SUSPENSION OF SOLIDS BY BUBBLE AGITATION

被引：30

作者：

NARAYANAN, S

BHATIA, VK

GUHA, DK

机构：

[1] Department of Chemical Engineering, Indian Institute of Technology, Kharagpur

[2] Department of Chemical Engineering, University of British Columbia, Vancouver, British Columbia

来源：

CANADIAN JOURNAL OF CHEMICAL ENGINEERING | 1969年 / 47卷 / 04期

关键词：

D O I：

10.1002/cjce.5450470411

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

Using fundamental aspects of the fluid mechanics of a single particle, a relation for the velocity of liquid necessary to suspend solid particles in a shallow depth column is derived. This liquid velocity is developed by the movement of the gas bubbles inside the column with the potential energy dissipated by the bubble during its ascent taken as the gain in the kinetic energy of the liquid. This energy brings about sufficient liquid motion to suspend the particles. The corresponding superficial gas velocity to suspend all the particles present in the column is theoretically estimated and compared to experimental values of superficial gas velocities obtained for various solids concentrations. A set pattern of deviation is observed, and empirical correlations are suggested for predicting the superficial gas velocity to suspend a given amount of solid particles in liquid. Copyright © 1969 Canadian Society for Chemical Engineering

引用

页码：360 / +

页数：1

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