日产5000吨熟料水泥厂新型干法窑尾烧成系统工艺设计

日产5000吨水泥熟料水泥厂新型干法窑尾烧成系统工艺设计I摘要本次设计的任务是5000t/d水泥熟料新型干法生产线烧成系统窑尾工艺设计。预热器主要分为四级预热器和五级旋风预热器两种：其主要区别在于第一级预热器出口废气温度、废气量以个水泥生产线的耗煤量。根据国内新型干法水泥生产的情况，窑尾烟气量可达1.5-1.9Nm3/kg（煤粉燃烧后产生的理论烟气量为0.8-1.2Nm3/kg、0.2-0.4Nm3/kg的漏风、过剩空气、盐类分解、自由水蒸发、高岭土脱水、空气带入含湿量等）。四级预热器窑由于少了一级预热故本次设计选用五级悬浮预热器。器，其漏风量比五级预及整热器窑有所减少，窑尾预热器烟气量也对应减少。四级预热器但同时四级预热器增加了煤耗，增加煤耗量与增加发电量之比远远大于国家公布的火电标准煤耗表明，四级预热器窑的能源利用效率比五级预热器窑低。五级预热器窑投资虽然有所增加，发电量减少；但煤耗量的减少更为明显，其运行时的经济效益和环境效益明显大于四级预热器窑。关键词：烧成系统，预热器，分解炉，物料平衡安徽建筑工业学院本科毕业设计IIABSTRACTThisdesignisthetaskof5000t/dNSPcementclinkerproductionlinefiringsystempreheaterprocessdesign.Preheatermainlydividedintolevel4preheaterandcategoryfivecyclonepreheatertwokinds:themaindifferencebetweenthefirstlevelpreheaterexportwastegas,wastegastemperaturebyaquantityofcementproductionlineHaoMeiLiang.AccordingtodomesticNSPcementproduction,smokegasinletupto1.5-1.9Nm3/kg(pulverizedcoalburningafterthetheoryofgasproducedsmokefor0.81.2Nm3/kg,0.20.4Nm3/kgairleakage,theexcessair,saltdecomposition,freewaterevaporation,kaolindehydration,airintothemoisturecontent,etc.).Level4preheaterkilnduetothelevel1preheatsothelessdesignchooseacategoryfivesuspensionpreheater.Implement,theleakageairvolumegetsthanacategoryfiveandtheheatexchangerkilninletpreheaterdecreased,butalsocorrespondingtoreducegassmoke.Level4preheaterbutatthesametimelevel4preheaterincreasedcoalconsumption,increasetheamountandincreasethecapacityofthecoalconsumptionthanfargreaterthannationalpublicationofthethermalpowerstandardthatlevel4preheatercoalkilnenergyefficiencythancategoryfivepreheaterkilnlow.Acategoryfivepreheaterkilninvestmentincreasedcapacity,althoughreduce;Buttheamountofcoalconsumptionreduceismoreapparent,itsruntimeeconomicbenefitsandenvironmentalbenefitssignificantlygreaterthanlevel4preheaterkiln.KEYWORDS:FiringsystemPreheaterNSPMaterialbalance日产5000吨水泥熟料水泥厂新型干法窑尾烧成系统工艺设计III目录摘要................................................................IABSTRACT...........................................................II第一章绪论.....................................................-1-1.1设计任务及其依据，论述所生产产品的意义和价值............-1-1.1.1设计任务：.........................................-1-1.1.2生产产品的种类及意义和价值.........................-1-1.2窑的选型及标定..........................................-3-1.2.1窑的标定的意义.....................................-3-1.2.2窑的选型计算.......................................-4-1.2.3回转窑产量的标定...................................-4-1.3结论....................................................-5-1.3.1窑的年利用率.......................................-5-1.3.2烧成系统的生产能力：...............................-5-1.3.3确定窑的台数：.....................................-6-第二章配料计算.................................................-7-2.1配料及物料平衡计算......................................-7-2.2假设原料配比............................................-7-2.2.1计算白生料化学成分.................................-8-2.2.2计算灼烧基生料化学成分.............................-8-2.2.3计算熟料标准煤耗...................................-8-2.2.4计算煤灰掺入量.....................................-8-2.2.5计算熟料化学成分（%）..............................-9-2.2.6计算率值...........................................-9-第三章总平面布置和工艺流程....................................-10-3.1水泥总平面设计的步骤...................................-10-3.1.1初步设计..........................................-10-3.1.2施工图设计........................................-11-3.2工艺设计的基本原则和程序...............................-11-安徽建筑工业学院本科毕业设计IV3.2.1工艺设计的基本原则................................-11-3.2.2工艺流程简介......................................-11-第四章物料平衡表..............................................-13-4.1计算熟料料耗...........................................-13-4.1.1理论料耗..........................................-13-4.1.2实际料耗..........................................-13-4.1.3计算实物煤耗......................................-13-4.1.4计算干基实际消耗定额..............................-13-4.1.5计算湿基实际消耗定额..............................-13-4.2计算湿物料配合比.......................................-14-4.2.1编制物料平衡表....................................-14-第五章主机设备选型计算........................................-15-5.1破碎设备...............................................-15-5.2窑外分解窑选型.........................................-16-5.3煤磨选型...............................................-16-5.4熟料烧成窑尾系统及其设备选型..........................-18-5.4.1预热器飞灰量......................................-19-5.4.2出收尘器飞灰量....................................-19-5.4.3收尘器收下灰量....................................-19-5.4.4实际料耗..........................................-19-5.4.5预热器喂料量......................................-19-5.5气体量计算.............................................-19-5.5.1窑尾排除废气量....................................-20-5.5.2三次风管抽风量....................................-20-5.5.3分解炉内废气量....................................-21-5.6预热器废气量计算......................................-21-5.6.1五级预热器废气量..................................-21-5.6.2四级预热器废气量..................................-21-5.6.3三级预热器废气量..................................-21-日产5000吨水泥熟料水泥厂新型干法窑尾烧成系统工艺设计V5.6.4二级预热器废气量..................................-22-5.6.5一级预热器废气量....................