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本文采用完整的模拟３维气固两相流动、煤粉燃烧和传热的数值程序对实验室卧式炉分级送风以降低ＮＯｘ生成的燃烧过程进行了数值计算，程序中对气相采用欧拉法的通用输运方程，对煤粉颗粒采用拉格朗日的随机轨道法，用Ｄｅ′Ｓｏｅｔｅ的化学反应机理计算燃料ＮＯｘ的生成和用Ｚｅｌｄｏｖｉｃｈ机理计算热力ＮＯｘ的生成，针对分级燃烧降低ＮＯｘ生成的机理，实验中研究了３种配风工况，并结合数值研究具体分析了各工况下温度场和氧浓度场对ＮＯｘ生成的影响，最后将计算值和实验测得的ＮＯｘ生成量进行了比较，其结果是令人满意的。
In this paper, a complete simulation of three-dimensional gas-solid two-phase flow, pulverized coal combustion and heat transfer numerical program for the horizontal chamber of the laboratory horizontal furnace to reduce the formation of NOx combustion process were numerically calculated, the program for the gas phase using Euler Law of general transport equations, the use of Lagrange random particle orbit method, with De’Soete chemical reaction mechanism to calculate the formation of fuel NOx and Zeldovich mechanism to calculate the formation of thermal NOx, for staged combustion to reduce NOx formation The effects of temperature field and oxygen concentration field on the formation of NOx under various working conditions were analyzed in detail. Finally, the calculated values and experimentally measured NOx production were carried out In comparison, the result is satisfactory.