Coal powder decoupling combustor development

Abstract

Abstract:

Abstract:Coal powder burning initial stage low NOx emission principle was analyzed. A kind of direct flow decoupling combustor for low volatile matter was introduced. This combustor applied horizontal multistage staged combustion. Thick side coal powder flow can be separated into thick and thin by powder collector, flame holder and other devices. Heat to flame side ultra thick flow was enhanced. Besides increased the combustion stability, the coal pyrolysis and gasification production was efficiently utilized. Microcosmic air staged combustion was deepened. NOx generation was reduced. Based on the simulation calculation, coldstage and hotstage experiment on 1025t/h boiler decoupling combustor, the design thought of coal powder combustor was proved. 

Key words:

Keywords:coal powder combustor, decoupling combustion, NOx, combustion efficiency, stable combustion

HAO Jiangping1,WANG Jing2,LOU Huiru3,GAO Shiqiu4.

Coal powder decoupling combustor development

[J]. Huadian Technology, 2016, 38(7): 1-3.

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Coal powder decoupling combustor development

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