Mine Ventilation Resistance Evaluation and System Optimization Analysis
Based on the measurement of base point barometer,the ventilation resistance of each air point in coal mine is obtained.Then,four secondary indexes and 11 tertiary indexes are selected to construct the evaluation system of ventilation system.The evaluation results show that the original ventilation system is reliable as a whole.In order to weaken the influence of equipment reliability and environmental operation reliability on the ventilation system,the ventilation optimization scheme of extending the return airway to the boundary of the mine field is proposed.The optimized ventilation scheme is feasible and the ventilation effect is good,which ensures the smooth mining of the working face.
NETL
NSTL
万方数据
