RHEOLOGY  OF  GAS-FLUIDIZED  BED

Acta Metallurgica Sinica (English Letters) ›› 1999, Vol. 12 ›› Issue (5): 1228-1233.

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RHEOLOGY OF GAS-FLUIDIZED BED

L. B. Wei1) and M. Y. Zhao2)1) Department of Chemical and Environmental Engineering , China University of Mining and Technology , Beijing100083 , China2) Department of Energy Utilization and Che mical Engineering , China University of Mining and Technology , Xuzhou 221008 , China

Received:1999-10-25 Revised:1999-10-25 Online:1999-10-25 Published:2009-10-10

Abstract

Abstract: Coal dry beneficiation with fluidized beds belongs to dry dense m ediu m concentration . Therheology is im portant for studying the behavior of an object settling in gas fluidized beds . Inthis paper , The viscosity of fluidized beds w as measured using falling spheres . The rheologi cal characteristics of fluidized beds can be described with Bingha m fluid m odel . The efficientviscosity of fluidized beds can be calculated and plastic viscosity and yield stress of fluidizedbed can be obtained by linearly regressing experi mental data . The calculated results are veryagreeable with the experim ental data .

Key words: dry beneficiation , fluidized bed , rheology

[1]	C.J. Sun, H.R. Geng, Y.S. Shen, X.Y. Teng, Z.X. Yang. Rheology Feature of Simple Metal Melt [J]. Acta Metallurgica Sinica (English Letters), 2007, 20(3): 181-186 .
[2]	LIN Jialiu ZHU Shigen YU Zhenzong Tsinghua University,Beijing,China. RHEOLOGICAL BEHAVIOURS OF CAST STEEL DURING SOLIDIFICATION [J]. Acta Metallurgica Sinica (English Letters), 1992, 5(8): 114-119.

RHEOLOGY OF GAS-FLUIDIZED BED

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