粒径影响改性凹凸棒土抑制甲烷爆炸实验研究
Experimental Study on Inhibition of Methane Explosion by Particle Size
陈凯峰 1杨克 2纪虹 2邢志祥 2蒋军成2
作者信息
- 1. 常州大学安全科学与工程学院、应急管理科学与工程学院,常州 213164;山东海科新源材料科技股份有限公司,东营 257000
- 2. 常州大学安全科学与工程学院、应急管理科学与工程学院,常州 213164
- 折叠
摘要
自主搭建小尺寸半封闭可视化爆炸实验平台,探究不同粒径改性凹凸棒土粉体对甲烷爆炸的影响.研究结果表明:小粒径粉体的抑爆效果最好,使最大爆炸超压下降了 36.05％,最大爆炸超压出现的时间延迟了 17.5 ms,火焰传播速度峰值同比下降了 24.50％.同时,借助高速摄影系统记录下爆炸全过程的视频图像,对火焰结构、锋面形状等进行分析.
Abstract
In order to explore the influence of attapulgite powder modified with different particle sizes on methane explosion,a small-size semi-closed visual explosion experimental platform should be built independently.Methane explosion effects of attapulgite powders modified with different particle sizes and without powder spraying were studied when methane concentration was 9.5％.The small particle size powder has the best detonation suppression effect,which reduces the maximum explosive overpressure by 36.05％,delays the occurrence time of the maximum explosive overpressure by 17.5ms,and reduces the peak flame propagation velocity by 24.50％compared with the same period.The video image of the explosion is recorded by the high-speed photographer,and the flame structure,ahead shape,etc.are analyzed.
关键词
改性凹凸棒土粉体/甲烷抑爆/粒度分布Key words
modified attapulgite powder/methane suppression/particle size distribution引用本文复制引用
基金项目
国家自然科学基金(51704041)
国家自然科学基金(52204204)
常州市重点研发计划社会发展项目(CE20235039)
出版年
2024
NETL
NSTL
万方数据