工业窑炉在燃气、燃油等燃烧过程中,如果空气量不足,则不能充分燃烧。因此,加大一、二次风量进入窑炉,实现完全燃烧,已为人们所重视。但是,增加空气量,并不是越多越好。过剩空气量太多时,又会使烟道气大量增加,从窑内带走大量热量,使热损失增大,窑炉燃烧温度下降,使燃烧过程本身情况恶化,从而大大降低了工业窑炉的热效率,增加了能源消耗;而且还由于排烟量增多,烟气中高温含氧量增高而加剧窑炉和烟道的腐蚀以及增加氮氧化合物对大气的污染。对过剩空气量 Industrial kilns in the combustion of gas, fuel and other processes, if the lack of air, it can not be fully burned. Therefore, to increase primary and secondary air volume into the kiln, to achieve complete combustion, has been valued by people. However, increasing the amount of air is not the better. Too much excess air, will make a substantial increase in flue gas, take away a large amount of heat from the kiln, the heat loss increases, the combustion temperature of the kiln decreased, the deterioration of the combustion process itself, thus greatly reducing the industrial kiln Thermal efficiency, increased energy consumption; but also due to increased emissions, high flue gas oxygen content increased exacerbation of furnace and flue gas corrosion and increased nitrogen oxides to the atmosphere pollution. The amount of excess air