Utilization of Electrostatic Precipitator as Fly ash Classifier

Fly ash 분급기(分級機)로서 화력발전소(火力發電所) 전기집진기(電氣集塵機)의 활용(利用)

  • 이승헌 (군산대학교 신소재공학과)
  • Received : 2010.03.05
  • Accepted : 2010.03.31
  • Published : 2010.04.30


In most coal fired power plants, fly ashes collected from each of hoppers in the electrostatic precipitator are transported and stored in a silo. However the properties of the fly ashes collected from each of hoppers in electrostatic precipitator varies with the distance of the collection field from the boiler. The more distance hopper gets fly ash with larger specific surface area. Therefore, in electrostatic precipitator the hopper itself is expected to have the effect of classifying fly ashes. This study examines the physical, chemical and mineralogical properties of fly ash, collected from each of hoppers attached to an electrostatic precipitator in the coal fired power plant and looks into the possibility of the electrostatic precipitator being used as a classifier. Also, the study reviewed the possibility of acquiring high quality fly ash.


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