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19995METALLURGICALINFORMATIONREVIEW,KongDebiaoMaanshanIron&SteelDesignandResearchInstituteEAFsteelmakingtechnologyinfastdevelopmentAbstractThedevelopmentofEAFsteelmakinganditsnewtechnology,newprocessareintroduced.TheonlywayoftransformationofoldsteelmakingfacilitiesincludingthetraditionalsmallEAF,smallconverterandopenhearthistoadoptthehighlevelmodernEAF.KeywordsEAF;steelmaking;DC;converter1,,,416%,200034000t/a,(19943118%),201050%,,80,,1020,,,;,(),,,,,;,,,,,,2,80,,,8010,130,0219995METALLURGICALINFORMATIONREVIEW,,,;,211:(1),:43%,4415%,715%,5%:85%,10%,5%,,,,,,,50%,111210kg/t(2),;;,;,,,,,5%10%(3),,,80,8001000kVA/t,,,55%,,,,:(1),,,1/3(2),,100t,550mm,700800mm700mm,,,,700mm600mm20%212,,,,,,,,,,,3,,,(),1219995METALLURGICALINFORMATIONREVIEW:;;,10,3111992,,,(60%),,,,,,,,,,100%,,,,,,,,,312ConsteelConsteel(InterSteel),1989,,550600,,,,,Consteel,,Corex30%40%19897Consteel,6Consteel2000,11ConsteelMVAMW,%,t302410030,1989.1255468515100,1992.105042100100,1993.9504010075,1994.5120958020DRI180,1997.12311001998.82210060,2000.13.3,IHI(),ABB,:()260t,140t,60min800,200711mm,518m,2,,,,,,CO:260kWh/t(25kg/t;33Nm3/t)(1520dB))(50%60%)2219995METALLURGICALINFORMATIONREVIEW53.4Contiarc()ContiarcContiarc1998,,Contiarc:,,,,,,,,,,,100%,,Contiarc260kWh/t3.5ComeltComelt,,,:,60%80%,4,,,4,,,,,,3/CO,,335kWh/t(30Nm3/t6.7Nm3/t);45min;1kg/t(400mm)3.6DanarcDanarc,,DannarcDanarcPlusDanarcPlusM2,,Danarc,,DanarcPlus,Danarc,,(),DanarcPlusM2DanarcPlusM2(),,,,/,,3.7,203219995METALLURGICALINFORMATIONREVIEW,(),3,,,6-10min,,,,,,ABB()19974,,0.6t/m3(),,,1/3,1/3,4,,,,,,,3.8,,,ABB,ArconConarc,,;,Conarc(85%),300m3/min,177244kWh/t,ABBArcon,,,Arcon,,,:225kWh/t,45m3/t,0.7kg/t,3.9(FAF),100tFAF,:,,,650-750,,(28)4219995METALLURGICALINFORMATIONREVIEW2.1,:X2.2,,,,,:(12),240,,1,,,2,,,3,4,,3:(1),,,45,,3,,(2),,(3),,,,(4),,,(5),,,,(6),:;(24)25-30MW,,,CO,,,700,,,1200,,1530(),,FAF,23%,77%,2.53.0()82