采取均压通风进行瓦斯防治

掘进巷道贯通老硐时,特别是贯通无法预先探明瓦斯情况和预先进行瓦斯处理的老硐时,易导致瓦斯涌出异常,本文从实践中总结出了上述情况下利用均压通风进行瓦斯防治的有效措施,包括减小掘进巷道和被贯通巷道中的风流压力差、在掘进巷道中增设调节风窗来增加掘进迎头风流的空气压力等。

Adoption of even pressure ventilation in case of gas prevention and treatment

When the driving roadway is connected to the old caves, especially those old ones the gas conditions could not be explored and dealt with in advance, the gas easily tend to abnormal eruption. Drawing from experience, the effective measures to proof and treat gas by use of even pressure ventilation is summed up, including measures such as decreasing the wind flow pressure difference between the advancing roadway and the connected roadway, adding the adjustable wind window in the advancing roadway to enhance the air pressure of the heading wind flow, etc.