关于转炉溅渣护炉的几个工艺问题

APPROACH TO SLAG SPLASHING ON CONVERTER

分析总结了国内转炉溅渣护炉的生产经验，提出：①溅渣护炉的合理渣量为：Ｑｓ＝０．３０１Ｗｎ（ｎ＝０．５８３～０．６５０）；②转炉参数与合理溅渣参数的关系为：Ｈ·ｄＤ＝１６．２４＋０．６０Ｑ·ｈｄ０．３３·ｔ；③适宜溅渣的合理终渣成分为：Ｒ＝２．８～３．５，（ＴＦｅ）＝１０％～１５％，ＭｇＯ＞８％；④转炉出钢温度对炉龄的影响为：ｎ＝２０８５２９－１２０．９ｔ。

The operation experience of slag splashing on different domestic converters is investigated,so the following conclusions and formulas are put forward in this article(1) Reasonable slag amount for slag splashing is Qs=0301Wn(n=0583～0650);(2) Relation between the operation parameters of converters and that of slag splashing is H·dD=1624+060Q·hd033·t;(3) Reasonable composition of end point slag for slag splashing is R=28～35,(TFe)=10 %～15 %,MgO>8 %;(4) Effect of end point temperature on the lining life of converter can be formulated as :n=208529-1209t