Ma Baoliang, Zhang Yuzhu, Pan Xiangyang, Long Yue, Li Shenzi, Du Peipei. Effect of MgO/Al2O3 and Burden Structure on Droplet Properties of Comprehensive Burden[J]. IRON STEEL VANADIUM TITANIUM, 2019, 40(5): 126-132. doi: 10.7513/j.issn.1004-7638.2019.05.021
Citation:
Ma Baoliang, Zhang Yuzhu, Pan Xiangyang, Long Yue, Li Shenzi, Du Peipei. Effect of MgO/Al2O3 and Burden Structure on Droplet Properties of Comprehensive Burden[J]. IRON STEEL VANADIUM TITANIUM, 2019, 40(5): 126-132. doi: 10.7513/j.issn.1004-7638.2019.05.021
Ma Baoliang, Zhang Yuzhu, Pan Xiangyang, Long Yue, Li Shenzi, Du Peipei. Effect of MgO/Al2O3 and Burden Structure on Droplet Properties of Comprehensive Burden[J]. IRON STEEL VANADIUM TITANIUM, 2019, 40(5): 126-132. doi: 10.7513/j.issn.1004-7638.2019.05.021
Citation:
Ma Baoliang, Zhang Yuzhu, Pan Xiangyang, Long Yue, Li Shenzi, Du Peipei. Effect of MgO/Al2O3 and Burden Structure on Droplet Properties of Comprehensive Burden[J]. IRON STEEL VANADIUM TITANIUM, 2019, 40(5): 126-132. doi: 10.7513/j.issn.1004-7638.2019.05.021
1. School of Metallurgy, Northeastern University, Shenyang 110819, Liaoning, China;
2. Xingtai Iron and Steel Co., Ltd., Xingtai 054027, Hebei, China;
3. School of Metallurgy and Energy, North China University of Science and Technology, Modern Metallurgical Technique Key Laboratory of Ministry of Education, Tangshan 063210, Hebei, China
Effect of MgO/Al2O3 and burden structure on droplet properties of comprehensive burden was studied by simulating actual blast furnace smelting conditions in high temperature drop furnace.The results show that when MgO/Al2O3 increases from 0.9 to 1.0,the softening and melting temperatures of furnace charge increase,the maximum pressure difference and total characteristic values of furnace charge decrease from 3 057 Pa and 202.84 kPa·℃ to 1 911 Pa and 116.52 kPa·℃,respectively,and the droplet properties are improved; when sinter ratio decreases from 68% to 60%,the softening temperature of furnace charge decreases,the melting temperature changes little,the maximum pressure difference and total characteristic values are respectively.From 1 911 Pa and 116.52 kPa·℃ to 1 440.6 Pa and 75.10 kPa·℃,the droplet performance was improved.Combining the pressure difference change and the droplets and non-droplets in the process of droplet melting,it is concluded that when sinter MgO/Al2O3=1.0 and burden structure is 68% sinter+16% flux pellet+16% lump ore,the droplet performance of the comprehensive burden is the best.
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