一般来说,调整锅炉燃烧时,调试人员往往比较重视风的调整,而忽视给粉机的运行方式和粉的调平工作。有资料认为(并已被运行经验所证明),到各燃烧器去的各平行输粉管道中煤粉流量的不均匀分配,将引起火焰中心偏斜,局部地区的CO等可燃气体和氮氧化物(NO_x)浓度增高以及飞灰可燃物增加,甚至引起火焰闪动、燃烧不稳定,乃至熄火。 In general, the adjustment of the boiler combustion, the commissioner often pay more attention to the wind adjustment, while ignoring the operation of the powder machine and powder leveling work. It is believed (and proven by operation experience) that the uneven distribution of pulverized coal flow in each parallel pipe to each burner will cause the center of flame to be skewed, combustible gases such as CO in some areas and nitrogen oxides (NO_x) concentration increases and fly ash combustibles increase, and even cause the flame flashing, unstable combustion, and even turn off the flame.