【作者】 贾吉林；

【导师】 赵毅；

【作者基本信息】 华北电力大学（河北） ， 环境工程， 2008， 硕士

【摘要】 火电厂烟气经烟气循环流化床脱硫后,进入除尘器的烟气性质和粉尘特性发生了很大变化,为了达到排放标准,脱硫系统中的除尘器必须是高效除尘器。电除尘器和布袋除尘器均是高效除尘器,随着粉尘排放标准由200 mg/Nm3提高到目前的50 mg/Nm3,采用哪种除尘方式更为经济和可靠,是关系到工程是否符合法规,系统能否经济可靠运行的关键。本论文对脱硫后烟气采用何种除尘方式进行了实验研究和技术经济分析,研究结果表明:布袋除尘器和电除尘器均能满足排放要求,但考虑到中国的实际情况,电除尘器更具有技术经济和运行经验方面的优势。更多还原

【Abstract】 The property of flue gas and fly ash entering the dust catcher was changed very much after desulfurization by flue gas circulating fluidized bed (CFB-FGD). In order to reach the effluent standard, the dust catcher must be a high-efficiency one. Along with the strict of dust emission standard rise from 200 mg/Nm3 to 50 mg/Nm3 by the country. Which type of dust removal was adopt after dry flue gas desulphurization was the key of whether the project accord with the laws and operation reliably and economy. The flue gas after dry method desulphurization has certain particularity. Experimental study, technical and economic analysis was conducted in combination with the specificity of flue gas after dry flue gas desulfurization. The study results shown that High-efficiency electrostatic precipitator or fabric filter adopting both can satisfied the emission standard. Fabric filer was more superior than electrostatic precipitator at economic aspect when considering the Chinese instances.更多还原