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Abstrakty
A method for the measurement of the spatial distribution of a gas hold-up and a three-phase mixture in a mechanical flotation cell is proposed. The proposed method is based on electrical impedance tomography (EIT). The method was tested in a 50 1 flotation cell. The gas hold-up distribution 5 presented at various values of the impeller speed and aeration rate. The measurement with three-phase mixture is carried out with an apatite pulp. In this case, the conductivity distribution of the three-phase mixture is calculated and presented.
Słowa kluczowe
Rocznik
Tom
Strony
41--45
Opis fizyczny
Bibliogr. 11 poz.
Twórcy
autor
autor
autor
autor
autor
- Department of Physics, University of Kuopio, Finland,, jari.kourunen@uku.fi
Bibliografia
- CHENEY M., ISAACSON D., NEWELL J.C., (1999) Electrical impedance tomography. SIAM Rev, Vol. 41, pp. 85-101.
- CILLERS J.J., WANG M., NEETHLING S.J., (1999), Measuring flowing foam density distribution using ERT, 1st World Congress on Industrial Process Tomography, Buxton l999, pp.l08-112.
- DEGLON D.A, EGYA-MENSAH D., FRANZIDIS J.P, (2000), Review of hydrodynamics and gas dispersion in flotation cells on South African platinum concentrators, Minerals Engineering, Vol. 13, pp. 235-244.
- HEIKKINEN L.M., KOURUNEN J., SAVOLAINEN T., VAUHKONEN P.J., VAUHKONEN M., (2006), Real time three-dimensional electrical impedance tomography applied to multiphase flow imaging, Measurement Science and Technology, Vol. 17, pp. 2083-2087.
- KAIPIO J.P., SOMERSALO E., (2005), Statistical and Computational Inverse Problems, Springer-Verlag, New York.
- KOH P.T.L. SCHWARZ M.P., (2006) CFD modeling of bubble-particle attachments in flotation cells, Minerals Engineering, Vol. 19, pp. 619-626.
- KOH P.T.L, SCHWARZ M.P, ZHU Y., BOURKE P., PEAKER R., FRANDIZIDIS J. P., (2003), Development of CFD models of mineral flotation cells, 3rd International Conference on CFD in the Minerals and Process Industries, CSIRO, Melbourne, Australia.
- KOURUNEN J., SAVOLAINEN T., HEIKKINEN L. M., LEHIKOINEN A., VAUHKONEN M., (2008) PXI-based electrical impedance tomography system for industrial use. Submitted to Measurement Science and Technology.
- SANWANI E., ZHU Y., FRANZIDIS J.-P, MANLAPIG E. V., WU J., (2006) Comparison of gas hold-up distribution measurement in a flotation cell using capturing and conductivity techniques. Minerals Engineering, Vol. 19, pp.1362-1372.
- TURUNEN J., RINNE A., GRÖNSTAD S., NIITTI, T., SCHOMMARZ K., (2007), How to transfer installed power efficiently into flotation performance, Conference proceedings: Flotation Cell Technology Conference.
- WANG M., DORWARD A., VLAEV D., MANN R., (2000), Measurements of gas-liquid mixing in a stirred vessel using electrical resistance tomography (ERT), Chemical Engineering Journal, Vol. 77, pp. 93-98.
Typ dokumentu
Bibliografia
Identyfikator YADDA
bwmeta1.element.baztech-article-LOD1-0020-0021