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阐述了鞍钢目前高炉除尘灰产生的工艺流程和利用方式,对除尘灰的化学成分、粒度组成进行了分析,并对喷吹煤粉中添加除尘灰进行实验室研究,分析了配入不同比例除尘灰后,混合煤粉的工业分析、灰熔融性能、发热值和燃烧性能的变化情况,开展喷吹煤粉中配入除尘灰的工业试验,寻求适合配入比例,并对高炉喷吹除尘灰后的炉况的变化及喷吹除尘灰的优缺点进行说明,得出鞍钢在目前的生产条件下,高炉可以进行除尘灰的喷吹应用。
The technological process and utilization method of dust removal ash from blast furnace in Anshan Iron and Steel Co. Ltd. are introduced. The chemical composition and particle size composition of dust removal ash are analyzed. The laboratory research on the addition of dust removal to pulverized coal injection is carried out. Ash, the industrial analysis of mixed pulverized coal, ash melting performance, calorific value and combustion performance changes, to carry out industrial pulverized coal injection dust dedusting to find the appropriate ratio, and the blast furnace blast dust After the changes in furnace conditions and the advantages and disadvantages of injection dust ash to illustrate the Anshan Iron and Steel obtained in the current production conditions, blast furnace dust can be used for dust injection.