黑龙江科技大学学报2024，Vol.34Issue(2)：171-179,9.DOI:10.3969/j.issn.2095-7262.2024.02.002
甲烷/煤尘混合爆炸及最大爆炸压力的预测模型
Prediction model of methane/coal dust mixture explosion and maximum explosion pressure
张迎新 1王佳伟 1唐露1
作者信息
- 1. 黑龙江科技大学 安全工程学院,哈尔滨 150022
- 折叠
摘要
Abstract
This paper aims to investigate the potential explosion risk of methane and coal dust two-phase system.The experiment using 20 L spherical explosion test system studies the explosion law behind methane/coal dust mixture and the effect of initial turbulence on the explosion pressure of methane/coal dust mixture.The results show that the explosion pressure of methane/coal dust mixture is mainly decided by the mass concentration of coal dust in the two-phase system,and the maximum explosion pressure ris-ing rate and initial explosion pressure rising rate are mainly decided by the methane volume fraction in the two-phase system;when the coal dust concentration is 350 g/m3,the ignition delay time increases from 80 ms to 110 ms and 140 ms,the explosion duration increases by 67.716 5% and 94.953 1%,and the explosion pressure decreases by 14.123 5% and 32.199 3%,respectively.The proposed new prediction model for the maximum explosion pressure of methane and coal dust two-phase system has better applica-bility after testing.关键词
粉尘爆炸/混合物爆炸/爆炸超压预测Key words
dust explosion/mixture explosion/explosion overpressure prediction分类
矿山工程引用本文复制引用
张迎新,王佳伟,唐露..甲烷/煤尘混合爆炸及最大爆炸压力的预测模型[J].黑龙江科技大学学报,2024,34(2):171-179,9.
