A STUDY OF THE EXPLOSIVE PROPERTIES OF COAL DUST OF DIFFERENT DEGREES OF METAMORPHISM

被引：0
|
作者：
Abiev, Z. A. [1 ]
Rodionov, V. A. [2 ]
Zhiharev, S. Ya. [3 ]
Pikhkonen, P. V. [2 ]
机构：
[1] St Petersburg Min Univ, St Petersburg, Russia
[2] St Petersburg Univ State Fire Serv, Minist Emergency Situat Russian Federat, St Petersburg, Russia
[3] Russian Sci Acad, Min Inst, Ural Branch, Perm, Russia
来源：
PROCEEDINGS OF THE TULA STATES UNIVERSITY-SCIENCES OF EARTH | 2018年 / 1卷
关键词：
explosion; coal dust; explosion pressure; combustion; deflagration; detonation;
D O I：
暂无
中图分类号：
P [天文学、地球科学];
学科分类号：
07 ;
摘要：
The results of experimental studies of the explosive properties of the formed hybrid mixtures of coal dust, low dispersion and air are discussed. The study involved samples of coal of different metamorphic grade, taken from the mines deep deposits of the Kuznetsk coal basin. The dynamics of ignition of the mixed air with particles of coal dust, depending on the dispersion and concentration of dust. Experimental data on the change in explosive hybrid mixtures (coal dust + air) depending on the degree of metamorphism of coal and the concentration of coal dust in the 20 l sphere (working chamber) installation. The most dangerous explosive characteristics of the fraction of pulverized coal, which will continue studies related to the assessment of the impact of deterrents and/or inhibitor of suppression of the explosion parameters in the working space of the coal mine shaft and developing an effective composition for this purpose.
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页码：73 / 82
页数：10
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