Wang Fujia, Lü Qing, Chen Shujun, Liu Ran, Li Fuming. Research on Influence of Basicity on Dropping Performance of Vanadium-titanium Burden[J]. IRON STEEL VANADIUM TITANIUM, 2015, 36(5): 92-96. doi: 10.7513/j.issn.1004-7638.2015.05.018
Citation:
Wang Fujia, Lü Qing, Chen Shujun, Liu Ran, Li Fuming. Research on Influence of Basicity on Dropping Performance of Vanadium-titanium Burden[J]. IRON STEEL VANADIUM TITANIUM, 2015, 36(5): 92-96. doi: 10.7513/j.issn.1004-7638.2015.05.018
Wang Fujia, Lü Qing, Chen Shujun, Liu Ran, Li Fuming. Research on Influence of Basicity on Dropping Performance of Vanadium-titanium Burden[J]. IRON STEEL VANADIUM TITANIUM, 2015, 36(5): 92-96. doi: 10.7513/j.issn.1004-7638.2015.05.018
Citation:
Wang Fujia, Lü Qing, Chen Shujun, Liu Ran, Li Fuming. Research on Influence of Basicity on Dropping Performance of Vanadium-titanium Burden[J]. IRON STEEL VANADIUM TITANIUM, 2015, 36(5): 92-96. doi: 10.7513/j.issn.1004-7638.2015.05.018
1. College of Metallurgy & Energy, North China University of Science and Technlogy, Key Laboratory for Advanced Metallurgy Technology, Ministry of Education, Tangshan 063009, Hebei, China;
2. School of Materials and Metallurgy, Northeastern University, Shenyang 110004, Liaoning, China
Experiments were carried out in the lab to simulate dropping zone of blast furnace in a high temperature oven,and the effect on charge softening temperature range,melting temperature range,maximum pressure,droplet comprehensive index and other high temperature physical properties at different basicity had been discussed. The results showed when the basicity had been increased within the range of 1.38~1.68,softening temperature were increased from 1 180 ℃ to 1 197 ℃,cohesive zone were narrowed down from 197 ℃ to 124 ℃,melting temperature were increased from 1 240 ℃ to 1263℃,dropping zone were narrowed down from 175 ℃ to 134 ℃,the maximum pressure (ΔPmax) were decreased from 14.70 k Pa to 8.71 k Pa which improved the blast furnace permeability,and the droplet comprehensive performance (S value) were decreased from 1 301 k Pa·℃ to 638 k Pa·℃,thusburden droplet became better. But part of indexes went downward after basicity exceeding 1.68,therefore basicity at 1.68 is the most reasonable for existing burden.
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