DEVICE FOR GRINDING OF MATERIALS Russian patent published in 1994 - IPC

FIELD: mechanical engineering. SUBSTANCE: device comprises casing 1 with cover 2, loading pipe 3, conical baffle rings 4, and a pair of eccentrically-arranged wheels 6 and 6 with interconnecting end teeth 7 and 8 whose working surfaces are convex after the shape of a lemniscate. The means for fractionating and removing the ground material is constituted by calibrated holes between rings 4. Working surfaces of rings 4 form a common surface of a round truncated cone. The device is provided with an air-discharge system 14. EFFECT: improved design. 3 cl, 3 dwg