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1、STEELSDN.BHD《IMP1#BlastFurnaceStoppageProposal》Preparedby:YuYuFeVerifiedby:ZheRu,CheWeFenApprovedby:WanSheHuIMP7/10/201581.OrganizationCommander:ZhDeputyCommander:ChenW,WooWingNan,andWangTanMember:ChiaKayKiat,YuFeng,WuShi,ZhaTie,LiGuMi,LiuQingJiang,YangYuFe,SuWe,WanJ
2、uWe,GuoWeZho,LiuHaiQingGaoXDo,WanZh,ReXiaM,WaHaCu,GuYoGa,CaMiZe,YanSuLi,ToZhiGa.2.Theshutdowntime:17October2015(Estimated)3.Theshutdownmethod:loweringchargelevel,orloweringstockline4.ShutdownRequirements1.Ensurethepersonnelsafety,equipment,Cogas,operationofshutdownpr
3、ocesstorealizesafeandsmoothshutdown;2.Controlofwaterandairflow,controlthefurnacetemperature,tappingcleanloweringstocklinetilltuyereheightarea,toshortentheprocessperiod.5.Preparationsfortheshutdown1.Ensureastablematerial,arrangeshortpositionsforeachsilo,fullyemptymate
4、rialandcokebunkerbeforeblowoff.(Responsibleperson:YuanYuFeng,LiGuangMing,WangHaiCun)2.Twodaysbeforetheshutdown,stopusinglumpore,makesure2flowofCogasisproperdistributetheedges,usefluoritecleaningBFwalls,reducingcokeburdenandthetemperaturecontrol0.6-0.8%,Basicityofslag
5、controlR2=1.00±0.05Buthearthtemperaturestabilitymustbeguaranteed.(Responsibleperson:LiGuangMing)3.2Daysbeforeshutdown,increasethetapholeangle(13°),andletthetappingflowwithsuitablerate.(ResponsibilitypeopleZh,Li,Liu)4.EnhanceBFcoolingsystemcheckupbeforetheshutdown,esp
6、eciallythetuyere,andslagarea.Promptlyreplacediffindingleaking,suchascoolingwallleakingshouldbeshutdownimmediately,strengtheningtheexternalwater.8(Responsibleperson:Rn)1.BFTopwatersprayshoseandsprayswatermethods,install4spraytube.Pipesaccordingtorequirement,withdiamet
7、ers32mmpipe,long4000mm,closetothewall1000mm-stinging,withtheremainderopendiameter3mmeye,3rows(60°),Interval60mm,furnaceend-smashingtipsweldedshut,andtestingahead.(Responsibleperson:Zhain)2.Pre-readyBFtopwaterdevices,controlwatervalvesinstalledontheairplatformregion,f
8、our-waypipedoublevalvecontrol,allwaterpressurewaterpressurenotlessthan0.90MPa,thereisenoughwater,installapressuregaugeoneachofthefo
