At present, most of the existing artificial sand production lines adopt wet production process. Regardless of any form of sand washing machine, its biggest disadvantage is the serious loss of fine sand (particles above 0.16mm), some even more than 20%, which not only loses output, but also seriously affects the grading of sand for artificial sand making, resulting in unreasonable grading and coarse fineness mesh, The product quality of manufactured sand is greatly reduced. Excessive fine sand discharge will also cause environmental pollution. The factory has successfully developed CS series fine sand extraction equipment in view of the above problems such as the loss of fine sand and the inability to treat the mud water for manual sand making, resulting in pollution.