CENTRIFUGAL DISC GRINDER Russian patent published in 2023 - IPC B02C7/00 B02C13/20 

FIELD: material grinding.

SUBSTANCE: devices for grinding various materials, used in the production of construction materials, as well as in other industries. The grinder contains a cylindrical body 1 with loading 2 and unloading 3 branch pipes, oppositely rotating upper 4 and lower 5 discs. To the center of the lower horizontal disk 5 a distribution cone 7 is rigidly attached with a base with diameter equal to the diameter of the opening of the feed spout 2, from which radial blades 8 of rectangular cross section, as well as vertical L-shaped drives 9, one of the walls 10 of each of which is located perpendicular to the working surface of the radial blades 8 with a radial pitch exceeding 2D _max are rigidly attached on the lower horizontal disk 5 from the center to the periphery, where D_max is the maximum particle size of the crushed material, with a prismatic gap along the height of the radial blades 8 and vertical L-shaped drives 9, having an outer larger base and a smaller base, the size of which decreases from the center to the periphery from D_max to (0.1 ... 0.5)D_max, and in the side radial wall 11 and the corresponding radial blade 8 at the same radius from the center, rectangular radial cuts 12 and 13 in height, the radial size of which, as well as the height of the radial blades 8 and vertical L-shaped drives 9 decrease from the center to the periphery from D_max to (0.1...0.5)D_max, in rectangular radial cuts 12 and 13 with process radial gaps include rectangular vertical protrusions 14 located along radii corresponding to the radii of the location of rectangular radial cuts 12 and 13 and rigidly fixed along concentric circles together with radial blades 15 on the lower surface of the upper conical disk 4.

EFFECT: improving the efficiency of the grinding process.

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