霍州曹村矿240万t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。一般部分为曹村煤矿240万t新井设计，共分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.矿井通风与安全技术；10.矿井基本技术经济指标。曹村煤矿位于山西省临汾市北部霍州市东南约7km处，交通便利。井田走向长度为4.5 km,倾斜长度3.03.5km，。水平面积12.1km2，倾斜面积12.5 km2。井田内主采煤层一层，即2#煤层，平均倾角8.6，煤层平均厚9 m，井田工业储量为26803万t，可采储

2、量18381万t，矿井服务年限为59 a。煤层硬度系数f2.3，煤质牌号为气煤肥煤。本矿井为低瓦斯矿井，瓦斯绝对涌出量为3.73 m3/min，CO2绝对涌出量为26.21 m3/min。矿区综采，机掘的最大最小煤尘浓度和平均浓度为337.8 mg/m3，136.8 mg/m3；35.4 mg/m3，16.2 mg/m3，煤尘爆炸性指数在43%左右，均属于有煤尘爆炸危险性煤层。区内山西组2#煤为不易自燃煤层矿井为级发火矿井，井田内的煤层自燃发火期一般为36月。矿井采用双立井单水平开拓，采用中央并列式通风。一矿一面，采煤方法为长壁放顶煤全部垮落法。煤炭运输采用钢丝绳芯胶带，辅助运输采用电机车。矿

3、井年工作日为330 d，每天净提升时间16 h。矿井工作制度为：实行“四六”制。专题部分题目是煤矿粉尘防治技术研究。翻译部分是一篇关于瓦斯抽采的论文，英文原文题目为：Methane moving law with long gas extraction holes in goaf关键词：新井设计；放顶煤；中央并列式ABS TRACTThis design can be divided into three sections: general design, monographic study and translation of an academic paper.The general de

4、sign is about a 2.4 Mt/a new underground mine design of Caocun coal mine. It contains ten chapters: 1.overview and the geographical features of the mining field; 2.boundary and reserves of the mining field; 3.working system, designed mine capacity and mine life; 4.development of mining field; 5.prep

5、aration in strip district; 6.coal mining method; 7.underground conveying; 8.mine exaltation; 9.mine ventilation and safety technology; 10.the basic technical and economic index.Caocun coal mine lies in Huozhou, Shanxi province.It is in Linfen town, the traffic is very convenient. Its about 4.5 km on

6、 the strike and 3.5 km on the dip,with the 12.1 km2 total horizontal area. The minable coal seam of this mine is only 2 with an average thickness of 9 m and an average dip of 8. The proved reserves of this coal mine are 268.03 Mt and the minable reserves are 183.81 Mt, with a mine life of 59 a.The g

7、eological condition of the mine is relatively simple. The absolute mine gas is 3.73m3/min,and the absolute carbon dioxide is 26.21 m3/min .The maximum and minimum coal dust density and average is 337.8 mg/m3，136.8 mg/m3；35.4 mg/m3，16.2 mg/m3.The normal mine inflow is120 m3/h and the maximum mine inf

8、low is 142 m3/h. It is bituminous coal with low mine gas emission rate and coal spontaneous combustion tendency, and its a coal seam liable to dust explosion.This mine adopts vertical shaft development with one mining level and exhaust ventilation, centralized juxtapose earlier and radial later. The

9、 adopted coal winning method is longwall mining on the dip with top-coal caving. The belt conveyor is applied to transport coal and motor vehicles is used in the auxiliary conveying. We work 330 days per year ,and exaltate 16 hours one day .The “foresix” working system is applied for coal mining . S

10、pecial section entitled coal mine dust control techniques. The translated academic paper is about coal pillar design .Its title is that Methane moving law with long gas extraction holes in goafKeywords：the design of mine;top-coal caving ; centralized juxtapose ventilation目 录1 矿区概述及井田地质特征11.1 矿区概述11.

11、1.1矿区地理位置11.1.2 矿区气候条件11.1.3矿区地貌、水文情况11.1.4矿区地震21.2井田地质特征21.2.1以往地质报告及勘探工作简况21.2.2煤系地层21.2.3井田地质构造31.2.4水文地质特征41.3煤层特征71.3.1可采煤层71.3.2煤的特征91.3.3其它有益矿产101.3.4瓦斯，煤尘及自燃112 井田境界与储量122.1井田境界122.1.1井田范围122.1.2开采界限132.1.3井田尺寸132.2井田地质勘探132.2.1勘探类型132.2.2 钻孔分布及储量等级圈定132.2.3 最小可采厚度142.3矿井地质储量142.3.1储量计算基础142

12、.3.2矿井地质储量计算152.3.3矿井工业储量计算152.4 矿井可采储量162.4.1井田边界保护煤柱162.4.2工业广场保护煤柱162.4.3风井保护煤柱172.4.4大巷保护煤柱172.4.5矿井可采储量183矿井工作制度、设计生产能力及服务年限193.1矿井工作制度193.2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203.2.4井型校核204井田开拓214.1井田开拓的基本问题214.1.1确定井筒形式、数目、位置224.1.2阶段划分和开采水平的确定234.1.3井田划分244.1.4主要开拓巷道244.1.5开拓

13、方案比较244.2矿井基本巷道314.2.1井筒314.2.2井底车场及硐室334.2.3大巷354.2.4巷道支护365 准备方式采区巷道布置395.1煤层地质特征395.1.1采区位置395.1.2采区煤层特征395.1.3煤层顶底板岩石构造情况395.1.4水文地质395.1.5地质构造395.1.6地表情况395.2采区巷道布置及生产系统395.2.1采区准备方式的确定395.2.2采区巷道布置395.2.3采区生产系统405.2.4采区内巷道掘进方法415.2.5采区生产能力及采出率415.3采区车场选型设计426 采煤方法446.1采煤工艺方式446.1.1采区煤层特征及地质条件4

14、46.1.2确定采煤工艺方式456.1.3确定工作面长度456.1.4回采工艺及设备466.1.5回采工作面支护方式496.1.6端头支护及超前支护方式516.1.7各工艺过程注意事项526.1.8回采工作面正规循环作业536.2回采巷道布置556.2.1回采巷道布置方式556.2.2回采巷道参数567 井下运输587.1概述587.1.1井下运输的原始条件和数据587.1.2井下运输系统587.2煤炭运输方式和设备选择587.3辅助运输方式和设备选择597.3.1选择电机车597.3.2设备选择598 矿井提升618.1矿井提升的原始数据和地质条件618.2主副井提升618.2.1主井提升6

15、18.2.2副井提升639 矿井通风及安全659.1矿井通风系统选择659.1.1矿井概况659.1.2矿井通风系统的基本要求659.1.3矿井通风方式的确定659.1.4 主要通风机工作方式选择669.1.5 采区通风系统的要求679.1.6 工作面通风方式的选择679.1.7 回采工作面进回风巷道的布置689.2采区及全矿所需风量689.2.1采煤工作面实际需要风量689.2.2掘进工作面需风量699.2.3硐室需风量709.2.4其它巷道所需风量709.2.5矿井总风量计算709.2.6风量分配719.3矿井通风总阻力计算719.3.1矿井通风总阻力计算原则719.3.2确定矿井通风容易和困难时期719.3.3矿井最大阻力路线729.3.4矿井通风阻力计算729.3.5矿井通风总阻力729.3.6两个时期的矿井总风阻和总等积孔729.4选择矿井通风设