[1]王彩萍,邓 军,张嬿妮.影响煤氧化自燃的微观结构特征分析[J].西安科技大学学报,2016,(01):8-12.
 WANG Cai-ping,DENG Jun,ZHANG Yan-ni.Effect of micro structure characteristics on coal spontaneous combustion[J].Journal of Xi'an University of Science and Technology,2016,(01):8-12.
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影响煤氧化自燃的微观结构特征分析(/HTML)
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西安科技大学学报[ISSN:1672-9315/CN:61-1434/N]

卷:
期数:
2016年01期
页码:
8-12
栏目:
出版日期:
2016-02-28

文章信息/Info

Title:
Effect of micro structure characteristics on coal spontaneous combustion
文章编号:
10.13800/j.cnki.xakjdxxb.2016.0102
作者:
王彩萍12邓 军12张嬿妮12
1.教育部 西部矿井开采及灾害防治重点实验室,陕西 西安 710054; 2.西安科技大学 能源学院,陕西 西安 710054
Author(s):
WANG Cai-ping12DENG Jun12ZHANG Yan-ni12
D'F'Key Laboratory of Western Mine Exploration and Hazard Prevention,Ministry of Education,Xi'an 710054,China; 2.College of Energy Science and Engineering,Xi'an University of Science and Technology,Xi'an 710054,China
关键词:
煤微观结构 自燃特性 比表面积 微晶结构
Keywords:
coal micro structure specific surface area spontaneous combustion characteristics microcrystalline structure
分类号:
TD 75
文献标志码:
A
摘要:
为研究不同变质程度煤表面活性微观结构与氧化自燃能力的影响关系,揭示不同变质程度煤的微观自燃机理。采用X射线衍射仪、比表面积分析仪和扫描电子显微镜等实验分析手段,对褐煤、长焰煤、不粘煤、气煤、肥煤、焦煤、瘦煤、贫瘦煤和无烟煤等9种不同变质程度的煤样,进行XRD,比表面积和微观结构测试分析。结果表明:随着煤样变质程度升高,煤微观结构中的芳香层片尺寸变大,芳香层片的延展度和堆砌度则不断增强; 煤的孔隙结构随变质程度的升高不断缩小,比表面积不断增大,煤的孔隙结构和表面积差异是引起不同变质程度煤氧化过程吸氧量不相同的主要原因,阐明了不同变质程度煤的微观结构的异同是影响煤低温氧化能力的主要因素。
Abstract:
To reveal the mechanism of micro coal spontaneous combustion,and study the relationship between the microstructure and spontaneous combustion ability of different ranks of coal,using X-ray diffraction,specific surface area analyzer and scanning electron microscopy method we tested the microstructure of 9 types of different ranks of coal.The results show that with the increase of coal rank,the size of the aromatic layer in the microstructure of coal increases,and the ductility and the degree of the aromatic layer are enhanced.The pore structure of coal decreases with the increase of coal rank,and the specific surface area is increased.The changes of pore structure and specific surface area are the main reasons for causing different quantity of respiratory oxygen in different ranks of coal during oxidation.Furthermore,microstructure is the main factor which affects the ability of low temperature oxidation.

参考文献/References:

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备注/Memo

备注/Memo:
收稿日期:2015-11-12 责任编辑:刘 洁 基金项目:国家自然科学基金(51504187); 陕西省自然科学基金(2014JM7276); 陕西省教育厅科学研究专项计划(15JK1479) 通讯作者:王彩萍(1985-),女,陕西渭南人,讲师,E-mail:281448848@qq.com
更新日期/Last Update: 1900-01-01