| The safety production situation in the coal industry is still grim,and major disasters have occurred.Although China has achieved positive results in the protection of major disasters in coal,the overall construction of the prevention and protection system is not balanced,and more coal enterprises have not yet established a comprehensive disaster prevention and protection system.Among them,Datong coal mine Group has accumulated rich experience while constructing a major disaster prevention system for coal mines.Therefore,it is of great significance to summarize the advanced work experience of China's excellent coal enterprises and promote them in the coal industry.In this dissertation,theoretical analysis,numerical calculation and other methods,combined with the actual situation are used to study the construction and application of the major disaster prevention and security system of Datong coal mine Group.Through the analysis of the development of major coal disasters and their prevention and protectionThe research on the disaster-prone environment and its major disaster types in the same coal,explore the major coal mine disasters and causes,and lay a theoretical foundation for the study of the "172 guarantee system" for the prevention of major coal disasters.On the basis of theoretical analysis and actual investigation of major coal disaster prevention and protection work,the key links and components are summarized and summarized as "172 Guarantee System".Based on the "172 Guarantee System",the PDCA method was used to evaluate the "8·12" permeable accident in Yanzishan,and the accident tree model was used to explore the disasters and the actual situation of the coal in the past years.The research on the major disaster prevention and security system,and analyze and explore the evaluation results,the results show that the overall performance of the "172 Guarantee System" is good,and the components are superior and weak.In combination with the "8·12" flooding accident of Yanzishan,the paper studies the imperfections of the "172 security system" and some existing problems.The adaptability of the coal "172 Guarantee System" to the environment needs to be improved,the internal system needs to be further optimized,and the synergy between the elements needs to be enhanced.The problems between the elements are embodied as:the mutual influence and restriction between the elements,the degree of influence of the elements on the system,and the poor coordination among the elements.The specific problems in the 7 elements of the "172 Guarantee System":insufficient staff training,insufficient investment of funds,weak communication awareness of employees,poor communication channels,inadequate daily maintenance of equipment and technical training of employees.At the same time,there are also problems in the rescue of the"172 Security System",which is reflected in the lack of funds,the insuficient speed and strength of funds in actual rescue,and insufficient technical training for rescue workers within three years of service.Based on the grey theory,the coal mine and forecasting model predict the injury rate and the number of accidents of the same coal group in the same coal group.The same coal in the next three years,the number of injuries and the number of accidents will decline.Compared with historical data,thousands of people The injury rate and the number of accidents are at a better level of control.The optimization objectives and ideas,the planning design plan,the seven major protection plans and the rescue support link optimization plan of the major disaster support system of coal are clarified.Then the optimization process and optimization results are analyzed.The results show that the system works better,but still There are some problems that need constant improvement.There are 22 figures,156 tables and 128 references in the dissertation. |
PDF Full Text Request