Study of kinetic characteristics of mechanical activated micro grinding coals in the process of thermal decomposition and ignition

In this paper, we investigate the effect of mechanically activating grinding of coals of various degrees of metamorphism by two different methods - determination of the flash time in a vertical tubular furnace and thermogravimetric analysis. In the experiments, the coals that had been processed on a vibrating centrifugal mill and a disintegrator were compared. The experiments showed a decrease in the ignition temperature of mechanically activated coals, as well as the effect of mechanical activation on the further process of thermal-oxidative degradation.