Experimental Research of Corncob Rectangle Granaries in the Northeast Region

The northeast region is the main producing area of corn in China, which is chiefly planted, harvested, and stored by farmers. Before processed and sold, corn has to be dewatered for storage. Corncob storage is the primary form of corn storage, supplemented by grain storage. The big porosity of corncob storage is favorable for natural ventilation and dewatering. At present, there is a variety of granary types promoted and used in our country, and such granaries are designed and fabricated in the light of experience of the predecessors, lacking theoretical discussion and experimental research. Through experiments, the paper studies the in-store drying of rectangle granaries of different ventilation widths, and establishes the grain monitoring software/hardware system. Under the natural ventilation conditions, the paper conducts the analysis and study of moisture and ingredient quality changes of corncobs during the in-store drying period and after the drying, and presents some valuable references for in-store drying of corncobs stored in rectangle granaries and the reasonable optimization of granary structure.