永煤集团城郊煤矿300万吨新井设计.docx

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。一般部分为永煤集团城郊煤矿300万t/a新井设计。全篇共分为十个部分：矿井概况及井田地质特征、井田境界及储量、矿井工作制度、设计生产能力、井田开拓、矿井基本巷道、采煤方法、采区巷道布置、井下运输、矿井提升、矿井通风与安全和矿井主要经济技术指标。城郊矿位于河南省永城市境内。井田南北走向平均长8km，东西平均宽11km，面积约90km2。 井田内可采煤层为二2煤，其赋存稳定，厚度平均为4.5 m，倾角平均6.18，为缓倾斜煤层。井田内工业储量为4.88亿t，可采储量为3.95亿t。矿井平均涌水量为180250 m3/d，井田中各煤层沼气含量一

2、般小于5cm3/g，属低沼气矿井。各煤层均无煤尘爆炸危险。各煤层均属不自燃发火煤层；地温2930。城郊煤矿年设计生产能力为300万t/a，服务年限为90年。采用立井开拓，暗斜井延深的开拓方式。工作制度为“四六”制。第一水平标高为550m，第二水平标高为-800m。矿井采用倾斜长壁综合机械化采煤法，一次采全高。矿井布置一个综采工作面，面长250m。煤炭通过胶带输送机运输。矿井初期通风方式为中央并列式。专题部分：专题题目为“瓦斯治理研究现状”。主要分析了。翻译部分：翻译了一篇Ahmad Fahimifar与Masoud Ranjbarnia发表的论文，题目为“基于收敛-约束法的巷道稳定系统注浆锚杆

3、的设计方法” 。关键词：立井；带区；无轨运输；中央并列式ABSTRACTThis design contains three parts: the general，the special subject and the translation.The general part is a new design of Chengjiao Mine in Yongcheng coal & electricity combine. The whole article is divided into ten parts: the outline of the mine, the mine field g

4、eology, the boundary and reserves, the designed productive capacity, the service life and working area, the coal transportation, the mine lifting, the ventilation and safety, and the main economical and technological index of the mine.The Chengjiao Mine field lies in Yongcheng in Henan province. The

5、 boundary of the mine field runs 8km from north to south and 11km from west to east on average. The total plane area of the mine is about 90km2. There is only one exploring layer-number two. Its average thickness of the seam is 4.5m and its stable and flatly inclined. Its dip angle is 6.18 degree on

6、 average. The industry reserves of the mine field are488 million tons and the useable reserves are 395million tons. The average inflow rate in Chengjiao mine is 180250 m3/h. It is a lower gassy mine. The coal dust doesnt have explosion hazard as well as the self-combustion tendency. The productive c

7、apacity of Chengjiao Mine is 3.0 million tons per year，and the service life is 90 years. The work system is 4-shift with a 6-hour workday. Therere two working levels in the mine. The first development level is located at the -550m, and the second is at the level of -800m. The comprehensive mechanize

8、d longwall caving method along the dip is used in Chengjiao Mine.There is only one working face in the mine. It is comprehensive mechanized coal face. The length of the face is 250m, and the designed productive capacity of the face is 3.0 million tons per year. Coal is transported by belt conveyer a

9、nd the diagonal ventilation system is used in Chengjiao.The title of special subject is “Present status of gascomprehensive control and research in coal mine”. The translation part is an article writed by Ahmad Fahimifar, Masoud Ranjbarnia “Analytical approach for the design of active grouted rockbo

10、lts in tunnelstability based on convergence-confinement method”.Keywords：shaft ; strip district; trackless transport; centralized juxtapose ventilation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矿区地理位置与交通11.1.2地形地貌21.1.3主要河流21.2 井田地质特征21.2.1井田地质构造21.2.2煤层特征21.2.3煤质31.2.4水文地质特征41.2.5其它开采地质条件52 井田境界与储量62.1井田境界62.

11、2矿井工业储量计算62.2.1储量计算依据62.2.2地质资源储量62.2.3工业资源储量62.2.4 矿井可采储量72.2.5矿井永久保护煤柱损失量73 矿井工作制度、设计生产能力及服务年限103.1矿井工作制度103.2矿井设计生产能力及服务年限103.2.1矿井设计生产能力及服务年限确定依据103.2.2矿设计生产能力103.2.3矿井服务年限103.2.4井型校核114 井田开拓124.1井田开拓的基本问题124.1.1确定井筒形式、数目、位置及坐标124.1.2工业场地的位置134.1.3开采水平的确定134.1.4运输大巷和井底车场的布置144.1.5矿井开拓延伸方案及阶段划分14

12、4.1.6方案比较144.2 矿井基本巷道194.2.1井筒194.2.2井底车场及硐室244.2.3主要开拓巷道265带区巷道布置305.1煤层地质特征305.1.1带区位置305.1.2采区煤层特征305.1.3地质构造305.1.4顶底板特性305.1.5水文地质305.1.6地表情况305.2带区巷道布置及生产系统315.2.1带区准备方式的确定315.2.2带区巷道布置315.2.3带区生产系统325.2.4带区内巷道掘进方法335.2.5带区生产能力及采出率335.3带区车场选型设计346 采煤方法356.1采煤工艺方式356.1.1带区煤层特征及地质条件356.1.2确定采煤工艺

13、方式356.1.3回采工作面长度的确定366.1.4回采工作面的推进方向和推进度376.1.5综采工作面的设备配套376.1.6 各工艺过程注意事项426.1.7 工作面端头支护和超前支护446.1.8循环图表、劳动组织、主要技术经济指标446.1.9 综合机械化采煤过程中应注意事项486.2回采巷道布置496.2.1回采巷道布置方式496.2.2回采巷道参数497 井下运输517.1概述517.1.1井下运输的原始条件和数据517.1.2井下运输系统517.2煤炭运输方式和设备选择517.3辅助运输方式和设备选择537.3.1大巷辅助运输设备选型537.3.2带区辅助运输选型558 矿井提升

14、568.1矿井提升概述568.2主副井提升568.2.1主井提升568.2.2副井提升589 矿井通风及安全609.1矿井通风系统选择609.1.1矿井概况609.1.2矿井通风系统的基本要求609.1.3矿井通风方式的确定609.1.4主要通风机工作方式选择619.1.5带区通风系统的要求629.1.6工作面通风方式的选择639.1.7回采工作面进回风巷道的布置639.1.8通风构筑物649.2矿井风量计算649.2.1通风容易时期和通风困难时期采煤方案的确定649.2.2各用风地点的用风量和矿井总用风量649.2.3风量分配689.3矿井阻力计算689.3.1计算原则699.3.2矿井最大

15、阻力路线699.4.3计算矿井摩擦阻力和总阻力749.3.3两个时期的矿井总风阻和总等积孔749.4选择矿井通风设备769.4.1选择主要通风机769.4.2电动机选型799.5安全灾害的预防措施809.5.1预防瓦斯和煤尘爆炸的措施809.5.2预防井下火灾的措施809.5.3防水措施8010 设计矿井基本技术经济指标81参 考 文 献82专题部分煤矿瓦斯治理研究现状831 煤矿瓦斯治理概述831.1煤矿瓦斯概念831.2瓦斯出现形式841.3爆炸841.4爆炸条件852 煤矿瓦斯治理技术的现状852.1煤矿瓦斯抽放技术852.2煤与瓦斯突出防治技术862.3瓦斯综合治理现状873国内外治理现状差异873.1国内瓦斯治理现状873.1.1 国内矿井监控系统8