随着开采深度的增加,越来越多的矿井面临工作面高温热害。高温热害不仅严重影响工人身心健康,而且由高温引起的采场围岩体热力学效应与顶板塌方和瓦斯爆炸紧密关联。基于此,首先总结深部开采热害治理技术的主要原理,提出热害治理设计步序。然后,在典型深井开采热害矿区(徐州矿区)开展热害治理现场试验,通过现场试验,得到以矿井涌水、矿井回风和地表水体为主要冷源的热害治理工艺流程及热力学平衡试验最优参数,为类似矿井开采热害治理提供理论依据。
With the deepening of mining depth, a growing number of coal mines are suffering from mining - induced heat disaster, seriously affecting the health of workers, and leading to thermodynamic effect of surrounding rock, which is closely related to the disasters of roof collapse and gas explosion in coal mining. The main principle of high temperature thermal disaster control was summarized and its design process was proposed. And through the field tests in Xuzhou mining area, a typical deep mine suffering from heat disaster, a heat disaster control process was proposed using mine inrush water, return air and surface water as main cold source, and the optimal parameter of thermodynamic equilibrium test was obtained.