The pore size distribution and specific area of the pulverized coal are measured as functions of pulverized coal particle size and HTA temperature, before and after the homogeneous flame appears.

• 在煤粉气流发生均相着火前后过程中，对其中不同粒径煤粉的孔隙结构及其比表面积随热风温度的升高而产生的变化进行了试验研究。