聚氯乙烯PVC毕业设计.docVIP

题 目：年产12万吨聚氯乙烯的合成工艺设计 学 院： 化学与材料工程 专 业： 高分子材料与工程 姓 名： 学 号： 10 指导老师： 完成时间： 2014年5月20日 设计说明 关键词： Design specification Polyvinyl chloride (PVC) is the rapid development of synthetic materials at home and abroad in one of the five major thermoplastic synthetic resin, with its superior quality and competitive price, the characteristics of synthetic resin consumption accounted for about 29%, second only to polyethylene (PE), second.It has excellent resistance to chemical corrosion resistance, electrical insulation, smoldering, physical and mechanical properties, chemical resistance, light weight, high strength and easy processing, low cost, etc.The design is an annual output of 120000 tons of polyvinyl chloride (PVC) synthesis process, the production process of polymerization process of polyvinyl chloride for suspension. the volume is 70m3, height is 5000mm, the diameter of the column for 4000mm reactor.In determining the PVC production technology on the basis of material balance, heat balance and the equipment selection.Process design not only improves the product quality and production efficiency, but also make the production process more environmental science. Draw the corresponding drawings, including the process flow diagram, material balance diagram and main equipment figure, etc. KEY WORDS: PVC，Suspension polymerization，Material balance，Heat balance，Polymerizing pot 目 录 设计说明 I Design specification II 1总论 1 1.1概述 1 1.1.1意义与作用 1 1.1.2国内外的现状及发展前景 1 1.1.3产品性质与特点 1 1.1.4聚氯乙烯的主要用途 2 1.1.5产品的生产方法概述 3 1.2厂址选择 3 1.3设计规模及原料与产品规格 5 1.3.1设计规模 5 1.3.2主要原料规格及技术指标 5 1.3.3产品规格 5 2工艺设计与计算 7 2.1工艺原理 7 2.2工艺条件影响因素 7 2.3工艺路线的选择 9 2.3.1工艺路线选择原则 9 2.3.2聚氯乙烯悬浮法具体工艺路线 9 2.3.3工艺流程示意图 10 2.4工艺配方和工艺参数 11 2.4.1工艺配方 11 2.4.2工艺参数 11 2.5物料衡算 12 2.5.1聚合釜 12 2.5.2 混料槽 15 2.5.3汽提塔 16 2.5.4离心机 17 2.5.5 旋风干燥器 18 2.5.6 包装 19 2.6热量衡算 20 2.6.1聚合釜的热量计算 20 2