中国安全科学学报 ›› 2018, Vol. 28 ›› Issue (4): 47-52.doi: 10.16265/j.cnki.issn1003-3033.2018.04.009

• 安全工程技术科学 • 上一篇    下一篇

煤堆水平阴燃传播特性试验研究

亓冠圣1 讲师, 李敏2, 杨虎胜2, 王德明2 教授, 马李洋2   

  1. 1 山东科技大学 矿业与安全工程学院,山东 青岛 266590
    2 中国矿业大学 安全工程学院,江苏 徐州 221116
  • 收稿日期:2018-01-18 修回日期:2018-03-19 出版日期:2018-04-28 发布日期:2020-09-28
  • 作者简介:亓冠圣(1989—),山东莱芜人,博士,讲师,从事地下空间火灾防治理论与方法的研究。E-mail:qgs_fire@sdust.edu.cn。
  • 基金资助:
    国家重点研发计划项目(2016YFC0801800);山东省自然科学基金资助(ZR2018BEE003);山东科技大学矿业与安全工程学院全员引导基础研究项目(01AQ01905);山东科技大学人才引进科研启动基金资助(2017RCJJ005)。

Experimental study on propagation characteristics of horizontal smoldering combustion of coal pile

QI Guansheng1, LI Min2, YANG Husheng2, WANG Deming2, MA Liyang2   

  1. 1 College of Mining and Safety Engineering, Shandong University of Science and Technology, Qingdao Shandong 266590, China
    2 School of Safety Engineering,China University of Mining and Technology,Xuzhou Jiangsu 221116,China
  • Received:2018-01-18 Revised:2018-03-19 Online:2018-04-28 Published:2020-09-28

摘要: 为探索封闭火区阴燃煤堆的温度分布及其变化过程,开展煤堆水平阴燃传播特性试验研究。结果表明:前向阴燃燃烧过程中存在70~80℃区间内的温度平台现象,反向阴燃燃烧过程中不存在这种平台现象。反向阴燃的最高温度远高于前向阴燃。水平前向阴燃中,热解前沿与氧化前沿在初始阶段未发生明显分离,在一定时间后会逐渐分开。在水平反向阴燃中,热解前沿与氧化前沿从点燃开始即发生明显分离。

关键词: 煤堆, 水平阴燃, 氧化, 热解, 传播速度, 温度变化

Abstract: In order to explore the temperature distribution and its dynamic development process of the smoldering combustion of coal pile in the closed fire zone, experiments were carried out on smoldering combustion of coal pile. The results show that there is a temperature platform in the range of 70-80 ℃ in the forward smoldering combustion process, but there is not such a platform in the reverse smoldering combustion process, that the maximum smoldering reverse temperature is much higher than the smoldering forward temperature, that in horizontal forward smoldering, there is no obvious separation between the pyrolysis frontier and oxidation frontier in the initial stage, and they will separate from each other gradually after a certain period of time, and that in horizontal reverse smoldering, the pyrolysis frontier and oxidation frontier separate from each other obviously from the beginning of ignition.

Key words: coal pile, horizontal smoldering combustion, oxidation, pyrolysis, propagation velocity, temperature variation

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