In recent years, the slurry pump products in addition to the requirements of long life, high efficiency and energy conservation, environmental protection, low cost and simple maintenance, also the pump performance and reliability of the higher requirements are put forward. In order to meet these requirements, should not only have excellent hydraulic design and structural design, the appropriate anti-wear materials and a high level of manufacturing quality, but also to do reasonable selection, material selection and correct use.
Slurry pump common failure cause analysis and elimination measures are the following:
1, the head is not enough, slurry pump outlet pressure can not meet the needs of the working condition: there are many causes of the failure: the long-term use of slurry pump cavitation, impeller after serious wear, motor rotation speed is lower than required by the slurry pump rotation speed, etc., can cause the decrease of slurry pump head. Increase the slurry pump inlet liquid level height or to reduce the slurry pump is installed, can prevent the occurrence of cavitation. Replace the wear of impeller, BHH Series Slurry Pump choose to match the slurry pump motor, is also one of the methods for troubleshooting.
2, motor overload operation: motor current is more than the allowable values. The slurry pump shaft bending deformation, the actual operation parameters is beyond the scope of slurry pump design parameters (such as large traffic operation), the moving parts are friction is the cause of the motor overload running. Check and correct the slurry pump shaft, with the valve control makes the operation parameters on the slurry pump, within the scope of admissible parameter, or open the slurry pump body eliminate friction is the key to solve the problem.
3, slurry pump is not out of the water, gravel pump industry usually due to impeller passage is sundry jam, slurry pump impeller in the opposite direction, running device lift beyond the scope of slurry pump design head. As long as the clear in time the impeller flow channel, to exchange the motor power, and to choose the appropriate type slurry pump can solve the problem.
4, bearing overheating: more than normal use temperature range of the bearing. Is usually caused by bearing box of oil or lubricating oil metamorphism bearing temperature anomalies. Updated after confirm the reason in a timely manner to add oil, lubricating oil, so as to avoid damage to the bearings. Secondly, the causes of bearing temperature are: different heart slurry pump shaft, motor shaft, slurry pump shaft bending deformation, etc. Use a dial indicator to measure slurry pump shaft in radial beat quantity, if it is a rolling bearing, beating the amount must not exceed 0.05 mm, slurry pump manufacturer usually if the sliding bearing, the pay gap should not be more than sliding bearing friction.
Post time: Jul-13-2021