| 横向旋转磁场对液固流化床中铁磁颗粒成链旋转的影响 |
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| 引用本文： | 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]. 化工学报, 1999, 50(5): 692-699 |
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| 作者姓名： | 吕雪松 赵昱 李洪钟 |
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| 作者单位： | 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 |
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| 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.
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| 关 键 词： | 流态化 横向旋转磁场 铁颗粒 链长 |
IRON-PARTICLE CHAIN FORMATION AND ROTATION IN FLUIDIZED BED UNDER TRANSVERSE ROTATING MAGNETIC FIELD |
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| Lü Xuesong,Zhao Yu,Li Hongzhong. IRON-PARTICLE CHAIN FORMATION AND ROTATION IN FLUIDIZED BED UNDER TRANSVERSE ROTATING MAGNETIC FIELD[J]. Journal of Chemical Industry and Engineering(China), 1999, 50(5): 692-699 |
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| Authors: | Lü Xuesong Zhao Yu Li Hongzhong |
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| 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. |
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| Keywords: | fluidization transverse rotating magnetic field iron particle chain length |
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