麻家梁矿各煤层煤质特征及其沉积环境分析  

Analysis of coal quality characteristics and sedimentary environment of each coal seam in Majialiang Coal Mine

作　　者：李杰 杜亮 Li Jie;Du Liang(Jinneng Holdings Coal Industry Group Zheneng Majialiang Coal Industry Co.,Ltd.,Shuozhou 036002,China)

机构地区：[1]晋能控股煤业集团浙能麻家梁煤业有限责任公司,山西朔州036002

出　　处：《煤炭与化工》2025年第4期124-128,共5页Coal and Chemical Industry

摘　　要：为了探讨石炭系太原组和二叠系山西组煤层的煤质特征及其成煤古环境,收集了麻家梁矿各煤层煤样,从煤样的煤岩特征、化学性质和工艺性能等方面进行分析研究。结果表明,4号、5号煤层煤样宏观煤岩类型以半暗型煤为主,其次为暗淡型煤,少量半亮型煤;6号、8号、9号煤层煤样宏观煤岩类型以半暗型煤为主,其次为半亮型煤,暗淡型煤少量;各煤层显微煤岩组分以镜质组及惰质组为主,其次为半镜质组和壳质组。各煤层为中灰、高挥发分煤,4号煤层为低硫煤,5号、9号煤层为中硫煤,6号煤层为中高硫煤,8号煤层为高硫煤。分析各煤层煤质特征判定8号、6号和9号煤层为水进过程,其成煤环境为受海水影响的泥潭沼泽的强还原性环境;5号和4号煤层为水退过程,其成煤环境为陆相沼泽的弱还原环境。为今后朔南矿区其他井田的煤层煤质分析、开采和综合利用煤炭资源提供理论依据。In order to explore the coal quality characteristics and coal-forming paleoenvironment of the Carboniferous Taiyuan Formation and Permian Shanxi Formation coal seams,the coal samples of each coal seam in Majialiang Mine were collected and analyzed from the aspects of coal petrographic characteristics,chemical properties and technological properties.The results show that the macroscopic coal rock types of coal samples from No.4 and No.5 coal seams are mainly semi-dark coal,followed by dim coal and a small amount of semi-bright coal.The macroscopic coal rock types of coal samples in No.6,No.8 and No.9 coal seams are mainly semi-dark coal,followed by semi-bright coal,and a small amount of dim coal.The macerals of each coal seam are mainly vitrinite and inertinite,followed by semi-vitrinite and exinite.Each coal seam is medium ash and high volatile coal,No.4 coal seam is low sulfur coal,No.5 and No.9 coal seams are medium sulfur coal,No.6 coal seam is medium high sulfur coal,and No.8 coal seam is high sulfur coal.By analyzing the coal quality characteristics of each coal seam,it is determined that the No.8,No.6 and No.9 coal seams are water-entering processes,and their coal-forming environment is a strong reducing environment of mire and swamp affected by seawater;the No.5 and No.4 coal seams are in the process of water regression,and the coal-forming environment is a weak reduction environment of continental swamp.It provides a theoretical basis for coal quality analysis,mining and comprehensive utilization of coal resources in other mine fields in Shuonan mining area in the future.

关 键 词：煤层 煤质特征 工业分析 元素分析 成煤环境 

分 类 号：P618[天文地球—矿床学]