Stability Evaluation And Simulation Prediction Of Mine Ventilation System In Changcun Coal Mine

Mine ventilation system plays a very important role in the process of coal mine safety production.Scientific,reasonable,stable and reliable ventilation system is the most effective,direct and most commonly used method and means to prevent coal mines from "one pass and three defenses".Whether or not the mine ventilation system is stable in mine production is critical to mine safety production.To improve the stability of the mine ventilation system,firstly,through the comprehensive evaluation of the stability status of the mine ventilation system and propose improvement measures,the second is to increase the safety input to improve the ventilation system.In order to maximize the safety input revenue,it is necessary to predict and analyze the ventilation system after the safety input,and then reasonably adjust the proportion of resource input,and specifically improve the stability level of the mine ventilation system to avoid unreasonable use of resources.According to the actual situation of Changcun coal mine of Shanxi Luan pro-environment energy joint-stock company.,combined with the characteristics of windy wells,large air volume,high gas and large resistance in Changcun coal mine,a complete set of Changcun coal mine is established from the perspective of technology,safety and economy.Ventilation system stability evaluation index system.The evaluation index system includes the five factors that affect the stability of the mine ventilation environment,ventilation equipment,ventilation safety management,ventilation and disaster resistance and staff conditions.The weight of the indicators is determined by using the analytic hierarchy process,and the final ventilation system is formed by combining the mathematical theory of attributes.Stability comprehensive evaluation model.Through the construction of the comprehensive evaluation model of ventilation system stability,the stability of the ventilation system of Changcun coal mine was comprehensively evaluated,and the evaluation results were good and belonged to a relatively stable level.Based on the comprehensive evaluation of ventilation system,from the perspective of system dynamics,Vensim_PLE software is used to simulate and predict the stability level of ventilation system in Changcun coal mine in the next 2 years,and summarize its dynamic variation law.Through comparison and simulation analysis of different safety inputs,Changcun coal mine should focus on strengthening the investment in ventilation safety management.This simulation method can effectively draw the path to improve the stability of the ventilation system of Changcun coal mine,thus achieving reasonable optimization of resource allocation,which has guiding significance for the long-term safety development of Changcun coal mine.The paper has 18 pictures,41 tables,and 64 references.