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In order to reduce the wear of the slurry pump and prolong the service life of the pump, measures can be taken from different angles, which can be considered from the aspects of design, material selection and pump selection and use.
1. Design aspects
Applying the dynamic principle and rheological characteristics of solid-liquid mixture, the hydraulic design and structural design of the pump flow parts are carried out, so as to conform to the movement law of the solid-liquid mixture in the pump flow channel, reduce eddy current and local loss, and reduce wear.

(1) According to the movement trajectory of solid particles in the solid-liquid mixture in the flow channel, design the blade profile and the shape of the flow channel.
(2) The cross section of the runner changes uniformly, reducing eddy current and secondary flow.
(3) The impeller outlet is designed to be concave.
(4) The relevant parts of the impeller and the pump body are appropriately thickened
(5) Metal and rubber sleeves are interchangeable, etc.

2. Material selection and surface coating
(1) According to the characteristics of the solid-liquid mixture and on-site use conditions, reasonably select the pump materials, apply value engineering analysis, and avoid excess functions.
(2) The overcurrent parts, especially the wearing parts (such as impeller and pump body or sheath, guard plate, etc.), are made of anti-wear materials (wear-resistant metal and non-metal).
(3) Nylon and various polymer materials are used to coat the worn surfaces and parts of the pump parts, so that the surface of the main material of the pump body is not worn.
(4) The coating technology is adopted to increase the protective layer and improve the anti-wear ability.

3. Reasonable selection and use of pumps
Reasonable selection and use is one of the important ways to reduce pump wear and prolong service life.
(1) According to the selection method and manual of the relevant pump, reasonably select the pump type that matches the on-site working conditions.
(2) When the pump is running, it should work in the optimal working condition area, which not only corresponds to the high efficiency area of ​​the pump, but also is in the area with the least amount of wear, an effective method to reduce the amount of wear when the pump runs within the limited working conditions.
(3) Under the condition of ensuring the basic requirements, the speed of the pump should be reasonably reduced. Using this method, the strength of cavitation and erosion wear can be reduced.