Methods used in choosing axial flow fans for mining ventilation system are discussed.
通过理论分析和实例计算，对矿井轴流风机的选型计算方法进行了讨论。
Optimization of mining ventilation system has been one of the critical issues for coal mine's safe production, and should be solved by scientific and reasonable method.
矿井通风系统优化已经成为煤矿安全生产的一个关键问题，对其应有科学、合理的选择方法。
The application of new mining method is benefic to avoiding mutual effect between steeply inclined near coal seams, improving production ability and recovery, forming canonical ventilation system.
新型采煤法的实施有利于避免急斜近距煤层开采的相互影响，提高生产能力和采出率，形成规范的通风系统。
They are widely used in the ventilation and air conditioning system in mining and construction. They are a new alternative environment friendly product.
广泛应用于矿山、建筑的通风和中央空调工程，是新型的环保替代产品。
The practical verification showed that the evaluation index system would have the references to the safety management of the mine ventilation system in the old mining area.
实践验证表明，该评价指标体系对老矿区矿井通风系统安全管理具有借鉴意义。
The ventilation system provides a new method to realize the safe and efficient mining of high gas longwall mining with sublevel caving.
这一通风系统可为其他高瓦斯综放面安全高效开采提供了一条新的技术途径。
In the air condition system of the high temperature mine, the different ventilation modes would have an important influence to the comfortability and energy saving of the coal mining face environment.
在高温矿井空调系统中，不同的送风方式对工作面环境的舒适度和节能具有重要影响。
In the air condition system of the high temperature mine, the different ventilation modes would have an important influence to the comfortability and energy saving of the coal mining face environment.
在高温矿井空调系统中，不同的送风方式对工作面环境的舒适度和节能具有重要影响。
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