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利用瓦斯吸附解吸实验系统,对平煤一矿1/3焦煤和赵庄矿贫煤进行了瓦斯吸附解吸实验,分析了不同煤阶煤样瓦斯压力、瓦斯含量与钻屑瓦斯解吸指标相互之间的关系,得出平煤一矿1/3焦煤的突出瓦斯含量临界值为5 m~3/t,赵庄矿贫煤为8 m~3/t。并通过现场验证,确定所得到的突出瓦斯含量临界值是可靠的。
Gas adsorption and desorption experiment system was used to study the gas adsorption and desorption experiments on the 1/3 coking coal of Pingdingshan Mine and the lean coal of Zhaozhuang Mine. The gas pressure and gas content of coal samples with different coal rank and gas desorption index , The critical gas content of 1/3 coking coal in Pingdingshan First Coal Mine is 5 m ~ 3 / t and that of Zhaozhuang Mine is 8 m ~ 3 / t. And through on-site verification, to determine the critical value of the outstanding gas content is reliable.