Processing method of quartz sand of replaceable surface-layer shell-making zirconium sand

The invention discloses a processing method of quartz sand of replaceable surface-layer shell-making zirconium sand. The processing method comprises the following steps: a step I of cleaning raw gemstones by flushing; a step II of crushing the raw gemstones into small blocks with diameters lower than 4cm; a step III of granulating for grinding the small blocks into grains of 80-120 meshes through a stone rolling slot, and cleaning the grains with water; a step IV of screening out the particles of 80-120 meshes through a rotary screen; and a step V of roasting for putting the grains of 80-120 meshes obtained in step IV into a roasting furnace for roasting for 20-50 minutes at a temperature of 800-900 DEG C, and then cooling to room temperature, wherein the weight content of the silicon dioxide in the raw gemstones is greater than 99.5% and the iron element content is smaller than 0.5%. The invention aims to provide the processing method of quartz sand of replaceable surface-layer shell-making ...