How To Avoid The Occurrence Of Cavitation In Wear-resistant Slurry Pumps!

2025-07-05

CNSME PUMP

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The wear-resistant slurry pump delivers a mixture of solid particles and water containing residue.But in principle, a slurry pump is a centrifugal pump, which is mainly used for the slurry transport of converter dust removal water, blast furnace gas washing water, continuous cast turbid circulating water, and rolled steel turbid circulating water systems.

After cavitation occurs in the slurry pump runner component, how to deal with it to prevent similar phenomena phenomena from happening again?We need to start with the accessories of the slurry pump to avoid the occurrence of cavitation of the slurry pump!

1. Use a double-suction impeller.

2. Increase the import area of \u200b\u200bthe impeller.

3. Increase the width of the blade import edge.

4. Increase the radius of curvature at the turning of the front and rear covers of the impeller.

5. The water inlet of the blade extends to the water-absorbing side.

6. The impeller uses cavitation-resistant materials.

7. Setting of the front inducer.

For existing wear-resistant slurry pumps, measures to prevent cavitation are as follows.

1. The cross-sectional change rate of the runner should be as small as possible, and the wall surface should be as smooth as possible.

2. Reduce the geometric water absorption height hg (or increase the geometric pouring height).

3. In order to reduce water absorption loss, try to increase the pipe diameter and minimize the length of the pipe, elbows and accessories.

4. Prevent long-term operation under large flow.

5. At the same speed and flow rate, a double suction pump is used. Due to the reduced inlet flow rate, the pump is not prone to cavitation.

6. When the pump is cavitated, the flow rate should be reduced or the speed should be reduced for operation.

7. The condition of the water-absorbing bottom shell of the wear-resistant slurry pump has an important impact on the cavitation of the pump.

8. For pumps operating under harsh conditions, cavitation-resistant materials can be used to avoid cavitation damage.

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