年产10万吨柠檬酸厂糖化、发酵车间的设计摘要本设计采用薯干原料发酵，只需将薯干磨成粉，加水调浆，直接加入少量α－淀粉酶液化后灭菌、冷却即可接种发酵。制备柠檬酸一般采用晒干的薯干作为原料。其中薯干含水10%-15%、淀粉70%左右、蛋白质6%左右。薯干原料中的蛋白质可作为氮源供菌体生长。薯干原料中含有铁、镁、钾、钙等的无机盐，选用的黑曲霉C0527对这些成分不敏感,故不必对原料做这方面的预处理。本设计采用液体深层好氧发酵、钙盐法提取技术生产柠檬酸。这两种方法都是国内比较流行的生产方法，有着大量的实际经验，易于操作，风险小。由于本设计为糖化、发酵车间的设计，着重于这两个车间的工艺计算、设备选型。通过全厂物料衡算、车间热量衡算，确定糖化、发酵车间主要设备发酵罐、种子罐、车间管道的设计和选型以及全厂及车间布置。本设计还包括发酵罐，全厂平面图，车间平面布置图，工艺流程图。关键词：薯干深层好氧发酵黑曲霉柠檬酸设备设计和选型Annualoutputof100，000tonscitricacidplantsaccharificationfermentation，fermentationplantdesignABSTRACTThedesignofrawmaterialsusedpotatofermentation,simplypotatomills,water-paste,addingasmallamountofdirectα-amylaseliquefaction,sterilization,cooling,fermentationcanbevaccinated.Preparationofcitricacidnormallyusedasrawmaterialsdriedpotato.Potatomoisturecontentof10%to15%,about70percentofstarch,proteinabout6percent.Potatorawmaterialsintheproteincanbeusedassourceofnitrogenforcellgrowth.Potatorawmaterialscontainingiron,magnesium,potassium,calciumofinorganicsalt,optionalblackAspergillusnigerC0527isnotsensitivetotheseingredients,itneednotdoanypretreatmentoftherawmaterials.Thedesignofagoodgasliquidsdeepfermentation,drycalciumcitrateextractiontechnologyproduction.Thetwomethodsaremorepopulardomesticproductionmethods,hasagreatdealofpracticalexperience,easytooperate,therisksmall.Asthedesignforthesaccharificationandfermentationworkshopthedesign,thetwoworkshopsfocusedontheprocess,theselectionofequipment.Throughthewholeplantmaterialbalance,energybalanceworkshop,identifiedglycosylation,fermentationworkshopmajorequipmentfermenter,seedtanks,pipelinesandworkshopsinthedesignandselection.Andthewholeplantandfacilitylayout.ThedesignalsoincludesFermentor,Thefactoryplan,Shopfloorplan,FlowChart.Keywords:PotatoDeep-seatedaerobicfermentationAspergillusnigerCitricacidEquipmentDesignandSelection目录摘要……………………………………………………………………ⅠABSTRACT…………………………………………………………...Ⅱ1.引言……………………………………………………………...........11.1柠檬酸的性质和用途……………………………………………………..11.2柠檬酸的来源和发展情况………………………………………………..12.生产工艺…………………………………………………………………..22.1生产方法…………………………………………………………………..22.2生产流程…………………………………………………………………..22.3操作工艺…………………………………………………………………..32.3.1原料的处理……………………………………………………………...32.3.2发酵工序...............................……………………………………………32.3.3醪液处理工序…………………………………………………………...32.3.4提取工段………………………………………………………………...32.3.5精制工段………………………………………………………………...43.工艺计算书………………………………………………………………..53.1物料衡算…………………………………………………………………..53.1.1工艺技术指标及基础数据……………………………………………...53.1.2原料消耗计算（基准：1吨成品柠檬酸）……...
