毕业设计-张双楼矿1.8mta的矿井设计

《毕业设计-张双楼矿1.8mta的矿井设计》由会员上传分享，免费在线阅读，更多相关内容在学术论文-天天文库。

1、河北理工大学毕业设计摘要摘要本设计为张双楼矿1.8Mt/a的矿井设计。井田走向（东西）长平均约8.23km，倾向（南北）长平均约3.88km，井田水平面积为31.93km2。主采煤层一层，即7号煤层，平均倾角8.9°，厚约5.0m。井田工业储量为226.69Mt，可采储量172.53Mt，矿井服务年限为73.7a。矿井正常涌水量为320m3/h，最大涌水量为340m3/h；矿井绝对瓦斯涌出量为1.84m3/min，属低瓦斯矿井；煤层有自燃发火倾向，发火期3~6个月，煤尘具有爆炸危险性。开拓方案为立井两水平开采，暗斜井延深至-700m水平。

2、大巷采用胶带输送机运煤，辅助运输采用1.5t固定箱式矿车。设计首采区采用采区准备方式，采用一次采全高采煤法，全部跨落法处理采空区。矿井采用中央并列式通风。通风容易时期矿井总需风量4608m3/min，矿井通风总阻力2096Pa，风阻0.35N·s2/m8，等积孔2.03m2，矿井通风容易。矿井通风困难时期矿井总风量4608m3/min，矿井通风总阻力2746Pa，风阻0.46N·s2/m8，等积孔1.77m2，矿井通风中等困难。关键词：立井；上下山开采；大采高；中央并列式I河北理工大学毕业设计摘要ABSTRACTThegeneraldes

3、ignisabouta1.8Mt/aundergroundminedesignofZhangshuangloucoalmine.It’sabout8.23kmonthestrikeand3.88kmonthedip,withthe31.93km2totalhorizontalarea.Theminablecoalseamofthismineisonly7withanaveragethicknessof5.0mandanaveragedipof8.9°.Theprovedreservesofthiscoalmineare226.69Mtan

4、dtheminablereservesare172.53Mt,withaminelifeof73.7a.Thegeologicalconditionofthemineisrelativelysimple.Thenormalmineinflowis320m3/handthemaximummineinflowis340m3/h.Itisbituminouscoal44withlowminegasemissionrateandcoalspontaneouscombustiontendency,andit’sacoalseamliabletoex

5、plosion.Theavailableprojectisverticalshaftdevelopmentwithtwomininglevelsandtheextensionofinclinedshaftgoto-700m.Mainroadwaymakesuseofbeltconveyortotransportcoalresource,andminecartobeassistanttransport.Designedfirstminingdistrictmakesuseofthemethodofpreparationinminingare

6、a,whichusesfully-mechanizedcoalminingtechnology,andfullycavingmethodtodealwithgoaf.Thewayofmineventilationiscentralizedjuxtaposeventilation.Attheeasytimeofmineventilation,thetotalairquantityis4608m3perminute,thetotalmineventilationresistanceis2096Pa,thecoefficientofresist

7、anceis0.355N·s2/m8,equivalentorificeis2.03m2.Atthedifficulttimeofmineventilation,thetotalairquantityisabout4608m3perminute,thetotalmineventilationresistanceis2746Pa,thecoefficientofresistanceis0.465N·s2/m8,equivalentorificeis1.77m2.Keywords：shaft;up-dipanddown-dipminging;

8、largeminingheight;centralizedjuxtaposeventilation.86河北理工大学毕业设计目录86河北理工大学毕业设计目录目录1矿区概述及井田地质特征11.1