年产330万吨全连铸坯的转炉炼钢车间工艺设计专业：冶金工程姓名：朱江江指导老师：折媛摘要本设计的主要任务是设计一座年产330万吨方坯的转炉炼钢车间。本设计从基础的物料平衡和热平衡计算开始，主要包括以下几部分：转炉炉型设计、氧枪设计、转炉车间设计、连铸设备的选型及计算、以及炼钢操作制度和工艺制度，其中，转炉炼钢车间设计是本设计的重点与核心。本设计设有转炉两座，转炉大小均为150t，平均吹氧时间为38min，纯吹氧时间为18min，转炉作业率为80%，转炉的原料主要有铁水、废钢以及其它一些辅助原料。连铸坯的收得率为98%，另外本车间炉外精炼主要采用了喂丝以及真空脱气手段。本车间的浇注方式为全连铸。车间的最终产品为方坯。此次的设计任务更加巩固了我所学的专业知识，与此同时也更加了解了转炉炼钢车间的各道工艺流程，为以后的工作打下了良好的基础。关键词：顶底复吹转炉炼钢车间精炼连铸AbstactThemaintaskofthisdesignisdesigningaplantwichperduce3.3milliontonsofsteelperyear.Itisbecomethefoundationofthematerialandthermalcalculation,mainlyincludethefollowingparts:thebofmodeldesigning,oxygenlancedesigning,equipmentselectionandcalculationofcontinuouscaster,besides,alsoincludingoperatingandprocesssystemofsteelmaking,thecoreofthedesignisplantlayoutingThisdesignhastwo150tconverterforsteelmaking,theaveragetimeofoxygenapplyingis38min,pureoxygenapplyingtimeis18min,theefficientofthebofis80%,scrapmetalandotherauxiliarymaterials.Therateofcastingbilletis98%,inaddition,refiningmainlyadoptswirefeedingandvacuumdeairing,Thefinalproductisbillet.Thedesignmorestrengthenedmymajorknowledge,atthesametimealsounderstandmoreabouttheconvertersteelmakingofeachprocess,laidingagoodfoundationfortheworkoffuture.Keywords:topandbottomcombinedblownconvertersteelmakingrefiningcastingcontinuouscasting目录1绪论.....................................................................................................................................................71.1转炉冶炼原理简介[1].....................................................................................................................71.2氧气转炉炼钢的特点....................................................................................................................81.3设计原则和指导思想....................................................................................................................91.4产品方案........................................................................................................................................92氧气转炉炼钢车间.............................................................................................................................112.1初始条件......................................................................................................................................112.2公称容量选择[2]...........................................................................................................................112.3转炉座数的确定.........................................................................................................................112.4根据生产规模和产品方案计算出年需钢水量。......................................................................122.5计算年产钢量.............................................................................................................................123转炉物料平衡和热平衡计算..............................................................................................................
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