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由于高炉除尘灰含有大量的铁和碳,将其作为含铁原料和含碳燃料从风口喷入高炉无疑是处理除尘灰的一种有效途径.考虑到喷吹除尘灰将影响风口前及炉内的状况,本文通过建立物料平衡和热平衡模型计算了焦比、炉渣碱度和理论燃烧温度随喷入除尘灰的变化.结果表明,焦比、炉渣碱度和理论燃烧温度将随除尘灰喷入量的增加而下降,且理论燃烧温度下降幅度很小,仅为0.28℃/kg,这些变化可通过调整配料来应对.
As the blast furnace dust contains a lot of iron and carbon, as iron-containing raw materials and carbon-containing fuel from the tuyere into the blast furnace is undoubtedly an effective way to deal with dust.Considering the injection dust will affect the tuyere before and in the furnace The paper has calculated the changes of coke ratio, basicity of slag and theoretical combustion temperature with dusting by injecting dust through the establishment of the material balance and heat balance model.The results show that the coke ratio, basicity of slag and theoretical combustion temperature will be injected with the dust The amount of increase and decrease, and the theoretical decrease in the combustion temperature is small, only 0.28 ℃ / kg, these changes can be adjusted by the ingredients to deal with.