gas coal

Changes in low temperature oxidation process of gas coal chemical base agglomerate

气煤的化学基团在低温氧化过程中的变化

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Research on prediction of creep collapsing time for uncovering gas coal plane

瓦斯煤层裸露面蠕变失稳的时间预测研究

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Many ventilation methods have adopted, but no one could bring gas coal dust under control entirely.

虽然采取了许多通风方法, 但是都不能彻底治理综掘工作面的瓦斯、煤尘.

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The summery of the results as follows: The influence of typical alkali and alkaline metals to the reactivity of coke from gas coal is lower than it from coking coal.

研究结果表明：添加碱金属、碱土金属对气煤焦炭反应性的影响小于对焦煤焦炭的影响。

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The cold mechanical strength almost not change under the optimal bulk density, while thermal property change a lot which is largely affected by coal. So, the coke of gas coal has a good cold strength, but thermal property is poor.

最佳堆密度下的焦炭冷态强度基本不变，而热性质变化较大，主要受煤质影响，所以气煤焦炭尽管有较好的冷态强度，但热态强度仍较差。

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