Optimization Study Of Artificial Ice Mine Cooling System

As the shallow layer of coal resources are exhausting gradually in our country,the depth of the mine exploitation has been increased gradually and the number of high temperature hot against mine is increasing year by year.Mine thermal pollution influence the mine production safety seriously,must be governance.Mine thermal pollution governance in China started in the 1960 s,has been more than 50 years of development,the mine thermal pollution prevention and control theory and technology have made some achievements.Among them,the artificial ice mine cooling technology development in our country started relatively late,at present the technology theory system is imperfect,the system design method is not mature,causes our country has built artificial ice mine cooling system has high energy consumption and loss of large amount of cold and the high operation cost,the actual underground cooling effect is difficult to get the expected goal.In this paper,Based on a comprehensive analysis of the deep mine present situation heat environment and the causes of thermal pollution and thermal environment of artificial ice cooling technical characteristics,working principle and the existing system composition such as basis,the research on the system is optimized.The specific research contents and results as follows: The main heat source and its calculation method are analyzed,and the calculation formula of the wind temperature and the cooling capacity of the working face is given;Puts forward the structure model of artificial ice mine cooling system,the system of the research of each link in detail;Through the analysis of energy consumption and analysis of energy comparison,demonstrates the necessity of analyzing exergy ice making machine,and the ice making machine exergy analysis model is established;Using energy analysis model energy analysis was carried out on the ice making machine,reveals the parts of the ice machine to size distribution and the cause of the loss energy,pointed out the direction of energy saving operation of the ice making machine;Analysis of the mining work face two kinds of airflow cooling methods and its scope of application,by FLUENT numerical simulation and theoretical calculation method used to analyze a specific mining working face of airflow cooling methods,in order to ensure the air cooling effect of coal mining face based on to determine the the work surface should be the step cooling mode,andgives the specific air cooler arrangement.In this paper,the research will provide the reasonable application for artificial ice cooling technology in coal mine.