Spiral Sand Washing Machine can clean and separate the soil and sundries in the sand and gravel. Its novel sealing structure, adjustable overflow weir plate and reliable transmission device ensure the effect of cleaning and dehydration. It is widely used in washing, grading, impurity removal, fine-grained and coarse-grained material washing and other operations in highway, hydropower, construction and other industries, especially suitable for sand and gravel for construction and road construction. The spiral stone washing machine is used for the desliming and screening operations of a large number of sand and gravel used in construction sites, sand and gravel plants, prefabrication plants and hydropower construction sites, and can also be used for ore sorting operations. It can effectively handle materials within 0-30mm, and can separate and wash the soil and ash powder on the materials into clean materials. The machine has the advantages of simple structure, easy maintenance and high washing efficiency.

When working, the material is evenly fed from the feeding box, and a certain amount of water is continuously injected into the main tank body. The transmission part drives the screw shaft to rotate at a certain speed, forcing the material to roll over in the tank body and move towards the discharge port. The fine-grained materials and impurities are discharged through the overflow weir with the overflow water. The coarse-grained materials are discharged from the discharge port, so as to realize the washing, classification, impurity removal and removal of the materials.