1.National Engineering Research Center of Coal Mine Water Hazard Controlling,China University of Mining and Technology-Beijing;2.Key Laboratory of Mine Water Hazard Controlling,National Mine Safety Administration

Under the China’s dual carbon targets,the green and low-carbon development of the coal industry has be- come an urgent need for China’s energy revolution. It is an effective measure to eliminate the negative influence of water and heat hazards and actively stimulate and exert the potential positive effect of associated resources to realize sustainable green mining. Based on the characteristics of China’s coal resources,an intensive coal-water-thermal syn- ergistic mining mode is first proposed,and the connotation and basic synergy model are investigated. The integrated in- dustrial chain of mining resources production, supply and storage is established by controlling, utilizing and storing the companion resources in the whole life cycle. By elaborating the key technologies and scientific issues such as the efficient and accurate drainage of top plate water, seasonal aquifer energy storage, the efficient extraction and cascade utilization of low-enthalpy thermal energy,the in-situ mining of deep geothermal heat and the deep geolog- ical storage of mine water,a life cycle coal-water-thermal co-mining technology system with low-carbon zero-carbon in- tegration of coal mining as the core is proposed. In order to optimize the management of the system,the synergistic de- gree of optimized mining process and operation strategy is configured with the dual objectives of carbon emission and economy. Finally,taking the Xiaojihan Mine as an analysis case,based on genetic algorithm,the multi-objective alloca- tion optimization model of mining resources is preliminarily constructed,and the efficiency of energy saving and emis- sion reduction is evaluated. The results show that the annual energy saving rate can reach 50.2% by using the associat- ed wind / water resources of the Xiaojihan Mine,and the total carbon dioxide emission of production energy can be re- duced by 24.2%. By expanding the link replenishment role of associated resources in the comprehensive energy sys- tem to realize the positive conversion of mining negative effect, it has referential significance for the coal industry to help achieve the dual carbon targets.

曾一凡,刘晓秀,武强,等.双碳背景下“煤-水-热”正效协同共采理论与技术构想[J].煤炭学报,2023,48(2):538-550.
ZENG Yifan,LIU Xiaoxiu,WU Qiang,et al.Theory and technical conception of coal-water-thermal positive syner- gistic co-extraction under the dual carbon background[J].Journal of China Coal Society,2023,48(2):538-550.