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Review of the possibility of using basalt–plastic pipes for the degassing system of mines and mines

Ensuring the safety of workers in the mining industry is a top priority. Particular attention is paid to labor protection in the extraction of minerals by the mine method. This is due to the release and accumulation of flammable, explosive and harmful to human health gases released from the exposed rock layers. An actual way to solve this problem is to install a degassing system. This method provides for the placement of flue pipes in large numbers of wells with relatively large areas, and depends only on the technical parameters of the vacuum pumping station and the performance of the pipes. For such systems, it is promising to use pipes made of polymer composite materials (PCM). These materials have a light weight and a number of the following advantages: they are not destroyed by corrosion due to chemical inertness, they have high elastic-strength characteristics and a long service life. Based on the literature analysis, it was found that the elastic-strength characteristics of PCM based on basalt roving are higher than those of fiberglass. In this work, pipes were obtained from basalt plastic, with a diameter of 315 mm and a wall thickness of 6 and 12 mm. The conducted bending tests determined the tensile strength for pipes with a thickness of 6 mm — 500±12.5 MPa, for 12 mm — 438±11.0 MPa. Also, this type of material has increased tightness and strength for hydrostatic loading, and can withstand internal pressures up to 9—12 MPa.

Keywords: degassing, basalt plastics, basalt pipes, bending, hydrostatic loading, elasticstrength properties, CPF pipes, industrial safety.
For citation:

Kychkin A. К., Tuisov A. G., Kopyrin M. М. Review of the possibility of using basalt–plastic pipes for the degassing system of mines and mines. MIAB. Mining Inf. Anal. Bull. 2022;(5—2):136—144. [In Russ]. DOI: 10.25018/0236_1493_2022_52_0_136.

Acknowledgements:
Issue number: 5
Year: 2022
Page number: 136-144
ISBN: 0236-1493
UDK: 691.175.3
DOI: 10.25018/0236_1493_2022_52_0_136
Article receipt date: 01.10.2021
Date of review receipt: 28.03.2022
Date of the editorial board′s decision on the article′s publishing: 10.04.2022
About authors:

Kychkin A. K.1, Cand. Sci. (Eng.), leading researcher, http://orcid.org/0000-0002-5276- 5713, kychkinplasma@mail.ru;
Tuisov A. G., Cand. Sci. (Eng.), senior researcher, http://orcid.org/0000-0002-6819-1937, e-mail: tagg@rambler.ru
Kopyrin M.M., junior researcher, http://orcid.org/0000-0002-6018-6391, mkopyrin91@gmail.com;
1 FSBIS FRC «YSC SB RAS» IPTPN named after V. P. Larionov SB RAS, 677980, Yakutsk, st. Oktyabrskaya, 1, Russia;
2 FSBIS FRC «YSC SB RAS», 677000, Yakutsk, st. Petrovsky, d.2, Russia.

 

For contacts:

Kopyrin M. M., e-mail: mkopyrin91@gmail.com.

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