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金属矿山 ›› 2011, Vol. 40 ›› Issue (06): 6-8+35.

• 采矿工程 • 上一篇    下一篇

煤矸石似膏体快速充填试验研究*

刘晓玲,王新民,吴鹏   

  1. 中南大学资源与安全工程学院
  • 出版日期:2011-06-08 发布日期:2011-06-09
  • 基金资助:

    * “十一五”国家科技支撑计划项目(编号:2008BAB32B03)。

Experimental Research of Rapid Filling with Paste-like Coal Gangue

Liu Xiaoling,Wang Xinmin,Wu Peng   

  1. School of Resources and Safety Engineering, Central South University
  • Online:2011-06-08 Published:2011-06-09

摘要: 某煤矿因“三下”环境积压了大量煤炭资源。为最大限度地回收工广煤柱及解决煤矸石排放问题,进行了煤矸石似膏体快速充填试验研究。通过对充填强度和凝结时间的试验所得结果分析,确定了最佳配比,强度满足要求,且凝结时间较短。采用煤矸石似膏体快速充填既快速又环保,为煤矿合理回收“三下”积压矿石提供了可靠的技术支持,有很好的应用前景。  

关键词: 煤矸石, 配比, 充填强度, 凝结时间

Abstract: There exists a great quantity of coal resources under "Three Unders" in some coal mine. In order to maximize recovery of coal pillar and resolve the problem in coal gangue discharge, the experimental research on rapid filling of paste-like coal gangue is carried out. Based on the analysis of experimental results on the strength of backfilling and the setting time, the paper determined the optimum ratio, which met the intensity demand and owned a short setting time. The rapid filling with paste-like coal gangue is effective and environment-friendly. This method provides a valuable and technical support for recovering "Three Under" overstocked coal mine, with a promising prospect.

Key words: Coal gangue, Ratio, Strength of backfilling, Setting time