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提高煤炭采出率的技术探索与实践.rar

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    提高 煤炭 采出率 技术 探索 实践
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    摘 要本设计包括三个部分:一般部分、专题部分和翻译部分。一般部分为兴隆庄煤矿1.2Mt/a 新井设计。兴隆庄煤矿位于山东省兖州市,交通便利。井田走向(东西)平均长约 4.3km,倾向(南北)平均长约 3.5km,井田总面积为 13.55Km2。主采煤层为 3 号煤,平均倾角为 4°,煤层平均总厚为 8.28m。井田地质条件较为简单。井田工业储量为 138.29Mt,矿井可采储量 85.10Mt。矿井服务年限为 54.5a,矿井正常涌水量为 400m3/h,最大涌水量为 650m3/h。矿井瓦斯涌出量低,为低瓦斯矿井。井田为立井单水平上下山开拓,划分为四个采区,两个采区;大巷布置在-320m 水平,采区采用上、下山开采方式,采区采用集中巷布置;工作面布置为综合机械化放顶煤;大巷采用胶带输送机运煤,辅助运输采用架线式电机车牵引矿车设备,主井采用箕斗提升,副井采用罐笼提升;矿井通风方式为两翼对角式通风;矿井年工作日为 330d,日提时间为 16h;工作制度为“三八”制。专题部分题目是提高煤炭采出率技术探索与实践为提升采出率并保护环境,文章介绍正常煤层赋存区的干净开采和“三下”煤层赋存区特殊开采时可供选择的几种采煤工艺。超长综放面煤层自燃火灾防治技术研究。在确定超长综放面煤层自燃危险区域的基础上,提出了有针对性、高效的综合防灭火技术体系,建立了超长综放面煤层自燃火灾快速应急防灭火系统,成功地对兴隆庄煤矿 4324 超长综放面煤层自燃火灾进行治理,为超长综放面的安全生产提供了重要的技术保障。翻译部分主要内容为高应力软岩下矿井巷道支护,英文题目为:Under high stress soft crag mine pit tunnel supports and protections。关键字:矿井设计;立井单水平;上下山开采;综合机械化采煤ABSTRACTThis design includes three parts: the general part,the projects section and translation part.The general part is a new design of Xinglongzhuang coal mine.Xinglongzhuang coal mine is located in YanZhouShi,ShanDong province,the transportation is convenient.The run of the minefield is 4.3 km,the width is about 3.5 km,the total area of mine field is about 13.55km2.The three is the main coal seam, and its dip angle is 4 degree. The thickness of the main coal seam is about 8.28m in all.The proved reserves of the minefield are 138.29 million tons. The recoverable reserves are 85.10 million tons.The designed productive capacity is 4.0 million tons percent year,and the service life of the mine is 55.4 years.The normal flow of the mine is 400m3 per hour and the max flow of the mine is 650 m3 per hour.Mine gas emission is low,for low gas mineral well.The mine field isshaft with single level developments,devided into fout mining districts, two strip districts.The main roadway arranges in - 370m level.The mining district uses rise and dip Type,the strip district uses main inclined drift.The working face adopts fully-mechanizedcoal mining technology with sublevel caving,The main roadway uses accordion conveyor to transport coal.The auxiliary transportion uses trolley locomotive hauling mine car equipment.The main shaft uses skip hoisting,the auxiliary uses cage hoisting.The Mine ventilation mode is two-wing diagonal type ventilation.The mine pit year working day is 330d, the work routine is “four-six”.The topic of the projects sectionisresearch on prevention and control of coal seam spontaneous combustion in the overlong fullymechanized longwall coal mining face.Base on the confirmation on the dangerous zone of seam spontaneous combustion in the overlong fullymechanized longwall coal mining face,the paper provided the related and high efficient comprehensive mine fireprevention and extinguishing technology system.A rapid emergency mine fire prevention and extinguishing system forseam spontaneous combustion fire disaster of the overlong fully mechanized longwall coal mining face wasestablished.Aseam spontaneous combustion fire disaster occurred in No. 4324 overlong fully mechanized longwall coal mining face wassuccessfully controlled,which would provide an important technical guarantee for the safety production of the overlongfully mechanized longwall coal mining face.The main content of the translation part is about the mine pit tunnel support and protectionunder high stress soft crag under.Keywords:The mine pit design; vertical shaftsingle level; updown a mountain mining;synthesis mechanization mining coal.目录一般部分1 矿区概述及井田地质特征 .................................................................................................11.1 矿区概述 ...................................................................................................................11.1.1 矿区地理位置 ................................................................................................11.1.2 矿区气候条件 ................................................................................................11.1.3 水文条件 ........................................................................................................21.1.4 自然地震 ........................................................................................................21.2 井田地质特征 ...........................................................................................................21.2.1 井田地质特征 ................................................................................................21.2.2 井田地质构造 ................................................................................................31.2.3 水文地质 ........................................................................................................51.3 煤层特征 ...................................................................................................................51.3.1 煤层埋藏条件 ................................................................................................51.3.2 煤层的围岩性质 ............................................................................................61.3.3 煤的特征 ........................................................................................................71.3.4 开采技术条件 ................................................................................................92 井田境界和储量 ...............................................................................................................102.1 井田境界 .................................................................................................................102.1.1 井田界限 ......................................................................................................102.1.2 井田尺寸及概况 ..........................................................................................102.2 矿井工业储量 .........................................................................................................112.2.1 井田勘探类型 ..............................................................................................112.2.2 矿井工业储量的计算及储量等级 ..............................................................112.3 矿井可采储量 .........................................................................................................132.3.1 矿井永久保护煤柱损失量 ..........................................................................132.3.2 矿井的可采储量 ..........................................................................................163 矿井工作制度、设计生产能力及服务年限 ...................................................................173.1 矿井工作制度 .........................................................................................................173.2 矿井设计能力及服务年限 .....................................................................................173.2.1 确定依据 ......................................................................................................173.2.2 确定矿井设计生产能力 ..............................................................................173.2.3 矿井服务年限 ..............................................................................................183.2.4 井型校核 ......................................................................................................194 井田开拓 ...........................................................................................................................204.1 井田开拓的基本问题 .............................................................................................204.1.1 确定井筒形式、数目、位置及坐标 ..........................................................204.1.2 工业场地的位置 ..........................................................................................214.1.3 采采区的划分 ..............................................................................................224.1.4 开采水平的确定 ..........................................................................................224.1.5 矿井开拓方案比较 ......................................................................................224.2 矿井基本巷道 ........................................................................................................264.2.1 井筒 ..............................................................................................................264.2.2 开拓巷道 ......................................................................................................304.2.3 井底车场及硐室 ..........................................................................................325 准备方式—— 采区巷道布置 ...........................................................................................345.1 煤层地质特征 .........................................................................................................345.1.1 采区位置 ......................................................................................................345.1.2 采区煤层特征 ..............................................................................................345.1.3 煤层顶底板岩石构造情况 ..........................................................................345.1.4 水文地质 ......................................................................................................345.1.5 地质构造 ......................................................................................................345.2 采区巷道布置及生产系统 .....................................................................................345.2.1 采区准备方式的确定 ..................................................................................345.2.2 采区巷道布置 ..............................................................................................355.2.3 采区生产系统 ..............................................................................................365.2.4 采区内巷道掘进方法 ..................................................................................365.2.5 采区生产能力及采出率 ..............................................................................365.3 采区车场选型设计 .................................................................................................376 采煤方法 ...........................................................................................................................396.1 采煤工艺方式 .........................................................................................................396.1.1 采区煤层特征及地质条件 ..........................................................................396.1.2 确定采煤工艺方式 ......................................................................................396.1.4 回采工作面破煤、装煤方式 ......................................................................406.1.5 回采工作面支护方式 ..................................................................................406.1.6 端头支护及超前支护方式 ..........................................................................466.1.7 各工艺过程注意事项 ..................................................................................466.1.8 回采工作面正规循环作业 ..........................................................................486.2 回采巷道布置 .........................................................................................................516.2.1 回采巷道布置方式 ......................................................................................516.2.2 回采巷道参数 ..............................................................................................527 井下运输 ...........................................................................................................................557.1 概述 .........................................................................................................................557.1.1 矿井设计生产能力及工作制度 ..................................................................557.1.2 煤层及煤质 ..................................................................................................557.1.3 矿井运输系统 ..............................................................................................557.2 采区运输设备选择 .................................................................................................567.2.1 设备选型原则: ..........................................................................................567.2.2 采区运输设备选型及能力验算 ..................................................................567.3 大巷运输设备选择 .................................................................................................607.3.1 胶带运输大巷设备选择 ..............................................................................607.3.2 辅助运输大巷设备选择 ..............................................................................607.3.3 运输设备能力验算 ......................................................................................618 矿井提升 ...........................................................................................................................638.1 矿井提升概述 .........................................................................................................638.2 主副井提升 .............................................................................................................638.2.1 已知数据 ......................................................................................................638.2.2 主井提升设备选型 ......................................................................................638.2.3 副井提升设备选型 ......................................................................................638.2.4 井上下人员运送 ..........................................................................................649 矿井通风及安全 ...............................................................................................................669.1 矿井概况、开拓方式及开采方法 .........................................................................669.1.1 矿井地质概况 ..............................................................................................669.1.2 开拓方式 ......................................................................................................669.1.3 开采方法 ......................................................................................................669.1.4 变电所、充电硐室、火药库 ......................................................................679.1.5 工作制、人数 ..............................................................................................679.2 矿井通风系统的确定 .............................................................................................679.2.1 矿井通风系统的基本要求 ..........................................................................679.2.2 矿井通风方式的选择 ..................................................................................679.2.3 矿井主要通风机工作方式选择 ..................................................................689.2.4 采区通风系统的要求 ..................................................................................689.2.5 采区工作面通风方式的选择 ......................................................................699.3 矿井风量计算 .........................................................................................................719.3.1 通风容易时期和通风困难时期采煤方案的确定 ......................................719.3.2 各用风地点的用风量和矿井总用风量 ......................................................719.3.3 风量分配 ......................................................................................................769.4 矿井通风阻力计算 .................................................................................................769.4.1 计算原则 ......................................................................................................759.4.2 矿井最大阻力路线
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