采矿工程毕业论文

摘要本次设计的是大斗沟3#煤层初步设计，井型1.2Mt/a。大斗沟煤矿3#煤层走向长度约7km，东西倾向约5km，井田面积35.4km2，只采3#层煤且井田面积较大，采用单水平开拓，将井田面积划分为四个带区。煤层平均厚度2.7m，结合斜井、立井的优缺点，决定用主斜副立开拓，主斜井斜长981m，倾角16°，采用胶带运输机运输，实现了井下的连续运输，副立井采用罐笼提升，井下运矿车辅助运输。由于井田面积比较大，考虑后期通风不容易和通风的安全，采用对角式通风，工作面采用U型通风，掘进工作面采用局部通风机通风，压入式通风。带区采用倾斜长壁开采，“三八”制生产，两班生产，一班准备，年生产330天，工作面长度207m，两条风带斜巷宽4.6m，高3.2m，满足通风的要求，为满足高产高效的要求，本次设计本着一井一面的要求，带区只布置一个工作面，一个掘进面，实现全煤巷化，这大大减少了煤炭的损失，提高的产量。关键词：带区；倾斜长壁；对角式；高产高效；煤巷ABSTRACTTheminecoaldesignisaboutthirdcoalseamofDaDougao,whichproductioncapacityis1.2milliontonsannuall.Thelengthofthiscoalseamfromeasttowestisaboutsevenkilometer,fromsouthtonorthisaboutfivekilometer,anditsareais35.4squarekiometers.Beacuseitsareaissolarge,itisdividedintofourparts.Thecoalseamaveragethicknessis2.7meter.Combiningtheadvantagesofshaftandslope,theminecoaldecidedchosingmainsiopeandsideshaftdevepment.Thelengthofmainobliqueis981meters,thetipis16°.Themianobliqueusebeltconveytransportation,reasingthecontionoustransportationinunderground.Theverticaldevepmentusecageimproveandtheorbitlargeroadwayusethecar.Beacusetheeareissolarge,consideringthedifficultyofventilationinfutureandmakingsurethesafety,theminecoaldecideusediagonalventilation,thefaceuseUtypeventioonalandtheheadingfaceuselocalfanventition.Thebandzoneuselongwallmingalongthedip,therearethreeshiftseveryday,for330daysinayear.Thelengthofminingfaceis207metersandthetailenterandheadenter’slengthis4.6meters,widthis3.2meters.Forreasingthehighproductionandhighefficiency,thebandzoneonlyputamingfaceandaheadingface,andtheallhallputincoalseam,thussharplyreducethecoalloss.Keywords:bandzone;longwallmingalongthedig;diagonalventilation;thehighproductionandhighefficiency;minehall目录1井田概述及井田地质特征............................................................................................................11.1井田概述............................................................................................................................11.1.1地理位置、交通条件...........................................................................................11.1.2井田的气候条件...................................................................................................11.1.3井田的水文情况....................................................................................................21.2井田地质特.......................................................................................................................21.2.1区域地质构造简述...............................................................................................21.3设计煤层特征...................................................................................................................31.3.1煤层埋藏条件.......................................................................................................31.3.2煤层的围岩性质...................................................................................................31.3.3煤的特征...............................................................................................................32井田储量和服务年限...................................................................................................................72.1矿井工业储量...................................................................................................................72.2矿井可采储量...................................................................................................................82.3矿井设计生产能力及服务年限.......................................................................................93井田开拓.....................................................................................................................................113.1井田开拓方式的选择.......................................................................................................113.1.1工业广场和井筒的确定......................................................................................113.1.2工业场地的位置..................................................................................................123.1.3开采水平及带区的确定......................................................................................123.1.4开拓方案比较......................................................................................................133.2矿井基本巷道..................................................................................................................153.2.1井筒......................................................................................................................153.2.2主要开拓巷道......................................................................................................204道布带区巷置..............................................................................................................................244.1煤层地质特征.................................................................................................................244..1.1煤层性质.............................................................................................................244.2带区巷道布置及生产系统..............................................................................................244.2.1带区准备方式的确定..