GRAIN DRYING DEVICE Russian patent published in 2014 - IPC F26B17/22 A23B9/08 

FIELD: heating, drying.

SUBSTANCE: invention refers to agricultural engineering, and namely to grain drying devices. A grain drying device includes a vertically installed cylindrical casing, the outer surface of which is coated with a heat-insulating material layer, a loading bunker, an unloading opening, a conveying working element coaxially installed inside the casing with possibility of rotation and made in the form of a screw, a cooling device consisting of a fan and an air pipeline, heating elements arranged on outer surface of the casing under the heat-insulating material layer between the loading bunker and the unloading opening. An unloading sleeve that is installed with a downward inclination is connected to the unloading opening. Upper part of the unloading sleeve is perforated; perforation diameter does not exceed minimum grain size. A return sleeve directed to the loading bunker is installed in lower part of the unloading sleeve. A damper is hinged in the connection point of the return and unloading sleeves. The fan is installed in upper part of the casing, perpendicular to it and opposite the unloading opening.

EFFECT: this device allows improving drying quality, as well as reducing metal consumption of the structure.

1 dwg