FOOD GRAIN MATERIALS CLEANING METHOD Russian patent published in 2006 - IPC B07B4/06 

FIELD: multiple cleaning of food grain materials in filed of inertia-gravity forces according to their aerodynamic properties, possibly in agricultural and industrial complexes of food grain processing and food making industry branches.

SUBSTANCE: method comprises steps of introducing grain material into pneumatic separating duct rotating relative to vertical axis; blowing grain material by means of air flow directed against action of inertia forces; separating grain material in inertia-gravity field by fractions of heavy and light components; discharging fraction of light components together with air flow in direction opposite relative to direction of discharging fractions of heavy components. Separation of grain material by fractions is realized due to inclination of pneumatic separating duct relative to vertical axis at time period of falling heavy and light components on inner surface of pneumatic separating duct. Then heavy components are multiply moved on said surface till hard curvilinear surface for lifting heavy components along said surface and falling from it.

EFFECT: enhanced efficiency for separating grain materials.

5 cl, 1 dwg