年产375万吨酒精生产装置粗馏塔和预浓缩塔的工艺设计

化工与生物技术学院课程设计年产3.75万吨酒精生产装置粗馏塔和预浓缩塔的工艺设计学生学号：学生姓名：专业班级：指导教师：职称：起止日期：吉林化工学院JilinInstituteofChemicalTechnology吉林化工学院课程设计说明书I摘要在本次专业课程设计中,本人进行了这次题为年产3.75万吨优质食用玉米酒精生产装置粗馏塔和预浓缩塔的工艺设计。本设计选用吉林玉米作为生产原料，厂址选在吉林市。原料经清筛除杂、干燥、粉碎、液糖化、发酵、精馏得到优质食用酒精，废水、废渣经DDGS工艺合理回收利用。粉碎工段采用锤式干法粉碎工艺。糖液化工段选用分段加酶的中温双酶法蒸煮工艺。发酵工段以湖北宜昌安琪酵母有限公司生产的活性干酵母为生产菌株，采用大罐露天连续浓醪发酵生产工艺。而精馏工段则选用目前比较先进节能的六塔差压精馏技术。最后采用DDGS技术对酒糟进行处理，利用微生物对废水进行处理，使之达到排放标准。从工艺计算以及技术经济评价来看，本设计各项内容都比较合理，有其可行性和可用性。关键词：酒精；粗馏塔；预浓缩塔；工艺吉林化工学院课程设计说明书IIAbstractInthedesignofthiscourse,Ientitledthistimeproductionof30000tonnesofcrudedistillationofhighqualitycornalcoholproductionplantandprocessdesignofconcentrationcolumn.ThisdesignchoiceofmaizeinJilinprovinceasproductionrawmaterials,siteselectioninJilincity.Rawmaterialsbytheballastremoval,drying,grinding,liquidqualityalcoholsaccharification,fermentation,distillation,wastewaterandrecoveryandutilizationofwasteresidueofDDGSrational.Hammerdrygrindingprocessofcrushingworkshopsection.Subparagraphsugarselectionsectionofliquefactiontemperatureoftheenzymeenzymaticcookingtechnology.SectionofYichang,HubeiAngelyeastproducedbythefermentationforproductionofactivedryyeaststrains,usinglargetanksopencontinuousproductionprocessofhigh-concentrationmashfermentation.Distillationsectionoftheselectioniscurrentlymoreadvancedenergy-efficientsix-Towerrectificationtechnologyofdifferentialpressure.FinalDDGStechniqueontreatmentofDistiller'sgrains,onwastewatertreatmentusingmicroorganisms,tomeetemissionstandards.Calculatedfromtheprocess,aswellastechnicalandeconomicassessment,thecontentsofthisdesignaremorereasonable,itsfeasibilityandavailability.Keywords:alcohol;crudedistillation;concentration;technology吉林化工学院课程设计说明书-1-目录摘要.......................................................................................................................................IAbstract........................................................................................................................................II目录..............................................................................................................................................1第1篇设计说明书....................................................................................................................3第1章绪论.........................................................................................................................31.1设计项目的意义.....................................................................................................31.2设计依据..................................................................................................................31.3指导思想...............................................................................................................31.4主要技术参数.......................................................................................................4第2章文献综述.................................................................................................................52.1精馏的技术改造.................................................................................................-6-2.2酒精精馏的特性.................................................................................................-7-第3章工艺论证............................................................................................................-8-3.1生产方法论证.....................................................................................................-8-3.2工艺流程的选择.................................................................................................-8-3.3厂址的选择........................................................................................................-9-第4章工艺设计..........................................................................................................-10-4.1工艺流程说明...................................................................................................-10-4.2岗位管理的范围及任务...................................................................................-10-4.3精馏工段生产原理及工艺流程.......................................................................-11-4.4原料、产品规格及公用工程条件...................................................................-13-4.5开车准备...........................................................................................................-14-4.6正常开车程序...................................................................................................-15-4.7正常操作及生产工艺控制表...........................................................................-15-4.8停车程序...........................................................................................................-19-4.9安全操作要点...................................................................................................-20-4.10异常情况及处理方法一览表.........................................................................-20-4.11设备一览表......................................................................................................-22-第2篇工艺计算.........................................................................................错误!未定义书