高瓦斯煤层开采的新思路及待研究的主要问题

New Thinking About Exploitation of Coal Seams with High Gas Content and Main Problems to be Researched

提出了解决高瓦斯煤层开采的新思路 :在一个密闭的空间中实现瓦斯与煤同采 ,使采煤工作在一个即能密封又能开放的空间中进行 ;当采煤机械高速运行、瓦斯涌出量很大时 ,回采工作面上下巷道密闭 ,使回采工作空间的瓦斯浓度保持在 30 %以上 ,完全处于不能产生爆炸的环境中 ,使机械设备的效率能够得到充分发挥 ,实现高产高效高安全生产的目标 ;当工作面出现故障、必须停采处理时 ,打开工作面上下巷道的风门 ,恢复通风 .煤与瓦斯同采是高瓦斯煤层的一项全新的开采方式 ,需要对其主要问题进行深入的研究 .

A new thinking was put forward about exploitation of coal seams containing high content gas, i.e., in a sealed space, gas and coal are mined simultaneously, the sealed space can be turned to an open space when needed. When mining machinery is running speedily and gas emission is high, the return airway and haulage gateway of a working face are sealed in order to maintain over 30% gas concentration in the working space. In this case, gas explosion will not happen. Thus the efficiency of mining machinery can be promoted, and the target of high production, high efficiency and high safety can be achieved. When troubles occur in the working and the production must be stopped in order to handle the troubles, the sealed gates in the return airway and haulage gateway can be opened, the ventilation of the working face will be resumed. Simultaneous exploitation of coal and gas is a new method to coal seams containing high content gas. But the relative main problems must be researched deeply.