Fluidization behavior of glass beads under different vibration modules

Authors: Zhou, Tao; Kage, Hiroyuki; Funaoka, Shunpei; Ogura, Hironao; Matsuno, Yoshizo

Source: Advanced Powder Technology, Volume 12, Number 4, 2001 , pp. 559-575(17)

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Abstract:

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.

Keywords: FLUIDIZATION; VIBRATION; FLOW PATTERN; PRESSURE DROP

Document Type: Original article

DOI: http://dx.doi.org/10.1163/15685520152756679

Publication date: 2001-12-01