廊坊市某造纸厂燃煤锅炉烟气除尘脱硫系统设计DesignofFlueGasDedustingandDesulfurizationSystemforCoal-firedBoilerinaPaperMillinLangfangCity摘要本设计的题目是廊坊市某造纸厂燃煤锅炉烟气除尘脱硫系统设计。设计的主要方面包括脱硫塔的设计选型、脱硫工艺的设计选型，除尘器的设计选型，脱硫管道的设计计算和经济预算等。设计中采用气体吸收理论，传质理论从物理和化学基本原理研究了吸收过程，帮助了解吸收过程的机理和概念及相关的计算。经过综合比较湿式石灰石法、双碱法、湿式氧化镁法后选用湿式石灰石-石膏法脱硫工艺，除尘装置则采用静电除尘器，所选型号为DBW（1）-10型卧式板极静电除尘器。所选用塔型为喷淋塔，塔高7.21米。烟囱高度为134米进口直径为4.56米，出口直径为0.8米。烟气处理量为19953.248m3/h，管道系统总压力损失为2286.78Pa，风压2600.42Pa，根据风量和风压选择引风机型号G4-73-11锅炉离心引风机9D型。关键词：烟气脱硫；设计；喷淋塔；除尘器；管道；SummaryThetitleofthisdesignisthefluegasdustremovalanddesulfurizationsystemdesignofacoal-firedboilerinapapermillinLangfangCity.Themainaspectsofthedesignincludethedesignandselectionofthedesulfurizationtower,thedesignandselectionofthedesulfurizationprocess,thedesignandselectionoftheprecipitator,thedesignandcalculationofthedesulfurizationpipeline,andtheeconomicbudget.Thegasabsorptiontheorywasusedinthedesign.Themasstransfertheorystudiedtheabsorptionprocessfromthebasicprinciplesofphysicsandchemistrytohelpunderstandthemechanism,conceptandrelatedcalculationsoftheabsorptionprocess.Afteracomprehensivecomparisonofwetlimestone,doublealkali,andwetmagnesiumoxide,awetlimestone-gypsumdesulfurizationprocessisused.Theelectrostaticprecipitatorisusedforthedustremovaldevice.TheselectedmodelisDBW(1)-10horizontalplateelectrostaticdustremoval.Device.Thetowertypeselectedwasaspraytowerwithatowerheightof7.21meters.Theheightofthechimneyis134meterswithaninletdiameterof4.56metersandanoutletdiameterof0.8meters.Thegastreatmentcapacitywas19953.248m3/h,thetotalpressurelossofthepipelinesystemwas2286.78Pa,andthewindpressurewas2600.42Pa.TheinduceddraftfanmodelwasG4-73-11boilercentrifugalinduceddraftfanaccordingtotheairvolumeandthewindpressure.Keywords:fluegasdesulfurization;design;spraytower;dustcollector;目录第一章设计要求与初始数据...............................................11.1设计原始资料：...................................................11.2设计内容和要求...................................................2第二章大气污染与SO2的危................................................42.1大气污染状况.....................................................42.2SO2的危害........................................................42.3烟气脱硫技术.....................................................4第三章除尘装置.........................................................53.1机械式除尘器.....................................................53.2湿式除尘器.......................................................53.3电除尘器.........................................................53.4袋式除尘器.......................................................5第四章烟气脱硫工艺.....................................................74.1湿法脱硫工艺.....................................................74.2半干法脱硫工艺...................................................84.3干法烟气脱硫工艺.................................................9第五章工艺和设备的选择................................................105.1除尘器的选择..................
