石横特钢65tConsteel电弧炉铁水热装的节能实践

65tConsteel(,271612)65tConsteel()30%,1300,,95kWhPt,218m3Pt,715minConsteelPracticeforEnergySavingofa65tConsteelElectricArcFurnacebyHotMetalChargingatShihengSpecialSteelLiHongyong,ChaiJianmingandYaoNa(ShihengSpecialSteelWorks,JinanIronandSteelGroup,Feicheng271612)AbstractWithusing30%hotmetalchargingwhilethetemperatureofmetalbeingnolessthan1300,andopti2mizingpowersupplyscheduleandfoamslagprocess,thesteelmakingpowerconsumptionofa65telectricarcfurnaceatShihengSpecialSteeldecreasedby95kWhPt,theOxygenconsumptiondecreasedby218m3Ptandthetaptotaptimere2ducedby715min.MaterialIndexConsteelElectricArcFurnace,Steelmaking,HotMetalCharging65tConsteel(),20009,2002122,,11ConsteelEBT(),Consteel(Consteel9,7,5),,,,,1ConsteelConsteel()1,,Consteel30%40%Consteel,,,1ConsteelTable1MainparametersofsteelmakingprocessofConsteelelectricarcfurnacePMVAPmmPtPtPmmPkWht-1Pkgt-1Pmin36560097655502801.853EBT,,C2O,,Consteel,,,,Consteel380m360tConsteel85262Vol.26.No.220053SPECIALSTEELMarch2005,25t(1300)22ConsteelP%Table2ChemicalcompositionofhotmetalforsteelmakingofConsteelelectricfurnaceP%CSiMnPS4.04.30.30.50.20.30.0800.040,,Consteel,,,,016115tPmin,115tPminC2O3500m3Ph,4000m3Ph,22.11,30%,,,1ConsteelFig.1EffectofhotmetalratioonelectricconsumptionandtaptotaptimeofConsteelelectricarcfurnacesteelmaking,CO,,,,,,(1012),,,,2.2Consteel,,C2O,,,,118215,FeO12%20%,33ConsteelP%Table3AnalysisresultsofingredientofConsteelelectricarcfurnaceslagP%CaOSiO2FeOMgOP2O5MnOAl2O343.2621.7917.616.501.692.925.622.3,,4200220044,4Table4ComparisonofmaineconomicandtechnicalindexbetweenhotmetalchargingheatsandwithouthotmetalchargingheatsP%PtPkWht-1Pm3t-1Pmin20041629.3%4918727043.85320025103863936546.660.5-+10548-95-2.8-7.5:2002Consteel,,3,,Consteel30%,,,,29,,1998:2004212217952:65tConsteel