电炉炼钢课件.ppt

EAFsteelmaking目录古代炼钢法西汉后期，生铁冶炼已达到较高水平，能够为炼钢提供充足的生铁原料，发展了炒钢技术。文献指出，我国的炒钢技术始于西汉中期（公元前二世纪）。
炒钢是世界上最早用熔化生铁氧化熔炼的炼钢方法。
炒钢就是把生铁加入炉膛中，燃烧木炭以提高炉温来使生铁升温．借助空气中的氧和加入铁矿石的氧并通过人工搅拌，使生铁中的碳氧化，得到碳含量较低、可锻的钢或熟铁。56热力学热力学微观动力学宏观动力学交叉学科学科发展现代炼钢流程Overviewofsteelmakingprocessesandtheirdevelopment——R.J.FruehanCurrentlymostallofthehotmetalproducedintheworldisrefinedinanoxygensteelmakingprocess(OSM).
Asmallamountofhotmetalisrefinedinopenhearths,castintopigforuseinanEAForrefinedinotherprocesses.ThemajorelementremovedinOSMiscarbonwhichisremovedbyoxidationtocarbonmonoxide(CO).
Otherelementsuchassilicon,phosphorous,sulfurandmanganesearetransferredtoaslagphase.
IntheEAFsteelmakingprocessthechemicalreactionsaresimilarbutgenerallylessextensive.OxygenSteelmakingProcessesOxygenSteelmakingProcessesOxygenSteelmakingProcessesOxygenSteelmakingProcessesOxygenSteelmakingProcessesOxygenSteelmakingProcessesOxygenSteelmakingProcessesOxygenSteelmakingProcessesOxygenSteelmakingProcessesOxygenSteelmakingProcessesOxygenSteelmakingProcesses电弧炉炼钢发展概况电弧炉炼钢发展概况电弧炉炼钢发展概况电弧炉炼钢发展概况电弧炉炼钢发展概况电弧炉炼钢发展概况电弧炉炼钢发展概况电弧炉炼钢发展概况电弧炉炼钢发展概况电弧炉炼钢发展概况电弧炉炼钢发展概况电弧炉炼钢发展概况电弧炉炼钢发展概况电弧炉炼钢发展概况电弧炉炼钢发展概况电弧炉炼钢发展概况TableofcontentsFurnacedesignTableofcontentsFurnaceElectricSystemandPowerGenerationGraphiteElectrodesTableofcontentsOperationsTableofcontentsNewScrapMeltingProcessesTableofcontentsGasCollectionandCleaningTableofcontentsElectricFurnaceTechnology考试说明教材及参考炼钢任务——工序功能的演变与分工Introduction——GuoIntroduction——GuoIntroduction——GuoIntroduction——GuoIntroduction——GuoIntroduction——GuoIntroduction——GuoIntroduction——GuoIntroduction——GuoIntroduction——GuoIntroduction——GuoIntroduction——GuoIntroduction——GuoIntroduction——GuoIntroductionJ.A.T.Jones,ConsultantB.Bowman,SeniorCorporateFellow,UCARCarbonCo.P.A.Lefrank,Director,ApplicationsTechnology,SGLCarbonCorp.IntroductionJ.A.T.Jones,ConsultantB.Bowman,SeniorCorporateFellow,UCARCarbonCo.P.A.Lefrank,Director,ApplicationsTechnology,SGLCarbonCorp.79IntroductionJ.A.T.Jones,ConsultantB.Bowman,SeniorCorporateFellow,UCARCar