化工学报2024，Vol.75Issue(6)：2109-2122,14.DOI:10.11949/0438-1157.20240146
气粉两相体系爆炸动力学特性及机理研究进展
Research progress on explosion dynamic characteristics and mechanism of hybrid mixtures
摘要
Abstract
Combustible dust and flammable gases are widely present in all aspects of industry and trade.Even when the concentrations of dust and gas are below the lower explosion limit,the mixed system still has the possibility of explosion.Compared with a single dust or gas,the hybrid mixtures have a higher explosion risk.In this paper,the explosion sensitivity parameters,explosion intensity parameters,flame propagation characteristics and its explosion mechanism of hybrid mixtures are investigated from three aspects(explosion conditions,explosion effect and explosion mechanism).The results show that the explosion characteristics of hybrid mixtures are mainly affected by the powder particle size,powder concentration,powder physicochemical properties and combustible gas concentration,and there are great differences between different hybrid mixtures.In addition,hybrid mixtures are divided into two major categories based on the powder thermal stability,and the explosion mechanism of different hybrid mixtures is examined.Based on this,the future research work focusing on the explosion prevention and control of hybrid mixture is put forward,which provides theoretical guidance for the safe production of gas-powder related explosive enterprises in industrial and mining sectors.关键词
安全/爆炸/混合物/爆炸敏感度/爆炸特性/爆炸机理/两相体系Key words
safety/explosions/mixtures/explosion sensitivity/explosion characteristics/explosion mechanism/hybrid mixtures分类
化学化工引用本文复制引用
苏彬,董浩伟,罗振敏,邓军,王涛,程方明..气粉两相体系爆炸动力学特性及机理研究进展[J].化工学报,2024,75(6):2109-2122,14.基金项目
国家自然科学基金项目(52304252) （52304252）
