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冶金系统的主要能耗是在高炉工序,约占冶金产品总能耗50％左右。高炉喷吹煤粉技术是80年代发展起来的一项高炉节能新技术,它是用价格低廉来源广泛的煤粉代替部分昂贵而稀缺的冶金焦,从而使焦比大幅度降低,生铁成本下降。但是,当喷吹的煤粉增加到一定量后,煤粉在炉缸内会出现燃烧不完全现象,不仅不能有效地利用其热能和化学能,还对高炉顺行产生不利影响。提高煤粉
The main energy consumption of the metallurgical system is in the blast furnace process, accounting for about 50% of the total energy consumption of metallurgical products. Blast furnace pulverized coal injection technology was developed in the 1980s as a blast furnace energy-saving new technology. It uses a wide range of low-cost coal instead of some expensive and scarce metallurgical coke, resulting in a substantial reduction in coke ratio and pig iron costs. However, when the amount of pulverized coal injection is increased to a certain amount, incomplete combustion of pulverized coal in the hearth can not only not effectively utilize its thermal and chemical energy, but also adversely affect the smooth operation of the blast furnace. Improve the pulverized coal