DEVICE FOR FINE-CRUSHING AND MIXING OF PLASTIC MATERIALS, PRIMARILY, CLAY Russian patent published in 2011 - IPC B28C1/14 B02C18/16 

FIELD: process engineering.

SUBSTANCE: invention relates to construction, particularly, to device intended for preparation of clay mix material. Proposed device comprises case with loading bin, screw and actuator arranged in said case. Actuator comprises knives fitted on the shaft interleaving with grids made up of perforated disks with central opening secured in the case, and appliance for axial contraction arranged at actuator outlet. Outer cylindrical surfaces of the grids accommodate mounting elements interacting with elements that served to secure grinds in the case. Device incorporates thrust for knives. Each thrust is arranged ahead of appropriate knife on the material flow side, inside central opening of grid fitted ahead of said knife, and can be locked relative to the shaft. Note here that grid fixing elements are mounted to displace along the shaft and be locked relative to it.

EFFECT: higher reliability and service life thanks to fixed clearances between working surfaces of interacting knives and grids.

6 cl, 9 dwg