The existing artificial sand production lines predominantly use wet-process technology. Regardless of the type of sand washing machine employed, a significant drawback is the severe loss of fine sand particles (above 0.14mm). In some cases, the loss exceeds 25%. This not only results in substantial losses but also severely affects the gradation of the sand, leading to unreasonable gradation, coarser fineness modulus, and significantly lowering the quality of the manufactured sand products. Excessive discharge of fine sand can also cause environmental pollution.

To address the aforementioned issues, our company has successfully developed a fine sand recovery unit. This system is a state-of-the-art fine material extraction unit, designed by integrating foreign technology with the actual conditions of sand powder. It is widely used in hydropower station aggregate processing systems, glass raw material processing systems, artificial sand production lines, coal preparation plant fine coal recovery, and environmental protection projects (slurry purification), effectively solving the fine sand recovery problem.