Method for cleaning quartz sand

The invention relates to the technical field of quartz sand cleaning, and discloses a method for cleaning quartz sand, which comprises the following cleaning steps: conveying and feeding quartz sand to a feed port by using a conveying mechanism, simultaneously starting a fan, sucking dust and impurities from a ventilation port through an air inlet pipe, a filter cartridge and an air pipe, and discharging the dust and impurities from an air outlet pipe, a first electric push rod device is started to control reciprocating telescopic adjustment of a push rod, so that a buffer plate moves left and right, quartz sand raw materials slowly fall through a first through hole and are connected into a cleaning agent pipeline through a water inlet connector, acetone, oxalic acid and water are mixed and then are connected for cleaning, and the mixture is sprayed and cleaned on the inner side of a barrel through a plurality of cleaning nozzles; the material is discharged through a plurality of through holes II and gaps bet