Theoretic Aspects of Seed Motion on Drum Surface of Electromagnetic Separation Machines

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The paper presents the main theoretical elements underlying the separation of seeds after their surface. Usually in the seed cleaning and sorting process by surface are used machines with electromagnetic or magnetic separation systems, which represent the main working elements. Based on the characteristic element which may rely make a difference in the seed surface separation process, it was developed a mathematical model of the smooth seed motion on the drum surface on an rotary cylinder in order to determine the seed detachment place and speed. Also in this paper, is made a theoretic analyze of smooth seed trajectory in free flight detached from the separation drum and it is assessed the collection area of loose seeds. On this basis were carried out case studies and numerical applications for three different working machines

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305-314

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October 2014

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© 2014 Trans Tech Publications Ltd. All Rights Reserved

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