矿井内发生火灾时,往往会产生大量的火烟。火烟中除含有碳质微粒外,尚有多量的一氧化碳(CO)、二氧化碳(CO_2)等有毒有害气体,对井下工作人员带来极大的威胁。特别是当人们对火灾时期的风流变化规律不甚了解时,在处理火灾中由于采取措施不当,常会造成火烟弥漫矿井的事故,那就危害更大。 When a fire occurs in a mine, a large amount of fire smoke is often generated. In addition to the carbonaceous particles contained in the fire smoke, there is still a large amount of toxic and harmful gases such as carbon monoxide (CO) and carbon dioxide (CO2), posing a great threat to the underground workers. Especially when people are not familiar with the changing rules of the wind during the fire, it is even more harmful to deal with the accidents of fireworks that cause the mine to be mined frequently.