MACROBUTTONMTEditEquationSection2方程段1部分1SEQMTEqn\r\h\*MERGEFORMATSEQMTSec\r1\h\*MERGEFORMATSEQMTChap\r1\h\*MERGEFORMAT河北联合大学轻工学院QINGGONGCOLLEGE,HEBEIUNITEDUNIVERSITY毕业设计说明书设计（论文）题目：设计一座年产140万吨方坯的炼钢车间河北理工大学信息学院摘要----摘要本设计的主要任务是设计一座年产140万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50t，平均冶炼时间为30min，纯吹氧时间为15min，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AbstractAbstractAbstractThemaintaskofthisdesignisdesigningaplantwichperduce3.3milliontonsofsteelperyear.Itisbecomethefoundationofthematerialandthermalcalculation,mainlyincludethefollowingparts:thebofmodeldesigning,oxygenlancedesigning,equipmentselectionandcalculationofcontinuouscaster,besides,alsoincludingoperatingandprocesssystemofsteelmaking,thecoreofthedesignisHYPERLINK"http://dict.cnki.net/dict_result.aspx?searchword=%e8%bd%a6%e9%97%b4%e5%b8%83%e7%bd%ae&tjType=sentence&style=&t=plant+layout"plantlayoutingThisdesignhastwo50tconverterforsteelmaking,theaveragetimeofoxygenapplyingis30min,pureoxygenapplyingtimeis15min,theefficientofthebofis80%,scrapmetalandotherauxiliarymaterials.Therateofcastingbilletis98%,inaddition,refiningmainlyadoptswirefeedingandvacuumdeairing,Thefinalproductisbillet.Thedesignmorestrengthenedmymajorknowledge,atthesametimealsounderstandmoreabouttheconvertersteelmakingofeachprocess,laidingagoodfoundationfortheworkoffuture.Keywords:HYPERLINK"javascript:showjdsw('jd_t','j_')"topandbottomcombinedblownconvertersteelmakingrefiningcastingHYPERLINK"http://dict.cnki.net/dict_result.aspx?searchword=%e8%bf%9e%e9%93%b8&tjType=sentence&style=&t=continuous+casting"continuouscasting目录目录目录HYPERLINK\l"_Toc263327692"1绪论1HYPERLINK\l"_Toc263327693"1.1转炉冶炼原理简介[1]1HYPERLINK\l"_Toc263327694"1.2氧气转炉炼钢的特点1HYPERLINK\l"_Toc2633276