Zobrazeno 1 - 10
of 2 005
pro vyhledávání: '"coal spontaneous combustion"'
Publikováno v:
Meikuang Anquan, Vol 55, Iss 11, Pp 108-119 (2024)
The problem of spontaneous combustion of coal left in the goaf poses a serious threat to coal mine safety, and the accurate positioning of its hidden ignition source is the key to effective governance. In order to accurately detect the location of th
Externí odkaz:
https://doaj.org/article/8f3d9b37e5cf4914ba6c067dde2e4074
Publikováno v:
Meikuang Anquan, Vol 55, Iss 11, Pp 1-18 (2024)
With the continuous exploitation of coal resources, the economic losses and casualties caused by coal spontaneous combustion have become increasingly prominent. It is of great significance to study the mechanism of coal spontaneous combustion, coping
Externí odkaz:
https://doaj.org/article/7092f363f8dc41eba29fca5d2c8b2bc6
Autor:
Peng YANG
Publikováno v:
Meikuang Anquan, Vol 55, Iss 11, Pp 120-129 (2024)
In order to study the effect of particle size on the thermodynamic characteristics and limiting parameters of coal spontaneous combustion, the oxidation process of coal samples of five different particle sizes (0-
Externí odkaz:
https://doaj.org/article/48ca056f36e041bc8f4c6c08030339de
Publikováno v:
Meikuang Anquan, Vol 55, Iss 11, Pp 19-27 (2024)
In order to study the effect of pH value of mine water on the spontaneous combustion characteristics of residual coal in goaf, long-flame coal from Pingdingshan Coal Mine was used to analyze the gas production law and heat flow curves of gas derived
Externí odkaz:
https://doaj.org/article/ae3f8f39c3bc428a8be7bcedbdcf52c9
Publikováno v:
Meitan xuebao, Vol 49, Iss 10, Pp 4336-4350 (2024)
In order to investigate the evolution characteristics of the key groups and their thermal effects under the effect of oxygen-depleted, the thermal reaction process of coal under different oxygen concentrations and the change law of its microscopic gr
Externí odkaz:
https://doaj.org/article/dc5b0de3cd414792ac3690d97372d830
Autor:
Xincheng Hu, Jiawen Cai, Zhaoyang Yu, Jianguo Liu, Shanyang Wei, Shengqiang Yang, Guangping Huang
Publikováno v:
Scientific Reports, Vol 14, Iss 1, Pp 1-20 (2024)
Abstract Traditional coal spontaneous combustion (CSC) inhibitors, while effective, have limitations such as frequent application or short-term efficacy. To this end, we developed a slow-release and water-soluble synergistic inhibitor (SWSI) to achie
Externí odkaz:
https://doaj.org/article/63a9d59167444ddf98484619354170b5
Autor:
En’si XUE
Publikováno v:
Meikuang Anquan, Vol 55, Iss 10, Pp 64-71 (2024)
In this paper, CaCl2 solution was used as an inhibitor. Raw coal was soaked in CaCl2 solution with a mass concentration of 20%, and inhibited coal samples were prepared at different temperature conditions (30 ℃, 50 ℃, 70 ℃ and 90 ℃) for diffe
Externí odkaz:
https://doaj.org/article/4fd9439eb66d4c4ca91205c9b74bdcb3
Publikováno v:
Journal of Rock Mechanics and Geotechnical Engineering, Vol 16, Iss 10, Pp 4141-4153 (2024)
In light of the escalating global energy imperatives, mining of challenging-to-access resources, such as steeply inclined extra-thick coal seams (SIEC), has emerged as one of the future trends within the domain of energy advancement. However, there i
Externí odkaz:
https://doaj.org/article/e0f0219237af4f898bc33344a78f2819
Publikováno v:
Meikuang Anquan, Vol 55, Iss 10, Pp 53-63 (2024)
In order to investigate the influence mechanism of temperature on the permeability of loose coal body in the process of spontaneous combustion of residual coal in the gob, the mathematical model of the permeability of coal body under different temper
Externí odkaz:
https://doaj.org/article/9defcfb9690544ccb87345d63735446b
Publikováno v:
Meikuang Anquan, Vol 55, Iss 9, Pp 100-109 (2024)
Fly ash grouting is a common method for mine fire prevention and control. Aiming at the problems of fly ash slurry which is prone to water-loss cracking, poor stability and low fire prevention efficiency, fly ash colloids were prepared by adding high
Externí odkaz:
https://doaj.org/article/137ace034c3d49089af6762acb4a8c87