Analyzed the coal dust samples we collected, mensurated the minimum ignition temperature of coal dust layer and coal dust cloud in different diameter range.
对所采集煤尘样品进行实验分析，测定了不同粒径范围下煤尘层和煤尘云的最低着火温度。
2
The theoretical results ofdust cloud height and particle ignition time are in good agreement with those of experiments.
另外，燃烧粉尘云轮廓及颗粒点火时间的理论值与实验结果较一致，说明此模型能很好地描述上述流动特征。
3
The dust concentration and velocity of turbulence have significant effects on the level of explosion and measurement of the minimum ignition energy ofdust clouds.