METHOD OF COMBINED IMPART CRUSHING Russian patent published in 1998 - IPC

FIELD: disintegration and processing of rocks and ores. SUBSTANCE: method of combined impact crushing includes crushing of material by opposite impulses of working and reflecting members synchronized relative to each other. Directions of motion of particles imparted by working members at primary impact are oriented at angle of no less than 45 deg relative to each other; impact surface of reflecting members is oriented according to standards imposed on resultant direction of impulse converted by lumps of rock after collision; impact impulses of reflecting members are oriented relative to additional lower reflecting members oppositely along one axis. Particles form zone of opposite collision due to impulses transmitted to them which intersect at one point. First of all, collision of rocks is ensured after primary impact from symmetric working members on one side and from particles not fully crushed which move from reflecting members on other side. Rotation of working and reflecting members is controllable. EFFECT: enhanced efficiency. 6 dwg