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海南大学毕业设计题目：1000吨/年海藻酸钠生产工艺初步设计学号：20090104310011姓名：黄晓玲年级：09级学院：材料与化工学院系别：化学工程与工艺专业：化学工程与工艺指导教师：张德拉，李嘉诚完成日期：2013年05月10日年产1000吨海藻酸钠生产工艺初步设计I摘要海藻酸钠是从褐藻类海带或马尾藻中提取的一种天然多糖碳水化合物，由1-4聚β-D甘露糖醛酸和α-L古洛糖醛酸组成的一种线性聚合物，是海藻酸衍生物中的一种。海藻酸钠易溶于水，具有增稠，悬浮，乳化，稳定，形成凝胶和薄膜的优良特性，使其在食品、印染、医药、化妆品和其他化工行业有着广泛的应用。本次设计采用钙凝-离子交换法，从海南野生马尾藻中提取海藻酸钠。通过对海藻酸钠提取原理的阐述，设计出一套完整的海藻酸钠生产方案。设计对整个工艺流程进行了完整的物料衡算和热量衡算，并对主要设备进行具体的设计和选型。同时也对污水处理，环境保护和厂房设计进行了具体的说明和处理。本次设计还提供了工艺流程和主要设备的初步设计图纸。关键词：海藻酸钠；生产工艺；初步设计年产1000吨海藻酸钠生产工艺初步设计IIAbstractSodiumalginateisanaturalcarbohydrateextractedfromBrownalgaelaminariaorSargassum.Itisakindoflinearpolymerswhichiscomposedof1-4poly-β-Dmannuronicacidandα-Lguluronicacid,anditisakindofalginicacidderivatives.Sodiumalginateissolubleinwater,withthickening,suspension,emulsion,stability,excellentpropertiesofgelformationandfilms,ithasbeenwidelyusedinfood,textile,medicine,cosmeticsandotherchemicalindustry.Thisdesignusescalciumcoagulation-ionexchangemethodtoextractsodiumalginatefromHainanwildsargassum.Bydescribingtheprincipleofsodiumalginateextracting,wedesignacompletesetofsodiumalginateproductionplan.Whichconcludethedesignofthematerialbalanceandheatbalancecalculationofthewholeprocess,anddesignandselectionofmainequipmentconcretely.Alsoonthesewagetreatment,environmentalprotectiondesignandplantaredescribedanddealwithconcrete.Thedesignalsoprovidespreliminarydesigndrawingsoftheprocessflowandmainequipment.Keywords:Sodiumalginate;productiontechnology;thepreliminarydesign年产1000吨海藻酸钠生产工艺初步设计1目录1.总论.............................................................................................................................11.1概述...................................................................................................................11.1.1海藻酸钠的性质.....................................................................................11.1.2产品用途.................................................................................................21.1.3从马尾藻中提取海藻酸钠的意义.........................................................41.1.4海藻酸钠的市场供需及价格情况.........................................................41.1.5海藻酸钠发展前景.................................................................................51.2设计的目的和意义...........................................................................................51.2.1设计的目的.............................................................................................51.2.2设计的意义.............................................................................................51.3设计依据和原则...............................................................................................61.3.1设计依据.................................................................................................61.3.2设计原则.................................................................................................61.4设计范围...........................................................................................................61.5海藻酸钠生产能力及产品质量标准...............................................................71.5.1生产能力.................................................................................................71.5.2产品质量标准.........................................................................................72.生产方案选择..........................................................................................................82.1生产方法...........................................................................................................82.1.1酸凝-酸化法生产海藻酸钠...................................................................82.1.2钙凝-酸化法生产海藻酸钠...................................................................92.1.3钙凝-离子交换法生产海藻酸钠...........................................................93.生产工艺流程设计及说明......................................................................................113.1“钙凝-离子交换法”生产工艺流程设计.........................................................113.2生产工艺流程说明.........................................................................................114.工艺计算..................................................................................................................124.1物料衡算.........................................................................................................124.1.1原辅物料的计算...................................................................................124.1.2物料衡算汇总列表...............................................................................144.1.3水、电煤的用量计算...........................................................................154.2热量衡算.........................................................................................................164.2.1消化工段热量衡算...............................................................................164.2.2浓缩工段热量衡算...............................................................................164.2.3干燥工段热量衡算...............................................................................185.设备设计与选型................................................................................................