GUO Xuying;LI Ying;DONG Yanrong;XING Jingwei;LI Zhennan;

• 1:College of Science
• 2:Liaoning Technical University
• 3:College of Mining Engineering
• 4:Liaoning Technical University

Abstract：

In order to use the coal of Baorixile Open-pit Coal Mine reasonably and cleanly in Chenqi coalfield of Inner Mongolia Autonomous Region,the physical and the petrographical properties of coal were analyzed based on the geological background of the whole region and the basic situation of the coal-bearing strata in the Damoguaihe Formation. Their feasible industrial properties and usage were determined.The cleanliness of the mining area coal seam was drew primarily from the aspects of ash,sulfur,As and Cl.The results show that durain and semidull coal are the main lithotypes of the 12,21,31 and 32+3 coal seam.Huminite and inertinite are the main organic maceral of the mining area coal.The coal is low ash,high volatile,medium and high fixed carbon,extra low sulfur,extra low chlorine,extra low ~ low phosphorus and first grade arsenic.By analyzing the process properties of raw coal,it is found that the mine seam is main No. 2 lignite,which belongs to medium-high calorific value,high tar yield,medium slagging coal.The 21 coal is easy to be ground,and 12 and 31 coal are extremely easy to be ground and refractory coal.The cleanliness class of the mining area coal is Ⅱ,which belongs to the better clean coal.The coal in the mining area can be used as coking,steam coal and civilian coal.

Key Words： petrographical properties;cleanliness;physical properties;proximate analysis;process properties

Abstract:

Keywords:

Foundation: 国家自然科学基金资助项目(51304114;41672247);; 辽宁省教育厅科学技术研究资助项目(LJ2017FAL016)

Authors: GUO Xuying;LI Ying;DONG Yanrong;XING Jingwei;LI Zhennan;

DOI: 10.13226/j.issn.1006-6772.2018.03.002

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