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4000米~3级高炉喷吹煤粉设计与中型高炉的喷煤设计是有区别的.在移植中型高炉的喷煤技术时,必须注意大型高炉的冶炼特点及与之相适应的技术装备水平.因此,大型高炉喷煤设计必须考虑如下特殊性:1) 热惯量大、炉温高大型高炉炉缸贮铁水量大,铁水温度高达1500℃.所以稳定高炉“炉热”十分重要,不允许“炉热”有较大地波动.喷吹煤
The pulverized coal injection at 4000m ~ 3 blast furnace is different from the pulverized coal injection at medium blast furnace.When injecting coal into medium blast furnace, it is necessary to pay attention to the smelting characteristics of large blast furnace and the corresponding technical equipment level. Therefore, the design of large-scale blast furnace coal injection must consider the following particularities: 1) large thermal inertia, high temperature furnace large blast furnace hearth storage of molten iron, hot metal temperature as high as 1500 ° C. So stable blast furnace Allow “furnace heat ” have greater fluctuations. PCI coal