Mill reject system in thermal power plant

Hi

1. PRESENTATION ON MILL PRESENTATION ON MILL
REJECT HANDLING SYSTEMREJECT HANDLING SYSTEM

2. What is Mill rejects?
Location of system in plant
Method of collection
Methods of conveying
Typical Flow Scheme
Interface with units
MILL REJECT SYSTEM

3. What are mill reject?
Pyrite (FeS2, iron ore, nickname
fool's gold) (Photo 1, Photo 2)
Stone
Iron pieces
Uncrushed material

4. GA OF MILL

5. METHOD OF COLLECTION

6. Mill Layout Arrangement for Various
Plant Rating
SnoPlant Rating Mill
Orientation
Remarks
1 210-300 MW Front/Rear
Mill
Typical
layout for
Front/Rear
mill
2 500 and
above
Side mill Typical
layout for
side mill

7. Mill layout practiced in BHEL

8. METHOD OF CONVEYING
• BELT CONVEYING
• PNEUMATIC CONVEYING
• CHAIN CONVEYING
• HYDRO SLUICING
• MANUAL REMOVAL

9. CHAIN CONVEYING
FLOW DIAGRAM FOR CHAIN
CONVEYING SYSTEM

10. CHAIN CONVEYING
DRAG CHAIN CONVEYOR
WIRE MESH BELT
CONVEYOR

11. CHAIN CONVEYING
APRON TYPE CONVEYOR

12. PNEUMATIC
CONVEYING
FLOW DIAGRAM FOR
PNEUMATIC CONVEYING
PNEUMATIC CONVEYING
(VIDEO)

14. PNEUMATIC CONVEYING

15. BHEL- Hyderabad – Reject
generation & properties
 BHEL Trichy- Location of Mill
Reject Pipe corridor
BHEL EDN- I/Os for control
through DCS
Interface with BHEL units

16. THANK YOUTHANK YOU