摘 要
本设计包括三个部分：一般部分、专题部分和翻译部分。 一般部分为成庄矿1.8Mt/a新井通风与安全设计。成庄矿位于山西省晋城市西北20km处，井田南北长3.45km，东西宽9.5km，面积32.75km2。主采煤层为3号煤，平均倾角为3°，煤层平均厚度为6.00m。井田地质条件较为简单。
矿井工业储量258.37Mt，矿井可采储量173.04Mt。矿井涌水量不大，矿井正常涌水量为266m3/h，最大涌水量为395m3/h。矿井瓦斯涌出量较高，为高瓦斯矿井。煤尘无爆炸危险性。
成庄矿设计年生产能力为1.8Mt/a，服务年限为68.66a。矿井年工作日为330d，工作制度为“四六”制。井田为双斜井单水平开拓，水平标高为+610m。大巷采用胶带运输机运煤，辅助运输采用无轨胶轮车设备。矿井通风方式前期为中央并列式通风，后期可采用两翼对角式通风。工作面采用的是“U+L”型通风方式，有效解决了工作面上隅角瓦斯积聚的问题。
矿井的采煤方法为综采放顶煤一次采全高开采，工作面长度为240m。
一般部分共包括五章：1.矿区概述及井田地质特征；2.井田开拓；3.采煤方法及采区巷道布置；4.矿井通风与安全；5.安全技术措施
专题部分题目是高瓦斯矿井的瓦斯抽放及利用技术。概述了目前的瓦斯抽放方法，并以寺河矿为例着重介绍了瓦斯的利用技术。
翻译部分主要内容为矿井火灾，英文题目为：MINE FIRE
关键词：成庄矿 ；新井设计 ；通风 ；安全
ABSTRACT
This design includes of three parts: the general part, special subject part and translated part. The general part is a new design of Chengzhuang mine. Chengzhuang mine lines in northwest of Jincheng in ShanXi province. The traffic of road and railway is very convenience to the mine. The run of the minefield is 9.5 km , the width is about 3.45 km，well farmland total area is 32.75 km2. The fifteen is the main coal seam, and its dip angle is 3 degree. The thickness of the mine is about 6.00m.
The proved reserves of the minefield are 258.37million tons. The recoverable reserves are 173.04 million tons. The normal flow of the mine is 266 m3 percent hour and the max flow of the mine is 395 m3 percent hour. The mineral well gas gushes the deal higher, for high gas mineral well. Coal doesn't contain Bang risk.
The designed productive capacity is 1.8 million tons percent year, and the service life of the mine is 68.65 years. The working system “four six ” is used in the Chengzhang mine. It produced 330d/a.
The well farmland is a single level in an inclined well to expand. The level elevation is +610 m. In earlier period ,the ventilated way under shaft is parallel ventilation and inlater period, the ventilation is decorated by subarea diagonal.The ventilation way of the working suiface is “U+L” type and this way is an efficitive solution to the gas accumulation in the corner angle.
The colliery adopts coal method is the alignment long the wall synthesizes to mechanize to adopt once the all and high method mines. The length of working-face is 240 m.
This design includes five chapters: 1.An outline of the mine field geology; 2.development engineering of coalfield; 3.The method used in coal mining and the belt area tunnel arrangement; 4.The ventilation and the safety operation of the mine; 5.The technical safety measures.
Thematic part of the topic is the gas drainage and the use of technology in High-gas coal.The part has an overview of the present gas pulls out puts the method.At the same time,in the case the SiHe mine elaborating the gas use technology.
Translation part of main contentses is about mine fire
Keywords： the Chengzhuang mine; a new design of mine; ventilation; safety
目 录
一般部分
1 矿区概述及井田地质特征 ................................................................................................. 1
1.1 矿区概述 .................................................................................................................. 1
1.1.1井田位置、范围及交通 ................................................................................ 1 1.1.2地形地貌 ........................................................................................................ 1 1.1.3 水文地质 ....................................................................................................... 1
1.1.4 气象、地温及地震 ....................................................................................... 1 1.1.5 矿区经济概况 ............................................................................................... 1 1.1.6矿井水、电源情况 ........................................................................................ 2 1.2 井田地质特征 .......................................................................................................... 3
1.2.1 地层 ............................................................................................................. 3 1.2.2地质构造 ........................................................................................................ 4 1.2.3井田水文地质 ................................................................................................ 6 1.3 煤层特征 ................................................................................................................ 10
1.3.1煤层赋存条件 .............................................................................................. 10 1.3.2煤质 .............................................................................................................. 10 1.3.2煤层瓦斯含量 .............................................................................................. 11
2 井田开拓 ........................................................................................................................... 13
2.1井田境界及可采储量 ............................................................................................. 13
2.1.1井田境界 ...................................................................................................... 13 2.1.2 可采储量 ..................................................................................................... 13 2.1.3 矿井设计生产能力及服务年限 ................................................................. 18 2.2 井田开拓 ................................................................................................................ 20
2.2.1井田开拓的基本问题 .................................................................................. 20 一、确定井筒形式、数目、位置及坐标 ........................................................... 20 二、工业场地的位置 ........................................................................................... 21 三、开采水平的确定及采盘区划分 ................................................................... 21 四、主要开拓巷道 ............................................................................................... 21 五、方案比较 ....................................................................................................... 22 2.2.2矿井基本巷道 .............................................................................................. 26 2.2.3 大巷运输设备的选择 ................................................................................. 35 2.2.4 矿井提升 ..................................................................................................... 40
3 采煤方法及采区巷道布置 ............................................................................................... 45
3.1 煤层的地质特征 .................................................................................................... 45 3.2 带区巷道布置及生产系统 .................................................................................... 45
3.2.1 带区的煤层地质特征 ................................................................................. 45 一、带区位置 ....................................................................................................... 45 二、带区煤层特征 ............................................................................................... 45 三、煤层顶底板岩石构造情况 ........................................................................... 45 四、水文地质 ....................................................................................................... 46 五、地质构造 ....................................................................................................... 46 六、地表情况 ....................................................................................................... 46 3.2.2带区巷道布置及生产系统 .......................................................................... 46 3.2.3 带区内巷道掘进 ......................................................................................... 49 3.3采煤方法 ................................................................................................................. 49
3.3.1 采煤工艺方式 ............................................................................................. 49 3.3.2回采巷道布置 .............................................................................................. 64 一、回采巷道布置方式 ....................................................................................... 64 二、回采巷道参数 ............................................................................................... 65
4 矿井通风 ........................................................................................................................... 66
4.1矿井通风系统选择 ................................................................................................. 66
4.1.1矿井概况 ...................................................................................................... 66 4.1.2矿井通风系统的基本要求 .......................................................................... 66 4.1.3矿井通风方式的确定 .................................................................................. 67
4.1.4 主要通风机工作方式选择 ......................................................................... 68 4.2 带区通风 ................................................................................................................ 69
4.2.1 带区通风系统的要求 ............................................................................... 69 4.2.2 工作面通风方式的选择 ........................................................................... 70 4.2.3 采区通风构筑物 ......................................................................................... 72 4.2.4 通风合理性评价 ......................................................................................... 72 4.3 掘进通风 ................................................................................................................ 73
4.3.1掘进通风方法选择 ...................................................................................... 73 4.3.2掘进通风方式选择 ...................................................................................... 73 4.3.3 掘进工作面所需风量 ................................................................................. 73 4.3.4 掘进通风设备选型 ..................................................................................... 74 4.3.5 局部通风机安全技术措施 ......................................................................... 78 4.4 矿井所需风量 ........................................................................................................ 79
4.4.1 矿井风量计算标准及原则 ......................................................................... 79 4.4.2矿井总风量的计算 ...................................................................................... 79 4.4.3 备用面需风量的计算 ................................................................................. 82 4.4.4 掘进工作面需风量 ..................................................................................... 82 4.4.5 硐室需风量 ................................................................................................. 82
4.4.6 其它巷道所需风量 ..................................................................................... 83 4.4.7 矿井总风量计算 ......................................................................................... 83 4.4.8 风量分配 ..................................................................................................... 83 4.5 矿井通风阻力 ........................................................................................................ 85
4.5.1 矿井通风总阻力计算原则 ......................................................................... 85 4.5.2 确定矿井通风容易和困难时期 ................................................................. 85 4.5.3 矿井最大阻力路线 ..................................................................................... 85 4.5.4 矿井通风阻力计算 ..................................................................................... 90 4.5.5 矿井通风总阻力 ......................................................................................... 92 4.5.6 两个时期的矿井总风阻和总等积孔 ......................................................... 93 4.6 矿井主要通风机选型 ............................................................................................ 93 4.6.1选择主要通风机 .......................................................................................... 93 4.6.2配套电动机选型 .......................................................................................... 96 4.6.3 矿井主要通风设备的要求 ......................................................................... 98 4.7 矿井反风措施及装置 ............................................................................................ 98 4.7.1矿井反风的目的意义 .................................................................................. 98 4.7.2矿井反风设施布置、方法及安全可靠性分析 .......................................... 98 4.8 概算矿井通风费用 .............................................................................................. 100 5 安全技术措施 ................................................................................................................. 102
5.1 矿井安全技术状况 .............................................................................................. 102 5.2 防止特殊灾害的预防措施 .................................................................................. 102
5.2.1 瓦斯灾害防治 ......................................................................................... 102 5.2.2 粉尘防治 ................................................................................................. 102 5.2.3 预防井下火灾及煤层自然发火的措施 ................................................... 103 5.2.4 水灾防治措施 ........................................................................................... 103 5.2.5 顶板事故防治措施 ................................................................................. 104 5.2.6 其他事故防治 ........................................................................................... 104 5.3 事故预防及处理计划的编制 .............................................................................. 105
5.3.1 事故时期人员撤退路线及抢险人员的措施 ........................................... 105 5.3.2 事故告急方法 ........................................................................................... 106 5.3.3 事故期间通风方法 ................................................................................... 106
5.3.4 处理事故的措施 ....................................................................................... 107 5.3.5 参加处理人员的职责划分 ....................................................................... 108
专题部分
高瓦斯矿井的瓦斯抽放及利用技术 ................................................................................. 112
第一章 瓦斯抽放基础知识 ................................................................................... 113
第一节 瓦斯抽放系统 ................................................................................... 113 第二节 瓦斯抽放基本参数 ........................................................................... 116 第二章 煤矿瓦斯抽放的基本方法 ......................................................................... 118