Failure and maintenance of slurry pump
Mud pump is a single-stage single suction centrifugal pump, which is used in mining, papermaking, printing and dyeing, environmental protection, graphite, mica, gold, ceramics, oil refining, petroleum, chemical industry, farm, salt farm, iodine farm, dyeing and chemical industry, wine making, food, chemical fertilizer, coking and concentration plant, construction, marble factory, gold mine, mud, quicksand, mud pond, sewage pond and turbid liquid to send and suck thick slurry, loading and suspended substance Water operation can also be used for coal mine drainage and fluid containing mud. If it is combined with high-pressure water pump and water gun to form a hydraulic mechanization earthwork unit, it can be used as excavation and transportation of land leveling, dredging and chiseling of rivers and ponds, as well as air defense works in cities, and the following works.
Common faults of mud pump and Troubleshooting:
Mud pump fault 1: pump does not absorb water
Causes: insufficient filling and water diversion, air in the pump can not be discharged, air leakage in the suction pipe, large clearance between the front liner and the impeller
Solution: continue to pour water, check whether the pipeline leaks, adjust the clearance between impeller and front lining plate
Mud pump fault 2: slow water supply
Cause: the clearance between the front lining plate and the impeller is large, the outlet pipe cannot seal the air, and the exhaust is full
Solution: adjust the gap, adjust the outlet pipe and install the vacuum device
Mud pump fault 3: low outlet pressure and flow
Cause: there is air in the pump, the clearance between impeller and front lining plate is large, clutch is not closed tightly, impeller or lining plate is worn
Solution: empty the air in the pump, adjust the clearance, adjust the clearance of clutch friction plate, replacing the impeller or lining plate
Mud pump fault 4: pump vibration
Cause: the pump shaft is not concentric with the diesel engine (or motor), the impeller is unbalanced, and the bearing is damaged
Solution: adjust the concentricity, balance the impeller and replace the bearing
Mud pump fault 5: impeller journal wear fast
Causes: low head of high-pressure water pump, packing dislocation, pump shaft and rear cover are not concentric
Solution: replace the high pressure pump higher than the lift of mud pump, replace the packing and adjust the concentricity
Mud pump fault 6: pump wear fast
Causes: poor construction environment (large particles), long transportation distance and long water inlet pipeline
Solution: replace sand field, add afterburner, shorten the length of water inlet pipe and reduce cavitation
