Analysis of the Actual Efficiency of Electric Arc Furnaces
DOI:
https://doi.org/10.14529/power170404Keywords:
arc steelmaking furnace, energy efficiency, distribution of energy resources, coefficient of efficiency, harmon-ic composition of currents, automatic control system, diagnostics of melting stagesAbstract
The article considers possible options for increasing the efficiency of an arc steel-making furnace due to redistribution of the volumes of energy resources used. The comparative analysis of technological parameters for melting various steel grades is carried out. The technique for determining the actual value of the efficiency of a 180-ton arc furnace is considered. The ways to increase the value of the internal efficiency of an arc furnace are proposed by means of the introduction of automatic regulation systems for the volumes of energy resources supplied. The option for regulating the volumes of energy carriers supplied is considered on the basis of analysis of the values of the higher harmonic current components.
References
Zinurov I.Yu. [Analysis of the State of Construction, Basic Parameters and Performance Indicators
for Heavy-Load EAFs Operating at Russian Metallurgical Plants]. Electrometallurgy, 2013, no. 3, pp. 2–6.
(in Russ.)
Lisienko V.G. Hrestomatija po Jenergosberezheniju. Spravochnoe Izdanie. V 2-h Knigah [Reader on Energy Conservation. Reference Edition. In 2 books]. Moscow, Heat power engineer, 2002. 688 p.
Agapitov E.B., Kornilov G.P., Khramshin T.R. [Control of the Thermal and Electrical Conditions of
the Ladle-furnace Unit]. Electrometallurgy, 2006, no. 6, pp. 11–16. (in Russ.)
Gudim Yu.A., Zinurov I.Yu., Kiselev A.D., et al. [Rational Methods of Melting Intensification in Modern Arc Steel Smelting Furnaces]. Bulletin of South Ural State University. Ser. Metallurgy, 2008. no. 9, pp. 10–13.
(in Russ.)
Shishimirov M.V. [Resource Saving and Reserves to Increase the Efficiency of Steelmaking in EAF]. Bulletin of South Ural State University. Ser. Metallurgy, 2015, no. 3, pp. 70–79. (in Russ.)
Mellentin I. [Saving Electricity Costs and Achieving Transparency Instead of Reducing Profit]. Black me¬tals, 2014, June, pp. 73–77. (in Russ.)
Kornilov G.P., Nikolaev A.A., Khramshin T.R [Analysis and Optimization of Electric Modes of Super-power Arc Steel Smelting Furnaces]. Electrometallurgy, 2013, no. 7, pp. 2–10. (in Russ.)
Timoshpol'skiy V.I., Trusova I.A., Korneev S.V. [Efficiency of Using Gaseous Fuels in Electric Arc Furnaces]. Casting and Metallurgy, 2009, no. 3, pp. 305–310. (in Russ.)
Korneev S.V., Trusova I.A [Interrelation of the Energy Mode of Melting with Technological Parame-ters for the Conditions of Electric Arc Furnaces of Various Capacities]. Casting and metallurgy, 2012, no. 3,
pp. 209–217. (in Russ.)
Tuluevskiy E.N., Zinurov I.Yu. Innovatsii dlya dugovykh staleplavil'nykh pechey. Nauchnye osnovy
vybora [Innovations for Arc Steel Furnaces. The Scientific Basis of Choice]. Novosibirsk, NGTU Publ., 2010. 347 p.
Nikolaev A.A., Russo Zh.-Zh., Stsymanski V., et al. [Experimental Study of the Harmonic Composi-tion of Arc Currents for Arc Steel Furnaces of Various Capacities]. Vestnik of Nosov Magnitogorsk State Technical University, 2016, no. 5, pp. 106–120. (in Russ.) DOI: 10.18503/1995-2732-2016-14-3-106-120
Kornilov G.P., Shulepov P.A. [Reduction of Costs in the Operation of Super-Power Arc Steel Furnac-es]. Chief Power Engineer, 2015. no. 5–6, pp. 24–28. (in Russ.)
