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Effect of the Mass of the Liquid Residue on the Performance Characteristics of an Eaf

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Results are presented from a theoretical study of the effect of the liquid residue in electric-arc steelmaking furnaces (EAFs) on unit electric-power consumption and the duration of the heat. Quantitative estimates are made of the heat flux which exists during the heating and melting of continuously charged small batches of scrap. In this case, the scrap is heated and melted as a result of forced convection in the liquid residue. The heat flux is also quantitatively estimated for the case when the entire scrap charge is introduced into the furnace at once and the scrap is heated and melted by radiation from the arcs in the furnace’s working space. A hypothesis is proposed to explain the existence of an optimum weight for the liquid residue in EAFs charged by different methods.

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Correspondence to A. G. Belkovskii or Ya. L. Kats.

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Translated from Metallurg, No. 11, pp. 34–40, November, 2014. Original article submitted July 31, 2014.

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Belkovskii, A.G., Kats, Y.L. Effect of the Mass of the Liquid Residue on the Performance Characteristics of an Eaf. Metallurgist 58, 950–958 (2015). https://doi.org/10.1007/s11015-015-0023-7

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