journal1 ›› 2015, Vol. 48 ›› Issue (8): 8-12.DOI: 10.11930/j.issn.10.11930.2015.8.8

• Column of Flue Gas Dust Removal • Previous Articles     Next Articles

Experimental Study on the Effects of Agglomerator and New ESP Technologies on Particulate Removal Efficiency

WANG Dongge123, ZHU Fahua23, YI Yuping2, LIU Zhi4, LI Xiaoming123, MENG Lingyuan13   

  1. 1.Nanjing University of Information Science and Technology, Nanjing 210044, China;#br# 2. State Power Environmental Protection Research Institute, Nanjing 210031, China;#br# 3. Collaborative Innovation Center of Atmospheric Environment and Equipment Technology, Nanjing 210044, China;#br# 4. Jiangsu CTIEC Environmental Protection Research Institute Co., Ltd., Yancheng 224051, China
  • Received:2015-05-13 Online:2015-11-25 Published:2015-08-25
  • Supported by:
    National Energy Administration (No. GNKJ[2013]235).

Abstract: In this paper, the effects of agglomerator and some new ESP technologies(such as mobile electrode duster and high-frequency power supply) on particulate emissions are studied for a 135-MW coal-fired power generating unit. The results show that with the agglomerator being turned on, the concentrations of the total particulate matter and PM2.5 are reduced by 23.93%~40.16% and 39.54%~55.21%, respectively, while with the mobile electrode in operation, the concentrations of the total particulate matter and PM2.5 are decreased by 25.46%~56.59% and 11.68%~33.18%, respectively. Moreover, with the high-frequency power supply being turned on, the concentrations of the total particulate matter and PM2.5 are decreased by 12.81%~21.27% and 22.11%~43.11%, respectively. This experimental study indicates that the agglomerator and the new technologies can significantly improve the collection efficiency of the electrostatic precipitator, especially for the emission reduction of the PM2.5 particles. It is certain that they will play an important role in the innovation and upgrading of dust removal devices.

Key words: coal-fired power generating unit, ESP, agglomerator, moving pole, high-frequency power supply, particulate matter, efficiency improvement

CLC Number: