1、 ( 二二一五年六月一五年六月 本科毕业设计说明书本科毕业设计说明书 题题 目 :目 : 同 煤 集 团 四 老 沟 二 矿同 煤 集 团 四 老 沟 二 矿 2 . 4 Mt /a2 . 4 Mt /a 新 井 设 计新 井 设 计 姓姓 名名 : 学学 院院 : 系系 别 :别 : 专专 业 :业 : 班班 级 :级 : 指 导 教 师指 导 教 师 : 摘要摘要 本次设计是大同矿区四老沟矿 11#,14#煤层。该矿位于大同煤田东北端,距 大同市 25Km,距口泉站 5.3Km。井田内有公路贯穿,交通方便。 据井田地质资料:该井田煤层平均厚度 9m,经鉴定为低瓦斯矿井,瓦斯相对 涌出量平均
2、为瓦斯相对涌出量 0.57741.3601 m3/t。m3/t。煤尘有爆炸危险性。煤 的自燃倾向等级为易自燃。 根据矿井涌水量预测, 该矿井正常涌水量为 122.5m3/h。 设计采用主斜副立单水平开拓方式,共开掘有两个进风井(主斜井、副斜井) 和一个回风井。井田共划分有七个带区,开采煤层为 11#。矿井采煤方法为综合机 械化开采方式,综合机械化掘进,生产区队设置有:一个综采队和两个机掘队。 矿井达产时的首采工作面位于一带区 101 首采工作面,该带区划分为 4 个条 带,工作面长度为 240m,推进长度为 1260m,回采顺序采用后退式、回采工艺中 厚煤层单一走向长壁综合机械化采煤法, 采用
3、“三八”制作业制度。 采空区采用全部 跨落法管理顶板。 关键词:矿井开拓、采煤方法、综合机械化采煤、运输提升、安全生产。 Abstract This design is the Da tong mine area four old ditch mine 14#, 11# coal seam. The mine is located in the northeast of Da tong coalfield, from Da tong 25Km, away from the Kou Quan Railway Station 5.3Km. Ida inside the road runs thro
4、ugh, convenient transportation. According to mine geological data: average thickness of 9m in the coal mine, after identification for low gas coal mine, gas relative emission amount of average relative gas emission rate 0.5774 - 1.3601 m3 / T. Coal dust explosion hazard. Spontaneous combustion tende
5、ncy of coal is easy to ignite According to the prediction of mine water, the normal mine inflow is 122.5m3/h. Design of the main inclined side vertical single level to develop, a total of digging has two intake shaft (the main shaft and the auxiliary slope) and a return air shaft. Field is divided i
6、nto seven zones, the coal mining 11#. Coal mining method for comprehensive mechanical of mining method, comprehensive mechanization tunneling and production teams is provided with: a mechanized mining teams and two machines dig team. Mine production of the first mining face in area 101 of the first mining face, the zone is divided into four, working face length to the 240m promote the length of 1260m, stoping sequence by retreating, mining technolo