Literature analysis of coal gangue resource utilization based on VOSviewer

WANG Yuxuan; YUAN Xue; ZHANG Ruifang; WANG Xinxin; LI Xuguang

Abstract：The resource utilization of coal gangue is the research focus and hot spot of comprehensive utilization technology and industry of industrial solid waste.In this paper,the research literature on coal gangue in the Web of Science database and China HowNet database from 1995 to 2022 is taken as the research object,and the annual publication volume,national publication volume,authors and research hotspots are analyzed by using VOSviewer1.6.18 software,so as to explore the research achievements and development trends in the field of coal gangue.The results show that:from the quantitative characteristics of literature,the number of periodical papers is on the rise;Judging from the number of national papers,China and Australia are the main countries in the field of coal gangue research;From the analysis of disciplines,it can be seen that the research on coal gangue in the international scope mainly focuses on engineering research,while the research in this field in China focuses on industrial research and environmental science resources;From the analysis of thematic hotspots,it can be seen that the hotspots in the field of coal gangue research are mainly ecological and social benefits.In addition,this paper also summarizes the current application of coal gangue in land reclamation,treatment and reclamation;Produce fertilizer and improve fertilizer efficiency;Improve soil and fertility;Used as building materials to save coal;The application of power generation and heating,energy storage and utilization,and the problems existing in the process of resource utilization of coal gangue are analyzed.Finally,the optimization strategy of coal gangue resource utilization is put forward to promote the effective development and improve the utilization rate of coal gangue resource.