Fuzzy supervisory control of flotation columns

L. G. Bergh, J. B. Yianatos, C. A. Leiva

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38 Citations (Scopus)


The application of fuzzy logic to supervise a distributed basic control in a flotation column is discussed. The control strategies were studied and tested in a dynamic simulator of the process. Two control strategies were developed and tested to manage three basic distributed controllers: an expert supervisor, mainly based on rules following a binary logic, and a fuzzy supervisor. The objective function to be optimized was to keep the concentrate grade in a high band, subject to maintaining the process recovery over a minimum value. The supervisor takes into account the present state of the gas flowrate, the froth depth and the wash water flowrate, to make a decision. Simulated results are discussed. © 1998 Elsevier Science Ltd. All rights reserved.
Original languageEnglish
Pages (from-to)739-748
Number of pages10
JournalMinerals Engineering
Publication statusPublished - 1 Jan 1998

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    Bergh, L. G., Yianatos, J. B., & Leiva, C. A. (1998). Fuzzy supervisory control of flotation columns. Minerals Engineering, 739-748.