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Size distribution in gas vibration bed and its application on grain drying

文献类型：期刊论文

作者Liu, Chuanping1; Wang, Li1; Wu, Ping1; Xiang, Fei2
刊名POWDER TECHNOLOGY
出版日期2012-05-01
期号221页码:192-198
关键词Size distribution Fluidized bed Grain drying
英文摘要By putting the binary mixture in vibration bed (u = 0), the large particles usually rise to the bed top, resulting "Brazil Nut" separation. Reversely, the large and heavy particles sink to the bed bottom in fluidized bed (u > u(mf)), resulting "Reverse Brazil Nut" separation. In this paper, a gas flow, which velocity is less than the minimum fluidized velocity (u < u(mf)), is introduced into a vibration bed from its perforated bottom. By analyzing the effects of gas velocity, vibration acceleration, size ratio and density ratio on size distribution of binary mixture, we have reached the conclusion that the "Brazil Nut" separation is strengthen by increasing the size ratio or decreasing the density ratio. The mixture could separate from "Brazil Nut" effect to its reverse with increasing the gas velocity or the vibration acceleration. Those conclusions are successfully applied on grain drying to solve the problems induced by the diameter differences between large grains and small ones. And an amended process is present in which much more energy can be saved than the traditional gas fluidized process. (C) 2012 Elsevier B.V. All rights reserved.
WOS标题词Science & Technology ; Technology
类目[WOS]Engineering, Chemical
研究领域[WOS]Engineering
关键词[WOS]FLUIDIZED-BEDS ; SEGREGATION ; SHAKER
收录类别SCI
语种英语
WOS记录号WOS:000303222300023
源URL[http://ir.etp.ac.cn/handle/311046/101546]  
专题工程热物理研究所_中国科学院工程热物理所（论文库）_期刊论文（SCI）
作者单位1.Univ Sci & Technol Beijing, Dept Phys, Beijing 100083, Peoples R China
2.Chinese Acad Sci, Inst Engn Thermophys, Beijing 100190, Peoples R China
推荐引用方式
GB/T 7714		 Liu, Chuanping,Wang, Li,Wu, Ping,et al. Size distribution in gas vibration bed and its application on grain drying[J]. POWDER TECHNOLOGY,2012(221):192-198.
APA Liu, Chuanping,Wang, Li,Wu, Ping,&Xiang, Fei.(2012).Size distribution in gas vibration bed and its application on grain drying.POWDER TECHNOLOGY(221),192-198.
MLA Liu, Chuanping,et al."Size distribution in gas vibration bed and its application on grain drying".POWDER TECHNOLOGY .221(2012):192-198.

入库方式： OAI收割

来源：工程热物理研究所

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