Abstract: Along with the increasing of total annual mining, some questions are emerging, such as the total volume air of north wing ventilation system is lacking, stope operation ventilation disorders. Combing with the exploration conditions and characteristics of the structure of mine, the ventilation ability of north wing main shafts, air distribution of middle working area, machine station setting, fan optimization selecting, ventilation structure setting are comprehensive researched. The reformation design scheme of north wing ventilation system is proposed and the reformation design scheme is simulation calculated so as to predict the ventilation effects.

Key words: Partition ventilation, Network Optimization, Machine station optimization, Simulation calculation