用“U”系统通风墙顶闸门甲烷浓度预测分析。个案研究

IF 1.4 Q4 ENGINEERING, INDUSTRIAL
Zygmunt Łukaszczyk, H. Badura
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引用次数: 0

摘要

摘要甲烷释放到矿井大气中对矿工构成威胁。甲烷是一种爆炸性气体,在空气中的浓度按体积计为5-15%,在整个煤矿开采史上,甲烷一直是世界各地矿井毁灭性爆炸的原因。由于这些原因,在甲烷煤矿中,通过精心设计的通风系统、控制矿井大气中甲烷浓度的系统以及岩体和采空区甲烷排放系统来控制采煤工作面和整个矿井排放的甲烷浓度。本文涉及对给定一天甲烷平均浓度的预测,在位于长壁巷道中的传感器位置,从长壁排出的排出空气:壁前和巷道出口高达10m。这两个预测都是基于JSW SA一个长壁通风巷道的测量数据,使用预测方程进行的。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Analysis of Forecasted Methane Concentration at the Top Gate of a Wall Ventilated by Means of the “U” System. Case Study
Abstract The release of methane into the mine atmosphere poses a threat to the miners. Methane is an explosive gas at concentrations of 5-15% in air by volume and throughout the history of coal mining has been the cause of devastating explosions in mines around the world. For these reasons, in methane coal mines, the concentration of methane emitted from the coal face and the entire mine is controlled by means of a well-designed ventilation system, a system controlling the concentration of methane in the mine atmosphere and a system for methane drainage of the rock mass and goafs. The presented article concerns the forecast of the average concentration of methane on a given day, in the places of sensors located in the longwall roadways of discharge air exhausted from the longwall: up to 10 m in front of the wall and at the outlet of the roadway. Both forecasts were made using the prognostic equations on the basis of measurement data concerning the ventilation roadways of one of the longwalls at JSW SA.
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来源期刊
CiteScore
4.30
自引率
13.30%
发文量
48
审稿时长
10 weeks
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