PROTECTION FROM DUST OF HIGH PRESSURE MILL Russian patent published in 2017 - IPC B02C4/02 

FIELD: machine engineering.

SUBSTANCE: roller crusher contains two crushing rolls and a feeding device for feeding the material to be crushed. The crushing rolls are mounted substantially parallel to each other and rotatable in opposite directions. Each crushing roll has a shaft, the end sections of which are installed in roller bearings. The crusher additionally comprises a dust jacket surrounding the crushing zone and having an inlet and an outlet. The inlet is located along the material path above the crushing zone and communicates with the feeding device, and the outlet is located downstream of the crushing zone. The roller bearings are located outside the dust jacket. The dust jacket has two longer side walls and two shorter side walls. Each longer wall has shaft openings, the shape of which allows the rolls to move relative to each other, and each shorter wall contains an elastomeric material located at its lower edge to improve the effectiveness of the dust jacket.

EFFECT: dust is prevented from spreading in the crusher.

9 cl, 3 dwg