研究论文

天池矿102综放孤岛工作面以风治火技术

  • 周西华 ,
  • 聂荣山 ,
  • 宋东平 ,
  • 白刚 ,
  • 刘振岭 ,
  • 张树岭
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  • 1. 辽宁工程技术大学安全科学与工程学院, 阜新123000;
    2. 矿山热动力灾害与防治教育部重点实验室, 阜新123000;
    3. 中国石化长城能源化工有限公司煤炭资源部, 北京100012;
    4. 阜新市新邱区煤炭工业管理局, 阜新123005
周西华,教授,研究方向为煤矿火灾防治、瓦斯防治等,电子信箱:xihua_zhou68@163.com;聂荣山(共同第一作者),硕士研究生,研究方向为矿井火灾防治等,电子信箱:912403130@qq.com

收稿日期: 2015-03-09

  修回日期: 2015-04-20

  网络出版日期: 2015-12-15

基金资助

国家自然科学基金项目(51274115,51274113)

Wind preventing fire technology in the 102 full mechanized isolated island caving face of Tianchi coal mine

  • ZHOU Xihua ,
  • NIE Rongshan ,
  • SONG Dongping ,
  • BAI Gang ,
  • LIU Zhenling ,
  • ZHANG Shuling
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  • 1. College of Safety Science and Engineering, Liaoning Technical University, Fuxin 123000, China;
    2. Key Laboratory of Mine Thermodynamic Disasters and Control of Ministry of Education, Fuxin 123000, China;
    3. Ministry of Coal Resources of the Great Wall Energy Chemical Industry Co., Ltd., of Sinopec, Beijing 100012, China;
    4. Coal Industry Admins Bureau of Xinqiu District of Fuxin, Fuxin 123005, China

Received date: 2015-03-09

  Revised date: 2015-04-20

  Online published: 2015-12-15

摘要

为了防治天池煤矿15#煤层102 综放孤岛工作面采空区煤炭自燃发火,基于采空区自燃“三带”划分标准和数值模拟的方法,采用流体力学COMSOL 计算软件,研究了工作面不同进风量时采空区氧化升温带的变化规律,确定了氧化升温带的范围,得到工作面供风量与氧化升温带宽度的拟合曲线。通过现场实践,研究了加强封堵和均压等以风治火技术对103 回风闭墙采空区CO 体积分数的影响。研究结果表明,U+I 型102 工作面采空区自燃发火主要是由采空区漏风引起;氧化升温带宽度随着工作面供风量的增加而增加;均压后,103 回风闭墙采空区的CO 体积分数由最开始的超过20×10-6降至5×10-6。在102 综放孤岛工作面的现场实践表明,运用以风治火技术防治天池煤矿采空区遗煤自燃是可行的,对于类似综放孤岛工作面防止遗煤自燃有一定借鉴意义。

本文引用格式

周西华 , 聂荣山 , 宋东平 , 白刚 , 刘振岭 , 张树岭 . 天池矿102综放孤岛工作面以风治火技术[J]. 科技导报, 2015 , 33(22) : 78 -82 . DOI: 10.3981/j.issn.1000-7857.2015.22.013

Abstract

In order to prevent coal spontaneous combustion in goaf of the 102 fully mechanized caving island coal face located in 15# coal seam of Tianchi coal mine, the change law of oxygenation heating-up zone in goaf under different air supply volumes was studied according to the division standard of spontaneous combustion "three zones" in goaf, using the computational fluid dynamics software COMSOL. The scopes of oxygenation heating-up zone was determined,the fitting curve between air supply volume of working face and the width of oxygenation heating-up zone was obtained. The results showed that air leakage in goaf is the main reason for spontaneous combustion in goaf of U+I 102 caving face. The width of oxygenation heating-up zone increased with the increase of air supply volume of the working face. The concentration of CO in the 103 return air closed wall of goaf reduced from more than 20×10-6 at the beginning to 5×10-6 after equalizing. The field practice on the 102 fully mechanized caving island coal face showed that it is feasible to prevent spontaneous combustion of residual coal in goaf of Tianchi coal mine with the wind preventing fire technology.

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