GRINDER Russian patent published in 2002 - IPC

FIELD: mechanical engineering. SUBSTANCE: grinder for nonmetallic materials has casing, rotor and splitting plate positioned above rotor so as to define angle of α=60 deg with tangent to rotor generatrix at point of intersection with straight line making continuation of splitting plate. Roll is positioned on spring-loaded lever behind splitting plate. Tray and detachable cover are positioned for relative displacement one with respect to another. Windows in tray side walls are axially aligned with windows in casing. Tray sloping wall and opposite detachable cover are converging toward rotor and are equipped with teeth inclined in material supplying direction. Grinder allows materials with different physicomechanical properties to be ground. EFFECT: increased efficiency and simplified construction. 2 cl, 3 dwg