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Hydrodynamic behavior of magnetized fluidized beds with admixtures of Geldart-B magnetizable and nonmagnetizable particles
Zhu, Quanhong1,2; Li, Hongzhong1; Zhu, Qingshan1; Li, Jun1; Zou, Zheng1
2016-12-01
发表期刊PARTICUOLOGY
ISSN1674-2001
卷号29期号:DEC页码:86-94
摘要

This work focuses on the hydrodynamic behavior of admixtures of Geldart-B magnetizable and non magnetizable particles in a magnetized fluidized bed. The applied magnetic field was axial, uniform, and steady. In operating the beds, the magnetization-LAST mode was adopted under which four distinct flow regimes exist: fixed, magnetized-bubbling, partial segregation-bubbling, and total segregation-bubbling. The operational phase diagram was drawn to display-the transitions between flow regimes in an intuitive manner. Only in the magnetized-bubbling regime could the magnetic field reduce the bubble size and improve fluidization quality. In the segregation-bubbling regimes, fluidization quality deteriorated as segregation developed. The segregation of the binary mixture was quantitatively studied by observing pressure drops in the local bed. Reasons for the improvement in fluidization quality as well as the occurrence of segregation were analyzed. Furthermore, the flow regime transition under magnetization-LAST operation mode was different from that under magnetization-FIRST mode. The magnetically stabilized bed (MSB) flow regime, which could be easily created under magnetization-FIRST mode, could no longer be achieved under magnetization-LAST mode. With the admixture, the MSB was proved to be a metastable equilibrium state. Under the magnetization-LAST mode, the admixture bed reached directly the stable equilibrium state bubbling with segregation. (C) 2016 Chinese Society of Particuology and Institute of Process Engineering, Chinese Academy of Sciences. Published by Elsevier B.V. All rights reserved.

关键词Magnetized Fluidized Bed Admixture Magnetization-last Flow Regime Hydrodynamic Segregation
文章类型Article
WOS标题词Science & Technology ; Technology
DOI10.1016/j.partic.2015.12.010
收录类别SCI
语种英语
关键词[WOS]MAGNETICALLY STABILIZED BEDS ; FIELD ASSISTED FLUIDIZATION ; MAGNETOFLUIDIZED BEDS ; UNIFIED APPROACH ; MIXTURES ; SIMULATION ; VELOCITY ; PURE ; FLOW
WOS研究方向Engineering ; Materials Science
WOS类目Engineering, Chemical ; Materials Science, Multidisciplinary
项目资助者National Natural Science of China(21325628) ; National Natural Science Foundation of China(91334108 ; U1462128)
WOS记录号WOS:000389114700008
引用统计
被引频次:1[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/122111/21681
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 Multi Phase Complex Syst, POB 353, Beijing 100190, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
推荐引用方式
GB/T 7714
Zhu, Quanhong,Li, Hongzhong,Zhu, Qingshan,et al. Hydrodynamic behavior of magnetized fluidized beds with admixtures of Geldart-B magnetizable and nonmagnetizable particles[J]. PARTICUOLOGY,2016,29(DEC):86-94.
APA Zhu, Quanhong,Li, Hongzhong,Zhu, Qingshan,Li, Jun,&Zou, Zheng.(2016).Hydrodynamic behavior of magnetized fluidized beds with admixtures of Geldart-B magnetizable and nonmagnetizable particles.PARTICUOLOGY,29(DEC),86-94.
MLA Zhu, Quanhong,et al."Hydrodynamic behavior of magnetized fluidized beds with admixtures of Geldart-B magnetizable and nonmagnetizable particles".PARTICUOLOGY 29.DEC(2016):86-94.
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