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  本文選題：突出煤　切入點：孔徑分布　出處：《遼寧工程技術(shù)大學(xué)》2013年碩士論文　論文類型：學(xué)位論文

【摘要】：在對煤與瓦斯突出實際應(yīng)用研究中，煤的瓦斯含量、瓦斯解吸速度、瓦斯涌出強度和衰減規(guī)律以及瓦斯資源評價和開發(fā)等均涉及煤的孔隙�？紫督Y(jié)構(gòu)的研究，將對解釋煤吸附瓦斯的能力、探明煤與瓦斯突出機理有重要意義。對孔隙結(jié)構(gòu)進行的深入研究，不僅能從微觀上更科學(xué)的解釋煤吸附瓦斯的能力，并且對于揭示煤與瓦斯突出機理的具有重要的理論意義。 本文通過對不同礦井不同煤樣的工業(yè)分析，，實驗研究不同煤樣對瓦斯放散速度、堅固性系數(shù)、等溫吸附解吸和低溫氮吸附等特性，研究突出煤和非突出煤在孔隙特征上存在的差異，分析煤的不同孔隙特征對突出的影響。 通過實驗研究，得出：突出煤的孔隙形態(tài)主要以一端封閉的孔和墨水瓶孔為主，非突出煤主要以開放型孔為主；突出煤的內(nèi)比表面積明顯高于非突出煤；突出煤中過渡孔的體積百分比大于非突出煤，突出煤發(fā)生突出后一部分微孔孔徑變大成為過渡孔；但是突出煤和非突出煤在孔徑分布上無明顯差異。
[Abstract]:In the practical application research of coal and gas outburst, coal gas content, gas desorption speed, gas emission intensity and attenuation law, gas resource evaluation and development are all related to the study of pore structure of coal. It will be of great significance to explain the ability of coal to adsorb gas and to find out the mechanism of coal and gas outburst. The deep study of pore structure can not only explain the ability of coal to adsorb gas more scientifically, but also explain the mechanism of coal and gas outburst. It is of great theoretical significance to reveal the mechanism of coal and gas outburst. Based on the industrial analysis of different coal samples in different coal mines, the characteristics of different coal samples such as gas release rate, coefficient of solidity, isothermal adsorption and desorption and low temperature nitrogen adsorption are studied experimentally in this paper. The difference of pore characteristics between outburst coal and non-outburst coal is studied, and the influence of different pore characteristics on outburst is analyzed. Through experimental study, it is concluded that the pore morphology of outburst coal is mainly composed of closed hole at one end and ink bottle hole, while that of non-outburst coal is mainly open pore, and the internal specific surface area of outburst coal is obviously higher than that of non-outburst coal. The volume percentage of transition pore in outburst coal is larger than that of non-outburst coal, and a part of micropore aperture becomes transition pore after outburst, but there is no obvious difference in pore size distribution between outburst coal and non-outburst coal.
【學(xué)位授予單位】：遼寧工程技術(shù)大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2013
【分類號】：TD713.1

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