Optimization of Energy Efficiency of Electric Arc Furnace Steelmaking

To enhance the production efficiency of electric arc furnaces, conserve energy, and reduce consumption, a study was conducted to analyze the energy efficiencyEnergy efficiency of electric arc furnace steelmakingElectric arc furnace steelmaking. Through this analysis, an energy efficiencyEnergy efficiency evaluation technology for electric arc furnace steelmakingElectric arc furnace steelmaking was developed. The application of this technology enables the optimization of oxygen supply and power supply systems, leading to improved energy efficiencyEnergy efficiency, reduced power supply time, shortened smelting cyclesSmelting cycle, and achieving cost reduction and efficiency enhancement in smelting processes. An industrial application test was conducted in a steel mill, comparing the results with the original working conditions. The outcomes demonstrated significant improvements. Under normal production conditions, the average values for various parameters are as follows: power supply time reduced by 2.12 min, smelting cycleSmelting cycle shortened by 1.8 min, power consumption decreased by 37.3 kWh/t, power reduced by 0.4 MW, slag composition improved, metal recovery rate enhanced, and improvements in both energy efficiencyEnergy efficiency and chemical energy efficiencyEnergy efficiency were achieved.