KnE Engineering

ISSN: 2518-6841

The latest conference proceedings on all fields of engineering.

Increasing Energy Efficiency of Electric Arc Foundry Furnaces

Published date: Jul 17 2018

Journal Title: KnE Engineering

Issue title: VII All-Russian Scientific and Practical Conference of Students, Graduate Students and Young Scientists (TIM'2018)

Pages: 35–49

DOI: 10.18502/keg.v3i5.2653

Authors:
Abstract:

A set of low-cost energy-efficient solutions for electric arc furnaces (EAF) of a foundry class is proposed: ‘deep’ bath, water-cooled panels with a spatial structure, a system of dispersed aspiration. Numerical simulations of thermal operation and gas-dynamics for 3-ton EAF in conditions of long downtime show the possibility of reducing  energy consumption by 6.5–9%, fugitive emissions by 2 times, melting dust removal from the
EAF by 19% and significant lowering of specific refractory and electrodes expenditure.


Keywords: electric arc furnace, heat exchange during downtime, energy efficiency, bath geometry, water-cooled elements with a spatial structure, a system of dispersed aspiration

References:

[1] Guo, D. and Irons, J. (10–12 December 2003). Modeling of radiation intensity in an EAF. Third International Conference of CRD in the Minerals and process industry, pp. 223–228. Melbourne, Australia: CSIRO.


[2] Gruber, J., Echterhof, T., and Pfeifer, H. (2016). Investigation on the influence of the arc region on heat and mass transport in an EAF freeboard using numerical modeling. Steel Research International, vol. 87, no.16, рр. 15–28.


[3] Gonsalez, O., Ramirez-Argaez, M., and Conejo, A. (2010). Effect of arc length on fluid flow and mixing phenomena in AC electric arc furnaces. ISIJ International, vol. 50, no. 1, pp. 1–8.


[4] Kawakami, M. and Takatani, R. (1999). Heat and mass transfer analysis of scrap melting in steel bath. Tetsu to Hagane, vol. 85, no. 9, pp. 658–665.


[5] Li, J. and Provatas, N. (2008). Kinetics of scrap melting in liquid steel: Multipiece scrap melting. Metallurgical and Material Transactions, vol. 39B, no. 4, pp. 268–279.


[6] Logar, V., Dovžan, D., and Škrjanc, I. (2012). Modeling and validation of an electric arc furnace. ISIJ International, vol. 52, no. 3, pp. 402–423.


[7] Opitz, F. and Treffinger, P. (2016). Physics-based modeling of electric operation, heat transfer, and scrap melting in an AC electric arc furnace. Metallurgical and Material Transactions, vol. 47, pp. 1489–1503.


[8] Stankevich, Yu. A., Timoshpol’skii, V. I., Pavlyukevich, N. V., et al. (2009). Mathematical modeling of the heating and melting of the metal charge in an electric arc furnace. Journal of Engineering Physics and Thermophysics, vol. 82, no. 2, pp. 221– 235.


[9] Mironov, Yu. M. and Petrov, V. G. (2010). Thermal losses and power efficiency of arc steelmaking furnaces. Metally (Russian Metallurgy), no. 12, pp. 1141–1144.


[10] Egorov, A. V. (1990). Raschet Moschnosti I Parametrov Elektropecej Chernoj Metallurgii [Calculation of Power and Parameters of Electric Furnaces of Ferrous Metallurgy], p. 280. Moscow: Metallurgija (in Russian).


[11] Doroshenko, A. V., Djad’kov, B. P., Timoshenko, S. N., et al. (2017). Kombinirovanniy vodookhlazhdayemyy svod dugovykh elektropechey maloy vmestimosti [Combined water-cooled roof of electric arc furnaces of small capacity]. Metallurgicheskaya i gornorudnaya promyshlennost’ [Metallurgical and mining industry], no. 5,
pp. 91–95 (in Russian).


[12] Biswas, S., Peaslee K., and Lekakh S. Melting Energy Efficiency in Steel Foundries/AFS Transactions 2012 © American Foundry Society, Schaumburg, IL USA, pp. 449–456. Retrieved from http://www.afsinc.org/files/12-040.pdf (assessed on 07 March 2018).


[13] Timoshenko, S. N., Filippi, A. A., Onischenko, S. P., et al. (2017). Energoeffectivnye reshenija pri modernizatsii dugovykh pecei postojannogo toka liteinogo klasssa [Energy efficient solutions for modernization of foundry class DC EAF]. Metall i lityo Ukrainy [Metal and Foundry of Ukraine], no. 8–10(291–293), pp. 48–55 (in Russian).


[14] Timoshenko, S. N. (2016). Computer modeling bath geometry to improve energy efficiency of electric arc furnace/ System Technologies. Regional interuniversity collection of scientific works. Dnipro, vol. 3, no. 104, pp. 33–39.


[15] Howell, J., Pinar Menguc, M., and Siegel, R. (2011). Thermal Radiation Heat Transfer (5th edition) p. 987. Boca Raton, London, New York: CRC press and Taylor & Francis Group.


[16] Mazumdar, D. and Guthrie, R. I. L. (1995). The physical and mathematical modeling of gas stirred ladle systems. ISIJ International, vol. 35, no. 1, pp. 1–20.


[17] Ghosh, A. (2000). Secondary Steelmaking: Principles and Applications, p. 344. CRC Press.


[18] Serikov, V. A., Bikeyev, R. A., Cherednichenko, M. V., et al. (2015). Ugar metalla i nagrev shikhty v rasplave v dugovykh elektropechakh [Burning of metal and heating of batch in a melt in arc furnaces]. Elektrometallurgiya [Electrometallurgy], no. 9, pp. 2–8 (in Russian).


[19] Timoshenko, S. N. and Gubinski, M. V. (2016). Povysheniye energoeffektivnosti elektrostaleplavil’nogo protsessa s nepreryvnym plavleniyem shikhty v zhidkoy vanne [Increase of energy efficiency of electric steelmaking process with continuous melting of charge in a liquid bath]. Technical ThemoPhysics and Industrial Heat Engineering. Collection of scientific works/Dnipro: Nova Ideologia, vol. 8, pp. 174– 183 (in Russian).


[20] Timoshenko, S. N., Tischenko, P. I., Timoshenko, N. S., et al. (2013). Modelirovaniye sistemy aspiratsii elektrodugovoy pechi s tsel’yu povysheniya energoeffektivnosti i ekologicheskoy bezopasnosti [Modeling of the electric arc furnace aspiration system to improve energy efficiency and environmental safety]. Ekologiya i
promyshlennost’ [Ecology and industry]. Kharkov: ‘UkrNTC’ Energostal„ vol. 2, no. 35), pp. 66–69 (in Russian).


[21] Guézennec, A., Huber, J., Patisson, F., et al. (2004). Dust formation by bubble-burst phenomenon at the surface of a liquid steel bath. ISIJ International, vol. 44, no. 8, pp. 1328–1333.


[22] Toulouevski, Yu. N. and Zinurov, I. Y. (2010). Innovation in Electric Arc Furnaces. Scientific Basis for Selection, p. 258. Berlin: Springer

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