GRINDER Russian patent published in 2023 - IPC B02C17/00 

FIELD: grinders.

SUBSTANCE: used in the chemical industry, agro-industrial complex, production of construction materials and other industries. The grinder contains loading 1 and unloading 2 devices, driving cylindrical drums 3 and 4, on the inner surfaces of which spiral guides in the form of profiled hollow elements are placed, transfer devices 5 and 6 connecting the end parts of the drums. Conical chambers 7 and 8 with spiral guides, made in the form of diffusers and confusers, respectively, are attached to the ends of the drums. In the central parts of the drive cylindrical drums 3 and 4, chambers 10 and 11 with through holes 12 of rectangular cross-section are installed. The holes 12 in one chamber are placed checkerwise, and in the other - circumferentially. Vibrators 13 are installed on chambers 10 and 11. In conical chambers 8, made in the form of confusers, cylindrical beaters 14 are attached to the spiral guides.

EFFECT: efficient grinding of materials without the use of grinding media.

1 cl, 4 dwg