HR Fan

1. SUPER SMELTERS
LIMITED
SAI GROUP
MODEL AREA
hr fan & multicyclone
Created By : Prosenjit Bhandary

2. HR FAN & MULTICYCLONE
Created By : Prosenjit Bhandary

3. Created By : Prosenjit Bhandary

4. Created By : Prosenjit Bhandary

5. Cleaning schedule as below:
Equipment/Area list Daily Weekly Monthly Shut down Remarks
HR FAN Platform 
Multi – Cyclone Top Floor

Multi – Cyclone Middle
Floor 
Multi – Cyclone Bottom
Floor

Multi – Cyclone Inner Side

Multi – Cyclone
Conveying Line 
*(Note: If there is any abnormality in the plant, cleaning schedule will be changed as per situation).
Created By : Prosenjit Bhandary

6.  Cotton hand gloves.
 Wire Brush.
 Cotton waste.
 Shovel.
 Dhama
Created By : Prosenjit Bhandary

7. TECHNICAL SPECIFICATION:-
 HR FAN 01 : HR FAN 02 :-
Motor capacity - 440 KW Motor capacity - 440 KW
Motor RPM - 993 Motor RPM - 993
Fan capacity - 200000 m3/hr Fan capacity - 200000 m3/hr
MULTICYCLONE CONVEYING SYSTEM
CAPACITY – 3 TPH
INSTRUMENT AIR – 4.0 – 4.5 KG/CM2
CONVEYING AIR – 6 – 7 KG/CM2
Created By : Prosenjit Bhandary

8.  Stop the equipment if any abnormal sound.
 Do wear your PPE.
 Clean Multi - cyclone purging line regularly.
 Exercise good housekeeping. Clean all tools after each use and
store them properly.
 Inform to service department if any spillage, any abnormal
sound immediately.
 Keep work area clean and well-lit.
 Press the emergency button in LCS and ensure the complete
power off respective electrical equipment before initiating any
maintenance.
Created By : Prosenjit Bhandary
 DO’S :

9.  DO’S :
 Stop the equipment if any abnormal sound.
 Do wear your PPE.
 Clean Multi - cyclone purging line regularly.
 Exercise good housekeeping. Clean all tools after each use and
store them properly.
 Inform to service department if any spillage, any abnormal
sound immediately.
 Keep work area clean and well-lit.
 Press the emergency button in LCS and ensure the complete
power off respective electrical equipment before initiating any
maintenance.
Created By : Prosenjit Bhandary

10.  DON’T :
 Do not touch any of the moving part.
 Do not touch parts under electrical power.
 Do not misuse safety appliances.
 Leave machines running without supervision.
 Distract an operator while operating a machine
Created By : Prosenjit Bhandary

11.  SOURCE OF CONTAMINATION:-
o Counter measures :
1. Water line provided for road cleaning.
2. Shed has been provided to protect from rain water and sun
heat.
 Leakages (Multi-Cyclone Conveying line)
o Counter measures :
1. Conveying pipeline will be replaced or patching will be done.
2. Daily Inspection to avoid leakage.
3. Dumb valve will be placed if found damaged.
4. Rubber seal will be placed if found damaged.
 Roads (Dust)
Created By : Prosenjit Bhandary

12. Safety Precautions
Do's Don'ts
1. Always stay away from all moving
equipments.
1. Don’t start HR fan without clearance of
Mechanical and Electrical department
2. If any abnormal sound then stop the
fan.
2. Don’t start HR fan without getting clearance
from TG operator.
3. Keep an eye on HR inlet temperature
(Not more than 3500C).
 Make sure all PTW is released.
 Ensure that no one is working in HR fan area.
 Ensure that all inspection doors are in close position.
 Ensure that process water pump is in running condition.
 Make sure bearing cooling water line all valves are in open position.
 Check water pressure and flow as per requirement.
 Ensure that all interlocks are in line.
 Start HR fan with minimum RPM.
 Increase HR fan RPM gradually as per requirement.
ONE POINT LESSON ON HR FAN STARTING
TAKEN BY: PROSENJIT BHANDARY. Created By : Prosenjit Bhandary

13. Safety Precautions
Do's Don'ts
1. Always stay away from all moving equipments.
1. Don’t start HR fan without clearance of Mechanical
and Electrical department
2. If any abnormal sound then stop the fan.
2. Don’t start HR fan without getting clearance from TG
operator.
3. Keep an eye on HR inlet temperature (Not more than
3500C).
Procedure:
 Make sure all PTW is released.
 Ensure that no one is working in HR fan area.
 Ensure that all inspection doors are in close position.
 Ensure that process water pump is in running condition.
 Make sure bearing cooling water line all valves are in open position.
 Check water pressure and flow as per requirement.
 Ensure that all interlocks are in line.
 Start HR fan with minimum RPM.
 Increase HR fan RPM gradually as per requirement.
ONE POINT LESSON ON HR FAN STARTING
TAKEN BY: PROSENJIT BHANDARY
Created By : Prosenjit Bhandary

14. Safety Precautions
Do's Don'ts
1. Always stay away from all moving equipment.
1. Don’t start Conveying system without clearance of
Mechanical and Electrical department.
2. If any abnormal sound then stop the conveying. 2. If air pressure is low then stop the conveying system
3. if air pressure is low then stop the conveying system
1 .Make sure all PTW is released
2. Ensure that no one is working in Multicyclone area.
3. Ensure that all inspection doors are in close position
4. Ensure that all valve are in line
5. Ensure air pressure is sufficient
6. Check pipe line are fully cleared
7. Start conveying system
8. Ensure that all interlocks are in line
ONE POINT LESSON ON MULTICYCLONE CONVEYING SYSTEM
TAKEN BY: PROSENJIT BHANDARY
Procedure:
Created By : Prosenjit Bhandary