煤矿采矿工程毕业设计.docx
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煤矿采矿工程毕业设计
毕业设计
(说明书)
题目:
石圪节煤矿9号、10号煤层
0.9Mt/a新井设计
姓名:
编号:
()字号
中国矿业大学
二0一五年九月十五日
中国矿业大学成人教育学院
毕业设计(论文)任务书
函授站(点)专业年级2013级采矿工程
学生姓名
任务下达时期:
2015 年 7月 15日
设计(论文)日期:
2015 年 7 月 15 日至 2015 年 9月 15 日
设计(论文)题目:
石圪节煤矿9号、10号煤层0.9Mt/a
新井设计
设计(论文)专题题目:
石圪节煤矿9号、10号煤层0.9Mt/a
新井设计
设计(论文)主要内容和要求:
石圪节煤矿位于沁水煤田东部,南北走向长约5.0公里,东西倾向宽约3.2公里,呈不规则长方形,井田面积约15.6平方公里。
主要开采3、9、10、11号煤层,本设计的对象是9号和10号煤层。
矿井地质储量12029万吨,可采储量8853.34万吨。
矿井服务年限70.26年,设计生产能力90万t/a。
两层煤分别为3.15米、2.52米厚,相距20米,倾角3到6度,距地面200米左右。
采用斜井、单水平、集中大巷开拓方式。
矿井移交生产至达到设计能力时,共开凿3个井筒,即主、副斜井、回风立井。
主斜井装皮带,副斜井铺轨道。
本井田9号煤层划分为6个采区,采用带区式准备。
确定采用倾斜长壁采煤方法开采。
回采工艺采用后退式、一次采全高综合机械化采煤法。
作业制度为“三八制”,两班采煤、一班检修。
工作面的设备有双端可调双滚筒采煤机、液压支架、可弯曲刮板运输机、破碎机、转载机等。
采空区采用全部跨落法管理顶板。
矿井运输大巷采用皮带运输作为主运输,轨道大巷采用连续牵引矿车作为辅助运输。
通风方式为中央并列式通风,主扇工作方式为机械抽出式。
指导教师签字:
中国矿业大学成人教育学院
毕业设计(论文)指导教师评阅书
指导教师评语(包含①基础理论及基本技能的掌握;②独立解决实际问题的能力;③研究内容的理论依据和技术方法;④取得的主要成果及创新点;⑤工作态度及工作量;⑥总体评价及建议成绩;⑦存在问题;⑧是否同意答辩等);
建议成绩:
指导教师签字:
年月日
中国矿业大学成人教育学院
毕业设计(论文)答辩及综合成绩
函授站(点)山西机电专业年级2013级采矿工程学生姓名
说明书93页图纸张其它材料
答辩情况
提出问题
回答问题
正确
基本
正确
有一般性错误
有原则性错误
没有
回答
答辩委员会评语及建议成绩:
答辩委员会主任签字:
年月日
前 言
毕业设计是对大学三年所学知识的一次综合考察,是对学生综合能力的一次系统训练。
本次设计的内容是石圪节煤矿9号、10号煤层新井设计。
是在石圪节煤矿井田概况和地质特征的基础上,结合搜集到的其它相关原始资料、运用所学知识、参考《煤矿开采学》、《煤炭工业矿井设计规范》、《煤矿矿井开采设计手册》等参考资料,在辅导老师深入浅出的精心指导下独立完成。
在设计的过程中我受益非浅。
设计包含说明书和图纸两部分。
内容及结构依《毕业设计大纲》、《毕业论文补充规定及撰写规范》完成。
本设计结合实际、考虑国情、贯彻国策,力求达到矿井设计的终极目标——经济、合理。
通过本次设计,自己各方面能力都有所提高,获益良多。
但自己水平仍然有限,错误疏漏之处恳请各位老师批评指正。
姓名:
---
2015年9月
内容摘要
石圪节煤矿位于沁水煤田东部,南北走向长约5.0公里,东西倾向宽约3.2公里,呈不规则长方形,井田面积约15.6平方公里。
主要开采3、9、10、11号煤层,3号煤层煤尘有爆炸危险。
9#煤层埋藏较浅,瓦斯含量低。
10#煤层瓦斯含量也低。
各层煤自燃性均不强,属于不易自燃煤层。
本设计的对象是9号和10号煤层。
矿井地质储量12029万吨,可采储量8853.34万吨。
矿井服务年限70.26年,设计生产能力90万t/a。
两层煤分别为3.15米、2.52米厚,相距20米,倾角3到6度,距地面200米左右。
采用斜井、单水平、集中大巷开拓方式。
沿井田走向布置三条大巷,回风大巷布置在9号煤层,水平标高820m,运输大巷、轨道大巷布置在10号煤层,水平标高800m。
矿井移交生产至达到设计能力时,共开凿3个井筒,即主、副斜井、回风立井。
主斜井装皮带,副斜井铺轨道。
矿井移交生产时总工期为两年。
工业广场位于井田中部。
本井田9号煤层划分为6个采区,采用带区式准备。
设计采用倾斜长壁采煤方法开采。
回采工艺采用后退式、一次采全高综合机械化采煤法。
作业制度为“三八制”,两班采煤、一班检修。
工作面的设备有双端可调高式双滚筒采煤机、液压支架、可弯曲刮板运输机、破碎机、转载机、顺槽皮带等。
采空区采用全部跨落法管理顶板。
矿井运输大巷采用皮带运输作为主运输,轨道大巷采用连续牵引矿车作为辅助运输,通风方式为中央并列式通风。
矿井总风量为46m3/s,主扇工作方式为机械抽出式,风机型号为:
FBDCZ-14-No26,n=430r/min,电机功率为110*2KW。
关键字:
斜井带区式倾斜长壁采煤方法
前言····························································Ⅰ
内容摘要···························································Ⅱ
第一章井田概况和地质特征········································1
第一节矿区概况············································1
1、矿区地理位置及交通条件······························1
2、矿区的地形与气象···································2
第二节井田地质特征·······································2
1、综述················································2
2、煤系地层···········································2
3、井田水文地质概况···································5
第三节煤层的特征·····································7
1、煤层·············································7
2、煤层对比··········································10
3、煤质··············································10
4、瓦斯、煤尘、自燃性、地温··························12
第四节水源情况·····································13
第五节电源情况·····································13
第二章井田境界与储量········································14
第一节井田境界···········································14
第二节地质储量的计算····································14
第三节可采储量的计算····································15
第三章矿井工作制度及生产能力·································17
第一节矿井工作制度······································17
第二节矿井生产能力及服务年限····························17
第四章井田开拓··············································18
第一节井田开拓的基本问题································18
1、井田开拓方式的确定································18
2、开拓方案的技术经济比较····························19
第二节达产时的盘区数目、位置和工作面生产能力计算·····20
第三节矿井基本巷道···································21
1、井筒··············································21
2、井底车场······································26
3、主要开拓巷道······································27
第四节巷道掘进·····································29
1、巷道断面和支护形式·······························29
2、掘进工作面数目及装备···························29
3、矿井生产时的采掘比例关系,掘进率的预计············30
第五章准备方式——采(盘)区巷道布置·······················31
第一节煤层的地质特征·································31
第二节采(盘)区巷道布置及生产系统·····················31
1、采(盘)区巷道位置·······························31
2、巷道布置·········································32
3、采(盘)区生产系统·····························32
第三节采(盘)区车场选型设计··························33
1、采(盘)区车场形式··························33
2、采(盘)区车场设备··························33
第六章采煤方法···········································34
第一节采煤方法的选择···································34
1、采煤方法的选择··································34
2、采煤工艺的确定··································34
3、工作面主要设备选型·····························34
4、工作面长度、采高及推进度的确定·················37
5、盘区及工作面采出率························39
6、生产时主要材料消耗指标························39
第二节确定采(盘)区巷道布置和要素·····················40
第三节回采工艺及劳动组织·····························40
1、回采工艺········································40
2、劳动组织········································42
第四节采(盘)区的准备与工作面接替······················42
第七章井下运输···········································43
第一节运输系统和运输方式的确定·························43
第二节运输设备的选择··································43
1、矿车、材料车和人车·······························43
2、主运输方式选择··································43
3、辅助运输方式选择··································43
第三节主运输设备选型··································45
1、设计依据··································45
2、选型··································47
第四节辅助运输设备选型·····························51
1、大巷辅助运输设备·····························51
2、人员运输··································53
3、矿车··································54
第八章矿井提升···········································55
第九章矿井通风与安全······································56
第一节风量的计算·······································56
1、矿井总风量的计算······························56
第二节矿井通风系统和风量分配···························59
1、拟定矿井通风系统································59
2、矿井总风量分配原则及方法························59
3、风量的分配·······································60
第三节计算负压及等积孔··································60
1、计算原则·········································60
2、计算方法·········································61
第四节选取主扇风机·····································63
1、选择主扇········································63
2、选择电动机·······································63
第五节安全生产技术措施·································64
1、矿山救护······································64
2、矿井保健设施····································64
3、煤尘爆炸的防治措施·······························65
4、煤与瓦斯突出的预防措施···························65
5、矿井水灾预防措施································67
6、火灾预防措施····································69
7、预防冒顶事故的措施······························72
8、避难硐室和避灾路线······························73
第十章矿井基本经济技术指标······························78
第一节矿井设计概算···································78
1、井巷工程概算的编制依据··························78
2、井巷工程概算的编制方法··························79
3、矿建工程费用的计算方法··························80
第二节劳动定员和劳动生产率························80
1、定员范围·······································80
2、定员依据·······································80
3、定员方法·······································81
4、计算劳动生产率·································82
第三节原煤生产成本·································82
1、煤矿生产经营成本计算···························82
2、折旧费·································83
3、维简费·································83
4、摊销费·································83
5、安全费用·································83
第四节主要技术经济指标·································84
参考文献·····················································88
致谢·····················································89
第一章井田概况及地质特征
第一节矿区概况
一、矿区地理位置及交通条件
井田位于山西长治市北32.5公里,地跨长治郊区和潞城县,隶属长治市管辖,是潞安矿区最早的一对生产矿井。
根据潞煤地字(1987)第26号文,山西省政府晋政发(1984)第14号文,结合潞煤生、地字(1988)第198号文,确定石圪节煤矿9号及10号煤层边界。
南北走向长约5.0公里,东西倾向宽约3.2公里,呈不规则长方形,井田面积约15.6平方公里。
石圪节矿交通条件尚为方便。
铁路专用线至长治北站与太焦铁路线接轨,相距15公里,矿区公路与太长公路相连。
矿区对外交通有太(原)焦(作)铁路、邯(郸)长(治)铁路和太(原)洛(阳)公路。
太焦铁路经矿区东部由北向南通过,太焦铁路的夏店站距潞矿集团约7km,距五阳站16km。
以夏店站为起点距太原市约230km,距焦作市约204km,距邯郸市约216km。
交通比较方便。
图1.1交通位置示意图
二、矿区的地形与气象
本区属典型大陆性气候,干燥多风,四季分明,年平均气温8.9℃,日最高气温37.4℃,最低气温-29.1℃。
年平均降水量为583.3mm,最大917.0mm,最小414.0mm,雨季集中在7、8、9三个月,日最大降水量109.7mm。
年平均蒸发量为1755.3mm(高于降水量2.01倍);最高为1996.3mm,最低为1502.1mm。
年主导风向为西北风,夏季风向为东南风,最大风速为17m/s,最大风压为350Pa。
冰冻期为每年10月末到翌年4月,最大冻土深度为0.75m。
第二节井田地质特征
一、综述
潞安矿区位于沁水煤田东翼中部,地处我国东部新华夏系第三隆起带中段西缘,即太行山西麓。
东西分别受二级构造带即晋—获褶带和武—阳凹褶带控制。
区内总体为一复式向斜,由一系列次一级的宽缓的向、背斜和断裂带组成。
地层走向呈南北,倾向西,倾角平缓,多在3度—6度间,呈一单斜构造。
二、煤系地层
石圪节井田大部分地区为第四系表土层所覆盖,仅在冲沟处岩零星出露,基本为一全掩盖区。
根据钻孔揭露,地层由老至新有:
1)奥陶统峰峰组(O2F);
2)中石炭统本溪组(C2B)
3)上石炭统太原组(C2T);
4)下二迭统山西组(P1S);
5)下二迭统下石河子组(P2X);
6)上二迭统上石河子组(P2S);
7)第四系(Q)。
其中上石炭统太原组和下二迭统山西组为主要含煤地层,合称石炭二迭纪含煤岩系。
厚度巨大的中奥陶统地层为煤系沉积之底,上下石河子组及第四系表土层为煤系上覆盖层。
下面仅就煤系地层叙述于后:
石炭系上统太原组(C2T)
此组与下伏的本溪组为连续沉积,为井田内主要含煤地层之一。
厚度为101.02——127.47米,平均113.41米。
底部以一层厚约2.7米的细砂岩——K1砂岩(相当于太原西山晋祠砂岩)作为太原组与本溪组之分界,其间为整合接触关系。
本组地层为典型的海陆交互相含煤沉积,旋迥结构明显,岩性每旋迥多由灰岩、泥岩、砂岩和煤层组成,共有四个沉积旋迥,有标志层石灰岩四层即K2、K3、K4、和K5石灰岩,含煤6——11层,尤以下部煤炭发育较好,含煤系数为6.52%。
本组地层含植物化石。
各标志层特征如下:
K1砂岩——灰、灰白色,岩性为具花岗变晶结构的中细粒石英砂岩,桂质胶结,岩性不稳定,有时相变为砂质泥岩或泥岩,其底板距15-3号煤约9.66米。
K2灰岩——灰深灰色,隐晶质,含星散状黄铁矿颗粒及燧石结核,产蜓类和腕足类化石及其碎片,厚2.2—17.95米,平均厚7.78米。
层位稳定,是太原组中下部可靠对比标志,亦为13号煤层的直接顶板。
下距15-3号煤约11.13米。
K3灰岩——第二层灰岩,深灰色,隐晶质,含动物化石碎片,厚1.36——4.77米,全区普遍发育,为12号煤层的直接顶板,上距11号煤约4.25米。
K4灰岩——第三层石灰岩,深灰色,隐晶质,略含泥质,并含少量黄铁矿及动物化石,厚3.38—5.97米,平均厚4.85米。
层位稳定。
为一不可采的薄煤层直接顶板,上距9号煤、10号煤约16.94米及5.74米,下距11号煤约4.78米。
K5灰岩——第四层石灰岩,灰色、隐晶质,含少量黄铁矿及动物化石碎片。
厚0—4.11米,平均3.20米。
为局部发育的8号煤层的直接顶板。
下距9#、10#煤层分别为13.26及23.94米。
1迭系下统山西组(P1S)
连续沉积于太原组地层之上,为本区主要含煤地层之一,岩性为一套由砂岩、砂质泥岩、泥岩及煤层组成的河流湖泊、泥岩沼泽等陆相沉积。
颜色由下部为深灰、灰黑色的含煤地层,向上逐渐变为浅灰、灰白色为主,表明古气候逐渐由潮湿变为干燥,不利于成煤。
本厚组26.13—91.01米,平均67.70米,含煤1—3层,总厚度7.08米,含煤系数为10.46%。
3号煤层位于本组中下部,厚度