| 不同粒径条件下煤孔隙结构特征分析 |
| |
| 引用本文： | 王福生,张志明,孙超,王川.不同粒径条件下煤孔隙结构特征分析[J].工业安全与环保,2019,45(5):23-25. |
| |
| 作者姓名： | 王福生 张志明 孙超 王川 |
| |
| 作者单位： | 华北理工大学矿业工程学院 河北唐山 063210;河北省矿业开发与安全技术实验室 河北唐山 063210;华北理工大学矿业工程学院 河北唐山 063210 |
| |
| 基金项目： | 国家自然科学基金;河北省自然科学基金 |
| |
| 摘 要： | 当前煤体孔隙结构研究普遍基于液氮吸附实验,而实验所测结果因选取煤样粒径的不同而变动。利用不同煤阶的5种煤样分别选取不同目数的煤样进行实验,测得了在不同粒径条件下的比表面积、平均孔径、吸附曲线等数据。研究表明,焦煤孔隙结构测试数据受实验样品粒径影响较大,褐煤平均孔径较大,孔隙发育程度高且测试数据受实验样品粒径影响较小。
|
| 关 键 词： | 孔隙结构 液氮吸附 等温曲线 比表面积 孔径 |
Analysis of Pore Structure Characteristics of Coal Under Different Particle Size Conditions |
| |
| WANG Fusheng,ZHANG Zhiming,SUN Chao,WANG Chuan.Analysis of Pore Structure Characteristics of Coal Under Different Particle Size Conditions[J].Industrial Safety and Dust Control,2019,45(5):23-25. |
| |
| Authors: | WANG Fusheng ZHANG Zhiming SUN Chao WANG Chuan |
| |
| Institution: | (College of Mining Engineering,North China University of Science and Technology Tangshan,Hebei 063210) |
| |
| Abstract: | At present,the research on pore structure of coal is generally based on the adsorption experiment of liquid nitrogen,and the results of the experiment are changed because of the difference of coal sample size.In this paper,the test data of specific surface area,average aperture and adsorption curve under different particle sizes were obtained by using 5 coal samples with different coal orders respectively.The results show that the pore structure test data of coking coal are greatly influenced by the size of the experimental sample,the average pore size of lignite is large and the pore development is high,and the test data is less affected by the particle size of the experimental sample. |
| |
| Keywords: | pore structure liquid nitrogen adsorption isothermal curve specific surface area aperture |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
|
