IMPACT-AND-CENTRIFUGAL SHREDDER Russian patent published in 2009 - IPC B02C7/02 

FIELD: agriculture.

SUBSTANCE: shredder mechanism consists of two disks, coaxially positioned and rotating in reciprocal directions; the disks have o-ring grooves represented by alternating triangular-shaped projections and cavities wherein blades are fixed. The cavities are trapezoid-shaped with the one disk projections apices offset relative to the other disk cavities blunt angles by the pitch distance (t) calculated from the expression: t=(h+S)×sinα where h is blade height; S is inter-disk clearance; α is the projection apex angle.

EFFECT: enhanced shredding process energy efficiency and shredder performance; improved quality of the finished product.

2 cl, 3 dwg