芄薁螃膇莆莄虿膆肆蕿薅膅芈2021届 本科毕业设计论文资料题 目 名 称：年产10万吨隔膜烧碱工艺 设计电解车间 学 院部：包装与材料工程学院 专 业： 应用化学 学 生 姓 名： 邵春林 班 级： 应化092 学号09404600231 指导教师姓名： 陶炳 职称 高级工程师 最终评定成绩： 湖南工业大学教务处 2021届本科毕业设计论文资料第一局部 毕业论文2021届本科毕业设计论文题 目 名 称： 年产10万吨 隔膜烧 碱工艺设计电解车间 学 院部： 包装与材料工程学院 专 业： 应用化学 学 生 姓 名： 邵春林 班 级： 应化092 学号09404600231 指导教师姓名： 陶炳 职称 高级工程师 最终评定成绩： 2021年 6 月摘 要烧碱，作为一种根本的化工原料，在工业生产的很多领域都有着广泛的用途。过程包括盐水精制、电解和产品精制等工序，其中主要工序是电解工业上采用隔膜电解法、水银电解法和离子膜电解法离子膜法工艺是烧碱生产的开展方向，但由于我国离子膜法烧碱“使用超前、研发滞后的特点非常明显，国内没有掌握离子膜法烧碱的核心要素离子膜。目前我国离子膜法烧碱装置所用离子树脂交换膜全部依赖进口，1万t/a离子膜法装置需100m2计，目前我国大约需56000m2离子树脂交换膜，仅购膜费用折合人民币为3.4亿元，高额的购膜费用增加了离子膜法烧碱的生产本钱，生产1t烧碱增加100元。与兴旺国家相比，我国离子膜法生产工艺存在连续运行时间短、能耗偏高的问题，鉴于此，根据我国烧碱消费水平和氯碱生产装置的现状，金属阳极隔膜电解槽与离子膜电解槽将较长时间在我国共存。尽管离子膜法制碱技术开展迅猛,但隔膜法制碱技术要退出历史舞台还需较长的时间。隔膜电解法制碱的最大优点是装置投资少、建设期短、见效快,管理相对容易,技术成熟;设备均可采用国产设备；在相同的产能条件下,具有设备数量少、投资少、见效快的优势。隔膜电解制碱技术生产设备容易制作，材料便于取得，在电源比拟丰富或电价比拟低廉，对于烧碱含盐量的要求又不很苛刻的地区，特别是有地下盐水或附近有联合发电与供汽设施的地区，仍在普遍采用。因此，进行隔膜烧碱厂的设计就很有必要了。本设计采用了新的电解制碱技术隔膜电解制碱技术，在此设计中，对隔膜、电解槽进行选择，烧碱生产包括以下工序：盐水精制、蒸发碱液、固碱生产，氯气枯燥。本次设计是针对该工艺的核心局部电解工艺进行设计思考。本设计说明书包括：烧碱生产中电解原理与生产工艺流程的论证，物料与热量衡算，主体设备的设计与选型，以及车间人员布置原那么，防腐平安等内容。通过设计我们完成了10万吨级别的烧碱的产生工艺设计。关键词：烧碱，隔膜，电解ABSTRACTCaustic soda, as a kind of basic chemical raw materials, in many areas of industrial production has a wide range of USES. Including brine refining process, products refined and electrolytic process, the main process is the electrolytic. Industry by diaphragm electrolysis method, mercury electrolysis and ionic membrane electrolysis method. Ion membrane process is the development direction of caustic soda production, but due to ionic membrane caustic soda in China use advanced, research and development lags behind is very obvious, the characteristics of domestic didnt grasp the core elements of ionic membrane caustic soda - ionic membrane. At present, the ion exchange resin membrane used in ionic membrane caustic soda unit all rely on imports, 10000 t/a ionic membrane device needs to be 100 m2, at present our country about 56000 m2 ion exchange resin membrane, only for film fee is 340 million yuan, high purchase film fees increase the cost of ionic membrane caustic soda production, caustic soda production 1 t an increase of 100 yuan. Compared with the developed countries, the production method of ionic membrane law continuous operation time is short, the problem of high energy consumption, in view of this, according to the caustic soda consumption level and the current situation of chlor-alkali production plant, metal anode diaphragm electrolyser and ionic membrane electrolyser will co-exist in China for a long time. Although alkali ionic membrane law technology developing rapidly, but the diaphragm alkali technology legal system still need longer time to quit the historical stage. Diaphragm electrolysis alkali legal system the biggest advantage is less investment, short construction period, quick effect, management is relatively easy, mature technology; Equipment all can use domestic equipment; Under the condition of the same capacity, with less equipment, less investment, quick effect of advantage. Diaphragm electrolysis alkali production technology, production equipment is easy to make, material is easy to obtain, is rich in power or electricity price is cheap, but not very strict to the requirement of caustic soda salinity area, especially near the underground brine or have joint power and steam supply facilities area, are still in common use. Therefore, for the design of diaphragm caustic soda plant is very necessary. This design adopted a new electrolytic alkali production technology, the