Mainly through the spiral installation in the equipment, the mixing of sand and gravel materials is stopped, so that the soil and water in the sand and gravel materials stop mixing and are discharged from the flow port on the equipment. The sand and gravel materials are gradually selected under the action of spiral installation and discharged from the top outlet, thus completing the cleaning and selection of sand and gravel materials. Suitable for cleaning, grading, and impurity removal operations in industries such as metallurgy, building materials, and hydropower, used for cleaning fine and coarse materials.
