IRON-PARTICLE CHAIN FORMATION AND ROTATION IN FLUIDIZED BED UNDER TRANSVERSE ROTATING MAGNETIC FIELD

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IRON-PARTICLE CHAIN FORMATION AND ROTATION IN FLUIDIZED BED UNDER TRANSVERSE ROTATING MAGNETIC FIELD

Lü Xuesong, Zhao Yu and Li Hongzhong(Multiphase Reaction Laboratory, Institute of Chemical Metallurgy, Chinese Academy of Sciences, Beijing 100080)

Online:1999-10-25 Published:1999-10-25

横向旋转磁场对液固流化床中铁磁颗粒成链旋转的影响

吕雪松,赵昱,李洪钟

中国科学院化工冶金研究所多相反应开放实验室!北京100080,中国科学院化工冶金研究所多相反应开放实验室!北京100080,中国科学院化工冶金研究所多相反应开放实验室!北京100080

Abstract

Abstract: Iron - particle chain rotation was studied in water-iron-stainless steel particle fluidized bed under transverse rotating magnetic field. Experimental results showed that the bed behavior had two marked features:①Chains formed by iron particles under low rotating frecpiency; ②Vibrating fluidized bed caused by rotating magnetic field. The factors affecting chain length such as rotating frequency, magnetic field intensity, flow rate and particles addition, were reported.

摘要： <正>朱庆山研究表明,把铁颗粒添加到粘性粉体中,在轴向磁场的作用下,铁颗粒能够成链.Penchev和Hristov研究了横向磁场中铁磁颗粒流态化后,指出横向磁场流态化的一个主要特征也是磁链流态化.不过,这些研究只注重磁场流态化的一些本征特征,没有考虑通过磁场的变化改变磁链长度和磁链运动的方式,进而改善流化的质量.可以设想,如果这样的磁链放在横向均匀旋转磁场中使其自旋,那么自旋的颗粒链就能够对流化的颗粒起到搅拌和混合的作用,因而能够提高流态化的质量.

CLC Number:

TQ021.9

Lü Xuesong, Zhao Yu and Li Hongzhong(Multiphase Reaction Laboratory, Institute of Chemical Metallurgy, Chinese Academy of Sciences, Beijing 100080). IRON-PARTICLE CHAIN FORMATION AND ROTATION IN FLUIDIZED BED UNDER TRANSVERSE ROTATING MAGNETIC FIELD[J]. .

吕雪松,赵昱,李洪钟. 横向旋转磁场对液固流化床中铁磁颗粒成链旋转的影响 [J]. CIESC Journal.

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