Linking power and flow in rotor-stator mixers

被引：15

作者：

John, T. P. ^{[1
]}

Panesar, J. S. ^{[2
,3
]}

Kowalski, A. ^{[2
]}

Rodgers, T. L. ^{[1
]}

Fonte, C. P. ^{[1
]}

机构：

[1] Univ Manchester, Sch Chem Engn & Analyt Sci, Manchester M13 9PL, Lancs, England

[2] Unilever R&D, Port Sunlight Lab, Quarry Rd East, Wirral CH63 3JW, Merseyside, England

[3] CentDS Ltd, Nexus, Discovery Way, Leeds LS2 3AA, W Yorkshire, England

来源：

CHEMICAL ENGINEERING SCIENCE | 2019年 / 207卷

基金：

英国工程与自然科学研究理事会;

关键词：

Rotor-stator; Mixing; Power number; Flow number; CFD; ENERGY-DISSIPATION; DROP SIZES; DISPERSION; VELOCITY; BATCH; SHEAR;

D O I：

10.1016/j.ces.2019.06.039

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

The relationship between power and flow characteristics of batch rotor-stator mixers has been studied using CFD simulations with experimental power validation. The mixer studied was the Silverson L5M batch mixer with the standard emulsor head. The size of the holes in the screen and the constriction of the base hole were changed in small increments. The MRF technique was used to model rotor rotation. A model is developed in this study which links the power and flow numbers of the mixer. Since power is easy to measure experimentally, one can use this model to predict the flow number by measuring torque. A second model is also developed which allows one to predict the flow number using solely the geometry of the mixing head. This study greatly enhances our understanding of the relationship between power, flow and mixer geometry in rotor-stator mixers. (C) 2019 Elsevier Ltd. All rights reserved.

引用

页码：504 / 515

页数：12

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