Fundamental Research on the Adaptation of Grain Containers to High-moisture Grains

Abstract

　For the building of harvesting work systems adapted to high-moisture grains, we investigated the applicability of commercial grain containers to high-moisture grains and clarified the conditions of grain blockage. Accordingly, we measured the working time required for discharge with grain containers. In an iron container, when the moisture or foreign materials content exceeded 28 %w.b. or 1 %, respectively, the discharge stopped. To clarify the conditions of grain blockage, we investigated the conditions of grains during clogging. We found that a risk of bridging exists when the angle of repose exceeds 33° or the compressibility exceeds 6.7 %.