年产200万吨薄板坯连铸连轧

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：年产200万吨薄板坯连铸连轧带钢生产线工艺设计学生姓名：学号：专业班级：学部：材料化工部指导教师：2010年05月30日摘要I摘要薄板坯连铸连轧与传统生产工艺流程相比，具有可节约投资、提高成材率、降低生产成本、大幅度缩短生产周期等优点。目前市场上对薄带钢如镀锌板的需求很大，而用传统的冷轧花费较高，生产周期长。有些一般用途薄板如果能用热轧直接生产，这将大大降低成本。这也进一步促进了对薄板坯连铸连轧技术作更深层次的研究。基于上述前提，结合目前国内外薄板坯连铸连轧的生产状况，本文设计了年产200万吨薄板坯连铸连轧带钢的生产工艺。在本次设计中，重点是对工艺进行设计，通过采用两架粗轧和六架精轧轧机，缓和以往薄板车间生产超薄规格时板形、跑偏等问题，而且适应今后板坯向中薄方向发展的趋势具有开发新产品的巨大潜力。另外合理地选取了结晶器，减少拉漏事故和优化了铸坯质量，为新产品的开发奠定了基础。最后还对本次设计的可行性进行了分析，使得本次的设计能符合实际的要求。设计中涉及的系数部分取的也是现场的经验数值，用到的部分公式也是来自于实际的经验公式，最终完成了本次的设计。关键词：薄板坯连铸连轧；层流冷却；轧制新工艺AbstractIIAbstractComparingwiththetraditionalproductiontechnicalprocess,thinslabcontinuouscastinandrollingtechnicalprocesshastheadvantageofsavingtheinvestment,improvingusefuladultrate,reducingtheproductioncost,reducingtheproductioncycleandsoon.Atpresentinmarketthedemandofthinslablikegalvanizedsheetisverybig,butwithtraditionalcoldrollingexpendituretoohigh,productioncyclelong,alsoisnoteasytocontroltheproduction,ifhotrollingcanusetoproducethiskindofthinbelteventheultrathinbeltproduct,itwillhavethesignificantsignificance.Italsofurtherpromotestorolloverthetechnologytothinslabcontinuouscastingandrollingtomakeadeeperleveltheresearch.Basingontheabovepremise,combiningtheproductionconditionwhichtheunionsatpresentdomesticandforeignthinslabcontinuouscastingandrolling,Ihavedesignedtheproductionrollingoverwhichcanproduces1.5milliontonperyear.Inthisdesign,focusedonthedesignprocess,throughtheuseoftworoughandrolled6finishingmill,easingpastworkshopproductionofthinsheetspecificationsshape,deviationandotherissues,butalsoadapttotheslabinthefuturethindirectionofthedevelopmenttrendofthedevelopmentofnewproductswithgreatpotential.Inadditiontoselectareasonablemold,reduceaccidentsandleakageoptimizationpulltheslabquality,forthedevelopmentofnewproductslaidthefoundation.Finally,onthefeasibilityofthisdesignwereanalyzed,makingthisthedesigntomeettheactualdemand.Involvedinthedesignofthecoefficientisalsopartofthescenefromtheexperienceofvaluetousepartoftheformulaisfromtheactualexperienceoftheformula,thiscompletedthefinaldesign.Keywords:thinslabcontinuouscastingandrolling,thelaminarcooling,newrollingtechnology目录1目录摘要.............................................................................................................................................IAbstract..........................................................................................................................................II引言.............................................................................................................................................1第1章文献综述........................................................................................................................21.1国内外发展现状................................................................................................................21.2国内新产品的开发............................................................................................................31.3薄板坯连铸连轧的研究意义............................................................................................4第2章建厂的依据及车间的概述.........................................................................................52.1建厂的依据........................................................................................................................52.1.1地理与资源.............................................................................................................52.1.2可行性研究.............................................................................................................52.2车间的概述........................................................................................................................62.2.1产品大纲的拟定原则.............................................................................................62.2.2产品大纲的制定.....................................................................................................62.3工艺流程............................................................................................................................7第3章车间的布置及所用设备的选择...............................................................................93.1车间布置及设备选用的原则............................................................................................93.2结晶器的选择....................................................................................................................93.3车间布置及轧机型式及数目等参数的确定..................................................................123.3.1立辊轧机的选用...................................................................................................133.3.2轧机数的确定.......................................................................................................143.3.3粗轧机的确定.......................................................................................................143.3.4中间辊道布置的确定...........................................................................................163.3.5精轧机的确定.............................................................................