| 高结晶水锰矿粉制备高性能球团研究 |
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| 引用本文： | 朱德庆,徐栋梁,潘建,陈栋,张文山.高结晶水锰矿粉制备高性能球团研究[J].钢铁,2009,44(5):11-0. |
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| 作者姓名： | 朱德庆 徐栋梁 潘建 陈栋 张文山 |
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| 作者单位： | 1.中南大学资源加工与生物工程学院， 湖南 长沙 410083；2.中南大学地学与环境工程学院， 湖南 长沙 410083 |
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| 摘 要： | 以进口高结晶水含量的锰矿粉为原料，经过开路二次高压辊磨预处理，模拟链篦机 回转窑工艺制备高强度高品位氧化球团。结果表明，对于品位为w(Mn)= 43.09%、 铁的质量分数为6.49%、烧损14.64%及0.5~8 mm占77.81%的锰矿粉，经过高压辊磨预处理，<0.045 mm占59.18%，比表面积高达2653 cm2/g，在添加2.0%的膨润土、造球时间7 min、生球水分（16±0.5）%的条件下，取得了生球落下强度23.1次/0.5m、抗压强度10.20 N/个的良好指标；球团在预热温度1050 ℃、预热时间10 min、焙烧温度1340 ℃、焙烧时间15 min的条件下在管炉内焙烧固结，成品球团矿抗压强度可达到2711 N/个。成品球团矿中w(Mn)= 49.11%，S、P等有害元素含量较低，是优质的高炉或电炉原料。
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| 关 键 词： | 锰矿粉 高结晶水 高压辊磨 氧化球团 |
Study on High Properties Pellets Produced by Manganese Ore Fines Containing High Combined Water |
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| ZHU De-qing,XU Dong-liang,PAN Jian,CHEN Dong,ZHANG Wen-shan.Study on High Properties Pellets Produced by Manganese Ore Fines Containing High Combined Water[J].Iron & Steel,2009,44(5):11-0. |
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| Authors: | ZHU De-qing XU Dong-liang PAN Jian CHEN Dong ZHANG Wen-shan |
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| Affiliation: | 1.School of Mineral Processing and Bioengineering, Central South University, Changsha 410083, Hunan， China； 2.School of Geoscience and Environmental Engineering, Central South University, Changsha 410083, Hunan， China |
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| Abstract: | Strong fired pellets were produced by simulating grate-kiln process to supply high-quality charges from some imported manganese ore fines containing high combined water,which was preliminarily pretreated by high press roll grinding.Manganese ore fines assaying 43.09% Mn,6.49% Fe,and 14.64% LOI,and with 77.81% ranging between 0.5 mm and 8 mm site,are pretreated up to the specific surface areas of 2 653 cm2/g and 59.18% passing 0.045 mm by passing the fines through press roller twice in open circuit.The finel... |
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| Keywords: | manganese ore fines high combined water high press roll grinding fired pellet |
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