本文已被:浏览 2678次 下载 3225次
投稿时间:2014-01-03 修订日期:2014-01-06 录用日期:2014-01-06 网络发布日期:2014-02-25
投稿时间:2014-01-03 修订日期:2014-01-06 录用日期:2014-01-06 网络发布日期:2014-02-25
中文摘要: 采用正交试验和单因素试验考察还原温度、配碳量(nC/nO)、还原时间对某钒钛磁铁矿精矿直接还原的影响。结果表明,影响含碳球团金属化率的主次因素依次为还原温度、配碳量、还原时间。优化工艺参数为:还原时间35 min、还原温度1 350 ℃、配碳量1.25、水分9%、成型压力12 MPa、黏结剂加入量0.4%,此工艺条件下含碳球团的金属化率达91.77%,还原后球团的主要物相组成为金属铁。
Abstract:The effects of reduction temperature, mole ratio of carbon to oxygen (nC/nO) and reduction time on metallization rate of pellets were studied by orthogonal experiments and single factor experiments. The results show that the main affecting factors of metallization rate include reduction temperature, followed by nC/nO and reduction time. Under the optimum parameters of reduction time of 30 min, temperature of 1 350 ℃, nC/nO=1.25, moisture of 9%, moulding pressure of 12 MPa and content of binding agent of 0.4%, the metallization rate of reduced pellets can be improved to 91.77%, with phase composition of metallic iron.
keywords: vanadium and titanium iron concentrates reduction metallization rate orthogonal experiments
文章编号: 中图分类号: 文献标志码:
基金项目:国家自然科学基金资助项目(51174122);攀枝花市应用技术研究与开发项目(2013CY-G-32)
| 作者 | 单位 | |
| 李俊翰* | 攀枝花学院 | pasunning@163.com |
| 邱克辉 | 成都理工大学 | |
| 杨绍利 | 钒钛资源综合利用四川省重点实验室(攀枝花学院) |
| Author Name | Affiliation | |
| LI Junhan | Panzhihua University , Panzhihua | pasunning@163.com |
| QIU Kehui | ||
| YANG Shaoli |
引用文本:
李俊翰,邱克辉,杨绍利.钒钛铁精矿含碳球团直接还原试验[J].有色金属(冶炼部分),2014(3):5-8.
LI Junhan,QIU Kehui,YANG Shaoli.Direct Reduction of Carbon-containing Pellets from Vanadium Titanium Iron Concentrate[J].Nonferrous Metals (Extractive Metallurgy),2014(3):5-8.
李俊翰,邱克辉,杨绍利.钒钛铁精矿含碳球团直接还原试验[J].有色金属(冶炼部分),2014(3):5-8.
LI Junhan,QIU Kehui,YANG Shaoli.Direct Reduction of Carbon-containing Pellets from Vanadium Titanium Iron Concentrate[J].Nonferrous Metals (Extractive Metallurgy),2014(3):5-8.

关注微信公众号