“八五”国家重点节能示范项日、国内第一台10t 单电极直流炼钢电炉自今年6月2日在南京第三钢铁厂试转成功,至今已断断续续炼出钢水18炉。目前,已取得部分项目数据,其中仅电极消耗一项即下降了50%以上,节能效果显著。电极是电炉炼钢中的高耗能产品,每生产1t 石墨电极需耗电近10000kWh。而每炼1t电炉钢需消耗电极7kg 左右。使用单电极直流电炉炼钢,每生产1t 钢仅消耗电极3kg 以下, The “Eighth Five-Year” national key energy-saving demonstration project Day, the country’s first 10t single-electrode DC steel electric furnace since June 2 this year, Nanjing Iron and Steel Plant in the third successful test turn, so far has intermittently refined 18 furnaces. At present, some project data have been obtained, of which the consumption of only one electrode is reduced by more than 50%, and the energy-saving effect is remarkable. The electrode is a high-energy-consuming product in electric furnace steelmaking, which consumes nearly 10000kWh for every 1t graphite electrode. Each refining 1t EAF need to consume about 7kg electrode. The use of single-electrode DC electric steelmaking, producing 1t steel only consumes less than 3kg electrode,