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17

2023

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02

How to solve the unstable flow rate of the quality slurry pumps for alumina process

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The reasons for the unstable flow rate of the quality slurry pumps for alumina process are roughly as follows:
1. The suction pipe or the bottom valve leaks, or the water inlet is blocked, which is a common cause of insufficient flow. It is necessary to check the air leakage source of the suction pipe and the bottom valve and block it in time, or clean up the silt or blockage at the water inlet.
2. If the voltage is too low, the speed of the quality slurry pumps for alumina process will decrease, resulting in insufficient flow of the slurry pump. At this time, the power supply voltage should be checked and adjusted in time.
3. There is air leakage in the pipeline or there is air in the pump body. At this time, the air in the pipeline can be discharged in time.
4. Severe wear of the sealing ring or impeller will also lead to unstable flow of the quality slurry pumps for alumina process. The severely worn sealing ring and impeller should be checked and replaced in time.
5. The depth of the bottom valve into the water is insufficient, causing air to enter during pumping. The depth of the bottom valve should be adjusted according to the suction lift of the quality slurry pumps for alumina process.
6. If the quality slurry pumps for alumina process works normally after starting for a period of time, but then the current gradually drops, and the flow rate is obviously insufficient, and this problem still occurs after restarting for a period of normal operation, most of it is due to the accumulation of slurry or other sundries in the suction pipe. Cavitation occurs in the quality slurry pumps for alumina process. When it is serious, there will be a lot of noise in the slurry pump and the vibration of the pump head is obvious. At this time, the forebay and suction pipe should be thoroughly cleaned, the length below the elbow should be reduced, or a stirring device should be added to reduce slurry settlement.

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