钢包密闭喷粉脱硫脱氮的工业试验

Experimental Study of Powder Injection Desulphurization and Denitrification Refining Process with the Ladle-cover

摘要: 通过在18t钢包上进行的钢包密闭喷粉脱硫脱氮新工艺的试验表明:第1阶段脱硫率达到50%,脱氮率达到30%;第二阶段脱硫率达到65%,脱氮率达到40%.该工艺钢液中硫质量分数为4×10^-6,氮质量分数为12×10^-6.

Abstract: Powder injection desulphurization and denitrification refining process with the ladle-cover was studied. The experimental results showed that in first stage, desulphurization ratio reached the 50% and denitrification ratio reached the 30%. In second stage, desulphurization ratio reached the 65% and denitrific-ation ratio reached the 40%. The process reduced sulphur of molten steel to 4×10^-6 and nitrogen of molten steel to 12×10^-6. On the some time reduced the nitrogen. The experiment result supplied basic theory for the commerical test of the process.