瓦斯抽放毕业设计.docVIP

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。介绍了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。矿井瓦斯抽放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 置．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．． 围．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．． ．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．． 理．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．． 料．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．． 采史．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．． 井概况．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．． 2.2 井田地质特征 ．3 造．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．． 层及煤层