移动极板技术在火电厂除尘器改造中的应用

Application of movable pole plate in reformation of electrostatic precipitator of thermal power plant

为了提高电除尘器效率,保证烟尘达标排放,对电除尘器进行提效改造。阐述了移动极板电除尘器的工作原理及特点,介绍了某电厂#10机组移动极板电除尘器的改造内容。改造后脱硫塔出口粉尘排放质量浓度为24.66 mg/m3,修正至6%氧量后排放质量浓度为23.86 mg/m3,低于30 mg/m3的标准要求,达到了预期的改造效果。

In order to improve efficiency of the electrostatic precipitator and to ensure flue gas dust emission to meet the standard requirement,the electrostatic precipitator was reformed. The working principle and the features of the electrostatic precipitator with movable pole plate were expounded. The reformation content of the electrostatic precipitator with movable pole plate of unit No. 10 in a power plant was introduced. After the reformation,the dust emission mass concentration in outlet of the desulphurization tower is 24. 66 mg / m3,amended to 6% oxygen,the emission mass concentration is 23. 86 mg / m3,which is lower than 30 mg / m3,the standard upper limit. The expectant target of the reformation was realized.