METHOD OF GRINDING MATERIAL IN ROUND ROLLER-TYPE MILL Russian patent published in 1999 - IPC

FIELD: equipment for grinding mineral clinker, slag and like materials. SUBSTANCE: method involves using round roller-type mill having at least one annular chute, roller positioned within chute and block disposed between roller and annular chute. Mill works at subcritical speed and under milling pressure exceeding 40 MPa. At the path zone, where compacted material is released from annular chute and comes into collision with agglomerates, block is positioned. Construction allows undesirable vibration or lateral roller shift to be avoided. EFFECT: increased efficiency, simplified construction and improved quality of ground material. 9 cl, 5 dwg