Study On Heat Damage Of1000m Deep Mine And Its Prevention Technology In Yao Jia Shan

With the economic and living standard growth in the21st century China, the demand of the coal drove by economic development has been soaring year by year,Make mine average mining depth10～15m/a speed increase,increased mechanization and expansion call for a higher challenge on the depth of the coal drove mining well type. However, frequent thermal injury accident caused by deeper underground mining depth, leads to a negative impact on the ordinary mining production process. The main purposes of the research is to solve the difficulties of heat damage encountered during1000m deep mine production process, removing obstacles for mining efficiency.This thesis was based on the Lu An Yao Jia Shan kilometers mines as background--according to heat the thermal analysis and the theory of knowledge based on hazard control measures--to propose solutions for cooling the heat disaster area in mines. Firstly, separate and detailed studies on mine heat and heat exchange principle was provided, and secondly, mine thermal model and the model block were established and divided through the underground structure and parameters of the idea while a number of regional significance with representatives of feature points was selected. Lastly, by analyzing the heat of the feature points, airflow temperature calculation, and the chilling requirement of checking, we decided to implement a final decision suffering from the adverse effects of thermal drift of22106and22106coalface transport underground installation of centralized cooling solutions for the mobile air conditioning, and analyzed the measurement of cooling effect through spot verification. Via the examples of Lu An Yao Jia Shan1000m deep of cooling, mine specific implementation process cooling heat injury was showed as a total of eight the next steps, including heat damage to the mine to conduct research, collecting important data and parameters within the mine establish thermal calculation model, dividing the heat calculation module and selecting the feature points, calculating feature points to put the heat on temperature and air flow calculation, summarizing cooling heat damage area and select programs by chilling requirement to calculate and verify the feasibility of cooling solutions, as well as comparative analysis cooling effect.This thesis categorized the variety of heat damage control measures, analyzed advantages and disadvantages of various cooling methods, and summarized the scope of the various cooling measures.Generally, nowadays with the increase of mining depth, complication of geological conditions, heat injury means of governance should not be confined to single approach, a combination of targeted ventilation, ice-cooled and water-cooled cooling, heat control more prominent cooling should be required along with other localized cooling measures used together in order to achieve the ideal cooling effect. Along with the upgrade in science and technology, innovation in thermal damage measures, at the end of the thesis, a new modern underground elaborate cooling technology was illustrated, and in addition, cooling technologies for future mines was coming forward.Examples on Yao Jia Shan1000m deep cooling of thermal paper has fully validated calculation model and theoretical calculation of the actual work of guiding significance to cooling, heat disaster area cooling program, proposed a choice of calculation methods and theoretical basis, and provided a valuable reference for the future calculation of the thermal environment in other similar mines.