鱼雷罐铁水温降分析

37420024IRONANDSTEELVol.37,No.4April2002()(),,,aANALYSISOFHOTMETALTEMPERATUREDROPINTORPEDOCARWUMaolinZHANGYonghongYANGShengfa(UniversityofScienceandTechnologyBeijing)XIANGShunhuaLIUTieshuSUNGuowei(BaoshanIronandSteelCo.Ltd.)ABSTRACTAmathematicalmodelhasbeendevelopedtosimulatetemperaturedropofhotmetalintorpedocarduringtransportation.ThecalculatedvaluescloselyagreedwiththemeasuredvaluesatBaoshanIronandSteelCo.,Ltd..Usingthemodeltheinfluenceofvariousfactorsonthehotmetaltemperaturedropareestimatedandthemethodstoreduceheatlossofhotmetalintorpedocararediscussed.KEYWORDStorpedocar,hotmetaltemperaturedrop,numericalsimulation1,,,,,,,[14]320t,,,,,,,2(1),,,,,cpQ9t9S=1r99rrK(t)9t9r+1r299K(t)9t9(1)tS,;K(t),Jö(sm);cp,Jö(kg);a:,,(100083)Q,kgöm3;r,m,rad,1ö4,(2)cFeMFeStap[SdtFedS-(torig-tFe)]=-Qtap(S)(2)cFe,Jö(kg);MFe,kg;Stap,s;S,s;torig,;tFeS,;Qtap(S),Jös(3)cFeMFedtFedS=-[qhole(S)Shole+qout(S)Sout+Qacum(S)](3)qhole,qout,Jö(m2s);Qacum,Jös;Shole,Sout,m2(4)cFeMFedtFedS=-[qhole(S,hslag)Shole+qout(S)Sout+Qacum(S)](4)hslag(),(5)cFeMFedtFedS=-Qychl(5)(5),Qychl=qout(S)Sout+Qacum(S)+QDeSQychl=qout(S)Sout+Qacum(S)+QDeS+QDePQychl,Jös;QDeS,Jös;QDeP,Jös,11Fig11Variationofaveragetemperatureofhotmetalwithtime,23,33,:1020,15,4515%;10,18,5415%,3,()282Fig12Effectoftheweightofhotmetalonhotmetaltemperaturedrop2,,314:,10t,3194,,,,3,,3Fig13Effectofthemouthliddingduringemptyonhotmetaltemperaturedrop,,,,,,,44Fig14Effectoftimesthecarreceivedhotmetalonhotmetaltemperaturedrop4,,,100,01616,,5,,5Fig15Effectofthicknessofadiabaticlayeronhotmetaltemperaturedrop5,3mm,51666;12mm,16145,6Fig16Effectofemptytimeonhotmetaltemperaturedrop66,,1h,71301,,,,,7,7,1h,15,,441377Fig17Effectofholdingtimeonhotmetaltemperaturedrop,,250260t,280290t,2123ö216ö,,,,,,;;216ö3ö,8h,,12mm,,30,,,5(1),(2),;;,,1StevenGJansto.HotMetalandRefractoriesTemperatureStudyofTorpedoCarsatInterlakeINC.IronmakingConferenceProceedings,1980,39,4348.2KaufmanDJ,ShockleyLW1TorpedoCarRefractoriesandSchedulingImprovementsatACMESteel.SteelmakingConferenceProceedings,1994,77,571575.311,1988,(9):16221411,1993,(8):12161(73)4070mm,,,,,,,,,,,,,,4,CSP,,,,,,,,,,514: