煤炭工程 ›› 2020, Vol. 52 ›› Issue (9): 139-142.doi: 10.11799/ce202009028

• 研究探讨 • 上一篇    下一篇

阳泉地区煤矸石中硫嵌布状态及分布规律

赵英霄,刘文昌,潘永泰,周柏峰   

  1. 中国矿业大学(北京)
  • 收稿日期:2019-08-01 修回日期:2019-08-29 出版日期:2020-09-15 发布日期:2020-11-24
  • 通讯作者: 潘永泰 E-mail:15010651331@163.com

Embedding status and distribution of sulfur in coal gangue in Yangquan area

1,   

  • Received:2019-08-01 Revised:2019-08-29 Online:2020-09-15 Published:2020-11-24

摘要: 针对阳煤集团煤矸石山自燃的问题,首先对煤矸石矿物性质进行分析,通过筛分试验从粒度角度对煤矸石中的碳进行研究|对于煤矸石中的硫,通过全硫的测定进行定量分析,8个粒级的硫含量都超过了2.00%,利用su8020扫描电镜从微观方面对硫的嵌布状态及不同解离程度下硫的分布规律的研究,并通过ImageJ软件进行图像处理分析求解,对应的分形维数D分别为1.766、1.733、1.607和1.323,结果表明:分形维数D与黄铁矿嵌布分散程度呈负相关。

关键词: 煤矸石, 自燃, 硫, 扫描电镜, 图像处理

Abstract: Aiming at the problem of spontaneous combustion of coal gangue in Yangmei Group, the mineral properties of coal gangue were analyzed firstly. The carbon in coal gangue was studied from the view of particle size by screening test. The sulfur in coal gangue was quantified by determination of total sulfur. The su8020 scanning electron microscope was used to study the sulfur embedding state and the distribution of sulfur under different liberation degrees. The image processing analysis was carried out by ImageJ software to provide a new method for quantifying the sulfur distribution law.

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