中国矿山工程

With the fast and high-quality development of China’s national economy, the demand for mineral resources has grown rapidly. With thin air and low temperature all year round in plateau mining areas, the demand for heat due to downcast air preheating as well as production heating and domestic heating is high, with a high energy consumption. In this paper, Pulang Copper Mine is used as the test base. For the first time, the mine in the high altitude area adopts the ultra-low temperature air source heat pump unit for heat generation and heating, enabling energy efficient and environment-friendly heating of the mine. The upcast air from the mine contains a large amount of waste heat. The waste heat in the upcast air is recovered by the air source heat pump within the limit of one heating cycle. Compared with electric heating, the installation of waste heat recovery system for 3600 adit and 3700 upcast shaft helps save 1.48×106kW·h of electric energy per year, or 799,200 yuan of tariff per year. The installation of waste heat recovery system for 3850 adit and the south upcast shaft helps save 3.45×106kW·h of electric energy per year, or 1.863 million yuan of tariff per year.