CENTRIFUGAL DISK SHREDDER Russian patent published in 2020 - IPC B02C7/00 B02C13/20 

FIELD: disintegrators and crushing devices.

SUBSTANCE: invention relates to the various materials crushing devices and may be used in production of construction materials and other industries. Centrifugal disk crusher contains cylindrical casing 1 with loading 2 and unloading 3 nipples, oppositely rotating upper 4 and lower 5 disks. Lower disc 5 has upper conical surface with generatrix inclination to horizon exceeding angle of natural slope of material. Gap between upper conical surface of lower disc 5 and lower conic surface of upper disc 4 is uniformly reduced from center of discs 4 and 5 to their periphery. Angle is formed between the lower conical surface of upper disc 4 and the upper conical surface of lower disc 5, on which there are concentric horizontal steps 7 and 8 with tangentially located ribs 9 and 10 in direction of rotation of corresponding disc. Height of tangential ribs 9 and 10 on concentric horizontal ledges 7 and 8 uniformly decreases from the center of disks 4 and 5 to their periphery. Vertical gap between opposing tangential ribs 9 and 10 of two discs 4 and 5 and radial gap between adjacent vertical walls 11 and 12 of concentric horizontal recesses 7 and 8 of two discs 4 and 5 are uniformly reduced from discs center 4 and 5 to their periphery from D_max to (0.1...0.5) D_max, where D_max is the maximum size of the particles of the milled material. Radial width of each concentric horizontal ledge 7 and 8 and minimum distance between adjacent tangential ribs 9 and 10 in each concentric horizontal projection 7 and 8 exceeds D_max.

EFFECT: grinder provides increase in efficiency of process of crushing.

1 cl, 4 dwg