Specific Features of Thermal Performance of the Arc Steel Furnace in Unstable Properties Conditions of Burden Materials

Abstract:

In the production of steel in a state-of-the art arc furnace, there are two serious issues, resulting from a decrease in bulk density of burden materials, and an increase in non-ferrous metals concentration. The paper presents the analysis results of changes in the chemical composition of iron-containing materials related with an increase in the content of non-ferrous metals: copper, tin, lead, antimony and unspecified metals in a given steel grade and a decrease in the bulk density of burden materials. A method of reducing impurities by means of using pellets produced from natural raw materials, that are pure in terms of impurities, is presented. A method of setting up charging of burden materials with different bulk density, using the filling coefficient of the furnace operating volume, is proposed. Combined burden materials that include various types of scrap and non-ferrous metals of iron-ore pellets, that are pure in terms of impurities, will ensure high-quality steel production.

• Periodical: Materials Science Forum (Volume 989)
• Pages: 486-491
• DOI: https://doi.org/10.4028/www.scientific.net/MSF.989.486
• Online since: May 2020
• Authors: German V. Voronov, Il'ya V. Glukhov*
• Keywords: Bulk Density, Burden Materials, Carbon, Filling Coefficient, Non-Ferrous Metals, Operating Volume, Steel

References

[1] A. G. Belkovsky, J. Kats, M. V. Krasnyansky, Current state and development trends of steel production technology in EAF (arc steel furnace) and their designs, Ferrous metallurgy Bulletin, 3 (2013) 72–78.

[2] Worldsteel Association Steel Statistical Yearbook 2001. Brussels: Worldsteel Committee on Economic Studies, (2001).

[3] Worldsteel Association Steel Statistical Yearbook 2011. Brussels: Worldsteel Committee on Economic Studies, (2011).

[4] P.I. Chernousov, Recycling. Technologies of processing and utilization of technogenic formations and wastes in ferrous metallurgy: Monograph. Moscow: MISiS. (2011).

[5] A.G. Chizhikov, A.E. Semin, I.I. Chizhikova, Automotive scrap in the structure of the metal fund of Russia and technical solutions for its disposal, Electrometallurgy. 4 (2010) 31-36.

[6] Steel and scrap metal, Secondary metals, 1 (2007)10-13.

[7] L.N. Shevelev, The current state and prospects of the development of the world steel market, Electrometallurgy, 6 (2010) 2-10.

[8] A.E. Semin, A.G. Chizhikov, Secondary metals and electric smelting of steel, Electrometallurgy, 6 (2007) 2-6.

[9] E.E. Merker, E.A. Chermenev, Electrowelding of metallized pellets in an arc furnace, Old Oskol: Thin high-tech technologies, (2015).

[10] E.E. Merker, A.V. Sazonov, A.A. Grishin, Features of the technology of electric smelting of pellets in an arc furnace, News of the Universities. Ferrous metallurgy, 2 (2008) 31-33.

[11] A.N. Makarov, A.Yu. Sokolov, A.S. Dyundin, Influence of energy-technological parameters on technical and economic indicators of the operation of EAF-150 furnaces when melting scrap and pellets. Part I. Working of electric furnaces with high efficiency of arcs during melting of scrap and pellets, Electrometallation, 2 (2010) 7-13.

DOI: 10.1134/s0036029510120049

[12] A.V. Sazonov, E.E. Merker, E.A. Chermenyov, Intensification of pellet melting when they are loaded into the zone of influence of an electric arc on the slag melt, Black Metallurgy Bulletin, 8 (2011) 62-64.

[13] Noro K., Takeuchi M., Mizukami Y. Necessity of Scrap Reclamation Technologies and Present Conditions of Technical Development, ISIJ International, 37(3) (1997) 198–206.

DOI: 10.2355/isijinternational.37.198

[14] E.F. Wegman. Blast-furnace production: Reference book. In 2 volumes. T. Preparation of ores and the blast furnace process, Edited by E. F. Wegman, Moscow: Metallurgy, (1989).

[15] I.V. Plesakin, G.V. Voronov, I.V. Glukhov, Recommendations on the charge of the burden and the location of fuel-burning devices in the arc steel-smelting furnace EAF-120, Heat Engineering and Computer Science in Education, Science and production: a collection of reports of the VI All-Russian Scientific and Practical Conference of Students, Postgraduates and Young Scientists (TIM'2017) with international participation (Yekaterinburg, May 11–12, 2017), Ekaterinburg: UrFU, (2017) 98-102.

[16] G.V. Voronov, V.A. Goltsev, I.V. Glukhov, Aerodynamics and thermal state of a modern electric arc furnace. Problems of ferrous metallurgy and materials science, (1) (2016) 28-34.

[17] Kopfle J., EAF metallics, 5th Steel Scrap Conference, November 9−10, 2011, Chicago.

[18] V.V. Pavlov, Yu.A. Ivin, S.V. Pekhterev, I.I. Matsko, O.S. Logunova, The influence of the fractional composition of scrap metal on the performance of an electric arc furnace, Electrometallurgy, 11 (2011) 2-6.

[19] S. V. Suprun, A.E. Semin, Influence of the composition and quality of scrap on the electrical parts index of electric smelting, Market of secondary metals, 2(40) (2007) 27-29.

[20] M. V. Shishimirov, O. M. Sosonkin, Resource Saving and Reserves for Improving the Efficiency of Steel Production in Chipboard, Vestnik Yu-UGU. Series: Metallurgy, 15(3) (2015) 70 -79.

[21] G.V. Voronov, V.A. Goltsev, I.V. Glukhov, I.V. Plesakin, On the issue of rational loading of burden materials and location of fuel-burning devices in EAF-120. Ferrous metallurgy, (1408) (2017) 45-49.