CAJ | 학술논문

在一维煤粉燃烧炉上进行了不同煤种、不同细度的分级燃烧试验。实验发现，分级燃烧对高挥发份煤种以及同一煤种的细煤粉的Nox排放浓度的降低效果更显著，而且在分级燃烧条件下，同一煤种细煤粉的飞灰含量较粗煤粉低。另外，还得到了不同煤种在分级燃烧条件下的最佳一次风空气系数。图9表2参3
재일유매분연소로상진행료불동매충、불동세도적분급연소시험。실험발현，분급연소대고휘발빈 매충이급동일매충적세매분적Nox배방농도적강저효과경현저，이차재분급연소조건하，동일매충세매분적 비회함량교조매분저。령외，환득도료불동매충재분급연소조건하적최가일차풍공기계수。도9표2삼3
Investigations on air staging combustion have been carried out using different coals and dif ferent fineness with a one-dimensional furnace burning pulverized coal. The experimental results have shown that air staging combustion has more remarkable effect in NOx reduction on high-volatile coal and fine pulverized coal. For the same coal, the unburnt carbon in fly ash for the fine pulverized coal is lower than that for the coarse one. Furthermore, the optimal primary air ratio λ for the different coals was obtained under the air-staging combustion. Figs 9, tables 2 and refs 3. and fine pulverized coal. For the same coal, the unburnt carbon in fly ash for the fine pulverized coal is lower than that for the coarse one. Furthermore, the optimal primary air ratio λ for the different coals was obtained under the air-staging combustion. Figs 9, tables 2 and refs 3.