FIBROUS MATERIAL GRINDING APPARATUS Russian patent published in 2004 - IPC

FIELD: grinding equipment. SUBSTANCE: apparatus has casing, rotor, stator, and impeller equipped with disk having concentrically arranged through openings. Casing has insert joined with disk surface provided with through opening, which may be aligned with openings formed in disk and branch pipe, whose single axis defines angle of 75-89 deg with horizontal projection plane extending through center of impeller blades. Horizontal narrowing slot is formed on stator inoperating surface in the same plane, said slot being open toward blades. Impeller may be spring-loaded. Drive shaft may be equipped with device for regulating impeller spring-loading value and with insert clamp arranged at side opposite to joining plane. Apparatus is further provided with insert position regulating device. Insert may be provided with splines joined with slots formed on stator inoperating surface. EFFECT: intensified grinding process and improved quality of grinding of fibrous material. 6 cl, 5 dwg