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根据《煤矿安全规程》第125条规定:“主要扇风机必须装有反风设备,必须在10分钟内改变巷道中的风流方向。当风流方向改变后,主要扇风机的供给风量不应小于正常风量的60%”。为了达到上述要求,我国普遍采用反风道型式的反风设备。但它具有明显的缺点。1)不仅建设费用高,而对于某些山区矿井,由于地形限制,反风绕道的开掘,在技术上十分困难。2)反风设备的各部件(包括反风门、滑轮、调节闸门等)多在井下和露天,成年
According to “Coal Mine Safety Regulations,” Article 125 states: “The main fan must be equipped with anti-wind equipment must be changed within 10 minutes the direction of the wind flow.When the wind direction changes, the main fan supply air flow should not be less than normal 60% of the air volume. ” In order to meet the above requirements, our country generally adopts the anti-wind equipment of anti-wind tunnel type. But it has obvious shortcomings. 1) Not only the construction cost is high, but for some mountainous mines, it is technically very difficult due to topographical restrictions and the digging of anti-wind detours. 2) the components of the anti-wind equipment (including anti-wind doors, pulleys, regulating gates, etc.) more in the underground and open air, adult