wwwcnkinetSCR烟气脱硝技术在宝钢股份4烧结机的应用简

SinteringandPelletizing4362018122018－10－301982－。SCＲ4#2009414#SCＲ。NOx34mg/Nm3110mg/Nm3NOxNOx≤50mg/Nm3。、、SCＲ。SCＲX701B1000－8764201806－0024－05doi10．13403/j．sjqt．2018．06．081ApplicationofSCＲfluegasdenitrificationtechnologyinNo．4sintermachineofBaosteelCo．Ltd．ZhaoLimingChenHaiboBaoshanBaseIron-makingPlantofBaosteelCo．Ltd．Shanghai200941AbstractAftertheSelectiveCatalyticＲeductionSCＲfacilitiesusedforfluegasdenitrificationofNo．4sintermachineatBaoshanbaseofBaosteelCo．Ltd．wasputintooperationthroughdevelopmentandimprovementofproductiontechnologiesallpollutantemissionshavereachedthedesignrequirements．TheNOxemissionconcentrationhasreachedtheminimumvalueof34mg/Nm3andisfarbelowthedesignindexof110mg/Nm3anditmeetsthenationalrequirementsofultra-lowNOxemissionNOx≤50mg/Nm3forsinteringfluegas．ItisprovedthatthetechnologyhasstrongadaptabilitywithstableoperationandhighdenitrificationefficiencywhichprovidesasuccessfuldemonstrationfortheapplicationofSCＲdenitrificationtechnologyinco-processingofsinteringfluegas．KeywordssinteringfluegaspurificationSelectiveCatalyticＲeductionSCＲdenitrification14#600m220131113SO250mg/Nm320mg/Nm3NOxNO2。NOx200～550mg/Nm3NOxNOx＜300mg/Nm3。SCＲ、SNCＲ、、、、。SCＲ。NOx1。4220186SCＲ4#①1500～3000m340%②SO2NOxHF、HCI、③SO2NOxSO2NOx300～800ppm150～300ppm1500ppm300ppm④15%⑤10%65～80℃⑥120～80℃350～450℃2。201511SO2＜180mg/Nm3、NOx＜300mg/Nm3、＜40mg/Nm334#SCＲSCＲ。201610、NOxNOx≤50mg/Nm3。2SCＲ4#SCＲ160Nm3/h80%SO2≤50mg/Nm3、NOx≤110mg/Nm3、≤20mg/Nm3、≤0.5ngTEQ/m3。SCＲ、GGH、、、、、。2.1SCＲ。、、GGH1。114#SCＲ1SCＲ。4#SCＲ。SCＲGGH250℃280℃SCＲ。2。SCＲ。SCＲ、。524362.2GGHGGHGGH、GGH2。GGH250℃280℃SCＲGGH100℃GGH。GGHGGH。2GGH2.34#SCＲ。280℃250℃280℃100℃GGH280℃。1。。1。1/Nm3·h－1/℃/℃//kW·－1970000250280453702。。。PLC1。。。2.4NH3/NOx≤5%。。、。NOx。、5%NH3。NH36220186SCＲ4#NO14#250kg/h。2.5SCＲSCＲ、、。3。32.6、。3+13。4～8m/s80%。2。2/3/1/m2·m－3741/℃280min/max260/420/℃·min－1150/%≥85/Pa·－135024000h/Pa·－13502.7CFDSCＲCFDNH3/NOx、。CFD456。456724363SCＲSCＲ1。SCＲNOx。2。312213。3SCＲ。SCＲSCＲ－50～200PaSCＲ。4SCＲ4.14#SCＲ201610。20174#4。420174#(mg/Nm3)123456789101112SO231322712117588115614NOx79107105140149141143141103134131120124111011141616171614141415144。2018NOx50mg/m3。4#SCＲ4#NOx280～320mg/Nm3100～130kg/hNOx34mg/Nm3。4.24#SCＲ。5。4.34#SCＲ3+13。201610。5/t/m3/m3/t/kg1．24447．410．1260．0080．250．03329．960．3520．0030．115、。4#SCＲ。NOx34mg/Nm3110mg/Nm3NOxNOx≤50mg/Nm3。、、SCＲ。378220186SiO2MgOSiO2MgOSi4+Mg2+Mg2+②SFCAM-2SFCAM-1SFCAM③SFCAM-3SFCAM-1SFCAMSiO2MgOSiO2SiO2MgO1∶1SFCAM。41SiO2CFSiO2SFCA-ISFCA-I。2SFCAMSiO2SiO2MgO1∶1SiO2SFCAM1∶1SiO2SFCAMSFCAM。3SFCAM1050℃1250℃SFCAM。1．TiO2J．2015271121．2．SiO2MgOD．2015．3．MgO/Al2O3J．201843016－9+14．4．CaOSiO2J．2014390612－16．5KAZUMASASUGIYAMAAKIＲAMONKAWATAKEHIＲOSUGIYAMA．CrystalstructureoftheSFCAMphaseCa2CaFeMgAl6FeAlSi6O20J．ISIJInternational2005454560－568．6Li-HengHSIEHJ．A．WHITEMAN．Effectofrawmaterialcompositiononthemineralphaseinlime-fluxedironoresinterJ．ISIJInternational1993334467－470．7．N．2015－04－21B02．8．Al2O3SiO2J．200856－7．9ZhangFSheng-LiANLuoGPetal．EffectofBasicityandAlumina-SilicaＲatioonFormationofSilico-FerriteofCalciumandAluminumJ．JournalofIronandSteelＲesearchInternational201219041．10ZllKKahlenbergVKrügerHetal．InvestigationsonFCAM-IIICa2．38Mg2.09Fe10.613+Fe1.592+Al9.33O36anewhomologueoftheaenigmatitestructure-typeinthesystemCaO-MgO-Fe2O3－Al2O3J．JournalofSolidStateChemistry2017．11SugiyamaKMonkawaASugiyamaT．CrystalStructureoftheSFCAMPhaseCa2CaFeMgAl6FeAlSi6OJ．TransactionsoftheIron＆SteelInstituteofJapan2006454櫵櫵櫵櫵櫵櫵櫵櫵櫵櫵櫵櫵櫵櫵櫵櫵櫵櫵櫵櫵櫵櫵櫵櫵櫵櫵櫵櫵櫵櫵櫵櫵櫵櫵櫵櫵櫵櫵櫵櫵櫵櫵櫵櫵560－568．281．J．2014324459－464．2．CFBJ．201540653－58．3．SDAJ．2016215－19．73