Mathematical model and its application of mine ventilation network optimization adjustment

In this paper, the conception and calculation formula about the minimal power consumption and the minimal adjustment quantity which satisfy the practical required airflow are presented, and the passageway about the minimal adjustment quantity that can be realized is presented. Consequently, the aim of optimization adjustment for ventilation network will be reached. By using this method to proceed the optimization adjustment for ventilation system of Ping Dingshan Twelve mine, without changing fan blade angle and any special shaft sinking and drifting to reduce resistance, the effective air quantity of mine can be increased 22.7m(3)/s, which satisfies production requirement.