TO THE QUESTION OF SCIENTIFIC SUBSTANTIATION OF THE CHOICE OF INDICATORS OF MANIFESTATION OF HAZARDOUS PROPERTIES OF COAL SEAMS
DOI:
https://doi.org/10.33042/2522-1809-2022-4-171-142-157Keywords:
coal, metamorphism, indicators, justification, mineral impurities, ratio, condition, dry, ashless, working, coal seams, mining, safety, regulatory framework, improvementAbstract
The article recalculates the quality indicators of coal for their working condition, taking into account the yield of ash and moisture content for coal seams, followed by an analysis of changes in the correlations between the indicators. The need to consider the fuel for its working condition is due to different end goals between establishing the consumer qualities of coal and the manifestation of the hazardous properties of coal seams. Different ultimate goals of the problems under consideration imply different ways of solving them, including differences between the influencing factors and their parameters.
The methodology provides for the achievement of the goal to use the initial experimental data that have been accumulated over several decades based on the experience of using coal for industrial purposes. The condition and quality of coal after its preparation for use differs significantly from the condition in the mining area. These differences are associated with the preliminary enrichment of coal and the removal of a certain amount of mineral impurities.
Based on conducted research out, the features of the choice of indicators of metamorphic transformations of coals were established, which are used in parallel, respectively, to establish the quality of fuel and predict the hazardous properties of coal seams. Discrepancies between the indicators of the degree of metamorphism used in the current regulatory framework for the safe conduct of mining operations and the state of fuel during mining operations in underground conditions are revealed. To improve normative documents on safe mining operations, it is necessary to consider indicators that characterize not only the organic (combustible) part of the fuel, but also the presence of mineral impurities and moisture in coals in the mining area.
References
Coal Mine Dust Control Guide (1979). Moscow, Nedra. [in Russian]
Rules of mining on the seams, which propensity to gas dynamic phenomena: SOU 10.1.00174088.011:2005. (2005). Kyiv, Ukraine Ministry of Coal Industry. [in Ukrainian]
Guide to the design of ventilation of coal mines. (1994). Kyiv, Osnova. [in Russian]
KD 12.01.402-2000 Guidelines for the prevention and suppression of endogenous fires in coal mines in Ukraine. (2000). Donetsk, NIIGD. [in Russian]
Instructions for the forecast and prevention of sudden breakthroughs of methane from the soil of mine workings. (1987). Donetsk, MakNII. [in Russian]
Rules for determining the effectiveness of advanced protection of formations prone to gas-dynamic phenomena. (2009). Kyiv, Ukraine Ministry of Coal Industry. [in Ukrainian]
Catalog of dynamic rock faults in coal mines. (1983). Leningrad, VNIMI. [in Russian]
Endogenous fires in the coal mines of Donbass. Warning and suppression. Instruction. (1997). Donetsk, NIIGD. [in Russian]
SOU 10.1.0017-4088.011-2004 Degassing of coal mines. Requirements for methods and schemes of degassing. (2004). Kyiv, Ministry of Fuel and Energy of Ukraine. [in Russian]
Schemes and methods for controlling gas separation in the excavation areas of coal mines. (2006). Kyiv, State Department of Industrial Safety, Labor Protection and Mining Supervision. [in Ukrainian]
GOST 17070-2014. Coals. Terms and Definitions. (2015). Official publication. Moscow, Standartinform. [in Russian]
Mining Encyclopedia. T.3: Kengan - Ort. (1987). Moscow, Sov. Encyclopedia. [in Russian]
GOST 25543-2013. Brown coals, hard coals and anthracites. Classification according to genetic and technological parameters. (2014). Official publication. Moscow, Standartinform. [in Russian]
Geological and coal-chemical map of the Donetsk basin / DonUGI. Issue. VIII. (1954). Moscow, Ugletekhizdat. [in Russian]
Standard Test Methods for Coals. Coal classification. (2019). Moscow: Reklama master. [in Russian]
Handbook on the quality and washability of hard coals and anthracites of the Ukrainian SSR (Donbass within the borders of the Ukrainian SSR, Lvov-Volyn basin). Characteristics of the quality of hard coals and anthracites of the Ukrainian SSR. (1965). Moscow, Nedra. [in Russian]
Handbook on the quality of coal and anthracite of the Donetsk and Lvov-Volyn basins. (1972). Donetsk Research Coal Institute, Moscow, Nedra. [in Russian]
GOST 27313-95 (IСО 1170-77) Interstate standard. Solid mineral fuel Designations of quality indicators and formulas for recalculating analysis results for various fuel conditions. (2003). Official edition. Minsk, Interstate Council for Standardization, Metrology and Certification. [in Russian]
Antoshchenko, N.I., Tarasov, V.Yu., Zaika, R.G., Zolotareva, E.V. and Zakharova, O.I. (2020). On determining coal classification indicators for establishing dangerous properties of mines. Geo-Technical Mechanics, 152, 149-159. [in Russian]. DOI: https://doi.org/10.15407/geotm2020.152.149
Antoshchenko, M., Filatieva, E., Yefimtsev, V. and Tarasov, V. (2020). Peculiarities of using classification indicators of the coal metamorphism degree for predicting the hazardous coal seams properties. E3S Web of Conferences; Les Ulis, 201, 01014. DOI: https://doi.org/10.1051/e3sconf/202020101014
Oparin V.N. et al. (2014) On some features of the interaction between geomechanical and physicochemical processes in coal seams of Kuzbass / Physical and technical problems of mining, 2, 3-30. [in Russian]
Grekov S.P., Vsjakij A.A. (2014) Influence of sulfur content in coals on the probability of their spontaneous combustion. Coal of Ukraine, 4, 18-21. [in Russian] http://nbuv.gov.ua/UJRN/ugukr_2014_4_6
Uspenskij V.A. (2006). Experience in the material balance of processes occurring during the metamorphism of coal seams. Oil and gas geology. Theory and practice, 1, 1-10. [in Russian]
Koshovskij B.I., Orlikova V.P. (2015). Influence of Moisture on the Process of Low-Temperature Coal Oxidation. Coal of Ukraine, 3-4, 39-43. [in Russian] http://nbuv.gov.ua/UJRN/ugukr_2015_3-4_9
Akin'shin B.T. (1985). Metamorphism and relationship of micro- and macroporous structure, coal moisture content with gas content of seams. Coal of Ukraine, 3, 37-39. [in Russian]
Medvedev Je.N., Saranchuk V.I., Kachan V.N. (1984). Estimation of the dust-forming ability of coals in the series of metamorphism. Coal of Ukraine, 9, 32-33. [in Russian]
Downloads
Published
How to Cite
Issue
Section
License
The authors who publish in this collection agree with the following terms:
• The authors reserve the right to authorship of their work and give the magazine the right to first publish this work under the terms of license CC BY-NC-ND 4.0 (with the Designation of Authorship - Non-Commercial - Without Derivatives 4.0 International), which allows others to freely distribute the published work with a mandatory reference to the authors of the original work and the first publication of the work in this magazine.
• Authors have the right to make independent extra-exclusive work agreements in the form in which they were published by this magazine (for example, posting work in an electronic repository of an institution or publishing as part of a monograph), provided that the link to the first publication of the work in this journal is maintained. .
• Journal policy allows and encourages the publication of manuscripts on the Internet (for example, in institutions' repositories or on personal websites), both before the publication of this manuscript and during its editorial work, as it contributes to the emergence of productive scientific discussion and positively affects the efficiency and dynamics of the citation of the published work (see The Effect of Open Access).
