Estimation of methane emission and ensuring the safety of drilling and blasting works in the open coal mining

Authors: Arhipov I.A.

In the process of deepening mining operations, gas emission increases as a result of an increase in the gas content of coal seams. At the same time, the risk of methane ignition increases, which is important during drilling and blasting operations and the interaction of gas with explosion products. It should be noted that during the explosion, environmental pollution occurs in the form of atmospheric pollution and non-extraction of resources as a result of drilling and blasting operations. One of the objectives of the study was to analyze the negative impact of methane ignition during drilling and blasting operations on the safety and environmental friendliness of mining operations. The mechanism of methane ignition and its interaction with explosion products has been studied in detail, as well as an analysis of methods for reducing the risk of methane ignition and accounting for gas release during drilling and blasting operations has been carried out. During the research, theoretical methods of cognition were used, such as analysis, abstraction and synthesis. As a result of the study, the main risks of methane ignition during drilling and blasting operations, the main ways of environmental pollution were identified, conclusions were drawn about the most effective ways to reduce the risk of methane ignition during drilling and blasting operations and accounting for gas emission during their implementation. To improve the environmental friendliness and safety in the development of coal seams, it is necessary to use degassing, in particular for drilling and blasting operations. The article presents the most promising areas for further research in the field of ensuring the safety and environmental friendliness of drilling and blasting operations, including research in the field of the effectiveness of using various technologies for extracting methane from a coal bed. The positive and negative aspects of these directions are noted.

Keywords: methane safety, drilling and blasting operations, explosives, ignition of methane, ignition of methane, explosive concentration, gas flow rate, resource-saving technologies, measurement of gas release, degassing, coalite, moistening of a coal seam.
For citation:

Arkhipov I.A. Estimation of methane emission and ensuring the safety of drilling and blasting works in the open coal mining. MIAB. Mining Inf. Anal. Bull. 2021;(2—1):92-99. [In Russ]. DOI: 10.25018/0236-1493-2021-21-0-92-99.

Issue number: 2
Year: 2021
Page number: 92-99
ISBN: 0236-1493
UDK: 622.235.6
DOI: 10.25018/0236-1493-2021-21-0-92-99
Article receipt date: 15.11.2020
Date of review receipt: 29.11.2020
Date of the editorial board′s decision on the article′s publishing: 01.02.2021
About authors:

Arkhipov I.A., postgraduate student of the Department of Safety and Ecology of Mining Industry, NUST«MISiS», Moscow, Russia, е-mail:

For contacts:

1. Wang G, Liu Z, Hu Y, Fan C, Wang W and Li J. Influence of gas migration on permeability of soft coalbed methane reservoirs under true triaxial stress conditions. R Soc Open Sci. 2019 Oct 2;6(10):190892. doi: 10.1098/rsos.190892.

2. Stierstorfer J., Wurzenberger M.H. H., Lommel M., Gruhne M.S., Szimhardt N. Refinement of Copper (II) Azide with 1-Alkyl-5H-Tetrazoles: Adaptable Energetic Complexes. WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim. 2020. DOI: 10.1002/ anie.202002823.

3. Slastunov S.V., Kolikov K.S., Zakharova A.A., Mazanik E.V. Selection of an effective technology for the degasification of coal beds. Solid Fuel Chemistry. 2015. Т. 49. no. 6. Pp. 381—386.

4. Lebedev V.S., Skopintseva O.V. Residual coalbed gas components: Composition, content, hazard. Gornyi Zhurnal. 2017, no. 4, pp. 84—86. [In Russ]. DOI: 10. 17580/gzh.2017.04.17.

5. Balovtsev S.V. Explosion safety procedure for working areas in coal mines. MIAB. Mining Inf. Anal. Bull. 2018, no. 11, pp. 218—226. DOI: 10.25018/0236-1493-2018-11-0218-226. [In Russ].

6. Ganova S.D., Skopintseva O.V., Isaev O.N. 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, Geo Assets Engineering. 2019, t. 330, no. 6, pp. 109—115. [In Russ].

7. Rukovodstvo po nailuchshey praktike effektivnoy degazatsii istochnikov metanovydeleniya i utilizatsii metana na ugol’nykh shakhtakh. Seriya publikatsiy YEEK po energetike [Guidelines for the best practice of effective degassing of methane emission sources and utilization of methane in coal mines. EEC publications series on energy]. 2016. no. 47. United Nations New York and Geneva, 134 p. [In Russ].

8. Zhilyakov E.G., Kabelko S.G. Matematicheskaya model’ razvala burovzryvnogo bloka i raspredeleniya soderzhaniya poleznogo komponenta vo vzorvannoy gornoy masse. Nauchnyye Vedomosti, Seriya Istoriya, Politologiya, Ekonomika, Informatika [A mathematical model of the collapse of the blasting unitand the distribution of the content of useful componentin the blasted rock mass. Scientific Bulletins, Series History, Political Science, Economics, Informatics]. 2010. no. 1 (72), 13/1, pp. 66—73. [In Russ].

9. Rybak L.V., Belyaev A.G., Nabiulin M.F., Efimov E.I. Innovative technology of drilling and blasting in Kuzbass. Izvestiya TulGU, Nauki o Zemle. 2017, no. 1, pp. 110—120. [In Russ].

10. Kulikova A.A., Sergeeva Yu. A., Ovchinnikova T.I., Khabarova E.I. Formation of mine water composition and analysis of treatment methods. MIAB. Mining Inf. Anal. Bull. 2020;(7):135—145. [In Russ]. DOI: 10.25018/0236—1493—2020—7-0—135—145.

11. Domanov V.P., Solentsov R.V. Safe usage and improvement prospects of preventative explosives for Kuzbass coal. Vestnik nauchnogo centra po bezopasnosti rabot v ugol’noj promyshlennosti. 2010, no. 1, pp. 121—124. [In Russ].

12. Balovtsev S.V., Skopintseva O.V., Kolikov K.S. Aerological risk management in designing, operation, closure and temporary shutdown of coal mines. MIAB. Mining Inf. Anal. Bull. 2020;(6):85—94. [In Russ]. DOI: 10.25018/0236-1493-2020-6-0-85-94.

13. Scot M., Anna M., Robert G., Otto P., Lori M., & Stefan S. China’s coal mine methane regulations have not curbed growing emissions. 2019. Doi: 10.1038/s41467-018-07891-7.

14. Amnache A., Omri M., Fréchette L. A silicon rectangular micro-orifice for gas flow measurement at moderate Reynolds numbers: design, fabrication and flow analyses, Microfluidics and Nanofluidics, Springer Verlag, 2018, 22 (6), DOI: ff10.1007/s10404—018—2077-x.

15. Melynda H., Thomas E., Pierre C., Vincent C., Jean-Pierre C., et al. Measuring emissions from livestock farming: greenhouse gases, ammonia and nitrogen oxides. INRAADEME, 2016, ISBN 2—7380—1392—9. ffhal-01567208.

16. Azatian V.V., Timerbulatov T.R., Shatirov S.V. Effektivnyye khimicheskiye metody upravleniya goreniyem, vzryvom i detonatsiyey gazov [Efficient chemical methods to control burning, explosion and gas detonation]. Vestnik nauchnogo centra po bezopasnosti rabot v ugol’noj promyshlennosti. 2012, no. 2, pp. 27—37. [In Russ].

Подписка на рассылку

Раз в месяц Вы будете получать информацию о новом номере журнала, новых книгах издательства, а также о конференциях, форумах и других профессиональных мероприятиях.