Abstract：With the Micun mine as an example,the ventilation mode of Micun coal mine form two wing opposite angle type to central border type as the 210071 working face advancing,and ventilation system optimization must be optimized.Based on the determination of ventilation resistance and main ventilator performance technology,the main parameters of the ventilation system were investigated.Based on the main parameters,ventilation network optimization by VNT1.0 was published in Henan Polytechnic University.The results show that the main parameters meet the requirements of related regulations after the ventilation system was optimized,and that the ventilation system is safe,reliable and efficient to operate.

Keyword：ventilation system optimization;resistance determine;fan performance test;network optimization;