Fine sand recycling machine is a fine sand extraction device which designed by absorbing foreign advanced technology according to the features of sand powder. It is formed by motor, slurry pump, cyclone ZKR linear vibrating screen, purge tank, refeed bin,etc. This machine is widely used in hydropower station sand aggregate processing system, glass raw material processing system, artificial sand production line, coarse coal slime recovery of coal preparation plant, concentrator tailings recycling and environmental protection engineering (mud purification) and so on, which can effectively solve the problem of fine sand recycling. 

Working principle
The working process is as follows: sand and water mixture is sent to the hydrocyclones by slurry pump, fine sand concentrated by centrifugal grading enrichment process goes to virbrating screen through underflow exit. After dehydration, fine sand separates from water, a little sand and mud goes back to the purge tank via refeed bin and when the liquid is at a high level, it overflows to the outlet. Material wight concentration recycled by linear vibrating screen is 70%-85%. The fineness can be adjusted by changing the pump revolving speed, mortar, water volume and the size of sand outlet mouth. So that to complete the three process of washing, dehydrating and grading.