The Conceptual Fundamentals for the Functioning of the Mine Degasification System

Kurnosov, S.; Makeiev, S.; Novikov, L.; Konstantinova, I.

doi:10.30929/1995-0519.2018.6.79-85

Visnyk KrNU

2018

DOI: 10.30929/1995-0519.2018.6.79-85

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The Conceptual Fundamentals for the Functioning of the Mine Degasification System

S. Kurnosov¹,

S. Makeiev²,

L. Novikov³

et al.

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2021

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“…The experiments have confi rmed [5] that methane-air mixture transportation through the curved (both in the plan and in profi le) pipeline results in the greatest underpressure of the system and in the methane dilution in the mixture due to UDC 622.648: 621.867.7/.8…”

mentioning

confidence: 91%

Improving the capacity of mine degassing pipelines

Ширін¹,

Bartashevsky²,

Denyshchenko³

et al. 2021

Nauk. visn. nat. hirn. univ.

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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.

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mentioning

confidence: 91%

Improving the capacity of mine degassing pipelines

Ширін¹,

Bartashevsky²,

Denyshchenko³

et al. 2021

Nauk. visn. nat. hirn. univ.

View full text Add to dashboard Cite

show abstract

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The Conceptual Fundamentals for the Functioning of the Mine Degasification System

Cited by 1 publication

References 1 publication

Improving the capacity of mine degassing pipelines

Improving the capacity of mine degassing pipelines

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