What to Do When a Pulp Pump Fails in a Paper Mill

Pulp Pump Problems and How to Fix Them

On pulp and paper production lines, pulp pumps play a critical role in transporting pulp. Any issues that arise can range from disrupting the coordination between production stages to causing shutdowns and reduced output. Only by rapidly identifying the root cause can production be restored in the shortest possible time and the recurrence of similar faults prevented..

Pulp Pump Common Faults and Troubleshooting 

Insufficient flow/reduced head: Impeller wear or blockage, inlet pipeline blockage, seal leakage, or insufficient rotational speed → Inspect and replace the impeller, clear the pipeline, repair the seal, and adjust the speed.

Blockage: Lumpy materials, fibrous impurities, or slurry concentration/viscosity that is too high → Select appropriate impellers and flow passages, install an inlet filtration device, and control slurry concentration.

Seal leakage: Wear or aging of mechanical seal faces, or blockage of the seal flush water line → Replace seal components, clear the water line, and ensure seal water cleanliness.

Excessive shaft power: Pipeline blockage or excessive slurry concentration → Inspect the pipeline, adjust process parameters, or switch to a more suitable pump model.

Only by combining troubleshooting with preventive maintenance can pulp pumps operate continuously and stably within the pulp and paper making process, thereby providing a reliable guarantee for the continuous, efficient, and energy-saving operation of the production line. If you have any question, welcome email us.

Our email: leizhanmachines@gmail.com