SYSTEM FOR STABILIZATION OF TEMPERATURE IN OPERATION CHAMBER OF EXPLODED GRAIN PRODUCTION DEVICE Russian patent published in 2000 - IPC

FIELD: agriculture and food industry, in particular, for heat treatment of continuous grain flow or other sand materials. SUBSTANCE: device has temperature detector, working chamber, regulation device, heat exchanger, ventilator, air ducts, recirculation air duct, in which rotating valve is mounted. Rotating valve is driven by actuating mechanism. Regulation device has power supply, measuring bridge, first, second and third keys, contactless relay, pulse generator, setters of temperature value, temperature tolerance deviation, pulse duration and pauses of control signal. In addition device has feedback circuit element. EFFECT: increased precision of keeping temperature in operation chamber, prevention of grain burning, decreased usage of electric power. 2 cl, 16 dwg