化工类毕业论文聚丙烯工段设计.doc

吉林化工学院毕业论文（设计） PAGE 吉林化工学院 毕业论文（设计） 题 目： 聚丙烯工段设计 学生姓名： 专 业： 化学工程与工艺 指导教师： — — PAGE II — PAGE \* MERGEFORMAT PAGE \* MERGEFORMAT 1 聚丙烯工段设计 化学工程与工艺 学生 指导老师 【摘要】本设计是年产8千吨的聚丙烯工段设计，设计中按照生产负荷和设计规范，对聚丙烯生产的工艺流程进行了合理的设计和适当的调整；对反应釜、闪蒸釜生产流程的主要设备，进行了工艺尺寸的设计计算，特别对结构较复杂的反应釜器内的搅拌装置、指形撤热管以及夹套也进行了工艺尺寸的计算；选择旋风分离器进行工艺尺寸的设计计算，并对冷水泵进行了选型。考虑到设备加工制造、安装、安全等多方面的因素，并依据任务所给的量，采用三个反应釜并联和两个闪蒸釜并联的工艺过程，并进行了相应的物料衡算和热量衡算。 关键词：聚丙烯 聚合 闪蒸去活 丙烯 Abstract This is the processes design of the polypropylene manufacture device and technology whose annual production is 8000 tons. In accordance with design specifications and production process load, the design carries on a reasonable design and adjustment to the production processes of polypropylene; it carries on the design calculation to the size of the main equipments polymerizers and flash and removing activity kettles, especially to the size of the stirrer of the polymerizer, finger-type removing heat pipe and the jacket, which all belong to the complex polymerizer; it also carries on the design calculation to the size of the cyclone which is choosed from the refine department, the cool-water pump has also been selected here. According to the making, installation and safe of devices, and the sale of the task, adopt three polymerizers paralleled, two flash and removing activity kettles paralleled to produce polypropylene, and the materiel balance and heat balance have been done here. Key words: polypropylene; polymerization; flash and removing activity; propylene — — PAGE 38 — 目录 摘要 PAGEREF _Toc11275 I Abstract PAGEREF _Toc31680 II 目录 PAGEREF _Toc1880 1 TOC \o 1-3 \h \z \u HYPERLINK \l _Toc304545824 第一章 液体本体法工艺技术说明 PAGEREF _Toc304545824 \h 1 HYPERLINK \l _Toc304545825 1.1工艺流程 PAGEREF _Toc304545825 \h