张双楼煤矿1.2Mta新井设计【专题村庄下煤矿开采方案优化方法研究】.docx

1、摘 要本设计包括三个部分：一般设计部分、专题设计部分和翻译部分。一般部分为张双楼矿1.2 Mt/a的新井设计。张双楼煤矿位于江苏省徐州市境内，东有沛屯铁路与陇海线相连，交通十分便利。井田走向（东西）长平均约10.42 km，倾向（南北）长平均约3.16 km，井田水平面积为32.93 km2。主采煤层一层，即7号煤层，平均倾角24，厚约2.5 m。井田工业储量为126.59 Mt，可采储量108.30 Mt，矿井服务年限为60.88 a。井田地质条件简单。表土层平均厚度70 m；矿井正常涌水量为230.5 m3/h，最大涌水量为306.5 m3/h；煤层硬度系数f=2.3，煤质牌号为气煤44；

2、矿井绝对瓦斯涌出量为1.84 m3/min，属低瓦斯矿井；煤层有自燃发火倾向，发火期36个月，煤尘具有爆炸危险性。根据井田地质条件，提出四个技术上可行开拓方案。方案一：立井两水平开采，一水平标高-550m，暗斜井延深至-1000 m水平，岩层大巷；方案二：立井两水平开采，一水平标高-550m，暗斜井延深至-1000 m水平，煤层大巷；方案三：立井两水平开采，一水平标高-550m，暗立井延深至-1000 m水平，岩层大巷；方案四：一水平标高-550m，暗立井延深至-1000 m水平，煤层大巷。通过技术经济比较，最终确定方案一为最优方案。将主采煤层划分为两个水平，因井田走向大断层将井田分为南北两部

3、分，井田南部为一水平服务范围，井田北部为二水平服务范围。设计首采区采用采区准备方式，工作面长度190 m，采用一次采全高采煤法，全部跨落法处理采空区。矿井采用“四六”制作业，三班生产，一班检修。生产班每班3个循环，日进9个循环，循环进尺0.6 m，日产量3636.36 t。大巷采用带式输送机运煤，辅助运输采用1.5 t固定箱式矿车。主井装备一套12 t双箕斗和一套12 t单箕斗带平衡锤提煤，副井装备一对3 t矿车双层单车罐笼带平衡锤担负辅助运输任务。矿井生产初期采用中央并列式通风，后期采用分区域式通风。通风容易时期矿井总需风量3675 m3/min，矿井通风总阻力2286.84Pa，风阻0.6

4、1Ns2/m8，等积孔1.53 m2，矿井通风容易。矿井通风困难时期矿井总风量3675 m3/min，矿井通风总阻力2744.02Pa，风阻0.73 Ns2/m8，等积孔1.40 m2，矿井通风中等困难。专题部分题目是村庄下煤矿开采方案优化方法研究。采用综合分析法以经济收益最大化，地表下沉最小化为最优目标建立数学模型，形成一套完整的评估体系。翻译部分是一篇关于温度对煤炭吸附特性和表面自由能影响的理论研究的论文，英文原文题目为：Influence of temperature on coal sorption characteristics and the theory of coal surf

5、ace free energy.关键词：立井；上下山开采；一次采全高；中央并列式ABSTRACTThis design can be divided into three sections: general design, monographic study and translation of an academic paper.The general design is abouta1.2Mt/a new underground mine design of Zhangshuanglou coal mine. Zhangshuanglou coal mine lies in Xuzhou,

6、 Jiangsu province. As Peitun railway run across the east part of the mining field connect to Longhai railway, the traffic is very convenient. Its about 10.42 km on the strike and 3.16 km on the dip,with the 32.93 km2 total horizontal area. The minable coal seam of this mine is only 7 with an average

7、 thickness of 2.5 m and an average dip of 24. The proved reserves of this coal mine are 126.59 Mt and the minable reserves are 108.30 Mt, with a mine life of 60.88 a.The geological condition of the mine is relatively simple. The normal mine inflow is 230.5 m3/h and the maximum mine inflow is 306.5 m

8、3/h. It is bituminous coal 44 with low mine gas emission rate and coal spontaneous combustion tendency, and its a coal seam liable to explosion.Based on the geological condition of the mine, I bring forward four available project in technology. The first is vertical shaft development with two mining

9、 levels ,the first level is -550m and extension of dimly inclined shaft go to -1000 m,using rock gallery; the second is vertical shaft development with two mining levels.,the first level is -550m and extension of dimly inclined shaft go to -1000 m,using coal gallery; the third is vertical shaft deve

10、lopment with two mining levels,the first level is -550m and the extension of dimly i vertical shaft go to -1000 m,using rock gallery; the last is vertical shaft development with two mining levels, the first level is -550m and the extension of dimly i vertical shaft go to -1000 m,using coal gallery.

11、The first level is at -550 m, The second level is at -1000 m, Because a major fault lies in the center of mine field, the mine field is divided into the north section and the south section, the south section is one level service scope, and the north section is two level service scope.Designed first

12、mining district makes use of the method of preparation in mining area, the length of working face is 190 m, which uses fully-mechanized coal mining technology, and fully caving method to deal with goaf. The working system is “four-six”,with three teams mining, and the other overhauling. Every mining

13、 team makes three working cycle, with nine working cycle everyday. Advance of working cycle is 0.6 m, and quantity of 3636.36 ton coal is makedeveryday.Main roadway makes use of belt conveyor to transport coal resource, and mine car to be assistant transport. Main shaft makes use of skip to transpor

14、t coal resource, when subsidiary shaft makes use of cage to be assistant transport. In the prophase of mining the mine makes use of centralized ventilation method,when in the evening of mining the mine makes use of areas ventilation method. At the easy time of mine ventilation, the total air quantit

15、y is 3675 m3 per minute, the total mine ventilation resistance is 2286.84 Pa, the coefficient of resistance is 0.61 Ns2/m8, equivalent orifice is 1.53 m2. At the difficult time of mine ventilation, the total air quantity is about 3675 m3 per minute, the total mine ventilation resistance is 2744.02 P

16、a, the coefficient of resistance is 0.73 Ns2/m8, equivalent orifice is 1.40 m2. The monographic study is about researching the better way to extract the coal under village .The translated academic paper is about the influence of temperature on coal sorption characteristics and the theory of coal surface free energy.Keywords：shaft; up-dip and down-dip minging; all mining height; centralized juxtapose ventilation. 目 录ABSTRACT一 般