Study on Energy Optimizing in Electric Arc Furnace Steelmaking Process

In order to balance between the power supply and the theoretical demand value in electric arc furnace steelmaking process,the optimal energy model was established.Based on the policy making order that was first oxygen,second electricity,it could achieve energy optimal distribution about oxygen and power supply.The industry experiment had been made in the 150 t EAF steelmaking process in Tianjin Pipe Group.The results were compared and analyzed with original operating condition and simulation,and good production efficiency had been made.The tapping to tapping time was 49.5 min,the tapping quantity 141.2 t,the smelting electricity consumption 314.3 kW·h/t and the oxygen consumption 41.0 m3/t on average.The oxygen utilization rate reached 87.7% and the recovery of metal 88.5%.