Level control strategies for flotation cells

Petteri Kämpjärvi, Sirkka-Liisa Jämsä-Jounela

    Research output: Contribution to journalArticleScientificpeer-review

    23 Citations (Scopus)
    403 Downloads (Pure)


    Flotation is a difficult process to run efficiently. One way to make flotation performance better is to improve cell level control. However, controlling pulp levels in flotation cells is a complex control task because of strong interactions between the levels in flotation cells. Therefore advanced controllers are needed to give good level control. This paper deals with a model of six flotation cells in series. Simulations are performed to compare different control strategies. Four control strategies are considered: one SISO controller and three different MIMO controllers including a new multivariable controller. It is shown that level control performances of the MIMO controllers are significantly better than that of the classical SISO controller.
    Original languageEnglish
    Pages (from-to)1061-1068
    JournalMinerals Engineering
    Issue number11
    Publication statusPublished - 2003
    MoE publication typeA1 Journal article-refereed


    • Flotation machines
    • froth flotation
    • process control
    • mineral processing

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