Influence of Particle Size Distribution on Agglomeration/defluidization of Iron Powders at Elevated Temperature
Zhong, Yiwei1; Gao, Jintao1; Wang, Zhi2; Guo, Zhancheng1
2017
发表期刊ISIJ INTERNATIONAL
ISSN0915-1559
卷号57期号:4页码:649-655
摘要

The effects of particle size distribution (narrow, Gaussian, binary and flat) on high-temperature defluidization behavior of iron powder were investigated. The fluidization characteristics were studied involving minimum fluidization velocity, bubbling velocity and bed voidage. The thermo-mechanical analysis was applied to examine the sintering temperature and surface viscosity of iron powder due to surface softening. The results indicated that the effects of PSD on defluidizaton were dependent on temperature. The Gaussian distribution was favorable to fluidization and presented better fluidization quality at lower temperatures. However, at higher temperatures, the narrow distribution exhibited a higher defluidization temperature and thus a lower agglomeration tendency due to a larger apparent viscosity and lower particle stickiness. Therefore, the PSD apparently affected not only hydrodynamic behavior, but also particle adhesion of bed materials for defluidization.

关键词Iron Powder Fluidized Bed Defluidization Particle Size Distribution Particle Adhesion High Temperature
文章类型Article
WOS标题词Science & Technology ; Technology
DOI10.2355/isijinternational.1SIJINT-2016-487
收录类别SCI
语种英语
关键词[WOS]Minimum Fluidization Velocity ; Chemical-looping Combustion ; Defluidization Behavior ; Interparticle Forces ; Bed Agglomeration ; Gas Fluidization ; Reduction ; Sticking ; Alumina ; Ash
WOS研究方向Metallurgy & Metallurgical Engineering
WOS类目Metallurgy & Metallurgical Engineering
项目资助者National Natural Science Foundation of China(51604020 ; National Key Research and Development Program of China(2016YFB0601304) ; China Post-doctoral Science Foundation(2015M570931) ; Fundamental Research Funds for the Central Universities(FRF-TP-15-013A1) ; 91534121)
WOS记录号WOS:000400319400009
引用统计
被引频次:2[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/122111/22820
专题湿法冶金清洁生产技术国家工程实验室
作者单位1.Univ Sci & Technol Beijing, State Key Lab Adv Met, Beijing 100083, Peoples R China
2.Chinese Acad Sci, Natl Engn Lab Hydromet Cleaner Prod Technol, Inst Proc Engn, Beijing 100190, Peoples R China
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GB/T 7714
Zhong, Yiwei,Gao, Jintao,Wang, Zhi,et al. Influence of Particle Size Distribution on Agglomeration/defluidization of Iron Powders at Elevated Temperature[J]. ISIJ INTERNATIONAL,2017,57(4):649-655.
APA Zhong, Yiwei,Gao, Jintao,Wang, Zhi,&Guo, Zhancheng.(2017).Influence of Particle Size Distribution on Agglomeration/defluidization of Iron Powders at Elevated Temperature.ISIJ INTERNATIONAL,57(4),649-655.
MLA Zhong, Yiwei,et al."Influence of Particle Size Distribution on Agglomeration/defluidization of Iron Powders at Elevated Temperature".ISIJ INTERNATIONAL 57.4(2017):649-655.
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