Study on Improving the Performance of Electrostatic Precipitator in the Large-scale Semi-dry Flue Gas Desulfurization System
Dedusting unit is necessary in the circulating fluidized bed flue gas desulfurization (CFB-FGD) system, a semi-dry FGD technique which is widely used in air pollution control projects. The dedusting unit is located after the FGD absorber, to collect the desulfurization absorbent for recycle, and also to ensure to satisfy the dust emission standards. Electrostatic precipitator (ESP) is most popularly used in large-scale semi-dry FGD system. But the ESP operating conditions in FGD system are much different from those in general use, with high dust concentration, high humidity and high specific resistivity. According to the ESP operating cases in the semi-dry FGD projects, the effect factors on ESP performance are studied in this paper, such as dust specific resistivity, dust concentration, gas humidity, dust cleaning mode and power supply. The measures to improve the collection performance are also studied in this paper, from the stage of design, installation and operation.
collection performance ESP semi-dry FGD
YU Fusheng HAN Xu LI Xionghao HAI Jiang DU Rongli LI Zaishi
Wuhan Kaidi Electric Power Co.,Ltd,Wuhan,430223,PR China
国际会议
11th International Conference on Electrostatic Precipitation(第11届国际电除尘学术会议)
杭州
英文
527-530
2008-10-15（万方平台首次上网日期，不代表论文的发表时间）