Abstract: Dahongshan Iron Mine belongs to the deep well mine and adopts the method of vertical shaft-inclined well-inclined ramp joint development.After the mine is broken through the sliding system,it is transported from the duct tape to the surface.Among them,the 6# drive station is affected by the heat dissipation of the motor,the cooling of the air-conditioning outside the distribution room,and the temperature of the local temperature and the temperature of the original rock,and the local temperature is too high.Therefore,in order to select suitable local cooling equipment for local heat source,The basic structure of mine cooling system is analyzed.Combined with the local ventilation scheme,the cooling capacity of the new air heat load and the heat dissipation of the equipment is calculated.After the equipment was implemented under the Dahongshan Iron Mine,the temperature of the dry ball in the chamber dropped by 6.2 ℃,and the temperature of the dry ball of the 5# duct tape in series with the chamber decreased by 55 ℃,and the worker's somatosensory temperature decreased significantly.The working environment has been effectively improved.The system has some generalization significance for the deep well mine during the development period.

Key words: Deep well mining, Refrigeration equipment, Thermal damage control, Local cooling