CONICAL GRINDER Russian patent published in 2001 - IPC

FIELD: equipment for grinding of ore or other raw materials. SUBSTANCE: conical grinder has lower annular belt and ring-shaped comb attached to lower part of belt and provided with radial teeth directed to grinding cone with shaft mounted in eccentric sleeve. Similar comb is attached to grinding cone lower part so that its teeth are oriented in opposite direction. Combs are arranged one above the other. Comb teeth have triangular section and are inclined downward. Liners positioned at the level above upper comb are provided with radial ribs. Liner slots between ribs of lower annular belt are communicated via through openings with cavities positioned at rear side of liners and equipped with vapor branch pipes. Through openings in liners are inclined towards grinder working zone. EFFECT: increased grinding extent, provision for selective grinding and improved quality of preparing surface of particles of useful component. 2 cl, 2 dwg