The effect of mechanically activated coal grinding on the time of their ignition in a vertical tubular reactor is studied experimentally and numerically. The experiments showed that coal, ground by an activator mill (disintegrator mill), ignites faster due to the effect of mechanical activation. According to numerical calculation of the processes of ignition and combustion of mechanically activated pulverized coal fuel, it is clear that the use of non-stationary methods for turbulence simulation and a model of the volatile yield, taking into account the structure of coal matter, allow an estimate of the contribution of mechanically activated grinding to the intensity of devolatilization.

中文翻译：

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立式管式反应器中机械活化粉煤的着火试验

通过实验和数值研究了机械活化磨煤对其在立式管式反应器中着火时间的影响。实验表明，由于机械活化的作用，由活化剂磨（粉碎机）磨碎的煤点燃得更快。根据对机械活化煤粉燃料着火和燃烧过程的数值计算，很明显，考虑到煤质的结构，使用非平稳方法进行湍流模拟和挥发物产量模型是允许的。机械活化研磨对脱挥发分强度的贡献的估算值。