Patent ID: 8336797
Filing Date: 2012-12-25
Classification: B02C

Abstract:
1. A powder and granular material crushing and sizing apparatus in which a powder and granular material fed through an upper feeding opening of a casing is crushed and sized at gaps that are formed by peripheral-edge disc faces of a plurality of disc-like rotors disposed, at a predetermined spacing, on a horizontal drive shaft, and a plurality of stators disposed between lower peripheral edges of the plurality of disc-like rotors, and in which the crushed and sized powder and granular material is discharged towards a bottom discharge opening of the casing; wherein the drive shaft is supported in a cantilever manner on a bearing housing, the plurality of stators are disposed on a holder to make up a stator assembly, the stator assembly is detachably disposed in the bearing housing, an opening is formed on a side wall of the casing, the disc-like rotors and the stator assembly are housed via the opening, and the casing is detachably disposed on the bearing housing.