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2011-Sustainable Industrial Processing Summit
|Flogen Star OUTREACH
|2291-1227 (Metals and Materials Processing in a Clean Environment Series)
Questions of the mathematical exposition of gas dynamics, heat exchange, mass exchange and the reduction phenomena in the dense bed, occuring at blast furnace smelting in their interrelations, and applications of the mathematical exposition for studying the processes determining reduction of metals from iron ores are considered. The condition of non-uniform two-dimensional movement is taken into account at the formulation of a problem of movement of gas. The account of the phenomena gas dynamics in addition to the phenomena heat and mass transfer and reduction of metals from oxides has allowed to use the module of velocity of gas at the analysis of the last. The integral transfer coefficient depending on coefficient of interior diffusion is injected into combined equations of mass transfer and reduction. Influence of magnitude of an integral transfer coefficient on character of two-dimensional fields - degrees of reduction of iron and concentration potentials of gas in shaft of a blast furnace is investigated. Processes of reduction define economy of blast furnace smelting. Examples of practical use of models are resulted.