【摘要】：隨著我國改革開放經濟迅猛發(fā)展，煤炭行業(yè)也有了巨大變化，隨著煤炭需求的加大，煤炭生產企業(yè)規(guī)模不斷擴大，開采深度的增加，煤炭企業(yè)中存在的問題和潛在威脅也變得日益突出，尤其體現(xiàn)在瓦斯方面。就山西省為例，從2006:2012年由于瓦斯事故造成300多人死亡，直接經濟損失2億多；據(jù)統(tǒng)計山西省井工開采煤礦100%是瓦斯礦井，，48%是高瓦斯與瓦斯突出礦井；可見瓦斯治理已經是煤礦安全生產的重要前提，其治理的好壞直接關系著安全生產有效進行。而治理瓦斯的最有效手段就是煤層瓦斯抽放，且瓦斯是可以利用的清潔能源，加強煤礦瓦斯抽放的研究，對于預防事故的發(fā)生，確保煤礦企業(yè)安全生產的順利進行，具有重要的意義。 首先，本文對瓦斯抽放工作的現(xiàn)狀進行了總結，并在分析我國煤礦企業(yè)開展瓦斯抽采的現(xiàn)實狀況的基礎上，提出了當前煤炭企業(yè)瓦斯抽采的合理方法。 其次，本文以煤層瓦斯賦存和流動理論為基礎，總結了煤礦瓦斯抽放的技術經驗，較系統(tǒng)地闡述了瓦斯抽放技術及方法，包括本煤層瓦斯抽放、鄰近層瓦斯抽放、采空區(qū)瓦斯抽放，以及提高瓦斯抽放率的技術途徑；對現(xiàn)有瓦斯抽放參數(shù)進行更加深入介紹及參數(shù)優(yōu)化。 然后，通過比較各種瓦斯抽放方法的適用范圍和局限性，本文結合煤礦企業(yè)安全生產的特點，按照瓦斯抽采方法選擇原則，提出了將開采層、鄰近層和采空區(qū)同時進行瓦斯抽采的總體思路。 最后，以陽泉市某煤礦為例進行瓦斯抽采設計，建立了瓦斯抽放系統(tǒng)。最終得出的瓦斯抽放系統(tǒng)與企業(yè)實際瓦斯涌出狀況完全相符，從而驗證了煤層綜合瓦斯抽采方法的有效性和實用性。
[Abstract]:With the rapid development of China's reform and opening up economy, the coal industry has also undergone great changes. With the increase of coal demand, the scale of coal production enterprises continues to expand, and the mining depth increases. The problems and potential threats in coal enterprises have become increasingly prominent, especially in gas. Taking Shanxi Province as an example, from 2006 to 2012, more than 300 people died and lost more than 200 million direct economic losses as a result of gas accidents. According to statistics, 100% of the coal mines in Shanxi Province are gas mines, 48% are high gas and gas outburst mines, and 48% are high gas and gas outburst mines. It can be seen that gas control is an important prerequisite for coal mine safety production, and its treatment is directly related to the effective production safety. The most effective means to control gas is coal seam gas drainage, and gas is a clean energy that can be used to strengthen the research of coal mine gas drainage, in order to prevent accidents and ensure the smooth progress of safe production in coal mining enterprises. It is of great significance. First of all, this paper summarizes the present situation of gas drainage work, and on the basis of analyzing the actual situation of gas drainage in coal mining enterprises in China, puts forward the reasonable methods of gas drainage in coal enterprises at present. Secondly, based on the theory of coal seam gas occurrence and flow, this paper summarizes the technical experience of coal mine gas drainage, and systematically expounds the gas drainage technology and methods, including gas drainage in this coal seam and gas drainage in adjacent strata. Gas drainage in goaf and technical ways to improve gas drainage rate; The existing gas drainage parameters are introduced more deeply and the parameters are optimized. Then, by comparing the applicable scope and limitations of various gas drainage methods, combined with the characteristics of coal mine enterprises in production safety, according to the selection principle of gas drainage methods, this paper puts forward the mining layer. The general idea of gas extraction in adjacent layer and goaf at the same time. Finally, taking a coal mine in Yangquan City as an example, the gas drainage system is established. Finally, the gas drainage system is in good agreement with the actual gas emission situation of the enterprise, which verifies the effectiveness and practicability of the comprehensive gas extraction method in coal seam.
【學位授予單位】：中北大學
【學位級別】：碩士
【學位授予年份】：2013
【分類號】：TD712.6

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