孙家壕煤矿3.0Mta新井设计.docx
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- 孙家壕 煤矿 3.0 Mta 设计
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1、摘 要一般部分主要针对孙家壕煤矿进行了井型为3.0 Mt/a的新井设计。朱集矿井位于内蒙古自治区准格尔旗境内,井田走向长约7.0 km,倾向长约3.5km,面积约18.9km2。主采煤层为6#煤层,平均倾角27.25,平均角度3.87,平均厚度17.25 m。井田工业储量为414.422 Mt,可采储量315.16 Mt,矿井服务年限为75.03 a。矿井正常涌水量为70 m3/h,最大涌水量为120m3/h;煤层瓦斯涌出量低,属低瓦斯煤层。煤层自燃倾向等级为三类不易自燃;煤尘均具有爆炸危险。根据井田地质条件,设计采用双斜井单水平开拓方式,井田采用盘区和带区式布置方式,共划分为三个采区,一个带
2、区。设置轨道大巷、胶带机大巷和回风大巷,分别布置在6#煤层底板和顶板中。矿井通风方式采用中央并列式通风。 针对东三盘区采用了盘区准备方式,共划分12个回采工作面。大巷采用胶带输送机运煤,辅助运输采用无轨脚轮车。主井采用倾角为22的胶带输送机,副井采用单钩串车提升材料和人员。专题部分题目为房柱式开采已采煤层的露天开采可行性研究,就目前国内外的煤柱回收的情况研究情况进行了整理论述,主要针对内蒙古早起房柱式开采遗留煤柱的回收技术进行了论述和研究。翻译部分题目为3D numerical modeling of longwall mining with top-coal caving,主要利用三维技术模
3、拟长壁式放顶煤技术。关键词:孙家壕煤矿;双斜井;盘区布置;中央并列式;综采;放顶煤;煤柱回收ABSTRACTThe general design is about a 3.0 Mt/a new underground mine design of Sun Jiahao coal mine. Sun Jiahao coal mine is located in Zhungeerqi, inner Mongolia. Its about 7.0 km on the strike and 3.5 km on the dip, with the 18.9 km2 total horizontal ar
4、ea. The minable coal seam is 6# with an average thickness of 17.25 m and an average dip of 3.87. The proved reserves of this coal mine are414.422 Mt and the minable reserves are 315.16 Mt, with a mine life of 75.03 a. The normal mine inflow is 70 m3/h and the maximum mine inflow is 120 m3/h. Sun Jia
5、hao coal mine divided into three working areas and one bandts, and track roadway, belt conveyor roadway and return airway are all mine roadways, arranged in the floor mine of 6# coal seam. The design applies strip preparation against the first band of East One which divided into 12 stirps totally, a
6、nd conducted coal conveyance, ventilation, gangue conveyance and electricity designing.The design conducted coal mining technology design against the 6304 face. Main roadway makes use of the 22 belt conveyor to transport coal resource, and car to be assistant transport. The main shaft uses The monog
7、raphic study entitled Open-cut mining to recover coal pillar byRoom and pillar mining ,The title of the translated academic paper is 3D numerical modeling of longwall mining with top-coal caving .Keywords:Sun Jiahao coal mine; Double slope shaft; Panel layout; Central parallel; Mechanized mining; to
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