摘要
利用贵州省六盘水汪家寨煤矿勘查过程中可采煤层化验测试数据,研究煤中有害元素(S、P、As、F、Cl、U、Th、V)富集特征以及分布规律.依据煤中有害元素含量,采用富集系数概念,分析可采煤层有害元素的富集特征,并对轻度富集有害元素的平面和垂向分布规律进行研究.研究表明:矿区仅S、Th、V在部分可采煤层中轻度富集;平面上,轻度富集的硫元素在矿区范围内连片产出,轻度富集的钍、钒元素则为零星分布,垂向上,硫元素从上至下富集系数先升高后降低(7煤和17煤略有起伏),1、4、8煤轻度富集;钍元素仅在1煤轻度富集,其余煤层正常富集;钒元素在8、13、14煤轻度富集,其余煤层正常富集.
Abstract
The enrichment characteristics and distribution law of harmful elements(S,P,As,F,Cl,U,Th,V)in coal were studied by using the data from the assay tests of minable coal seams during the exploration process of Wangjiazhai Coal Mine in Liupanshui,Guizhou.Based on the content of harmful elements in coal,the enrichment characteristics of harmful elements in minable coal seams were analyzed by using the concept of enrichment coefficient,and the plane and vertical distribution laws of mildly enriched harmful elements were studied.The results show that S,Th and V are mildly enriched in some of the mineable coal seams;on the plane,the mildly enriched sulfur element is produced continuously in the mining area,while the mildly enriched thorium and vanadium elements are sporadically distributed;vertically,the enrichment coefficient of sulfur increases and then decreases from the top to the bottom(except for 7 and 17 coal seams),and is mildly enriched in 1,4,and 8 coal seams;the thorium element is mildly enriched in the 1 coal seam only,and is normally enriched in the rest of coal seams;and the vanadium element is mildly enriched in 8,13,and 14 coal seams,and normally enriched in the rest of coal seams.
维普
万方数据