MILL Russian patent published in 1994 - IPC

FIELD: grinding technology. SUBSTANCE: mill has a drive drum with helical blades and a milling charge. The helical blades are set in sections which are equidistant through the drum length and are turned relative to each other at an angle no less than 180°, the helical blades on the unloading side have splitters and may have an U-shaped profile. EFFECT: improved structure. 3 cl, 3 dwg