鹤壁石林勘探区二_1煤煤质特征  

Coal quality characteristics of No.Ⅱ_1 coal seam in Shilin exploration area of Hebi City

作　　者：郭海英 

机构地区：[1]河南省煤炭地质勘察研究总院,河南郑州450052

出　　处：《洁净煤技术》2015年第3期6-10,共5页Clean Coal Technology

基　　金：2010年度河南省地质勘查基金续作项目(豫国土资发[2010]100号文);2010年度河南省地质勘查基金资助项目(豫财建[2010]466号文);2007年度河南省省级地质勘查基金(周转金)资助项目(豫国土资发[2008]87号)

摘　　要：为了解鹤壁石林勘探区二1煤煤质特征和工艺性能，评价其工业用途。采取钻孔煤芯样35孔81个样，分析了二1煤的煤岩成分与宏观煤岩类型、显微煤岩组分特征、化学性质、工艺性能，研究了煤类分布及变质特征。结果表明，二1煤显微组分中镜质组含量59.50%～69.20%，镜质组最大反射率1.67%～2.01%，灰分16.18%～20.28%，挥发分14.73%～15.92%，发热量28.40～29.95 MJ/ kg，黏结指数2～35，哈氏可磨性指数109～149。根据现行中国煤炭分类，二1煤属贫煤、贫瘦煤、瘦煤。各煤类在平面上分布为：贫煤位于南部的 F1～ F22断层，贫瘦煤位于中部的 F31～ F114断层，瘦煤位于北部的 F50～ F66断层。煤层在深成变质作用的基础上叠加了区域岩浆热变质作用，使煤化程度达到以高煤级为主的烟煤阶段，形成贫煤—贫瘦煤—瘦煤的带状分布。贫瘦煤、瘦煤可作工业炼焦配煤，贫煤符合发电煤粉锅炉用煤和高炉喷吹用煤技术条件。In order to get knowledge of characteristics of coal quality and processing properties of No. Ⅱ1 coal seam in Shilin Exploration Area,Hebi City,and evaluate its industrial utilization application,81 coal core samples in 35 boreholes were collected,the chemical proper-ties,processing property and microlithotype of coal property of No. Ⅱ1 coal seam were investigated. The distribution of coal class and its metamorphic characteristics were analyzed. The results showed that,the vitrinite content of maceral in No. Ⅱ1 coal seam ranged from 59. 50% to 69. 20% ,with the max reflectivity of vitrain 1. 67% ～ 2. 01% ,ash content 16. 18% ～ 20. 28% ,calorific value 28. 40 ～29. 95 MJ/ kg,volatile matter 14. 73% ～ 15. 92% ,caking index 2 ～ 35,and grindability index 109 ～ 149. According to the current coal classification in China,the coal classes of No. Ⅱ1 coal seam were meager coal,meager lean coal and lean coal. The distribution of va-rious coal in different levels was that meager coal lay between faults F1 to F22 in the south,meager lean coal lay between faults F31 to F114 in central part,while the lean coal lay between faults F50 to F66 in the north. On the basis of hypozonal metamorphism,the coal seam was o-verlapped regional magmatic thermal metamorphism,which changed the degree of coalification to the high rank coal,mainly bituminous coal phase,and formed the belt shape distribution of meager coal - meager lean coal and lean coal. In which,meager lean coal and lean coal could be used as blended coal in industrial coking,while the meager coal was accord with the specifications of pulverized coal-fired boiler in power plant and blast furnace injection.

关 键 词：二1煤 煤质特征 显微煤岩组分 工业用途 

分 类 号：TQ531[化学工程—煤化学工程]