CENTRIFUGAL DISC GRINDER Russian patent published in 2023 - IPC B02C13/14 

FIELD: material grinding.

SUBSTANCE: devices for grinding various materials, used in the production of construction materials, as well as in other industries. The centrifugal disc grinder contains a cylindrical body 1 with loading 2 and unloading 3 branch pipes, oppositely rotating upper 4 and lower 5 discs. On the lower surface of the upper conical disk 4, radial rectilinear blades 7 of the same height are rigidly fixed; in the center of the lower horizontal disk 5, a vertical cylindrical storage 8 with through vertical cutouts 9 with a width exceeding 2D_max is rigidly fixed, where D_max is the maximum particle size of the crushed material, to the outer surface of the vertical cylindrical storage 8, between the side walls 10 and 11 of adjacent through vertical cutouts 9, there are evenly spaced radial rectilinear blades 12, 13 and 14, rigidly fixed on the lower horizontal disk 5, the minimum distance between which exceeds 2D_max, and the height of the radial rectilinear blades 12, 13, 14, located one after another opposite to the direction of their rotation, decreases from the center to the periphery, respectively, from 0.25 D_max to (0.1...0.2) D_max, from 0.5 D_max to (0.1…0.2)D_max and from D_max to (0.1…0.2)D_max, between the radial straight blades 7 and 12, 13, 14 of two disks 4 and 5 there are vertical gaps of different sizes, inside the vertical cylindrical storage device 8, rectilinear spreading blades 15 with a height of D_max are rigidly attached to the lower horizontal disk 5, the working surface of each of which is in the same plane with the rear sidewall 10 of the corresponding through vertical cutout 9 in the direction of its rotation, and the internal diameter of the vertical cylindrical storage device 8 equal to the inner diameter of the loading pipe 2.

EFFECT: grinder provides an increase in the efficiency of the workflow.

1 cl, 4 dwg