《古汉山煤矿瓦斯抽放系统》-毕业设计（论文）.doc

PAGE 古汉山煤矿瓦斯抽放系统 摘要：矿井瓦斯是成煤过程中的一种伴生产物，其主要成分是甲烷。它是一种无色、无味、无臭的气体。比空气轻，相对密度为0.554。 为了减少和解除矿井瓦斯对煤矿安全生产的威胁，利用机械设备和专用管道造成的负压，将煤层中存在或释放出的瓦斯抽出来，输送到地面或其他安全地点的做法，叫做瓦斯抽放。 本文介绍了古汉山煤矿瓦斯抽放系统在采掘工作面的应用经验，采煤工作面瓦斯治理综合抽放方式主要采用在工作面进回风巷和开切眼布置走向和斜向抽采钻孔、工作面内网格抽放等措施实施瓦斯抽采治理，条件允许的情况下积极采用顶底板岩巷施工穿层钻孔进行辅助抽采。古汉山矿是煤与瓦斯突出矿井，凡顶层采掘面均按突出危险区管理，均严格执行了“四位一体”综合防突措施，采掘前必须先采取防突措施，然后进行效果检验，效果检验采用《防突细则》规定方法。 关键词：矿井 矿井通风 瓦斯 瓦斯涌出量 瓦斯抽放 Abstract: coal mine gas is in the process of a product, its main components associated is methane. It is a colourless, odourless and tasteless gas. Lighter than air, relative density for 0.554. In order to reduce or remove mine gas to coal mine safety in production, use mechanical equipment and special pipeline caused by negative pressure, will exist in coal seam gas or release, transported out of the ground or other security sites, called the gas drainage. The paper introduces the han mountain coal gas drainage systems in mining face application experience, coal face gas treatment comprehensive drainage mode in the main mining in return roadway and cut layout and oblique borehole fully-mechanized extraction, drainage measures in the grid, implementation of gas extraction conditions allow the roof and floor construction wear layers are assisted extraction holes. Ancient Chinese coal mine is of coal and gas outburst, all top-level mining face the serious danger, strictly enforce the four-in-one comprehensive prevention measures must be taken before, mining and prevention measures, the effect of the effect of the detailed rules regulation methods. Keywords: mine ventilation system gas gas flow-volume gas drainage 目 录 1 引言．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．6 2 矿井概况 3 2.1 井田概况 3 2.1.1地理位置．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．． 2.1.2井田范围．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．． 2.1.3交通．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．． 2.1.4自然地理．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．