Simulation and Engineering Practice of the Mine Ventilation and Refrigeration Engineering in a Hot Mine Based on the Assistance of Ventsim

With the depletion of shallow coal resources, coal mining is gradually moving towards deep areas, and mine adverse weather conditions have become a serious problem faced by coal mining. In order to effectively solve the problem of adverse weather conditions in high-temperature mines, this study conducts research on the prevention and control technology of adverse weather conditions in high-temperature mines. Firstly, a three-dimensional model of the mining face and roadway was established using the 3D simulation software Ventsim. Then, the simulated temperature and airflow velocity were compared with the on-site measured data, and the results were basically consistent. Secondly, in response to the problem of heat damage in high-temperature mines, starting from three ventilation and cooling methods: adding return air shafts, developing parallel roadways, and adding refrigeration units, the temperature and airflow velocity of the mining face in the mine were studied, and the optimal heat damage treatment plan for the mine was ultimately determined, and the treatment effect after the implementation of the plan was simulated. This study provides theoretical support for the ventilation and cooling system of underground engineering.