Fluidization behavior of glass beads under different vibration modules

The expansion of free bubbling gas fluidized beds has been investigated experimentally in a two-dimensional perspex-walled bed. Glass beads were fluidized with dried air at varying gas velocities, while the bed was vibrated at different frequencies, amplitudes and directions to study their effects o...

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Bibliographic Details
Published in:Advanced powder technology : the international journal of the Society of Powder Technology, Japan Japan, 2001-01, Vol.12 (4), p.559-575
Main Authors: Zhou, Tao, Kage, Hiroyuki, Funaoka, Shunpei, Ogura, Hironao, Matsuno, Yoshizo
Format: Article
Language:English
Subjects:
flow pattern
Fluidization
pressure drop
vibration
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Summary:The expansion of free bubbling gas fluidized beds has been investigated experimentally in a two-dimensional perspex-walled bed. Glass beads were fluidized with dried air at varying gas velocities, while the bed was vibrated at different frequencies, amplitudes and directions to study their effects on the fluidization quality. The experimental results showed that the particle flow pattern depends on the vibration direction, especially at superficial gas velocities less than the minimum fluidization velocity U mf. The effect of horizontal vibration on fluidization behavior of glass beads exists at superficial gas velocities less than U mf, while the effect of vertical vibration on fluidization behavior still exists even at higher superficial gas velocities than U mf.
ISSN:0921-8831
1568-5527
DOI:10.1163/15685520152756679