Zhang Fang, An Shengli, Luo Guoping, Wang Yici. Study on Softening Melting Properties of BF Primary Slag and Medium-term Slag[J]. IRON STEEL VANADIUM TITANIUM, 2014, 35(5): 98-102. doi: 10.7513/j.issn.1004-7638.2014.05.018
Citation:
Zhang Fang, An Shengli, Luo Guoping, Wang Yici. Study on Softening Melting Properties of BF Primary Slag and Medium-term Slag[J]. IRON STEEL VANADIUM TITANIUM, 2014, 35(5): 98-102. doi: 10.7513/j.issn.1004-7638.2014.05.018
Zhang Fang, An Shengli, Luo Guoping, Wang Yici. Study on Softening Melting Properties of BF Primary Slag and Medium-term Slag[J]. IRON STEEL VANADIUM TITANIUM, 2014, 35(5): 98-102. doi: 10.7513/j.issn.1004-7638.2014.05.018
Citation:
Zhang Fang, An Shengli, Luo Guoping, Wang Yici. Study on Softening Melting Properties of BF Primary Slag and Medium-term Slag[J]. IRON STEEL VANADIUM TITANIUM, 2014, 35(5): 98-102. doi: 10.7513/j.issn.1004-7638.2014.05.018
Considering this fact that the slag skull on copper cooling stave is unstability and scales off frequently due to the worsen material condition and the increased combustion intensity of blast furnace (BF) ironmaking,the softening melting properties of BF primary slag and medium-term slag of had been studied based on the particularity of the compsitions of BF slag of Baotou Steel and Iron Company,and the work was implemented by means of test and phase diagram analysis.The results show that the weakly acidic BF slag is most unstable while w(FeO) is 15%.Meanwhile the influence of basicity on the stability of BF slag is more significant than that of FeO,and K2O is also more remarkable than FeO.Furthermore,the softening melting temperature will derease by 20℃ while w(K2O) increases per 0.5%,but the content of calcium fluoride increasing from 1.47% to 2.67% can not strongly affect the softening melting properties of BF slag.
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