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Experimental Study of the Raw Coal Desorption Method On the Corresponding Relation between Coal Seam Gas Pressure and Content

机译：原煤解吸方法对煤层瓦斯压力与含量对应关系的实验研究

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The commonly-used method of high-pressured capacity has a problem that the experimental result has certain deviation with the actual result, when it takes the dry coal sample for the adsorbed quantity of gas test. To solve this problem, the paper employs the raw coal desorption method with raw coal sample which includes the natural moisture content desorption to achieve the adsorption pressure balance. According to the experimental result analysis, under the different moisture content and in different distributed condition, the coal seam adsorbed quantity of gas increases along with the gas pressure lifting, which follows certain linear statistics rule between them, and the rate change increases along with the increases of moisture content. As a whole, the dispersing relations of the adsorbed quantity of gas and the gas pressure range of variation control in the banding regions between two straight lines. It is advantageous for calculating the gas content scope corresponding with the applied coal seam gas pressure.
机译：常用的高压容量法存在以下问题：当以干燥煤样作为气体吸附量测试时，实验结果与实际结果存在一定偏差。为了解决这个问题，本文采用了原煤解吸方法，对原煤样品进行了自然含水量解吸，以达到吸附压力平衡。根据实验结果分析，在不同含水量和分布条件下，煤层瓦斯吸附量随瓦斯压力的升高而增加，二者之间遵循一定的线性统计规律，速率变化随瓦斯压力的增加而增加。增加水分含量。总体上，在两条直线之间的带状区域中，气体的吸附量的分散关系和气压变化范围被控制。计算与所施加的煤层瓦斯压力相对应的瓦斯含量范围是有利的。

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