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Physical analysis and modelling of the Falcon concentrator for ultrafines beneficiation

Kroll-Rabotin, Jean-Sébastien and Bourgeois, Florent and Climent, Eric Physical analysis and modelling of the Falcon concentrator for ultrafines beneficiation. (2013) International Journal of Mineral Processing, vol. 121. pp. 39-50. ISSN 0301-7516

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Official URL: http://dx.doi.org/10.1016/j.minpro.2013.02.009

Abstract

A predictive model of the Falcon enhanced gravity separator has been derived from a physical analysis of its separation principle, and validated against experimental data. After summarizing the previous works that led to this model and the hypotheses onwhich they rely, the model is extended to cover a wide range of operating conditions and particle properties. The most significant development presented here is the extension of the analytical law to concentrated suspensions, which makes it applicable to actual plant operating conditions. Two examples of industrial use cases are described and studied by interrogation of themodel: dredged sediment waste reduction and coal recovery from fine tailings. Comparisons with empirical studies available in the literature show a good agreement between model predictions and industrial data. The model is then used to identify separation efficiency limitations as well as possible solutions to overcome them. These two examples serve to show how this predictivemodel can be used to obtain valuable information to improve physical separation processes using a Falcon concentrator, or to evaluate Falcon separator's abilities for new applications.

Item Type:Article
Additional Information:Thanks to Elsevier editor. The definitive version is available at http://www.sciencedirect.com The original PDF can be found at http://www.sciencedirect.com/science/article/pii/S0301751613000562
Audience (journal):International peer-reviewed journal
Uncontrolled Keywords:
Institution:French research institutions > Centre National de la Recherche Scientifique - CNRS (FRANCE)
Université de Toulouse > Institut National Polytechnique de Toulouse - INPT (FRANCE)
Université de Toulouse > Institut National des Sciences Appliquées de Toulouse - INSA (FRANCE)
Université de Toulouse > Université Paul Sabatier-Toulouse III - UPS (FRANCE)
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Deposited By: Eric CLIMENT
Deposited On:18 Oct 2013 08:01

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