Segregation in a stirred fluidized bed | Zendy

Zhang Z. | Zendy; Beeckmans J. M. | Zendy

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Segregation in a stirred fluidized bed

Author(s) -

Zhang Z.,

Beeckmans J. M.

Publication year - 1990

Publication title -

the canadian journal of chemical engineering

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.404

H-Index - 67

eISSN - 1939-019X

pISSN - 0008-4034

DOI - 10.1002/cjce.5450680606

Subject(s) - fluidized bed , mechanics , materials science , volume (thermodynamics) , rod , fluidization , thermodynamics , physics , medicine , alternative medicine , pathology

A bed of particulate solids supported by an upward current of gas can be stirred at moderate power input per unit volume using thin horizontal rods mounted on a vertical shaft. The bed is fluidized, but bubbles are suppressed below a critical value of the fluidizing velocity. Stirring increases bed bulk density and reduces the minimum fluidizing velocity. Segregation in a stirred fluidized bed is enhanced with both flotsam and jetsam tracer particles, but the rate of segregation is reduced with flotsam tracers. The stirred fluidized bed may be useful as a device for dry separation of solids.

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