Analysis on reasons of higher mass fraction of combustibles in fly ash of coalfired boiler and countermeasures

Abstract

Abstract:

Abstract:The incoming coal of a power plant is complex and variable, and the quality of the incoming coal is far deviated from the designed value, which causes the mass fraction of combustibles in fly ash of the boiler to staying at a high level. Some measures were adopted, which includes to normalize the coal blending management, to adjust the air distribution of the HTNR3 swirl pulverized coal burner according to different coal type and to control the first air speed for blind coal, and when a third of incoming coal is blind coal and twothirds are bituminous coal, the mass fraction of combustibles in fly ash of the boiler can be controlled at about three percents.

Key words: Key words:combustion regulation, combustibles in fly ash, blending, swirl pulverized coal burner

HE Wenbo, YIN Tiebing. Analysis on reasons of higher mass fraction of combustibles in fly ash of coalfired boiler and countermeasures[J]. Huadian Technology, 2013, 35(7): 68-69.

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Analysis on reasons of higher mass fraction of combustibles in fly ash of coalfired boiler and countermeasures

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