Research On The Safety Assessment And Application Of The Mine Ventilation System

The mine ventilation system's safety assessment is a numerous and complicated decision-making system which combines qualitative and quantitative analysis, and includes many factors Interrelated and mutually constrained. It's very significant to carry out assessment of the mine ventilation system to the daily technical management of mine ventilation, the ventilation system optimization transformation and the mine safety production.On the basis of summarizing the development of mine ventilation system safety assessment, the mine ventilation system elementary theory and technology, through the analysis of characteristic, stability and reliability of mine ventilation system, used accident tree analytic method to determine 21 indexes which include five assessment criteria level, the ventilates the way rationality, the well ventilated network rationality, the mine pit loose stability, well ventilated dynamic system reliability, the ventilation system management and the facility standards, put the mine airflow stability in assessment index system, strengthened index system's objectivity and science. According to the research status of the assessment of mine ventilation system, choose the analytic hierarchy process and the fuzzy comprehensive assessment to analyze each influencing factor as well as to the whole ventilation system influencing importantce in assessment index system. With the foundation of assessment of mine ventilation system, analyzed stability and reliability of mine ventilation system, realized the qualitative and quantitative ideas of assessment.With the ventilation resistance project of the mine named liziya, carried on the actual and thorough investigation and study of the ventilation system, carried on the assessment using fuzzy comprehensive assessment combined the assessment index system proposed above, the results basically tallies with its actual situation, pointed out the superiority and inferior of this mine ventilation system overall conditions, for the question of ventilation system, provided reliable basis for transforming and the optimizing this mime ventilation system as well as the decision-making, at the same time, achieved the expected goal which the assessment results conforms to the objective reality.