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朱学谨
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摘要: 进行了LF精炼终渣用于半钢预脱磷的可行性分析及试验研究,试验结果表明LF精炼终渣能够用于半钢预脱磷,且配加适量白云石后,脱磷效果良好,最小脱磷率为61.31%,最大脱磷率为71.76%,平均脱磷率为65.03%。与对比试验的最大脱磷率55.36%相比,脱磷率分别提高10.75%、29.62%、17.47%;试验的最佳工艺参数为枪位1 700mm,供氧流量18 500m3/h,供氧时间360s,精炼终渣加入量2.0t,白云石加入量为1.0t,底吹气体流量300~400m3/h。
关键词: LF炉精炼终渣, 半钢预脱磷, 可行性, 脱磷率
Abstract: This paper mainly related to the feasibility and experimental research on predephosphorization of semi-steel with LF refining final slag. The experimental results showed that LF refining final slag could be used for predephosphorization of semi-steel,and the dephosphorization effect was good after adding appropriate amount of dolomite. The minimum,maximum,and average dephosphorization rates were 61.31%,71.76%,and 65.03%,respectively,which were higher than that of the contrast test with 55.36% dephosphorization rate by 10.75%,29.62% and 17.47%,respectively. The optimum process parameters in this work were 1 700 mm top lance height,18 500 m3/h oxygen flow rate,360 s oxygen blowing time,2.0 t LF refining final slag addition,1.0 t dolomite addition,and 300—400m3/h bottom blowing gas flow rate.
Key words: LF refining final slag, predephosphorization of semi-steel, feasibility, dephosphorization rate
朱学谨. LF精炼终渣用于半钢预脱磷的试验研究[J]. 炼钢.
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链接本文: http://journal05.magtechjournal.com/Jwk3_gt/lg/CN/
http://journal05.magtechjournal.com/Jwk3_gt/lg/CN/Y2019/V35/I5/1