Possibilities for flotation acoustics monitoring - A review

Vanegas, Carlos and Holtham, Peter N. (2010). Possibilities for flotation acoustics monitoring - A review. In: XXV International Mineral Processing Congress - IMPC 2010 'Smarter processing for the future. International Mineral Processing Congress 2010, Brisbane, Qld, Australia, (2457-2470). 6-10 September, 2010.

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Author Vanegas, Carlos
Holtham, Peter N.
Title of paper Possibilities for flotation acoustics monitoring - A review
Conference name International Mineral Processing Congress 2010
Conference location Brisbane, Qld, Australia
Conference dates 6-10 September, 2010
Convener Ralph J. Holmes
Proceedings title XXV International Mineral Processing Congress - IMPC 2010 'Smarter processing for the future
Place of Publication Carlton, VIC, Australia
Publisher Australasian Institute of Mining and Metallurgy
Publication Year 2010
Year available 2010
Sub-type Fully published paper
ISBN 9781921522284
Start page 2457
End page 2470
Total pages 14
Collection year 2011
Language eng
Abstract/Summary Flotation research has matured enough to provide models that are able to predict outcomes under different scenarios. In order to achieve practical applications these models require key measurable descriptors, such as gas dispersion indicators in the pulp phase and stability, coalescence rate and recovery in the froth phase. Currently, these descriptors are measured using tools such as video processing, conductivity and more primitive mechanical instrumentation. However, these techniques still are not offering an adequate level of on-line and in real time information at a low cost. One technique that might address these problems, which has not been sufficiently explored and that can offer advantages in cost and ease of processing, is acoustic monitoring. Consequently, the aim of this paper is to review acoustic monitoring techniques applied in diverse fields that could be transferred to the flotation area. Different acoustic properties and measurement methods are reviewed and suggestions are made for their potential use either in the pulp or froth zones. It is concluded that important parameters could be estimated using acoustic monitoring. These parameters include bubble size and gas hold-up in the pulp zone and coalescence rate, gas hold-up and solids/liquid concentration in the froth zone.
Keyword Acoustic
Q-Index Code E1
Q-Index Status Confirmed Code
Institutional Status UQ

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Created: Mon, 20 Dec 2010, 09:05:40 EST by Karen Holtham on behalf of Julius Kruttschnitt Mineral Research Centre