Antoshchenko М., Tarasov V., Zaika R., Zolotarova O., Zakharova O. On determining coal classification indicators for establishing dangerous properties of mines (2)

Деталі
Батьківська категорія: Геотехнічна механіка, 2020
Категорія: Геотехнічна механіка, 2020, № 152

Geoteh. meh. 2020, 152, 149-159

https://doi.org/10.15407/geotm2020.152.149

ON DETERMINING COAL CLASSIFICATION  INDICATORS FOR ESTABLISHING DANGEROUS PROPERTIES OF MINES

1Antoshchenko М., 1Tarasov V., 1Zaika R., 1Zolotarova O., 1Zakharova O.

1Volodymyr Dahl East Ukrainian National University

УДК 622.02:622.822.225

Language: Russian

Annotation. 

Currently, more than 20 qualification indicators are known by which degree of metamorphic coal transformations are established. Most of these indicators are designed for determining technological properties with industrial use of coal in mind. Due to sufficient knowledge of the indicators used, industrial classifications are constantly being improved. The modern classification by genetic and technological parameters groups the coals by the grades based on ten indicators. Of these, only one - the mass yield of volatile substances during the thermal decomposition of coal - is used as the main indicator of the manifestation of dangerous properties of coal seams without due scientific justification. Dangerous properties of coal seams during mining include: gas content of coal, a tendency to gas-dynamic phenomena and spontaneous combustion, dust forming ability and explosiveness of coal dust. In industrial classifications, the main indicator is determined for the dry ash-free state of organic matter. Manifestation of dangerous properties of coal seams occurs in the presence of both moisture and mineral impurities. This fact is not taken into account by other auxiliary indicators used to predict the hazardous properties of coal seams. Moisture in coal seams is in at least four states, and it is completely removed while analyzing the samples and is not taken into account in volatile products of thermal decomposition of coal. Thus, when using the indicator of mass output of volatile substances, influence of moisture in any form of its presence in coal on the occurrence of emergency situations is automatically ignored. The probability of emergencies during mining is largely determined by the ratio between components of organic mass (C, O, H, S, N) and mineral impurities. It is also not taken into account in normative documents which regulate safety of coal seam mining. The classification indicators defined in different ways characterize different aspects of coal conversion in metamorphic processes. Volatiles yield and average vitrine reflectance, well studied in industrial applications, correspond to different aspects of degree of conversion of starting organic matter. In order to establish dangerous properties of coal seams, their mutual substitution is unacceptable, which is confirmed by nonlinear connection between them. The existence of a genetic relationship between the outburst and fire hazard of coal seams has been established. This indicates the need to develop a unified classification of the hazardous properties of coal seams by genetic, mining engineering and geological parameters. The scientifically substantiated use in regulatory documents of a set of classification indicators that directly characterize the manifestations of the hazardous properties of coal seams will help to reduce number of accidents and injuries in coal mines.

Key words:

coal seams, properties, gas content, outburst hazard, spontaneous combustion, dust formation, explosiveness, moisture, metamorphism, regulatory documents, improvement.

References

  1. Rjabinkin S. V. (2013), “Some parameters of the classification of coals“, VII All-Russian lithological meeting "Sedimentary basins, sedimentation and post-sedimentation processes in geological history". Grew up. acad. Sciences, Sci. council on problems of lithology and sedimentary minerals at the ONZ; Sib. department, Institute of Oil and Gas Geology and Geophysics named after AA Trofimuka.,Novosibirsk,.RU, no. 3, рр. 35-39.
  2. Kotkin A.M., Kipnis Sh.Sh., Lashhenko V.I. [and others]  (1977), “New classification of Donetsk coals“, Coal of Ukraine, no. 7, рр. 42-43.
  3. Ochkur N.P. and Kozyrskaja V.F (1992), “Free swelling index for assessing sintering capacity and grade composition of Donetsk coals”, Coal of Ukraine, no. 2, рр. 60-64.
  4. Zhikaljak N. V., Piskovoj M. A. and Ochkur N. P. (2003), “On the classification of coals and the assessment of their use according to the data of geological exploration“, Coal of Ukraine, no 7, рр. 34—36.
  5. Interstate council for standardization, metrology and certification (2014), GOST 25543-2013. Ugli burye, kamennye i antracity. Klassifikacija po geneticheskim i tehnologicheskim parametram Izdaniye ofitsial’noye [GOST 25543-2013. Brown coals, hard coals and anthracites. Classification according to genetic and technological parameters. Official publication], Standartinform, Moscow, Russia.
  6. Ukraine Ministry of Coal Induistry (2005), 10.1.00174088.011:2005. Pravyla vedennia girnychykh robit na plastakh, skhylnykh do gazodynamichnykh yavishch [10.1.00174088.011:2005.Rules of mining on the seams, which propensity to gas dynamic phenomena], Kyiv, Ukraine.
  7. Ministry of Coal Industry of Ukraine (1994), DNAOT 1.1.30-6.09.93 Rukovodstvo po proyektirovaniyu ventilyatsii ugolnykh shakht [SNALS 1.1.30-6.09.93 Guidance on planning of ventilation of coal mines], Osnova, Kyiv, UA.
  8. Rukovodstvo po borbe s pylju v ugonykh shakhtakh [Guidance on a fight against a dust in coal mines] (1979), Nedra, Moscow, SU.
  9. Ministry of Coal Industry of Ukraine (1997), KD 12.01.401-96 Endogennyye pozhary na ugolnykh shakhtakh Donbassa. Preduprezhdeniye i tusheniye. Instruktsiya. Izdaniye ofitsialnoye [KD 12.01.401-96 Endogenous fires in the coal mines of Donbass. Prevention and suppression. Instructions. Official publication], NIIGD, Donetsk, UA.
  10. Medvedev Je.N., Saranchuk V.I. and Kachan V.N. (1984) “Evaluation of the dust-generating capacity of coals in the series of metamorphism“, Coal of Ukraine, no. 9, pp 32-33.
  11. Akinshin B.T. (1985), “Metamorphism and relationship of micro- and macroporous structure, moisture content of coal with gas contents of lava“, CoalofUkraine, pp. 37-39.
  12. Antoshhenko N.I. and Shepelevich V.D. (2006), Metan v ugolnykh plastakh ot obrazovaniya do vydeleniya [Methane in coal beds from education to the selection], DonGTU, Alchevsk, UA.
  13. Mironov K.V. (1982), Spravochnikgeologa-ugolshchika [Reference book of coal geologist-miner], Nedra, Moscow, SU.
  14. Zheldakov M.E. and Ivanova Je.I. (1980), SpravochnikpokachestvuantracitovSovetskogoSojuza [Reference book in quality антрацитов of Soviet Union], Nedra, Moscow, SU.
  15. Geologo-uglehimicheskaiakartaDonetskogobasseyna. VypuskVIII. Obosnovaniepostroeniiageologo-uglehimicheskoykartyDonetskogobasseyna [Geological-coal-chemical map of the Donetsk pool. Producing VIII. Ground of construction of Geological-coal-chemical map of the Donetsk pool.] (1954), Ugletekhizdat, Moscow, SU.
  16. Jettinger I. L. and Shulman N. V. (1975), Raspredeleniemetanavporakhiskopaemykhugley [Distribution of methane is in the pores of fossil coals], Nauka, Moscow, SU.
  17. Gapeev A. A. (1949), Tverdyegoriuuchie iskopaemye (kaustobiolity) [Hard fuels are minerals (caustobioliths)], Gosudarstvennoe izdatelstvo geologicheskoy literatury, Moscow, SU.
  18. Menkovskiy M. A. (1973), Analiticheskaia Khimiia i tehnicheskiy analiz ugley [Analytical chemistry and technical analysis of coals], Nedra, Moscow, SU.
  19. Uspenskiy V. A. (2006), “The experience of the material balance of the processes occurring during the metamorphism of coal seams”, Petroleum Geology - Theoretical and Applied Studies, no 1, pp. 12.
  20. Danilov O. S., Miheev V. A. and Moskalenko T. V. (2011), “The relationship between the genetic and technological parameters of coals, adopted in the classification, with the structural parameters of their organic matter“, Mining informational and analytical bulletin(scientific and technical journal), no. 8., pp. 100 -104.
  21. Oparin V.N., Kiryaeva T.A., Tanaino A.S., Efimov V.P., Astrakhantsev I.E., Gavrilov V.Y., Shutilov R.A., Grenev I.V. and Kovchavtsev A.P (2014), “About some features of cooperation between geomechanical and physical and chemical processes in the coal beds of Kuzbass”, JournalofMiningScience, Vol. 50, no. 2, pp. 191-214.

https://doi.org/10.1134/S106273911402001X

  1. Vialov V. [and others]  (1994), “The qualities and properties of anthracites of the main coal basins and deposits of the CIS and their rational use“, Overview information. Geology, methods of searching, exploration and estimation of deposits of fuel and energy raw materials, no. 6, pp. 1-74.
  2. Ganova S. D., Skopinceva O. V. and Isaev O. N. (2019), “On the issue of studying the composition of hydrocarbon gases of coals and dust to predict their potential hazard“, Bulletin of the Tomsk Polytechnic University,Vol 331, no 6.

About the authors

Antoshchenko Mykola Ivanovych, Doctor of Technical Sciences (D. Sc), Professor, Professor in the Department of Chemistry and Industrial Safety Measures, Volodymyr Dahl East Ukrainian National University (VDEUNU), Severodonetsk, Ukraine, Ця електронна адреса захищена від спам-ботів. вам потрібно увімкнути JavaScript, щоб побачити її. .

Tarasov Vadym Yuriyovych, Candidate of Technical Sciences (Ph.D.), Associate Professor, Associate Professor in the Department of Chemistry and Industrial Safety Measures, Volodymyr Dahl East Ukrainian National University (VDEUNU), Severodonetsk, Ukraine, Ця електронна адреса захищена від спам-ботів. вам потрібно увімкнути JavaScript, щоб побачити її. .

Zaika Raisa Grygorivna, Candidate of Technical Sciences (Ph.D.), Associate Professor, Head of the Department of Chemistry and Industrial Safety Measures, Volodymyr Dahl East Ukrainian National University (VDEUNU), Severodonetsk, Ukraine, Ця електронна адреса захищена від спам-ботів. вам потрібно увімкнути JavaScript, щоб побачити її. .

Zakharova Olha Ivanavna, Candidate of Chemical Sciences (Ph.D.), Associate Professor, Associate Professor in the Department of Chemistry and Industrial Safety Measures, Volodymyr Dahl East Ukrainian National University (VDEUNU), Severodonetsk, Ukraine, Ця електронна адреса захищена від спам-ботів. вам потрібно увімкнути JavaScript, щоб побачити її.

Zolotariova Olena Viacheslavivna, Candidate of Pedagogic Sciences (Ph.D.), Associate Professor, Associate Professor in the Department of Chemical Engineering and Ecology, Volodymyr Dahl East Ukrainian National University (VDEUNU), Severodonetsk, Ukraine, Ця електронна адреса захищена від спам-ботів. вам потрібно увімкнути JavaScript, щоб побачити її.