The fine sand recycling machine is composed of a dewatering screen, side liner, impeller separator, vacuum high pressure pump, cleaning tank, high return water tank, motor, and other components.

 The sand-water mixture enters the cleaning box and is cleaned by the impeller separator. After the sand and mud are separated, the sand and gravel enter the lower dewatering screen for dehydration treatment, and the wastewater (containing a large amount of fine sand, mud, dust, and other impurities) flowing out of the cleaning box is processed by the vacuum high-pressure pump is transported to the high-pressure separator, and the fine sand after centrifugal classification is sprayed to the upper layer of the dewatering screen through the sand settling nozzle for dehydration treatment, and the remaining waste water, mud, dust, and other impurities are discharged through the high-level return water tank. Coarse sand is produced from the upper layer, and fine sand is produced from the lower layer or mixed with coarse and fine sand.