40 t超级电弧炉应用实践  

Application Practice of 40 t Super Electric Arc Furnace

作　　者：吴学涛 张豫川[1] 贺美乐 杨宁川 WU Xuetao;ZHANG Yuchuan;HE Meile;YANG Ningchuan(CISDI Engineering Co.Ltd.,Chongqing 401122,China;CISDI Research&Development Co.Ltd.,Chongqing 401122,China)

机构地区：[1]中冶赛迪工程技术股份有限公司,重庆401122 [2]中冶赛迪技术研究中心有限公司,重庆401122

出　　处：《工业加热》2024年第7期1-6,共6页Industrial Heating

基　　金：重庆市自然科学基金博士“直通车”项目(CSTB2023NSCQ-BSX0024);重庆市自然科学基金博士“直通车”项目(CSTB2023NSCQ-BSX0025)。

摘　　要：电弧炉炼钢具有流程短、绿色、节能等特点,是今后钢铁工业可循环、绿色化发展的重要路径。某公司通过多年的自主创新和技术沉淀,攻克了多电极分控调节、直流电源输出功率实时交互协同调控的瓶颈,开发了新型超高功率柔性IGBT直流电源和柔性直流高效供电技术,并结合电炉本体、针式底阳极等新技术,形成了新一代高效、低耗、绿色环保的超级电弧炉技术和装备。本文介绍了超级电弧炉本体装备、柔性直流电源和风冷底电极的技术特点,以及在某厂40 t电弧炉的改造应用情况。工业生产实践表明,超级电弧炉可有效缩短冶炼周期7 min,减少通电时间5 min,降低冶炼电耗13 kW·h/t钢锭,减少电极消耗1.8 kg/t钢锭,提高金属收得率2.34%,生产成本明显降低,产品质量也得到提高。Electric arc furnace steelmaking has the characteristics of short process,green,and energy-saving,and is an important path for the recyclable and green development of the steel industry in the future.Through years of self innovation and technological precipitation,CISDI has overcome the bottleneck of multi electrode split control regulation and real-time interactive and collaborative regulation of DC power output power.It has developed a new type of ultra-high powerflexible IGBT DC power supply and flexible DC high-fficiency power supply technology,and combined with new technologies such as electric furnace body and needle botom anode to form a new generation of efficient,low consumption,green and environmentally friendly super arc furnace technology and equipment.It introduces the technical characteristics of the super electric arc furnace equipment,flexible DC power supply,and air-cooled bottom electrode,as well as the transformation and application of a 40t electric arc furnace in a certain factory.Industrial production practice has shown that the super electric arc furnace can effectively shorten the smelting cycle by 7 minutes,reduce the electrification time by 5 minutes,reduce the smelting power consumption by 13 kW.h/t of steel ingots,reduce electrode consumption by 1.8 kg/t of steel ingots,improve metal yield by 2.34%,significantly reduce production costs,and improve product quality.

关 键 词：直流电弧炉 IGBT柔性直流电源 针状风冷底电极 工业应用 

分 类 号：TF806.6[冶金工程—有色金属冶金]