摘要
介绍了我国煤矿开采回采率、原煤入选率和利用率"三率"调查结果。我国煤矿资源当年原煤产量2 493 959.4 kt。大型矿山数量占全国总数的8.00%,原煤产量占全国总量的60.71%。我国煤矿采区回采率为83.29%,原煤入选率为41.83%,视褐煤入选后原煤入选率为50.42%;调查矿山煤炭共伴生资源利用率平均值为30.21%。
The paper introduces results of a comprehensive investigation on coal mines all over China. Statistical data concerning mining recovery, processing recovery, utilization ratio were analyzed. total output of raw coal was about 2 493 959. 4 kt. Large scale coal mines were accounting for 8. 00% in all in China and production capacity was accounting for 60.71%. Ming recovery was 83.29% , the processing ratio of raw ore was 41. 83 % , if the lignite was processed the processing ratio of raw ore was 50. 42% ; the utilization ratio of associated minerals was 30. 2 1 % .
出处
《矿产保护与利用》
北大核心
2016年第5期5-10,共6页
Conservation and Utilization of Mineral Resources
基金
中国地质调查局地质矿产调查评价项目(1212011220930)
关键词
煤炭资源
调查评价
采区回采率
原煤入选率
利用率
coal resources
investigation
mining recovery
processing ratio
utilization ratio
