本文選題：等溫吸附 + 滲透��； 參考：《中國礦業(yè)大學》2017年碩士論文

【摘要】：瓦斯是我國煤礦的主要災害因素之一,煤與瓦斯突出嚴重威脅著我國煤礦的安全生產(chǎn),作為一種區(qū)域防突措施,預抽煤層瓦斯能有效消除采掘工作面突出危險性。我國煤田地質(zhì)條件復雜,大部分煤層滲透性較差,瓦斯抽采難度大。高瓦斯低透氣性煤層增透抽采成為高瓦斯突出礦井安全、高效生產(chǎn)的關鍵。研究低透氣性煤層高效增透非常必要。本文通過實驗測試和數(shù)據(jù)分析,主要研究不同電場及電場組合作用下煤體瓦斯吸附特性/滲透規(guī)律。主要研究工作和成果有:(1)建立了外加電場作用下煤體瓦斯等溫吸附/滲透率實驗裝置,測試了脈沖電場作用下煤體內(nèi)不同吸附質(zhì)的等溫吸附特性,分析了不同吸附質(zhì)在煤體內(nèi)吸附特性與所施加電場強度及頻率之間的關系,揭示了脈沖電場作用下煤體瓦斯(甲烷)等溫吸附與二氧化碳等溫吸附的差異性。相同脈沖電場條件下,煤體瓦斯等溫吸附受電場影響比二氧化碳大。(2)測試并分析了不同電場組合作用下煤體瓦斯(甲烷)等溫吸附特性。研究發(fā)現(xiàn),電場組合作用使瓦斯吸附量下降,而且電場組合作用下瓦斯吸附量降低比單一交變電場作用下更明顯。(3)測試并分析了電場組合作用下煤體滲透率的變化規(guī)律,對比了電場組合作用與單一交變電場作用對煤體滲透率影響的差異,探索了不同電場對煤體瓦斯?jié)B透的作用效果。交變電場作用和電場組合作用對煤體滲透率改善效果的優(yōu)劣順序為:楊莊煤棋盤井煤袁莊煤,而且電場組合作用對煤體滲透率改善效果要優(yōu)于單一交變電場。
[Abstract]:Gas is one of the main disaster factors in coal mines in China. Coal and gas outburst seriously threaten the safe production of coal mines in China. As a regional anti-outburst measure, pre-drainage of coal seam gas can effectively eliminate the danger of outburst in mining face. The geological conditions of coal field in China are complex, the permeability of most coal seams is poor, and the gas drainage is difficult. High gas and low permeability coal seam antipenetration and drainage become the key to safe and efficient production of high gas outburst mine. It is necessary to study the high-efficiency anti-permeability of low permeability coal seam. Through experimental test and data analysis, the adsorption characteristics and permeability of coal gas under different electric field and electric field combination are studied in this paper. The main research work and results are as follows: (1) the experimental equipment of isothermal adsorption / permeability of coal gas under the action of external electric field is established, and the isothermal adsorption characteristics of different adsorbents in coal body under the action of pulsed electric field are tested. The relationship between the adsorption characteristics of different adsorbents in coal and the intensity and frequency of applied electric field is analyzed. The difference between the isothermal adsorption of coal gas (methane) and the isothermal adsorption of carbon dioxide under the action of pulsed electric field is revealed. Under the same pulsed electric field, the isothermal adsorption characteristics of coal gas (methane) under different electric field combinations were measured and analyzed. The isothermal adsorption of coal gas was more affected by electric field than that of carbon dioxide. It is found that the combination of electric field decreases the amount of gas adsorption, and the decrease of gas adsorption under the combination of electric field is more obvious than that under the action of single alternating electric field. The difference between electric field combination action and single alternating electric field effect on coal permeability is compared, and the effect of different electric field on coal gas permeability is explored. The order of the effect of alternating electric field and electric field combination on coal permeability improvement is as follows: Yuanzhuang coal, Qipan coal, Yangzhuang coal, and the effect of electric field combination on coal permeability improvement is better than that of single alternating electric field.
【學位授予單位】：中國礦業(yè)大學
【學位級別】：碩士
【學位授予年份】：2017
【分類號】：TD712

【參考文獻】

相關期刊論文 前10條

1 尹志強;趙金昌;卞德存;閆東;賈少華;;水中高壓脈沖放電的延時特性與電流特性研究[J];太原理工大學學報;2016年03期

2 祁澤武;張偉;李平林;黃業(yè)文;;DBD高頻高壓放電電源的設計及其放電特性[J];高電壓技術(shù);2016年03期

3 林柏泉;閆發(fā)志;朱傳杰;郭暢;周延;;基于空氣環(huán)境下的高壓擊穿電熱致裂煤體實驗研究[J];煤炭學報;2016年01期

4 葉建平;陸小霞;;我國煤層氣產(chǎn)業(yè)發(fā)展現(xiàn)狀和技術(shù)進展[J];煤炭科學技術(shù);2016年01期

5 賈少華;趙金昌;尹志強;卞德存;閆東;馮劍鋒;;基于高壓電脈沖煤體增透的水激波波前時間變化規(guī)律研究[J];太原理工大學學報;2015年06期

6 胡國忠;黃興;許家林;秦偉;;可控微波場對煤體的孔隙結(jié)構(gòu)及瓦斯吸附特性的影響[J];煤炭學報;2015年S2期

7 祝捷;唐俊;傳李京;王學;;煤吸附解吸氣體變形的力學模型研究[J];中國科技論文;2015年17期

8 卞德存;閆東;賈少華;尹志強;張攀;;基于高壓電脈沖的煤體增透實驗臺[J];煤炭技術(shù);2015年08期

9 張朝鵬;高明忠;張澤天;張茹;李果;;不同瓦斯壓力原煤全應力應變過程中滲透特性研究[J];煤炭學報;2015年04期

10 周曉亭;秦勇;李恒樂;張永民;邱愛慈;師慶民;;電脈沖應力波作用下煤體微裂隙形成與發(fā)展過程[J];煤炭科學技術(shù);2015年02期

相關會議論文 前1條

1 何學秋;王恩元;;礦井瓦斯災害研究新發(fā)展[A];世紀之交的煤炭科學技術(shù)學術(shù)年會論文集[C];1997年

相關博士學位論文 前1條

1 李恒樂;煤巖電脈沖應力波致裂增滲行為與機理[D];中國礦業(yè)大學;2015年

，

本文編號：1943752