摘要
以宋家营井田7^(#)和12^(#)煤主采煤层为研究对象,对两层煤的煤岩煤质特征进行了对比研究。结果表明,宋家营井田主采煤层为气煤;7^(#)和12^(#)煤煤层均以镜质组为主、惰质组次之,无机组分以黏土类为主,次为硫化铁类、碳酸盐类和氧化硅类。7^(#)煤水分、灰分、挥发分均高于12^(#)煤,发热量低于12^(#)煤,说明12^(#)煤中杂质含量更少,发热量更高。综合分析表明,12^(#)煤比7^(#)煤煤化程度更高,杂质更少。
Taking the main mining coal seams of No.7 and No.12 coal in Songjiaying mine field as the research object,and conducts a comparative study on the coal petrology and coal quality characteristics of the two layers of coal.The results indicate that the main coal seam in the Songjiaying mine field is gas coal;the No.7 and No.12 coal seams are mainly composed of vitrinite,followed by inertinite,and the inorganic components are mainly clay,followed by iron sulfide,carbonate,and silicon oxide.The moisture,ash,and volatile matter of No.7 coal are higher than that of No.12 coal,and the calorific value is lower than that of No.12 coal,indicating that the impurity content in No.12 coal is lower and the calorific value is higher.Comprehensive analysis shows that No.12 coal has a higher degree of coalification and fewer impurities than No.7 coal.
作者
骈炜
童健活
陈中山
王红红
PIAN Wei;TONG Jianhuo;CHEN Zhongshan;WANG Honghong(Geological Survey Team of Hebei Coalfield Geological Bureau(Hebei Coal Underground Gasification Research Center),Xingtai 054000,China)
出处
《煤炭技术》
CAS
2024年第7期145-148,共4页
Coal Technology
关键词
宋家营
煤岩
煤质
有机元素
Songjiaying
coal petrology
coal quality
organic elements
