Realization of low-carbon technology path of coal mine heat source under the “Double Carbon” policy

Abstract

In order to make full use of the return air waste heat in the coal mine production process and provide a “0” carbon emission heat source selection technology path. The heat source of the wind well site in Baijiaqu was reconstructured, from the coal-fired boiler to the heat pump system to the heat pipe system. The advantages and disadvantages were analyzed, cost and applicability of these three heat source systems were analyzed. The carbon emission of the heat source system of the reconstructed Baijiaqu mine is reduced from 9 576 t/a to 1 180 t/a to the final “0”. This indicates that the use of heat pipe heat exchange technology can meet the requirements of energy conservation and emission reduction, a technology that can achieve nearly “0” carbon emissions. Therefore, the use of heat pipe heat exchange technology in the coal mine wind well site to recover the return air waste heat is the best choice.

Keywords

• heat source
• heat pump
• heat pipe
• technology roadmap
• low carbon