GRINDER Russian patent published in 2004 - IPC

FIELD: mining and construction industry, in particular, equipment for grinding of rock samples.

SUBSTANCE: grinder has vertical grinding chamber with round section, rotor knife mounted in grinding chamber on coaxially arranged shaft, drive for rotor knife shaft, charging device, feeding cavity and classifier made in the form of partition wall arranged in the vicinity of rotor knife lower part, perpendicular to axis of rotation of rotor knife shaft, and outer edge tightly secured with grinding chamber side wall. Partition wall is provided with central aperture axially aligned with rotor knife shaft and adapted for directly connecting of grinding chamber with feeding cavity. Rotor knife shaft drive is positioned above grinding chamber. Central aperture of partition wall is free over the entire section for passage of ready product into feeding cavity.

EFFECT: increased efficiency and simplified construction.

14 cl, 9 dwg