|
|
|
| Effect of Preheating and Roasting Parameters on Pellet Property of Super-Fine Magnetite Concentrate |
| FAN Jian-jun,ZHANG Wen-ping,LIU Ci-guang,ZHAO Guo-dong,XI Yu-ming |
| Taiyuan Iron and Steel Group Co.，Ltd., Taiyuan 030003，Shanxi, China |
|
|
|
|
Abstract One kind of super-fine magnetite concentrates with nearly 89% of the material being minus 0.044mm was investigated to make the pellets. The results show that the compression strength of preheated and finished pellets would decrease when the pellets being preheated or roasted at higher temperature or longer time. Much more research work was performed on the changes of mineral composition on different layer of the pellet. The results shows the oxidization process demonstrating different intensity on different layer, which means that the outer layer exhibiting stronger oxidization intensity, while mediate and inner layer get weaker oxidization intensity. So the outer layer get crusted layer easily at higher preheating and roasting temperature or longer time, which would prevent the oxidization process for inner and median layer pellet and the compression strength of preheated and finished pellets get decreased. The whole experiments show that it is not conducive to the increase of compression strength for preheated and finished pellets with higher preheating and roasting temperature or longer time.
|
|
Received: 09 April 2013
Published: 13 December 2013
|
|
|
|
| [2] |
吕庆,亢立明,孙丽芬等．冀东磁铁矿球团的氧化机理[J].钢铁研究学报,2007,19（8）:7-10
|
| [1] |
郑红霞,汪琦,潘喜峰．磁铁矿球团氧化机理的研究[J].烧结球团,2003,28（5）:13-15
|
| [3] |
许满兴．论新世纪球团矿的质量进步[I]．烧结球团，2000，25(6)：1-3．
|
| [2] |
吕庆,亢立明,孙丽芬等．冀东磁铁矿球团的氧化机理[J].钢铁研究学报,2007,19（8）:7-10
|
| [3] |
许满兴．论新世纪球团矿的质量进步[I]．烧结球团，2000，25(6)：1-3．
|
| [4] |
傅菊英,朱德庆.铁矿氧化球团基本原理、工艺及设备[M].长沙：中南大学出版社，2005：63
|
| [4] |
傅菊英,朱德庆.铁矿氧化球团基本原理、工艺及设备[M].长沙：中南大学出版社，2005：63
|
| [5] |
肖琪.团矿理论与实践 [M].长沙：中南工业大学出版社，1991：102-107
|
| [5] |
肖琪.团矿理论与实践 [M].长沙：中南工业大学出版社，1991：102-107
|
| [1] |
SUN Li-gen, LEI Ming, ZHANG Xin, LIU Yun-song, ZHU Li-guang. In-situ research on microstructure refining effect of Mg treatment for shipbuilding steel at high temperature[J]. Iron and Steel, 2020, 55(5): 94-102. |
| [2] |
ZHOU Cong-rui， CHEN Xiao-long， ZHOU Ming-ke，FAN Lei， MEI Peng， BAO Si-qian. Cause analysis of surface blackening of SPHC hot rolled strip after pickling[J]. PHYSICS EXAMINATION AND TESTING, 2020, 38(3): 41-. |
| [3] |
zhong-peng. Analysis of the formation mechanism of surface skin on tinplate[J]. , 2020, 45(3): 0-0. |
| [4] |
ZHU Tan-hua, ZHOU Qiu-yue, REN Ying, DUAN Hao-jian, ZHANG Li-feng. Inclusion evolution in IF steel during tundish reoxidation[J]. Iron and Steel, 2020, 55(3): 35-39. |
| [5] |
ZHU Li-guang, ZHENG Shi-wei, ZHANG Qing-jun, CAO Sheng-li. Influence of oxide metallurgy and pulsed magnetic field parameters on steel microstructure[J]. Iron and Steel, 2020, 55(3): 74-79. |
| [6] |
WEI Ru-fei1,ZHOU Di1,XU Chun-bao1,2,LONG Hong-ming1,XU Kun3,LI Jia-xin1. Reduction characteristics of iron oxide by different biomass[J]. JOURNAL OF IRON AND STEEL RESEARCH , 2020, 32(3): 186-194. |
|
|
|
|
2013, Vol. 48 
