| 火法铜渣改质还原提铁试验研究 |
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| 引用本文： | 王苗,杨双平,庞锦琨.火法铜渣改质还原提铁试验研究[J].矿冶工程,2019,39(1):98-101. |
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| 作者姓名： | 王苗 杨双平 庞锦琨 |
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| 作者单位： | 西安建筑科技大学 冶金工程学院,陕西 西安710055;陕西省冶金工程技术研究中心,陕西 西安710055;西安建筑科技大学 冶金工程学院,陕西 西安,710055 |
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| 基金项目： | 陕西省教育厅专项科研计划项目(17JK0439);
西安建筑科技大学青年科技基金(QN1316) |
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| 摘 要： | 为有效回收铜渣中有价金属铁,模拟链篦机-回转窑工艺对火法铜渣进行了提铁试验研究。结果表明,含铁量为40.2%的铜渣,配加2%的B型添加剂,成球性能良好,且生球指标在碱度适宜条件下优良;采用模拟链篦机-回转窑工艺进行造球、熔炼试验,在碱度1.2、配碳量为理论碳当量的1.5倍、1 450 ℃下熔炼50 min,可以获得还原率79.7%、铁品位90.6%的二次铁资源。
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| 关 键 词： | 火法铜渣 提铁 还原熔炼 链篦机?回转窑 造球 |
| 收稿时间： | 2018-08-12 |
Experimental Study on Iron Reduction from Modified Pyrometallurgical Copper Slag |
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| WANG Miao,YANG Shuang-ping,PANG Jin-kun.Experimental Study on Iron Reduction from Modified Pyrometallurgical Copper Slag[J].Mining and Metallurgical Engineering,2019,39(1):98-101. |
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| Authors: | WANG Miao YANG Shuang-ping PANG Jin-kun |
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| Affiliation: | 1.School of Metallurgy Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, Shaanxi, China;
2.Shaanxi Province Metallurgical Engineering and Technology Research Center, Xi'an 710055, Shaanxi, China |
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| Abstract: | In order to effectively recover the valuable metallic iron from copper slag, an experiment was conducted for iron recovery from pyrometallurgical copper slag by a simulated grate-rotary kiln technique. The results showed that the copper slag with 40.2% Fe content presented good balling characteristics after an addition of 2% B-type additive, and under a proper alkalinity condition, the obtained green pellet showed better performance. The experiment on pelletization and smelting with the simulated grate-rotary kiln process, resulted in a secondary resource grading 90.6% Fe after smelting at 1 450 ℃ for 50 min, with alkalinity at 1.2 and carbon proportion 1.5 times as much as carbon equivalent, showing reduction rate reaching 79.7%. |
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| Keywords: | pyrometallurgical copper slag iron extraction reduction smelting grate-rotary kiln pelletization |
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