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我国瓦斯煤矿的局部通风技术,长期以来存在的问题是:局部扇风机(以下简称“局扇”)的品种单一,且能耗高效率低、噪声高压头低,特别是在瓦斯环境中运转时,在《煤矿安全规程》制约下,致使通风方式不合理等。其关键在于现沿用的局扇技术落后,适应不了瓦斯煤矿的特殊条件,致使不合理的压入式通风方式一直得不到改变。这就严重的影响了工作。
For a long time, the local ventilation technology of gas coal mines in our country has a long history of problems: a single type of local fan (hereinafter referred to as “fan”) has a single species with low energy consumption and high noise head, especially when operating in gas environment , Under the “Coal Mine Safety Regulations” constraints, resulting in unreasonable ventilation and so on. The key lies in the current technology behind the Board fans, can not adapt to the special conditions of gas coal mines, resulting in irrational push-in ventilation has not been changed. This has a serious impact on the work.