Coal slime has been discharged or piled up on the spot as solid waste for a long time, causing a lot of waste of resources and environmental pollution. A 75 t/h circulating fluidized bed (CFB) boiler with post-combustion technology was built for combustion of coal slime. To explore the post-combustion technology and the influences of post-combustion air speed and number of post-combustion air nozzles on combustion and original NO_x emission characteristics of Yankuang Coal Slime, the experiments were carried out on a 75 t/h circulating fluidized bed industrial boiler. The experimental results showed that post-combustion technology makes the NO_x original emission lower and can meet ultra-low emission requirement. Both the post-combustion air speed and the number of post-combustion air nozzles affected the post-combustion air flow. As the post-combustion air speed and the number of post-combustion air nozzles increase, NO_x original emissions decreased and CO emissions increased slightly.

煤泥长期以来作为固体废物排放或堆放，造成大量资源浪费和环境污染。建造了一台 75 t/h 的循环流化床 (CFB) 锅炉，采用后燃技术，用于煤泥的燃烧。为探讨后燃技术及后燃风速和后燃风喷嘴数量对兖矿煤泥燃烧及原始NO _x排放特性的影响，在75 t/h循环流化煤泥上进行了试验。床工业锅炉。实验结果表明，二次燃烧技术，使NO _X原始排放更低，可满足超低排放要求。燃烧后空气速度和燃烧后空气喷嘴的数量都影响燃烧后空气流量。随着后燃风速和后燃风喷嘴数量的增加，NO _x原始排放量减少，CO排放量略有增加。