采矿工程毕业设计（论文）-宁夏煤业集团灵新煤矿2#矿井初步设计.doc

宁夏煤业集团灵新煤矿2#井初步设计
摘要
本设计是对宁夏灵新煤矿14#煤层所作的矿井初步设计。灵新煤矿自然地质条件稳定,14#煤层属特厚煤层,。矿井瓦斯涌出量小,为低瓦斯矿井,煤尘具有爆炸危险性, 煤层具有自燃发火倾向,矿井涌水量较小。设计采用立井单水平上、下山式开拓,采区式准备,综合机械化放顶煤开采。主要对矿井开拓方式、准备方式和采煤方法进行了初步设计,对矿井运输、提升、通风、排水等生产系统进行了描述和设备选型计算。设计时根据现有经济技术条件,尽可能采用先进的开采技术和设备,对矿井提出了一些安全技术措施,并针对矿山污染提出了一些防治措施。
关键词: 煤矿矿井初步设计低瓦斯矿井煤尘爆炸危险煤层自燃发火立井开拓
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ABSTRACT
This design work is the first step design in mineral well for the 14# coal layer in the Lingxin coal mine in Ningxia. Lingxin mine has a stable natural geology condition, and 14# coal layer belongs to thick coal seam especially, average thickness m. The mineral gas gushes quantity small, so it belongs to a low gas mineral well, and the coal dust has an explosion risk. The coal layer is inclined to causing fire, and the mineral well flows out a little water. The design adopts single level up to the well, a mountain type to expanding, an area type to preparing, and synthesize mechanization to mine. This design is the first step for the expanding way, preparing way and exploring way. This paper also describes the well conveyance, promotes well ventilated, drains etc. and calculates the equipments. Adopt technique and equipments of mine according to the existing and economic technique condition while design; put forward some safe technique measure to the mineral well, and put forward some prevention and cure measure to the mineral pollution.
Keyword: Coal mine; The first step for the mineral design; Mineral well of low gas; The dangerous of the coal dust exploring The coal seam es angry from the Ran Sign the well expand
前言
毕业设计是四年采矿工程专业学习的终结考核,也是这四年学习生活的一次深刻总结。在学校教学环节安排下,通过毕业实习较为全面的了解了矿井的各生产系统,使专业学习得于感性和理性的转化,以此为基础进行的毕业设计,是一次由工科学生向工程技术人员转变的考验,更是一次作为工科学生是否具备工程技术人员基本素质的考察。所以设计期间,严格执行教学大纲要求,以严谨的态度力求使设计完善、完美。
本设计是以宁夏灵新煤矿为地质储量基础,根据赵忠明老师的具体要求进行设计的。矿井自然地质条件中等,开采14煤层,设计煤层为14煤,,属特厚煤层。开采煤层具有自燃发火倾向性,煤尘具有爆炸危险性,矿井瓦斯含量低,相对瓦斯涌出量为8m3/t,为低瓦斯矿井,矿井涌水量不大,正常涌水量180m3/h,最大涌水量230m3/h。井田边界有一条向斜构造,但未给本开采设计带来困难。
通过毕业实习现场考察学习,在收集的资料基础上,