Results 31 to 40 of about 21,023 (226)

Prospects for the use of modern technological solutions in the flat-lying coal seams development, taking into account the danger of the formation of the places of its spontaneous combustion

Записки Горного института, 2021
Spontaneous combustion of coal remains an important problem for coal mines, which can lead to an explosion of methane and coal dust. Accidents associated with spontaneous combustion of coal can cause significant economic losses to coal mining companies ...
Vladimir P. Zubov, Dmitrii D. Golubev
doaj   +1 more source

Gas emissions, minerals, and tars associated with three coal fires, Powder River Basin, USA. [PDF]

, 2012
Ground-based surveys of three coal fires and airborne surveys of two of the fires were conducted near Sheridan, Wyoming. The fires occur in natural outcrops and in abandoned mines, all containing Paleocene-age subbituminous coals. Diffuse (carbon dioxide
Aggen, Kerry L, Blake, Donald R, Eatwell, Robert J, Emsbo-Mattingly, Stephen D, Engle, Mark A, Heffern, Edward L, Henke, Kevin R, Hower, James C, Hower, Judith M, Kolker, Allan, O'Keefe, Jennifer MK, Olea, Ricardo A, Prakash, Anupma, Queen, Gerald, Radke, Lawrence F, Román-Colón, Yomayra, Schroeder, Paul A, Smeltzer, Charles D, Stout, Scott A, Stracher, Glenn B, ter Schure, Arnout   +20 more
core   +1 more source

Research progress of underground coal fire disaster mechanism, thermodynamic evolution and thermal energy utilization

Meikuang Anquan
With the continuous exploitation of coal resources, the economic losses and casualties caused by coal spontaneous combustion have become increasingly prominent.
Yang XIAO, Erchuan ZHANG, Lan YIN, Xing LU, Jun DENG   +4 more
doaj   +1 more source

Study on spontaneous combustion characteristics of oxidized coal in re-mining coal seam

Meikuang Anquan, 2021
According to the current situation of spontaneous combustion of coal in the re-mining coal seam, the differences of spontaneous combustion characteristics of oxidized coal in Jinggezhuang Mine with four different re-mining times are analyzed.
ZHANG Yanfang, WANG Fusheng, WANG Jiantao
doaj   +1 more source

Study on calcium catalyzes coal spontaneous combustion

Fuel, 2022
Abstract Metal elements are good catalysts for oxidation reactions. In order to explore the influence of metal elements in coal on the reaction of organic matter in coal with oxygen, this paper studies the influence of the macro-element calcium in coal on the spontaneous combustion of coal.
Ling Qiao, Cunbao Deng, Bing Lu, Yansheng Wang, Xuefeng Wang, Hanzhong Deng, Xun Zhang   +6 more
openaire   +1 more source

Experimental Study of Pre-oxidation Effect on Limit Parameters of Coal Secondary Spontaneous Combustion

Meikuang Anquan, 2020
To study the effect of pre-oxidation on the limit parameters of coal spontaneous combustion, the primary oxidation and secondary oxidation processes of coal are simulated by the program heating device, the oxygen consumption rate, gas productivity ...
WANG Kai, HE Yunzhong, SHANG Bo
doaj   +1 more source

Precise prevention and control technology system of coal spontaneous combustion for Yanzhou Mining Area

Meikuang Anquan, 2022
Based on the characteristics and laws of coal spontaneous combustion in Yanzhou Mining Area, this paper studies the construction of accurate prevention and control system of coal spontaneous combustion, including the research on accurate fire prevention ...
WANG Hongquan, SONG Zhaoxue, CHEN Anming, JING Xiyin, ZHAO Qingshan   +4 more
doaj   +1 more source

Distribution Law of Spontaneous Combustion Danger Zone of Coal in Goaf Under Long Distance Extraction

Meikuang Anquan, 2020
For the special case above the working face of Tashan Coal Mine, the numerical simulation software was used to study the distribution of oxygen molar concentration in the goaf under different mining distances and different amounts of nitrogen injection ...
DU Yang, WENG Xuze, QI Xuyao, HAO Jianfeng, CHEN Ruifeng, CHEN Yuezhen
doaj   +1 more source

Study on coal spontaneous combustion characteristics and precise prevention and control technology for gob-side entry driving in Shaanxi and Inner Mongolia mining areas

Meikuang Anquan, 2022
Deep mining in Shaanxi and Inner Mongolia mining areas is characterized by high mine pressure and high degree of broken coal. Leaving narrow coal pillars is easy to cause side air leakage along goaf, and the coal left in the adjacent gob will undergo ...
WU Jianbin, LI Dong, ZHANG Yankuan, TUO Longlong, WU Mingming, SUN Fengrong   +5 more
doaj   +1 more source

The application for a prediction of the coal spontaneous ignition – Predisam [PDF]

, 2017
The article follows the research of the project number TA01020351 called "The research of possibilities when predicting steam origin and consequent spontaneous ignition of brown coal fuels" which was researched with the support of the Technological ...
Blata, Jan, Helebrant, František, Klouda, Petr, Moni, Vlastimil   +3 more
core   +2 more sources