Study On Remote Real-time Lifting Effect Monitoring Of Underground Mine

Non-pillar Sublevel Caving Method is a safe and efficient mining method,which is widely used in underground iron mines at home and abroad.In the process of Non-pillar Sublevel Caving Method,the shovel efficiency is directly related to the optimization of stope structure parameters and production costs of mines,it is of great significance for mine production to improve the efficiency of shovel loading.In the past production process,the manual monitoring method is often used to monitor the caving efficiency in stop of Non-pillar Sublevel Caving Method,it is difficult and comprehensive to evaluation and research on shovel efficiency.However,it is possible to constantly monitor the shovel efficiency,with the development of information technology and sensor technology.In view of the existing problems of shovel efficiency monitoring of Non-pillar Sublevel Caving Method,on the basis of literature review,video collection with sensor technology,internet technology and modern computer technology,developed a set of Non-pillar Sublevel Caving Method shovel efficiency constantly monitored system device,which has been successfully applied in Yanqianshan Iron Mine.The system can monitor the whole process of shovel remotely,such as the number of shovel loading,the shovel loading time,and the processing time of the large block in the shovel process.The three step of blasting distance test in Yanqianshan Iron Mine by using the system,perfect the concept of loading efficiency.The data of large processing time,single shovel efficiency and total shovel efficiency are obtained.The data collected by the system are analyzed and processed by the SPSS statistical analysis software,and on the basis of this,the parameters of the stope structure are optimized.Through the above research,the results are as follows:1.A real-time monitoring system for shoveling efficiency of non-pillar sublevel caving method has been developed by using modern video acquisition sensor technology,internet technology and computer technology.It has been successfully applied in Yanqianshan iron mine.The application results show that the system has high reliability and practicability,and can obtain the comprehensive data of the loading process for real-time.2.The efficiency of shovel loading is improved,and the efficiency of the shovel loading is taken into consideration after the improvement of the efficiency of the shovel,the interference of unrelated factors,such as human factors,was excluded,the improved shovel efficiency is the ratio between the number of shovel's loading and the sum of the time of shovel's loading and bulk processing time,the improved concept of shovel efficiency can more comprehensively and objectively react to the process of shoveling.3.The loading efficiency of three caving slices was studied by the test,the experimental results show that the optimal shovel efficiency is 60.84(time/h),and the corresponding structural parameters are: sublevel height is 18 m,distance between the drawdrift is 20 m and the caving slice is 1.6 m.In the loading process,the single shovel efficiency showed a downward trend with loading,the main factors affecting the shovel efficiency are the time of shoveling and the time to deal with the bulk,sometimes the bulk processing time is a large proportion of the total shovel time,which has a great influence on the efficiency of the shovel loading.The research has important guiding significance for improving the efficiency of the non-pillar sublevel caving method,improving the structural parameters,strengthening the scientific management and improving the economic benefits of the mine.