Electromagnetism and the Arc Efficiency of Electric Arc Steel Melting Furnaces

A. N. Makarov, V. V. Rybakova, M. K. Galicheva

Tver State Technical University, Tver, Russia.

DOI: 10.4236/jemaa.2014.67018                

Abstract

Results of analytically studied effect of electromagnetic blowing and the slag height on the arc efficiency are stated. An arc is blown from under an electrode toward the furnace walls under an electromagnetic force, arc radiation on the wall and roof increase and effective output, absorbed by the metal decreases. EAF (electric arc steel melting furnace) with independently powered arcs, eliminating its electromagnetic blowing is proposed. When arcs are powered independently, its efficiency increases significantly, and specific energy consumption decreases.

Keywords

Electromagnetic Forces, Arc, Heat Exchange, Electric Furnace

Conflicts of Interest

The authors declare no conflicts of interest.

References

[1]	Nikol’skii, L.E., Smolyarenko, V.D. and Kuznetsov, L.N. (1981) Thermal Operation of Electric Arc Furnaces. Metallurgiya, Moscow.
[2]	Makarov, A.N. and Sokolov, A.Yu. (2008) Effect of Inductive Reactance on the Technical and Economic Indices of Arc Steel Melting Furnaces. No. 11, Electrichestvo, Moscow, 65-68.
[3]	Makarov, A.N. and Sokolov, A.Yu. (2009) Electric, Eometric, and Thermal Parameters of the Arcs Glowing in Metal-Vapors. No. 11, Elektrometallurgiya, Moscow, 19-24.
[4]	Finkelnburg, W. and Maecker, H. (1956) Elektrische Bogen und Thermisches Plasma. Handbuch der Physik, 254-444.
[5]	Makarov, A.N. and Svenchanskii, A.D. (1992) Optimum Thermal Conditions of Electric Arc Furnaces. Enegoatomisdat, Moscow.
[6]	Makarov, A.N. (2003) Heat Exchange in Electric Arc and Flame Furnaces and Boiler Fire-Boxes. TGTU, Tver.
[7]	Makarov, A.N. (2012) Regularity between Radiation Parameters of Isothermal Coaxial Cylinder Gas Layers Formed during Fuel Flare and Arc Glow in Metallic Vapors at Atmospheric Pressure. Collection of Scientific Papers, Ideas, Hypotheses, RANS Publishing, Moscow, 33-37.
[8]	Makarov, A.N. (2012) Regularities, Accompying Glowing of Electric Arc and Torch in Metallurgy Furnaces. Geometric Physical and Analytical Model of an Arc and a Torch. No. 7, Elektrometallurgiya, Moscow, 22-32.
[9]	Makarov, A.N. (2012) Regularities Accompying Glowing of Electric Arc and Torch in Metallurgy Furnaces. The Use of Scientific Discovery for Energy and Fuel Saving in Metallurgy Furnaces. No. 8, Elektrometallurgiya, Moscow, 28-35.
[10]	Sisoyan, G.A. (1971) Electric Arc in Electric Furnace. Metallurgiya, Moscow.
[11]	Spelitsyn, R.I. (1975) Penetration of an Electric Arc into the Liquid Bath in a High Power Electric Arc Furnace. No. 12, Elektrotermiya, Moscow, 10-11.
[12]	Pashkis, V. (1945) Industrial Electric Furnaces and Appliance. New York.
[13]	Kuznetsov, M.S., Yakushev, E.V., Kulagin, S.A., Kotelnikov, G.I., Semin, A.E., Kosyrev, K.L. and Kulish, R.S. (2010) Effect of Metal Charge and Slag Depth on Steelmaking Practice in Arc Furnace. No. 2, Elektrometallurgiya, Moscow, 2-6.
[14]	Makarov, A.N., Sharova, Yu.A. and Galkin, V.Yu. (2008) A Three-Phase in Arc Steel-Melting Furnace. RF Patent 2333438.
[15]	Makarov, A.N. and Sokolov, A.Yu. (2009) Method of Steel-Melting in a Three-Phase EAF. RF Patent 2368670.