悬浮法生产聚氯乙烯流程设计

洛阳理工学院课程设计

3000吨/年聚氯乙烯悬浮聚合工艺设计

摘 要

本设计为年产3000吨聚氯乙烯聚合工艺设计，整个设计文件由设计说明书和设计图纸两部分组成。在设计说明书中，简单介绍了聚氯乙烯的生产现状、发展趋势、性能和主要用途，着重介绍以悬浮聚合法作为聚合的工艺生产方法。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。绘制了相应的设计图纸，设计图纸包括工艺流程图、聚合釜装配图。

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

The design for the 3,000 tons of PVC polymerization process design throughout the design file is composed by two parts of the design specification and design drawings. 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

目 录

前 言 ................................................................................................ 1 第1章 产品及原料说明 ................................................................... 2

1.1 产品性质及质量标准 ........................................................... 2

1.1.1 名称及其结构 ............................................................. 2 1.1.2 产品性能 ..................................................................... 2 1.1.3产品质量标准 .............................................................. 3 1.2 单体氯乙烯（VCM）的性质 ............................................... 5 1.3聚氯乙烯配方 ........................................................................ 6 第2章 聚氯乙烯生产工艺流程设计 ................................................ 7

2.1 聚氯乙烯生产工艺流程简述 ................................................ 7 2.2 聚氯乙烯生产工艺流程操作步骤 ........................................ 7

2.2.1 聚合单元 ..................................................................... 7 2.2.2 汽提、干燥工序 ......................................................... 8 2.2.3 VC回收工序 ................................................................ 8

第3章 物料衡算 ............................................................................. 10

3.1 车间物料衡算 ..................................................................... 10

3.1.1主要工艺参数 ............................................................ 10 3.1.2 生产任务的计算 ....................................................... 10 3.1.3投入单体的计算 ........................................................ 11 3.2 聚合釜的物料衡算 ............................................................. 12

3.2.2 聚合釜的生产计算 ................................................... 12

第4章 热量衡算 ............................................................................. 14

4.1 聚合釜热量衡算 ................................................................. 14

4.1.1 参数设定 ................................................................... 14 4.1.2 混合热和搅拌热的考虑 ............................................ 15 4.2 回流冷凝器热负荷的考虑 ................................................. 15 4.3 物料带入聚合釜的热量 ..................................................... 15 4.4 聚合反应放出的热量 ......................................................... 16

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洛阳理工学院课程设计

4.5 物料带出聚合釜的热量 ..................................................... 16 4.6 反应过程需要加入的热量 ................................................. 16 4.7 加热水的用量: .................................................................... 16 4.8 冷却水的用量： ................................................................. 16 4.9传热面积 .............................................................................. 17 第5章 设备工艺设计 ..................................................................... 19

5.1 聚合釜的设计 ..................................................................... 19

5.1.1 生产周期或生产批数 ............................................... 19 5.1.2 根据年产量确定每批进料量 .................................... 19 5.1.3 选择反应器装料系数 ............................................... 19 5.1.4 计算反应器体积 ....................................................... 19 5.1.5 聚合釜壁厚的计算 ................................................... 20 5.2 汽提塔 ................................................................................ 20 5.3 混料槽 ................................................................................ 20 5.4 离心机 ................................................................................ 21 5.5 干燥器 ................................................................................ 21 参考文献 .......................................................................................... 22

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