Study And Optimization Scheme Of Complicated Ventilation Systemonâ„–2Coalmine In Chenghemine

Mine ventilation system occupies very important position in coal mine safetyproduction. The optimization of mine ventilation system can improve economic benefitsand social benefits. It is a complex decision-making problem that is made up of manyqualitative and quantitative factors. Safe reliability, tchnical fasibility and economicrationality are taken into consideration. Mine ventilation system is optimized that based onthe analysis of current situation.At first, this paper combines the problems of ventilation system in our country withthe complexity of the ventilation. Six kinds of optimization scheme is proposed, witchaccording to the ventilation system optimization design theory in view of the presentproblems of the mine. For six kinds of scheme for network calculating and three feasibilityschemes are obtained. Secondly, Established the evaluation index system of ventilation bytaking the safe reliability, tchnical fasibility and economic rationality as two grade indexevaluation based on the theory of safety evaluation. And use the G1method to calculate theweight of each index. Finally, using grey correlation analysis method to calculate thecorrelation degree, finally came to the scheme â…¢ is the optimal decision.The optimal solution is found out by combining optimal decision with gray relativeanalysis method. Ultimately achieve the optimization of ventilation system is schemeâ…¢.The correlation degree of scheme â…¢ is0.0710. At the same time, provides a newscientific method and theoretical basis for optimization of complex coal mine ventilation system that is similar to theâ„–2Coal Mine in Chenghe Mine.