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1、新密大磨岭煤矿采矿专项初步设计摘要：本设计的井田面积约为16.4平方千米，设计开采煤层为二1煤；井田内煤层赋存比较稳定，煤层倾角7°－15°，平均倾角为11°,煤层平均厚度为厚4.92m，整体地质条件比较简单。该设计矿井为属高瓦斯矿井，涌水量较大，煤层不易自燃，具有爆炸性。矿井设计年产量90万吨，矿井工作采用三八制；根据实际的地质资料情况进行井田开拓和准备方式的初步设计，该矿井决定采用立井一水平暗斜井二水平上山式开采，阶段内采用采区式划分，区段内设计采用综采放顶煤回采工艺，走向长壁采煤法，用全部跨落法处理采空
2、区。矿井采用抽出式通风，通风系统为两翼对角式，副井进风，回风大巷回风；井底车场选用立井刀式环形，井下主要运输选用采用矿车运输，并对矿井运输、矿井提升、矿井排水和矿井通风等各个生产系统的设备选型计算，以及对矿井安全技术措施和环境保护提出要求，完成整个矿井的初步设计。矿井基本实现机械化采煤，采用先进技术和借鉴已实现高产高效现代化矿井的经验，实现一矿一面高产高效矿井从而达到良好的经济效益和社会效益。关键词：立井、、抽出式通风Westernminingcompaniesitwithhimgroupisthriving
3、coalminingspecialpreliminarydesignAbstract:thedesignforthefieldareaisabout8.53675squarekm,designfor21coalminingcoal;Withintheoccurrencecompartmentalizedisstableandthecoalseam24°-26°Anglefor25°,averageinclinationthickcoalseamthickness,average5.88m,wholegeolo
4、gicalconditionissimple.Thedesignoflowgasmineaslarger,coalmine,section,withexplosivenotspontaneouscombustion.90milliontonsinthedesignofmine,mineproductionin38system;Accordingtotheactualsituationofgeologicalinformationcompartmentalizedexplorationandwaystoprep
5、arethepreliminarydesign,thismineshaftdecidedtoadoptaleveldarkportal2levelwentupintothemountaintypemining,stagebyminingtypepartition,withinsectiondesignusinglong-walltopcoalcavinginminingprocess,towardthelongwallminingmethodswithallcrossfellmethod,handlegoaf
6、.Bydrawer-typeventilated,mineventilationsystemforcentralboundarytype,theboundaryintowind,pregroutingwindWellsreturnair;Bottomofverticalannularwheel-drevenchoosesword,downholemajortransittransport,andchoosetoadoptharvestersminetransportation,mineascension,co
7、alminedrainage,andmineventilationetc.Eachproductionsystem,aswellascalculationofequipmenttypeselectionofminesafetytechnicalmeasuresandenvironmentalprotectionrequest,tocompletethewholeminethepreliminarydesign.Coalminebasicrealizemechanization,theadoptionofadv
8、ancedtechnologyandreferencehasrealizedhighyieldandhighefficiency,realizethemodernizationoftheexperienceofamineminemineahighyieldandhighefficiencytoachievegoodeconomicandsocialbenefits.Keywords:Actually
