Analysis And Preventive Measures For Overheating Of Horizontal Slurry Pump Bearings

Overheating of horizontal slurry pump bearings is a common problem, which may be caused by many factors. The following is an analysis of the causes of overheating of horizontal slurry pump bearings and corresponding preventive measures: Cause analysis 1. Cooling system problems: The cold water is not turned on or the cooling water tank is blocked, resulting in poor cooling effect. 2. Lubrication problems: Excessive or too little lubricating oil affects the lubrication effect. The lubricating oil is not clean and contains impurities, which increases friction. Poor or deteriorated oil reduces lubrication performance. 3. Bearing installation and wear: Incorrect bearing installation or improper clearance. Severe bearing wear affects running stability. 4. Shaft and transmission device problems: The shaft is bent and deformed, resulting in uneven bearing force. The transmission device is poorly aligned, and the pump and prime mover shafts are not on the same axis. 5. Other factors: The bearing outlet is blocked and hot air cannot be discharged. Problems with the sealing part, such as excessive water leakage and rapid wear of the packing. The temperature of the pumped medium is too high. The oil pressure is not enough during forced lubrication. Preventive measures 1. Ensure the normal operation of the cooling system: When the slurry pump is working, ensure that the cold water or cooling water tank is open normally. Regularly check whether the cooling water tank is blocked and clean it in time. 2. Optimize lubrication conditions: Adjust the oil volume according to the instructions to ensure the appropriate amount of lubricating oil. Use clean and good quality lubricating oil and replace it regularly. Regularly check the cleanliness and quality of the lubricating oil. 3. Correctly install and replace bearings: Correctly install bearings according to standards and adjust the appropriate clearance. Regularly check the wear of bearings and replace severely worn bearings in time. 4. Correct the shaft and transmission device: Regularly check the bending and deformation of the shaft, and straighten or replace the pump shaft in time. Realign the transmission device to ensure that the pump and prime mover shafts are on the same axis. 5. Other preventive measures: Regularly check whether the bearing outlet is blocked and clean it in time. Check whether the packing gland of the sealing part is too tight or too loose, and whether the packing is deteriorated or severely worn. Control the temperature of the pumped medium to avoid it being too high. In the forced lubrication system, ensure that the oil pressure is sufficient. There are many reasons for the overheating of the horizontal slurry pump bearing, which requires comprehensive analysis and prevention from multiple aspects such as cooling system, lubrication conditions, bearing installation and wear, shaft and transmission device, and other factors. By taking the above preventive measures, the risk of bearing overheating can be effectively reduced and the normal operation of the slurry pump can be ensured.