| |
|
Slide 1 :
|
ASH HANDLING SYSTEM |
|
|
Slide 2 :
|
CONTENTS ALTERNATIVES
BOTTOM ASH SYSTEM
FLY ASH SYSTEM
SLURRY DISPOSAL AND ASH WATER RECOVERY SYSTEM |
|
|
Slide 3 :
|
BOTTOM ASH HANDLING SYSTEM |
|
|
Slide 4 :
|
FLY ASH HANDLING SYSTEM |
|
|
Slide 5 :
|
ASH DISPOSAL SYSTEM |
|
|
Slide 6 :
|
RECOMMENDATION BOTTOM ASH HANDLING SYSTEM
Scrapper Chain and Belt Conveyor
FLY ASH HANDLING SYSTEM
Dense Phase Pressure type
ASH DISPOSAL SYSTEM
Lean Slurry Disposal System
CONTENTS |
|
|
Slide 7 :
|
BOTTOM ASH SYSTEM Bottom ash hopper Scrapper conveyor Clinker Grinder Belt Conveyor Bottom Ash Silo Vibrating feeder Truck |
|
|
Slide 8 :
|
Bottom Ash Hopper Provided with refractory lining
Capacity 36 TPH
4 hours storing capacity |
|
|
Slide 9 :
|
Scrapper Conveyor Total number=2(1w+1s) http://www.bsbkgroup.com/flash/movie6.htm |
|
|
Slide 10 :
|
Clinker Grinder Single/Double roll clinker grinder which crush <25 mm
Rolls will be of Cast Chrome Vanadium-Molybdenum wear resisting steel
Number=2 |
|
|
Slide 11 :
|
Belt Conveyor Belt Width=650mm
Troughing angle=350
Speed=1m/s
|
|
|
Slide 12 :
|
Bottom Ash Silo One bottom ash silo for both units
Capacity =600 T
12 hours storing capacity |
|
|
Slide 13 :
|
Vibrating Feeder Capacity 240 TPH
Feeder trough will be provided with 10 thick TISCRAL/Sail hard liners
Vibrating feeder consists of vibrating frame, spring, vibrator, motor vibrating device and motor CONTENTS |
|
|
Slide 14 :
|
Fly Ash System APH/ECO/ESP HOPPER INTERMEDIATE SURGE HOPPER TRANSMITTER VESSEL FLY ASH SILO SPOUT/ASH CONDITIONER CLOSE/OPEN TRUCK |
|
|
Slide 15 :
|
INTERMEDIATE SURGE HOPPER 2Nos (1W+1S)
Capacity=108 T
Vent filter to discharge clean air |
|
|
Slide 16 :
|
TRANSMITTER VESSEL Pressure is created in transmitter vessel
Fluidisation using air blower is carried out
Size of vessel is depends on number of cycles |
|
|
Slide 17 :
|
Fly Ash Silo Capacity=1500 T
2 Nos
Storage Capacity=14hrs |
|
|
Slide 18 :
|
UNLOADING SPOUT Provided on two of the outlets on each of the silos
Telescope into inlet of container trucks thus reducing dust nuisance
Fitted with level probe |
|
|
Slide 19 :
|
ASH CONDITIONER CONTENTS Ash feed rate from the ash storage silo is precisely controlled.
Water spray feed rate is adjusted by control valves.
The conveying action provided by the rotating paddles provides continuous flow of uniformly mixed ash with no excess water or dusting. |
|
|
Slide 20 :
|
SLURRY DISOPOSAL AND ASH WATER RECOVERY SYSTEM SILO SLURRY PUMP SETTLING POND STILLING POND VERTICAL TURBINE PUMP CLARIFLOCULATOR ASH WATER TANK |
|
|
Slide 21 :
|
SLURRY PUMP Horizontal, centrifugal type
Capacity = 450 m3/hr
No. of pumps = 3(2W+1S) |
|
|
Slide 22 :
|
SETTLING AND STILLING POND Provided with HDPE
70% of water can be recovered
Slurry settles due to residence in settling pond
Partial clear water then goes to stilling pond
Remaining ash settles in stilling pond |
|
|
Slide 23 :
|
VERTICAL TURBINE PUMP Used wherever a liquid need to be pumped upwards
Used to moderate to high pressure applications
Used in open bodies of liquids such as oceans, lakes, cooling ponds. |
|
|
Slide 24 :
|
CLARIFLOCCULATOR Combination of Clarifier and Flocculator
Suspended solids limited to 20ppm
Clear water is led to Ash Water tank CONTENTS |
|