简介：Theproductionindexesweredeterioratedduetoqualitycoke,UtilizationFactor2.0t/m3·d,PCI100kg/T,AccordingtoAnalysistheMechanismofProductionoflowhotstrengthcokequalityonBlastFurnaceSmooth,ThecokecoldstrengthretainedM10<6.3overalongperiodoftimeinordertoinsurecokegranularityandpermeabilityindexincohesivezone;Aad<12andgranularitytranquilizationisusefulBFproduction.ThePCIprotectcokehotstrengthbyhighratebituminouscoals;highrateH2inBFgasbatecokedemolish.blastfurnaceoperation,onmonitoringandoperationBF,tranquilizationtheBLASTFURNACEtemperature,PTcontrolsparameterareaisabout1500℃;strengthenmanagementofpermeabilityindex,improveTop-pressureforBlastFurnace,StrengtheningtheManagementoftheRawMaterialsandFuel,logicalrateofsinterLeveloffabout70%toimproveMetallurgicalPropertiesofBurdens.ParametersofwindhavebeenadoptedAbout10000-11000kg·m/s;,theoreticalflametemperatureinablastfurnacehavebeenadjustedareaisabout2050-2200℃;thetemperaturedirectionaboutcopperstavemanagementestablishedact;accordingtothismeasures,AccordingtoImprovementCenterGasFlowInstabilityinthefirstplace,thegasflowdistributionturnstothereasonablestate.Strengthenfurnacecasthouseoperationect,UtilizationFactorimprove2.2t/m3·d,PCI130kg/T.ColdandhotstatestrengthindexesofcokeonBFproductionwereinstability.AccordingtooptimizetheOperatingParameteinspecificallyeconomytechnologyindexesconduction,theBFcondictioncankeepingsteadyandsmooth.

简介：以I/A’S集散控制系统在35000m3/h制氧机组上的应用为例,介绍了其硬件配置、功能及软件功能。

简介：Loadingdistributionforheavyplatemillistofindoptimalcontrolsolutionsunderthegrantedperformanceindicatorsandconstraintsincludingmillcapacityandhypothesisofrollingmodels.Thesolutionsarequitedifferentfordifferentperformanceindicators.Inthearticle,theperformanceindicatorsandsequentialquadraticprogramming(SQPforshortbelow)methodsemployedin5000mmheavyplatemillofBaoSteelarepenetratinglyanalyzed.Generally,theSQPmethodisaneffectiveandfastwaytosolvethenonlinearprogrammingproblemswithsmallormediumscaleconstraints.Earlyin1976,HanputforwardtheSQPmethodforthefirsttimeandPowellmadeitperfectandaccomplishedthealgorithmin1977.Infact,SQPmethodwastoturnanonlinearprogrammingproblemtoaseriesofsubsetofquadraticprogrammingproblems.Inthealgorithm,eachiterationstepistosolveonequadraticprogrammingproblem.Theoptimalsolutionswillbegraduallyapproachedafterquadraticprogrammingproblemsweretotallysolved.Whensolvingthequadraticprogrammingproblem,theactivesetstrategywereemployedwhichturnedtheconstrainedquadraticprogrammingproblemtounconstrainedquadraticprogrammingproblem.Theactivesetstrategymadethewholequadraticprogrammingproblembesolvedbyaleastsquareproblem.Andfinally,thematrixoftheleastsquareproblemwouldbedecomposedbyQmatrixandRmatrix.AfterQmatrixandRmatrixwereobtained,theoptimalsolutionswouldbefinallyfound.Forloadingdistribution,theperformanceindicatorswerecomposedbyplateshapeanddraftofeachpass.Plateshapeisrepresentedbyrollingforcegraduallyreducedpassbypasswithatunablefactor.Themillcapacityisanotherperformanceindicatorrepresentedbydraftofeachpass.Forheavyplatemill,themillcapacityhereisthemotormoment.Forheavydraft,themotorwouldbeoverloadedespeciallyforthefirstseveralpasses;forsmalldraft,themotorwouldbeloadedslightly.Allthesewouldnotbepermittedtohappenwhen

简介：Baosteel's5mheavyplateplantwassuccessfullytestedonMarch1,2005.Sincethen,theHeavyPlatePlantofBaosteel(hereinafterreferredtoas'theplant')hasbeenencouragingitsemployeestostudyandtracetheadvancedheavyplatetechnologies,tryingtofindouttherulesofheavyplateproductionanditsqualitycontrol.TheplanthasgraduallymasteredthismodernheavyplateplantandensuredthatBaosteel'sproductionofheavyplatesgrewyearbyyear,with1.41Mtproductputinstoragein2007.Theplanthasfocusedondevelopingnewtechnologiesandproducts,meanwhileenhancingitscapacity.Ithasproducedaseriesofplateproducts,whichcanbeusedinmanufacturingshiphulls,pipelines,bridges,buildings,boilersandpressurevessels.

简介：TheinfluenceofrareearthoxideCeO2onmicrostructureandwearresistanceofM80S20thermalsprayandthermalsprayweldingcoatingsisstudiedusingopticalmicroscope,scanningelectronmicroscope,X-rayenergydispersionspectroscope,X-raydiffractometerandweartestingmachine.Theresultsshowthattheaddi-tionof8%CeO2canimprovethemicrostructure,microhardnessandwearresistanceofcoatingssignificantly.

简介：Baosteel'sNo.8airseparationunit(ASU)isthefirstdomestically-integrated60000m3/hASU.Thispaperdescribesthemechanicalequipment,thedesignandtheconfigurationcharacteristicsofthisunit.ThepotentialfailuremodesofthemechanicaldevicesarededucedviaanalysesonthefailurehistoryofsimilardevicesinotherASUs.Finally,thispaperalsobringsupsuggestionsondailymaintenance,overhaulandpurchasesofspareparts.

简介：济钢对闲置的M84100／5M轧辊磨床的改造，既满足了宽厚板生产的需要，还节约了资金，同时也为轧辊磨床的改造积累了经验。

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简介：运用有限元分析软件MIDAS,对30m跨度钢网架结构进行了静力、动力特性的计算,分析了其动力响应的特点,并根据规范要求对各工况荷载作用下的强度和刚度验算,其验算结果均满足现行规范要求.

简介：介绍了南钢2500m^3高炉顺利开炉生产过程，并对2500m^3、2000m^3高炉开炉生产情况进行对比分析。2500m^3高炉采用的对称堵风口、铁口埋设氧枪、4个风口安装热风导管等方法对以后的开炉生产具有借鉴和指导意义。

简介：介绍武钢三炼钢800m~3/45m倒锥壳水塔施工——人工挖孔桩、水柜施工及施工中应注意的事项。

简介：阐述了7m推焦车与6m推焦车取门装置各部件的机械性能和优缺点，提出了取门装置的优化设计方向。

简介：2500m^3高炉采用了当今国内一系列先进的新技术、新工艺、新设备，经过开炉前的精心准备，科学实施开炉方案，高炉顺利投产并快速达产。其后，很快进入强化冶炼阶段，通过创新思维，加强管理，摸索出了一套适宜铜冷却壁薄炉衬高炉的上、下部操作制度，高炉生产水平迅速上升，开炉仅半年，各项指标均创历史记录，达到国内一流水平，实现高产、稳产。

简介：采用相变点测量、金相组织观察和力学性能测定,研究了不同正火温度对60mm厚Q345E钢板组织和性能的影响。结果表明：910℃×60min正火处理后,钢板组织更为均匀,晶粒更为细化,力学性能优越,达到国标要求。

简介：应用Gleeble-3800热模拟试验机对E36-T板坯在700～1050℃温度区间进行了拉伸试验,绘出温度与断面收缩率的关系曲线,得出700～920℃为脆性区,因此矫直温度应避开此区间。利用扫描电镜断口观察和金相分析,确定不同温度区间塑性降低的原因。

简介：Throughout30yearsofimportation,adoptionandinnovation,theColdRollingPlantofBaosteelhasadheredtoamarket-orientedstrategy,andgraduallyexpandeditsoutputandraiseditstechnicallevelthroughtheexpansionofproductionscale,theoptimizationofproductionlines,thedevelopmentofhighaddedvalueproducts,theimprovementofproductquality,environmentallyfriendlymanufacturingandtechnologicalinnovation.Inthisway,theplanthasdevelopedintoaworldclasscoldrollingplantthatproducescutting-edgeeconomicandtechnicalindices.

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简介：<正>前言随着我国法制化的日趋健全和完善,安全生产监督管理体系也逐步向科学化、规范化、制度化发展,工程完工总结作为现代先进安全生产管理模式的主要内容之一越来越受到重视。"安全第一、预防为主、综合治理"是我们党和国家始终不渝的安全生产方针,工程总结正是突出"安全第一、预防为主、

简介：通过加强进厂原燃料管理、强化炉前出铁管理、实施大富氧率喷吹技术和优化高炉基本操作制度，太钢4350m^3高炉的燃料比降到500kg／t以下，利用系数达到了2．4t／m^3·以上，实现了高炉稳定、均衡和高效生产。

简介：对南钢2500m3高炉开炉及快速达产进行了总结。南钢2500m3高炉采用上罐固定中心卸料式串罐无料钟炉顶、软水密闭循环冷却、陶瓷杯+高导热炭砖炉底、铜冷却板结合铜冷却壁等先进技术。在开炉过程中,选择合适的炉料和配比,进行装料测试,确立了合适的装料制度和操作参数,使得高炉开炉顺利并实现了快速达产。