Science-based technological solutions for aerological risks reducing in operating and designing coal mines

The relevance of increasing the coal mines aerological safety is due to the complication of mining and geological conditions for the development of coal seams and the intensification of production processes in underground coal mining. The methodology for assessing the aerological risks of mines includes a background component, which consistss the mining and geological characteristics of the developed seams, and a systemic component, which consider mining coal seams conditions. On the basis of the research carried out, calculations were made. The results of assessing the degree of aerological risk of I, II and III ranks for super-category mines and mines angerous due to coal and gas sudden outbursts for different ventilation modes, which reflect the most favorable and unfavorable conditions of coal mining, are presented. It has been established that aerological risks of all ranks are determined to a greater extent by background indicators (gas content of formations, tendency to spontaneous combustion, rock bumps, dust-forming capacity, etc.) than by systemic factors (ventilation methods and schemes, gas content of the area, load on the stope, etc.). A comprehensive method for reducing dust and gas hazards in excavation areas, implemented as a method of moistening coal seams with gasfilled solutions of surfactants, has been scientifically substantiated. The method can be used to influence the coal seam in order to reduce its dust-forming capacity and gas emission, as well as to increase the efficiency of dust collection during coal breaking. A technique for coal mass treating with gas-filled solutions of surfactants was developed, including the use of rational moistening parameters.

Balovtsev S. V., Skopintseva O. V. Science-based technological solutions for aerological risks reducing in operating and designing coal mines. MIAB. Mining Inf. Anal. Bull. 2023;(2):139-151. [In Russ]. DOI: 10.25018/0236_1493_2023_2_0_139.

S.V. Balovtsev¹, Cand. Sci. (Eng.), Assistant Professor, e-mail: balovcev@yandex.ru, ORCID ID: 0000-0002-0961-6050,
O.V. Skopintseva¹, Dr. Sci. (Eng.), Professor, e-mail: skopintseva54@mail.ru, ORCID ID: 0000-0002-7257-8720,
¹ National University of Science and Technology «MISiS», 119049, Moscow, Russia.

S.V. Balovtsev, e-mail: balovcev@yandex.ru.

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