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本文以煤均匀着火理论和气固化学反应理论为基础,建立了描述煤颗粒群着火的数学模型,并以单颗粒型煤为例,用该模型对型煤着火前内部温度场及型煤表面附近氧和挥发分气体浓度场进行了计算。计算结果与实验结果基本符合。
Based on the theory of homogeneous fire and the theory of gas-solid chemical reaction, a mathematical model describing the ignition of coal particle swarm is established. Taking single particle briquette as an example, the model is used to analyze the internal temperature field before briquette fire and the surface of briquette Oxygen and volatile gas concentration fields were calculated. The calculated results are in good agreement with the experimental results.