Abstract
The mixing and segregation of spherical and flat-shaped particles of up to 15 mm volume equivalent diameter in beds of alumina have been studied by X-rays. Visual observations enabled the mechanism to be more fully understood and the analysis of 40 photographs (from 2.5 s and from 40 min. periods) enabled “instantaneous” and “time-average” segregation patterns to be determined. The effect of shape was shown to be relatively minor except where the large flat particles are, from density considerations, inherently flotsam. At low excess gas velocities, these particles remain on or near the distributor. A comparison of the present “time-averaged” segregation patterns and ones obtained previously by bed-sectioning showed good agreement between the two techniques.
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References
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© 1980 Plenum Press, New York
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Nienow, A.W., Cheesman, D.J. (1980). The Effect of Shape on the Mixing and Segregation of Large Particles in a Gas-Fluidised Bed of Small Ones. In: Grace, J.R., Matsen, J.M. (eds) Fluidization. Springer, Boston, MA. https://doi.org/10.1007/978-1-4684-1045-7_37
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DOI: https://doi.org/10.1007/978-1-4684-1045-7_37
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