PLANETARY MILL Russian patent published in 2004 - IPC

FIELD: grinding devices.

SUBSTANCE: proposed planetary mill has vertical cylindrical housing with friction rings on inner surface and central shaft with upper and lower carriers secured on it. Mounted vertically in seats of carriers are grinding drums with transversal perforated partitions located under them; these partitions form working chambers. Mounted in center of bottom of each grinding drum is spherical support resting against bearing disk of lower carrier. Bearing disk may be provided with pivots. Bearing disk of carrier may be provided with holes. Size of these holes may decrease from upper working chamber to lower one. Each arm of carrier may be provided with pushing roller which is engageable with side surfaces of two adjacent grinding drums. Side surface of housing may be provided with hole corresponding to shape of grinding drums.

EFFECT: enhanced efficiency of grinding and activation of material.

6 cl, 2 dwg