本文關(guān)鍵詞： 定壓注水 濕潤(rùn)范圍 降塵 抑制瓦斯 軟化煤體　出處：《遼寧工程技術(shù)大學(xué)學(xué)報(bào)(自然科學(xué)版)》2016年08期 　論文類型：期刊論文

【摘要】：為明確煤層注水過程中水分增值的變化規(guī)律,確定合理工藝參數(shù),提高煤層注水效果,使用COMSOL4.3b2D開展煤層定壓注水?dāng)?shù)值模擬,并使用SPSS軟件對(duì)數(shù)值模擬結(jié)果進(jìn)行逐步回歸,建立了濕潤(rùn)范圍關(guān)于注水壓力、時(shí)間和水分增值的綜合計(jì)算方程.研究結(jié)果表明:提高注水壓力和時(shí)間能夠擴(kuò)大濕潤(rùn)范圍,能使煤體的水分含量分布更加均勻;依據(jù)建立的綜合結(jié)算方程和現(xiàn)場(chǎng)實(shí)際,并結(jié)合經(jīng)驗(yàn)方法確定的綜采工作面注水方案,實(shí)施之后粉塵濃度降低72%以上,噸煤瓦斯涌出量降低為原來的1/3左右,日均產(chǎn)量增加1倍左右.
[Abstract]:In order to make clear the variation law of water increment in the process of coal seam water injection, determine reasonable technological parameters and improve the effect of coal seam water injection, COMSOL4.3b2D is used to carry out numerical simulation of constant pressure water injection in coal seam, and the result of numerical simulation is regressed step by step by using SPSS software. The comprehensive calculation equations of wetting range about water injection pressure, time and water increment are established. The results show that increasing water injection pressure and time can enlarge the wetting range and make the distribution of water content of coal body more uniform. According to the established comprehensive settlement equation and field practice, combined with the experience method, the water injection scheme of fully mechanized coal face is determined. After the implementation of the project, the dust concentration is reduced by more than 72%, and the gas emission of tons of coal and gas is reduced to about 1/3 of the original one. The average daily yield increased by about twice.
【作者單位】： 遼寧工程技術(shù)大學(xué)安全科學(xué)與工程學(xué)院;
【基金】：國家自然科學(xué)基金項(xiàng)目(51274115) 遼寧省教育廳一般項(xiàng)目(L2015221)
【分類號(hào)】：TD714.4;TD712

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本文編號(hào)：1530899