GRAIN CLEANING MACHINE Russian patent published in 2003 - IPC

FIELD: agricultural engineering, flour-milling and feed mill industry. SUBSTANCE: grain cleaning machine has aspiration system and shake mill. Aspiration system has pneumatically separating and settling chambers having common adjacent wall. Baffling surface is mounted in pneumatically separating chamber in spaced relation to its upper wall. Gate is pivotally secured on upper edge of baffling surface. Availability of baffling surface in pneumatically separating chamber provides for precise fractionation of grain material due to separating of middle-sized fraction in said chamber and individual discharge from separation zone of part of air flow carrying light fraction into settling chamber. EFFECT: increased efficiency in cleaning and sorting of grain material and simplified construction. 1 dwg