H or better comply Class H
13.4 Automatic Voltage Regulator (AVR)

The AVR shall maintain the voltage within the limits of +/- 1% from no load to full load including cold or hot
comply +/-1%
variations at any power factor between 0.8 lagging and 1.0 leading and inclusive of a speed variation of 5%

13.5 Base Frame

• The complete generator-set shall be mounted as a whole, on a heavy duty fabricated and welded steel base
comply YES
frame constructed from folded channel sections.

• Incorporate specially designed crane lifting devices. comply YES

• Anti-vibration pads shall be affixed the engine/alternator feet and the base frame. comply YES
13.6 Coupling
• The engine & alternator shall be directly coupled by means of SAE flange. comply YES
13.7 Fuel Tank

The fuel tank capacity shall be adequate enough to run the generator-set for at least
comply
10 hrs continuous operation.

13.8 Control Panel

Consist of but not limited to: - comply
13.8.1 Instruments
• Voltmeters comply
• Ammeters comply
• Frequency meter comply
• Hour meters comply
• Coolant temperature gauge comply
• Oil pressure gauge comply
• Battery condition voltmeter comply
• Potentiometer comply
• Panel lamps comply
• Low fuel level alarm/gauge comply
13.8.2 Controls
• Start/stop key switch comply
• Voltmeter phase selector switch comply
• Ammeter phase selector switch comply
• Re-set switch comply
• Automatic voltage regulator switch and rheostats control comply
• Emergency stop button/switch comply
13.8.3 Shut down protection devices with indicators for: -
• High coolant temperature comply
• Low oil pressure comply
• Over speed comply
• Over load comply
13.9 Circuit Breaker

3 Pole, molded case circuit breaker including thermal over current and short circuit protection will be mounted on
the generator in a vibration isolated sheet steel box with adequate access for incoming and outgoing cables shall comply
be furnished.

13.10 Weather Proof Enclosure

The generator set shall be fully enclosed in weatherproof steel enclosure. comply YES
The enclosure shall be: - comply
• Compact design with the necessary opening & lockable-hinged doors. comply YES
• Made of robust sheet steel construction comply YES
• Equipped with lifting eyes. comply YES
14. Erection Commissioning & Performance Test

• The successful bidder is required to erect & install the complete plant at his full responsibility & expense at the
comply YES
buyer work sites and test operates to prove the plant capacity under condition prescribed.

• All mobile units of the plant should be self hydraulically liftable (Optional)

5-6 weeks if site work

• The erection work & performance test shall be within six weeks after the plant arrived at the work sites, all site
comply finished as per our
facility and resources are ready as per manufacturer recommendation
recommendation

• The erection site plan with full details shall be provided for each plant by the successful bidder before the
comply YES
shipment of the plant.

• The cost of such expenses shall be quoted separately. comply YES

N.B.
a. The erection costs shall not include the following:

• Foundation works (preparation of work site in accordance to erection site plan) but the bidder is required to
comply Site plan will be sent
send erection site plan before shipment

• Material for trial operation after installation, such as aggregates, asphalt & fuel.
Trail materials to be
Shall be supply by the buyer But, lubrication oil, greases thermal oil etc to the first fill shall be covered by the comply
supplied by the buyer
bidder.

Measuring instruments
• All equipment such as crane not greater than 30ton, dump trucks, loaders and etc. shall be supply by buyer
and Testing equipment
However, any special tools or measuring instruments or testing equipment etc which deems necessary for comply
will be provided by the
assembling and/or installation shall be provided by the bidder
supplier

• Labor cost of the buyer personnel who will be assigned as assistance. comply
b. The erection cost shall include at least the following:
• Assembling & installation of the plant offered. yes

• Pre-delivery service of the plant including all the necessary lubricant oils, greases etc. yes

• Commissioning of the plant at trouble free condition after carrying out performance test of the plant capacity,
yes
efficiency, and reliability etc.

• Adequate training: As per stated in items of the general requirement yes

• All commissioning costs. yes
• Any other cost which is not mentioned. yes
c. Language requirement:

Engineers to be sent for performing the above duties with their full responsibility shall be fluent in English.

15. Additional features and Optional

a) Additional Features

Features which are not specifically mentioned in this specification but which are a part of the manufacturer’s offer
comply
shall be stated.

b) Optional

Items considered vital by the Manufacturer/Bidder for safe, effective and efficient function of the equipment shall
comply
be quoted optionally as part of the bid.

16. Spare Parts

Detailed quotation
The bidder must furnish itemized & individually priced suggested list of recommended spare parts for the
is in another
equipment to be supplied for the first 4,000 hrs of operation.
document

a) Generator
• Two each sets of all belts employed
• One each set of engine top overhaul gasket kits
• Ten each set of fuel filter elements
• Ten each set of air cleaner elements
• Ten each set oil filter elements
• One each set of all cooling hoses
• One each set of fuel injector nozzles assy. Enough for the engine supplied.
• One each set of all gauges, meters & switches used
• Four each sets of all fuses
• One set of alternator service kit & bearings
b) Screw Air Compressor
Two each sets of all drive belt if employed
Five each sets of oil filter elements
Five each sets of air filter elements
Five each sets of Oil separator cartridge elements
One each automatic pressure switch
One each maintenance valve kit shall be included
c) Asphalt Plant
• Five each sets of all drive belts employed
• Conveyor belts, two sets from each type employed
• Two each set for sieve size 3mm, 6mm, 12.5 mm, 22mm & 26 mm
• Other manufactures recommended screen sizes with appropriate quantity
• Electric motor, one from each type employed

• About 100 meters of electric cable, which is used between powerplant and
switchgear in the control panel.

• Two set of asphalt spraying nozzles employed

• Two set of all packing & gaskets for repairing of pneumatic cylinders
• One set of mixer’s arms blades, paddles & connectors with bolts, nuts & washers

• Bearings, one set from each type employed (i.e. bearings of drying drum,
conveyors, extractors, mixers, etc.)

• Three each set of fuel filters for burner

• One set of repair kits for all the pumps employed
• 4 each set of fuses employed in the plant unit.
• One set of all pressure hoses and fittings employed
• Two set of burners’ nozzles from each type employed

• One set of spares for weighing system from each type (load cell for aggregate, filler & bitumen)

• One set of wear kit of the dryer

• One set of gasket kit for bitumen system
• One set of seals for multi-cyclone unit, if applicable
• Gauges, one set from each type employed

• Lining of the mixer, one set from each type employed with the necessary fixing bolts

• One set of all switches, photocells, contactors, etc

• One set of filters of the melting unit.
• One set of vibrators repair kit.
• Toolbox- 1
• 18’’ Monkey wrench- 1
• 5.5-32mm Double-headed stay wrench- 1 set
• 5.5-32mm Double offset ring spanner- 1 set
• 400cm³press type Grease gun- 1
• 450mm Pipe wrench- 1
• Middle cross screwdriver 1/1 pcs
• M10*1 Grease cup 45°-20 pcs
• Grease cup 45° Grease cup 45°-20pcs
• Asbestos cord-as required
• Thread seal tape-8 pcs
• Macromolecule sealant- 1 case
• Mixing Blade (12)/lining plate (8)- 24/16pcs
• Small Roller-26pcs
• Big Roller- 13pcs
• Alarm device for underfeeding-4 pcs
• Proximity switch-2 pcs
• Level indicator- 1 pc
• Hot elevator bucket-4 pcs if applicable
• Cylinder seal- as required
• Filter bags- 10 pcs
• Pulse valve-4pcs
• Pulse valve coil- 10 pcs
• Thermocouple- 5 pcs
• Button- 5 pcs
• Contactor- 4 pcs
• Bolts with nuts- as required
• Air hose-as required
• Valve- 2pcs or as required
• Bitumen pump seal-2 sets
• Burner flame detection- 1pc
• 1 set of repair kit per
• solenoid valve coil-2pcs
• Air compressor air filter-2 pcs

• Air compressor oil filter – 2pcs

Air compressor separator – 2pcs

N.B.-1: List all essential pare parts which are not included in the above list with their respective prices separately.

N.B.-2: Indicate optional items with theirrespective prices separately.

N.B.-3: Bids must respond statements of compliances with the necessary comment against each paragraph of this
specification, sign & stamp on each page. In addition to this manufacturer’s detail specification with relevant
brochures must be submitted.Plant layout (drawing) showing all components with detail leveling must also be
submitted.

PLEASE MAKE SURE THAT THIS IS THE CORRECT ISSUE BEFORE USE