Abstract: Taking the Nihe iron ore as the research example, the Ventsim 3D ventilation software is adopted to simulation calculation on the temperature distribution situation of mine personnel activities centralized locations. The simulation results show that, the deep well operation temperature from May to October in every year are more than the limit values of some relative regulations. The simulation results of the artificial refrigeration effects show that, most of the deep well temperature can meet the requirements of some relative regulations by taking the artificial refrigeration steps. In order to reduce the production costs, the power refrigeration equipment can also meet the requirements of some relative regulations under the conditions of reducing the power of the refrigeration equipments from September to October.

Key words: Ventsim software, High temperature deep well deposit, Ventilation cooling