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Ash Handling Systems Overview

This document provides information on ash handling systems from 29 different power plants in India from 1971-1987. The key details provided for each plant include the client, ash handling capacity per unit, initial year of operation, and a brief description of the ash collection and disposal system. Many of the early systems collected bottom ash in storage hoppers and disposed of fly ash in dry form through vacuum systems, while later systems handled both ashes together in slurry form through pumps. The largest system handled 120-150 tonnes of ash per hour.

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Sachin Kumar
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0% found this document useful (0 votes)
323 views64 pages

Ash Handling Systems Overview

This document provides information on ash handling systems from 29 different power plants in India from 1971-1987. The key details provided for each plant include the client, ash handling capacity per unit, initial year of operation, and a brief description of the ash collection and disposal system. Many of the early systems collected bottom ash in storage hoppers and disposed of fly ash in dry form through vacuum systems, while later systems handled both ashes together in slurry form through pumps. The largest system handled 120-150 tonnes of ash per hour.

Uploaded by

Sachin Kumar
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
Available Formats
Download as PDF, TXT or read online on Scribd
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ASH HANDLING JOBS

Sl.
No.

Plant

Client

Ash
Handling
System
Each
Unit
Capacity

Year of
Initial
Operati
on

Brief Description of
System

1.

Indraprastha Power
Station Unit # 5
1x62.5 MW

Delhi Electric
Supply
Undertaking

40TPH

1971

Bottom Ash collected in
pit and disposed off with
Jet Pump. Dry Fly Ash
Evacuation System.

2.

New Power House
No.4 2x30 MW
Units, Jamshedpur

Tata Iron & Steel
Company

30 TPH

1973

Storage type bottom ash
hopper. Ash is pumped
through jet pump into
Hydrobins. Fly ash is
evacuated in dry form
and stored in silo using
only vacuum system.

3.

Chandrapura
Thermal Power
Station Units # 4 & 5
2x120 MW

Damodar Valley
Corporation

60 TPH

1974

Storage type bottom ash
hopper. Dry fly ash is
evacuated by Vacuum
system. Bottom ash and
fly ash slurries are
pumped together using
CD-135 ash slurry
pumps.

4.

Guru Nanak Dev
Thermal Plant
Units # 1 & 2 - 2x110
MW

Punjab State
Electricity Board

60/80
TPH

1974

Storage type bottom ash
hopper. B.A. slurry is
jetted into common slurry
sump using hydroejector.
Fly ash is evacuated in
dry form and disposed off
in wet slurry form using
D-135 ash slurry pumps.
Alternatively dry fly ash
can be collected in a silo
by using vacuum-cum-
pressure transfer system

Sl.
No.

Plant

Client

Ash
Handling
System
Each
Unit
Capacity

Year of
Initial
Operati
on

Brief Description of
System

6.

Patratu Thermal
Power Station
Units # 7& 8 2x110
MW

Bihar State
Electricity Board

60 TPH

1976

Both fly ash and bottom
ash are Continuously
collected in wet form and
ash slurry is conveyed to
disposal area by using D-
135 hydroseal ash slurry
pumps.

7.

Gandhinagar TP
Station Units # 1 & 2
2x120 MW

Gujarat
Electricity
Board

60 TPH

1977

System is similar to Ukai
Units # 1& 2 at S. No. 5



Sl.
No.

Plant

Client

Ash
Handling
System
Each
Unit
Capacity

Year of
Initial
Operati
on

Brief Description of
System

5.

Ukai Thermal Power
Station Units # 1 & 2
- 2x120 MW

Gujarat
Electricity
Board

60/70
TPH

1975

Fly ash is evacuated in
dry form and mixed with
water in an elevated
tank. Ashslurry is
disposed to disposal
area directly by gravity.
Bottom ash is collected
in a storage type hopper
and disposed directly to
ash dump area using
Hydroejector.


Sl.
No.

Plant

Client

Ash
Handling
System
Each
Unit
Capacity

Year of
Initial
Operati
on

Brief Description of
System

8.

Nangal Expansion
Project 3x81 TPH
Steam generators

Fertilizer
Corporation of
India Ltd.

35 TPH

1976

Storage type bottom ash
hopper. BA slurry is
jetted into a common
slurry sump using
hydroejector. Fly ash is
evacuated by vacuum
system in dry form mixed
with water in a tank and
disposed off in wet slurry
form by CD-135 ash
slurry pump. This project
has been secured
against Global
competition.

9.







10.

Obra Thermal Power
Station, Units# 9,10
& 11 - 3x200 MW
(Stage-II)



Obra Thermal Power
Station Units # 12 &
13 -- 2x200 MW
(Stage-III)

U P State
Electricity Board






-do-

120/120
TPH






120/120
TPH

1978/80







1981/82

The system is similar to
the system described
under S.No.4 Guru
Nanak Dev Thermal
Plant Units # 1&2. For
each unit 120-150 tonnes
of ash is handled per
hour. This is the largest
system in India and
ranks among the largest
in the world.

11.

Ukai Thermal Power
Station, Units # 3 &
4 2x200 MW

Gujarat
Electricity Board

60/80
TPH

1979

Similar to S.No.5

12.

Haldia Fertilizer
Project Units # 1, 2 &
3 3x30 MW

Fertilizer
Corporation of
India

15/20
TPH

1979

Ash is directly mixed with
water under the hopper
and disposed in slurry
form through a trench


Sl.
No.

Plant

Client

Ash
Handling
System
Each
Unit
Capacity

Year of
Initial
Operati
on

Brief Description of
System

13.

3x75 TPH Steam
Generator Units at
Nagda Project

GRASIM Limited

10/15
TPH

1977

Storage type bottom ash
hoppers. Bottom ash is
pumped into a hydrobin.
Fly ash is evacuated in
dry form using steam
ejector and stored in silo
using vacuum system.

14.

Kothagudem
Thermal Power
Station Units # 7& 8
2x110 MW

Andhra Pradesh
State Electricity
Board

60/80
TPH

1977

The system is similar to
the system described
under S. No. 4 GNDTP
Units # 1&2 without the
provision for dry fly ash
collection in silo.

15.

Sindri Modernization
Project - 3x180 TPH
Steam Generator
Units

Fertilizer
Corporation of
India

40 TPH

1977

The system is similar to
Nangal Expansion
Project under S.No.8.

16.

Sabarmati Thermal
Power Station Unit
D 1x110 MW

Ahmedabad
Electri-city
Company
Limited

60/90
TPH

1979

The system is similar to
Nangal Expansion
Project except D-135 ash
slurry pumps are
installed. Additional
facility of dry fly ash
collection in silo through
vacuum system is also
provided.

17.

Koradi Thermal
Power Station Unit #
5 1x200 MW

Maharashtra
State Electricity
Board

60 TPH
(BA)

1979

Bottom ash is collected
in a storage type hopper
and disposed off by
hydro-ejector to an
elevated slurry trough.


Sl.
No.

Plant

Client

Ash
Handling
System
Each
Unit
Capacity

Year of
Initial
Operati
on

Brief Description of
System

18.

Chandrapura
Thermal Power
Station Unit # 6 -
1x120 MW

Damodar Valley
Corporation

60/80
TPH

1979

The system is similar to
Chandrapura Units # 4 &
5 under S. No. 3.

19.

Phulpur Fertilizer
Project, 3x180 TPH
Steam Generator

IFFCO

50 TPH

1979/80/
81

The system is similar to
Ukai Units # 1 & 2 under
S. No.5.

20.

Nasik Thermal Power
Station Units 3x200
MW

Maharashtra
State Electricity
Board

2x50
TPH
each Unit

1979

Bottom ash system is
similar to GNDTP under
S.No.4. Dry fly ash
handling system by
utilisation of air slides,
water mixed in the
hydroejector and slurry
conveyed up to common
ash slurry sump. Ash
slurry is pumped by D-
135 ash slurry pump.

21.

Kerala Newsprint
Project 3x60 TPH
Steam Generator
Units

Hindustan Paper
Corporation Ltd.

30 TPH

1982

The system is similar to
TISCO Units under
S.No.2 except the
Hydrovactor is mounted
on recirculation water
sump/settling Tank.

22.

Parli Thermal Power
Station Unit # 3 - 210
MW

Bharat Heavy
Electricals Ltd.

2x50
TPH

1980

The system is similar to
Nasik Units under S.No.
20.

23.

Talcher Thermal
Power Station Units
# 5 & 6 2x110 MW

Orissa State
Electricity Board

60/80
TPH

1982

The system is similar to
Kothagudem Units under
Sl.No. 14 and also
includes wet disposal of
coal mill rejects.


Sl.
No.

Plant

Client

Ash
Handling
System
Each
Unit
Capacity

Year of
Initial
Operati
on

Brief Description of
System

24.

Vijayawada Thermal
Power Station Units
# 1&2 - 2x210 MW

Andhra Pradesh
State Electricity
Board

130 TPH

1979/80

The bottom ash system
is similar to Kothagudem
Units under S.No.14. The
fly ash system is similar
to Patratu Units under
S.No. 6 with an
additional facility of dry
fly ash evacuation and
storage in silo using
vacuum system. Frame
D-135 ash slurry pumps
are installed.

25.

Bandel Thermal
Power Station Unit #
1 - 210 MW

West Bengal
State Electricity
Board

60/80
TPH

1983

The system is similar to
Ukai TPS Units under
S.No.5.

26.

Bhusawal Thermal
Power Station Units
1x210 MW & 1x62.5
MW

Maharashtra
State Electricity
Board

2x50
TPH

1980

The system is similar to
Nasik Units under
S.No.20 except CD-135
ash slurry pumps are
installed.

27.

Indraprastha Thermal
Power Station Unit #
1 - 37.5 MW

Delhi Electric
Supply
Undertaking

40 TPH

1982

Dry fly ash vacuum
system. Ash disposal
booster pumps common
for all five (5) units.

28.

Yallourn, C,D & E
Power Stations,
4x50 MW & 2x120
MW Units

State Electricity
Commission of
Victoria,
Australia

20 TPH

1981

Modification Ash
Disposal System
(continuous removal)
through ash disposal
pumps.

29.

Bokaro Steel Plant
Captive Power Plant
Units # 6,7 & 8 -
3x60 MW

Steel Authority of
India Ltd. BSP

-

1985

Three (3) storage type
bottom ash hoppers each
with one (1) clinker
grinder.


Plant

Client

Ash
Handling
System
Each
Unit
Capacity

Year of
Initial
Operati
on

Brief Description of
System

Durgapur Steel Plant
- Captive Power
Plant Units # 1&2
2x60 MW

Steel Authority of
India Limited -
DSP

-

1985/
86/87

Similar to Patratu TP
Station Units # 7& 8
under S.No. 6. CD-135
ash slurry pumps are
installed.

Kota Thermal Power
Station Units # 1& 2
2x110 MW

Rajasthan State
Electricity Board

60/80
TPH

1986/87

The system is similar to
Talcher Units under
S.No. 23

Renusagar Thermal
Power Station Expansion
Stage-I -
2x60/ 67.5 MW &
1x275 TPH

Renusagar
Power Company
Limited

75/150
TPH

1981/82

The system is similar to
Kothagudem Units under
S. No. 14. Ash removal
from all three units is
simultaneous.

Patratu Thermal
Power Station Units
# 9 &10 - 2x110 MW

Bihar State
Electricity Board

60/80
TPH

1984

The system is similar to
Talcher Units under
S.No.23

Sindri Extn. Project, Sindri
Power House Unit # 8

FCI - Sindri
(Through BHEL)

16 TPH

1982

One (1) storage type
bottom ash hopper with
one clinker grinder. Fly
Ash System
(Hydrovactor).

Parichha Thermal
Power Station Units
# 1&2 - 2x110 MW

U P State
Electricity Board

80/100
TPH

1984

The system is similar to
Talcher Units under
S.No.23. Frame D-85
ash slurry pumps are
installed.


Sl.
No.

Plant

Client

Ash
Handling
System
Each
Unit
Capacity

Year of
Initial
Operati
on

Brief Description of
System

36.

Wanakbori Thermal
Power Station Units
# 1,2&3 3x210 MW

Gujarat
Electricity
Board

60/150
TPH

1982

Storage type bottom ash
hopper. Ash is jetted into
common slurry sump
using hydroejector. Fly
ash is evacuated in dry
form and disposed off in
wet slurry form by using
slurry pumps (CD-135).

37.

Singrauli Super
Thermal Power
Project Stage-I
Phase-II, Units # 4 &
5 2x200 MW

National
Thermal
Power
Corporation

2x75
TPH

1984

The system is similar to
Patratu Units under
S.No.6. For continuous
removal of B.A. below
boiler, scraper conveyors
are provided.

38.

Expansion of
Trombay
Generating Station
500 MW Unit

Tata Electric
Companies,
Mombay

120/240
TPH

1984/85

Bottom ash is collected
in a Storage type hopper
and disposed directly
using a hydro-ejector. Fly
ash is evacuated in dry
form and disposed off to
disposal area directly by
gravity. SEA WATER is
used for Ash Handling
System.

39.

Koradi Thermal
Power Station Units
# 6 & 7 - 2x210 MW

Maharashtra
State Electricity
Board

200 TPH
(Bottom
Ash)

1982

The system is similar to
Koradi Unit # 5 under
S.No. 17 except the
slurry is conveyed upto
ash disposal area
through ash slurry pumps
& disposal pipelines.


Sl.
No.

Plant

Client

Ash
Handling
System
Each
Unit
Capacity

Year of
Initial
Operati
on

Brief Description of
System

40.

Chandrapur Thermal
Power Station
Units # 1&2 - 2x210
MW

Maharashtra
State Electricity
Board

100/140
TPH

1984

The bottom ash system
is similar to Koradi Unit #
5, under S. No. 17, fly
ash is handled through
feeder Ejector
discharging ash slurry
into sluice way and
conveyed further upto a
slurry tank. Ash slurry is
pumped through ash
slurry pumps frame D-
85D (Double casing).

41.

Muzaffarpur Thermal
Power Station,
Units#1&2 2x110
MW

BHEL/BSEB

70/80
TPH

1985/86

The system is similar to
Talcher units under
S.No.23. D-85 Ash slurry
pumps are installed.

42.

Raichur Thermal
Power Station -
2x210 MW

Karnataka
Power
Corporation
Limited

90/150
TPH

1985/86

The system is similar to
Wanakbori units under
S.No.36.

43.

Muzaffarpur Thermal
Power Station 2x110
MW Units (Coal Mill
Rejects Handling
System)

BHEL/BSEB

16 TPH

1985/86

The system is similar to
Kota Stage-I under
S.No.31. (Mill Rejects
Handling System only)

44.

Durgapur Thermal
Power Station Unit #
6 110 MW

Durgapur
Projects Limited

60 TPH

1985

The system is similar to
Ukai Units # 1&2 under
S.No.5.

45.

Ukai Thermal Power
Station Unit # 5 210
MW

Gujarat
Electricity Board

60/90
TPH

1985

The system is similar to
Ukai Units # 3&4 under
S. No. 11.


Sl.
No.

Plant

Client

Ash
Handling
System
Each
Unit
Capacity

Year of
Initial
Operati
on

Brief Description of
System

46.

Ramagundam Super
Thermal Power
Project Stage-I, Units
# 1,2&3 3x200 MW

National
Thermal
Power
Corporation

120/174
TPH

1983/

84/ 85

The system is similar to
Vijayawada units under
S.No. 24 but without the
facility of dry fly ash
collection in silo.

47.

Obra TPS Booster
Station Units # 9 to
13 - 5x200 MW

U P State
Electricity Board

-

1991

Extension of ash
disposal line and
replacement of 3rd stage
ash disposal pumps (D-
85). Completion delayed
due to non-availability of
working fronts.

48.

Neyveli Lignite
Corpn. Second
Thermal Power
Station, 3x210 MW
Units

Neyveli Lignite
Corporation

150 TPH

1985/
86/87

The system is similar to
Singrauli STPP at No. 37
except bottom ash
hopper supplied by the
Boiler manufacturer.

49.

Ropar Thermal
Power Station Units #
1&2 - 2x210 MW

Punjab State
Electricity Board

150 TPH

1984/85

The system is similar to
Singrauli STPP at
S.No.37.

50.

Wanakbori Thermal
Power Station, Units
# 4, 5 & 6 3x210
MW (Stage-II)

Gujarat
Electricity
Board

90/150
TPH

1986/87

The system is identical to
Wanakbori TP Station,
Stage-I at S.No.36.

51.

Sabarmati Thermal
Power Station Unit-E,
1x110 MW
Modification of Unit #
D

Ahmedabad
Electricity
Company
Limited

60/80
TPH

1984/85

The system is similar to
GNDTP at S.No.4. Unit
#D also modified to
minimize the water
requirement. Frame D-85
ash slurry pumps
Installed.


Sl.
No.

Plant

Client

Ash
Handling
System
Each
Unit
Capacity

Year of
Initial
Operati
on

Brief Description of
System

52.

Panipat Thermal
Power Station Extn.
Stage-III 1x210 MW
Unit

Haryana State
Electricity Board

80/160T
PH

1989

The system is similar to
GNDTP units under
S.No.4.

53.

Durgapur Thermal
Power Station Units #
1&2 2x75 MW Ash
Handling Plant

Damodar Valley
Corporation

35 TPH

1991

Additional collection and
Pneumatic transportation
system for new ESP fly
ash hoppers - (Work
postponed by client).

54.

Sikka Thermal Power
Station Unit # 1 - 120
MW Ash
Handling System

Gujarat
Electricity
Board

50/60
TPH

1988

The system is similar to
Nangal Expansion
Project at S.No.8.

55.

Satpura Thermal
Power Station
5x62.5 MW Units -
Modifications

Madhya
Pradesh
Electricity Board

80 TPH

1985/86

Continuous collection
and wet transportation of
fly ash slurry from ESP to
ash slurry sump for
disposal.

56.

Damanjodi - Steam
and Power
Generation Plant,
Orissa

NALCO

70
TPH

1986/
87

Continuous collection
of bottom and
fly ash and wet
transportation of ash
slurry from ESP to ash
slurry sump.


Sl. No.

Plant

Client

Ash Handling
System Each
Unit
Capacity

Year of
Initial
Operati on

Brief
Descri
ption of
System

57.

Barauni
Captive
Power Plant,
Bihar 2x70
TPH Ash
Handling
System

Hindustan
Fertilizer
Corpn.
Limited

48/40 TPH

1987/88

Bottom ash is
collected in a
storage type
bottom ash
hopper and is
disposed off
directly
through
pipeline using
jet pump. Fly
ash is
pneumatically
extracted and
the slurry
directly
disposed off
by gravity.
Similar to
Phulphur
Project at
S.No.19.

58.

Visakhapatna
m Steel
Project, A.P.;
5x330 TPH
Boilers Ash
Handling
Plant

Rashtriya
Ispat
Nigam Limited

120/125 TPH

1989

The system is
similar to
Ramagundam
STPP under
S.No. 46.
Two units
already
commissioned
.


Sl.
No.

Plant

Client

Ash Handling
System Each
Unit
Capacity

Year of
Initial
Operati on

Brief
Descri
ption of
System

59.

Panki Thermal
Power
Station - 2x32
MW Units
(Modification of Ash
Disposal System)

U P State
Electricity
Board

30 TPH

1990

Collection and
wet
transportation
of fly ash
slurry from
silos to Ash
Dump Area.

60.

Chandrapur TP
Station Units #1&2
Modification of Fly
Ash Handling System
(MSEB)

Associated
Cement
Companies

-

1985

Modification of
existing
controls and
interlocks to
enable ACC
collect dry fly
ash from the
ESP hoppers.


Sl.
No.

Plant

Client

Ash
Handling
System
Each
Unit
Capacity

Year of
Initial
Operati
on

Brief Description of
System

61.

Khammam Chemical
Refinery, Captive
Power Plant
3x265 TPH Steam
Generators Ash
Handling System

Tata Projects
Ltd. Deptt.
of Atomic
Energy

65/22 TPH
each unit

1989/ 90/91

Storage type
bottom ash
hopper.
Bottom ash is
conveyed to
the sump by
a
hydroejector.
Fly ash mixed
with water to
form slurry
under the
hoppers and
is con- veyed
to FA sump
through sluice
way trenches
continuously.
Both BA and
FA slurries are
pumped
separately to
the disposal
area using
CD-135
hydroseal ash
slurry pumps.
Project
delayed due
to supply of
Boilers by
ABL,
Durgapur.


Sl. No.

Plant

Client

Ash Handling
System Each
Unit
Capacity

Year of
Initial
Operati on

Brief
Descri
ption of
System

62.

Guru Nanak
Dev Thermal
Plant,
Bhatinda,
Augmentation
of Fly Ash
System for
New ESPs of
Unit # 4
(1x110 MW)

Punjab State
Electricity
Board

85 TPH

1985

Fly ash
evacuated in
dry form by
vacuum and is
mixed with
water to form
slurry in an
elevated
collector tank.
Ash slurry is
conveyed by
gravity to
slurry sump
and pumped
upto ash
disposal area
with the
existing
pumping
system.

63.

Gandhinagar
Thermal
Power Station
Augmen-
tation of fly
ash system
for New ESPs
of Units # 1&2

Gujarat
Electricity
Board

80 TPH

1987

Fly ash
collected in
dry form by
vacuum is
mixed with
water to form
slurry in an
elevated air
separator
tank. Ash
slurry
conveyed by
gravity to ash
disposal area.


Sl.
No.

Plant

Client

Ash Handling
System Each
Unit
Capacity

Year of
Initial
Operati on

Brief
Descri
ption of
System

64.

Ramagundam
Super Thermal
Power Station
Stage-II,
3x500 MW Units 4,
5 & 6

National
Thermal Power
Corporation

120/500 TPH

1988/1989

Similar to
Chandrapur
Units under
S.No. 40
Storage type
bottom ash
hopper.
Bottom ash
transported to
common
bottom ash
slurry sump
once per shift
for disposal
with slurry
pumps. Fly
ash is
evacuated
with feeder
ejectors and
slurry
disposed with
fly ash slurry
sump. BA &
FA slurries
pumped
independently.
Programmabl
e Logic
Controllers
are used.


Sl.
No.

Plant

Client

Ash Handling
System
Each
Unit
Capacity

Year of Initial
Operati on

Brief
Descri
ption of
System

65.

Kothagudem
Thermal Power
Station
A
1x60 MW Unit
# 3 - APSEB

Voltas Limited

210 TPH

1988

Renovation of
fly ash
system. Fly
ash is
evacuated
with feeder
ejectors and
resultant
slurry
transported to
existing slurry
sump for
disposal.

66.

Kothagudem
Thermal Power
Station
A 1x60
MW Unit # 4
APSEB

Andhra
Pradesh Heavy
Machinery &
Engineering
Ltd.

210TPH

1990

Renovation of
fly ash
system. Fly
ash is
evacuated
with feeder
ejectors and
resultant
slurry
transported to
existing slurry
sump for
disposal.


Sl.
No.

Plant

Client

Ash Handling
System Each
Unit
Capacity

Year of
Initial
Operati on

Brief
Descri
ption of
System

67.

Vijayawada
Thermal Power
Station, Stage-II,
2x210 MW, Units #
3&4

Andhra
Pradesh State
Elect. Board

150/174 TPH

1989/90

The overall
ash handling
system is
similar to
Vijaya-wada
Stage-I, (Units
# 1&2) under
S.No. 24,
except BA
hopper has
scraper
conveyor. The
system
includes com-
plete ash
disposal
piping. Frame
D-85D ash
slurry pumps
provided.

68.

Guru Nanak Dev
Thermal Plant,
Bhatinda, Augmen-
tation of Fly Ash
System for New
ESPs of Unit # 3
(1x110 MW)

Punjab State
Electricity Board

85 TPH

1987

The system is
similar to the
system
described
under S.No.
62 Guru
Nanak Dev
Thermal Plant
Bhatinda, Unit
# 4.


Sl.
No.

Plant

Client

Ash Handling
System Each
Unit
Capacity

Year of
Initial
Operati on

Brief
Descri
ption of
System

69.

Renusagar Thermal
Power Station
Modifi- cation of
ash handling system
for new ESPs of Unit
# 3, 4 &
5

Renusagar
Power
Company
Limited

150 TPH

1987/88

The system is
similar to the
system
described
under S.No.
62 Guru
Nanak Dev
Thermal
Plant,
Bhatinda,
Unit # 4.

70.

Ropar Thermal
Power
Station Stage- II,
2x210 MW
Units # 3&4

Punjab State
Electricity Board

140 TPH

1988/89

Storage type
bottom ash
hopper.
Continuous
handling of fly
ash in wet
form. Bottom
ash and fly
ash slurries
pumped to
disposal area
by using
Frame CD-
135 hydroseal
ash slurry
pumps.

71.

Indraprastha Power
Station, Units
# 2,3&4,
3x67.5 MW

Delhi Electric
Supply
Undertaking

80 TPH

1987/88

Augmentation
of Fly ash
System for
New ESPs
using vacuum
system.


Sl.
No.

Plant

Client

Ash
Handling
System
Each
Unit
Capacity

Year of
Initial
Operati
on

Brief Description of
System

72.

Kothagudem
Thermal Power
Station
B Units #
5& 6

Andhra Pradesh
State Electricity
Board

100
TPH

1
9
8
8

Augmentation of Fly
ash system
for New
ESPs using
vacuum system
with water
re- circulation
similar to
Kothagudem Units # 7&
8 under S.No.
14 - Unit No. 6
commissioned
.

73.

Talcher
Thermal Power
Station,
Rehabilitation
Work Stage-I,
4x62.5 MW Units

Orissa State
Electricity
Board

80/160
TPH

1988/
89

Modification of existing
bottom ash system
and
augmentation of the fly
ash
handling system for the
New ESPs using
vacuum
upto air separator
tank. The bottom
ash
and fly ash slurries
are
pumped by
Frame D-85 hydroseal
slurry pumps
upto disposal area.


Sl.
No.

Plant

Client

Ash
Handling
System
Each
Unit
Capacity

Year of
Initial
Operati
on

Brief Description of
System

74.

Ramagundam
Thermal Power
Station
B 1x62.5 MW Unit
Fly Ash Handling
System for New ESP

Andhra Pradesh
State Electricity
Board

90
TPH

1988

Augmentation of Fly
ash handling system
for the New ESPs by
vacuum system upto
Collector tank and
disposal of
slurry by existing
slurry disposal system
similar to
Kothagudem
Units # 7 & 8
Under S. No.
14.

75.

Wadi Cement Works
Captive Power Plant
1x25 MW Unit

A.C.C.

60
TPH

1987

Rectification and
augmentation of bottom
ash system. Storage
type bottom
ash hopper;
slurry jetted to
a hydrobin
by hydro-ejector
through 200
NB pipeline.


Sl.
No.

Plant

Client

Ash
Handling
System
Each
Unit
Capacity

Year of
Initial
Operati
on

Brief Description of
System

76.

Guru Nanak Dev
Thermal Plant,
Bhatinda, Units #
1& 2,
2x110 MW

Punjab State
Electricity Board

80
TPH

1987/
88

This system is similar to
the system described
under S. No.
62, GNDTP Unit# 4.
Servicing dry fly ash
collection by vacuum-
cum- pressure system is
also included in scope.

77.

Mettur Thermal
Power
Station Unit
# 4 210 MW

Tamil Nadu
Electricity
Board

110
TPH

1990

Bottom ash and fly
ash is collected and
disposed off in slurry form
continuously upto
disposal area using
hydroseal ash
slurrypump frame D85D.


Sl.
No.

Plant

Client

Ash Handling
System Each
Unit
Capacity

Year of
Initial
Operati on

Brief
Descri
ption of
System

78.

Durgapur Projects
Power Station, Units
# 1 & 2
(2x30 MW)
Renovation
of Ash
Handling
System

Durgapur
Projects Ltd.

18 TPH

1990

Both bottom
ash and fly
ash removal
in dry state
pneuma-tically
by vacuum
produced by
hydrovactor
and conveyed
upto a silo.
Dry ash to be
unloaded into
trucks thru
hydromix dust
conditioner for
further
disposal.


Sl.
No.

Plant

Client

Ash Handling
System Each
Unit
Capacity

Year of
Initial
Operati
on

Brief Description of
System

79.

Sabarmati Thermal
Power Station, Unit
F - 110 MW Ash
Handling
System

Ahmedab
ad
Electricity
Company
Limited

80/84 TPH

1989

Bottom ash from
storage type
hopper jetted
into common
slurry sump by
hydroejector. Fly ash
is removed
by vacuum
system in dry form
upto elevated
collector tanks where
it is mixed
with water
and discharged
into slurry sump.
Bottom and fly
ash slurries
pumped to disposal
area by CD-135
hydroseal pumps.


Sl.
No.

Plant

Client

Ash
Handling
System
Each
Unit
Capacity

Year of
Initial
Operati
on

Brief Description of
System

80.

Badarpur Thermal
Power Station Stage-
I,
3x100 MW Ash
Handling
System
Renovation and
Modification (New
ESP)

National
Thermal Power
Corporation

120
TPH

1989

Fly ash is evacuated
with Feeder
Ejector and
discharged
into the existing
slurry
sump through hydro
sluicing.
Programmabl
e Logic
Controllers
are used. One unit
commissioned
.


Sl.
No.

Plant

Client

Ash
Handling
System
Each
Unit
Capacity

Year of
Initial
Operati
on

Brief Description of
System

81.

Ramagundam
Unit
Fluidized Bed
Combustion
Boiler Project
- 1x85 TPH Ash
Handling System

The Fertilizer
Corpn. of India
Limited

68/48
TPH

1989

Bottom ash from
storage type
hopper is jetted into the
common
slurry sump by
hydroejector. Fly ash
is removed
by vacuum system
in dry form upto the
elevated Air Separator
Tank where it is mixed
with water and
discharged
into the slurry sump.
Bottom and fly
ash slurries
are pumped
to disposal
area by CD-135
hydroseal pumps.
(Ash Handling
System of the FBC
Boiler includes
the integration
with that of the
existing service boilers).


Sl.
No.

Plant

Client

Ash
Handling
System
Each
Unit
Capacity

Year of
Initial
Operati
on

Brief Description of
System

82.

Ennore Thermal
Power Station
Units
# 1 to 5 Integrated
Ash
Handling
System

Tamil Nadu
Electricity
Board

-

1988/
89

Fly ash is collected
and disposed off in slurry
form continuously upto
the disposal area using
CD-135 hydroseal ash
slurry pumps (Existing
facilities to be used for
Units # 1 to 4). Three(3)
units commissioned
.


Sl.
No.

Plant

Client

Ash
Handling
System
Each
Unit
Capacity

Year of
Initial
Operati
on

Brief Description of
System

83.

Rajghat
Power House
1x15 MW Ash
Handling
System

Delhi Electric
Supply
Undertaking

30/24
TPH

1991

Provision of storage
type water impounded
Bottom ash system in
place of existing
continuous type
scraper conveyor
system.Fly ash is
removed by vacuum
system using
hydrovactor and fly
ash slurry directly
disposed to Disposal
area by gravity.


Sl.
No.

Plant

Client

Ash
Handling
System
Each
Unit
Capacity

Year of
Initial
Operati
on

Brief Description of
System

84.

Patratu
Thermal
Power Station
Units # 1 to 6,
7& 8 Fly Ash
Handling
System

Bihar State
Electricity
Board

160 T/H (1 to 6)
(80 TPH (7& 8)

Unit-3 1993 Unit-5
1993 Unit-7
1994 Unit-8 1994

Fly ash is
collected by
vacuum
system (Re-
circulation
water type)
and disposed
off in slurry
form
intermittently
upto disposal
area using
existing ash
disposal
pumps &
pipeline.

85.

Barauni
Thermal
Power Station
- Units 4&5
Fly Ash
Handling
System

Bihar State
Electricity
Board

80TPH

1997

Fly ash is
collected by
vacuum
system (Re-
circulation
water type)
and disposed
off in slurry
form
intermittently
upto disposal
area using
CD-135
hydroseal ash
slurry pumps.


Sl.
No.

Plant

Client

Ash
Handling
System
Each
Unit
Capacity

Year of
Initial
Operati
on

Brief Description of
System

86.

Farakka
Super
Thermal
Power
Project,
Stage-II Units
# 4&5 (2x500
MW) Ash
Handling
System

National
Thermal
Power
Corporation,
Limited

180/590 TPH

1993/1994

Similar to
Ramagundam
Stage-II
(3x500 MW)
Units # 4, 5 &
6 under Sl.No.
64. Bottom
Ash; storage
type hopper,
deashing by
jet pumps.
ESP and AHP
Fly Ash;
evacuated by
Feeder
Ejectors.
Coarse ash
(Eco ash)
system is
similar to
bottom
ash system.
BA & FA
slurries
pumped
independently
(FA slurry
pumps 1700
M
3
/hr. & BA
slurry pumps
1300 M
3
/Hr).
Programmabl
e Logic
Controller is
used.


Sl.
No.

Plant

Client

Ash
Handling
System
Each
Unit
Capacity

Year of
Initial
Operati
on

Brief Description of
System

87.

Tuticorin
Thermal
Power
Station
Stage-III,
Extn. Units #
4 & 5 Ash
Handling
System

Tamil Nadu
Electricity
Board

140 TPH

1991/1992

Similar to
Mettur TPS
Unit # 4
under S.No.
77 except Ash
slurry is
disposed in
Basalt line
pipe.

88.

Badarpur
Thermal
Power Station
Stage-II Ash
Disposal
System

National
Thermal
Power
Corporation
Ltd.

-

1994

-


Sl.
No.

Plant

Client

Ash
Handling
System
Each
Unit
Capacity

Year of
Initial
Operati
on

Brief Description of
System

89.

TVNL -
Tenughat
Thermal
Power Station
Stage-I
2x210 MW
Units # 1&2
Ash Handling
Plant

Bharat Heavy
Electricals
Ltd.

120 TPH

1997

Storage type
bottom ash
hopper. BA
slurry is jetted
into common
slurry sump
using
Hydroejector.
Fly ash is
evacuated in
dry form by
vacuum and
mixed with
water in an
elevated Air
separator tank
(once through
cycle) and the
resultant
slurry
conveyed by
gravity up to
common
slurry sump.
Bottom and fly
ash slurry
further
pumped to
disposal area
using frame
CD-135
Hydro-seal
Pumps.


Sl.
No.

Plant

Client

Ash
Handling
System
Each
Unit
Capacity

Year of
Initial
Operati
on

Brief Description of
System

90.

Panki Thermal
Power
Station,
Stage-II, Units
# 3&4 (2x110
MW)
- Modification
of Ash
Disposal
System

U P State
Electricity
Board

25/30 TPH

1993

Bottom Ash
System
modified to
transport the
ash slurry by
Hydroejector
upto new ash
slurry sump.
F.A. in form of
slurry
discharged
into ash sluice
trench and
transported by
gravity upto
new ash slurry
sump. From
the ash slurry
sump, B.A.
and F.A.
slurries are
pumped upto
the ash
disposal area
using CD-135,
hydroseal ash
slurry pumps.


Sl.
No.

Plant

Client

Ash
Handling
System
Each
Unit
Capacity

Year of
Initial
Operati
on

Brief Description of
System

91.

Raichur
Thermal
Power Station
Stage-II, Unit
# 3 (1x210
MW) - Ash
Handling
System

Karnataka
Power
Corporation
Ltd.

120/120 TPH

1991

Storage type
Bottom Ash
Hopper. B.A.
slurry is jetted
into common
slurry sump
using
hydroejector.
Fly ash is
evacuated in
dry form,
mixed with
water in an
elevated
collector tank
and conveyed
as slurry upto
common
slurry sump.
BA and FA
slurry sump
pumped upto
disposal area
by CD-135
hydroseal
pumps.

92.

Kahalgaon
STPP Stage-I
(4x200 MW) -
Ash Handling
System

National
Thermal
Power
Corporation,
Ltd.

-

Unit # 1 1993 Unit
# 2 1994 Unit # 3
1995 Unit # 4
1996

Fly Ash &
Bottom Ash
Disposal
System.

Sl.
No.

Plant

Client

Ash
Handling
System
Each
Unit
Capacity

Year of
Initial
Operati
on

Brief Description of
System

93.

National
Capital
Thermal
Power Project
Dadri
(4x210 MW) -
Ash
Handling
System

National
Thermal
Power
Corporation

2x60 T/H (F.A)
2x60 T/H (B.A)

Unit # 1 1992 Unit
# 2 1993 Unit # 3
1994 Unit # 4 -
1995

The largest
ash handling
plant in Asia,
having long
distance
Vacuum-cum-
pressure
conveying
system for fly
ash. Storage
type bottom
ash hopper.
BA slurry is
jetted through
hydro-ejector
to hydrobins
de-watering
bins situated
at a distance
of approx.
One Km.
From there
dry ash is
transported to
disposal area
through
conveyors. Fly
ash from
various
hoppers is
conveyed to
transfer tanks
by vacuum
using vacuum
pumps and is
further
transported to
ash silos

































































situated at a


Sl.
No.

Plant

Client

Ash
Handling
System
Each
Unit
Capacity

Year of
Initial
Operati
on

Brief Description of
System

95.

Ukai Thermal
Power Station
and Magdalla
Dry Fly Ash
System

Narmada
Cement
Company Ltd.

2x40 TPH
(FA)

1991

Dry fly ash
collection in a
silo.


Sl.
No.

Plant

Client

Ash
Handling
System
Each
Unit
Capacity

Year of
Initial
Operati
on

Brief Description of
System

96.

Ramagundam
Unit Steam
Generating
Unit Boilers 1,
2 & 3

The Fertilizer
Corporation of
India Limited

40 TPH (FA)

1992

Fly ash is
handled by
vacuum
system in dry
form upto
existing air
separator
tank where it
is mixed with
water and
discharged
with slurry
sump. This
is integrated
with existing
system at Sl.
No. 81
above.

97.

Chandrapura
Thermal
Power Station
Unit # 1 Ash
Handling
System

Damodar
Valley
Corporation

40 TPH

1991

Fly Ash is
evacuated in
dry form and
transported to
ash slurry
sump after
mixing with
water in
wetting head
and collector
tank.


Sl.
No.

Plant

Client

Ash
Handling
System
Each
Unit
Capacity

Year of
Initial
Operati
on

Brief Description of
System

98.

Nagda Steam
Generators

GRASIM Ltd.

20 TPH

1992

Bottom Ash is
collected in
water
impounded
hopper and
disposed
through
hydro-ejector
upto hydrobin.
Fly ash is
evacuated in
dry form &
collected in
ash silo.

99.

Faridabad
Thermal
Power Station

Haryana State
Electricity
Board

2x60 TPH

1994

Modification of
existing
flushing
system below
ESP hoppers.

100.

Wanakbori
Thermal
Power
Station
6x210 MW
Extension of
Ash Disposal
Pipe Lines

Gujarat
Electri-city
Board

-

1992

Extension of
Ash Disposal
Pipe lines and
addition of 12
Nos. Ash
slurry pumps
(CD-135).

101.

Vijayawada
Thermal
Power
Station,
Stage-I, Unit #
1 & 2

APSEB

-

1991

Supply of
additional
three (3) Nos.
Ash Slurry
Pumping (D-
85D) System.


Sl.
No.

Plant

Client

Ash
Handling
System
Each
Unit
Capacity

Year of
Initial
Operati
on

Brief Description of
System

102.

Durgapur
Projects
Power Station
Unit # 3, 4 &
5 (3x75 MW)

Durgapur
Projects Ltd.

60/3x40 TPH

Unit # 3 -
1995

Storage type
Bottom Ash
Hopper. Ash
is jetted into
common
slurry sump
using
hydroejector.
Fly ash is
evacuated in
dry form and
conveyed
upto slurry
sump by
gravity. Ash
slurry is
disposed of
using slurry
pumps.

103.

Rourkela
Steel Plant
Revamping of
Power Plant
No. 1 Ash
Handling
System

Steel Authority
of India
Ltd.

40/40 TPH

Unit # 1 1994 Unit
# 2 1995

Storage type
Bottom Ash
Hopper. B.A.
slurry is jetted
into common
slurry sump
using
hyderoejector.
Fly ash is
evacuated in
dry form and
disposed off in
wet slurry
form using
CD-135 slurry
pumps.


Sl.
No.

Plant

Client

Ash
Handling
System
Each
Unit
Capacity

Year of
Initial
Operati
on

Brief Description of
System

104.

Nangal Unit,
Steam
Generation
Plant Boiler
3x182 TPH

National
Fertilizer
Limited

30/45 TPH

1992

B.A. slurry is
jetted into
common
slurry sump
using existing
Hydro-
ejector. Fly
ash is
evacuated in
dry form upto
Air separator
tank. BA & FA
systems
increased to
200 NB from
existing 150
NB.


Sl.
No.

Plant

Client

Ash
Handling
System
Each
Unit
Capacity

Year of
Initial
Operati
on

Brief Description of
System

105.

Talcher Super
Thermal
Power Project
Stage-I
(2x500 MW)

National
Thermal
Power
Corporation,
Ltd.

120/120 TPH

Unit # 1 - 1995

Unit # 2 - 1996

Bottom Ash is
collected in
water
impounded
hopper and
ash slurry is
jetted upto
common ash
slurry sump.
Fly Ash is
evacuated in
dry from upto
wetting head/
collector tank
and slurry is
conveyed
upto common
ash slurry
sump. Ash
slurry is
pumped to
ash disposal
area using D-
85D pumps

106.

Vijayawada
Thermal
Power
Station,
Stage-I Units
# 1 & 2

APSEB

-

1994

Supply of
additional six
(6) Nos. 3rd
Stage Ash
Slurry
Pumping (CD-
135) System.

107.

Sikka Thermal
Power Station
Extn. Stage-II,
Unit # 2 (120
MW)

Gujarat
Electricity
Board

120/90 TPH

1992

This system is
similar to
Sikka TPS
Stage-I Units
except silo.


Sl.
No.

Plant

Client

Ash
Handling
System
Each
Unit
Capacity

Year of
Initial
Operati
on

Brief Description of
System

108.

Raichur
Thermal
Power Station
Units # 1, 2 &
3 (210 MW)
Ash Handling
System

Karnataka
Power
Corporation,
Ltd.

-

1992

Supply of
additional six
(6) Nos. 3rd
Stage Ash
Slurry
Pumping (CD-
135) systems.

109.

Bandel TPS
Unit # 5
(1x210 MW)
Fly Ash
Disposal
System

West Bengal
State
Electricity
Board

35 TPH

1993

Dry fly ash
collection
system using
3 Cell
Collector &
Pressure
conveying
upto Brick
Plant Silo.

110.

IB Thermal
Power Station
Unit # 1 & 2
Ash Handling
Plant (2x210
MW)

Orissa State
Electricity
Board

140 TPH

Unit # 1 - 1994

Unit # 2 - 1996

Storage type
bottom ash
hopper,
continuous
handling of
Fly ash in wet
form. Bottom
ash and fly
ash slurries
are pumped to
disposal area
using Frame
D-85D
hydroseal ash
slurry pumps.


Sl.
No.

Plant

Client

Ash
Handling
System
Each
Unit
Capacity

Year of
Initial
Operati
on

Brief Description of
System

111.

Chandrapura
Thermal
Power Station
Unit # 2

Damodar
Valley
Corporation

40 TPH

1993

Fly Ash is
evacuated in
dry form and
transported to
ash slurry
sump after
mixing with
water in
wetting head
and collector
tank

112.

Koradi
Thermal
Power Station
Unit # 5 (200
MW) Fly ash
handling
Renovation
Scheme

Maharashtra
State
Electricity
Board

140 TPH

1997

Fly ash
evacuation
system using
feeder
ejectors and
resultant
slurry
transported to
the existing
slurry sump
through
vertical slurry
pump.

113.

Parichha
Thermal
Power Project
Dry Fly Ash
Conveying
System

Diamond
Cements

40 TPH

1993

Dry Fly Ash
Collected in '3'
cell collector
and
transported to
silo through
conveying air
blowers.


Sl.
No.

Plant

Client

Ash
Handling
System
Each
Unit
Capacity

Year of
Initial
Operati
on

Brief Description of
System

114.

Parli Thermal
Power Station
Unit # 3
(1x210 MW)
Retrofitting of
Fly Ash
Handling
System

Maharashtra
State
Electricity
Board

120 TPH

1995

Fly ash
evacuation
system using
Feeder ejector
and resultant
slurry
transported
through
Hydroejectors
to existing
main slurry
tank.

115.

Chandrapura
Thermal
Power Station

Units # 3, 4,
5& 6

Damodar
Valley
Corporation

40/45 TPH

1995

Fly ash is
evacuated in
dry form and
transported to
ash slurry
sump after
mixing with
water in
wetting head
and collector
tank.


Sl.
No.

Plant

Client

Ash
Handling
System
Each
Unit
Capacity

Year of
Initial
Operati
on

Brief Description of
System

116.

Dahanu
Thermal
Power Project
2x250 MW
Units Ash
Handling
Plant

Bombay
Suburban
Electric
Supply Ltd.

120/160 TPH

Unit # 1 - 1994

Unit # 2 - 1995

Storage type
bottom ash
hopper.
Bottom ash
transported to
ash slurry
sump once
per shift for
disposal with
slurry pumps.
Coarse & fly
ash is
evacuated
with feeder
ejectors and
slurry
disposed off
to ash slurry
sump. BA &
FA slurries
pumped
independently.
Programmabl
e Logic
Controller
provided.

117.

Raichur
Thermal
Power Station
Stage- II,
Unit# 4
(1x210 MW)
Ash Handling
System

Karnataka
Power
Corporation,
Ltd

120/200 TPH

1995

Similar to
Raichur TPS
Stage-II, Unit
# 3 under Sl.
No. 91.


Sl.
No.

Plant

Client

Ash
Handling
System
Each
Unit
Capacity

Year of
Initial
Operati
on

Brief Description of
System

118.

Vijayawada
Thermal
Power Station
Stage-III
2x210 MW,
Units # 5&6

Andhra
Pradesh State
Electricity
Board

130/180 TPH

1994

Bottom Ash
is collected
in water
impounded
hopper and
ash slurry
jetted upto
common ash
slurry sump.
Fly Ash is
evacuated in
dry form
using
Mechanical
Exhauster
(Vacuum
Pumps) upto
wetting
head/collecto
r tank for wet
disposal or
'3'-cell
collector for
dry collection
using
blowers to
transport ash
upto silo.
The wet ash
is pumped to
ash disposal
area using
CD-135D
pumps.


Sl.
No.

Plant

Client

Ash
Handling
System
Each
Unit
Capacity

Year of
Initial
Operati
on

Brief Description of
System

119.

NTPC-BALCO
TPS
Additional
E.S.P.

ACC Babcock

25 TPH

1994/95

Fly Ash is
evacuated in
dry form using
Hydrovactor
and trans-
ported to ash
slurry sump
after mixing
with water in
wetting head
and collectors
tank.
Provision is
there for dry
fly ash
collection.

120.

Chandrapura
Thermal
Power Station
Units # 1to 6
Renovation
and
Modification of
Ash Slurry
Disposal
System

Damodar
Valley
Corporation

-

Execution

Supply of
additional six
(6) Nos. 4th
Stage Ash
Slurry
Pumping (CD-
135D, 3 Vane)
System.

121.

Barauni
Captive
Power Plant,
2x70 TPH -
Fly Ash
Handling
System

Hindustan
Fertiliser
Corpn.
Limited

40 TPH

Execution

Fly Ash is
pneumatically
extracted from
new ESP of
one (1) unit
upto existing
Hydrovactor,
Air separator
Tank.


Sl.
No.

Plant

Client

Ash
Handling
System
Each
Unit
Capacity

Year of
Initial
Operati
on

Brief Description of
System

122.

Kothagudem
Thermal
Power
Station 'C'.

A.P. State
Elec-tricity
Board

-

1994

Modification of
existing Ash
Slurry Pumps.

1 23.

Tamil Nadu
Newsprint and
Papers Ltd. -
4x60 TPH
Boilers

TNPL

40 TPH

1995

Dry Fly Ash
Handling
System for the
existing three
(3) boilers and
one (1)
proposed
additional
boiler units.

124.

Shriram
Fertilizers &
Chemicals Ltd
- 2x30 MW
Boilers

SFC

20 TPH

1994

Fly Ash is
evacuated in
dry form using
Mechanical
Exhauster
(Vacuum
Pumps) upto
wetting head/
Collector tank
for wet
disposal.


Sl.
No.

Plant

Client

Ash
Handling
System
Each
Unit
Capacity

Year of
Initial
Operati
on

Brief Description of
System

125.

The
Ahmedabad
Electricity Co.
1x60 MW P.F.
Boiler
replacement
Project Ash
handling
system

AECO

80/30 TPH

Execution

Bottom ash
collected in
water
impounded
hopper and
ash slurry
jetted upto
slurry sump.
FA is
evacuated in
dry form using
mechanical
Exhauster
(Vacuum
Pumps) upto
F.A. Silo.

126.

Nestle India
Limited - 1x14
TPH, FBC
Boiler - Fly
Ash Collection
System

Nestle India,
Limited

4 TPH

1995

Bed/Fly Ash is
evacuated in
dry form using
Mechanical
Exhauster
(Vacuum
Pump) upto
Silo

Sl.
No.

Plant

Client

Ash
Handling
System
Each
Unit
Capacity

Year of
Initial
Operati
on

Brief Description of
System

127.

Kothagudem
Thermal
Power Station
Stage- V,
2x250 MW
Units # 9 &
10, Ash
Handling
Plant

Andhra
Pradesh State
Electricity
Board

BA - 2x120 TPH CA
- 32 TPH FA -
4x53.5TPH

1998

Bottom Ash
collected in
water
impounded
hopper and
ash slurry
jetted to
common ash
slurry sump.
Coarse ash
evacuated
thru Feeder
ejector in wet
form and Fly
ash is
evacuated in
dry form using
Mechanical
Exhauster
(Vacuum
Pumps) upto
wetting head/
collector tank
for wet
disposal or
dust collectors
for dry
conveying
upto silo using
blowers. The
wet ash is
pumped to
ash disposal
area using
slurry pumps.
This is similar
to VTPS
Stage III

































































under S.No.


Sl.
No.

Plant

Client

Ash
Handling
System
Each
Unit
Capacity

Year of
Initial
Operati
on

Brief Description of
System

128.

Durgapur
Thermal
Power
Station, Unit #
3 (1x75 MW)
New E.S.P

Damodar
Valley
Corporation

40 T

1998

Fly Ash is
evacuated
using
Mechanical
Exhauster and
transported to
existing slurry
sump after
mixing with
water in
wetting head
and collector
tank.

129.

Renukoot
Captive
Thermal
Power Plant,
Stage - I,
1x25 MW
Ash Handling
System

Kanoria
Chemicals &
Industries
Limited

44/65 TPH

1998

Bed Ash is
handled in
slurry form
upto disposal
area using
Vertical slurry
pump. Dry
Fly Ash is
evacuated
and conveyed
upto makeup/
main silo by
pressure
pneumatic
system using
Airlock
Valves.


Sl.
No.

Plant

Client

Ash
Handling
System
Each
Unit
Capacity

Year of
Initial
Operati
on

Brief Description of
System

130.

Ukai Thermal
Power Station
Units # 1& 2
(2x120 MW)
Augmentation
of Ash
Handling
Plant

G. E.B.

Wet - 35TPH
Dry - 30 TPH

1998

Fly Ash
evacuated in
dry form by
vacuum is
mixed with
water to form
slurry in an
elevated Air
separator
Tank
alternatively
dry fly ash
collected in
storage silo.

131.

Durgapur
TPS, Unit # 4
Fly Ash
Handling
System for
two (2) new
ESPs.

DVC

20 TPH

1998

Fly ash mixed
with water
using flushing
Apparatus
and conveyed
to existing
slurry sump
thru trenches.

132.

Kothagudem
Thermal
Power Station
'C' - Units #
7& 8
Renovation/
Modification of
Fly Ash
Handling
System

APSEB

35 TPH

1998

Additional
stream for Fly
Ash Handling
System upto
slurry sump.


Sl.
No.

Plant

Client

Ash
Handling
System
Each
Unit
Capacity

Year of
Initial
Operati
on

Brief Description of
System

133.

Karbigahia
TPS, 2x5 MW

BSEB


1998

Ash and coal
handling
system
mechanisation
of Units # 3 &
4

134.

Wanakbori
Thermal
Power Station
Extn. Unit # 7
1x210 MW

G.E.B.

1x104 TPH/

3x37 TPH

1998

Bottom Ash
Collected in
water
impounded
"V" Shaped
hopper and
slurry jetted to
common Ash
Slurry
Sump.
Fly Ash is
evacuated
using
Mechanical
Exhauster
(Vacuum
Pump) upto
Wetting
Head/Collecto
r Tank for wet
disposal or
silo Mounted
Dust Collector
for dry
collection into
silo. The wet
ash is
pumped to
ash disposal
area using
slurry pumps.


Sl.
No.

Plant

Client

Ash
Handling
System
Each
Unit
Capacity

Year of
Initial
Operati
on

Brief Description of
System

135.

Vindyachal
Super
Thermal
Power Project
Stage II
(2x500 MW) -
Ash Handling
System

National
Thermal
Power Corpn.
Ltd.

2x44 TPH/

2x184 TPH

Execution

Bottom Ash is
collected in
water
impounded
hopper and
ash slurry is
jetted upto
common ash
Slurry
sump.
Fly Ash is
Evacuated in
dry form upto
Wetting Head/
Collector Tank
for wet
disposal and
slurry is
conveyed
upto common
ash slurry
sump or Dry
Fly Ash is
conveyed in
Dry form upto
Silo using
Vacuum-cum-
pressure
conveying
system using
Buffer Hopper.
The Ash
Slurry
from
Slurry
Sump is
pumped to
Ash Disposal


Sl.
No.

Plant

Client

Ash
Handling
System
Each
Unit
Capacity

Year of
Initial
Operati
on

Brief Description of
System

136.

Talcher
Thermal
Power Station
Unit # 5& 6
(2x110 MW) -
Fly Ash
Storage Plant
Package

NTPC

2x40 TPH

Execution

A top off
connection is
taken from the
existing
system for dry
collection in
silo using silo
mounted dust
collectors.

137.

Farakka
Super
Thermal
Power Station
StageI
(3x200 MW)
Dry Ash
Extraction &
Transpor-
tation Plant
Package

National
Thermal
Power Corpn.
Ltd.

35 TPH

Execution

Fly Ash is
evacuated in
dry form
using
Mechanical
Exhauster
upto Buffer
Hopper and
conveyed
upto silo
under
pressure
using
conveying Air
Blower.


Sl.
No.

Plant

Client

Ash
Handling
System
Each
Unit
Capacity

Year of
Initial
Operati
on

Brief Description of
System

138.

Kahalgaon
Super
Thermal
Power Station
StageI
(4x210 MW)
Dry Ash
Extraction &
Transpor-
tation Plant
Package

National
Thermal
Power Corpn.
Ltd.

35 TPH

Execution

Fly Ash is
evacuated in
dry form using
Mechanical
Exhauster
upto Buffer
Hopper and
conveyed
upto silo
under
pressure
using
conveying Air
Blower.

139.

Power
Generation
Project

Rain Calcining
Ltd.

-

1998

Supply of Ash
Handling
equipment for
Fly Ash & Bed
Ash.

140.

Steam
Generation
Plant at
Sindri, Boiler
Units 1, 2& 3,
Fly Ash
Handling
system

Fertilizers
Corpn. Of
India Ltd.

-

1998

Design,
Engineering,
Manufacturing
Supply
delivery
erection &
commi-
ssioning of
Ash Handling
System.

141.

Hindustan
Fertilizer
Corporation
Limited

HFCL

-

1998

Supply and
Erection of Fly
Ash Disposal
System.


Sl.
No.

Plant

Client

Ash
Handling
System
Each
Unit
Capacity

Year of
Initial
Operati
on

Brief Description of
System

142.

Wanakbori
Thermal
Power
Station, Units
# 1 to 6

Gujarat
Electricity
Board

-

1998

New
extension of
Ash Disposal
Pipe line
beyond
existing Point
No. 7 to ADP
No. 8 in Ash
Dyke4 area.

143.

Durgapur
Thermal
Power Station
Units # 3, 4 &
5

The Durgapur
Projects
Limited

-

1998

Supply,
installation,
testing and
commissionin
g of
associated
Ash Handling
System of
new Electro-
static
Precipitators.


Sl.
No.

Plant

Client

Ash
Handling
System
Each
Unit
Capacity

Year of
Initial
Operati
on

Brief Description of
System

144.

Panipat TPS
Stage-I Units
# 1&2 (2x110
MW) Ash
Handling
System of
Retrofit ESP

HSEB

-

Execution

Bottom Ash
Collected in
Water
impounded V-
shaped
hopper and
slurry jetted to
common ash
slurry sump fly
ash is
evacuated
using
Mechanical
Exhauster
(Vacuum
Pump) upto
wetting
head/collector
tank for wet
disposal. The
wet ash is
pumped to
ash disposal
area using
slurry Pumps.

Sl.
No.

Plant

Client

Ash
Handling
System
Each
Unit
Capacity

Year of
Initial
Operati
on

Brief Description of
System

145.

Renusagar
Power Divn. -
8 Units - 575
MW + 1x290
TPH Boiler #
9 of
Expansion
Stage-V for all
8 Units

Hindalco
Industries
Limited

1200 m
3
/hr.

1998

1.

Turnke
y long
distanc
e ash
pumpi
ng
project
of Ash
Dispos
al
Syste
m for
575
MW
capacit
y &
one
spare
boiler
(from
Renus
agar to
Bichari
tols,
About
7 KM)

2.

Engineerin
g, Supply,
Erection &
Commissi
oning of
Ash
Handling
System for


































































290 TPH


Sl.
No.

Plant

Client

Ash
Handling
System
Each
Unit
Capacity

Year of
Initial
Operati
on

Brief Description of
System

146.

Korba Super
Thermal
Power
Project,
Stage-II
(3x500 MW)

National
Thermal
Power Corp.
Ltd.

216 (F.A.)

Execution

Fly Ash is
evacuated in
dry form upto
Wetting Head/
Collector Tank
for wet
disposal and
slurry is
conveyed
upto common
ash slurry
sump or dry
fly ash is
conveyed in
dry form upto
silo using
vacuum-cum-
pressure
conveying
system using
buffer hopper.
The ash slurry
from slurry
sump is
pumped to
ash disposal
area using
slurry pumps.

147.

Sikka Thermal
Power Station

Gujarat
Ambuja
Cement Ltd.

-

Execution

Dry Fly Ash
Collection in
Silo.

148.

Balco Captive
Power Plant
Booster Pump
Package
(Augmn.)

NTPC

-

Execution

Modification of
existing Ash
Slurry Pumps.


Sl.
No.

Plant

Client

Ash
Handling
System
Each
Unit
Capacity

Year of
Initial
Operati
on

Brief Description of
System

149.

Panipat TPS
Stage-I Up-
gradation of
Ash Slurry
Disposal
System

ABB

-

Execution

Replacement
of existing
four (4) Nos.
Ash Slurry
Pumps with
higher
capacity D-85
Indian Pumps
with motor &
rotation &
extension of
executing Ash
Slurry pumps.

150.

EVN Phalai
Thermal
Power Plant
No. 2

(2x300 MW)

Hyundai
Engg. &
Construction
Co. Ltd.

2x60 TPH (B.A.)

2x40 TPH (F.A.)

Execution

Bottom ash
collected in
water
impounded
hopper and
ash slurry
transported
upto slurry
sump. FA
evacuated in
dry form using
mechanical
exhauster
(Vacuum
Pumps) upto
FA silo. Ash
water
recovery
system also
provided.


Sl.
No.

Plant

Client

Ash
Handling
System
Each
Unit
Capacity

Year of
Initial
Operati
on

Brief Description of
System

151.

Suratgarh
Thermal Power
Station, Stage-II,
Units # 3&4
(2x250 MW)

Rajasthan State
Electricity Board

2x60 TPH (B.A.)
1x25 TPH (C.A.)
5x45 TPH (F.A.)

Executing

Bottom Ash is
collected in water
impounded
hopper and ash
slurry is jetted
common ash
Slurry sump. Fly
Ash is Evacuated
in dry form upto
Wetting
Head/Collector
Tank for wet
disposal and
slurry is
conveyed
common ash
slurry sump. The
Ash Slurry from
Slurry Sump is
Pumped to Ash
Disposal Area
using Slurry
Pumps.

152.

Godavari Sugar
Mills Ltd. 24
MW Bagasse
Power Plant

B.S.E.S.

2x16 TPH

Execution

Bed/Fly Ash is
evacuated in dry
form using
Mechanical
Exhauster
(Vacuum Pump)
upto Silo


Sl.
No.

Plant

Client

Ash
Handling
System
Each
Unit
Capacity

Year of
Initial
Operati
on

Brief Description of
System

153.

Angul Unit # 7
(1x120 MW) CPP
Expansion, Ash
Handling Plant

NALCO

51 TPH (B.A.)
40 TPH (F.A.)

Execution

Bottom ash
collected in water
impounded
hopper and slurry
is transferred to
existing slurry
sump thru jet
pumps/trenches.
Dry fly ash is
evacuated from
ESP hoppers
using Dense
Phase pressure
system to silos
for Dry unloading
or mixed with
water below silos
to form slurry for
disposal to the
dyke by slurry
pump.

154.

Korba Thermal
Power Station
Refurbishment of
4x50 MW Units
Ash Handling
System

ABB Alstom

6 TPH (B.A.)
20 TPH (F.A)

Execution

R&M of existing
Ash Handling
System.
Consisting of
Scraper Chain
Conveyor for
Bottom ash.
Feeder ejectors
for fly ash and
ash slurry
disposal to ash
pond.


Sl.
No.

Plant

Client

Ash
Handling
System
Each
Unit
Capacity

Year of
Initial
Operati
on

Brief Description of
System

155.

Anpara B TPS
(2x500 MW) Dry
Fly Ash
Collection
System


Vacuum: 2x40
TPH
Pressure: 1x80
TPH

Execution

Ash handling
plant having long
distance
Vacuumcum-
pressure
conveying
system for fly
ash. Storage type
bottom ash
hopper. Fly ash
from various
hoppers is
Conveyed to
transfer tanks by
vacuum using
vacuum pumps
and is further
transported to
ash silos situated
at a distance of
approx. 1.5 KM
by pressure.
Conveying using
screw
compressors.

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