CENTRIFUGAL STEPPED IMPACT CRUSHER Russian patent published in 2012 - IPC B02C7/08 B02C13/14 

FIELD: mining.

SUBSTANCE: proposed crusher comprises housing with load and discharge openings, several accumulation pockets on inner wall over housing height, distributor on housing top and extra accelerating rotary working member. The latter is composed of some sequential hollow tapes shaped inverted truncated cones with perforated surface and guide accelerating radial riffles. Tape outer edge is located level with the base of every accumulation pocket. Clearance between said edge and crusher housing does not exceed the preset crushing size. Said plates can revolve independently. Sizes of perforation differ and decrease from top to bottom for every plate depending upon required size of crushing. To accelerate discharge of crushed materials, wash-out water is forced in every pocket.

EFFECT: higher efficiency of crushing.

2 dwg