Study on the Change Characteristics of Dust Specific Resistivity and Electrostatic Precipitation Efficiency

2017 3rd International Conference on Environmental Science and Material Application

生态环境科学;材料科学

Li, Mengqi^1 ; Ren, Jianxing^1

College of Energy and Mechanical, Shanghai University of Electric Power, No. 1186 Hejian Road, Yangpu District, Shanghai, China^1

关键词: Adverse effect;    Dust removal efficiency;    Dust resistance;    Electrostatic precipitation;    Flue gas humidity;    Flue gas temperatures;    Specific resistances;    Specific resistivities;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/108/5/052115/pdf
DOI  :  10.1088/1755-1315/108/5/052115

来源: IOP

【 摘 要 】

Specific resistance is an important factor affecting the performance of ESP. For the dust resistance than the impact of electrostatic dust removal mechanism, the relationship between dust specific resistance and electrostatic dust removal efficiency, high dust specific resistance and low dust specific resistance in the electrostatic dust produced by the adverse effects. The method of controlling the specific resistance of dust is proposed, which reduces the specific resistance of high specific resistance dust by adjusting the flue gas humidity, changing the flue gas temperature and flue gas quenching. The surface modification technology is used to improve the low specific resistance dust. By controlling the dust specific resistance to 104 to 1010 Ω • cm, the electrostatic precipitator is kept at a high dust removal efficiency.