Three-dimensional numerical simulation of Nox in kiln
陶瓷窑炉内NOx生成的三维数值模拟

NO_ x formation mechanism during sintering was studied with the FLUENT software, and factors effecting the NO_ x formation were discussed to supply the relevant reference information for treatment and reducing of the NO_ x .The results show that the temperature uniformity of kiln becomes bad with the heating rate increasing, and the local high temperature point (area) forms easily, resulting in quicker the NO_ x generation;The intermediate product HCN or NH_ 3 concentration is smaller in farther area from the burner and body area, but the total NO and fuel type of NO concentrations are larger. However, the intermediate product NH_ 3 or HCN can not reduce the generation of harmful gases.