Selection of an effective technology for the degasification of coal beds

Slastunov, S.V.; Kolikov, K. S.; Захарова, А. А.; Mazanik, E.V.

doi:10.3103/s0361521915060117

Cited by 7 publications

(2 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Thus, the development of thick coal seams is of great importance for the Chinese economy. At the same time, when developing coal seams, a number of specific issues arise that require detailed consideration, including: the extraction coefficient, the risk of spontaneous combustion, ventilation, rockbursts, and others that are also typical for Russian conditions [3][4][5][6][7][8][9]. He Manchao, a member of the Chinese scientific academy, noted that the recovery rate when using the underground mining method in China is less than 50%, so the annual material damage from coal losses is huge for the country and can be up to two trillion yuan.…”

Section: Fig1 Percentage Of Energy Consumption In Chinamentioning

confidence: 99%

The evolution of thick coal seams mining methods in China

2020

View full text Add to dashboard Cite

The article is shown that the main methods used in China for coal mining from thick seams at the moment are two methods the Complex mechanized method of developing seams at their full capacity (used only in simple geological conditions and is an additional method for the following) and Complex mechanized mining method with coal production (which is used mainly, including in difficult conditions). Despite the fact that these methods have positively proven themselves over the years, their use has a number of significant drawbacks, including a low extraction rate, an increased risk of endogenous combustion and rock burst, and others. Currently, a promising way is a development method with a diagonal (cross-shaped) arrangement of drifts, which helps to eliminate many of the shortcomings of previous methods, including a low recovery coefficient, the risk of spontaneous combustion, the need to support the drift and others. It is expected that this method will be widely used for underground coal mining in deep mines in China with difficult mining and geological conditions.

show abstract

Section: Fig1 Percentage Of Energy Consumption In Chinamentioning

confidence: 99%

The evolution of thick coal seams mining methods in China

2020

View full text Add to dashboard Cite

show abstract

Section: Introductionmentioning

confidence: 99%

The evolution of thick coal seams mining methods in China

2020

View full text Add to dashboard Cite

The article is shown that the main methods used in China for coal mining from thick seams at the moment are two methods -the Complex mechanized method of developing seams at their full capacity (used only in simple geological conditions and is an additional method for the following) and Complex mechanized mining method with coal production (which is used mainly, including in difficult conditions). Despite the fact that these methods have positively proven themselves over the years, their use has a number of significant drawbacks, including a low extraction rate, an increased risk of endogenous combustion and rock burst, and others. Currently, a promising way is a development method with a diagonal (cross-shaped) arrangement of drifts, which helps to eliminate many of the shortcomings of previous methods, including a low recovery coefficient, the risk of spontaneous combustion, the need to support the drift and others. It is expected that this method will be widely used for underground coal mining in deep mines in China with difficult mining and geological conditions.

show abstract

Designing In-Seam Gas Drainage Technology Based on Hydrodynamic Approach

Ponizov¹

2020

IOP Conf. Ser.: Earth Environ. Sci.

View full text Add to dashboard Cite

The article presents science based technological solutions that are essential for the development of the country’s coal mining industry in terms of ensuring safety and efficiency of underground coal mining on the basis of improving in-seam gas drainage technologies using hydrodynamic impact on coal seams. Experimental work on the in-situ testing and approval of the new holistic technology was successfully done in the production panels 24-58, 24-58, 24-60 and 24-62 at the Kirova mine. That included underground hydrofracture of the working seam carried out from the development headings. High effectiveness of the proposed in-seam gas drainage technology was confirmed by effective methane extraction from the working coal seam, reduction of gas content in longwall faces and significant cut-down of equipment nonproductive time in areas covered by active in-seam gas drainage.

show abstract

Selection of an effective technology for the degasification of coal beds

Cited by 7 publications

References 0 publications

The evolution of thick coal seams mining methods in China

The evolution of thick coal seams mining methods in China

The evolution of thick coal seams mining methods in China

Designing In-Seam Gas Drainage Technology Based on Hydrodynamic Approach

Contact Info

Product

Resources

About