Dynamic hierarchical segmentation of mine ventilation systems in mo- deling methods of improvement of aerological safety

Authors: Ушаков В. К. 

Improvement of aerological safety in work of miners is achieved by synthesis of reliable and efficient mine ventilation systems (MVS). The initial synthesis uses rational tactics of MVS restoration, which ensures maintainability of the system without correction of its base design. The algorithm is developed for the dynamic hierarchical segmentation of MVS, which is the first-priority task in selecting rational approach to restoration of MV, i.e. the required air distribution. Segmentation of MVS consists in its representation as a hierarchy of aerodynamically connected, differentlevel segments containing groups of air consumers. Such hierarchical grouping of air consumers in different-level segments allows identifying groups of consumers for efficient air re-distribution, finding out branches for air inlet and outlet in each segment, and, consequently, selecting installation sites for air flow controllers as well as underground excavations to be expanded. The hierarchical segmentation means identification of a path of splitting a fresh air current into flows to pass all smaller consumers (including single users), or, vice versa, a path of confluence of return ventilation air from single users to return air current from larger groups of consumers. Owing to dynamics of MVS, its hierarchical segmentation is performed as dynamic calculation if air distribution at the moment of failure. This allows selecting the rational tactics of MVS restoration based on the dynamic optimized air distribution control. As a result, the availability factor of MVS increases (due to decrease in the average duration of the required air distribution restoration), and longwall production output grows (owing to reduction in downtime for ventilation reasons).

Keywords: Mine ventilation system, reliability, efficiency, rational restoration tactics principle, dynamic hierarchical segmentation of MVS.
For citation:

Ushakov V. K. Dynamic hierarchical segmentation of mine ventilation systems in modeling methods of improvement of aerological safety. MIAB. Mining Inf. Anal. Bull. 2019;(12):76-85. [In Russ]. DOI: 10.25018/0236-1493-2019-12-0-76-85.

Acknowledgements:
Issue number: 12
Year: 2019
Page number: 76-85
ISBN: 0236-1493
UDK: 622.4:622.019.3
DOI: 10.25018/0236-1493-2019-12-0-76-85
Article receipt date: 27.05.2019
Date of review receipt: 07.10.2019
Date of the editorial board′s decision on the article′s publishing: 11.11.2019
About authors:

V.K. Ushakov, Dr. Sci. (Eng.), Professor,
National University of Science and Technology «MISiS»,
119049, Moscow, Russia, e-mail: ud@msmu.ru.

For contacts:

V.K. Ushakov, e-mail: ud@msmu.ru.

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