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Improving the capacity of mine degassing pipelines

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Category: Content №6 2021

Last Updated on 29 December 2021

Published on 30 November -0001

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Authors:

L.N.Shirin, orcid.org/0000-0002-1778-904X, Dnipro University of Technology, Dnipro, Ukraine, e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.

S.E.Bartashevsky, orcid.org/0000-0002-5008-9387, Dnipro University of Technology, Dnipro, Ukraine, e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.

O.V.Denyshchenko, orcid.org/0000-0002-4011-5422, Dnipro University of Technology, Dnipro, Ukraine, e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.

R.R.Yegorchenko, orcid.org/0000-0002-8526-1167, Dnipro University of Technology, Dnipro, Ukraine, e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.

повний текст / full article

Naukovyi Visnyk Natsionalnoho Hirnychoho Universytetu. 2021, (6): 072 - 076

https://doi.org/10.33271/nvngu/2021-6/072

Abstract:

Purpose. To identify features of methane-air mixture flow within the steel degassing pipelines as well as within those ones made of composite materials, to develop engineering solutions improving their reliability for actual use.

Methodology. To solve the problem of increasing the capacity of mine degassing pipelines, an analysis of fundamental studies on the physical and mechanical properties of mine methane and the processes of its recovery in a mine environment is conducted. Schemes of operating gas-transmission systems and peculiarities of functioning of zonal vacuum gas pipelines in the conditions of intensive removal of rocks of the bottom of underground workings and deformations of the massif are considered. Based on the results of expert assessment of production situations, potential reserves for enhancing the efficiency of in-mine gas pipelines have been determined. Reliability indicators of traditionally applied steel pipes and their analogues from composite materials used abroad are established, innovative technological and technical solutions for their construction at Ukrainian mines are recommended.

Findings. According to the expert evaluation of the operation modes of mine degassing lines and analysis of the world practices to apply pipes made of composite materials for mining industry, an engineering solution concerning the improvement of operating degassing systems as well as their capacity has been substantiated.

Originality. Innovative engineering solutions as for the modernization of the underground degassing systems, which allow increasing the capacity of mine pipelines, and provide maintaining of the quality the captured methane-air mixture in the process of its transportation from wells to vacuum pump stations, have been substantiated.

Practical value. Implementation of the research results to decrease hydraulic resistance within the degassing mains as well as introduction of innovative engineering solutions for the construction of main degassing pipelines from long links of composite pipes with a minimum number of butt joints has been scheduled for Ukrainian mines dealing with the development of gassy coal seams.

Keywords: degassing, hydraulic resistance, condensation, underground vacuum pipeline, methane-air mixture, composite pipeline

References.

1. Sudakov, ., Dreus, A., Sudakov, D., & Khamininch, . (2018). The study of melting process of the new plugging material at thermomechanical isolation technology of permeable horizons of mine opening. E3S Web of Conferences, 60, 1-10. https://doi.org/10.1051/e3sconf/20186000027.

2. Sudakov, ., Dreus, A., Kuzin, Y., Sudakova, D., Ratov, B., & Khomenko, O. (2019). A thermomechanical technology of borehole wall isolation using a thermoplastic composite material. E3S Web of Conferences, 109, 00098. Essays of Mining Science and Practice. https://doi.org/10.1051/e3sconf/201910900098.

3. Bokiy, B.V., Bunko, T.V., Borovsky, A.V., & Novikov, L.A. (2016). Selection of rational ventilation schemes and methods of degassing of the developed space. Geotechnical mechanics: collection of scientific works, (127), 210-216. Retrieved from http://dspace.nbuv.gov.ua/handle/123456789/136941.

4. Mineev, S.P., Pimonenko, D.M., Novikov, L.A., & Slashchev,A.I. (2019). Some features of transportation and processing of methane-air mixture in coal mines. Collection of Scientific Papers of the National Mining University, 59, 98-107. https://doi.org/10.33271/crpnmu/59.098.

5. Kurnosov, S., Makeev, S., Novikov, L., & Konstantinova, I. (2018). Conceptual basis for the functioning of the mine degassing system. Proceedings of the Mikhail Ostrogradsky Kremenchug National University, 6(113), 79-85. https://doi.org/10.30929/1995-0519.2018.6.79-85.

6. Project rules for degassing in coal mines and exploitation of degassing systems: SU-P (2020). Ministry of Energy of Ukraine. Retrieved from http://mpe.kmu.gov.ua/minugol/control/uk/doccatalog/list?currDir=50043&documentList_stind=221.

7. Instructions for degassing coal mines (2019). Series 05. Issue. 22. Retrieved from https://www.skatbiot.ru/catalog/dokumenti-po-bezopasnosti-nadzornoy-i-razreshitelnoy-deyatelnosti-v-ugolnoy-promishlennosti/seriya-05-vipusk-22-instruktsiya-po-degazatsii-ugolnikh-shakht.

8. Mineev, S., Kocherga, V., Novikov, L., Gulai, A., & Bodnar, A. (2020). Basic requirements for the prevention of pollution and flooding of degassing gas pipelines and vacuum pumps. Collection of Scientific Papers of the National Mining University, 63, 37-48. https://doi.org/10.33271/crpnmu/63.037.

9. Vanchin, A.G. (2014). Methods for calculating the mode of operation of complex main gas pipelines. Electronic scientific journal Oil and Gas Business, (4), 192-214. https://doi.org/10.17122/ogbus-2014-4-192-214.

10. Malashkina, V.A. (2015). Investigation of factors affecting the quality of methane-air mixture supplied from wells to the surface of a coal mine through a gas pipeline made of composite material. Mining information and analytical bulletin, 234-241. Retrieved from

https://giab-online.ru/files/Data/2015/08/234-241_8_2015.pdf.

11. Wilkins, J. (2016). Qualification of Composite Pipe. Offshore Technology Conference, Houston, Texas, USA. https://doi.org/10.4043/27179-MS.

12. Novikov, L.A., & Bokiy, A.B. (2019). Calculation of degassing networks taking into account the accumulation of liquid phase. International Conference Essays on Mining Science and Practice, (109), 7. https://doi.org/10.1051/e3sconf/201910900063.

13. Bartashevskyi, S.Ye., Denischenko, O.V., & Yegorchenko, R.R. (2021). Methods of delivery of the degassing pipeline to the mine. (Ukrainian Patent No. 145962). Retrieved from https://base.uipv.org/searchINV/search.php?action=search.

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