Gas holdup estimation in flotation machines using image techniques and superficial gas velocity
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- 作者：L. Vinnetta ; luis.vinnett@usm.cl" class="auth_mail" title="E-mail the corresponding author ; T. Ledezmaa ; M. Alvarez-Silvab ; K. Watersb
- 关键词：Flotation ; Gas holdup ; Gas dispersion ; Bubble surface area flux
- 刊名：Minerals Engineering
- 出版年：2016
- 出版时间：October 2016
- 年：2016
- 卷：96-97
- 期：Complete
- 页码：26-32
- 全文大小：552 K
文摘
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An indirect method for gas holdup estimation of flotation machines was proposed.
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The JG and the 2D area fraction occupied by bubbles was used in a linear model.
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The model showed good prediction capacity in laboratory and industrial scales.
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Industrial tests included mechanical cells (8.5–300 m3) and columns (42–160 m3).
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The model allowed estimating the εG in the range of 2.5–21.0%.