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从煤粉燃烧动力学看,烧结料中碳粒直径从3毫米缩小到2毫米,可使燃尽时间缩短一半,能更充分利用燃料的化学能。高炉喷煤粉的粒径为200目时,燃尽时间在0.015～0.004秒之间,能保证煤气在循环区停留时间内燃烧完毕,不宜集中于几个风口喷吹,而应均匀分布。碳素燃烧在能量利用上占很重要的位置,煤粉的燃烧动力学可应用于烧结过程,也可以应用高炉喷煤过程,本文是这方面的一个尝试,不当之处,望不吝赐教。
From the combustion kinetics of pulverized coal, the carbon particle size in the sinter is reduced from 3 mm to 2 mm, which can shorten the burnout time by half and make full use of the chemical energy of the fuel. Pulverized coal injection blast furnace particle size of 200 mesh, burn time between 0.015 ~ 0.004 seconds, to ensure that gas stays in the circulation zone combustion time is completed, should not be concentrated in a few tuyere injection, but should be evenly distributed. Carbon combustion occupies a very important position in the energy utilization. The combustion kinetics of pulverized coal can be applied to the sintering process, and the blast furnace coal injection process can be applied. This article is an attempt in this area, inappropriate, hope to enlighten me.