On the Issue of Assessing the Automation of Control of the Parameters of the Methane-Air Mixture

Tarasenko, I.A.; Kulikova, A.A.; Kovaleva, A.M.

doi:10.18796/0041-5790-2022-11-84-88

Cited by 3 publications

(1 citation statement)

References 8 publications

(8 reference statements)

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“…Необходимо проводить расчет устойчивости воздушных потоков в горных выработках по количественным параметрам, направлениям проветривания, фактору тепловой депрессии [23]. Аспекты аэрологической безопасности, основанные на количественных оценках рисков аварий, находят свои приложения в реализации проектов цифровой трансформации и интеллектуализации горнотехнических систем [24,25]. Это, в свою очередь, определяет перспективные направления развития технологической структуры угольных шахт [26,27], позволяет разрабатывать эволюционные модели системы безопасности угольных шахт на основе многофакторного моделирования, в том числе с использованием интеллектуальных алгоритмов и методов [28,29].…”

Section: Introductionunclassified

Higher rank aerological risks in coal mines

Balovtsev

2022

Min.Sci.Technol. (RUS)

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The steady trend of complication of mining and geological factors in underground coal mining and at the same time the processes of mining intensification cause growth of dynamic manifestations of natural factors of mining, such as sudden coal and gas outbursts, rock bursts, rock collapses, leading to gas and dust explosions and fires. This requires developing the models of different phenomena manifestation risks, which enable improving the process safety of a mining enterprise. In this study, based on the methodology of aerological risk assessment in coal mines, a structural analysis of aerological risks was carried out. The criteria of hazard of mining-geological and mine engineering factors and vulnerability of schemes and methods of ventilation, ventilation facilities, and main fans were developed. A hierarchical structure of aerological risks of higher ranks was developed. The presented risk structure allows determining the area of superposition of hazards of coal mining and vulnerability of ventilation systems for each mine and its individual facilities, as well as quantifying these areas in the form of aerological risks. The ranges of aerological risk values of higher ranks for super-category mines and mines hazardous by sudden coal and gas outbursts for different ventilation modes were established. The presented methodology enables forecasting and reducing aerological risks in course of designing, operation, liquidation, and conservation of coal mines.

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Section: Introductionunclassified

Higher rank aerological risks in coal mines

Balovtsev

2022

Min.Sci.Technol. (RUS)

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Monitoring of aerological risks of accidents in coal mines

Balovtsev

2023

Min.Sci.Technol. (RUS)

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The assessment and management of aerological risks in coal mine accidents are based on the development of a data analytics system that hosts design values for various parameters and subsystems related to coal mines, as well as the real-time monitoring of operational parameters through various sensors and devices. This study presents the methodology for monitoring aerological risks. It utilizes mining, geological, and geotechnical conditions for seam extraction, along with statistical data concerning elements of coal mine ventilation and gas drainage systems, to assess aerological risks at individual coal mine functionality levels and individual risk factors. Eight coal mines have been ranked according to their aerological risk level. For rank I, the minimum aerological risk is 0.0769, while the maximum is 0.5698. Rank II is associated with category II mines. Aerological risk for this rank is the lowest and ranges from 0,1135 to 0,3873. In the case of rank III, the minimum aerological risk is 0.057, with a maximum of 0.595. This ranking of coal mines by aerological risk level allows to identify potentially unsafe mines in terms of aerology, and enables us to determine aerological risk mitigation measures (technical, technological, and organizational) for each mine to enhance aerological safety.

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Modeling and Complex Analysis of the Topology Parameters of Ventilation Networks When Ensuring Fire Safety While Developing Coal and Gas Deposits

Босиков

Martyushev

Klyuev

et al. 2023

Fire

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Underground mining, including underground coal mining, is accompanied by accidents and fire hazards that pose a threat to the life safety of miners. The fire hazard increases with an increase in the mining depth. Currently, most accidents in coal mines are mine fires. The cost of eliminating mine fires is 80–95% of the cost of eliminating all accidents occurring at mining enterprises. Therefore, the problem of developing a new methodology for modeling the ventilation network parameters of the mine to increase the reliability of controlling the aerogas mode at the excavation site is very relevant. The comprehensive analysis and assessment of gas-dynamic processes in coalmines under study were carried out using the methods of probability theory and mathematical statistics. Spatial data were processed using spline interpolation in “gnuplot”. As a result, a generalized expression for the transfer functions of coalmine objects, taking into account delays, was developed, including the description of dynamic properties of mining sites under various operating modes. The principal possibility of using a graphical method for estimating additional parameters of the sections of the ventilation system branches has been proved due to the alignment of their profiles at an equivalent distance relative to an arbitrary analogue. The improved method of spatial modeling was used to determine the gas-dynamic characteristics through additive gas-dynamic processes. The studies have been carried out and the method for managing the process of changing connections between devices (controllers–switches) of the technical system was developed in order to obtain greater reliability for safe mining. In subsequent studies, there is an issue of more detailed clarification of the peculiarities concerning the interrelations between the studied parameters in several projections of the response space.

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On the Issue of Assessing the Automation of Control of the Parameters of the Methane-Air Mixture

Cited by 3 publications

References 8 publications

Higher rank aerological risks in coal mines

Higher rank aerological risks in coal mines

Monitoring of aerological risks of accidents in coal mines

Modeling and Complex Analysis of the Topology Parameters of Ventilation Networks When Ensuring Fire Safety While Developing Coal and Gas Deposits

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