PORTABLE DEVICE FOR GRAIN AERATION Russian patent published in 2017 - IPC A01F25/08 

FIELD: agriculture.

SUBSTANCE: invention is intended for active aeration with atmospheric or heated air, or with a gas-air mixture of grain material in enclosed spaces, various containers or stored in the form of a collar on open currents. A portable device for grain aeration comprises a tubular structure with apertures. The open end of the tubular structure is connected to the discharging fan diffuser. The closed end of the tubular structure is made convergent. The tubular structure is made rigid in the form of a tube (5) with perforations. The discharging fan diffuser has a flange connection with a confuser. The confusor is connected to the tube. Knobs (6) are located at the top of the tube. A clear opening regulator (7) of the perforated part of the tube is located inside the tube. The convergent end (8) of the tube has an air deflector (9). The outer surface of the convergent part of the tube is equipped with an auger-type two-way screw (10). A rotary adjusting flap (12) is located between the mating of the spiral housing (11) wall of the fan and the flange connection of the discharging diffuser.

EFFECT: increased efficiency of aeration or drying of grain material.

2 dwg