Application of Pneumatic Refrigerator and Heat Sinking Vest in Mine Heat Damage Control

In view of the increasingly severe thermal damage in mine, we introduce and analyze the main measures to cool down the high-temperature in mine. A new type of pneumatic refrigerator is designed. The simulation results show that the refrigerating temperature can reach -18 ℃ and can be controlled automatically and mechanically. The combination of the refrigerator and heat sinking vest is applied to the heat damage in mine; it is safe intrinsically and low in price. The body temperature can be decreased directly; they will not suffer from heatstroke. So this method can ensure the safety in coal production and has wide application prospect.