Hydrocyclone performance for bentonite clay purification

被引：9

作者：

Gama, A. J. A. ^{[1
]}

Neves, G. A. ^{[2
]}

Barros, P. L. ^{[3
]}

Neto, A. T. P. ^{[3
]}

Alves, J. J. N. ^{[3
]}

机构：

[1] Univ Fed Campina Grande, Dept Phys, 882 Aprigio Veloso, BR-58429140 Campina Grande, Paraiba, Brazil

[2] Univ Fed Campina Grande, Dept Mat Engn, 882 Aprigio Veloso, BR-58429140 Campina Grande, Paraiba, Brazil

[3] Univ Fed Campina Grande, Dept Chem Engn, 882 Aprigio Veloso, BR-58429140 Campina Grande, Paraiba, Brazil

来源：

CHEMICAL ENGINEERING RESEARCH & DESIGN | 2020年 / 161卷

关键词：

Hydrocyclone; Bentonite clay; Computational fluid dynamics; Particle classification; Mathematical modeling; Simulation; SEPARATION PERFORMANCE; FLOW; CFD; SIZE; EFFICIENCY; MECHANISM; MODEL;

D O I：

10.1016/j.cherd.2020.07.005

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

This work evaluates the performance of commercial hydrocyclone for removing contaminant larger particles (silt fraction) in bentonite clays, which improves its commercial value. A steady-state Eulerian-Eulerian 14-phases CFD model was verified with experimental data. The model was further used to simulate the effect of geometry and operational conditions on the recovery efficiency of fine clay fraction in the overflow. Simulation results provided data on the global fine recovery efficiency and granulometric distribution in the hydrocyclone overflow. An empirical correlation to calculate the clay volume fraction as a function of the hydrocyclone pressure drop as well as the characteristic constant parameter of the hydrocyclone family were obtained. Finally, a scale-up study was performed and the effectiveness of scaled up industrial hydrocyclones was obtained. (C) 2020 Institution of Chemical Engineers. Published by Elsevier B.V. All rights reserved.

引用

页码：168 / 177

页数：10

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