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Studies on the separation performance for head feeding combine - (Part 2): terminal velocity of grain and wastes

机译：喂头联合收割机分离性能的研究-（第2部分）：谷物和废物的最终速度

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Part 1 presented the analysis of the air flow at non-material in grain separation tunnel. In order to discuss the behavior of grain and wastes in the flow of separation wind, it's very important to measure the terminal velocity of grain and wastes. This paper discussed to make flying of grain and wastes easy in the air flow by measuring the terminal velocity. In this result, it was proved itself difficult to separate grains with primary branches and straws in the grain tank from single grain, because the terminal velocity of grain with primary branches and straws was more than single grain. And it was plain the suitable limits of the separating wind velocity is from 2.3 m/s to 6.5 m/s in accordance with the result that the max limit of terminal velocity of released wastes from the suction fan was 2.3 m/s and the minimum limit of that of single grain was 6.5m/s.
机译：第1部分介绍了谷物分离隧道中非物料气流的分析。为了讨论谷物和废物在分离风流中的行为，测量谷物和废物的最终速度非常重要。本文讨论了通过测量最终速度来使谷物和废物的飞散易于在气流中进行。在该结果中，事实证明，很难将谷物储罐中带有初级分支和稻草的谷物与单个谷物分开，因为带有初级分支和稻草的谷物的最终速度要大于单个谷物。很明显，分离风速的合适极限是从2.3 m / s到6.5 m / s，这是因为从抽风机释放的废物的最终速度的最大极限是2.3 m / s，而最小的是单粒极限为6.5m / s。

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