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Grain separation and damage of an axial flow combine


, : Grain separation and damage of an axial flow combine. Canadian Agricultural Engineering 34(1): 49-53

The patterns for grain passing through the concave and separating grates of an axial-flow combine, and the gain damaged by threshing and separating, were determined for barley. Nearly 95% of the separated grain passed through the concave grates with 40% through the right-hand side. The patterns were largely independent of the feed rate, moisture content, helix angles of the transport vanes, rotor speeds and concave clearances; whereas the grain damage was independent of only the concave clearance and the vane angles. The percentage of skinned and broken kernels were small, rarely exceeding 5%.

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