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A. Yu. Firsov
A. Yu. Firsov

Articles

Without section
  • Date submitted
    2012-09-10
  • Date accepted
    2012-11-09
  • Date published
    2013-04-29

Modelling of thickening process in mineral processing

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The present paper is devoted to the research of a spatially one-dimensional model of flocculated suspensions in the clarifier–thickener. This model unites a theory of sedimentation– consolidation processes of flocculated suspensions, which leads to a strongly degenerate diffusion equation, with the discontinuous flux. The development of steady-state concentration pro- files in a continuously operated clarifier-thickener is described. Numerical examples for construction of steady-state profiles and their applications for comparisons different modes of operation, to the control of sediment height are presented.

How to cite: Zatulovskii K.A., Beloglazov I.N., Firsov A.Y. Modelling of thickening process in mineral processing // Journal of Mining Institute. 2013. Vol. 202 . p. 181.
Without section
  • Date submitted
    2000-07-03
  • Date accepted
    2000-08-09
  • Date published
    2001-12-20

Modeling of process equipment and process control systems of industrial furnaces for metal production

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A brief summary of the research and engineering work performed by professors, graduate students, and students of the Department of Furnaces, Control and Automation of Metallurgical Processes in 2000 is given. Two main directions of research activities were modeling of technological equipment for metal production and modeling of control systems for industrial metallurgical furnaces. In the first direction of research the following mathematical models were developed: converter conversion of smelting shop of Pechenganickel metallurgical plant; ore thermal smelting process; dissolution and liquation processes; waste water treatment using calcium hydrocarboaluminate. The technology of zinc-tin iron dust processing in a rotary kiln was also developed. A method of separating suspensions using LAROX PF press-filters was introduced. The second area of research includes works on development of spectral density method for synthesis of control systems with intermittent lag and on improvement of efficiency of manipulation of gas regimes in converters.

How to cite: Galnbek A.A., Beloglazov I.N., Vlasov K.P., Dubovikov O.A., Zaryanova O.V., Vyrubova T.F., Firsov A.Y., Turinskii Z.M., Ivanov E.A., Kadyrov E.D., Anashkin A.S., Lastochkina M.A., Milovidova I.Y., Golubev V.O., Klimentenok G.G., Bondarchuk A.M., Orishchuk A.A., Maksimets N.N., Spichak I.A. Modeling of process equipment and process control systems of industrial furnaces for metal production // Journal of Mining Institute. 2001. Vol. 147 . p. 171-179.
Metallurgy
  • Date submitted
    1994-09-02
  • Date accepted
    1994-11-07
  • Date published
    1995-09-12

Algorithms for indirect estimation of unmeasured parameters of aluminum electrolysis process

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Due to the insufficiency of operational technological control of the process of electrolytic aluminum production, its automated control has to be based on methods of indirect estimation of unmeasured parameters. An algorithm for estimating one of the most important non-measurable parameters - the current alumina concentration in the melt - from the measured electrical parameters with their nonlinear relationship has been developed.

How to cite: Khanukaeva D.M., Galnbek A.A., Fiterman M.Y., Firsov A.Y. Algorithms for indirect estimation of unmeasured parameters of aluminum electrolysis process // Journal of Mining Institute. 1995. Vol. 142 . p. 187-193.