The maintenance method for horizontal slurry pumps is a systematic and meticulous process designed to ensure the long-term stable operation of the pump and extend its service life. Here are some key maintenance methods:
Appearance and connection parts inspection: Before each use, carefully check whether the appearance of the horizontal slurry pump is damaged and whether the connection parts are tight. Pay attention to whether the inlet and outlet pipes of the pump have signs of blockage or leakage.
Bearing and lubrication system inspection: Regularly check the lubrication of the bearings to ensure that the bearings are well lubricated and there is no overheating, abnormal noise, etc. Check whether the oil level in the bracket is appropriate and whether the lubrication system is working properly. The maximum bearing temperature should not exceed 75°C.
Seal inspection: Regularly check the seals of the slurry pump, such as shaft seals, stuffing boxes, etc., to ensure that they are intact and leak-free. If the seal is found to be damaged or leaking, it should be replaced with a new seal in time.
Impeller and pump casing inspection: Regularly check the wear of the impeller. If the wear is severe, the impeller should be replaced in time. At the same time, pay attention to check the balance of the impeller to ensure its smooth operation.
Cleaning the inside of the pump body: Clean the inside of the pump body regularly, remove the sediment and impurities inside the pump body, and keep the inside of the pump body clean. During the cleaning process, clean water or special cleaning agents can be used for cleaning. After cleaning, the water inside the pump body should be wiped dry in time.
Replace lubricating oil: According to the use of the slurry pump, replace the bearing lubricating oil regularly. When replacing the lubricating oil, you should choose a suitable lubricating oil model and replace it according to the prescribed lubrication cycle. It is recommended to completely replace the lubricating oil after the pump has run for 800 hours.
Adjust the gap and fasteners: After the slurry pump has been running for a period of time, the current will slowly decrease. At this time, it is necessary to adjust the gap between the impeller and the rear guard plate to keep the distance between the two at 0.75~1.00mm. Check and tighten the fasteners of each component regularly to prevent loosening.
Avoid waterless or overloaded operation: Avoid running the slurry pump without water or overload, and start and stop the pump in strict accordance with the operating procedures.
Prevent blockage and leakage: Prevent metal objects, objects exceeding the maximum allowable particles, and long-fiber objects from entering the slurry pump to avoid blocking the flow channel. Check the shaft seal leakage frequently. When the packing gland becomes larger, adjust the packing gland bolts.
Spare pump management: The spare pump or the pump in a stagnant state must be manually rotated 90 degrees every week to ensure uniform load on the shaft.
Start and stop operation: Before starting the pump, connect the shaft seal water and cooling water, and then start the pump. After stopping the pump, turn off the shaft seal water and cooling water after 15 minutes.
Record maintenance: During the maintenance process, the maintenance situation should be recorded, including maintenance time, maintenance content, replaced parts, etc., for subsequent tracking and management.
In summary, the maintenance methods of horizontal slurry pumps involve daily inspections and patrols, regular maintenance and maintenance, and operating specifications and precautions. Following these maintenance methods can ensure that the horizontal slurry pump always maintains efficient operation, reduces maintenance costs, and improves production efficiency.
