祁东煤矿1.2Mta新井设计【专题浅谈祁东矿6201工作面瓦斯抽采治理技术】.doc

1、摘 要本设计包括三个部分：一般部分、专题部分和翻译部分。一般部分为祁东矿1.2Mt/a新井设计。祁东矿位于安徽省宿州市东南，交通便利。井田走向（东西）长约9.2km，倾向（南北）长约5.0km，井田总面积约35.4km2。主采煤层为61#煤，倾角1015，平均14。煤层平均厚度为3.6 m。井田地质条件较为简单。井田工业储量为122.02Mt，矿井可采储量98.6Mt。矿井服务年限为63.21a，涌水量不大，矿井正常涌水量为234m3/h，最大涌水量为360m3/h。矿井相对瓦斯涌出量为12.76 m3/t，为高瓦斯矿井。井田为立井两水平开拓。大巷采用胶带运输机运煤，辅助运输采用矿车运输。矿井

2、通风方式为两翼对角式通风。矿井年工作日为330 d，工作制度为“三八”制。一般部分共包括10章：1.矿区概述及井田地质特征；2.井田境界和储量；3.矿井工作制度、设计生产能力及服务年限；4.井田开拓；5.准备方式采区巷道布置；6.采煤方法；7.井下运输；8.矿井提升；9.矿井通风与安全；10.矿井基本技术经济指标。专题部分题目为浅谈祁东矿6201工作面瓦斯抽采治理技术。翻译部分题目为极深条件下的高效长壁采煤。关键词：立井开拓，暗斜井延伸，两翼对角式通风。ABSTRACTThe three parts is included in this design,i.e.,the general par

3、t, special subject part and translation.The general part is a new design of QiDong mine with a production of 1.2 million t/a. QiDong mine lines in the southeast of SuZhou County, AnHui province. The traffic of road and railway is very convenience to the mine. The run of the minefield is 9.2 km ,the

4、width is about 5.0 km, well farmland total area is 35.4 km2. No. 61 is the main coal seam, and its dip angle is 1015, 14 for average. The thickness of the mine is about 3.6m respectively. The geological conditions of the minefield is relatively simple.The proved reserve of the minefield is 122.02 Mt

5、. The recoverable reserve is 98.6 Mt. The designed productive capacity is 1.2 Mt/a, and the service life of the mine is 63.21 years. The normal water flow of the mine is 234 m3/h and the max flow of the mine is 360 m3/h. The relative gas emission rate of the mineral well is 12.76 m3/t, for high gas

6、mineral well.The well farmland is a double-level with a shaft to expand. The coal is transported by the belt conveyer in the main roadway and 1 t mine car is used as the auxiliary transportation equipment. The way of mine ventilation is two wing opposite angle type.The working system “three-eight” i

7、s used in Qidong mine. It produces 330d/a.This general part includes ten chapters: 1.An outline of the mine field geology; 2.Boundary and the reserves of mine; 3.The service life and working system of mine; 4.Development engineering of coalfield; 5.The layout of panels; 6. The method used in coal mi

8、ning; 7. Transportation of the underground; 8.The lifting of the mine; 9. The ventilation and the safety operation of the mine; 10.The basic economic and technical norms.Special subject part of topics is: On the extraction treatment technology for gas of the 6201 fully mechanized caving face in Qido

9、ng mine.The title of the translation part is: High performance longwall extraction in large depth.Keywords:vertical development; inside slope development; two wing opposite angle type ventilation目 录一般设计部分1 矿井概述及井田地质特征71.1矿区概述71.1.1矿区地理位置、范围71.1.2交通条件71.1.3地形、地貌71.1.4工农业生产情况71.1.5矿区气候71.2井田地质特征81.2.1

10、井田地质条件81.2.2地质综合柱状图81.2.3含煤地层101.3煤层特征121.3.1煤层埋藏条件121.3.2煤层群的层数121.3.3煤层的围岩性质131.3.4煤的特征142 井田境界和储量152.1井田境界152.2矿井储量计算152.2.1 构造类型152.2.2储量级别与计算块段的划分152.2.3矿井可采储量172.2.4工业广场煤柱183 矿井工作制度、设计生产能力及服务年限203.1矿井工作制度203.2矿井设计生产能力及服务年限203.2.1确定依据203.2.2矿井设计生产能力203.2.3矿井服务年限203.3井型校核214 井田开拓224.1井田开拓的基本问题22

11、4.1.1井筒形式和位置的确定224.1.2采区划分244.1.3工业场地的位置244.1.4开采水平的确定254.1.5井底车场和运输大巷的布置254.1.6矿井开拓延伸及深部开拓方案254.1.7开采顺序264.1.8矿井开拓方案比较264.2矿井基本巷道354.2.1井筒354.2.2井底车场及硐室384.2.3主要开拓巷道415 准备方式采区巷道布置455.1煤层地质特征455.1.1采区位置455.1.2采区煤层特征455.1.3煤层顶底板岩石构造情况455.1.4水文地质455.1.5地质构造455.1.6地表情况455.2采区巷道布置及生产系统455.2.1采区准备方式的确定45

12、5.2.2采区巷道布置465.2.3采区生产系统475.2.4采区内巷道掘进方法485.2.5采区生产能力及采出率495.2.6采区准备巷道495.3采区车场选型设计515.3.1采区上部车场选型515.3.2采区中部车场选型515.3.3采区下部车场选型525.3.4采区主要硐室526 采煤方法546.1采煤工艺方式546.1.1采区煤层特征及地质条件546.1.2确定采煤工艺方式546.1.3回采工作面长度的确定546.1.4工作面的推进方向和推进度546.1.5综采工作面的设备选型及三机配套546.1.6各工艺过程注意事项616.1.7工作面端头支护和超前支护626.1.8循环图表、劳动

13、组织、主要技术经济指标636.1.9综采机械化采煤过程中应注意事项676.2回采巷道布置686.2.1回采巷道布置方式686.2.2回采巷道参数687 井下运输707.1概述707.1.1矿井设计生产能力及工作制度707.1.2煤层及煤质707.1.3运输距离和辅助运输设计707.1.4矿井运输系统707.2采区运输设备选择717.2.1设备选型原则717.2.2采区运输设备选型及能力验算717.3大巷运输设备选型737.3.1运输大巷设备选择737.3.2轨道大巷设备选择737.3.3运输设备能力验算758 矿井提升768.1矿井提升概述768.2主副井提升768.2.1主井提升768.2.

14、2副井提升779 矿井通风及安全809.1矿井地质、开拓、开采概况809.1.1矿井地质概况809.1.2开拓方式809.1.3开采方法809.1.4变电所、充电硐室、火药库809.1.5工作制、人数809.2矿井通风系统的确定819.2.1矿井通风系统的基本要求819.2.2矿井通风方式的选择819.2.3矿井通风方法的选择829.2.4采区通风系统的要求839.2.5回采工作面通风方式的选择849.3矿井风量计算及风量分配849.3.1 选择通风系统的原则和方法849.3.2 配风依据859.3.3 风量计算859.3.4 风量分配与风速验算889.4 矿井通风阻力899.4.1 矿井最大

15、阻力路线909.4.2 矿井通风阻力计算909.4.3 矿井通风总阻力919.4.4 两个时期的矿井总风阻和总等积孔919.5 矿井通风设备选型929.5.1 选择主要通风机的基本原则929.5.2 通风机风压的确定939.5.3 电动机选型949.5.4 对矿井主要通风设备的要求949.5.5 对反风风硐的要求959.6 矿井灾害的防治措施959.6.1 瓦斯管理措施959.6.2 煤尘的防治959.6.3 防火959.6.4 防水9610 设计矿井基本技术经济指标99参考文献101专题设计部分浅谈祁东矿6201工作面瓦斯抽采治理技术1031 绪论1031.1 引言1031.2 国内外瓦斯抽采治理