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试验研究了从风口喷吹碱性熔剂对高炉炉料软熔性能和初渣性能的影响。结果表明,随着综合炉料碱度的减小,滴落温度略有降低,滴落初渣中FeO含量明显增加,初渣流动性改善。还发现,烧结矿碱度过高可能加大滴落初渣与炉腹初渣的碱度差距,对初渣的稳定性产生不利影响。理论计算分析表明,采用从风口喷吹熔剂的技术有利于提高高炉的产量。
The effects of blowing alkali fluxes on the reflow properties and initial slag properties of blast furnace charge were studied experimentally. The results showed that with the decrease of alkalinity, the dripping temperature decreased slightly, the content of FeO in dripping primary slag increased obviously, and the fluidity of primary slag improved. It was also found that the high alkalinity of sinter may increase the alkalinity difference between the primary slag and the primary slag of drip and adversely affect the stability of primary slag. Theoretical calculations show that the use of tuyere blowing flux technology will help improve the production of blast furnace.