ROLLER CRUSHER, WHEREIN AT LEAST ONE ROLL PROVIDED WITH FLANGE Russian patent published in 2017 - IPC B02C4/30 

FIELD: machine engineering.

SUBSTANCE: roller crusher comprises two parallel rolls rotatably mounted in opposite directions towards each other and separated by a gap. Each of the rolls having the first end and the second end comprises a flange attached to at least one of the ends of one of the rolls and extending in radial axis of the roll. The height of the flange above the outer surface of the roll is sufficient to cover the mentioned gap substantially along the crusher gripping angle. In this case, the flange on its inner side has a feeding structure which extends from the inside of the flange towards the other end of the roll.

EFFECT: pressure reduction at the edges of the rolls is prevented.

9 cl, 5 dwg