Self-pressurizing ring groove mill

The utility model relates to a self-pressurizing ring groove grinder, a grinding board of which is divided into an upper grinding board (7), a middle grinding board (3), and a lower grinding board (9). The bottom surface of the upper grinding board (7) and the upper side of the middle grinding board (3) are respectively provided with a plurality of ring grooves and are provided with a plurality of ball-shaped grinding bodies (4), and the bottom of the middle grinding board (3) and the upper part of the lower grinding board (9) are also provided with the annular grooves and are provided with a plurality of the ball-shaped grinding bodies. The utility model is mainly used for grinding to materials in the building material industry and the mining industry, and the self-pressurizing ring groove grinder has the main characteristics of obvious energy saving effects, no dusting, low noise, and simple structure.