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武汉工程大学邮电与信息工程学院毕业设计（论文）说明书论文题目：年产13万吨硫酸转化工艺设计学号：学生姓名：专业班级：指导教师：总评成绩：2015年5月31日武汉工程大学邮电与信息工程学院课程设计说明书II目录摘要......................................................................................................................................IIIAbstract....................................................................................................................................IV第一章文献综述....................................................................................................................11.1硫酸介绍......................................................................................................................11.2硫酸的生产方法..........................................................................................................61.3硫铁矿制酸工艺..........................................................................................................71.4方案的选择..................................................................................................................91.5本次设计的目的及意义..............................................................................................9第二章转化工序物料衡算与热量衡算................................................................................102.1产品规模和规格.......................................................................................................102.2确定各断进口温度及转化率....................................................................................102.3转化工序物料衡算....................................................................................................152.4转化器各段的热量衡算............................................................................................23第三章设备选型....................................................................................................................333.1换热器计算................................................................................................................333.2转化器计算................................................................................................................423.3其他设备的选择........................................................................................................433.4设备选型一览表........................................................................................................44第四章环境保护与治理建议................................................................................................464.1三废主要来源...........................................................................................................464.2三废处理方案...........................................................................................................46设计小结..................................................................................................................................48致谢..........................................................................................................................................49参考文献..................................................................................................................................50附录..........................................................................................................................................51武汉工程大学邮电与信息工程学院课程设计说明书III摘要硫酸作为一种基本的无机化工产品，在国民经济的很多部门如化工、轻工、冶金、化肥等领域都有着广泛的用途。其主要生产过程包括以下工序：硫铁矿的焙烧、炉气的净化、SO2的转化、SO3的吸收和尾气的处理。本设计是年产13万吨H2SO4转化系统的工艺设计，主要负责硫酸工艺中SO2到SO3的转换过程，转换工艺流程是通过一转一吸收完成的，涉及4台换热器，主要以高温生成气来预热低温反应气，达到热量的有效利用，最大限度的降低能量损失，做到工业生产的低碳化和环保化，以经济、节能、高效、可持续发展为目标来进行设计。本设计的计算部分主要分两块：物料衡算和热量衡算。本次工艺设计的进气体积百分数分别为：SO2=9.0%，N2=80.8%。第一、第二、第三、第四转化工段的进口、出口温度依次设计为380℃→560℃，480℃→510℃，455℃→470℃，390℃→400℃。通过物料衡算与热量衡算，对出口温度进行核算，核算的四个转化工段的出口温度依次为：562.07℃、502.37℃、492.79℃、399.01.℃，与设计温度吻合，说明本设计是合理可行的。本设计说明书的编制包括：硫酸生产原理与生产工艺流程的论证、相关物料衡算与热量衡算、主体设备的设计与选型、转化工段的工艺流程图等内容。关键词：硫酸；设计；两转两吸；热量衡算；物料衡算武汉工程大学邮电与信息工程学院课程设计说明书IVAbstractAsabasicinorganicchemicalproduct,sulfuricacidhasextensiveapplicationsinmanyfieldsofdomesticeconomysuchaschemicalengineering,lightindustry,metallurgyandfertilizeretc.Themainproductionprocessconsistsofthecombustionofsulfurore,theoxidationofSO2，theabsorptionofSO2andthetreatmentofexhaustgas.Thisdesignis150000tonsofsulfuricacidpearyearintosystemdesignprocess,ismainlyresponsibleforthesulfuricacidprocessof2SOto3SOconversionprocess,Conversionprocesscanbecompletedby1conversionandtoabsorptionof1,involving4heatexchangers,mainlyinthehightemperaturegasisgeneratedinresponsetolowtemperaturegaspreheating,effectivelyusetoheat,tomaximizethereductionofenergylosses,toachieveindustrialproductionoflowcarbonandenvironmentalprotection,energysaving,highefficiency,economy,sustainabledevelopmentobjectivetodesign.Therearethreemainpartofthecalculation:thematerialbalance,heatbalanceandheattransferareacalculation.Thefirst,second,third,fourthimportandexportofthetransformingsection,isdesignedtoatemperatureof380℃to560℃,480℃to510℃,455℃to470℃,390℃to400℃inturn.Bymaterialbalanceandheatbalance,calculatingtheoutlettemperature,thecalculationoffourorderofconversionandoutlettemperatureis:562.07℃、502.37℃、492.79℃、to399.01℃,inaccordancewiththedesigntemperature,whichmeans