Basic Equipment in a Coal Handling Plant in a Thermal Power Plant

1. TALWANDI SABO POWER LIMITED

2. Introduction
• Coal is the primary fuel for production of
electricity in our country. The importance and
magnitude of the business of coal handling is
emphasized by the fact that more than 60% of
India’s total installed generating capacity
consists of coal fired stations.
TALWANDI SABO POWER LIMITED
Installed Capacity in India
Installed
Capacity
as on
Thermal (MW)
Nuclear
(MW)
Renewable (MW)
Total
(MW)
%
Growth
(on
yearly
basis)
Coal Gas Diesel
Sub-
Total
Thermal
Hydro
Other
Renewa
ble
Sub-
Total
Renewa
ble
31 Mar
2016
185,173 24,509 994 210,676 5,780 42,783 42,849 85,632 302,088 11.18%

3. Transportation of coal
• Coal is transported from the collieries by the
various methods viz. , by rail, road or
conveyor belt. After transporting the coal
from coal mines to power station, coal is
required to be fed to the boilers or to be
stored in the storage yard and this is
accomplished with the help of a system of
equipments called coal handling plant.
TALWANDI SABO POWER LIMITED

4. Stock Yard
• When coal transportation system fails it is
essential that coal should be made available
to boilers continuously so that three may not
be stoppage of power. To meet such situation
it is necessary that sufficient stock of coal is
made at the power station so that there may
not be interruption in coal supply to the
boilers.
TALWANDI SABO POWER LIMITED

5. Two main functions
• It is expected to keep a minimum ground
stock of coal to cater to the requirement of
the station for the period of 45 days. Thus
besides unloading the coal received by various
mode of transportation, coal handling plant
has to perform two main functions (i) Stacking
and reclaiming of coal to feed the boilers in
case direct supply from mines fails (ii) To feed
the boilers with the coal directly received
from mines
TALWANDI SABO POWER LIMITED

6. Components Of CHS
 IDLERS.
 PULLEYS.
 BELTS.
 GEAR BOX, GEARED COUPLING,FLUID COUPLING,FLYWHEEL.
 STACKER CUM RECLAIMER.
 VIBRO FEEDERS.
 DUST SUPPRESSION SYSTEM & DUST EXTRACTION SYSTEM.
 MAGNETIC SEPARATOR & METAL DETECTOR.
 COAL SAMPLING UNIT, TRAVELLING TRIPPER & PLOUGH
FEEDERS.
 SCRAPPERS,SKIRT SEALING,FLAP GATE,BELT WEIGH SCALE.
TALWANDI SABO POWER LIMITED

7. TALWANDI SABO POWER LIMITED
Coal Handling System

8. IDLERS
Carrying Idlers
Return Idlers
Types Of Idlers
• 35˚ Carrying Idlers
• 20˚ Transition Idlers
•10˚ Transition Idlers
•35˚ S A carrying Idlers
•35˚ Impact Idlers
•15˚ Return Idlers
•Flat Return Idlers
TALWANDI SABO POWER LIMITED

9. IDLERS (cont.)
TALWANDI SABO POWER LIMITED

10. PULLEYS
Types Of Pulleys
• Head Pulleys
• Tail Pulleys
• Snub Pulleys
• Bend Pulleys
• Take Up Pulleys
Head Pulley
TALWANDI SABO POWER LIMITED

11. BELTS
• Types Of Belts
• Steel Cord Belts
• EP Belts
TALWANDI SABO POWER LIMITED

12. GEAR BOX WITH COUPLINGS, FLYWHEEL
General arrangement for Gear Box with couplings & flywheel.
M GBC PC
Types Of Couplings
• Fluid Couplings
• Rigid Couplings
TALWANDI SABO POWER LIMITED

13. STACKER-CUM-RECLAIMER
Capacity:-
Stacking-2500 TPH
Reclaiming-2500 TPH
TALWANDI SABO POWER LIMITED

14. MAGNETIC SEPARATOR & METAL
DETECTOR
Magnetic Separators with
Metal detectors
TALWANDI SABO POWER LIMITED

15. COAL SAMPLING UNIT
Components:
• Primary Sampler
• Primary Belt Feeder
• Primary Sample Crusher
• Screw Conveyor
• Secondary Sampler
TALWANDI SABO POWER LIMITED

16. SKIRT SEALING
Skirt Board are provided
at transfer of coal
from one conveyor to
another conveyor.
Skirt Board
TALWANDI SABO POWER LIMITED

17. Rotary type wagon Tippler
TALWANDI SABO POWER LIMITED

18. Feeder
TALWANDI SABO POWER LIMITED

19. Gravity take-up arrangment
TALWANDI SABO POWER LIMITED

20. Crusher
TALWANDI SABO POWER LIMITED

21. # 3
# 2
# 1
TT-0
TT-5
TT-3
CRH
TT-6
TT-7
TT-8
TT-9
TT-10
TT-11
TT-12TT-13
WT-1
WT-4
WT-3
WT-2
CHP CCR
Wagon Tippler: 04 nos
Conveyors: 29 nos
TTs: 13 nos
Crushers : 04 nos
Roller Screens: 04 nos
Stacker cum Reclaimer : 02 nos.
Conveyor Speed : 3.2 m/s
Total length : 10 km approx.
1ABCD
2A
2B
3A
3B
4A
4B
5A
TT-2
TT-
1
5B
6A
6B
7A
7B
7C
8B
8A
9B 9A
10B
10A
11A
11B
12A
12B
13B13A
SR-1
SR-2
LAYOUT OF TSPL COAL HANDLING PLANT
TALWANDI SABO POWER LIMITED
V-Type Plough Discharge: 34 nos.
Total Hydrant post : 102 nos
Total Dv’s : 95 nos
Total monitor : 22 nos
Pumps : 31 nos
Yard sprinklers : 144 nos
Coal Samplers : 04 nos
Belt scale : 04 nos
Magnetic separator: 08 nos
Metal detector : 04 nos
Bull dozer : 04 nos
Coal stock capacity :10 lac MT

22. THANK YOU