METHOD OF ACCEPTANCE AND CLEANING OF GRAIN HEAPS, GRAIN STORAGE AND COMPLEX TO THIS END Russian patent published in 2013 - IPC B07B9/00 

FIELD: process engineering.

SUBSTANCE: invention relates to agricultural equipment, particularly, to after-harvesting processing of grain heaps. Mix of grain heap with air is forced by ejector via lift pipe to main cyclone inlet for grain and heavy particles of wastes settle in the bin. Grain with impurities is fed from said bin via controlled gate to grain board to direct them via crimps of said board into horizontal airflow, a cyclone outlet airflow. Grain and impurities are separated in airflow at the set of selection auxiliary and intermediate flutes. Portion of impurities is collected in forage wastes chamber wherein air with volatile wastes is forced into appropriate cyclone and, from its outlet, to inlet of intake bin ejector blower. Grain fraction is fed onto sizing table wherefrom waste impurities are fed into forage waste chamber. Sized and cleaned grain is fed to funnels of at least one air drive grain thrower for it to force it to grain storage. Proposed complex comprises tank with aerodynamic space, at least one air blower, fraction collectors, at least one closed air circuit, intake bin connected with ejector, at least one cyclone with bin, grain board, blowing device, selection flutes, sizing table and at least one air driven grain thrower.

EFFECT: higher efficiency of grain cleaning.

20 cl, 4 dwg