Wang Fujia, Lü Qing, Chen Shujun. Research of TiO2/SiO2 Influence on Furnace Burden’s Dropping Performance of Vanadium-titanium Magnetite[J]. IRON STEEL VANADIUM TITANIUM, 2015, 36(6): 79-83. doi: 10.7513/j.issn.1004-7638.2015.06.015
Citation:
Wang Fujia, Lü Qing, Chen Shujun. Research of TiO2/SiO2 Influence on Furnace Burden’s Dropping Performance of Vanadium-titanium Magnetite[J]. IRON STEEL VANADIUM TITANIUM, 2015, 36(6): 79-83. doi: 10.7513/j.issn.1004-7638.2015.06.015
Wang Fujia, Lü Qing, Chen Shujun. Research of TiO2/SiO2 Influence on Furnace Burden’s Dropping Performance of Vanadium-titanium Magnetite[J]. IRON STEEL VANADIUM TITANIUM, 2015, 36(6): 79-83. doi: 10.7513/j.issn.1004-7638.2015.06.015
Citation:
Wang Fujia, Lü Qing, Chen Shujun. Research of TiO2/SiO2 Influence on Furnace Burden’s Dropping Performance of Vanadium-titanium Magnetite[J]. IRON STEEL VANADIUM TITANIUM, 2015, 36(6): 79-83. doi: 10.7513/j.issn.1004-7638.2015.06.015
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,the effect of different TiO2/SiO2 on charge softening temperature range,melting temperature range,maximum pressure and other high temperature physical properties had been respectively discussed. The results showed that with the increase of TiO2/SiO2 from 0.17 to 0.45 starting softening temperature of furnace charge was increased by 56 ℃,and the end softening temperature was increased by 35 ℃,which indicated the lower position of the cohesive zone; at the same time the renewed pressure temperature was increased by 40 ℃,and dropping temperature was increased by 30 ℃; the maximum pressure (ΔPmax) increased,which led to worse burden permeability; the total characteristic droplet value was increased,which resulted in low droplet performance. It can be concluded that with the increase of TiO2/SiO2 droplet performance got worse. Therefore,TiO2/SiO2 should be appropriately reduced under the existing burden structural conditions of Cheng steel.
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