| The mine ventilation system plays a very important role in the process of mine safety production, which making sure the ventilation system safe, stable, economic and reasonable. And it is the most effective, immediate and common means to prevent accidents of "One Ventilation and Three Prevention" in the mine. Through evaluating the ventilation system, it can discover the problems of the ventilation system, and timely conduct optimization and transformation of ventilation system to ensure that the ventilation system can meet the requirements of mine safety and prevent security incidents of the ventilation system.According to the actual situation and needs of Shanxi Luan pro-environment energy joint-stock company and aiming at Changcun coal mine's characteristic which is many ventilating shafts, large air flow, high gas and heavy resistance it establishes a complete set of evaluation system of Changcun coal mine ventilation system from a security, stable, economic and reasonable perspective. Combining Changcun mine ventilation system's romantic quality and air supply rationality study, Ventilation resistance against natural disasters study, ventilation power and economic rationality study, and the monitoring system of mine ventilation study, which includes 40 index. It applies various factors IAHP to confirm the weight of indicators and combine the index membership degree formation comprehensive evaluation method. By building a comprehensive evaluation model of mine ventilation system it makes a comprehensive evaluation of the mine ventilation system, the evaluation results is the secondary and the level is reliable. It finds out the problems existed in the ventilation system and puts forward the improvement measures in the process of Changcun coal mine ventilation system evaluation. The evaluation method achieves good results after applying in the Changcun coal mine and enhances the overall level of Changcun coal mine ventilation system. |
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