Improvement of power input for steelmaking process in high impedance EAF

摘要

According to the electrical operation and steelmaking theory of EAF, an improved power input procedure of 70t high impedance EAF in Nanjinng Iron and Steel Corp. Ltd. was studied. The investigation method, process and result for use of power supply of high impedance EAF was proposed, and the optimized power-supply curve to EAF steelmaking practice was given, and electrical operation was improved, the electric energy consumption can be reduced by 25 kW·h/t, and power supply time can also be reduced 3 min.