新建年产330万吨热轧板带钢车间工艺设计摘要我国现处于工业化时期，国民经济保持较快的发展速度，这为我国钢铁发展提供了广阔的市场空间。板带钢是钢铁产品的主要品种之一，被广泛应用于工业、农业、交通运输和建筑业。我国热连轧带钢生产技术在建国以后得到了较快发展，但一些高要求、高性能的板材仍需进口。因此，新建一个现代化热轧板带车间是很有必要的。本设计是年产330万吨的热轧板带钢车间工艺设计，产品规格为1.0~15.0mm×750~1600mm，所用钢种为普碳钢、优质钢和低合金钢。论文主要包括的内容有：产品大纲及金属平衡表、坯料的选择、轧机的选择及辅助设备的选择、生产工艺的制定、车间工作制度、典型产品工艺计算、并且对主要设备(轧辊和电机)的能力进行了校核，对车间主要经济指标、生产车间布置和环境保护进行了设计和规划。本设计采用半连续轧制，粗轧机是一架二辊可逆轧机和一架四辊可逆轧机，精轧机组由七机架PC轧机组成，还采用液压AGC厚度控制系统，以及边部加热器、在线磨辊(ORG)装置、张力活套控制，并采用层流冷却系统等。全厂采用四级计算机控制系统。关键词:热轧带钢；车间设计；PC轧机；半连续轧制DesignofHotRolledStripPlantwithAnnualOutputof3.3MillionTonsAbstractChinaisintheperiodofindustrialization,andthenationaleconomykeepsarapidpaceofdevelopment,whichprovidesabroadmarketspaceforthedevelopmentofthesteelindustry.Asamainsteelproduct,platestripiswidelyusedinindustry,agriculture,transportationandconstruction.Hotstripproductiontechnologyhasbeeninrapiddevelopmentafterthefoundationofourcountry.However,someplateswithhighperformancestillneedtobeimported.Basedontheaboveanalysis,itisnecessarytodesignahotrolledstripplant.Theplanttobedesignedisahotrolledstriponewithannualoutputof3.3milliontons.Productspecificationis1.0-15.0mminthicknessand750-1600mminwidth.Thesteeloftheproductsincludestheplaincarbonsteel,highqualitysteelandlowalloysteel.Themaincontentsincludeproductoutlineandmetalbalance,rawmaterialselection,equipmentselection,thedevelopmentofproductiontechnology,technologycalculationoftypicalproducts,equipmentselectionandcapabilitycheckofmainequipments(rollandmotor).Atthesametime,majoreconomicindicators,plantlayoutandenvironmentprotectionareconsidered.Asemi-continuousrolling,atwohighreversingmillandafour-highreversingmillarechoseninroughrollingandsevengroupsofPCrollinfinishingrolling.Inthispaper,hydraulicAGCthicknesscontrollingsystem,theedgeheater,on-linerollgrinding(ORG)device,tensioncontrollingloopandcoil-boxarealsoadoptedtoimprovetheproductqualityinthisworkshop.Furthermore,afour-levelcomputercontrolsystemisapplied.KeyWords:hotrolledstrip;designofplant;PCmill;semi-continuousrolling目录1概述.................................................................................................................................11.1我国钢铁工业的发展................................................................................................11.2我国热轧带钢发展、新技术和存在的问题.............................................................21.2.1近二十年的技术..............................................................................................21.2.25我国热轧带钢生产中存在的问题................................................................31.4设计要求及技术水平................................................................................................42产品大纲及金属平衡..........................................................................................................52.1产品大纲....................................................
