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学号：200906040106HEBEIUNITEDUNIVERSITY毕业设计说明书GRADUATEDESIGN设计题目：年产280万吨1780热轧带钢车间设计学生姓名：张志芳专业班级：09成型1班学院：冶金与能源学院指导教师：杨海丽教授2013年05月28日摘要-I-摘要板带材生产的技术水平不仅是冶金工业生产发展水平的重要标志，也反映了一个国家工业与科学技术发展的水平。建设现代化的热轧宽带钢轧机要满足现代工业对热轧板品种质量的要求。而最终产品的质量首先取决于连铸胚的质量，其次取决于轧钢工艺的设计，如轧机的刚度、轧机的布置形式等等。所以工艺设计是否合理不仅关系到产量，还关系到最终产品的质量。基于以上考虑，本次设计结合本钢1700mm、唐钢1700mm、莱钢1500mm、宝钢1580mm、鞍钢1780mm、梅钢1422mm热轧生产线设计了280万吨1780mm常规热连轧生产线，在此设计中详细的介绍了加热、粗轧、热卷取、精轧、冷却、卷取等一系列过程。其中精轧机选取7架大断面牌坊和高吨位轧制力轧机，采用工作辊正弯辊（WRB）技术、CVC轧机和厚度自动控制(AGC)等技术来控制板型和提高厚度精度。另外为提高轧件温度，减少头尾温差，节约轧制能耗，降低工程投资，在精轧前采用保温罩。设计中涉及的技术参数大部分取自现场的经验数值，用到的部分公式也是用来自于实际的经验公式。关键词常规热连轧；保温罩；层流冷却；液压AGC系统Abstract-II-AbstractThelevelofhotstripproductiontechniqueisnotonlyanimportantmarkingofthemetallurgyindustryproducedevelopment,butalsoreflectthelevelofthenationalindustryandsciencetechnique.Toconstructamodernhotwiderollingmillweshouldmeetthequalityrequestofmodernindustrytohotstripspecies.Thequalityofthefinalproductfirstlyreliesonthequalityofcontinuouscastingslab.whatismore,itdependsonthedesignoftherolling,forexamplethearrangementandthestiffnessofthemill.Sowetherthedesignisreasonableisnotonlyrelatetothequantitybutalsorelatetothequality.Basedontheabovepremise,thisdesigncombineTangsteel1450,Bensteel1700,Baosteel1580andAnsteel1780hotrollingproductionlinetodesign2.8milliontontraditionalhotcontinuousrollingworkshop.Inthispaperitintroducedtheheatfurnace,theroughrollingindetail,theheatbox,thefinishrolling,thelaminarcooling,thecurlandsoon.Amongthem,Thefinishingmillstillselectedthebigcrosssectionmemorialarchandthehightonnagerollingstand,andchoseCVCmill,workrollbendtechniqueandautomaticgaugecontroltocontrolstripshapeandthickness.Moreover,inordertoraisethetemperatureofrollingmetalandreducethedifferencetemperaturebetweenthetailandtheheadofrollingmetal,Iestablishahotcurlboxbetweentheroughrollingandthefinishingrolling.Thecoefficientinthisdesignandpartsofformulascomefromactualexperience.Keywordsconventionalcontinuousrolling,heatbox,laminarcooling,automaticgaugecontrol目录-III-目录摘要.............................................................................................................................IABSTRACT..................................................................................................................II第1章绪论..................................................................................................................11.1热轧板带钢的发展历史.....................................................................................11.1.1热轧板带钢的发展史...................................................................................11.1.2我国热轧板带钢生产的发展史...................................................................11.2热轧轧技术的发展现状及趋势..........................................................................21.2.1热轧板带钢的发展现状...............................................................................21.2.2热轧板带钢的生产工艺及特点...................................................................31.2.3热轧板带钢的发展趋势...............................................................................4第2章建厂依据及产品大纲......................................................................................52.1建厂依据..............................................................................................................52.1.1可行性研究....................................................................................................52.1.2地理与资源...................................................................................................52.2产品大纲.............................................................................................................62.2.1坯料...............................................................................................................62.2.2产品规格........................................................................................................72.2.3钢种方案.......................................................................................................7第3章车间布置及主要设备的选择..........................................................................93.1车间布置及设备选用的原则..............................................................................93.2主要设备的选择.................................................................................................93.2.1除鳞设备.......................................................................................................93.2.2板坯宽度测压设备......................................................................................103.2.3轧制总道次的确定......................................................................................143.2.4粗轧机..........................................................................................................143.2.5保温装置......................................................................................................173.2.6精轧机..........................................................................................................193.2.7压下装置......................................................................................................233.2.8活套装置........