河东煤田吉县车城详查区煤炭资源洁净等级评价

Coal Resources Cleanliness Assessment in Checheng General Exploration Area, Jixian County, Hedong Coalfield

河东煤田吉县车城详查区主采煤层(2、9+10号)获得资源量144 872万t,其中2号煤层为中灰、低硫、中高发热量、高软化温度灰之贫煤、无烟煤,9+10号煤层为中灰、中高硫、中高发热量、中等-高软化温度灰之贫煤、无烟煤。在整理和分析勘查区15个钻孔化验资料的基础上,依据唐跃刚等提出的煤炭资源洁净等级6级划分方案,对该区主采煤层进行了洁净等级评价。评价结果显示:2号煤层洁净等级为II-VI级,以III级较好洁净煤和IV级中等洁净煤为主,属中等较好洁净煤,主要分布在勘查区中部和西北部;9+10号煤层洁净等级为IV-VI级,以IV级中等洁净煤为主,属中等洁净煤,占据了勘查区的绝大部分区域。

The main mineable coal seams （Nos.2 and 9＋10） in the Checheng general exploration area, Jixian County, Hedong coalfield possesses of coal resources 1.44 872 billion tons. In which, the coal No.2 is medium ash, low sulfur, medium high calorific value and high ash softening temperature meager coal and anthracite;the coal No.9＋10 is medium ash, medium high sulfur and medium to high ash softening temperature meager coal and anthracite. Based on sorting and analysis of tested data from 15 boreholes in the exploration area, according to coal resources cleanliness 6 grade partition scheme proposed by Tang Yuegang et al have carried out main mineable coal seams cleanliness assessment. The result has shown that cleanliness of coal No.2 is from categories II to VI, and mainly category III better clean coal and category VI medium clean coal, thus belongs to medium better clean coal mainly distributed in middle and northwest parts of the exploration area;coal No.9＋10 is from categories IV to VI, mainly category IV medium clean coal, belongs to me？dium clean coal distributed in vast majority of the exploration area.