本文選題：分形模型 + 壓汞法　； 參考：《煤炭科學技術(shù)》2017年07期

【摘要】：為了定量表征煤�？紫督Y(jié)構(gòu)特性,選取褐煤、煙煤和無煙煤3個不同煤階煤樣分別破碎成3個不同粒度的煤粒進行壓汞試驗,基于Menger海綿模型和熱力學模型對試驗數(shù)據(jù)進行處理,研究了煤�？紫兜姆中翁匦�。研究表明:基于Menger海綿模型得到的試驗曲線不符合線性關(guān)系,曲線分為2段,前段分形維數(shù)DM大于3,后段線性擬合度太低;采用熱力學模型分析孔隙分形特性時,曲線呈現(xiàn)顯著的線性關(guān)系,擬合度均在0.98以上,且分形維數(shù)DT均在2~3。表明熱力學模型較Menger海綿模型更適合研究煤�？紫兜姆中翁匦�。DT隨著煤粒度的減小而減小,且煤粒度對其影響較小;DT隨著煤階的升高而減小,并從煤變質(zhì)作用的角度分析了其原因。
[Abstract]:In order to quantitatively characterize the pore structure of coal particles, three different rank coal samples, lignite, bituminous coal and anthracite, were broken into three different sizes of coal to carry out mercury injection test. Based on Menger sponge model and thermodynamic model, the fractal characteristics of coal pore were studied. The results show that the experimental curve based on Menger sponge model does not accord with the linear relationship, the curve is divided into two sections, the fractal dimension DM of the front segment is greater than 3, and the linear fitting degree of the posterior segment is too low. The curve showed a significant linear relationship, the fitting degree was above 0.98, and the fractal dimension DT was 2 ~ 3 ~ 3. The results show that the thermodynamic model is more suitable than the Menger sponge model to study the fractal characteristics of coal pore. DT decreases with the decrease of coal particle size, and the influence of coal particle size on it decreases with the increase of coal rank. The causes of coal metamorphism are analyzed.
【作者單位】： 中國礦業(yè)大學(北京)資源與安全工程學院;
【基金】：中海石油(中國)有限公司資助項目(YXKY-2016-ZY-08,FQTFWQYZL-14-071)
【分類號】：P618.11

【相似文獻】

相關(guān)期刊論文 前1條

1 郁俊莉;我國資本市場分形特性研究[J];中南財經(jīng)政法大學學報;2005年03期

相關(guān)碩士學位論文 前1條

1 曹珍;復雜網(wǎng)絡分形特性的統(tǒng)計研究[D];哈爾濱工業(yè)大學;2013年

，

本文編號：1808701