| MgO添加方式对改善球团矿冶金性能的影响 |
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| 引用本文： | 周明顺,沈峰满,翟立委,刘杰,张辉. MgO添加方式对改善球团矿冶金性能的影响[J]. 钢铁, 2012, 47(4): 14-18 |
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| 作者姓名： | 周明顺 沈峰满 翟立委 刘杰 张辉 |
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| 作者单位： | 1. 鞍钢股份有限公司技术中心， 辽宁 鞍山 114009 2. 东北大学材料与冶金学院， 辽宁 沈阳 110004 |
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| 基金项目： | 国家发改委项目《高炉炼铁原料准备技术研究及其平台建设》 |
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| 摘 要： | 为改善球团矿的冶金性能，进行了含MgO球团矿的冶金性能试验研究，分析了不同MgO添加方式造球工艺的效果。结果表明，在合理的MgO添加方式下，对含MgO球团矿，氧化镁含量由0.6%提高到1.8%后，球团矿RDI+3.15由62.2%增加到约75%，还原度RI由34%增加到45%～53%（900℃还原1h），还原膨胀指数RSI（还原度40%）由23%降低到约20%，且软熔温度明显提高，冶金性能改善。认为提高氧化镁含量的方式应当是菱镁石或含MgO精矿粉，避免添加白云石。
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| 关 键 词： | MgO 熔剂性球团 冶金性能 球团 |
| 收稿时间： | 2011-07-13 |
Influences of MgO Adding Method on Improving Metallurgical Properties of Pellet |
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| ZHOU Ming-shun,SHEN Feng-man,ZHAI Li-wei,LIU Jie,ZHANG Hui. Influences of MgO Adding Method on Improving Metallurgical Properties of Pellet[J]. Iron & Steel, 2012, 47(4): 14-18 |
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| Authors: | ZHOU Ming-shun SHEN Feng-man ZHAI Li-wei LIU Jie ZHANG Hui |
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| Affiliation: | 1. Angang Steel Company Limited Technology Centre, Anshan 114009, Liaoning, China 2. School of Materials and Metallurgy Northeastern University, Shenyang 110004, Liaoning, China |
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| Abstract: | In order to improve the metallurgical properties of pellet,the experiments that MgO was put into the pellet were tested.And the influences of MgO adding method on technical of ability of ball were discussed.The results show as follows: With reasonable MgO additive method,when the MgO content increases from 0.6% to 1.8%,the low temperature reducible disintegration index(RDI+3.15) increases from 62.2% to 75%,the reducibility index(RI) increases from 34% to 45%-53%(1 h,900 ℃),the reducible swelling index(RSI) decreases from 23% to 20%(RI=40%),and the softening and melting temperature range of pellet can also be increased.To enhance MgO content,the magnesite and iron ore concentrate should be used,but not dolomite. |
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| Keywords: | MgO fluxed pellet metallurgical property pellet |
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