CAS OpenIR  > 湿法冶金清洁生产技术国家工程实验室
Influence of Particle Size Distribution on Agglomeration/defluidization of Iron Powders at Elevated Temperature
Zhong, Yiwei1; Gao, Jintao1; Wang, Zhi2; Guo, Zhancheng1
2017
Source PublicationISIJ INTERNATIONAL
ISSN0915-1559
Volume57Issue:4Pages:649-655
Abstract

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.

KeywordIron Powder Fluidized Bed Defluidization Particle Size Distribution Particle Adhesion High Temperature
SubtypeArticle
WOS HeadingsScience & Technology ; Technology
DOI10.2355/isijinternational.1SIJINT-2016-487
Indexed BySCI
Language英语
WOS KeywordMinimum Fluidization Velocity ; Chemical-looping Combustion ; Defluidization Behavior ; Interparticle Forces ; Bed Agglomeration ; Gas Fluidization ; Reduction ; Sticking ; Alumina ; Ash
WOS Research AreaMetallurgy & Metallurgical Engineering
WOS SubjectMetallurgy & Metallurgical Engineering
Funding OrganizationNational 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 IDWOS:000400319400009
Citation statistics
Cited Times:4[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/22820
Collection湿法冶金清洁生产技术国家工程实验室
Affiliation1.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
Recommended Citation
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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