楼矿1.8 Mta的矿井设计毕业设计

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1、 I 摘摘 要要 本设计为张双楼矿 1.8 Mt/a 的矿井设计。井田走向（东西）长平均约 8.23km，倾向 （南北）长约 3.88km，井田水平面积为 31.93km 2。主采煤层一层，即 7 号煤层，平均倾 角 8.9，厚约 5.0m。井田工业储量为 226.69 Mt，可采储量 172.53Mt，矿井服务年限为 73.7a。 矿井正常涌水量为 320m 3/h，最大涌水量为 340 m3/h；矿井绝对瓦斯涌出量为 1.84 m 3/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。 开拓方案为立井两水平开采，暗斜井延深至-700m 水平。大巷采用胶带输送

2、机运煤， 辅助运输采用 1.5 t 固定厢式矿车。 设计首采区采用采区准备方式，采用一次采全厚采煤法，全部跨落法处理采空区。 矿井采用中央并列式通风。通风容易时期矿井总需风量 4608 m 3/min，矿井通风总阻 力 2096 Pa，风阻 0.35 Ns 2/m8，等积孔 2.03m2，矿井通风容易。矿井通风困难时期矿井 总风量 4608 m 3/min，矿井通风总阻力 2746 Pa，风阻 0.46 Ns2/m8，等积孔 1.77m2，矿 井通风中等困难。 关键词关键词：立井；上下山开采；大采高；中央并列式 III Abstract The general design is about

3、a 1.8 Mt/a underground mine design of Zhangshuanglou coal mine. Its about 8.23km on the strike and 3.88 km on the dip,with the 31.93km 2total horizontal area. The minable coal seam of this mine is only 7 with an average thickness of 5.0 m and an average dip of 8.9. The proved reserves of this coal m

4、ine are 226.69 Mt and the minable reserves are 172.53 Mt, with a mine life of 73.7a. The geological condition of the mine is relatively simple. The normal mine inflow is 320m 3/h and the maximum mine inflow is 340m3/h. It is bituminous coal 44 with low mine gas emission rate and coal spontaneous com

5、bustion tendency, and its a coal seam liable to explosion. The available project is vertical shaft development with two mining levels and the extension of inclined shaft go to -700m. Main roadway makes use of belt conveyor to transport coal resource, and mine car to be assistant transport. Designed

6、first mining district makes use of the method of preparation in mining area, which uses fully-mechanized coal mining technology, and fully caving method to deal with goaf. The way of mine ventilation is centralized juxtapose ventilation.At the easy time of mine ventilation, the total air quantity is 4608 m 3 per minute, the total mine ventilation resistance is 2096 Pa, the coefficient of resistance is 0.355 Ns 2/m8, equivalent orifice is 2.03 m2. At the difficult time of mine ventil