年产15万吨烧碱车间工艺设计_学位论文.doc

年产15万吨烧碱车间工艺设计 作 者 姓 名 郝秀清 专 业 化学工程与工艺 指导教师姓名 袁芳 专业技术职务 讲师 目 录 摘 要 ·················································1 第一章 氯碱工业的发展··································3 1.1 氯碱工业的历史······································3 1.2 烧碱的性质、用途及其质量标准························3 1.3 溶液电解方法的发展··································5 1.4 氯碱工业的特点及发展趋势····························5 1.5 离子膜··············································7 1.6 离子膜电解技术······································10 1.7 我国离子膜法电解槽的现状····························11 第二章 工艺流程的选择与说明····························11 2.1 原料的选择··········································11 2.2 盐水精制的选择······································12 2.3 电解工艺············································12 2.4 碱液蒸发与浓缩······································13 2.5 固碱工艺············································13 2.6 液氯工段工艺流程简述································13 2.7 氯气干燥的目的与机理································13 2.8 氢气处理············································13 2.9 盐酸工段工序流程简述································14 第三章 工艺计算········································14 3.1电解槽的工艺计算·····································14 3.2洗涤塔内氢气的工艺计算·······························17 3.3钛冷却器内氯气工艺衡算·······························19 3.4硫干燥塔内氯气物料衡算·······························21 第四章 设备设计········································22 4.1离子膜电解槽的设计···································22 4.2钛冷却器的设计·······································24 4.3蒸发塔的设计·········································26 4.4蒸发设备的计算·······································36 第五章 厂房布置·········································42 5.1厂房布置的重要意义···································42 5.2厂房布置的原则及方法·································42 第六章 环境保护·········································44 参考文献················································45 致谢····················································46摘 要 作为一种基本的和重要的化工原料，烧碱在工业生产的各个领域都有着广泛