矿业安全与环保
礦業安全與環保
광업안전여배보
MINING SAFETY & ENVIRONMENTAL PROTECTION
2013年
4期
4-7
,共4页
煤粒%孔隙%微观结构%吸附等温线
煤粒%孔隙%微觀結構%吸附等溫線
매립%공극%미관결구%흡부등온선
coal particle%pore%microscopic structure%adsorption isotherm
为了进一步深入分析煤体内部的孔隙结构特征，利用美国康塔Autosorb-iQ全自动比表面和孔径分布分析仪，实验研究了煤粒(同种煤不同粒径)的吸附等温线，并对其微观结构特征参数---比表面积、孔容及平均孔径进行了分析。研究表明：不同粒径煤粒吸附等温线呈现出相似的变化趋势；随着煤粒粒径的增大，煤粒的比表面积和总孔容逐渐减小，而平均孔径增大。研究结果为煤体瓦斯的吸附、解吸及渗流等机理的研究提供了一定的理论基础。
為瞭進一步深入分析煤體內部的孔隙結構特徵，利用美國康塔Autosorb-iQ全自動比錶麵和孔徑分佈分析儀，實驗研究瞭煤粒(同種煤不同粒徑)的吸附等溫線，併對其微觀結構特徵參數---比錶麵積、孔容及平均孔徑進行瞭分析。研究錶明：不同粒徑煤粒吸附等溫線呈現齣相似的變化趨勢；隨著煤粒粒徑的增大，煤粒的比錶麵積和總孔容逐漸減小，而平均孔徑增大。研究結果為煤體瓦斯的吸附、解吸及滲流等機理的研究提供瞭一定的理論基礎。
위료진일보심입분석매체내부적공극결구특정，이용미국강탑Autosorb-iQ전자동비표면화공경분포분석의，실험연구료매립(동충매불동립경)적흡부등온선，병대기미관결구특정삼수---비표면적、공용급평균공경진행료분석。연구표명：불동립경매립흡부등온선정현출상사적변화추세；수착매립립경적증대，매립적비표면적화총공용축점감소，이평균공경증대。연구결과위매체와사적흡부、해흡급삼류등궤리적연구제공료일정적이론기출。
In this paper,experimental research was made on the adsorption isotherm of coal particles ( the different sizes of the same coal) and analysis was carried out on the characteristic parameters of microstructure - the specific surface area,pore volume and average pore diameter with Quantachrome Autosorb-iQ specific surface area and pore size analyzer in order to further analyze the structural characteristics of pores in the coal body. Research showed that the adsorption isotherm of coal particles with different sizes presented a similar variation trend. With the increase of particle size,the specific surface area and total pore volume of coal particles decreased gradually,but the average pore size of it increased. The results can provide a certain theoretical basis for studying the gas adsorption,desorption and seepage flow mechanism of coal.
