I9500吨/年聚氯乙烯悬浮聚合工艺设计摘要本设计为年产9500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IIAbstractThedesignforthe9,500tonsofPVCpolymerizationprocessdesignthroughoutthedesignfileiscomposedbytwopartsofthedesignspecificationanddesigndrawings.Inthedesignmanual,abriefintroductionofPVCproductionstatus,developmenttrends,performance,andthemainpurposeshighlightedbysuspensionpolymerizationasthepolymerizationprocessproductionmethods.Inthedesignprocess,accordingtotherequirementsofthedesigntaskbooktoconductamoredetailedmaterialbalanceandheatbalanceandthethepolymerizercalculationprocesscalculationandselectionofequipment,asimpletechno-economicevaluationoftheentiredevice.Drawingofthedesigndrawings,designdrawingsincludingprocessflowdiagramofthepolymerizationreactorassemblydrawing.Keywords:PVC,suspensionpolymerizationprocess,dry,monomer,productionprocessIII目录前言.................................................1第1章概述............................................21.1聚氯乙烯简介.....................................21.1.1聚氯乙烯的理化性能.........................21.1.2聚氯乙烯树脂的用途..........................31.2聚氯乙烯配方.....................................4第2章聚氯乙烯生产工艺流程设计........................52.1聚氯乙烯生产工艺流程简述........................52.2聚氯乙烯生产工艺流程操作步骤....................52.2.1聚合单元...................................52.2.2VC回收工序.................................62.2.3汽提、干燥工序.............................6第3章物料衡算........................................83.1车间物料衡算....................................83.1.1主要工艺参数................................83.1.2生产任务的计算.............................83.1.3投入单体的计算..............................93.2聚合釜的物料衡算...............................103.2.2聚合釜的生产计算..........................10第4章热量衡算.......................................124.1聚合釜热量衡算.................................124.1.1参数设定..................................124.1.2混合热和搅拌热的考虑......................134.2回流冷凝器热负荷的考虑.........................134.3物料带入聚合釜的热量...........................134.4聚合反应放出的热量.............................144.5物料带出聚合釜的热量...........................144.6反应过程需要加入的热量.........................14IV4.7加热水的用量:..................................144.8冷却水的用量：.................................144.9传热面积........................................15第5章设备工艺设计...................................165.1聚合釜的设计...................................165.1.1生产周期或生产批数........................165.1.2根据年产量确定每批进料量..................165.1.3选择反应器装料系数........................165.1.4计算反应器体积............................165.1.5聚合釜壁厚的计算..........................175.2汽提塔.........................................175.3混料槽.........................................175.4离心...
