煤矿安全2012，Vol.43Issue(12)：26-29,4.
煤的粒径对肥煤和气煤孔隙结构的影响
Coal Particle Size Influence on the Pore Structure of Fat Coal and Gas Coal
司书芳 1王向军2
作者信息
- 1. 中国矿业大学安全工程学院,江苏徐州221116
- 2. 山西亚美大宁能源有限公司大宁煤矿,山西晋城048114
- 折叠
摘要
Abstract
The size of the coal particle had a certain effect on coal pore structure,which leaded to the change of coal gas adsorption performance.Based on the low-temperature nitrogen adsorption experiment of fat coal and gas coal,through analyzing the influence of the coal particle size on the pore volume,pore surface area and pore size distribution,according to the relationship figure of pore volume and pore size distribution,it found out a certain law,then further studied the law of coal particle size influence on the pore structure,the results showed that:the lower limit of coal particle size impact was between 0.074~0.2 mm in diameter,while the impact upper limit might be greater than 3 mm,and the larger particle size would affect the pore structure to reflect the true value.关键词
肥煤/气煤/粒径/孔隙结构/孔体积/比表面积Key words
fat coal/gas coal/coal particle size/pore structure/pore volume/specific surface area分类
矿业与冶金引用本文复制引用
司书芳,王向军..煤的粒径对肥煤和气煤孔隙结构的影响[J].煤矿安全,2012,43(12):26-29,4.
