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深井高温热害是深部煤炭资源开采过程中的严重灾害,高温不仅影响了围岩的力学性质,而且严重影响矿井生产安全。本研究针对国内外矿井降温技术存在的问题,提出了以矿井涌水作为冷源的深井开采高温热害控制HEMS(High Temperature Exchange Machinery System)技术,利用提取出的冷量与工作面高温空气进行换热作用,降低工作面的环境温度及湿度。该技术结合夹河矿深井降温工程,建成了国内第一个控制深井热害的深部科学与工程实验室(DUSEL)。系统运行结果表明,工作面温度降低4—6℃,最高温度控制在28—29℃以内,相对湿度降低5%—10%,极大改善了井下工作环境,热害控制效果显著,具有广阔的推广应用前景。
Deep well thermal damage is a serious disaster in deep mining of coal resources. High temperature not only affects the mechanical properties of surrounding rock, but also seriously affects mine production safety. In this paper, aiming at the existing problems of mine cooling technology at home and abroad, this paper proposed a high temperature and heat harm control (HEMS) technology using deep mine mining with gushing water as the cooling source. Using the extracted cooling capacity and high temperature air in the working face Thermal effect, reducing the working surface temperature and humidity. The technology combined with deep well cooling project in Jiahe Mine built the first Deep Science and Engineering Laboratory (DUSEL) in China to control thermal damage in deep wells. The results of system operation show that the working face temperature is reduced by 4-6 ℃, the maximum temperature is controlled within 28-29 ℃ and the relative humidity is decreased by 5% -10%, which greatly improves the underground working environment with remarkable effect of thermal damage control and has broad Promote the application prospects.