Low-oxygen low-nitrogen combustion system for coal-fired chain grate boiler
A chain boiler, low-nitrogen combustion technology, applied in the field of boiler combustion, can solve the problems of high nitrogen oxide content, difficult combustion of raw coal, low combustion temperature, etc., and achieves high temperature, which is beneficial to waste heat recovery and improves combustion efficiency.
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[0019] The present invention will be described in detail below with reference to the drawings and specific embodiments.
[0020] Low oxygen and low nitrogen combustion system for coal-fired chain boiler, such as figure 2 with image 3 As shown, it includes a furnace 1, a combustion tube 17, a fan coal mill 5, and a fuel delivery pipe 18. A partition 14 is arranged in the furnace 1 to divide the furnace 1 into a combustion zone and a heat absorption zone 9. On the partition 14 At least one heat conduction channel 13 is provided to connect the combustion zone and the heat absorption zone 9. The partition plate 14 can fully superimpose and mix the high-temperature combustion flame entering the combustion zone, which is beneficial to increase the combustion temperature and make the fuel burn more fully. Two combustion cylinders 17 are respectively provided on two opposite side walls of the furnace 1, and the combustion cylinders 17 are connected and communicated with the furnace 1....
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