AIR SEPARATOR FOR CLEANING OF GRAIN Russian patent published in 2010 - IPC B07B7/00 

FIELD: technological processes.

SUBSTANCE: invention relates to air separators used to clean grain from light admixtures on grain processing mills with intrashop pneumatic transport. Air separator for cleaning of grain includes cylindrical body with preparation chamber arranged in upper part of body coaxially to it, forming stepped surface with circular slot gaps, cone-shaped insert arranged inside it, cylindrical body installed under cap and arranged with its larger base down, coupled with air separating channel limited by air distribution grid arranged in the form of cylinder, under cone insert in air separating channel in the centre there are coaxial receiving nozzles arranged for admixtures, inlet nozzle connected tangentially with preparatory chamber, receiver of light admixtures connected to fan, receiver of main grain fraction arranged in lower part of body. Body cap is arranged in the form of truncated cone. In central hole of its upper smaller base there is a receiving-supplying cylinder installed, connected to preparatory chamber formed by group of conical plates in the form of louver sieve of conical shape. Preparatory chamber is enclosed between cap and cone insert acting as grain distributor. To lower open end of receiving-supplying cylinder a circular conical guide plate is fixed, lower end of which is located in upper hole of conical louver sieve of preparatory chamber. Conical guide plate and louver sieve separate the space between cap and grain distributor into two parts.

EFFECT: increased efficiency of grain cleaning, reduction of dimensional size of separator along width, reduction of material and energy intensity.

2 cl, 2 dwg