山西煤运集团石碣峪煤矿11号煤层开采设计.doc
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- 山西 集团 石碣峪 煤矿 11 煤层 开采 设计
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1、摘 要本次毕业设计内容是石碣峪煤矿11煤层。位于朔州市朔城区沙楞河乡上石碣峪村南约500m处。井田面积6.2997Km2.该煤层年设计能力90万吨,服务年限为12年。煤层厚度为2.44m煤层平均倾角为0-10。矿井通风方式为中央分列式,采用抽出式通风。新鲜风流从主副井进入,污风从风井抽出,工作面通风方式为U型通风。对于矿山安全生产,矿井实现机械化,并采取了一系列防火,防瓦斯,防顶板的安全技术措施。井下用输送带输送机运煤,无轨胶轮车为辅助运输设备。此次设计矿井采用盘区式开采,整个井田分为三个盘区,首采工作面布置在1101区域,工作面长度为200m。采用后退式的回采顺序,回采工艺为综合机械化采煤,
2、剩下的边角煤用炮采。矿井的工作制度定为“四六制”,采空区的顶板采用全部垮落法处理。矿井的机械设备均严格进行选择,采煤机采用无链电牵引采煤机,采高为3.8m,截深为0.8m。关键词:综合机械化;采空区处理;中央分列式通风;全部垮落法ABSTRACTThis graduation project is about the no. 11 coal seam of shijie valley coal mine. It is located about 500 meters south of shijie valley village, shangshi jie village, sharianhe
3、township, shuocheng district, shuozhou city. The well field area is 6.2997Km2. The annual design capacity of the coal seam is 900,000 tons and the service life is 12 years. Coal seam thickness of 2.44 m average coal seam dip Angle of 0 to 10 .The mine ventilation mode is the central march-past, and
4、the extraction ventilation is adopted. Fresh air flow enters from the main auxiliary shaft, and dirty air is drawn out from the air shaft. The ventilation mode of working face is u-shaped ventilation.For the mine safety production, the mine realizes mechanization, and has adopted a series of fire pr
5、evention, gas prevention, roof safety technical measures. Coal is transported by underground conveyor belt conveyor, and the trolley is the auxiliary transportation equipment. In this design, the whole well field is divided into three disc areas. The first mining face is arranged in area 1101 and th
6、e working face length is 200m. The reverse mining sequence is adopted, and the recovery process is comprehensive mechanized coal mining, and the remaining corner coal is gunned.The working system of the mine is set as four or six systems, and the roof of the goaf is treated by the collapse method. T
7、he mechanical equipment of the mine is strictly selected, and the coal mining machine adopts no-chain electric traction shearer with a height of 3.8m and a depth of 0.8m.Key words: comprehensive mechanization; Goaf treatment; Central march-past ventilation; Total collapse method目 录1井田概况及井田地质特征11.1井田
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