Metallurgical Transactions B

, Volume 14, Issue 2, pp 191–205 | Cite as

Experimental study of transverse bed motion in rotary kilns

  • H. Henein
  • J. K. Brimacombe
  • A. P. Watkinson
Process Control


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.


Metallurgical Transaction Rotational Speed Froude Number Shear Angle Rotary Kiln 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.


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Copyright information

© The Metallurgical of Society of AIME 1983

Authors and Affiliations

  • H. Henein
    • 1
  • J. K. Brimacombe
    • 2
  • A. P. Watkinson
    • 3
  1. 1.Department of Metallurgical Engineering and Materials ScienceCarnegie-Mellon UniversityPittsburgh
  2. 2.Department of Metallurgical EngineeringThe University of British ColumbiaVancouverCanada
  3. 3.Department of Chemical EngineeringThe University of British ColumbiaVancouverCanada

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