洛阳理工学院课程设计

13000t/年聚氯乙烯悬浮聚合工艺设计

摘 要

本设计是悬浮法生产聚氯乙烯（年产13000吨）的工艺初步设计。该设计包括设计说明书和设计图纸两部分。设计说明书主要包括聚氯乙烯概述、制聚氯乙烯工艺方案的选择论证、在设计过程中，根据设计任务书的要求，进行了较为详细的物料衡算和热量衡算和聚合釜计算，对设备进行了工艺计算和选型，同时对整个装置进行了简单的技术经济评价。设计图纸则包括工艺流程图和聚合反应釜装配图。

关键词：聚氯乙烯，悬浮聚合工艺，干燥， 单体，生产工艺

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洛阳理工学院课程设计

Abstract

This design is the production of PVC suspension method (with an annual output of 13000 tons) preliminary design process. The design includes the design specification and design drawings of two parts.In the design manual, a brief introduction of PVC production status, development trends, performance, and the main purposes highlighted by suspension polymerization as the polymerization process production methods. In the design process, according to the requirements of the design task book to conduct a more detailed material balance and heat balance and the the polymerizer calculation process calculation and selection of equipment, a simple techno-economic evaluation of the entire device . Drawing of the design drawings, design drawings including process flow diagram of the polymerization reactor assembly drawing.

Keywords: PVC ,suspension polymerization process, dry, monomer ,production process

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洛阳理工学院课程设计

前 言 ................................................................................................ 1 第1章 概述 ...................................................................................... 2

1.1PVC概述及PVC发展状况、前景 .......................................... 2 1.2 聚合工艺实践方法 .............................................................. 3

1.2.1本体法聚合生产工艺 .................................................. 3 1.2.2乳液聚合生产工艺 ..................................................... 4 1.2.3悬浮聚合生产工艺 ..................................................... 4 1.3产品原料及说明 .................................................................... 5 1.4聚氯乙烯配方 ....................................................................... 7 第2章 聚氯乙烯生产工艺流程设计 ................................................ 9

2.1 聚氯乙烯生产工艺流程简述 ............................................... 9 2.2 聚氯乙烯生产工艺流程图................................................. 10 第3章 物料衡算 ............................................................................. 12

3.1 车间物料衡算 .................................................................... 12

3.1.1主要工艺参数 ........................................................... 12 3.1.2 生产任务的计算 ...................................................... 12 3.1.3投入单体的计算 ....................................................... 13 3.2 聚合釜的物料衡算 ............................................................. 13

3.2.2 聚合釜的生产计算................................................... 14

第4章 热量衡算 ............................................................................. 15

4.1 聚合釜热量衡算 ................................................................. 15

4.1.1 参数设定 ................................................................. 15

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洛阳理工学院课程设计

4.1.2 混合热和搅拌热的考虑 ........................................... 16 4.2 回流冷凝器热负荷的考虑................................................. 16 4.3 物料带入聚合釜的热量 .................................................... 16 4.4 聚合反应放出的热量 ........................................................ 17 4.5 物料带出聚合釜的热量 .................................................... 17 4.6 反应过程需要加入的热量................................................. 17 4.7 加热水的用量 .................................................................... 17 4.8 冷却水的用量 .................................................................... 17 4.9传热面积 ............................................................................. 18 第 5 章 典型机器设备选型与论证 ............................................ 19

5.1机器设备选型的原则 ......................................................... 19

5.1.1满足工艺要求 .......................................................... 19 5.1.2设备成熟可靠 .......................................................... 19 5.1.3尽量采用国内设备 .................................................. 19 5.2聚合釜................................................................................. 20 5.3 汽提塔 ................................................................................ 22 5.4 混料槽 ................................................................................ 22 5.5 干燥器 ................................................................................ 22 5.6 离心机的选型 .................................................................... 23 参考文献 .......................................................................................... 25

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