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1、内蒙古科技大学本科生毕业设计说明书(毕业论文)题 目:内蒙古永智煤炭公司3煤层地下开采初步设计摘 要矿井生产,其主要特点是地下作业,工作环境艰苦,自然条件复杂,通风和安全措施显得尤为重要。各煤田所处的地理位置不同,煤层地质条件多种多样,开采方法也就多种多样。本设计是在永智煤矿原始地质条件下作的矿井初步设计,设计内容包含:井田概况及地质特征、矿井开拓、通风设计、矿井安全技术措施,以及专题采煤工作面瓦斯综合治理等方面。 井田概况主要包括矿区的地理、地形和交通;矿井的地理位置、井田范围;矿区的气象条件、地震烈度、电源和水源的概况;井田地质特征、煤层及煤质概况以及水文地质条件概况等。矿井开拓分别论述了
2、主井、副井位置选择、采区的划分、水平的划分以及开采顺序、采区的布置及装备、各巷道的布置等。通风设计主要包括矿井通风系统的选择、矿井所需风量的计算及分配、全矿井前期、后期的通风阻力计算以及对通风设备的选择等。安全技术措施包括井下瓦斯预防、顶板管理、水灾预防、火灾预防、煤矿爆炸的预防及粉尘防治措施等。关键词:矿井;开拓开采;通风;安全;瓦斯综合治理。ABSTRACTThe coalfield to the geography and varied geological conditions of coal, mining methods have varied. Mine production,
3、its main feature is underground work, work hard and complicated natural conditions, the ventilation and safety measures appears to be particularly important.This design is the mineral well first step design make under the condition of original geology of the mine of Yong Zhi Coal Mine, This design c
4、ontents containment: The well farmland general situation and geology characteristic, the mineral wells expand, safe technique measure of well ventilated design, the mineral well, and the feature of coal face comprehensive management of gas, etc. The field general situation of the well includes geogr
5、aphy, topography and traffic of the mining area mainly; The geographical position of the mine, field range of well; The meteorological condition of the mining area, general situation of earthquake intensity, the power and source of water; Characteristic of field quality of the well, coal seam, natur
6、e of coal general situation and hydro geological condition general situation, etc.It expound the fact separately mines open-ups by main shafts, Auxiliary shaft, waste rock well, level divide and exploit the divisions of person who adopt, person who adopt assign order and, every tunnel assign etc. eq
7、uipment ventilating shaft the choices of position things.The ventilation design includes the choice of the ventilating system of mine mainly, Calculation, distribution, the whole mine ventilation obstruction calculating and choice to the ventilation facilities of easy period, difficult period of the
8、 necessary wind quantity of the mine, etc.The safe practice measure includes in the pit the marsh gas is prevented a plank management, flood disaster prevention, a fire prevention, the prevention and dust prevention and cure measure, etc.The feature of coal face the comprehensive management of gas i
9、ncludes lane pumping out high-mining, bored pumped to the roof mining, gob-pipe pumping, the early use of the end of alley-pumping out a variety of mining methods, such as comprehensive management of natural gas, thus blocking part of the gas, to reduce their put into the face.Key Words: Mineral wel
10、l, expands to mine, well ventilated, safety, the comprehensive management of gas.目 录第一章 井田概述及井田地质特征1.1 矿区概述1.1.1 交通位置内蒙古准格尔旗永智煤炭有限公司煤矿位于内蒙古自治区鄂尔多斯市准格尔旗境内,行政区划属准格尔旗神山镇。其地理坐标为:东经:1101107 1101229;北纬:393959 394208。矿区距主要交通干线包府公路和109国道约6km,西北距东胜区约20km。东胜区是鄂尔多斯市重要的交通枢纽,东西向有109国道,南北向有210国道,并有包府公路及包神铁路通过,交通干
11、线四通八达,交通便利。交通位置详见图1.1。1.1.2 地形、地势及河流地形总体呈西北高东南低,相对高差为95.4m左右。最高点位于核实区北部,海拔标高1434.10m,最低点位于东南部长捎沟中,海拔标高1333.4m。最大的沟谷为核实区东界的石灰川,雨季常形成季节性流水,暴雨过后可形成短暂的洪流。沟中有水井数口,水深7.03.0m。永智煤矿位于石灰川西侧的侵蚀性丘陵区。1.1.3 资源整合前各矿现状原准旗准格尔召黄天棉图村武当沟煤矿(以下简称原武当沟煤矿)与准格尔旗闹羊渠煤炭有限责任公司煤矿(以下简称原闹羊渠煤矿)进行了整合,并将其外围无矿权争议的边角地段也一并划入(以下简称新扩区),划定矿
12、区范围煤矿名称为准格尔旗永智煤炭有限公司煤矿。原武当沟煤矿颁发采矿许可证,证号为1500000230488,有效期限至2005年12图1.1 交通位置图月,矿区面积为0.5659km2,开采标高13391335m,矿区范围由4个拐点圈定。原闹羊渠煤矿核准采矿许可证,证号为1500000520304,矿区面积2.2204km2,开采标高13601318m,有效期至2010年5月,矿区范围由6个拐点圈定。准格尔旗永智煤炭有限公司煤矿,将原武当沟煤矿与原闹羊渠煤矿进行了整合,并扩大了井田范围(其范围含原五当沟煤矿与原闹羊渠煤矿),面积5.7371km2,开采标高13481241m,划定矿区范围由6个
13、拐点圈定,见表1.1。表1.1 永智煤矿及原煤矿范围各拐点直角坐标一览表原 武 当 沟 煤 矿拐点编号XY拐点编号XY14396565.0037431010.0034395570.0037431810.0024396125.0037431870.0044395780.0037431010.00原 闹 羊 渠 煤 矿14395900.0037430302.0044392920.0037432070.0024394550.0037431350.0054393000.0037431810.0034394550.0037432100.0064394660.0037430310.00永 智 煤 矿143
14、96862.0037430270.0044394550.0037432099.0024396566.0037431010.0054392890.0037432043.0034396125.0037431870.0064393900.0037430110.00根据内蒙古自治区东胜煤田铜匠川详查区永智煤矿煤炭资源储量核实报告矿产资源储量评审备案证明中,核实煤层实际赋存标高调整为13801214m。本井田东侧邻准格尔旗神山煤炭有限责任公司乌兰哈达机井队煤矿、伊盟准格尔旗鑫源煤矿;南侧邻准格尔旗炭窑渠煤炭有限责任公司煤矿。相邻煤矿基本情况见表1.2。1.1.4 电源、水源情况(一)电源情况从矿井工业场
15、地北方西1km处的柛山镇110kV变电站35kV的不同母线段引两回路35kV电源线路作为永智煤矿的永久电源。当任一回路故障停电时,另一回路能担负全部负荷。35kV电源线路导线:LGJ-95。表1.2 相邻煤矿基本情况一览表矿 山 名 称证 号面 积(km2)生产规模(万t/a)准格尔旗神山煤炭有限责任公司乌兰哈达机井队煤矿15000005101661.83030伊盟准格尔旗鑫源煤矿15000005201420.6336准格尔旗炭窑渠煤炭有限责任公司煤矿15000005303450.3259(二)水源情况井田内无经济、可靠的地表水可利用。本矿生活用水和部分生产用水由内蒙古科源水务有限公司供给,矿方在本矿建两个500m3蓄水池,一个正常使用,一个备用清污。矿井建成后,井下正常涌水量为1020m3/h,可作为井下消防洒水用水,经净化处理后使用,不足部分可由地面供水系统供给。1.1.5 主要建筑材料供应情况矿井所需钢材、木材、水泥、各种设备市场上能够满足建设需求;砖、石、砂及石灰等本地可满足需求。1.2 地质