Adjustable particle grinding machine

The utility model relates to the technical field of particle grinding, discloses an adjustable particle grinding machine, and solves the problems that the particle size of a finished product cannot be changed in the grinding process, the processing efficiency is low, the processing cost is high, and the processing precision and the processing quality are unstable. The first protection box is fixedly connected to the upper surface of the tank body; the second protection box is fixedly connected to the upper surface of the first protection box; the first rotating shaft is located in the tank body, the top end of the first rotating shaft movably penetrates through the upper surface of the tank body and extends upwards, and the first rotating shaft is rotationally connected with the tank body; the bearing is located in the first protection box, and the inner surface of the bearing is fixedly connected to the circumferential surface of the first rotating shaft; the conical grinding disc is fixedly connected to the