机械5

设计题目：朱集煤矿0.9 Mt/a新井设计 设计专题题目：淮南矿区瓦斯抽采技术分析 摘要 一般部分针对淮南朱集矿井进行了井型为0.9 Mt/a的新井设计。朱集矿井位于安徽省淮南市境内，井田走向长约7.0 km，倾向长约3.0km，面积约21km2。主采煤层为13-1#煤层，平均倾角2~5°，平均厚度4 m。井田工业储量为116.74 Mt，可采储量73.53 Mt，矿井服务年限为58.46 a。矿井正常涌水量为342 m3/h，最大涌水量为462m3/h；矿井相对瓦斯涌出量为10.3 m3/t，属高瓦斯矿井。 根据井田地质条件，设计采用双立井单水平开拓方式，井田采用采、带区式布置方式，共划分为两个个采区，四个带区，轨道大巷、胶带机大巷和回风大巷皆为岩石大巷，布置在13-1#煤层底板岩层中。考虑到本矿井为高瓦斯矿井，矿井通风方式采用前期中央并列式通风，后期两翼对角式通风，并在开采前预掘底板瓦斯抽排巷进行瓦斯提前卸压抽放。 针对东一采区采用了采区准备方式，共划分13个回采工作面，并进行了通风、运煤、运料、排水、排矸、供电系统设计。 针对13101工作面进行了采煤工艺设计。该工作面煤层平均厚度为4.0 m，平均倾角3°，直接顶为泥岩，老顶为细砂岩。工作面采用长壁综采一次采全高采煤法。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，每天四个循环，循环进尺3.2 m，月推进度96 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9 t箕斗提煤，副井采用一对1.5 t矿车双层四车窄罐笼和一个带平衡锤的1.5 t矿车双层四车宽罐笼运料和升降人员。 专题部分题目为《淮南矿区瓦斯抽采技术分析》，就目前国内外的瓦斯抽采研究情况进行了整理论述，以淮南矿区的高瓦斯现状，淮南处理瓦斯的技术进行了整理，做了简要分析。结合淮南一些实际矿井的技术应用分析了抽采技术。 翻译部分题目为《Optimizatio
n of soft rock e
ngi
neeri
ng with particular refere
nce to coal mi
ni
ng》，主要介绍了现行数值模拟实验中岩体特性参数的选取依据及在工程现场的应用。 关键词：朱集煤矿；双立井；采区布置；中央并列式；综采；大采高；瓦斯抽采 ABSTRACT The ge
neral desig
n is about a 1.50 Mt/a
new u
ndergrou
nd mi
ne desig
n of Zhuji coal mi
ne. Zhuji coal mi
ne is located i
n Huai
na
n, A
nhui provi
nce. It’s about 7.0 km o
n the strike a
nd 3.2 km o
n the dip, with the 21.0 km2 total horizo
ntal area. The mi
nable coal seam is 13-1# with a
n average thick
ness of 4.0 m a
nd a
n average dip of 3°. The proved reserves of this coal mi
ne are 116.74 Mt a
nd the mi
nable reserves are 73.53 Mt, with a mi
ne life of 58.46 a. The
normal mi
ne i
nflow is 342 m3/h a
nd the maximum mi
ne i
nflow is 462 m3/h. The mi
ne gas emissio
n rate is 10.3 m3/t which ca
n be recog
nized as high gas mi
ne. Based o
n the geological co
nditio
n of the mi
ne, this desig
n uses a duel-vertical shaft si
ngle-level developme
nt method, a
nd full strip preparatio
n ,which divided i
nto two worki
ng areas a
nd four ba
ndts, a
nd track roadway, belt co
nveyor roadway a
nd retur
n airway are all rock roadways, arra
nged i
n the floor rock of 13-1# coal seam. Taki
ng i
nto accou
nt of the high gas emissio
n, mi
ne ve
ntilatio
n method use two diago
nal wi
ngs ve
ntilatio
n, a
nd excaves bottom gas drai
nage roadway before mi
ni
ng to relief gas pressure i
n adva
nce. The desig
n applies strip preparatio
n agai
nst the first ba
nd of East O
ne which divided i
nto 13 stirps totally, a
nd co
nducted coal co
nveya
nce, ve
ntilatio
n, ga
ngue co
nveya
nce a
nd electricity desig
ni
ng. The desig
n co
nducted coal mi
ni
ng tech
nology desig
n agai
nst the 13101 face. The coal seam average thick
ness of this worki
ng face is 4.0 m a
nd the average dip is 3°, the immediate roof is mud sto
ne a
nd the mai
n roof is sa
nd sto
ne. The worki
ng face applies fully mecha
nized lo
ngwall full-height coal cavi
ng method, a
nd uses double drum shearer cutti
ng coal which cuts 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 four worki
ng cycles per day, a
nd the adva
nce of a worki
ng cycle is 3.2 m a
nd the adva
nce is 96 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
narrow1.5 t four-car double-deck cage a
nd a wide 1.5t four-car double-deck cage to lift material a
nd perso
n
nel tra
nsportatio
n. The mo
nographic study e
ntitled " Huai
na
n coal mi
ne gas extractio
n tech
nology a
nalysis ", To the prese
nt situatio
n of huai
na
n coal mi
ne gas, huai
na
n processi
ng tech
nology of gas tech
nology arra
nge, makes a brief a
nalysis, the prese
nt research situatio
n this arra
ngeme
nt. Combi
ned with some practical tech
nology of huai
na
n coal mi
ne a
nalysis is applied i
n the extractio
n tech
nology. The title of the tra
nslated academic paper is " Optimizatio
n of soft rock e
ngi
neeri
ng with particular refere
nce to coal mi
ni
ng ". Keywords:Zhuji coal mi
ne; Double vertical shaft; Worki
ng sectio
n; Ce
ntral parallel; Mecha
nized mi
ni
ng; full-height coal cavi
ng; gas extractio
n 目录 一般部分 1矿井概况与地质特征1 1.1井田概况1 1.2井田地质特征2 1.3煤层特征5 2井田境界和储量9 2.1井田境界9 2.2井田地质勘探10 2.3矿井地质储量10 2.4矿井可采储量12 3矿井工作制度、设计生产能力及服务年限15 3.1矿井工作制度15 3.2矿井设计生产能力及服务年限15 4井田开拓17 4.1井田开拓的基本问题17 4.2矿井基本巷道27 5准备方式—采区巷道布置39 5.1煤层地质特征39 5.2采区巷道布置及生产系统39 5.3采区车场选型计算43 6采煤方法46 6.1采煤工艺方式46 6.2首采工作面回采巷道布置58 7井下运输63 7.1概述63 7.2采区运输设备选择64 7.3大巷运输设备选择67 8矿井提升68 8.1矿井提升概述68 8.2主井提升68 8.3副井提升70 9矿井通风及安全72 9.1矿井通风系统的选择72 9.2矿井风量计算74 9.3矿井通风阻力计算82 9.4选择矿井通风设备85 9.6安全灾害的预防措施90 10矿井基本技术经济指标92 参考文献93 专题部分 淮南矿区瓦斯抽采技术分析95 摘要95 1课题研究的背景96 2煤矿瓦斯抽采技术机理的国内外研究现状97 2.1国外研究现状97 2.2国内研究现状97 2.3煤炭科学产能的制约因素分析99 2.4采空区瓦斯抽采对减小回风流及其它抽采方法102 3淮南矿区煤层气抽采技术105 概述105 3.1采场瓦斯治理方法研究105 3.2采动煤岩移动卸压抽采煤层气技术109 3.3强化抽采煤层气技术112 3.4卸压抽采瓦斯理论及煤与瓦斯共采技术115 3.5技术成果及技术经济效益和社会效益120 4结论120 翻译部分 英语原文124 中文译文131 致谢136