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Justification of rational methods for provision of air to faces of operating coal mines of vietnam during deepening of mining

Записки Горного института
© Форпост Северо-Запад / Андрей Кучеренко

GEOECOLOGY AND OCCUPATIONAL HEALTH AND SAFETY

Semen Gendler, Doctor of Engineering Sciences, Professor, Saint-Petersburg Mining University, Russian Federation;

TKHE KHA NGUEN , Candidate of Engineering Sciences, Head of Department, Mining Vocational College, Viet Nam.

Abstract

Based on the analysis of the mining and geological conditions for developing coal deposits in Vietnam, the existing mining safety regulations, the application of methods for calculating the air supply of working and development faces using the methane factor and modern methods of mathematical modeling of the ventilation of mines threr was developed the procedure for analyzing the efficiency of air distribution management considering the proposed indicator - energy efficiency coefficient for ventilation systems, determined by the efficiency of air use and energy consumption. Relations have been obtained that determine the relationship between the aerodynamic resistance of negative regulators, the number of simultaneously developed working and development faces, the performance of main ventilation fans and the consumed electric power.

Keywords: coal mine; methane; methane content; methane emission; ventilation; gas mode; methane category; methane-bearing capacity forecast.

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Scientifiс periodical «Zapiski Gornogo Instituta / Journal of Mining Institute» has been published since 1907 as a periodical scientific and scientific-educational edition in Saint-Petersburg Mining University. The periodicity of publishing is 6 volumes per year.