Common slurry pump failure: 　　 (1) the pump does not turn; 　　 (2) Insufficient pump flow; 　　 (3) Packing leaks; 　　 (4) pump vibration, noisy; 　　 (5) Bearing fever; 　　 (6) bearing life is short. 　　 Action: 　　 (1) The solidified hard-edged sediments in the volute can be removed by the blockage. 　　 (2) If the impeller or the inlet and outlet pipes are obstructed, the impeller or pipe may be cleaned. Such as impeller wear serious, should be replaced. Such as packing leakage, should be pressed packing. In view of these failure reasons, Yantai Xinhai Mining Machinery adopts advanced technology to research and develop a variety of slurry pumps, wear-resistant anti-corrosion, high lift, large flow rate, etc. The high transmission height, the pipe loss resistance is too large, reducing the conveying height or reducing the resistance , Widely used in various fields. 　　 (3) If the shaft and the tank with different materials, the main reason is the machining error, the installation is not correct. Care should be taken to check that the installation is correct after installation. Such as sealing water ring wear serious, need to replace the new water ring. Such as the sealed water pipe blocked, seal water can not enter the middle of the packing root wear fast, leading to leakage. To block the water pipes to clear, keep the seal water clean. 　　 (4) There are five main reasons: ①uneven media density. When the pump is just started, the vibration of the pump will disappear. This condition does not need to be dealt with. Just before driving, pay attention to blowing the medium with high-pressure air; ② The installation of the pump Not level. Check the level of the pump body during installation and operation. ③ cavitation, so that the pump impeller imbalance. Should reduce the installation height, adjust the outlet valve, reduce the import resistance. ④ suction tube inlet uneven. Should improve the pump feed conditions, and strengthen the uniform intake stability. ⑤ pump bearing clearance. Bearing clearance over the General Assembly led to large pump vibration, running in the daily operation of the pump should always observe the situation and found that the pump shaft and motor shaft or bearing damage is not timely treatment. 　　 (5) The main reason for the following 5:00: ①not open the cold water or cooling water tank clogging, cooling water should be opened or clear the cooling water feature. ② equipment lubrication is not good. Adjust the amount of lubricant according to the instructions. ③ lubricant is not clean, oil impurities. Should clean the bearings, for lubricating oil. ④ thrust bearing wrong direction. For the import pressure, adjust the thrust bearing direction. ⑤ bearing air outlet blockage, leading to the bearing box body of heat can not be discharged, so that equipment temperature. Air outlet should be cleaned. 　　 (6) There are four main reasons: ①motor shaft and pump shaft asymmetry or not parallel. The motor shaft or pump shaft should be adjusted to replace the shaft if it deforms or bends. ② bearing assembly is unreasonable. Replace the bearing and shaft, or replace the bearing. ③ pump friction or impeller out of balance. Should eliminate friction or replace the new impeller. ④ lubrication is not good. Excessive too little impurities will lead to bearing life is short, the bearings should be removed before use.