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Fluidization of CaCO3 and Fe2O3 particle mixtures in a transverse rotating magnetic field
Alternative TitlePowder Technol.
Lu, XS; Li, HZ
2000-01-24
Source PublicationPOWDER TECHNOLOGY
ISSN0032-5910
Volume107Issue:1-2Pages:66-78
AbstractUnder the action of a transverse rotating magnetic field, the fluidization behaviors of the Fe2O3 and CaCO3 particle mixtures were studied and the motion behaviors of the ferromagnetic particles of Fe, Fe2O3, and Fe3O4 were observed. The experiments showed that those ferromagnetic particles, which were placed in a beaker, exhibited four types of motion behaviors (vibrating, forming rotating chains, moving around the wall, and keeping still). The conclusion can be drawn by theoretical analysis of forces and energies that these motions could bring many benefits for fluidization of Geldart Type-C particles. The experiments demonstrated that the fluidization quality of Geldart Type-C particles could be improved by addition of ferromagnetic particles under the external field. It was found that the rotating frequency, field intensity, and volume fraction of magnetic particles were the important factors acting on the fluidization. When field intensity, volume magnetic particle fraction, and rotating frequency were 795.5 A/m, 10% and 5 Hz, respectively, the fluidization was in its optimal condition. The transverse rotating magnetic field affected the incipient fluidization velocity slightly for the mixture of 10% Fe2O3 and 90% CaCO3, but heavily for the mixture of 30% Fe2O3 and 70% CaCO3. (C) 2000 Elsevier Science S.A. All rights reserved.; Under the action of a transverse rotating magnetic field, the fluidization behaviors of the Fe2O3 and CaCO3 particle mixtures were studied and the motion behaviors of the ferromagnetic particles of Fe, Fe2O3, and Fe3O4 were observed. The experiments showed that those ferromagnetic particles, which were placed in a beaker, exhibited four types of motion behaviors (vibrating, forming rotating chains, moving around the wall, and keeping still). The conclusion can be drawn by theoretical analysis of forces and energies that these motions could bring many benefits for fluidization of Geldart Type-C particles. The experiments demonstrated that the fluidization quality of Geldart Type-C particles could be improved by addition of ferromagnetic particles under the external field. It was found that the rotating frequency, field intensity, and volume fraction of magnetic particles were the important factors acting on the fluidization. When field intensity, volume magnetic particle fraction, and rotating frequency were 795.5 A/m, 10% and 5 Hz, respectively, the fluidization was in its optimal condition. The transverse rotating magnetic field affected the incipient fluidization velocity slightly for the mixture of 10% Fe2O3 and 90% CaCO3, but heavily for the mixture of 30% Fe2O3 and 70% CaCO3. (C) 2000 Elsevier Science S.A. All rights reserved.
KeywordFluidization Transverse Rotating Magnetic Field Rotating Chain Type-c Particle Magnetic Particle
SubtypeArticle
WOS HeadingsScience & Technology ; Technology
URL查看原文
Indexed BySCI
Language英语
WOS KeywordGROUP-C POWDERS ; DYNAMIC BEHAVIOR ; FINE PARTICLES ; ACOUSTIC FIELD ; BEDS ; SYSTEM
WOS Research AreaEngineering
WOS SubjectEngineering, Chemical
WOS IDWOS:000084878000009
Citation statistics
Cited Times:33[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Version出版稿
Identifierhttp://ir.ipe.ac.cn/handle/122111/5938
Collection研究所(批量导入)
AffiliationChinese Acad Sci, Inst Chem Met, Multiphase React Lab, Beijing 100080, Peoples R China
Recommended Citation
GB/T 7714
Lu, XS,Li, HZ. Fluidization of CaCO3 and Fe2O3 particle mixtures in a transverse rotating magnetic field[J]. POWDER TECHNOLOGY,2000,107(1-2):66-78.
APA Lu, XS,&Li, HZ.(2000).Fluidization of CaCO3 and Fe2O3 particle mixtures in a transverse rotating magnetic field.POWDER TECHNOLOGY,107(1-2),66-78.
MLA Lu, XS,et al."Fluidization of CaCO3 and Fe2O3 particle mixtures in a transverse rotating magnetic field".POWDER TECHNOLOGY 107.1-2(2000):66-78.
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