The spiral sand washer utilizes the principle that particles of different sizes and densities have different settling velocities in fluid: fine, low-density particles settle slowly, while large, high-density particles settle quickly. This separates dust and impurities from the sand. Under the uniform agitation of the spiral blades, it achieves the purposes of dewatering, removing impurities, and conveying.
The spiral sand washer features a long spiral body, especially its sealed design, simple structure, strong processing capacity, convenient maintenance and part replacement, and low moisture and mud content in the discharged sand. It is widely used in various ore mining industries.

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