A. A. Nikolaev, P. G. Tulupov, V. S. Ivekeev, S. S. Ryzhevol
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Abstract—The electrical and technological operating conditions of a DSP-120 modular electric arc furnace are analyzed. The problems associated with suboptimal furnace operation at a low power factor, lack of automation in gas-oxygen equipment, and the absence of an informative parameter characterizing the efficiency of shielding arcs by a foamed slag have been described. As a solution to these problems, we propose an improved technique for setting the electrotechnological conditions of the modular electric arc furnace, which is used to develop new optimized heat profiles. Recommendations for optimizing the injection of a carbon-containing material into the furnace using a slag coefficient calculated using the harmonic composition of the arc currents are developed. The implementation of these measures in the operating production is found to cause a technical effect in the form of reduced specific energy consumption, which is crucial for a modular electric arc furnace as an energy-intensive technological unit.
期刊介绍：
Russian Metallurgy (Metally) publishes results of original experimental and theoretical research in the form of reviews and regular articles devoted to topical problems of metallurgy, physical metallurgy, and treatment of ferrous, nonferrous, rare, and other metals and alloys, intermetallic compounds, and metallic composite materials. The journal focuses on physicochemical properties of metallurgical materials (ores, slags, matters, and melts of metals and alloys); physicochemical processes (thermodynamics and kinetics of pyrometallurgical, hydrometallurgical, electrochemical, and other processes); theoretical metallurgy; metal forming; thermoplastic and thermochemical treatment; computation and experimental determination of phase diagrams and thermokinetic diagrams; mechanisms and kinetics of phase transitions in metallic materials; relations between the chemical composition, phase and structural states of materials and their physicochemical and service properties; interaction between metallic materials and external media; and effects of radiation on these materials.
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