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首页> 外文期刊>Advanced Powder Technology: The internation Journal of the Society of Powder Technology, Japan >Effect of adding a small amount of liquid on density-induced wet granular segregation in a rotating drum
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Effect of adding a small amount of liquid on density-induced wet granular segregation in a rotating drum

机译：添加少量液体对转鼓中密度引起的湿颗粒偏析的影响

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摘要

This study investigated the density-induced granular segregation phenomenon of wet granular materials in a quasi-2D rotating drum. The motions of the granular materials were recorded using a high-speed camera. Image-processing technology and the particle-tracking method were employed to measure the intensity of segregation, repose angle, and the velocities of heavy particles. We analysed the effects of the liquid content and rotation speed on the segregation index, angle of repose, and velocity of particles in the rotating drum. The experimental results reveal that the liquid content and rotation speed have significant influences on density-induced granular segregation behavior. The intensity of segregation is mitigated with a rise in liquid content because of the stronger cohesive force between particles. We also discuss the relationship between the intensity of segregation and the repose angle. (C) 2016 The Society of Powder Technology Japan. Published by Elsevier B.V. and The Society of Powder Technology Japan. All rights reserved.
机译：这项研究调查了准二维旋转鼓中湿颗粒材料的密度诱导的颗粒偏析现象。使用高速相机记录粒状材料的运动。采用图像处理技术和粒子跟踪方法测量偏析强度，休止角和重粒子的速度。我们分析了液体含量和转速对分离指数，休止角和转鼓中颗粒速度的影响。实验结果表明，液体含量和转速对密度诱导的颗粒偏析行为有重要影响。由于颗粒之间更强的内聚力，随着液体含量的增加，分离的强度得以减轻。我们还讨论了偏析强度与休止角之间的关系。 （C）2016日本粉末技术学会。由Elsevier B.V.和日本粉末技术学会出版。版权所有。

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