Effect of Injected Air on the Rate of Flow of Solids

[+] Author and Article Information
T. A. Engh

Chemical Engineering Laboratory, The Technical University of Norway, Trondheim, Norway

J. Eng. Ind 91(2), 335-338 (May 01, 1969) (4 pages) doi:10.1115/1.3591569 History: Received July 26, 1968


Injected air facilitates flow of a noncohesive powder through an orifice. The effect of injected air on the flow rate of raw-mix powder (used in cement production) through an orifice has been measured. It is shown that the flow rate of noncohesive solids may be determined by an energy balance that includes the expansion energy of the air.

Copyright © 1969 by ASME
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