AOD炉加料及温度制度的研究与实践

AOD(,200431)AOD,AOD,AOD,120tAOD,AOD:,,,RESEARCHANDPRACTICEONMATERIALADDITIONANDTEMPERATURECONTROLOFAODJiangQingyuanLiDonggangChiHebing(StainlessSteelBranch,Baosteel)AbstractAccordingtotheresearchonthethermodynamiclawofthechromiumoxidationintheAODprocess,theprincipleforthematerialadditionandtemperaturecontroloftheAODwasset,thewaywasascertainedtocalculatethemixingmountofmaterial,thestarttimeofmaterialadding,theaddingspeed,andtheadditionsequence.Agoodresultwasobtainedbyusingthismethodintheactualsteelmakingprocessofa120tAOD.KeyWordsAODFurnace,MaterialAddingMethod,TemperatureControlMethod1()120tAOD,,AOD:(1)(),,;(2),,(016%[1,2]),,(016%[1,2]),,120tAOD,,,AOD,AOD,120tAOD,2211AOD,,,AOD,3%1AOD1AOD294Vol129,No143520077SHANGHAIMETALSJuly,2007©1994-2007ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.(1)[3]:3[C]+(Cr2O3)s=2[Cr]+3COlnK=-8921515T+57102(1),K=lna2[Cr](PCO/P)3a3[C]aCr2O3(1),K;T,K;ai;PCOCO,Pa(1),120tAOD,([4],1),18%1600,23,(y)(x),(2)(5):y=014952x+134116(x110%)(2)y=119024x+138015(012%x110%)(3)y=716792x+148113(011%x012%)(4)y=191764x+145318(x011%)(5)218%31600(y)(x),(6)(9):y=-010015x+016274(x110%)(6)y=-010030x+014081(012%x110%)(7)y=-010078x+012246(011%x012%)(8)y=-010202x+012484(x011%)(9)32(2)(5),,,,3(6)(9),,,,:,,AOD,AOD,AOD:(1)AOD;(2)AOD;(3);(4)AOD(3%),AOD:16601680,16401680,,44AOD(5)AOD:,;6329©1994-2007ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.:(1);(2)16601680;(3)(10)(12):WaAa-WsAsAmat=Wa-Ws(10):WmatT-mat=tT+C+WSi,matT+Si(11):WC=FOidiCREi0193(12)(13):Oadd,sFo1T+C+WSi,sT+Si=Ta-Ts(13)(14):Smataddt=Wa-Ws(14)(10)(14),Wa,kg;Aa,%;Ws,kg;As,%;Amat,%;Wmat,Wa-Ws,t;T-mat,/kg;t,min;T+C,/100Nm3O2;WSi,Mat,kg;T+Si,/kg;WC,kg;FOii,Nm3/min;dii,min;CREii,;Oadd,s,Nm3;WSi,s,kg;Ta,;Ts,;Smatadd,kgPmin(10)(14)AOD,AOD(5),AOD,,AOD5120tAOD,304,5110135%0144%,0139%,0140%,;16551689,1678,1680,,0160%0140%,,,,016%,512,-0191%-0150%,-0169%,,,2(6),,5131122%1148%,1136%,9151015kgPt,,,,AOD,(FeO),,,AOD6AOD,(44)734:AOD©1994-2007ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.[1],.[M].:,1994:340.[2],.[J].,2004,26(1):42.:2007203214(37),,AOD,(1)AOD;(2)AOD,,;(3),AOD[1]G.Breuer,G.Tromel,andH.j.Engell:Arch.Eisenhiittenwes.,1968,39:553557.[2]H.NomuraandK.Mori,Trans.IronSteelInst.Jpn.,1973,13:325332.[3].[M].:,2001.[4]E.T.Turkdogan.PhysicochemicalPropertiesofMoltenSlagsandGlasses,MetalsSociety,London,1983,422.:2006210224(40),,[1]TakiN,YamadaY,AmanoM,NakamuraH,GotoK,TakeuchiK.ImprovementofrefractoriesforsnorkelinCAS2OB[C].Unitecr2003Congress.ECORefractoryfortheEarth.Proc.8thBiennialWorldwideConf.onRefractories;2003.[2],,,.[J].,2002,36(1):2426.[3].CAS[J]..1998,(4):5759.:20072022084429©1994-2007ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.