1. Starting:
Conduct corresponding checks before starting the pump.
Ensure the slurry pump is securely installed and all fixing bolts are tightened.
Pipelines and valves should have separate supports. Avoid applying excessive force when tightening the bolts at the flange to prevent damage to the sealing gasket.
Rotate the pump shaft in the correct direction to check for friction during impeller rotation. If friction is detected, adjust the impeller clearance accordingly.
Verify that the motor's rotation direction matches the pump's to prevent reverse rotation.
For direct rotation, ensure the slurry pump shaft is aligned with the motor shaft. For belt transmission, adjust the pre-tension of the triangular belt.
Install a detachable short pipe at the suction pipe of the slurry pump to facilitate future maintenance.
Inspect the shaft seal of the slurry pump as required.
2. Operation:
Monitor the pump's condition regularly during operation.
Check the shaft seal water supply frequently to ensure it is sufficient and the pressure is normal. Replace the packing gland and packing promptly to ensure clean water continuously passes through the slurry pump shaft.
Inspect the bearing components during operation. If the bearing temperature exceeds the normal range, stop the pump immediately and investigate the cause.
The impeller and guard plate of the slurry pump are subject to rapid wear, causing the clearance to increase, which affects the pump's performance and efficiency. Adjust the impeller position in a timely manner to maintain proper clearance and efficient operation. Replace worn parts if the wear is excessive.
3. Stopping:
Before shutting down the slurry pump, unless in special circumstances, pump a suitable amount of clean water through the pump to flush out any residual slurry. This prevents solidification or blockage that could affect normal pump operation.
Finally, shut off the pump, gate valve, and shaft seal water in sequence.
