STUDY OF COAL DUST AFTER EXPLOSIONS BY SCANNING MICROSCOPY METHODS
The article discusses the results of scanning (raster) microscopic analysis of coal dust exposed to the thermal effect of the explosion ame front. The results are compared with the traditional visual inspection of cokes using optical microscopes. The characteristic objects in real dust deposition after the thermal effect of the explosion or with the direct participation of particles in the explosion (transfer of the ame front in the volume of oating particles) are revealed. Along with the features of detecting melted or foamed coal particles at the volumetric output of volatiles, the results of high-resolution scanning electron microscopy are considered: deposition detection of condensation soot particles less than 0.1 μm in size, small spherical particles of metal oxides, foamed and lamellar formations in 3-D format.