The Power Source for Coal and Gas Outburst

被引：8
|
作者：
Hong, Lin [1 ,2 ]
Gao, Dameng [1 ,2 ]
Wang, Jiren [1 ,2 ]
Zheng, Dan [1 ,2 ]
机构：
[1] Liaoning Tech Univ, Coll Safety Sci Engn, Fuxin 123000, Peoples R China
[2] Minist Educ, Key Lab Mine Thermodynam Disaster & Control, Huludao 125105, Peoples R China
来源：
JOURNAL OF MINING SCIENCE | 2019年 / 55卷 / 02期
基金：
中国国家自然科学基金;
关键词：
Coal and gas outburst; nitrogen adsorption experiment; Dubinin-Radushkevich equation; power source; micropore filling; adsorption of multilayer; NITROGEN ADSORPTION; SURFACE-AREA; PREDICTION; CARBON; DESORPTION; SORPTION;
D O I：
10.1134/S1062739119025515
中图分类号：
TD [矿业工程];
学科分类号：
0819 ;
摘要：
The experiments were carried out connected with nitrogen adsorption on coal samples. The aim was to find out the power source for coal and gas outburst. The experimental data were fitted by the function of f(x)=ax(b). The total volume of micropores and the degree of micropore volume filled by nitrogen were calculated by the Dubinin-Radushkevich equation. In unexploited coal body, the gas desorption occurs in a unit, it could trigger a desorption of the neighboring units of coal body. When it reaches a certain level that can push the coal body forward, the coal and gas outburst would happen. For materials containing micropores and mesopores, like coal, the inflection point was the demarcation point of micropore filling and adsorption of multilayer.
引用
收藏
页码：239 / 246
页数：8
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