PLANT FOR THE GRAIN DRYING AND CLEANING Russian patent published in 1995 - IPC

FIELD: agriculture. SUBSTANCE: housing is mounted on the vibrating platform. Overfilling shelves with electric heaters are disposed inside the housing. The longitudinal section of the heaters has the triangular shape. Charging and discharging branch pipes are mounted in the upper and lower parts of the housing, correspondingly. The aspiration system is in communication with the upper part of the housing by means of a window. Infra-red sources are mounted on the lateral walls of the housing between the shelves. The corrugated plates with vertical ribs mounted checkered are located above the upper surface of the shelves. In this case the housing is made heat-insulated and air-tight in the shape of a truncated pyramid whose large base is turning downwards. The length of the shelves increases from the charging end to the discharging one. The heaters are mounted inside the corrugated plates. The upper and lower surfaces of the shelves and the interior lateral surface of the housing are made with the lining of the heat-reflecting material. The power of the heater of each following shelf, from the upper to the lower one, is than that of the proceeding shelf. Through the gate valve feeder in the charging branch pipe the grains are supplied on to the shelves with the curved end mounted at an angle to the lateral walls of the charging branch pipe. There the grains are interspersed. The dust-like particles are moved away through a window in the lateral wall of the branch pipe. The grains go to the plate of overfilling shelves, are shifted under the action of vibrations, are heated from the heater and are subjected to the infra-red action from emitters. As a result the grains are dried out and are purified. EFFECT: enhanced quality of cleaning due to the intensification of the thermal action. 6 cl, 2 dwg