Abstract
To reduce the slag sticking to snorkel and to increase the operation life of snorkel during ladle alloying process, B2O3-CaO (mass ratio 1:2) and CaF2-CaO(mass ratio 1:2) were respectively employed as modifiers added to ladle slag. The effects of modifier on weight of sticking slag and erosion rate were investigated. The results showed that the weight of slag sticking to snorkel is reduced, but the rate of modified ladle slag pervading into snorkel is increased with the increasing of modifier added into ladle slag. The optimal weight of modifier is about 10 percent of total weight of ladle slag. The results of test in practice indicate that the slag sticking to the snorkel has been reduced by the slag modification. At the same time, the industrial applied test results show that the operation life of snorkel is increased by more than 100 percent.
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