• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Powder Technology: An International Journal on the Science and Technology of Wet and Dry Particulate Systems >Experimental study on the explosion-propagation law of coal dust with different moisture contents induced by methane explosion
【24h】

Experimental study on the explosion-propagation law of coal dust with different moisture contents induced by methane explosion

机译：甲烷爆炸诱导不同水分含量的煤尘爆炸 - 繁殖规律的实验研究

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

This study aimed to explore the explosion-propagation law of coal dust with different moisture contents induced by methane explosion. An experimental system of explosion of mixed gas-coal and dust in a straight pipe was established in our laboratory. The evolution of overpressure and the flame-propagation law of deposited-coal dust explosion with different moisture contents were then studied. Experimental results indicate that when the moisture content is less than 15.12%, the deposited coal dust in the pipeline explodes under the induction of gas explosion. Meanwhile, the total amount of deposited coal dust in the pipeline remains constant: the overpressure peak value and flame-propagation velocity after coal-dust explosion initially increase and then decrease with increased coal-dust moisture content. When the moisture content of the deposited coal dust is 9.57%, the overpressure and flame-propagation velocity of the depositional coal-dust explosion reach the maximum values of 0.766 MPa and 468.553 m/s, respectively. However, when the moisture content exceeds 20.28%, coal dust cannot induce an explosion, and the deposited coal dust can resist a gas explosion. Overall, this research provides theoretical references for methane-induced coal-dust-explosion resistance in coal mines. (C) 2019 Published by Elsevier B.V.
机译：本研究旨在探讨煤粉与甲烷爆炸诱导的不同水分含量的爆炸 - 繁殖规律。在我们的实验室建立了一个混合气体爆炸实验系统，在直管中建立了爆炸。然后研究了过压和沉积煤粉粉尘爆炸爆炸法的荧光法的演变。实验结果表明，当水分含量小于15.12％时，管道中的沉积煤尘在燃气爆炸诱导下爆炸。同时，管道中沉积煤尘的总量保持恒定：煤尘爆炸初步增加后的超压峰值和火焰繁殖速度，然后随着煤尘水分含量增加而降低。当沉积的煤粉的水分含量为9.57％时，沉积煤粉尘爆炸的过压和火焰传播速度分别达到0.766MPa和468.553 m / s的最大值。然而，当水分含量超过20.28％时，煤尘不能诱导爆炸，沉积的煤尘可以抵抗煤气爆炸。总体而言，该研究为煤矿中甲烷诱导的煤粉爆炸抗性提供了理论参考。 （c）2019年由elestvier b.v发布。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号