Characteristics and coal facies of high quality anthracite from coal seam No.5 of Xiaofalu coal mine, Yunnan province

Tang Yuegang; Guo Xin; Li Zhengyue; Wang Shaoqing; Qin Yunhu; Wei Qiang; Zhu Shifei; Gao Weicheng

doi:10.19606/j.cnki.jmst.2020.01.002

矿业科学学报 (Feb 2020)

Characteristics and coal facies of high quality anthracite from coal seam No.5 of Xiaofalu coal mine, Yunnan province

Tang Yuegang,
Guo Xin,
Li Zhengyue,
Wang Shaoqing,
Qin Yunhu,
Wei Qiang,
Zhu Shifei,
Gao Weicheng

Affiliations

Tang Yuegang: College of Geoscience and Surveying Engineering, China University of Mining & Technology-Beijing, Beijing 100083, China
Guo Xin: College of Geoscience and Surveying Engineering, China University of Mining & Technology-Beijing, Beijing 100083, China
Li Zhengyue: China National Administration of Coal Geology, Beijing 100039, China
Wang Shaoqing: College of Geoscience and Surveying Engineering, China University of Mining & Technology-Beijing, Beijing 100083, China
Qin Yunhu: Jiangsu Coal geological Exploration Research Institute, Xuzhou Jiangsu 221006, China
Wei Qiang: College of Geoscience and Surveying Engineering, China University of Mining & Technology-Beijing, Beijing 100083, China
Zhu Shifei: Jiangsu Coal geological Exploration Research Institute, Xuzhou Jiangsu 221006, China
Gao Weicheng: College of Geoscience and Surveying Engineering, China University of Mining & Technology-Beijing, Beijing 100083, China

DOI: https://doi.org/10.19606/j.cnki.jmst.2020.01.002
Journal volume & issue: Vol. 5, no. 1
pp. 12 – 21

Abstract

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The characteristics and geological origin of high quality anthracite from coal seam No.5 of Xiaofalu, Yunnan province, China were studied based on the theories and methods of coal petrology, coal chemistry etc.The results showed that coal seam No.5 was characterized by extremely low ash yield of raw coal (Ad:the lowest value 1.49%).Compared with other typical anthracites in China, coal seam No.5 had higher hydrogen content (Hdaf:the highest were 3.22%~3.37%) and the highest free hydrogen content (2.95%~3.12%), as well as the lowest oxygen content (1.44%~2.27%).Bright coals were the main lithotype (79.8%).Subgroups with cell structure were the main maceral composition in both vitrinite and inertinite.The TPI and GI values of coal seam No.5 were 0.97~1.44 and 4.22~5.78 (> 4.00), respectively.

Published in 矿业科学学报

ISSN: 2096-2193 (Print)
Publisher: Emergency Management Press
Country of publisher: China
LCC subjects: Technology: Engineering (General). Civil engineering (General): Engineering geology. Rock mechanics. Soil mechanics. Underground construction; Technology: Mining engineering. Metallurgy
Website: http://kykxxb.cumtb.edu.cn/indexen.htm

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