Production process and production system for reducing mica content in machine-made sand

The invention relates to the technical field of sandstone preparation, and particularly discloses a production process and a production system for reducing mica content in machine-made sand, the production process comprises the following steps: S1, sand making: performing three-stage crushing and first-stage sand making on mother rock in sequence to obtain finished aggregate of each stage and the machine-made sand; s2, the machine-made sand obtained in the step S1 is subjected to wind power sorting, the machine-made sand is graded through wind power, the machine-made sand is separated to form coarse sand and a mica mixture, and the mica mixture is composed of stone powder and fine-grain mica; and S3, the mica mixture obtained in the step S2 is classified through a high-frequency screen, fine mica in the mica mixture is removed, screen underflow and the coarse sand prepared in the step S2 are evenly mixed, and finished machine-made sand with the mica content smaller than 2% is obtained. And the mica content in