The mine main fan is the major energy-consuming equipment in coal mining,and in our coal mines,the running efficiency of the main fans is generally low. Under the circumstance of energy saving and emission reduction,it is imperative to improve the running efficiency of mine main fans. To counter the situation that the actual running efficiency of the mine main fans is generally low,this paper analyzed the major causes that affect the energy saving and efficient operation of the mine main fans according to the practical application and proposed the corresponding solutions.%煤矿主通风机是煤矿开采主要耗能设备，但我国煤矿主通风机运行效率普遍较低，在节能减排大形势下，提高煤矿主通风机运行效率是势在必行的。针对煤矿主通风机实际运行效率低的普遍状况，从理论和实际应用中分析了影响煤矿主通风机节能高效运行的主要原因，并提出相应解决方案。
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