采用模拟HIsmelt的富氧顶吹熔融还原技术冶炼惠民高磷铁矿与勐桥钛铁矿配矿,在温度为1 500K,碱度为1.3,配碳比为1.0的条件下,恒温时间20min（在升温过程中,没有通入惰性气体）,恒温过程中通入O2（流量250L/h、纯度为99%）10min。恒温时间结束后,调整氧气流量为5L/h,保持其氧化性气氛至冷却。研究了不同配矿比例对铁回收率、生铁中磷、硫含量以及磷、硫分配比的影响。研究结果表明,在惠民铁矿和勐桥精矿的比例为1∶1时,其冶炼结果比较理想：铁的回收率为95.1%,生铁中磷的质量分数约为0.32%,硫的质量分数为0.054%,钛的质量分数为0.031%。
Huimin high-phosphorus iron ore and ilmenite from Yunnan province was smelted by oxygen enriched top- blown smelting reduction iron-making technology. Much more details, such as iron recovery rate, distribution ratio of phosphorus and sulfur were discussed. Iron recovery could reach 95% with phosphorus content about 0.32%, sulfur content 0. 054% and titanium content 0. 031% in pig iron produced, under the conditions of 20min holding time at 1500 K, basicity R of 1.3, C/O mole ratio of 1.0 and oxygen enriched flow rate of 250 L/h and ore blending ratio of 1 ： 1. Oxidizing potential of top-space of SRV and slag combination can create the driving force to partition phosphorous and titanium to the slag, which ensure the success of the experiment.
参考文献
| [1] | 薛步高.云南钛铁矿地质特征及开发探讨[J].化工矿产地质,2001(01):53-58. |
| [2] | 周传典.钒钛铁矿冶炼试验研究[J].鞍钢技术,2004(02):1-3. |
| [3] | 邓国珠 .云南钛铁矿资源的利用研究[J].钛工业进展,1999,3:30. |
| [4] | 鞠会霞 .磁化焙烧法处理高磷赤铁矿研究[D].北京:北京科技大学,2008. |
| [5] | LI Hui-bin,WANG Hua,QI Yi-long,HU Jian-hang,LI You-ling.Ilmenite Smelted by Oxygen-Enriched Top-Blown Smelting Reduction[J].钢铁研究学报（英文版）,2011(02):7-13. |
| [6] | Dark P Davis;Rod J Dry;M PHilip Schwarz.The Role of CFD Modeling in Development of the HIsmelt Process[A].Indianapolis,2003 |
| [7] | K Brotzmann.New Concepts and Methods for Iron and Steel Production[A].ISS-AIME,1987:3. |
| [8] | M J Buekley.Value of Hlsmelt Pig Iron to Steelmakers[A].,1999 |
- 下载量()
- 访问量()
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%