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1、重庆大学本科学生毕业设计松藻煤电有限责任公司石壕煤矿(1800kt/a)初步设计Preliminarydesign(1800kt/a)ofShihaoCoalMineinSongzaoCoal-ElactricityLimitedLiabilityCompany木次毕业设计为松藻煤电有限责任公司石壕煤矿(1800kt/a)初步设计。该矿井可采煤层为M6、M7、M8三层,煤层为近水平,平均倾角12。;M6煤层平均厚1.37m,M7煤层平均厚1.51m,这两煤层为薄煤层;M8平均厚度为2.97m,为屮厚煤层。煤层属于高瓦斯,煤尘具有爆炸性且煤层
2、具有自燃发火倾向性。本次设计的回采T艺设计煤层为M7。在对石壕煤矿及打通一矿为期一周的毕业实习基础上,以重庆市棊江县石壕煤矿为蓝本,根据该矿山的矿床地质等地质条件和现有生产设备等技术条件,按照国家规程规范等设计文件要求,结合自己所学的知识和所掌握的信息,设计出了比较完整合理的开拓方案。设计中采用斜井加立井多水平上山开拓及冋风斜井综合开拓,多水平上下山分区式布置;初期采用中央分列式通风、冋风斜井回风的形式,这样可以减小初期工程量,并且通风效杲也好;井田两翼布置三个盘区以四个工作面同时开采保证矿井年产量;开采顺序采用盘区前进,区内后退式;倾斜长
3、壁式开采,回采工艺采用综合机械化采煤。并针对高瓦斯、煤尘爆炸性和£1燃发火性设计了瓦斯抽放、防止煤尘爆炸设施和设计短的盘区走向长度等一系列防治措施。关键词:高瓦斯矿井,180万吨/年,近水平屮厚煤层,综采,开拓方式。ABSTRACTTimeofgraduationpracticedesignscapitalforPreliminarydesign(1800kt/a)ofShihaoCoalMineinSongzaoCoal-ElactricityLimitcdLiabilityCompany.Oweamaycutcoaltiltingtie
4、rforM6,M7,threetiersofM8s,coalseamarerelaxed,averagedipangleofshaft12°;TheM6coalscamfavors1.37maveragely,theM7coalscamfavors1.51maveragely,thisliangofcoalseamisaIhinseam;AveragethicknessofM8is2.97m,bebehitbyathickseam.Thecoalseambelongstothehighgas,coaldusthasexplosiveprop
5、ertyandthecoalseamhasautoignitiongettingangrytendentiousness.ThebackstopingprocessdesigncoalseamdesigningthatoriginallytimeisM7.OnthegraduationfieldworkbasistoShihaoandDatongCoalminelastingforofminingindustryweek,takeShihaocoalmineaschiefsource,basistheminera!depositgeolog
6、yrequirementssuchaswaitingforgeologyconditionandnowhavingproductionfacilitybeingamine,sturn,accordingtothatthecountrydirectiverulesnormwaitstodesignthatthedocumcntdemands,betiedinwedlockhavedesignedoutthecomparativelyentirerationaldevelopingscheme-Designmiddleisadopttoshaf
7、ttoaddtheinclinedshaftmuch1evelgoupthehi11developingandreturnairshaftsyntheticaldeveloping,muchlevelthemountainsubareais“boutdyadicarrangement;Initialstageadoptthecentralauthoritymarch-pasttobeventilated,shaftthereturnairform,suchcandiminishinitialstageprojectamounts,effec
8、tbeingventilatedmoreoverallright;Well-fieldbothwingsarrangethreeminingareatoexploitguaran