屯留煤矿1.2Mta新井设计.pdf

1、摘摘 要要 本设计包括三个部分：一般设计部分、专题设计部分和翻译部分。一般部分为屯留矿 1.2Mt/a 的新井设计。屯留矿位于山西省长治市境内，矿区对外交通有太（原）焦（作）铁路。交通十分便利。井田走向长 6.01km，倾斜宽 4.05km，面积 24.34km2。主采煤层一层，即 3 号煤层，平均倾角 10，厚约 4.1m。井田工业储量为 133.82 Mt，可采储量 97.94 Mt，矿井服务年限为 62.78 a。井田地质条件简单。表土层平均厚度 45 m；矿井正常涌水量为 320 m3/h，最大涌水量为 340 m3/h；煤层硬度系数 f=2.5；矿井绝对瓦斯涌出量为 1.84 m3/

2、min，属低瓦斯矿井；煤层有自燃发火倾向，发火期 36 个月，煤尘具有爆炸危险性。根据井田地质条件，提出四个技术上可行开拓方案。方案一：立井两水平开采，暗斜井延深至 60m 水平；方案二：立井两水平开采，立井延深至 60m 水平；方案三：立井两水平开采，暗斜井延伸至 200 m 水平；方案四：立井两水平开采，立井井延伸至 200 m 水平。通过技术经济比较，最终确定方案一为最优方案。将主采煤层划分为两个水平，一水平标高+350 m，二水平标高+60 m，因井田走向大断层将井田分为东西两部分，井田东部为一水平服务范围，井田西部为二水平服务范围。设计首采区采用带区准备方式，工作面长度 200 m，

3、采用一次采全高采煤法，全部跨落法处理采空区。矿井采用“四六”制作业，三班生产，一班检修。生产班每班 2 个循环，日进 6 个循环，循环进尺 0.6 m，日产量 3645.45t。大巷采用带式输送机运煤，辅助运输采用 1.5 t 固定箱式矿车。主井装备一套 12 t 双箕斗和一套 12 t 单箕斗带平衡锤提煤，副井装备一对 3 t 矿车双层单车罐笼带平衡锤担负辅助运输任务。矿井采用中央并列式通风。通风容易时期矿井总需风量 4608 m3/min，矿井通风总阻力 2096 Pa，风阻 0.35 N s2/m8，等积孔 2.92 m2，矿井通风容易。矿井通风困难时期矿井总风量 4608 m3/min

4、，矿井通风总阻力 2746 Pa，风阻 0.46 N s2/m8，等积孔 2.27m2，矿井通风容易。设计矿井的吨煤成本 100 元/t。专题部分题目是急倾斜煤层覆岩导水裂隙带高度分析。翻译部分是一篇关于电 磁 辐 射 在 煤矿 冲 击 地压 预 测 中的 应用，英 文 原 题目 Calculation of Electromagnetic Radiation Criterion for Rockburst Hazard Forecast in Coal Mines.关键词：立井；大采高；单巷掘进；中央并列式 ABSTRACTThis design can be divided into th

5、ree sections:general design,monographic studyand translation of an academic paper.The general design is about a 1.2 Mt/a new underground mine design of Tunliucoal mine.Tunliu coal mine lies in Changzhi,Shanxi province.As Taijiao railway runacross the east part of the mining field connect,the traffic

6、 is very convenient.Itsabout 6.01 km on the strike and 4.05 km on the dip,with the 24.34 km2 total horizontalarea.The minable coal seam of this mine is only 3with an average thickness of 4.1 mand an average dip of 10.The proved reserves of this coal mine are 133.82Mt andthe minable reserves are 97.8

7、4 Mt,with a mine life of 62.78a.The geologicalcondition of the mine is relatively simple.The normal mine inflow is 320 m3/h andthe maximum mine inflow is 340 m3/h.Its a coal seam liable to explosion.Based on the geological condition of the mine,I bring forward four availableproject in technology.The

8、 first is vertical shaft development with two mining levelsand the extension of inclined shaft go to 60 m;thr second is vertical shaftdevelopment with two mining levels and the extension of vertical shaft go to 60 m;the third is vertical shaft development with two mining levels and the extension ofi

9、nclined shaft go to 200 m;the last is vertical shaft development with two mininglevels and the extension of vertical shaft go to 200 m.The first project is the bestcomparing with other three project in technology and economy.The first level is at+350 m,The second level is at+60m,Because a major faul

10、t lies in the center of minefield,the mine field is divided into the north section and the south section,the southsection is one level service scope,and the north section is two level service scope.Designed first mining district makes use of the method of preparation in miningarea,the length of work

11、ing face is 200m,which uses fully-mechanized coal miningtechnology,and fully caving method to deal with goaf.The working system is“four-six”,with three teams mining,and the other overhauling.Every mining teammakes two working cycle,with six working cycle everyday.Advance of workingcycle is 0.6 m,and

12、 quantity of 3645.45 ton coal is maked everyday.Main roadway makes use of belt conveyor to transport coal resource,and mine carto be assistant transport.Main shaft makes use of skip to transport coal resource,when subsidiary shaft makes use of cage to be assistant transport.In the prophase ofmining

13、the mine makes use of centralized ventilation method,when in the evening ofmining the mine makes use of areas ventilation method.At the easy time of mineventilation,the total air quantity is 4608 m3 per minute,the total mine ventilationresistance is 2096 Pa,the coefficient of resistance is 0.35 N s2

14、/m8,equivalent orifice is2.92 m2.At the difficult time of mine ventilation,the total air quantity is about 4608m3 per minute,the total mine ventilation resistance is 2746 Pa,the coefficient ofresistance is 0.465 N s2/m8,equivalent orifice is 2.27 m2.The cost of the designed mine is 100 yuan per ton.

15、The monographic study is Overburden steep seam height of water flowing fractured zone.The translated academic paper is about Calculation of Electromagnetic Radiation Criterion for Rockburst Hazard Forecast in Coal Mines Keywords：shaft;large mining height;single thunnel drivage;centralized juxtapose

16、ventilation.目 录 一般部分一般部分 1 矿区概述及井田地质特征矿区概述及井田地质特征 1.1 矿区概述.1 1.2 井田地质特征.2 1.3 煤层特征.3 2 井田境界和储量井田境界和储量 2.1 井田境界.7 2.2 储量.7 3 矿井工作制度、设计生产能力及服务年限矿井工作制度、设计生产能力及服务年限 3.1 矿井工作制度.11 3.2 矿井设计生产能力及服务年限.11 4 井田开拓井田开拓 4.1 井田开拓的基本问题.13 4.2 矿井基本巷道.21 5 准备方式准备方式带区巷道布置带区巷道布置 5.1 煤层地质特征.32 5.2 带区巷道布置及生产系统.33 5.3 带区车场选型设计.37 6 采煤方法采煤方法 6.1 采煤工艺方式.39 6.2 回采巷道布置.49 7 井下运输井下运输 7.1 概述.55 7.2 带区运输设备选择.56 7.3 大巷运输设备选择.58 8 矿井提升矿井提升 8.1 概述.61 8.2 主副井提升.61 9 矿井通风及安全矿井通风及安全技术技术 9.1 矿井通风系统的选择.65 9.2 带区及全矿所需风量.69 9.3 矿井阻力计