年产490万吨热轧板带钢车间设计

辽宁科技大学本科生毕业设计（论文）第I页年产490万吨热轧板带钢车间工艺设计摘要国民经济建设与发展中大量使用金属材料，其中钢铁材料占有很大比例，板带钢产品薄而宽的断面决定了板带钢产品在其生产和应用上有其特有的优越条件，而热轧带钢工艺的成熟，更是为冷轧生产提供了优质的原料，大大地满足了国民生产和生活的需要。本车间参考鞍钢2150生产线，设计生产能力为年产490万吨，典型产品为：Q345-A，2.5mm1400mm。主要设备有三台步进式加热炉，一台粗轧除鳞机，一架四辊可逆粗轧机（5000吨），六机架四辊精轧机组(3架CVC轧机和3架PC轧机)，三台卷取机，及各种附属设备。设计以年产量为基础，结合各产品的市场前景合理地分配各产品的产量，制定产品方案和金属平衡。以典型产品为例，制定了工艺流程和压下制度、速度制度、温度制度、辊型制度等，并校核了轧机生产能力，计算了各项经济技术指标，绘制了一张车间平面图。在专题中详细论述了铝及铝合金种类,生产工艺及应用。关键词：热轧带钢；压下规程；铝及铝合金；成型工艺辽宁科技大学本科生毕业设计（论文）第II页Annualoutputof4.90milliontonsofhotrolledflatsteelplantprocessdesignAbstractLotsofmetalmaterialsarebeingusedincountry’seconomicconstructions,steelmakesupabigproportion,Theproductofsteelstriparewidelyproducedandusedbecauseofitsspecialsuperiorfunction.Asitsindustrialartgetclosetomaturityandprovidecoldrolledsteelstripwithrawmaterialofexcellentquality,whichsatisfyrequirementsofpeople’slives.Referingtothe2150HotRollingStripSteelPlantofAnSteel,thedesignedplanthasanannualcapabilityof4.90millionstonsfortypicalproductofQ345-A,2.5mm1400mm.Themaojorfacilitiesinclude:threewalkingbeamfurnaces,onedescalingmachineforroughrolling,one4-rollreversingbloomingmill(5000tons),one6-standand6-rollfinishingmillgroup(3ContinuouslyVariableCrownrollingmillsand3PairCrossrollingmills),threecoilers,andappurtenances.Consideringmarketprospect,theyield,productscheme,andmetalbalanceofeachkindofproductareappropriatelydesignedbasedontheannualplantcapacity.Forthetypicalproduct,theprocessflowdiagram,depressingsysterm,velocitysystem,temperaturesystem,andcrownsysterm,etc.aredetermined.Furthermore,theproductioncapacityoftherollingmillischecked,theeconomicandtechnicalnormsarecauculated,andaplanefigureforthisworkshopisdrafted.Inthechapterofspecialtopic,Thespecies，industrialartsanduseofaluminumanditsalloyarediscussedindetail.Keywords:hotrolledsteelstrip,depressingschedulel,aluminumanditsalloy,speciesanduse辽宁科技大学本科生毕业设计（论文）第III页目录摘要.....................................................................................................IAbstract.......................................................................................................II1综述.........................................................................................................11.1热轧板带的发展史............................................11.2热轧及热轧的现状............................................11.2.1热轧定义..............................................11.2.2热轧工艺优点..........................................21.2.3热轧工艺不足之处......................................21.2.4热轧板带的分类........................................21.2.5热轧板带钢的规格......................................31.2.6热轧板带钢生产的大体工艺流程..........................41.2.7新型轧机简介..........................................51.2.8国内热轧板带的生产现状................................61.3热轧及热轧板带生产未来发展方向..............................71.4本设计的目的和意义.........................................82产品方案和金属平衡....................................92.1产品方案的编制.............................................92.1.1产品方案简介..........................................92.1.2编制产品方案的原则及方法..............................92.1.3选择计算产品..........................................92.2产品特点...................................................102.2.1热轧产品品种及产品钢号标准...........................102.2.2产品质量标准..........................................112.2.3产品性能.............................................122.3确定产品方案...............................................132.4编制金属平衡表.............................................143主要设备及参数的确定..................................163.1加热炉....................................................163.1.1加热炉的主要结构及特点...............................163.1.2加热炉的主要尺寸.....................................163.1.3加热温度、时间及产量.................................173.1.4设备规格.............................................173.2粗轧主要设备..............................................17辽宁科技大学本科生毕业设计（论文）第IV页3.2.1粗轧除鳞装置.........................................183.2.2粗轧机...............................................183.3精轧主要设备..............................................193.3.1带坯边部加热器.......................................203.3.2切头飞剪.............................................203.3.3精轧除鳞装置.........................................213.3.4精轧立辊轧机F1E.....................................213.3.5精轧机组轧机.........................................223.4保温装置的选择.............................................253.5层流冷却...................................................253.6卷取设备...................................................263.7生产方案的选择.............................................294轧制工艺及轧制制度的确定..............................304.1生产工艺流程..............................................304.1.1生产工艺简介.........................................304.1.2生产工艺流程概述.....................................304.2加热制度..................................................314.2.1加热的目的...........................................314.2.2加热的要求...........................................324.2.3加热温度的确定.......................................324.2.4加热时间的确定.......................................334.2.5加热速度的确定...........