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Thermal calculation of the water-cooled elements of the lining of an electric arc steel melting furnace

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Refractories Aims and scope

Conclusions

A model and a computer program using it have been developed making it possible to evaluate the influence of the electrical conditions after melt-down in an electric arc steel melting furnace on the thermal operation of tubular water cooled elements of the lining.

The calculation is made for steady and nonsteady thermal conditions and makes it possible to determine the following parameters of thermal operation of the element: the temperature distribution across the layer of lining slag and tube wall; the temperature losses with the water and the water temperature at the exit of the element; the equilibrium lining slag thickness for a specified arc radiant power and heat exchange conditions in the furnace space.

The heat losses with the water of a tubular wall panel of a DSP-100I6 furnace (tube diam. 76 mm and wall thickness 12 mm, lining slag thickness 20 mm, water consumption 5 m3/h per m2 of panel) after meltdown of the heat were calculated.

The equilibrium thickness of the lining slag decreases with a reduction in its melting point and in increase in arc radiant power Pa.rad.

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Literature cited

  1. I. I. Ignatov, “Mathematical simulation and calculation of arc and plasma steel melting furnaces,” in: A Collection of Scientific Works of the All-Union Scientific-Research Institute for Electric Heating Equipment [in Russian], Énergoatomizdat, Moscow (1983), pp. 3–14.

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  2. L. E. Nikol'skii, V. D. Smolyarenko, and L. N. Kuznetsov, Thermal Operation of Electric Arc Steel Melting Furnaces [in Russian], Metallurgiya, Moscow (1981).

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  4. I. M. Rafalovich, The Temperature Drop in the Molten Metals, Solutions, and Lining of Furnaces and Apparatus [in Russian], Énergiya, Moscow (1977).

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Authors and Affiliations

  1. All-Union Scientific-Research Institute for Electric Heating Equipment, USSR

    V. D. Smolyarenko & A. V. Khainson

Authors
  1. V. D. Smolyarenko
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  2. A. V. Khainson
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Translated from Ogneupory, No. 6, pp. 40–43, June, 1988.

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Smolyarenko, V.D., Khainson, A.V. Thermal calculation of the water-cooled elements of the lining of an electric arc steel melting furnace. Refractories 29, 376–381 (1988). https://doi.org/10.1007/BF01293384

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  • DOI: https://doi.org/10.1007/BF01293384

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