煤矿安全2024，Vol.55Issue(7)：78-84,7.DOI:10.13347/j.cnki.mkaq.20230915
不同因素对煤粉云燃爆危险性参数的影响实验研究
Experimental study on the influence of different factors on the explosion risk parameters of pulverized coal cloud
摘要
Abstract
In order to study the factors affecting the ignition risk parameters of pulverized coal cloud,Godbert-Greenwald constant tem-perature furnace was used to test the minimum ignition temperature of pulverized coal cloud under different particle size,mass concen-tration and powder injection pressure conditions.The results show that the minimum ignition temperature increases with the increase of particle size.In the range of 0.250-0.667 kg/m3,the mass concentration of pulverized coal decreases with the increase of mass fraction,and the minimum value is 545℃.With the increase of dusting pressure,it changes in the shape of"V".The degree of influence of the three factors on the minimum ignition temperature is as follows:mass fraction>powder injection pressure>coal particle size.关键词
煤粉云/燃爆危险性/最小点火能/最低着火温度/喷粉压力Key words
pulverized coal cloud/explosion hazard/minimum ignition energy/minimum ignition temperature/spray powder pressure分类
矿山工程引用本文复制引用
严月园,姚刚,马砺,范晶,桑威,马腾,王光明..不同因素对煤粉云燃爆危险性参数的影响实验研究[J].煤矿安全,2024,55(7):78-84,7.基金项目
国家自然科学基金重点资助项目(52174206) （52174206）
