HOPPER-TYPE RECIRCULATING GRAIN DRYER Russian patent published in 2017 - IPC F26B9/06 

FIELD: agriculture.

SUBSTANCE: hopper-type recirculation grain dryer contains a drying chamber, a vertical screw, an unloading window with a cylindrical chute, a heater and a fan. The grain dryer is also provided with a vertical cylindrical hopper with the conical base, a discharge deflector of the spent drying agent, a spreading disc, a drying chamber formed by the inner surface of the hopper and the outer surface of the central section fixed coaxially with it. The lower part of the drying chamber is an active zone with the height H located between two conical perforated surfaces with the opening diameter less than the minimum grain size, one of which is the conical bottom of the drying chamber and the other is the reverse cone of the central section with the inclination angle of the surfaces to the horizontal plane α, equal to the maximum angle of the natural slope of the moist grain, inside which there is a casing of the transporting working member rotatably mounted and made in the form of a vertical screw with the spreading disk fixed thereto in the upper part.

EFFECT: reducing the exposure of grain drying, improving its quality and improving the sowing conditions.

1 dwg