资源描述:
《生活垃圾焚烧处理中烟气净化系统设计》由会员上传分享,免费在线阅读,更多相关内容在教育资源-天天文库。
1、.生活垃圾焚烧处理中烟气净化系统设计聂思(吉林师范大学环境科学与工程学院2011级1班吉林四平136000)指导老师:赵玲子摘要:生活垃圾焚烧过程中将产生大量有害气体,酸性气体、二恶英,以及大量粉尘,本设计主要是针对生活垃圾焚烧过程中排出的烟气进行除尘净化。工艺流程为:生活垃圾经过前期的破碎等处理后,进入焚烧炉,通过焚烧炉后产生的烟气进入半干式洗涤塔,在半干式洗涤塔中的物理和化学作用去除掉烟气中的酸性气体,再进去袋式除尘器进行除尘,最后剩余气体从烟囱排出。生活垃圾焚烧日益成为生活垃圾处理的主要方式,相对于将
2、生活垃圾填埋,占地面积大,且垃圾渗滤液一旦泄漏将对人体,环境,水资源造成严重的危害。但焚烧垃圾过程中还是会产生大量的有害烟气,因此,本次设计针对生活垃圾焚烧过程中所产生的烟气设计净化系统,解决了垃圾焚烧后产生的后续污染问题。关键词:生活垃圾焚烧厂;烟气;袋式除尘器...Waste Incineration FlueGas Purification SystemDesignNie Si(Class1Grade2011inCollegeofEnvironmentalScienceandEngineering,J
3、ilinNormalUniversity,JilinSiping136000)Directiveteacher:ZhaoLing-zi(TA)Abstract:alargeamountof harmfulgas garbageincinerationprocess,acidgas, dioxin, and alotofdust, thisdesignismainlyfor domesticwasteincinerationfluegasdischargedintheprocessofdustpurifica
4、tion.Theprocessis:thegarbagethroughthecrushing process, intotheburningfurnace, fluegas producedbyburning furnace after enteringthe semidryscrubber, in semidry scrubber in physicalandchemicaleffectsof removing acidgasinfluegas, andthengo intothe dust bagdus
5、tcollector, thelastremaining gas discharge fromthechimney. Has becomethemainwayof livinggarbagedisposal ofgarbageincineration, relativeto landfill, coversanareaoflarge, and oncethelandfillleachate willleak tothehumanbody,theenvironment, water resourcescaus
6、ed seriousharm. Life will notonlysolvethe problem ofwasteincineration processing waste incineration canalsobeusedto produceheat forpowergeneration, reducingthe amountofcoal usedin powersupply. But intheprocessof wasteincineration will produceharmful gas, a
7、largenumberof therefore, thedesignof fluegaspurificationsystem forthe designof garbage...incineration process, subsequent incineration tosolvepollutionproblemsafter.Keywords: solidwasteincineration; fluegas; bagtypedustcollector...目录1绪论11.1引言11.2烟气的产生和组分11
8、.2.2粉尘11.3重金属11.4二恶英等有机物11.5生活垃圾焚烧处理厂流程图22烟气净化工艺选择32.1酸性气体去除工艺的选择32.1.1干法除酸32.1.2半干法除酸32.1.3湿式洗涤塔32.2除尘器的选择42.2.1静电除尘器42.2.2袋式除尘器43主要设计参数、流程及主要设备计算53.1锅炉参数53.2布袋除尘器入口53.3环境条件53.4设计流程图53.5半干式反应塔53.6袋式除尘器的设计计算6