Low-nitrogen combustion technique based on circulating fluidized bed boiler
A circulating fluidized bed, low-nitrogen combustion technology, applied in the field of boiler combustion, can solve the problems of affecting the full combustion of fuel in the boiler, the reduction of boiler combustion efficiency, and the full combustion of unfavorable fuels, etc. Long time, the effect of reducing the generation of NOx
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[0036] The present invention will be further described in detail below in conjunction with the drawings and specific embodiments.
[0037] As shown in the figure, a low-nitrogen combustion process based on a circulating fluidized bed boiler. The circulating fluidized bed boiler includes a boiler 1, a cyclone separator 22, a dust collector 19, an induced draft fan 17 and a smoke stack 16, which are sequentially connected. The four walls of the inner wall of the boiler 1 are provided with water-cooled walls 25 with relief pipes. The relief pipes include single-hole relief pipes and double-hole relief pipes. The upper part of the boiler 1 is the dilute phase oxidation zone and the lower part is the dense-phase reduction zone. The bottom is provided with a water-cooled air distribution plate 24 for distributing the primary air. The outlet of the boiler 1 is connected to the inlet of the cyclone separator 22. The cyclone separator 22 is connected to the dense phase reduction zone of th...
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