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Research and application of blast furnace’s low[w(MgO)]slag in Ansteel |
LIU Jie1,ZHAO Dong-ming2,LI Jian-jun2,ZHOU Ming-shun1,ZHANG Hui1,XU Li-bing1 |
(1. Iron and Steel Research Institute, Angang Group, Anshan 114009, Liaoning, China 2. Ironmaking Plant, Ansteel Company Limited, Anshan 114021, Liaoning, China) |
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Abstract In order to improve technical and economic indexes of blast furnace, the metallurgical properties of low [w(MgO)] slag were studied and evaluated systematically by laboratorial and industrial test in Ansteel. The results show that under the low Al2O3 load in blast furnace, the[w(MgO)]in slag is 4%-7%,and the melting temperature of all the slag is less than 1 350 ℃. When the temperature of slag is 1 500 ℃, the viscosity of the slag can satisfy the need of blast furnace in theory with[w(MgO)]over 3%. The best basicity of slag is about 1.245. Under the production condition in industry, the[w(MgO)]of slag is controlled in 4.5%-5.0%, and the viscosity of slag is about 0.16-0.20 Pa·s. The desulfurization capacity of the slag may not fall down when[w(MgO)]in slag decreases by optimizing basicity of slag. The production cost from BF operation decreases obviously and 17 kg/t(Fe) of the slag ratio is almost reduced by adopting new technology. So, it helps to implement green sustainable development.
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Received: 21 June 2017
Published: 16 March 2018
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[1] |
邓美乐,韩秀丽,刘磊,等.MgO对中钛型高炉渣矿相结构及冶金性能的影响[J].钢铁,2016,51(4):14-17.(DENG Mei-le, HAN Xiu-li, LIU Lei, et al. Influence of MgO on mineral structure and metallurgical properties of blast furnace slag with medium titanium[J].Iron and Steel, 2016,51(4):14.)
|
[1] |
邓美乐,韩秀丽,刘磊,等.MgO对中钛型高炉渣矿相结构及冶金性能的影响[J].钢铁,2016,51(4):14-17.(DENG Mei-le, HAN Xiu-li, LIU Lei, et al. Influence of MgO on mineral structure and metallurgical properties of blast furnace slag with medium titanium[J].Iron and Steel, 2016,51(4):14.)
|
[2] |
李福民,吕庆,胡宾生,等.高炉渣的冶金性能及造渣制度[J].钢铁,2006,41(1):19-22.(LI Fu-min, LU Qing, HU Bin-sheng, et al. Metallurgical properties of BF slag and slagging regime[J].Iron and Steel,2006,41(1):19.)
|
[2] |
李福民,吕庆,胡宾生,等.高炉渣的冶金性能及造渣制度[J].钢铁,2006,41(1):19-22.(LI Fu-min, LU Qing, HU Bin-sheng, et al. Metallurgical properties of BF slag and slagging regime[J].Iron and Steel,2006,41(1):19.)
|
[3] |
许仁泽,张贺顺,张建良,等.京唐高炉渣性能评价及低镁渣性能分析[J].中国冶金,2016,26(11):16.(XU Ren-ze, ZHANG He-shun, ZHANG Jian-liang, et al, Evalation of Jingtang blast furnace slag properties and analysis of low MgO slag performance[J]. China Metallurgy,2016,26(11):16.)
|
[3] |
许仁泽,张贺顺,张建良,等.京唐高炉渣性能评价及低镁渣性能分析[J].中国冶金,2016,26(11):16.(XU Ren-ze, ZHANG He-shun, ZHANG Jian-liang, et al, Evalation of Jingtang blast furnace slag properties and analysis of low MgO slag performance[J]. China Metallurgy,2016,26(11):16.)
|
[4] |
汤登军,王云术,王燕,等.莱钢3200m3高炉低(MgO)生产实践[J].炼铁,2015,34(2):31.(TANG Deng-jun, WANG Yun-shu, WANG Yan, et al. Low MgO Smelting Practice of Laiwu Steel’s 3200m3 BF[J].Ironmaking, ,2015,34(2):31.)
|
[4] |
汤登军,王云术,王燕,等.莱钢3200m3高炉低(MgO)生产实践[J].炼铁,2015,34(2):31.(TANG Deng-jun, WANG Yun-shu, WANG Yan, et al. Low MgO Smelting Practice of Laiwu Steel’s 3200m3 BF[J].Ironmaking, ,2015,34(2):31.)
|
[5] |
郭靖,程树森,赵宏博.基于结构理论SiO2-CaO-MgO-Al2O3熔渣黏度的预报模型[J]. 钢铁研究学报,2013,25(8): 6. (GUO Jing, CHENG Shu-sen, ZHAO Hong-bo. Modeling Research for Estimating Viscosity of Si02-CaO-MgO-A1203 System Molten Slag Based on Slag Structure Theory[J]. Journal of Iron and Steel Research, 2013, 25(8): 6.)
|
[5] |
郭靖,程树森,赵宏博.基于结构理论SiO2-CaO-MgO-Al2O3熔渣黏度的预报模型[J]. 钢铁研究学报,2013,25(8): 6. (GUO Jing, CHENG Shu-sen, ZHAO Hong-bo. Modeling Research for Estimating Viscosity of Si02-CaO-MgO-A1203 System Molten Slag Based on Slag Structure Theory[J]. Journal of Iron and Steel Research, 2013, 25(8): 6.)
|
[6] |
何环宇,王庆祥,曾小宁. MgO含量对高炉炉渣黏度的影响[J]. 钢铁研究学报,2006,18(6):11.(HE Huan-yu,WANG Qing- xiang,ZENG Xiao-ning. Effect of MgO content on BF slag viscosity [J]. Journal of Iron and Steel Research,2006,18(6):11.)
|
[6] |
何环宇,王庆祥,曾小宁. MgO含量对高炉炉渣黏度的影响[J]. 钢铁研究学报,2006,18(6):11.(HE Huan-yu,WANG Qing- xiang,ZENG Xiao-ning. Effect of MgO content on BF slag viscosity [J]. Journal of Iron and Steel Research,2006,18(6):11.)
|
[7] |
沈峰满,郑海燕,姜鑫,等.高炉炼铁工艺中Al2O3的影响及适宜w(MgO)/w(Al2O3) 的探讨[J]. 钢铁,2014,49(1):1.(SHEN Feng- man,ZHENG Hai- yan,JIANG Xin,et al. Influence of Al2O3 in blast furnace smelting and discussions on proper w(MgO) / w(Al2O3) ratio[J]. Iron and Steel,2014,49(1):1.)
|
[7] |
沈峰满,郑海燕,姜鑫,等.高炉炼铁工艺中Al2O3的影响及适宜w(MgO)/w(Al2O3) 的探讨[J]. 钢铁,2014,49(1):1.(SHEN Feng- man,ZHENG Hai- yan,JIANG Xin,et al. Influence of Al2O3 in blast furnace smelting and discussions on proper w(MgO) / w(Al2O3) ratio[J]. Iron and Steel,2014,49(1):1.)
|
[8] |
孙忠贵.氧化镁对高铝渣稳定性影响[J]. 钢铁,2014,49(4):18.(SUN Zhong-gui. Effect of MgO on high aluminous slag stability[J]. Iron and Steel,2014,49(4):18.)
|
[8] |
孙忠贵.氧化镁对高铝渣稳定性影响[J]. 钢铁,2014,49(4):18.(SUN Zhong-gui. Effect of MgO on high aluminous slag stability[J]. Iron and Steel,2014,49(4):18.)
|
[9] |
SHEN F M,JIANG X,WU G S. Proper MgO addition in blast furnace operation[J]. ISIJ International,2006,46(1):65.
|
[9] |
SHEN F M,JIANG X,WU G S. Proper MgO addition in blast furnace operation[J]. ISIJ International,2006,46(1):65.
|
[10] |
郭德勇,张杰.鲁德昌,等.碱度对CaO-SiO2-Al2O3-MgO-TiO2渣系黏度的影响[J].钢铁,2014,49(10):13. (GUO De-yong,ZHANG Jie,LU De- chang,et al. Effect of R on viscosity of CaO-SiO2-Al2O3 -MgO-TiO2 in blast furnace slags [J]. Iron and Steel,2014,49(10):13.)
|
[10] |
郭德勇,张杰.鲁德昌,等.碱度对CaO-SiO2-Al2O3-MgO-TiO2渣系黏度的影响[J].钢铁,2014,49(10):13. (GUO De-yong,ZHANG Jie,LU De- chang,et al. Effect of R on viscosity of CaO-SiO2-Al2O3 -MgO-TiO2 in blast furnace slags [J]. Iron and Steel,2014,49(10):13.)
|
[11] |
张旭升,吕庆,刘小杰,等.高炉炉渣中钛、镁、铝最优配比[J].钢铁,2015,50(6);8. (ZHANG Xu-sheng, Lv Qing, LIU Xiao-jie, et al. Optimal proportion of Ti, Mg and Al in BF slag[J]. Iron and Steel, 2015,50(6):8.)
|
[11] |
张旭升,吕庆,刘小杰,等.高炉炉渣中钛、镁、铝最优配比[J].钢铁,2015,50(6);8. (ZHANG Xu-sheng, Lv Qing, LIU Xiao-jie, et al. Optimal proportion of Ti, Mg and Al in BF slag[J]. Iron and Steel, 2015,50(6):8.)
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