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毕业设计题目：年产6000吨聚丙烯酸钠工艺设计学院：化学与材料工程学院专业：高分子材料科学与工程姓名：学号：指导老师：张艳花完成时间：2013-5-30河南城建学院本科毕业设计设计说明I设计说明本次设计是利用单体丙烯酸钠在一定条件下，采用反相悬浮聚合原理合成聚丙烯酸钠。本设计的任务是年产6000吨聚丙烯酸钠悬浮聚合间歇操作工艺的设计。其中主要简述了以丙烯酸和氢氧化钠聚合性单体为主要成分，在疏水性溶剂正庚烷中经反相悬浮聚合，制备高吸水性聚丙烯酸钠。还介绍了聚丙烯酸钠的性质、特性、用途和使用举例以及悬浮聚合的机理、体系和生产工艺，间歇操作的特点及主要原料。设计主要成果如下：①每天的理论产值是18181kg。实际产量为18552kg。实际年产量为6122t。直径为2500mm配碱釜，直径为1600mm的中和釜，直径为2500mm的聚合釜。体积为123m的分散介质调配罐，分散介质储罐体积为243m。材料为不锈钢。②主要设备：推进式搅拌器，标准椭圆形封头；支承式支座，釜体夹套。123m的分散介质调配罐，243m的分散介质储罐。沉降式离心机，规格为LW350×1050。配碱釜，中和釜，聚合釜，去离子水储罐。③图纸：1）工艺流程图、2）物料流程图、3）聚合釜的装配图。关键词：聚丙烯酸钠物料衡算热量衡算生产工艺主要设备图工艺流程图河南城建学院本科毕业设计设计说明IIDesignNotesThisdesignistheuseofsodiumacrylatemonomerundercertainconditions,synthesizedbyinversesuspensionpolymerizationprinciplesodiumpolyacrylate.Thedesignofthemissionistoproduce6000tonsofhighabsorbentresinsuspensionpolymerizationprocessdesignintermittentoperation.Mainlyacrylicacidandsodiumhydroxideoutlinedpolymerizablemonomerasamaincomponent,inahydrophobicsolventofn-heptanebyreversed-phasesuspensionpolymerization,sodiumpolyacrylatesuperabsorbentprepared.Italsodescribesthenatureofthesodiumpolyacrylate,characteristics,usesandexamplesaswellassuspensionpolymerizationmechanisms,systemsandproductionprocesses,intermittentoperationcharacteristicsandmainrawmaterial.Designofthemainresultsareasfollows：1)Dailytheoreticalvalueis18181kg.Actualproduction18552kg.Actualannualoutputof61220t.2)Withabasediameterof2500mmautoclave,thediameterof1600mmandakettle,adiameterof2500mmpolymerizationvessel.Volumeofthedispersionmediumtomixthepot12,avolumeof24.Madeofstainlesssteel.3)Mainequipment:push-stirrer,standardellipticalhead;bearingtypebearings,kettlebodyjacket.Deploymentdispersionmediumtank12,adispersionmediumtank24.Decanters,specificationsfortheLW350×1050.Autoclaveequippedwithabase,neutralizationreactor,thepolymerizationreactor,deionizedwatertank.4)Drawings:1)ProcessFlowDiagram,2)materialflow,3)polymerizationreactorassemblydrawing.Keywords:Sodiumpolyacrylatematerialbalanceheatbalanceproductionprocessflowchartdiagramofmajorequipment河南城建学院本科毕业设计目录i目录设计说明.........................................................................................................................I1概述............................................................................................................................11.1高分子量聚丙烯酸钠研究现状.........................................................................11.2高分子量聚丙烯酸钠的性质和应用.................................................................21.2.1聚丙烯酸钠的性质.......................................................................................21.2.2聚丙烯酸钠的应用.......................................................................................21.3高分子量聚丙烯酸钠的需求、生产和应用前景.............................................31.4项目的设计依据.................................................................................................41.5建厂规模及产品规格.........................................................................................51.5.1建厂规模.......................................................................................................51.5.2产品规格.......................................................................................................52聚丙烯酸钠的生产工艺............................................................................................62.1聚丙烯酸钠聚合的实施方法.............................................................................62.2反向悬浮聚合工艺条件及其影响因素[14].........................................................72.2.1分散剂及其助分散剂的选择及其浓度对分子量的影响............................72.2.2引发体系的选择及其浓度对分子量的影响...............................................82.2.3单体浓度对分子量的影响...........................................................................82.2.4链转移剂对分子量的影响...........................................................................92.2.5搅拌转速的影响...........................................................................................92.3后处理工序的选择...........................................................................................102.3.1分离方法的选择.........................................................................................102.3.2干燥方法的选择.........................................................................................102.4聚丙烯酸钠的生产工艺流程...........................................................................102.5生产过程主要操作及控制...............................................................................113.1物料衡算与热量衡算.......................................................................................123.1.1物料衡算.....................................................................................................123.1.2热量衡算......................................................................................................153.2主要设备工艺尺寸的计算及选型...................................................................183.2.1各釜体高度与内径尺寸确定......................................................................183.2.2各釜体夹套尺寸的确定.............................................................................21河南城建学院本科毕业设计目录ii3.2.3分离设备....................