GRAIN SEPARATOR Russian patent published in 2009 - IPC B07B9/02 

FIELD: agricultural industry.

SUBSTANCE: invention refers to agricultural engineering, and namely to the devices intended for separating grain mixtures into fractions according to their mechanical-and-physical properties, and can be used for after-harvesting grain processing, as well as for separating loose materials applied in other industries. Grain separator consists of a tank with a measuring device, cone-shaped sieves installed so that they can vibrate about a vertical axis, a central channel and an annular channel which are located coaxially, and a closed aspiration system which includes a fan, a discharge duct, an annular channel section, a suction channel and a cyclone. Measuring device is installed on the top of a cone-shaped distributor the lower base of which is provided with a replaceable ring which serves as a spring-board for grain flow. Under the cone-shaped distributor installed is an inverted cone with a cylindrical adjusting ring. In upper suction channel of the aspiration system there arranged is a convex area with an adjustable section area, under which installed is one or several discharge channels with adjusting shutters between them.

EFFECT: improving separating efficiency of grain flow as well as improving quality of and quantity of fractions obtained.

3 dwg