滚筒端面对颗粒物料轴向混合过程影响的离散模拟

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侯全勋^1,2，董世杰^2,3，张泉⁵，冯勇进⁵，王晓宇⁵，刘晓星^2,4*

1. 中国矿业大学(北京)化学与环境工程学院，北京 100083
2. 中国科学院过程工程研究所多相复杂系统国家重点实验室，北京 100190
3. 中国石油大学(北京)重质油国家重点实验室，北京 102249
4. 中国科学院大学化学与化工学院，北京 100049
5. 核工业西南物理研究院，四川成都 610041

收稿日期:2019-01-11修回日期:2019-03-01出版日期:2019-10-22发布日期:2019-10-22
通讯作者:刘晓星

基金资助:国家自然科学基金委员会与中国工程物理研究院联合基金资助;国家重点研发计划

Discrete simulation of influence of drum end-wall on axial mixing behavior of granular material

Quanxun HOU^1,2, Shijie DONG^2,3, Quan ZHANG⁵, Yongjin FENG⁵, Xiaoyu WANG⁵, Xiaoxing LIU^2,4*

1. School of Chemical and Environmental Engineering, China University of Mining & Technology, Beijing 100083, China
2. State Key Laboratory of Multi-phase Complex Systems, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, China
3. State Key Laboratory of Heavy Oil Processing, China University of Petroleum, Beijing 102249, China
4. College of Chemistry and Chemical Engineering, University of Chinese Academy of Sciences, Beijing 100049, China
5. Southwest Institute of Physics, Nuclear Industry, Chengdu, Sichuan 610041, China

Received:2019-01-11Revised:2019-03-01Online:2019-10-22Published:2019-10-22
Contact:LIU Xiao-xing

Supported by:National Natural Science Foundation of China and the China Academy of Engineering Physics

摘要/Abstract

摘要： 基于离散单元法模拟了仅颜色存在差异的两组分颗粒物料在轴径比0.3的窄滚筒中的轴向混合过程，滚筒的左侧端面固定，右侧端面可随侧壁旋转。结果表明，不同物料装载量和滚筒转速下，在达到完全混合状态前，黄红颗粒物料初始轴向界面处可能出现3种不同的径向结构：黄?红结构、红?黄?红结构和红?黄结构。红?黄?红结构和红?黄结构工况下，固定端面一侧还可出现更复杂的多层三明治结构。径向结构源自滚筒端面效应导致的颗粒轴向对流，颗粒轴向速度在切向截面上的分布决定了径向结构的类型。

引用本文

侯全勋董世杰张泉冯勇进王晓宇刘晓星. 滚筒端面对颗粒物料轴向混合过程影响的离散模拟[J]. 过程工程学报, 2019, 19(5): 949-958.
Quanxun HOU Shijie DONG Quan ZHANG Yongjin FENG Xiaoyu WANG Xiaoxing LIU. Discrete simulation of influence of drum end-wall on axial mixing behavior of granular material[J]. Chin. J. Process Eng., 2019, 19(5): 949-958.

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