Abstract: In order to solve the high energy consumption and high pollution in the process of production in coal mine and reduce the cost ratio which is becoming higher because of the coal prices have fallen sharply. Using Comprehensive utilization of low temperature thermal energy technology to collect the low grade energy in the return air and drainage of the coal mine to replace the traditional coal-fired boiler and Refrigeration system is feasible. Calculation shows that the heat bump systems can meet the heat and cool loads of the mine. Further analysis give that about 11016 tons of standard coal can be saved per year, and about 28641 tons of CO2 and 220 tons of SO2 emission be reduced respectively at the same time. Payback period of investment of the heat bump system is about 1.4 years. Results indicated that the low temperature heat energy comprehensive utilization technology benefits the cost reduction and construction of green mining.

Key words: low temperature heat, heat pump technology, increasing the benefits cost reduction, green mining