机械5

岱庄煤矿1.2Mt/a新井设计 摘要 一般部分针对岱庄煤矿进行了井型为1.2 Mt/a的新井设计。岱庄煤矿位于山东省济宁市境内。煤层厚度平均2.9m，平均倾角都为3°。井田工业储量为160.23 Mt，可采储量124.5 Mt，矿井服务年限为79.8a。矿井正常涌水量为378 m3/h，最大涌水量为400 m3/h；矿井属低瓦斯矿井。 根据井田地质条件，设计采用立井单水平开拓方式，带区式布置方式，共划分为5个带区，水平标高-500 m。轨道大巷、胶带机大巷皆为岩石大巷，布置在煤层底板岩层中。 一带区共划分12个分带工作面，并进行了运煤、通风、运料、排矸、供电系统设计。带区服务年限16年。 对工作面进行了采煤工艺设计。该工作面煤层平均厚度为2.9m，平均倾角3°，直接顶为粘土砂岩，老顶为细砂岩。工作面采用长壁综采一次采全高的采煤方法。采用双滚筒采煤机割煤，往返一次割两刀。采用“三八制”工作制度，截深0.8 m，每天六个循环，循环进尺4.8 m，月推进度144 m。 大巷采用胶带输送机运煤，辅助运输采用蓄电池式电机车牵引固定箱式矿车。主井采用两套带平衡锤的16 t箕斗提煤，副井采用一对1.5 t矿车双层四车宽罐笼运料和升降人员。 专题部分题目是《厚煤层分层开采及巷道合理位置确定模拟分析》，经过查阅大量资料和结合实验所得结论，认为本文所提出的确定厚煤层下分层煤层回采巷道合理位置的方法是可行的，研究结果对类似条件下巷道合理布置具有一定的指导意义。 翻译部分题目为《Tech
nology for Tomorrow a
nd Equipme
nt Selectio
n for I
ndia Coal Mi
nes》。 关键词：岱庄煤矿；立井单水平；带区布置；综采大采高；中央边界式；厚煤层；分层开采； ABSTRACT The ge
neral desig
n is about a 1.2Mt/a
new u
ndergrou
nd mi
ne desig
n of Daizhua
ng coal mi
ne. Daizhua
ng coal mi
ne is located i
n Ji
ni
ng, Sha
ndo
ng provi
nce. The mi
nable coal seam are 2.9m ，the average dip is 3°. The proved reserves of this coal mi
ne are 311.4 Mt a
nd the mi
nable reserves are 124.5 Mt, with a mi
ne life of79.8 a. The
normal mi
ne i
nflow is 378 m3/h a
nd the maximum mi
ne i
nflow is 400 m3/h. The mi
ne ca
n be recog
nized as low gas mi
ne. Based o
n the geological co
nditio
n of the mi
ne, this desig
n uses vertical shaft si
ngle-level developme
nt method, both district a
nd strip preparatio
n ,which divided i
nto 5 totally, The level is at -500 m .track roadway, belt co
nveyor roadway a
nd retur
n airway are all rock roadways, arra
nged i
n the floor rock of coal seam. Taki
ng i
nto accou
nt of the high gas emissio
n, mi
ne ve
ntilatio
n method use ce
ntral bou
ndary ve
ntilatio
n i
n earlier stage a
nd combi
ned ve
ntilatio
n, excaves bottom gas drai
nage roadway before mi
ni
ng to relief gas pressure i
n adva
nce. The desig
n apply strip preparatio
n agai
nst the first ba
nd of O
ne which divided i
nto 12 stirps totally, a
nd co
nducted coal co
nveya
nce, ve
ntilatio
n, ga
ngue co
nveya
nce a
nd electricity desig
ni
ng. It’s life is 16 a. The desig
n co
nducted coal mi
ni
ng tech
nology desig
n agai
nst the worki
ng face. The coal seam average thick
ness of this worki
ng face is 2.9 m a
nd the average dip is 3°, the immediate roof is day sa
ndsto
ne a
nd the mai
n roof is sa
nd sto
ne. The worki
ng face apply fully-mecha
nized lo
ng-wall full-height coal cavi
ng method, a
nd usi
ng double drum shearer cutti
ng coal which cutti
ng twice each worki
ng cycle. “Three-Eight” worki
ng system has bee
n used i
n this desig
n a
nd the depth-web is 0.8 m with six worki
ng cycles per day, a
nd the adva
nce of worki
ng cycles is 4.8 m per day a
nd 144 m per mo
nth. Mai
n roadway makes use of belt co
nveyor to tra
nsport coal resource, a
nd battery locomotive to be assista
nt tra
nsport. The mai
n shaft uses double 16 t skips to lift coal with a bala
nce hammer a
nd the auxiliary shaft uses a twi
ns wide 1.5t four-car double-deck cage to lift material a
nd perso
n
nel tra
nsportatio
n. Special sectio
n titled《Roadway seam slice mi
ni
ng a
nd simulatio
n a
nalysis to determi
ne a reaso
nable positio
n》, havi
ng access to large amou
nts of data a
nd bi
ndi
ng experime
nts co
ncluded that the determi
natio
n of the proposed coal seam roadway u
nder the tiered approach is reaso
nable a
nd feasible locatio
n the fi
ndi
ngs of a similar arra
ngeme
nt u
nder the roadway has some reaso
nable guida
nce. Tra
nslatio
n of part of the topic《Tech
nology for Tomorrow a
nd Equipme
nt Selectio
n for I
ndia Coal Mi
nes》. Keywords:Daizhua
ng coal mi
ne; vertical shaft si
ngle-level; ba
nd mode; large mi
ni
ng height; ce
ntral bou
ndary ve
ntilatio
n; Thick coal seam; slice mi
ni
ng; 目录 1矿区概述及井田地质特征1 1.1矿区概述1 1.1.1交通位置1 1.1.2地形、地貌1 1.1.3河流及水体1 1.1.4气象地震2 1.1.5矿井四邻关系2 1.2井田地质特征3 1.2.1井田地质构造3 1.2.2水文地质3 1.3煤层特征4 1.3.1煤层4 1.3.2煤层顶底板4 1.3.3煤的特征7 2井田境界及储量8 2.1井田境界8 2.1.1井田境界8 2.1.2开采界限8 2.2矿井工业储量8 2.3矿井可采储量9 2.3.1安全煤柱留设原则9 2.3.2矿井永久保护煤柱损失量10 2.3.2矿井可采储量： 11 3矿井工作制度、设计生产能力及服务年限12 3.1矿井工作制度12 3.2矿井设计生产能力及服务年限12 3.2.1矿井生产能力12 3.2.2矿井服务年限12 4井田开拓14 4.1井田开拓的基本问题14 4.1.1确定井筒形式、数目、位置及坐标14 4.1.2工业场地的位置15 4.1.3主要开拓巷道15 4.2开拓方案比较15 4.2.1提出开拓方案15 4.2.2进行经济比较17 4.3矿井基本巷道20 4.3.1井筒20 4.3.2井底车场及硐室24 4.3.3大巷26 4.3.4巷道支护31 5准备方式—带区巷道布置32 5.1煤层地质特征32 5.1.1采区位置32 5.1.2采区煤层特征32 5.1.3煤层顶底板岩石构造情况32 5.1.4水文地质32 5.1.5地质构造32 5.1.6地表情况32 5.2带区巷道布置及生产系统32 5.2.1带区准备方式的确定32 5.2.2带区巷道布置32 5.2.3带区生产系统33 5.2.4带区生产能力及采出率33 6采煤方法35 6.1采煤工艺方式35 6.1.1带区煤层特征及地质条件35 6.1.2确定采煤方法35 6.1.3回采工作面参数36 6.1.4回采工作面采煤机、刮板输送机选型37 6.1.5采煤工作面支护方式39 6.1.6端头支护及超前支护方式41 6.1.7各工艺过程注意事项42 6.1.8采煤工作面正规循环作业43 6.2首采工作面回采巷道布置45 6.2.1回采巷道布置方式45 6.2.2回采巷道参数45 7井下运输51 7.1概述51 7.1.1井下运输设计的原始条件和数据51 7.1.2运输距离和货载量51 7.1.3矿井运输系统52 7.2带区运输设备选择52 7.2.1设备选型原则52 7.2.2带区设备的选型52 7.2.3带区运输能力验算54 7.3大巷运输设备选择55 8矿井提升57 8.1矿井提升概述57 8.2主井提升57 8.2.1箕斗57 8.2.2提升机57 8.2.3钢丝绳技术特征58 8.2.4提升能力验算58 8.3副井提升60 9矿井通风及安全62 9.1矿井通风系统的选择62 9.1.1矿井通风系统的基本要求62 9.1.2矿井通风系统的确定62 9.1.3采区通风系统的确定63 9.2矿井风量计算64 9.2.1通风容易时期和通风困难时期采煤方案的确定64 9.2.2各用风地点的用风量和矿井总用风量68 9.2.3风量分配及风速验算71 9.2.4通风构筑物72 9.3矿井通风阻力计算72 9.3.1计算原则73 9.3.2矿井最大阻力路线73 9.3.3矿井通风阻力计算73 9.4选择矿井通风设备77 9.4.1选择主要通风机的基本原则77 9.4.2通风机风压的确定77 9.4.3主要通风机工况点79 9.4.4主要通风机的选择及风机性能曲线80 9.4.5电动机选型82 9.6安全灾害的预防措施82 9.6.1预防瓦斯和煤尘爆炸的措施82 9.6.2预防井下火灾的措施83 9.6.3防水措施83 10矿井基本技术经济指标84 参考文献85 致谢86