平顶山十二矿“采-选-充”一体化集成关键技术研究.pdf

学术型硕士论文 Key Technology of Integration of Coal Mining – Gangue Washing – Gob Backfilling at Ping Ding Shan Mine XII 平顶山平顶山十二矿十二矿“采“采- -选选- -充充”一体化集成关键”一体化集成关键技技 术术研究研究 作 者Gahejo Abro Abdul Sami 塞米 导 师张吉雄 教授 中国矿业大学 二〇一七年五月 万方数据 中图分类号 TD325 学校代码111111 10290_____ UDC 622 密 级111111 公开 111 中国矿业大学 学术型硕士学位论文 Key Technology of Integration of Coal Mining – Gangue Washing – Gob Backfilling at Ping Ding Shan Mine XII 平顶山十二矿“采平顶山十二矿“采- -选选- -充”一体化集成关键充”一体化集成关键 技术研究技术研究 作 者 Gahejo Abro Abdul Sami 导 师 张吉雄 1 申请学位 工程硕士 培养单位 矿业工程学院 1 学科专业 采矿工程 研究方向 绿色开采 1 答辩委员会主席 评 阅 人 111111111111111 二○○一七年五月 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）。 作者签名作者签名 导师签名导师签名 年年 月月 日日 年年 月月 日日 万方数据 论文审阅认定书论文审阅认定书 研究生 Gahejo Abro Abdul Sami 在规定的学习年限内，按照研究生培养方案的要 求，完成了研究生课程的学习，成绩合格；在我的指导下完成本学位论文,经审阅，论 文中的观点、数据、表述和结构为我所认同，论文撰写格式符合学校的相关规定，同 意将本论文作为学位申请论文送专家评审。 导师签字 年 月 日 万方数据 Acknowledgments I would like to express my deepest and heartily thanks and great indebtedness and gratitude to my supervisor Prof. Zhang Jixiong for his kind supervision, guidance, valuable advice, reviewing the manuscript and support during my study. I would also like to thank my other advisors Dr. Zhang Qiang, and Dr. Zhou Nan, for their supervision. I extend my heartily thanks to Mr. DEON Makavelo Germain, Mr. Ma Hui Salah and Dr. Deng Xue Jie for their help in the final draft of this thesis. I would like to acknowledge all my colleagues especially Mr. Muhammad Jawad Sajid for their continuous moral support. I extend my special and heartily thanks and gratitude to Chinese Scholarship Council CSC, Government of China for awarding me fully funded scholarship to do Masters Degree in Mining Engineering, Department of Mining Engineering. Finally, I am indebted to my sister Dr. Ghulam Zainab Abro, my parents and all family members for giving me the moral support and prayers to complete this work 万方数据 I Abstract The traditional full roof caving , large-scale mining caused by including surface subsidence, gangue discharge, various ecological and environmental problems have become increasingly prominent, in addition with the mining of coal resources, coal mine more and more related to the “three” mining under buildings, railways, water the problem of coal in recent years. Here, by the comprehensive mechanical developed by China University of Mining and Technology of solid filling coal mining technology has successfully solved the problem and achieved good economic and social benefits. But the underground coal gangue mixed still need to ascend to the ground after washing by feeding well transported to filling working face. In view of this, this paper put forward coal mining – gangue washing – gob backfilling integration the mode of production, Research s of theoretical analysis, numerical simulation and industrial experiments were used to explain the connotation of this integrated mining technology, to research system arrangement and process design, and to analysis type selection design principle and structural perance of key devices. The main research results achieved were as followings 1 This paper has revealed the connotation of this integrated mining technology, provided perfect integrated system, established a new production model, and provided basis for the implementation and development of the mining technology which integrated coal mining, gangue separation and solid backfilling. 2 Production abilities of mining system, gangue washing system and backfilling system were reasonable matched, as well as the key influence factor be analyzed. As a conclusion, the key technical parameters of this integrated mining technology were optimized. 3 From the simulation results of the construction process, the support structure can significantly change the stress distribution of the surrounding rock. In the support structure, the stress concentration range of the surrounding rock is smaller and of displacement distribution with support is slightly changed and reduced, into the top of the road near the bottom of 160mm, two move closer to 81mm, the simulation results show that the downside is on it is effective to increase the stability of the surrounding rock of the large chamber and ensure the quality of the roadway. 4 Solving the problem of environmental pollution caused by coal gangue ground discharge flow, realize the effective separation and separation of underground coal gangue gangue transport channel, space filling and filling equipment and fully mechanized face cohesion, directly through 万方数据 II the washing after washing system in underground goaf filling coal gangue flow, solve the environment pollution caused by coal gangue ground with the destruction of the problem, alleviate the deep buried km mine auxiliary transportation pressure, saving auxiliary transportation cost, realize the underground coal mining–gangue washing–gob backfilling integration of the production system orderly, efficient, safe production. Keywords solid backfill mining; green mining; coal mining–gangue washing–gob backfilling integration; separation of coal and gangue underground 万方数据 III 摘要摘要 采用传统的全部垮落法管理顶板，大规模开采后带来的包括地表沉陷、矸石排放等 在内各种生态环境问题日益突出，此外随着煤炭资源的大量开采，越来越多的矿井涉及 到开采“三下”（建筑物下、铁路下、水体下）压煤问题。近年来，由中国矿业大学自 主研发的综合机械化固体充填采煤技术已成功解决上述问题并取得了良好的经济社会效 益。但井下原煤混矸仍需提升至地面经洗选后由投料井运送至充填工作面。鉴于此，本 论文提出煤矿井下采选充采一体化生产模式，文中采用理论分析、数值模拟、工业性实 验等研究方法，阐述了煤矿井下采选充采一体技术内涵，研究了采选充采一体化生产技 术的系统布置和工艺设计、分析了其关键技术设备的选型设计原则及其设备结构和性能。 取得主要研究成果如下 （1）揭示了煤矿井下采选充采一体化技术内涵，形成完善的煤矿井下采选充采一体 化系统，建立井下采选充采一体化生产模式，为井下采选充采一体化技术的实施与发展 提供依据。 （2）建立了井下采煤系统、分选系统和充填系统之间的生产能力合理配套关系，分 析了影响三大系统能力的关键因素，优化得到了井下采选充采一体化关键技术参数。 （3）从模拟结果来看，支撑结构可以显著改变周围岩石应力分布。 在支撑结构中， 周围岩石的应力集中范围较小，位移分布略有变化，为 160mm，巷帮移动距离接近 81mm， 模拟结果表明，增加硐室的支护可大大提高硐室内围岩的稳定性保证巷道的质 量。 （4）解决煤流矸石地面排放造成的环境污染问题，实现了井下煤矸有效分选及分选 矸石输送通道、充填空间和充填设备与综采工作面的衔接，煤流矸石直接经井下洗选系 统洗选后进行采空区充填，解决矸石地面排放造成的环境污染与破坏的问题，缓解了埋 深超千米矿井辅助运输压力，节约辅助运输成本，实现井下采选充采一体化各生产系统 的有序、高效、安全生产。 关键词关键词固体充填开采； 绿色开采； 采选充采一体化；井下煤矸分选 万方数据 IV Contents Abstract ............................................................................................................................................... I Contents ............................................................................................................................................ IV List of Figures ..................................................................................................................................III List of Tables .................................................................................................................................... VI 1 Introduction .................................................................................................................................... 1 1.1 Research Background and Significance .................................................................................. 1 1.2 Summary of Research Status Review at Home and Abroad .................................................. 6 1.3 Main Research Contents and ology........................................................................... 16 1.4 Expected Main Results ........................................................................................................... 18 2 Basic principles for Key Technology of Integration of Coal Mining – Gangue Washing – Gob Backfilling ................................................................................................................................ 19 2.1 Technology Connotation of Integration Separation and Backfilling in Coal Mining ....... 19 2.2 Key Technical of underground Mining-Gangue Washing-Gob Backfilling ........................ 21 2.3 Major Problems and Condition of Mine XII ......................................................................... 24 3 Design of Support in Underground Large Sectional Sorting Chamber .............................. 25 3.1 Sorting Cavern Design ............................................................................................................ 25 3.2 Model Building of Numerical Simulation ............................................................................. 29 3.3 Simulation Analysis of Large Sectional Sorting Chamber about Construction Sequence . 32 4. Equipments used in backfilling and coal gaunge separation ............................................... 42 4.1. Key Equipments used in Underground Backfilling ............................................................. 42 4.2 Equipments Used for Underground Separation.................................................................... 46 5. Engineering Application and Efficiency Analysis at Ping Ding Shan Mine XII............... 54 5.1 Lithology and Geological Conditions of the Area ................................................................ 54 5.2 System Arrangement of Integration Separation and Filling .............................................. 57 5.3 Underground Separation System at Mine XII ....................................................................... 61 5.4 Engineering Application Effects and Economic Benefit Analysis ....................................... 63 6. Main Conclusion ......................................................................................................................... 66 Author’s Resume ............................................................................................................................. 68 References......................................................................................................................................... 69 万方数据 V Original Statement of Disertation ................................................................................................ 77 Disertation Data Set ........................................................................................................................ 78 万方数据 I 目目 录录 摘要摘要 ...................................................................................................................................................... I 目录目录..................................................................................................................................................... V 图清单图清单 ...............................................................................................................................................III 表清单表清单 ............................................................................................................................................... VI 1.绪论绪论 .................................................................................................................................................. 1 1.1 研究背景与意义 ....................................................................................................................... 1 1.2 国内外研究现状 ....................................................................................................................... 6 1.3 研究内容与技术路线 ............................................................................................................. 16 1.4 预期成果.................................................................................................................................. 18 2 采选充采一体化技术原理采选充采一体化技术原理 ........................................................................................................... 19 2.1 井下采选充采一体化技术内涵 ............................................................................................ 19 2.2 井下采选充采一体化技术关键 ............................................................................................ 21 2.3 平煤十二矿技术难点 ............................................................................................................. 24 3 井下大断面洗选洞室支护设计井下大断面洗选洞室支护设计................................................................................................... 25 3.1 大洞室支护设计 ..................................................................................................................... 25 3.2 数值模型的建立 ..................................................................................................................... 29 3.3 模拟结果分析 ......................................................................................................................... 32 4 井下采选充采一体化关键设备井下采选充采一体化关键设备................................................................................................... 42 4.1 充填采煤关键设备 ................................................................................................................. 42 4.2 井下煤矸分选关键设备......................................................................................................... 46 5 工程应用工程应用 ........................................................................................................................................ 54 5.1 矿井概况.................................................................................................................................. 54 5.2 采选充采系统布置 ................................................................................................................. 57 5.3 井下洗选系统 ......................................................................................................................... 61 5.4 应用效果分析 ......................................................................................................................... 63 6 主要结论主要结论 ........................................................................................................................................ 66 参考文献参考文献 ........................................................................................................................................... 68 作者简历作者简历 ........................................................................................................................................... 69 万方数据 II 论文原创性声明论文原创性声明 ............................................................................................................................... 77 学位论文数据集学位论文数据集 ............................................................................................................................... 78 万方数据 III List of Figures 图序号 图名称 页码 Figure 1-1 Children’s hospital affected by underground mine subsidence in Oppenheim, Germany 1 图 1-1 受德国奥本海姆地下矿井沉陷影响的儿童医院 1 Figure 1-2