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在氧气转炉的造渣操作中采用白云石,使得转炉炉龄大幅度提高.但是,也发生一些问题,例如终渣成多块粘稠状使操怍困难、转炉炉底和炉缸堆积缩小使生产率降低,以及发生喷枪粘钢等等.在本文中讨论了使用白云石造渣的基本原理.并且指出,为了防止炉衬侵蚀所要加的白云石数量取决于吹炼初期形成碱性炉渣的速度.初期渣碱度增长迅速时,避免炉衬侵蚀所必需加的白云石数最要比初期渣碱度增长缓慢时少一些.因此通过措施加速初期渣碱度提高速度,可以降低白云石用量,从而可能克服上面提及的那些问题,而不降低炉龄.
The use of dolomite in the slagging operation of the oxygen converter has resulted in a substantial increase in the furnace age, but some problems have also arisen, for example, the final residue becomes sticky and difficult to operate, the furnace bottom and the hearth become smaller Lower production rates, gun sticking, etc. In this paper, the rationale for dolomite slagging is discussed, and the number of dolomites added to prevent erosion of the lining depends on the rate at which basic slag forms during the early stages of blowing. When slag alkalinity increases rapidly, the number of dolomite needed to avoid lining erosion should be less than that of initial slag alkalinity, so the amount of dolomite can be reduced by accelerating the increase of initial slag alkalinity by measures to reduce the amount of dolomite The problems mentioned above without reducing the furnace age.