Coilbox热卷箱

TheCoilboxTechnology热卷箱工艺WhatisaCoilbox?什么是热卷箱？Adevicetocoilanduncoilatransferbarinfrontofthefinishingstandsofahotstripmill.精轧机前对中间坯卷曲和开卷的装置。Coilformationisdonewithoutamandrel.可无芯卷曲Thecoilingoperationreversesthebarendtoendandturnsitoverforfeedtothefinishers.转换中间坯首尾后进精轧机Coilingnormallybeginswhilethebarisstillintheroughingmill(s).可边粗轧边卷曲Coilinganduncoilingcanoccursimultaneously开和卷可同时进行CoilboxinaConventionalHotStripMill热卷箱在传统热轧机中的应用Coilbox热卷箱RoughingMill粗轧机FinishingMills精轧机ReheatFurnace加热炉BarDiscolor精轧除鳞DownCoiler卷取机CropShear飞剪SlabDescaler除鳞机StripCooling带钢冷却TheFundamentalProblemInaConventionalHSM传统热轧的基本问题TemperatureLossoftheTransferBar中间坯的温度损失FinishingMillTemperature精轧温度0251001255075F.M.DeliverySpeed(m/min)RollingTime(sec)EntryTemp.FinishingTemp.6007008009001000500900950100010501100Temperature(°C)SpeedPower6Std.TotalPower(kWx103)4035302520精轧出口速度m/min速度功率入口温度精轧温度轧制时间（秒）总功率（KWx103）温度TheSolution解决方案Rollatconstantspeed以恒定速度轧制Heatthetransferbar加热中间坯Coilthetransferbartoreduceheatloss卷取中间坯以减少热损失AdvantagesofaCoilbox热卷箱的优势Reductioninheatloss;减少热损失97%reductioninsurfaceareaoftransferbar中间坯的表面热损失减少97%Reducedheatlossbyafactorof30减少30%热损失Barlength=100mBarthickness=23mmWidth=1600mmTotalArea=324.67m2Diamoutside=1838mmDiaminside=600mmWidth=1600mmTotalArea=10.82m2钢坯长度=100m钢坯厚度=23mm宽度=1600mm总面积=324.67m2外径=1838mm内径=600mm宽度=1600mm总面积=10.82m2MillEntryTemperatureComparison轧机入口温度比较Time(sec)0507510098010301080Conventionalt~-80°CCoilboxt~±12°C25100Temperature°CTime(sec)0507510098010301080Conventionalt~-80°CCoilboxt~±12°C25100Time(sec)0507510098010301080Conventionalt~-80°CCoilboxt~±12°C25100Temperature°C温度热卷箱传统无热卷箱时间（秒）TypicalPowerChartsforCoilboxandConventionalRolling热卷箱轧制和传统轧制的典型功率图Time(Seconds)PowerkWConventionalCoilboxPeakPeak功率时间（秒）传统方式热卷箱峰值CoilboxAdvantages热卷箱的优势Increasedwidthcapability增加宽度Largespecificcoilweight较大的钢卷重量MillProductivity轧制生产率ProductQuality产品质量HigherYield高效益LowerOperatingCosts降低操作成本ReducedCapitalCosts减少资金消耗1525mmHSMProductLimits1525mm热轧产品界限FMEntryTemp(oC)CoilboxNonCoilboxTail1040980925870CannotRoll10.211.913.615.2SpecificCoilWeight(kg/mm)Head精轧入口温度不能轧制热卷箱无热卷箱钢卷重量规格（kg/mm)1525mmHSMProductLimits–LowCarbon1525mm热轧产品界限-低碳5.083.812.542.292.031.781.526007008009001000110012001300StripThickness(mm)CannotRollConventionalRollingStripWidth(mm)CoilboxRolling带钢厚度（mm）带钢宽度（mm）传统轧制热卷箱轧制不能轧制1525mmHSMProductLimits–HighCarbon1525mm热轧产品界限-高碳5.083.812.542.292.031.781.526007008009001000110012001300StripWidth(mm)StripThickness(mm)CannotRollConventionalRollingCoilboxRolling带钢厚度（mm）传统轧制热卷箱轧制不能轧制带钢宽度（mm）CapitalCostSavings节约资金NewConventionalHSMWithoutCoilbox50000kW1302815082390DownCoilersReheatFurnacesReversingRougherCropShearF1F6NewConventionalHSMWithoutCoilbox50000kW1302815082390DownCoilersReheatFurnacesReversingRougherCropShearF1F6DownCoilers31000kW778276257NewCompactHSMWithCoilbox592218ReheatFurnacesReversingRougherCoilboxF1F5CropShearDownCoilers31000kW778276257NewCompactHSMWithCoilbox592218ReheatFurnacesReversingRougherCoilboxF1F5CropShear加热炉可逆粗轧机热卷箱飞剪地下卷取机加热炉可逆粗轧机飞剪地下卷取机新型短流程热卷箱轧制传统无热卷箱轧制HowDoestheCoilboxWork热卷箱是怎样工作的？ThefollowingisabriefoverviewofconventionalCoilboxesandthenewCoilboxdesigns以下是传统热卷箱和新热卷箱设计的介绍CoilFormation热卷取方式Peeling剥皮Uncoiling开卷CoilTransfer钢卷移动CoilEyeFormationMechanism热卷取机械装置HeadReachesCoilFormingRoll头部到达成型辊CurvedBarisDrivenUpwardwhenContactingCradleRoll1A当钢坯接触到1#托卷辊时弯曲的钢坯被向上驱动BarDrivenoffFormingRolltoCompleteFormationofCoilEye钢坯离开成型辊完成卷取CoilingContinues卷取继续进行ThreeRollCoiling-f1475mm3个弯曲辊-直径1475mmEndThreeRollCoiling–Setdown3个弯曲辊结束-放开CoilingComplete卷取完毕PeelerMainArmTuckCylinderPeelerTuckArm开卷主臂开卷插入臂开卷插入臂液压缸StartofUncoiling开始开卷FeedingtoF1输送给F1BaratF1,StartofTransfer钢坯在F1，开始移送MandrellessTransfer无芯移送MandrellessTransfer无芯移送EndofMandrellessTransfer,NewBarArrives无芯移送结束，新钢坯到达SimultaneousCoilingandUncoiling同时进行卷取和开卷ContinueCoilingandUncoilingEndofUncoilingSimultaneousCoilingandUncoilingCoilboxAdvancementMandrel-lessTransferDesignforimprovementmaintenanceDesignfortemperatureimprovementsMinimizeoperatorinterventionCoilRecoveryFurnaceCoilReheatFurnaceCoilboxHotStripMillConfigurationsNewcompactHotStripMillforfullthicknessslabsRetrofitsandrelocationsofexistingconventionalcontinuousandsemi-continuousHotStripMillsEndlessrollingSemi-endlessrollingMediumthicknessslabcasterMediumthicknessslabcasterclosedcoupledtotheCoilboxCombinationConventionalandMediumThicknessSlabCasterNewCoilboxHotStripMillforFullThicknessSlabsAdvantagesProductrangeProductqualityFlexibilityofslabfeedDirectcharging/hotchargingcapabilitiesCoilboxcoilrecoveryprocessDisadvantagesCapitalandoperatingcostversusmediumandthinslabcaster/HotStripMillcombinationReferenceListPage1of1c:\windows\temp\~wro0002.doc(47)99/Sep/0110:00amBHPWesternPort(formerlyJohnLysaght)Australia1978StelcoLakeErieSteelCanada1983BHPNewZealandSteelLimitedNewZealand1988AnFengSteelCo.,Ltd.Taiwan1990TokyoSteelManufacturingCo.Ltd.Japan1991PanZhiHuaIronandSteelCo.China1993TataIron&SteelCo.India1993SahaviriyaSteelIndustriesCo.,Ltd.Thailand1994EssarSt