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1、摘要杭钢地处长江中下游，属亚热带湿润季风气候，温暖多雨，海洋性气候比较明显,相对湿度较高、含湿量大，而鼓风含湿量对高炉冶炼的影响较大，高炉风机增上脱湿鼓风装置，必将降低焦比、多喷煤、顺行增产、降低鼓风机功耗等方面产生巨大的经济效益。3本文主要对杭钢750m高炉脱湿鼓风首先对高炉脱湿鼓风系统的重要组成部分，即脱湿器、冷水机、冷却塔分别进行了设计计算，对各机组性能进行了分析，并选取了优秀厂家产品，并对其性能做了校核。其次，文在本章中针对杭钢现有的风机特点及其地理位置，进行了分析，并作了总体设计，结合生产实际，对施工过程作了简要安排。关键字脱湿鼓风冷冻机脱湿器冷却塔高炉IIABSTRACT
2、HZSTEELislocatedinthemiddleandlowerreachesofChangjiangRiver,belongtoasubtropical,moistandmonsoonclimate,it’swarmandrainy,theoceanicclimateisalittlebitapparent,andrelativehumidityisalittlebithigh,moisturecontentisbig,butthemoisturecontentofblasthasalittlebitinfluencetosmeltingblastfurnace,thebla
3、stblowerincreasethedehumidifyingandblastdevice,anditwillproducehugeeconomicbenefits,suchasreducingthecokerate,increasingcoalinjection,makingsmoothmovementofincreaseproduction,andreducingthepowerdissipationofblower.3Thispaperfocusesonthedehumidifyingandblastof750mblastfurnaceinHZSTEEL.Firstlyitc
4、arriesonthedesigncalculationtotheimportantcomponentofdehumidifyingandblastsystem,suchasdehumidifier,cooling-watermachine,andcoolingtower,eachmachineofperformanceisanalyzed,theoutstandingmanufacturerisselected,andcheckforitsperformance.Secondly,thispapermakesanalysisandtheoveralldesignaccordingt
5、oHZSTEELexistingfancharacteristicsandgeographicallocation;italsomakesabriefarrangementfortheconstructionprocesscombiningwiththeproductionpractice.Keywords:dehumidifyingandblast,cooling-watermachine,dehumidifier,coolingtower,blastfurnaceIII目录第一章绪论„„„„„„„„„„„„„„„„„„„„„„„„„„„„„„„„„11.1炼铁的发展史„„„„„„
6、„„„„„„„„„„„„„„„„„„„„„„„„„11.2我国炼铁工业发展历程及现状„„„„„„„„„„„„„„„„„„„„„„„„21.3现代高炉炼铁工艺流程„„„„„„„„„„„„„„„„„„„„„„„„„„„61.4高炉强化冶炼的内容和措施„„„„„„„„„„„„„„„„„„„„„„„„„81.5脱湿鼓风„„„„„„„„„„„„„„„„„„„„„„„„„„„„„„„„101.5.1脱湿鼓风的发展历史„„„„„„„„„„„„„„„„„„„„„„„„„„101.5.2鼓风湿度对高炉的影响„„„„„„„„„„„„„„„„„„„„„„„„„1131.5.3制约杭钢750m高炉鼓风质量的
7、因数„„„„„„„„„„„„„„„„„„„121.6本课题主要的研究内容„„„„„„„„„„„„„„„„„„„„„„„„„„14本章小结„„„„„„„„„„„„„„„„„„„„„„„„„„„„„„„„„„14第二章脱湿鼓风的原理及特性分析„„„„„„„„„„„„„„„„„„„„„„152.1各类脱湿鼓风的类型及利弊分析„„„„„„„„„„„„„„„„„„„„„„152.1.1溶液吸收脱湿的原理及利弊分析„„„„„„„„„„„„„„„„„„„„„„162.1
