HAMMER CRUSHER Russian patent published in 2017 - IPC B02C13/04 B02C13/286 

FIELD: machine engineering.

SUBSTANCE: invention is intended primarily for grinding bulk materials with a low specific gravity, in particular straw, sawdust, husks and others. The hammer mill comprises a main and auxiliary loading throats, a hammer rotor (6) and a fan (4). The hammer rotor consists of axes, disks and hammers. The hammer rotor is located in the crushing chamber (5). The crushing chamber is limited by a sieve (9) and a vortex chamber (7) along the periphery and covers (1) from the ends. The loading throats are disposed in different directions and tangentially relative to the end face of the crushing chamber. The main throat (3) has the form of a diffuser. The auxiliary throat (2) has the shape of a confuser. The vortex chamber (7) is located in the zone of collision of the flows of the material to be ground from the differently directed necks.

EFFECT: improving the efficiency of material grinding and improving the uniformity of its granulometric composition.

3 dwg