fuyangby@126.com
86 15188770013
fuyangby@126.com
86 15188770013
1. Unstable traffic
The unstable flow rate of the slurry pump may be caused by leakage of the suction pipe or bottom valve, blockage of the inlet, leakage of the pipeline, air in the pump body, severe wear of the sealing ring or impeller, and other reasons. The solution includes checking the leakage sources of the suction pipe and bottom valve and promptly blocking them, cleaning the sludge or blockage at the inlet, timely discharging the air in the pipeline, inspecting and replacing severely worn sealing rings and impellers, adjusting the depth of the bottom valve according to the suction stroke of the slurry pump, cleaning the front pool and suction pipe, reducing the length below the elbow, or adding a mixing device to reduce slurry settling.
2. Cavitation phenomenon
Cavitation is one of the common problems with slurry pumps, usually caused by low pressure at the suction liquid level or high flow rate at the suction inlet. The general measures to solve the cavitation phenomenon include controlling the pressure of the suction liquid level, preventing the liquid level from being too low, controlling the flow rate of the suction port, ensuring that the slurry pump works at the specified tapping volume, ensuring that the suction valve is fully opened, and regularly cleaning the filter screen.
3. Sealing failure
Seal failure of slurry pump may occur during assembly, trial operation, or normal operation. Leakage during assembly is usually caused by damage to the friction pair of the dynamic and static rings, while sudden leakage during normal operation may be due to changes in working conditions or improper operation and maintenance. The solution includes observing whether the slurry pump leaks through static pressure testing during installation, replacing worn seals in a timely manner, standardizing the use of slurry pumps, conducting regular inspections, identifying the cause of abnormal situations, and making timely adjustments.
4. Unable to start
The inability to start the slurry pump may be due to power supply issues or mechanical failures of the water pump itself. Check the power supply situation, including whether the connector connection is secure, whether the switch contact is tight, whether the fuse is blown, and whether the three-phase power supply is missing phase. If it is a mechanical failure of the water pump itself, common reasons include tight packing, debris getting stuck between the impeller and the pump body, rust on the pump shaft, bearings, and leak reducing ring, and severe bending of the pump shaft. The solution includes loosening the packing, unclogging the drainage channel, disassembling the pump body to remove debris and rust, removing the pump shaft for calibration or replacing it with a new pump shaft.
5. Abnormal noise
If there is abnormal noise during the operation of the slurry pump, it may be due to transmission device failure, loose or excessively worn pump body, liquid reflux, or the presence of air. The solution includes identifying the cause of the malfunction, installing anti vibration pads to reduce noise, installing noise reducers or absorbers, checking for wear on components such as impellers and bearings, and timely maintenance, repair, or replacement.
6. Overheating of bearings
Overheating of slurry pump bearings may be caused by excessive or insufficient lubricating grease, impurities in the lubricating grease, or damaged bearings. The solution includes adjusting the amount of grease, cleaning the bearings, replacing them with new ones, or reassembling the bearings.
7. Decreased sealing performance
The decrease in sealing performance of slurry pumps may be due to damage to the sealing ring causing fluid leakage, or bearing aging or wear leading to a decrease in pump sealing performance. The solution includes replacing the sealing ring with a new one, inspecting and replacing the bearings to improve the sealing performance.
8. Unstable rotational speed
The unstable speed of the slurry pump may be due to excessive sliding of the rotor shaft or poor production process of the pump, resulting in unstable quality. The solution includes replacing the shaft with a new one to ensure the quality of the pump's production process.
Through the above methods, problems can be detected and solved in a timely manner during the commissioning process of the slurry pump, ensuring that the slurry pump can operate normally.
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(Editor in charge: Slurry Pump https://www.fuyangpumps.com/)
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