Determining the Composition and Particle Size of Coal Dust by Dynamic Light Scattering

The physicochemical properties of coal dust from fine filters in the degassing system of a Kuznetsk Basin mine are studied. The dust sample is investigated by atomic-emission spectroscopy, IR spectroscopy, dynamic light scattering, and thermal analysis. The dust undergoes technical analysis and granulometric analysis; the textural characteristics of its pore structure are analyzed by adsorption. Finally the change in chemical composition of the mineral components in the dust is expressed as a function of the particle size.