GRAIN PRESERVATION APPARATUS Russian patent published in 1997 - IPC

FIELD: agriculture and food-processing industry. SUBSTANCE: apparatus has horizontal auger with hermetically sealed housing, grain charging and discharge device, pump with suction and pressure branch pipes, container with propionic acid provided with bubbler. Container is connected with auger housing and pump. Apparatus is further provided with heater, through which pump is connected via pressure branch pipe with container through bubbler. Suction branch pipe of pump is communicated with atmosphere through regulating gate and connected with auger housing so that recirculation circuit is formed. EFFECT: increased efficiency, simplified construction and enhanced reliability in operation. 1 dwg