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（括号里填学校名称）本科毕业论文￠3.5/3×60m水泥回转窑电气控制系统设计学生姓名：***学生学号：0000000院（系）：******学院年级专业：****级****指导教师：****助理指导教师：二〇一一年六月*****本科毕业论文摘要I摘要在建材、冶金、化工、矿物加工和环保等许多行业中，广泛地使用回转圆筒型设备对散装或浆状物料进行物理或化学处理，这种回转圆筒设备被称为回转窑。水泥生产是由原料预处理(均化、破碎、烘干等)、生料制备(配料、粉磨、均化)、熟料锻烧(分解预热、锻烧、煤磨)、水泥制成(水泥配料、粉磨、包装)四大部分组成，其中水泥熟料的煅烧是水泥生产中最重要的过程，所用的设备水泥回转窑，常被称为水泥厂的心脏。水泥回转窑由机械、电气、液压等部分组成。通过研究设计主要用PLC为核心控制水泥回转窑系统，主要包括有:①回转窑辅助电机的正常运转控制。②主电机的变频调速控制。③燃烧器移动小车的正反转运行控制。④主减速机润滑站的控制应按TE525润滑站的压力、温度、液位等控制。⑤挡轮液压站TE326的控制。结论控制方案包括:①主电机为变频调速电机，故采用变频器控制其调速运行。②辅助电机、燃烧小车的控制比较简单，直接用继电接触器控制其运行。③挡轮液压站、主减速机润滑站因控制内容多，工艺复杂，两者均采用由PLC控制的方式，利用PLC的硬件电路与软件结合，实现挡轮液压站、主减速机润滑站的正常运转与故障报警等控制功能。关键词水泥，回转窑，PLC，控制系统******本科毕业论文ABSTRACTIIABSTRACTInbuildingmaterials,metallurgy,chemical,mineralprocessing,environmentalpr-otection,andmanyotherindustries,peoplewidespreaduseofrotatingcylindricaldeviceonthebulkorslurrymaterialtodophysicalorchemicaltreatment,which-hisknownasrotarykilnthatwithrotatingcylinderdevice.Cementproductioniscomposedbytherawmaterialpretreatment(homog-e-nizing,crushing,drying,etc.),rawmaterialpreparationingredients,grinding,homogeniz-ation),clinkercalcination(decompositionandpreheating,calcination,coalmill),ceme-ntproducts(Cementbatching,grinding,packaging).Andcalciningcementclinkerwhichisthemostimportantcementproductionprocess,soitsequipment–cementrotarykiln,oftenreferredtoastheheartofcement.Cementkilnconsistofmec-hanical,electrical,hydraulicandothercomponents.BystudyingandthedesignofcementrotarykilnsystemwewillusePLCasthemaincoreofthecontrol.Tha-tincluding:Firstly,rotarycontrolofthenormaloperationofauxiliarymotors.S-condly,themainmotorofthevariablefrequencycontrol.Thirdly,movethecarreversingtheburneroperationcontrol.ThefourthisthemainreducerlubricationstationcontrolstationsshallTE525lubricationpressure,temperature,liquidlevelcontrol.ThefifthisgearwheelhydraulicTE326control.Conclusionscontrolprograminclude:Firstofall,mainmotorforfrequencyconversionmotor,whichinvertercontrolitsspeedoperation.Secondly,auxiliarym-otors,combustioncar’scontrolisrelativelysimple,whichdirectcontactswiththerelaycontrolitsoperation.Lastbutnotleast,becauseofgearwheelhydraulics-tation,themaingearboxlubricationstation’scontrolcontentsandmorecomplexprocess,bothadoptedbythePLCcontrolmethod,theuseofPLCcombinationofhardwareandsoftwaretoachievegearwheelhydraulicstation,themaingearboxlubricationStopthenormaloperationandfaultalarmcontrolfunctions.KeywordsCement,Kiln,PLC,ControlSystem******本科毕业论文目录I目录摘要.............................................................................................................................IABSTRACT....................................................................................................................II1绪论.............................................................................................................................11.1水泥生产工艺..........................................................................................................11.1.1水泥熟料的煅烧...............................................................................................21.1.2回转窑的发展...................................................................................................21.1.3回转窑的性能和特征........................................................................................31.2水泥回转窑硬件系统技术参数..................................................................................32总体方案设计.............................................................................................................42.1设计任务要求..........................................................................................................42.2电气控制方案..........................................................................................................63水泥窑控制方式.........................................................................................................93.1操作方式.................................................................................................................93.1.1DCS介绍...........................................................................................................93.1.2操作方式设计...................................................................................................93.2与外界的连锁信号.................................................................................................103.3配电系统...............................................................................................................114硬件电路设计...........................................................................................................134.1辅助电机的控制.....................................................................................................134.2燃烧小车的控制.....................................................................................................134.3PLC硬件配置.........................................................................................................134.3.1PLC基本知识..................................................................................................134.3.2PLC机型选择.....................