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Eulerian-Lagrangian study of dense liquid-solid flow in an industrial-scale cylindrical hydrocyclone
Zhou, Quan1,2; Wang, Chuansong3; Wang, Hongbin3; Wang, Junwu1
2016-06-10
发表期刊INTERNATIONAL JOURNAL OF MINERAL PROCESSING
ISSN0301-7516
卷号151期号:JUNE页码:40-50
摘要Hydrocyclone has been widely used in particle separation processes. Extensive efforts have been devoted to studying the liquid-solid flow in conical hydrocyclone, however, studies on cylindrical hydrocyclone were much less, regardless of its industrial importance. To this end,an Eulerian-Lagrangian model, dense discrete phase model (DDPM), was used to simulate the complex liquid-solid flow in an industrial-scale cylindrical hydrocyclone, where Reynolds stress model (RSM) was used to model the turbulence of liquid phase due to its swirling nature, and then the numerical results were validated against the experimental data obtained from an industrial-scale cylindrical hydrocyclone. The validated model was then used to systematically study the effects of operating conditions as well as the geometry of cylindrical hydrocyclone on its separation efficiency. It was shown that (i) particle concentration at inlet had a remarkable influence on particle separation efficiency, but had a negligible effect upon processing capacity, expressed as the inlet volumetric flow rate of liquid-solid mixture; (ii) the increase of the length of vortex finder resulted in a slight decrease of separation efficiency and larger diameter of vortex finder led to increased mass flow rate through overflow and slightly decreased separation efficiency; (iii) increasing the height of cylindrical part resulted in a larger mass flow rate through underflow and better particle separation efficiency. Present studies indicated that DDPM method coupled with RSM was an effective tool for the design of liquid-solid hydrocyclone. (C) 2016 Elsevier B.V. All rights reserved.
关键词Hydrocyclone Dense Discrete Phase Model Computational Fluid Dynamics Multiphase Flow Particulate Processes Separation Efficiency
文章类型Article
WOS标题词Science & Technology ; Technology ; Physical Sciences
DOI10.1016/j.minpro.2016.04.005
收录类别SCI
语种英语
关键词[WOS]DISCRETE PARTICLE SIMULATION ; VORTEX FINDER ; FLUID-FLOW ; PARTICULATE SYSTEMS ; NUMERICAL-ANALYSIS ; CUT-SIZE ; AIR-CORE ; MULTIPHASE ; MODEL ; PREDICTION
WOS研究方向Engineering ; Mineralogy ; Mining & Mineral Processing
WOS类目Engineering, Chemical ; Mineralogy ; Mining & Mineral Processing
项目资助者National Natural Science Foundation of China(21422608 ; "863" Project of MOST(2012AA062301) ; 91334106)
WOS记录号WOS:000377927500005
引用统计
被引频次:9[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ipe.ac.cn/handle/122111/21149
专题多相复杂系统国家重点实验室
作者单位1.Chinese Acad Sci, Inst Proc Engn, State Key Lab Multiphase Complex Syst, Beijing 100190, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
3.Panzhihua Iron & Steel Grp, Min Res Inst, Panzhihua 617023, Sichuan, Peoples R China
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GB/T 7714
Zhou, Quan,Wang, Chuansong,Wang, Hongbin,et al. Eulerian-Lagrangian study of dense liquid-solid flow in an industrial-scale cylindrical hydrocyclone[J]. INTERNATIONAL JOURNAL OF MINERAL PROCESSING,2016,151(JUNE):40-50.
APA Zhou, Quan,Wang, Chuansong,Wang, Hongbin,&Wang, Junwu.(2016).Eulerian-Lagrangian study of dense liquid-solid flow in an industrial-scale cylindrical hydrocyclone.INTERNATIONAL JOURNAL OF MINERAL PROCESSING,151(JUNE),40-50.
MLA Zhou, Quan,et al."Eulerian-Lagrangian study of dense liquid-solid flow in an industrial-scale cylindrical hydrocyclone".INTERNATIONAL JOURNAL OF MINERAL PROCESSING 151.JUNE(2016):40-50.
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