Good maintenance of slurry pumps can effectively extend their service life, reduce operating costs, and enhance production efficiency.
1.Keep the equipment clean, dry, free of oil stains, and leak-proof.
2.Check daily whether the oil level in the bracket is appropriate and if the lubrication system is functioning properly.
3.Pay attention to vibrations, abnormal noises, or other issues during pump operation, and address them promptly upon discovery.
4.During operation, the pump must not run empty. If the pump is emptied, severe vibration will occur, significantly reducing its service life.
5.Prevent metal objects, items exceeding the maximum allowable particle size, and long fiber objects from entering the slurry pump to avoid blockage of the flow channel.
6.Regularly inspect the shaft seal water valve's opening degree or detect the packing box's temperature to ensure the shaft seal water and cooling water have the correct pressure and flow rate. For pumps using grease packing, refuel 1–2 times daily to maintain proper lubrication of the packing.
7.Regularly check for water leakage at the shaft seal. If leakage increases, adjust the bolts of the packing cover. Replace the packing promptly when necessary.
8.For slurry pump packing, it is recommended to use carbon fiber impregnated with polytetrafluoroethylene or butter-boiled cotton thread packing. When the working pressure is less than 0.5 MPa, asbestos material packing can be used.
9.After a period of operation, the pump's current will gradually decrease. Adjust the gap between the impeller and the front guard plate to maintain a distance of 0.75–1.00 mm.
10.Regularly monitor the bearing temperature, which should not exceed 75°C.
11.Replace the lubricating oil thoroughly after every 800 hours of operation.
12.For backup pumps or those in a stagnant state, manually rotate the shaft 90 degrees weekly to ensure even load distribution.
13.If the pump remains idle for an extended period, flush it with backwash water before restarting.
14.Inspect the support system of the inlet and outlet pipelines to ensure that the pump body is not subjected to undue force.
15.Check whether the foundation of the slurry pump is secure.
16.Before starting the pump, first turn on the shaft seal water and cooling water. After stopping the pump, wait 15 minutes before turning off the shaft seal water and cooling water.
