Mine ventilation is very important for the safety of coal mine production. Therefore,measures must be taken to ensure the effectiveness of mine ventilation. With the advancement of intelligent coal mine,the mine ventilation system is also developing. Combined with the actual situation,the function of intelligent ventilation and real-time monitoring system of mines was analyzed. The construction of intelligent ventilation system not only realizes the intelligent adjustment of fan operation parameters,but also realizes the unmanned duty of coal mines.
With the progress of science and technology,the electromechanical automatic centralized control in coal mines has been widely used,which brings great convenience to coal mine production,promotes the high quality and high efficiency development of coal mines,and ensures the overall development level of enterprises improved.The development status and prospect of the electromechanical automatic centralized control in coal mines was mainly introduced,the functions of the electromechanical automatic centralized control in coal mines was focused on,and the application of the electromechanical automatic centralized control in coal mines in production environment detection,mine monitoring and operation of electromechanical equipment was discussed.
Acid Mine Drainage ( AMD) is hard to treat due to large capacity of drainage, low pH value, high salinity and complicated component.The recent treatment technology of AMD at home and abroad was summarized.The methods for treatment AMD had neutralization precipitation, ferrite precipitation, adsorption, wetland, microorganism method, and so on.Several major treatment technologies were reviewed by pointing out their advantages and disadvantages.Moreover, the future and the development trend were prospected.
矿柱参数的合理设置对煤下铝土矿安全高效开发利用至关重要.以山西娄烦铝矿Ⅲ号铝土矿矿体开采系统为工程背景,通过理论分析和数值模拟相结合的研究方法,对铝土矿矿柱参数进行合理设计分析.研究结果表明:房柱法开采煤下铝土矿时,合理设置矿柱参数可在实现保护煤层的同时高效开发铝土矿资源;随着矿柱宽度和间距的增大,矿柱承载应力及顶板位移量增大.研究结果可用于铝土矿矿柱尺寸设计,探究矿柱尺寸与矿柱应力分布的关系,能为山西省铝土矿高效开发利用提供理论支撑.
目前国内外对地热地质理论、勘探与评价的研究相对滞后于地热能开发利用的需要.基于岩心实验分析数据,对太原盆地西温庄地热田碳酸盐岩储层分别进行了岩性、物性、电性及含水性与储热性之间的关系分析.研究表明,膏岩是碳酸盐岩地热储层的优势岩性;裂缝发育对于提升碳酸盐岩储层渗透率至关重要;声波时差与热导率和热扩散率呈负相关,与比热容呈正相关;在开采前期可动流体饱和度大的储层出水量大,但随着热导率和热扩散率的降低和比热容的增大,储层温度汇聚作用减弱,在地热开发时一定要注意储层的热恢复周期和注采平衡.
