对转炉双渣操作时的前期渣和终点渣中微观区域里磷的微观富集规律进行了研究,发现微区碱度Rm为2.0~2.5的微区中磷的富集程度最高;前期渣和终点渣中钙质量分数分别为16%~20%、33%~37%的微区中磷质量分数较高;微区磷富集与硅质量分数关系密切,终点渣微区中硅质量分数为9%~12%、前期渣微区中硅质量分数为13%~14%时,磷质量分数最高;微区铁质量分数对磷富集的影响明确,铁质量分数为5%~9%时磷质量分数最大;镁质量分数低的微区中磷质量分数较高.
The phosphorus enrichment in different microarea of the earlier and final slag during the double-slag operation in converter was studied.The results show that the enrichment level of P is the highest in the microarea whose Rm is between 2.0 to 2.5.And the P mass fraction is higher in slag microarea whose Ca mass fraction in the earlier and final slag is between 16%~20% and 33%~33%,respectively.The P enrichment in microarea is closely related to the Si mass fraction,and the P mass fraction is at higher point in the microarea whose Si mass fraction is 9%~12% in final slag and 13%~14% in earlier slag.The Fe mass fraction in the microarea has clear impact on the P enrichment,and the P mass fraction can get the maximum value when the Fe mass fraction is between 5%~9%.The higher P mass fraction appears in the microarea whose Mg mass fraction is low.
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