THERMOPHYSICS OF MINING


Original Paper

UDC 551.1/.4 (571 + 574) N.I. Akulov, S.A. Prokopiev, E.S. Prokopiev, O.L. Alekseeva, 2022

ISSN 0041-5790 (Print) ISSN 2412-8333 (Online) Ugol Russian Coal Journal, 2022, S12, pp. 53-59

DOI: http://dx.doi.org/10.18796/0041-5790-2022-S12-53-59

Title

SPONTANEOUS COMBUSTION TECHNOGENIC REDEPOSITED OAL-BEARING DEPOSITS OF KUZBASS

Authors

Akulov N.I.1, Prokopiev S.A.1, 2, Prokopiev E.S.1, Alekseeva O.L.1

1 FGBUN "Institute of the Earth's Crust SB RAS", Irkutsk, 664033,Russian Federation

2CEO LLC NPK "Spirit", Shelekhov, 666037, Russian Federation

Authors Information

Akulov N.I., Doctor of Geol.-min. sciences, Leading Researcher, e-mail: akulov@crust.irk.ru

Prokopiev S.A., PhD (Engineering), Head complex use department mineral raw materials, General Direktor, e-mail: psa@spirit-irk.ru

Prokopiev E.S.,Lead Engineer of Department integrated use mineral raw materials, e-mail: prokopyeves@mail.ru

Alekseeva O.L., Lead Engineer of Department integrated use mineral raw materials, e-mail:RSSm38@yandex.ru

Abstract

The article considers one of the most interesting natural processes - spontaneous combustion of technogenically redeposited coal-bearing deposits at the Osinnikovskoye coal deposit. Based on the study of lithological and geochemical features of pyrolyzed coal-bearing deposits of heaps, the authors made the following conclusions: the dynamics of epigenesis of coal-bearing rocks is accompanied by an exothermic process, which results in low-temperature pyrolysis; pyrolysis promotes metasomatic transformations of rocks, consisting in the active removal of such components as SCN, etc. from the coal-bearing mass; in the process of jet gas mass transfer through fumarole channels, condensation of gaseous pyrolysis products occurs; a large accumulation on the surface of waste heaps of high-molecular hydrocarbon compounds in the form of asphaltenes, resins and sulfur contributes to spontaneous combustion and pyrogenesis (burning) of rocks.

Keywords

Spontaneous combustion, Coal-bearing strata, Waste heap, Biochemical focus, Sulfur, Pyrolysis asphaltenes.

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Acknowledgements

The research was carried out with financial support of the Development and implementation of complex technologies in the areas of exploration and extraction of minerals, industrial safety, bioremediation, creation of new deep conversion products from coal raw materials while consistently reducing the environmental impact and risks to human life Integrated Scientific and Technical Programme of the Full Innovation Cycle, approved by Order No. 1144- of the Government of the Russian Federation as of May 11, 2022.

For citation

Akulov N.I., Prokopiev S.A. Prokopiev E.S. & Alekseeva O.L. Spontaneous combustion of technogenic redeposited coal-bearing deposits of Kuzbass. Ugol, 2022, (S12), pp. 53-59. (In Russ.). DOI: 10.18796/0041-5790-2022-S12-53-59.

Paper info

Received November 1, 2022

Reviewed November 15, 2022

Accepted November 30, 2022