南岔煤矿矿井3、5煤层初步设计.doc
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- 煤矿 矿井 煤层 初步设计
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1、南岔煤矿矿井3、5号煤层初步设计摘 要本次是南岔煤矿矿井3、5号煤层初步设计,设计图纸共七张,设计说明书共十章。设计重点为第四、六、九章,其他如井底车场、井章节仅做一般的选型计算。 该矿位于宁武县阳方口镇三岔村东一带,距宁武县城直距8km。行政区划隶属于宁武县阳方口镇管辖。本井田内有多层煤,本次设计为3、5号煤层,平均厚度分别为2m和11.61m。煤层均有煤尘爆炸性,煤层自燃倾向为自燃。矿井属于低瓦斯矿井,瓦斯相对涌出量为2.25m3/t。本井田划分为带区,采用双斜井开拓方式,回采工艺采用一次采全高综合采煤法,采用“四六制”作业制度。工作面的设备有双滚筒采煤机、支撑掩护式液压支架、可弯曲刮板运
2、输机、破碎机、转载机等。采空区采用全部垮落法处理顶板。本矿井设计年产量为120万吨,采用一套综采采全高设备来满足产量的要求。 矿井运输大巷采用胶带运输作为主运输,采用连续牵引车作为辅助运输,矿井通风采用轴流式扇风机,抽出式通风方式。 关键词:瓦斯;顶板管理; 一次采全高iAbstractThis paper mainly designs coal mining of Nancha colliery, No. 3、5 coal bed. There are seven design drawings altogether, and ten chapters in the instruction
3、book. In accordance with requirements and features of mining engineering, we focus on the fourth, sixth and ninth chapters. As for other parts like shaft station, underground transportation and hoisting equipment, this paper only makes general selection calculations.The colliery, an administrative d
4、ivision of Ningwu county, Yang Fangkou town jurisdiction, and 8 kilometers from Ningwu County Seat, lies in the east area of Sancha Cun, Yang Fangkou town, Ningwu county, Shanxi province. Several coal seams lay inside this well field, but this design only takes No. 3、5 into account, which has an ave
5、rage depth of 2 meters and 11.61 meters. Each coal seam has the property of coal dust explosion, and spontaneous combustibility. The mine is a high gassy mine, with a relative gas emission of 2.25 m3/t. We divide this well field into belts, and adopt double vertical shaft method. The retreat type an
6、d The once mining overall height integrated coal mining method are used in the extraction process, with 4/6 system as the operation system. On the work faces are equipments of double roller coal winning machine, Standing shield hydraulic support, bend scraper conveyor, crusher, and elevating conveyo
7、r, etc. The all-fall-down method is applied in roof processing of the worked out section.The annual output of this mine is 1200,000 ton, which is fulfilled by application of a compound mining equipment. The main haulage takes belt conveyor as the major means of transportation, car hauler as the auxi
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