孟津煤矿采矿专项初步设计.doc
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- 孟津 煤矿 采矿 专项 初步设计
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1、摘 要孟津煤矿位于河南省孟津县横水镇境内,东距孟津县城15km,南距新安县城约27km,区内交通方便。井田走向长约7.0km,倾向宽约5.6km,面积约40km2。设计矿井生产能力120万吨/年,采用立井开拓,井田中央布置三个立井,分别为主井,副井,中央风井;设两个水平开拓全井田,一水平标高定在-350m,二水平标高定在-500m。一水平通过暗斜井与二水平联系。井田内煤层倾角410,首采区煤层倾角为4左右,属近水平煤层。带区开采顺序为先近后远,工作面采用俯斜采煤,后退式开采。根据矿井开拓方案,矿井初期为中央并列式通风系统,副井进风,中央风井回风。后期在井田西翼、南翼,分别布置回风井。设计倾斜长
2、壁采煤法,后退式回采顺序,采用全部垮落法处理采空区。主井采用箕斗提升,副井采用罐笼提升。大巷运煤采用胶带运输,实现了全矿井的连续运输,完成整个矿井的初步设计。 关键词: 煤矿开采; 开拓; 带区; 开采水平; 准备方式;Abstract Mengjin Coal Mine is located in Hengshui Town, Mengjin County of Henan Province. Its 15km east to Mengjin County and 27km south to Xinan County. The transportation is very convenien
3、t. The length of the mine field on strike is ca.7 km, ca.5.6km in width on incline and the area is ca.40 km2. The designed annual production capacity is 1.20 Mt of the coal mine which is using vertical shaft development. Three shafts which are assigned in the center of the mine field are main shaft,
4、 auxiliary shaft and air shaft. Two mining levels are set to develop the whole mine field, first mining level is set at -350 m and the second mining level is set at -500 m. The first mining level contacts with the second mining level via blind slope. The dip angle of coal seam in the mine field is 4
5、10. The dip angle of first mining area is 4, which means it belongs to flat seam. The order of the strips mining is first far then near, using down-dip and retreating mining at working face. According to the mine development plan, preliminary stage of shaft is central abreast ventilation system, air
6、 intake via auxiliary shaft, air return via air shaft. At later stage return air shafts are assigned on the west and south of the mine field. Longwall mining to the dip or to the rise , retreating order.and use all across to fall a method processing to adopt empty aerea . Skip hoisting is used in ma
7、in shaft and cage hoisting is used in auxiliary shaft. Belt is used for coal transportation ,and whole mine continuous transportation is realized. complete the preliminary design of mine.Keywords: Coal Mining; Development; Strip; Mining level; Preparation; 目 录 1 矿区概述及井田地质特征11.1 矿区概述11.1.1 交通位置11.1.2
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