DYNAMICS OF OXYGEN CONCENTRATION IN THE DEVELOPMENT FACES OF COAL MINES

被引：0

作者：

Kachurin, A. N. ^{[1
]}

Afanasyev, O. A. ^{[1
]}

Stas, V. P. ^{[1
]}

机构：

[1] Tula State Univ, Tula, Russia

来源：

PROCEEDINGS OF THE TULA STATES UNIVERSITY-SCIENCES OF EARTH | 2020年 / 1卷

关键词：

oxygen; concentration; preparatory face; air; gas exchange; diffusion; coal seam; oxygen displacement; mathematical model;

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 existing regularities of the dynamics of oxygen concentration with a change in atmospheric pressure and a decrease in the oxygen concentration in the production faces due to its displacement from mine air by methane or dead air are clarified. Based on experimental and theoretical studies of oxygen diffusion in coal and its free-volume transport, the method for calculating the amount of air for ventilating preparatory faces has been improved.

引用

页码：415 / 422

页数：8