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Experimental study of transverse bed motion in rotary kilns

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Abstract

Slumping and rolling beds have been studied extensively in a continuous pilot kiln and batch rotary cylinders. Solids investigated include nickel oxide pellets, limestone, sand, and gravel. The effect of variables such as rotational speed, bed depth, cylinder diameter, particle size, and particle shape on bed motion has been determined. For a given material, the different modes of bed motion can be delineated conveniently on a Bed Behavior Diagram which is a plot of bed depthvs rotational speed. The scaling of bed behavior with respect to particle size and cylinder diameter requires similarity of Froude number modified by(D/d p)1/2, and pct fill. Measurements of key variables characterizing slumping and rolling beds have also been made.

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Authors and Affiliations

  1. Department of Metallurgical Engineering and Materials Science, Carnegie-Mellon University, 15213, Pittsburgh, PA

    H. Henein (Assistant Professor)

  2. Department of Metallurgical Engineering, The University of British Columbia, V6T 1W5, Vancouver, British Columbia, Canada

    J. K. Brimacombe (Stelco Professor of Process Metallurgy)

  3. Department of Chemical Engineering, The University of British Columbia, V6T 1W5, Vancouver, British Columbia, Canada

    A. P. Watkinson (Professor)

Authors
  1. H. Henein
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  2. J. K. Brimacombe
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  3. A. P. Watkinson
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Additional information

H. Henein, formerly Graduate Student, Department of Metallurgical Engineering, The University of British Columbia

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Henein, H., Brimacombe, J.K. & Watkinson, A.P. Experimental study of transverse bed motion in rotary kilns. Metall Trans B 14, 191–205 (1983). https://doi.org/10.1007/BF02661016

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  • DOI: https://doi.org/10.1007/BF02661016

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