内蒙古哈尔乌素煤矿首采区煤层煤质特征及地质成因(1).pdf

工程硕士专业学位论文 内蒙古哈尔乌素煤矿首采区煤层煤质特征 及地质成因 Coal Quality Characteristics and Geological Origin of Coal Seam in the First MiningArea of Haerwusu Coal Mine, Inner Mongolia 作者刘爱兄 导师李明讲师 中国矿业大学 二零二〇年六月 万方数据 学位论文使用授权声明学位论文使用授权声明 本人完全了解中国矿业大学有关保留、使用学位论文的规定，同意本人所撰 写的学位论文的使用授权按照学校的管理规定处理 作为申请学位的条件之一， 学位论文著作权拥有者须授权所在学校拥有学位 论文的部分使用权，即①学校档案馆和图书馆有权保留学位论文的纸质版和电 子版，可以使用影印、缩印或扫描等复制手段保存和汇编学位论文；②为教学和 科研目的，学校档案馆和图书馆可以将公开的学位论文作为资料在档案馆、图书 馆等场所或在校园网上供校内师生阅读、浏览。另外，根据有关法规，同意中国 国家图书馆保存研究生学位论文。 （保密的学位论文在解密后适用本授权书）。 作者签名导师签名 2020 年 6 月 30 日2020 年 6 月 30 日 万方数据 中图分类号学校代码10290 UDC密级公开 中国矿业大学 工程硕士专业学位论文 内蒙古哈尔乌素煤矿首采区煤层煤质特征及地质 成因 Coal Quality Characteristics and Geological Origin of Coal Seam in the First MiningArea of Haerwusu Coal Mine, Inner Mongolia 作者刘爱兄导师李明 申请学位 工程硕士专业学位培养单位资源学院 学科专业地质工程研究方向矿井煤层地质 答辩委员会主席张谷春评 阅 人 二零二〇年六月 万方数据 致谢致谢 光阴似箭，时光飞逝，转眼间研究生的生活即将结束。回首这三年的学习历 程，有辛酸，有快乐，有迷茫，有坚定。但无论怎样，我都要衷心的感谢我的家 人、老师和同学们对我的支持、鼓励和帮助，是你们让我走到了现在。 李明导师对我在学习和生活方面都给予了悉心照顾和指导， 他的无微不至的 关怀、谆谆教诲、渊博的学识、高尚的品德，让我终生难忘。另外我还要感谢姜 波教授、朱炎铭教授、傅雪海教授、韦重韬教授、郭英海教授、汪吉林教授、沈 玉林教授、申建教授、王继尧副教授、屈争辉副教授、兰凤娟博士等老师的精心 指导， 你们为人师表的的风范、 专业方面的造诣、 踏踏实实的工作作风令我钦佩， 感谢你们在对我的照顾和培养、在论文选题时给予的宝贵意见。 在此，特别感谢程国玺博士、朱猛硕士的支持和帮助，他们在进行样品的采 集，样品处理和基础实验研究也都给予了无私的支持和帮助，感谢你们辛苦的付 出，对论文的完成做出了巨大的贡献，在此表示深深的感谢 最后感谢各位评审专家在百忙之中对本论文进行评阅和指导 刘爱兄 2020 年 6 月于徐州 万方数据 I 摘摘要要 哈尔乌素煤矿煤层煤质特征是影响当前矿井开采设计的主要地质因素， 在区 域构造演化、含煤岩系沉积环境分析的基础上，进行主采煤层的煤层底板标高、 煤层厚度、煤层结构以及显微组分、灰分、硫分等煤质参数的系统统计分析，深 入探讨了不同煤层垂向与平面煤层赋存特征与煤质差异的地质控制作用。 研究表 明山西组 5 号煤层和太原组 6 号复煤层为研究区主采煤层， 各煤层整体上表现出 “北部厚南部薄、西部厚东部薄、薄厚相间分布，NNW 向带状展布”的厚度分布 规律，煤层底板标高表现出“东高西低、Z 形展布、背斜成山、向斜成谷”的分布 特征，燕山期形成的 NE 向 A2背斜和 S1向斜发育主导着岩煤层的走向、倾向和 倾角的变化规律。5、6Ⅲ和 6Ⅳ号煤层有机显微煤岩组分以镜质组主，而 6I、6II、 6V和 6VI号煤层则以惰质组主，各煤层惰质组含量表现为“先降低、后增大、再 降低”的变化趋势，煤中惰质组含量明显高于华北聚煤盆地太原组的煤。硫分和 灰分的分布呈现出 NW 向条带状相间发育的规律，硫分含量显著低于华北聚煤 盆地太原组的煤，煤灰成分以 SiO2、Al2O3为主，属“高硅铝型”煤灰。加里东运 动造成的奥陶系顶部古侵蚀面形态以及研究区北部伊盟隆起与盆地北缘阴山造 山带隆起等区域构造控制着古地貌特征、海岸线位置和沉积格局，后期构造改造 主要造成煤层的弱褶皱弯曲变形以及煤层底板标高和埋藏深度的相应改变， 由于 整体构造变形较弱，后期构造改造未造成煤层厚度、煤体结构以及煤质的明显变 化。太原期在滨浅海潮坪-泻湖障壁体系下聚积了巨厚的泥炭层并形成了全区广 泛分布的 6 号巨厚煤层，山西期由于碎屑体系活跃、不利于泥炭沼泽的形成与发 展，聚煤作用减弱。6 号煤镜质组含量较低，反映了成煤期相对干燥，主要形成 于相对干燥的弱覆水森林沼泽，5 号煤层形成于相对潮湿的浅覆水森林沼泽。区 域上从盆缘到盆内覆水加深、还原作用加强，凝胶化作用加强而使得镜质组含量 增多，惰质组减少。 该论文有图 45 幅，表 9 个，参考文献 84 篇。 关键词哈尔乌素煤矿；煤层；煤质；煤层厚度；成煤环境关键词哈尔乌素煤矿；煤层；煤质；煤层厚度；成煤环境 万方数据 II Abstract The Haerwusu coal mine of Coal Seams and Coal Quality Characteristics is the main geological factor that affects current mine mining extraction design . Based on the analysis of regional structural evolution and Coal-bearing deposits environment, conducting systematic statistical analysis of elevation of coal seam floor, coal thickness, coal seam structure and quality parameters such as micro-composition, ash content and sulfur content of the main coal seams. Discussed deeply on coal bed storage feature of vertical and plane in different coal seams, and geological control action of differences from coal quality . The research shows that the coal seam No. 5 of Shanxi ation and No. 6 complex coal seam of Taiyuan ation are The main working bed coal seams in the study area, and each coal seam shows the distribution characteristics of “thick in the north and thin in the south, thick in the west and thin in the east, Thin and thick alternate in distribution, and band-like distribution in NNW direction“ as a whole. The elevation of seam floor shows the distribution characteristics of “high in the east and low in the west, Z-shaped distribution, anticline into mountains, and syncline into valleys“. The NE-directed A2 anticline and S1 syncline ed during the Yanshanian period dominatedthe variation law of strike, inclination and inclination of rock seam. The organic maceral components of No. 5, 6Ⅲand 6IV coal seams are dominated by vitrinite group, while No. 6I, 6II, 6V and 6VI coal seams are dominated byinertinite. The content of inertinite groups in each seam shows a variation tendency of “lower first, then enlargement, and then decrease“. The content of inertinite group in the coal is significantly higher than that of Taiyuan ation coal in the North China coal-ccumulating basin. The distribution of sulfur content and ash content shows the rule of NW strip-shaped interphase development. The sulfur content is significantly lower than that of Taiyuan ation coal of the North China coal-accumulating basin, the composition of coal ash is mainly SiO2and Al2O3, which belongs to “high silicon aluminum type“ coal ash. The morphology of the ancient erosion surface at the top of the Ordovician caused by the Caledonian movement, regional structure like the uplift of the Yimeng uplift in the northern part of the study area and the uplift of the Yinshan orogenic belt in the northern margin of the basin and so on control the paleogeomorphology, coastline location and sedimentary pattern. Later structural reconstruction mainly caused the weak fold bending deation of the coal seam and the corresponding changes in the elevation offloor and burial depth of the seams. 万方数据 III Due to the whole construct deation is weak , the later structural reationdid not cause by significant changes in coal thickness, coal seam structure and coal quality of the coal seam. A very thick peat layer was aggregated under Waterfront Shallwo Sea Tide Flat-Lagoon Barrier system in the Taiyuan period and widely developed huge thick seam No. 6 in the whole area. Due to the active detrital system in the Shanxi period, which is not conducive to the ation and development of peat swamps, coal aggregated has weakened. The vitrinite groups content of seam No.6 is relatively low, reflecting the relatively dry coal ation period, which is mainly ed in relatively dry and weak water-covered forest marshes environment, seam No.5 is ed in a shallow cloak water forest swamp environment. The covering water in the region is deepened from thebasin margin to inner basin, the reduction is strengthened, and the gelation is strengthened, which increases the content of the vitreous groups and decreases the inert groups. This paper has 45 pictures, 8 tables, 84 reference articles. Keywordshaerwusu; coal seam; coal quality; coal seam thickness; coal-ing environment 万方数据 IV 目目录录 摘摘要要............................................................................................................................ I 目目录录..........................................................................................................................IV 图清单图清单...................................................................................................................... VIII 表清单表清单...........................................................................................................................X 1 绪论绪论............................................................................................................................1 1.1 选题背景及意义.....................................................................................................1 1.2 国内外研究现状.....................................................................................................2 1.3 存在问题.................................................................................................................5 1.4 研究内容及技术路线.............................................................................................5 1.5 论文主要工作量.....................................................................................................6 2 地质概况地质概况....................................................................................................................8 2.1 区位与交通.............................................................................................................8 2.2 地层及含煤地层.....................................................................................................8 2.3 区域构造背景及其演化.......................................................................................12 2.4 含煤岩系沉积环境...............................................................................................21 2.5 井田构造...............................................................................................................22 3 煤层赋存特征煤层赋存特征..........................................................................................................23 3.1 煤岩层对比...........................................................................................................23 3.2 主采煤层厚度特征...............................................................................................26 3.3 煤层底板标高.......................................................................................................34 3.4 小结.......................................................................................................................40 4 煤质特征煤质特征..................................................................................................................41 4.1 物理性质...............................................................................................................41 4.2 煤岩学特征...........................................................................................................41 4.3 煤的化学性质.......................................................................................................43 4.4 工艺性能...............................................................................................................55 4.5 煤类.......................................................................................................................57 4.6 小结.......................................................................................................................57 5 煤层煤质地质成因煤层煤质地质成因..................................................................................................59 5.1 构造影响...............................................................................................................59 5.2 沉积环境影响.......................................................................................................60 万方数据 V 5.3 成煤环境影响.......................................................................................................63 5.4 小结.......................................................................................................................64 6 结论结论..........................................................................................................................65 参考文献参考文献......................................................................................................................67 作者简历作者简历......................................................................................................................72 学位论文原创性声明学位论文原创性声明..................................................................................................73 学位论文数据集学位论文数据集..........................................................................................................74 万方数据 VI Contents Abstract........................................................................................................................Ⅱ Contents......................................................................................................................Ⅵ List of Figures..........................................................................................................Ⅷ List of tables.................................................................................................................Ⅹ 1 Introduction............................................................................................................... 1 1.1 Rearch Background and Significance...................................................................... 1 1.2 Current Research Status........................................................................................... 2 1.3 Existing Problems.....................................................................................................5 1.4 Main Research Contents...........................................................................................5 1.5 Quantity of Task.......................................................................................................6 2 Geological Setting......................................................................................................8 2.1 Location and Traffic.................................................................................................8 2.2 Stratum and Coal-bearing Strata.............................................................................. 8 2.3 Characteristics and Evolution of Regional Structure.............................................12 2.4 Sedimentary Environment of Coal-Bearing Rock Series.......................................21 2.5 Structural Characteristics of Coal Mine.................................................................22 3 Occurrence Characteristics of Coal Seam............................................................ 23 3.1 Coal-rock correlation..............................................................................................23 3.2 Occurrence Characteristics of Coal Seam..............................................................26 3.3 Coal seam floor elevation.......................................................................................34 3.4 Summary................................................................................................................ 40 4 Coal quality..............................................................................................................41 4.1 Physical properties of coal ....................................................................................41 4.2 Characteristics of microlithology...........................................................................41 4.3 Chemical properties of coal....................................................................................43 4.4 Process preance...............................................................................................55 4.5 Coal........................................................................................................................ 57 4.6 Summary................................................................................................................ 57 5 Coal seam coal geological ation......................................................................59 万方数据 VII 5.1 Structural influence................................................................................................ 59 5.2 Impact of depositional environment.......................................................................60 5.3 Coal-ing environment influence.....................................................................63 5.4 Summary................................................................................................................ 64 6 Conclusion................................................................................................................65 References........................................................................................错误未定义书签。错误未定义书签。 Author