|
|
|
| The technology study of voluminal reduction on chromite ore fines containing silicon heated by microwave |
| WU Kui-lin1,2,3, LI Lei 1,2,3, ZHU Hong-bo1,2,3, PENG Jin-hui1,2,3,ZHANG Li-bo1,2,3, DAI Lin-qing1,2,3 |
1. National Local Joint Engineering Laboratory of Engineering Application of Microwave Energy and Equipment Technology, Kunming 650093, China
2. Key Laboratory of Unconventional Metallurgy, Ministry of Education, Kunming 650093, China
3. Faculty of Metallurgy and Energy Engineering, Kunming University of Science and Technology, Kunming 650093, China |
|
|
|
|
Abstract Influence of various smelting temperature, holding time and end-point temperature on the conglomeration, growing and separation of the Cr-Fe alloy during voluminal reduction on chromite ore fines containing silicon heated by microwave was studied. The chemical composition of reduction products Cr-Fe alloy was also analyzed. The results show that the reduction product Cr-Fe alloy conglomerates to block and separates from slags preferably at smelting temperature of 1 300 ℃, holding time of 40 minutes and end-point temperature of 1 450 ℃. The composition of reduction products Cr-Fe alloy meets requirements of (GB5683-87) FeCr55C25II.
|
|
Received: 16 September 2014
Published: 05 November 2015
|
|
|
|
| [1] 林勤, 刘人敏. 铬铁矿直接还原动力学研究[J]. 现代科学仪器, 1998, (5): 29-30.[2] 蒋仁全. 铬系合金生产工艺新进展概述[J]. 铁合金, 2005, (4): 44-49.[3] 贾振海. 粉状铬矿的预处理技术[J]. 铁合金, 1989, (3): 37-42.[4] 张友平, 李正邦, 薛正良. 生成不锈钢母液的铬矿粉利用技术[J]. 特殊钢, 2003, 24(1): 29-32.[5] 朱德庆, 李建, 范晓慧, 等. 铬铁矿粉造块方法综述[J]. 烧结球团, 2004, 29(2): 27-30.[6] 邱伟坚. 铬铁粉矿冷压球团工艺的实践应用[J]. 铁合金, 1994, (6): 44-48.[7] 赖志贤. 铬矿电冶炼性能的探讨[J]. 铁合金, 2002, (3): 4-9.[8] Thostenson E T, Chou T-W. Microwave processing: fundamentals and applications[J]. Coposites：Part A, 1999，30(9):1055-1071.[9] 陈津，刘浏，曾加庆，等. 微波加热还原含碳铁矿粉试验研究[J]. 钢铁, 2004, 39(6):1-5.[10] 牟群英，李贤军. 微波加热技术的应用与研究进展[J]. 物理，2004，33(6):438-42.[11] 蔡卫权，等. 微波技术在冶金中的应用[J]. 过程工程学报，2005，(2):228-232.[12] 陈娜娜，倪文. 尖晶石的矿物学特性及其在工业上的应用[J]. 地质评论，1994，40(1):28-34. |
|
|
|
2015, Vol. 25 
