Kliuev E. Substantiation of thermal impact parameters on the solid coal-contained raw materials in geotechnologies of their exploration

The purpose of work is to study the parameters of the thermal impact on the solid coal-contained raw materials, that increases the yield of the gas phase to improve the geotechnical methods development of mineral deposits. The object of research - the process of thermal impact on the solid coal-contained raw materials as a binary mixture of coal and rock. Subject of research - the patterns of change of gas phase quantity and composition in the physical and chemical transformations in the process of thermal impact on the solid coal-contained raw materials. Methods of research. We used a complex method, including the analysis and synthesis of the literature to justify the feasibility of the thermal impact on the solid coal-contained raw materials for the gas phase receiving; mathematical modeling of physical and chemical processes, taking into account the properties of the mine medium and the process parameters; experimental studies on the properties of the rock mass to assess the degree of parameters influence of the thermal impact on the number of components and composition of the gas phase; processing of the results by methods of mathematical statistics. Scientific results: for the first time, it had been set the regularities, that characterizing the influence of coal and rock ratios in binary mixtures by the specific output of the gas phase, allowing to justify the parameters of the thermal impact on the solid coal-contained raw materials in geotechnologies of their exploration; for the first time, it had been obtained the regularities, that characterizing the changes yield of carbon monoxide, hydrogen and methane on the temperature during the thermal impact on mine medium in geotechnologies of mineral deposits exploration that can increase the output of flammable components. The practical significance of the results is the development of techniques of experimental research on the characterization of the thermal impact on the mine medium as a binary mixture of coal and rock, for the gas phase receiving; tips for using methods of thermal processing of carbonaceous materials; the recommendations of the evaluation of the main technical and technological parameters of carbonaceous materials processing. Expected annual economic effect of the developed recommendations amounted to 600 thousand UAH.