SURFACE MINING
Original Paper
UDC 622.85:622.235 © V.N. Zakharov, Yu.P. Galchenko, V.S. Fedotenko, 2024
ISSN 0041-5790 (Print) • ISSN 2412-8333 (Online) • Ugol’ – Russian Coal Journal, 2024, № 11S, pp. 76-81
DOI: http://dx.doi.org/10.18796/0041-5790-2024-11S-76-81
Title
SUBSTANTIATION OF THE PHYSICAL MODEL OF THE PROCESS OF DUST AND GAS EMISSION INTO THE ATMOSPHERE DURING THE BREAKING ROCKS IN QUARRY
Authors
V.N. Zakharov, Yu.P. Galchenko, V.S. Fedotenko
Mel’nikov Research Institute of Comprehensive Exploitation of Mineral Resources of Russian Academy of Sciences (IPKON RAS), Moscow, 111020, Russian Federation e-mail: ipkon-dir@ipkonran.ru
Authors Information
Zakharov V.N. – Doctor of Engineering Sciences, Academician of the Russian Academy of Sciences, Professor, Director of the Mel’nikov Research Institute of Comprehensive Exploitation of Mineral Resources of Russian Academy of Sciences (IPKON S), Moscow, 111020, Russian Federation, e-mail: ipkon-dir@ipkonran.ru
Galchenko Yu.P. – Doctor of Engineering Sciences, Professor, Leading Researcher of the Mel’nikov Research Institute of Comprehensive Exploitation of Mineral Resources of Russian Academy of Sciences (IPKON S), Moscow, 111020, Russian Federation, e-mail: schtrek33@mail.ru
Fedotenko V.S. – Doctor of Engineering Sciences, Deputy Director for research, the Mel’nikov Research Institute of Comprehensive Exploitation of Mineral Resources of Russian Academy of Sciences (IPKON S), Moscow, 111020, Russian Federation, e-mail: victorfedotenko@gmail.com
Abstract
The article proposes and develops a hypothesis about the separation of the process of release and absorption of the energy of the explosion of a technological charge into three qualitatively different stages related to different time scales: in the zone of high-explosive, rending and passive explosion action. The possibility of determining the height of the rise of a dust and gas jet before its transformation into a dust and gas cloud is considered. A hybrid model of the process of dust and gas emission into the atmosphere during the breaking rocks in quarries is substantiated and proposed, the use of which makes it possible to predict the movement of a fine fraction in the atmosphere and to quantify the vertical distribution of the volumes of these fractions. The processes of transformation of the detonation product flow into a dust and gas cloud upon reaching the maximum height are considered.
Keywords
Blasting breaking, atmosphere, dust-and-gas outburst, hybrid model, gas dynamics, jet, fine-dispersed component, dust and gas cloud.
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Acknowledgements
The research was performed with financial support from the Ministry of Science and Higher Education of the Russian Federation as part of Activity No.1 of the Integrated Scientific and Technical Programme of the Full Innovation Cycle, approved by Order No. 1144-р of the Government of the Russian Federation as of May 11, 2022, and Agreement No. 075-15-2022-1185 as of September 28, 2022, on providing grants from the federal budget in the form of subsidies in accordance with Item 4 of Article 78.1 of the Budget Code of the Russian Federation.
For citation
Zakharov V.N., Galchenko U.P., Fedotenko V.S. Substantiation of the physical model of the process of dust and gas emission into the atmosphere during the breaking rocks in quarry. Ugol’. 2024;(11S):76-81. (In uss.). DOI:10.18796/0041-5790- 2024-11S-76-81.
Paper info
Received September 15, 2024
Reviewed October 21, 2024
Accepted October 31, 2024