Suspending Conditions for a Smooth-Wall Mixer

被引：0
|
作者：
Domanskii, I. V. [1 ,2 ]
Mil'chenko, A. I. [2 ]
Sargaeva, Yu. V. [2 ]
Kubyshkin, S. A. [2 ]
Vorob'ev-Desyatovskii, N. V. [2 ]
机构：
[1] Tech Univ, St Petersburg State Technol Inst, St Petersburg 190013, Russia
[2] JSC Polymet, St Petersburg 198216, Russia
来源：
THEORETICAL FOUNDATIONS OF CHEMICAL ENGINEERING | 2023年 / 57卷 / 02期
关键词：
suspension; smooth-wall mixer; dynamic velocity; energy dissipation; tangential stresses; suspending conditions; stirrer rotation speed; PARTICLES; SUSPENSION; TANK;
D O I：
10.1134/S0040579523010037
中图分类号：
TQ [化学工业];
学科分类号：
0817 ;
摘要：
Based on the known assumption about the predominant effect of dynamic velocity on the detachment of solid-phase particles from a bottom, the suspending condition for a smooth-wall mixer is proposed. The importance of experimental dynamic-velocity measurements for a certain industrial suspension is emphasized. It is shown that the intensive tangential flow of a mixed suspension should be taken into account when calculating the dynamic velocity. The equation for calculating the minimum stirrer rotation speed to exclude the formation of a sediment on the bottom of a mixer is proposed. The equation is experimentally verified for mixers of laboratory and industrial scales in the mixing of L : S systems.
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页码：154 / 164
页数：11
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