The Research On Deep And High Temperature Iron Mine Heat Hazard Control Technology

With the rapid development of our economy, the requirement of iron ore is growing more. But with the reserves of superficial ore deposit and underground ore deposit of easy mining constantly consumed in our country, the production of iron ore is less and less, and the proportion of imported iron ore is rising year by year. In order to break this situation, we must realize the deep mining of iron ore. But with the increasing of mining depth, heat hazard is becoming more and more serious, which causes serious damage to workers’ physical and mental health, and reduces the production efficiency. In order to ensure the healthy sustainable development of mining industry,we must research the corresponding heat hazard control measures.Firstly, this thesis summarizes the basic situation of the mine heat hazard research at home and abroad, has been clear about the existing problems and development direction in this field, and laid the research foundation.In order to effectively control heat hazard, this thesis firstly analyzes the deep and high temperature iron mine heat hazard condition, systematically research and calculate the various causes of heat hazard and the cooling load. Thesis comprehends conditions of deep iron mine, and researches the technical principle of the various heat hazard control methods, and makes the heat hazard control measures.According to the characteristics of cooling load in deep and high temperature iron mine, this thesis discusses the principle and adaptability of various heat hazard control scheme, and calculates method of the main parameters,which are given for different control scheme, and compares the advantages and disadvantages of different scheme from the point of view of energy saving and investment.In order to maximize energy savings, the suggestions of utilizing condensing heat of refrigeration system were put forward. And taking an example of a deep and high temperature iron mine, this thesis uses the Ventsim three-dimensional ventilation software calculating cooling load of mine, making the artificial refrigeration cooling system design, equipment selection, heat hazard control effect simulation and economic evaluation. The research conclusions of this thesis have certain reference value for engineering applications of the deep and high temperature iron mine heat hazard control technology.