PNEUMATIC SEPARATOR- CLASSIFIER Russian patent published in 2002 - IPC

FIELD: separation of aerodispersed materials with solid particles of 50 mcm and lesser; industries where classification is required in addition to separation. SUBSTANCE: proposed pneumatic separator classifier includes revolving rotary working members made in form of opposite taper run-on and run-off surfaces smoothly engageable over circles of maximum diameters, revolving body formed by sections coaxially embracing the rotary working members with contraction and diffuser annular gaps between body and taper run-on and run-off surfaces respectively; change sections of body with diffuser annular gaps between body and taper run-off surface are located in cascade pattern; outlet slits are located between edges of these sections. EFFECT: enhanced efficiency of separation; reduced power requirements; possibility of classifying dispersed material. 3 cl, 1 dwg