鸡西煤田合作煤矿区煤质特征及受控因素分析
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摘要
根据鸡西煤田合作煤矿区钻孔可采煤层的工业分析、硫分和灰成分分析数据,评价了矿区煤质特征,在此基础上重点讨论了煤中灰成分与成煤环境、母岩性质的关系。研究表明,合作矿区煤以特低水分含量、中灰产率和高挥发分产率为特征,总体属高挥发分A烟煤。煤中硫含量(<1.0%)并结合灰成分指数,表明煤形成于淡水弱还原的沼泽环境,此时物源供给较为充分。母岩指标Al_2O_3/TiO_2指示源区源岩主要由中酸性组分岩石组成。
Based on the proximate analysis, sulfur and ash composition data, this study evaluates the coal quality and discusses the relationship between ash composition and coal-forming environment, and parent rock. These results indicate that the investigated coals are characterized by special-low moisture contents, intermediate ash yields and high volatile yields, identified as a high-volatile A bituminous.The sulfurcontents(<1.0%), combined with parameters of ash composition, suggests a fresh-water peat swamp with a relatively weak-reduction condition when terrigenous material input is relative abundant.The Al_2 O_3/TiO_2 ratio suggestsan intermediate-felsic composition for parent rocks.
Based on the proximate analysis, sulfur and ash composition data, this study evaluates the coal quality and discusses the relationship between ash composition and coal-forming environment, and parent rock. These results indicate that the investigated coals are characterized by special-low moisture contents, intermediate ash yields and high volatile yields, identified as a high-volatile A bituminous.The sulfurcontents(<1.0%), combined with parameters of ash composition, suggests a fresh-water peat swamp with a relatively weak-reduction condition when terrigenous material input is relative abundant.The Al_2 O_3/TiO_2 ratio suggestsan intermediate-felsic composition for parent rocks.
引文
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