|
|
|
| Influence of milling on property and ballability of iron concentrate |
| CAI Hao- yu1，QING Ge- le1,2，ZHANG Wei- dong1，LIU Hong- song1,TIAN Yun- qing1，MA Li1 |
（1. Shougang Research Institute of Technology，Shougang Group Corporation，Beijing 100043，China
2. School of Metallurgical and Ecological Engineering，University of Science and Technology Beijing，Beijing 100083，China） |
|
|
|
|
Abstract In order to research the influence of milling on property and ballability of iron concentrate，some kinds of iron concentrate were milled by ball mill in different degrees. And 11 kinds of samples were made by mixing the milled iron concentrate with different ratios. Then，some physical property tests and pelletizing on the samples were carried out. The result indicated that，as the time of milling increases，the appearance of particles after milled remained unchanged，the content of fine particle，the specific surface area and the content of capillary water all increased，but the content of molecular water did not change significantly. The specific surface area was mainly influenced by the content of fine particles (<10 μm).However，the strength of green pellets was mainly influenced by the specific surface area and particle size distribution. The content of >76. 33 μm fraction and <10 μm fraction should be controlled between 10%- 15% to make sure the pelletizing property and strength of green balls were better，when the specific surface area of iron concentrate lies between 1 500- 2 500 cm2/g.
|
|
Received: 22 September 2014
Published: 18 August 2015
|
|
|
|
| [1] |
傅菊英，姜涛，等. 烧结球团学[M].长沙:中南工业大学出版社，1996.
|
| [1] |
傅菊英，姜涛，等. 烧结球团学[M].长沙:中南工业大学出版社，1996.
|
| [2] |
王昌安,罗廉明. 铁精矿粒度组成对球团质量的影响[J]. 武汉化工学院学报,2005,27(2):38-40
|
| [2] |
王昌安,罗廉明. 铁精矿粒度组成对球团质量的影响[J]. 武汉化工学院学报,2005,27(2):38-40
|
| [3] |
彭志伟，李光辉，等. 改善铁精矿成球性能的研究[J]. 钢铁,2008,43(12):7-12
|
| [3] |
彭志伟，李光辉，等. 改善铁精矿成球性能的研究[J]. 钢铁,2008,43(12):7-12
|
| [4] |
范晓慧，袁晓丽，等. 铁精矿粒度对球团强度的影响[J]. 中国有色金属学报,2006,11(11):1965-1970
|
| [4] |
范晓慧，袁晓丽，等. 铁精矿粒度对球团强度的影响[J]. 中国有色金属学报,2006,11(11):1965-1970
|
| [5] |
王昌安，熊守安，朱德庆. 高压辊磨预处理铁精粉对生球性能的影响[J]. 烧结球团,2002(6): 12-15
|
| [5] |
王昌安，熊守安，朱德庆. 高压辊磨预处理铁精粉对生球性能的影响[J]. 烧结球团,2002(6): 12-15
|
| [6] |
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，2005.4
|
| [6] |
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，2005.4
|
| [7] |
侯通. 铁精矿成球性能的基础研究[D]. 长沙:中南大学,2010
|
| [7] |
侯通. 铁精矿成球性能的基础研究[D]. 长沙:中南大学,2010
|
| [1] |
CHENG Xiang-kui, ZHAO Ying-tao, ZHAO Xu, WANG Jun, HUANG Xiao-li, PU Chun-lei. Preparation of V-Ti magnetite ore basic pellet containing NaOH[J]. Iron and Steel, 2020, 55(6): 33-37. |
| [2] |
WANG Xin, PAN Jian, ZHU De-qing, GUO Zheng-qi, TIAN Hong-yü. Process of pelletization of nickel laterite and chromite[J]. Iron and Steel, 2020, 55(3): 23-28. |
| [3] |
WANG Xiao-lei1,SHI Xue-feng1,HU Chang-qing1,WANG Xin-dong2,HU Qi-chen2. Experimental study on spherication and cold performance of highsilica magnesium flux pellets[J]. JOURNAL OF IRON AND STEEL RESEARCH , 2020, 32(3): 212-219. |
| [4] |
ZHANG Lin-lin， FU Gang-hua， GUO Yu-feng， CHEN Feng， ZHENG Fu-qiang . Effect of basicity on quality of green fluxed pellets[J]. Iron and Steel, 2019, 54(5): 14-18. |
| [5] |
ZHANG Xue-song1，2， XU Meng1，2， WU Jian-long1，2， WANG Wei1，2. Sulfur analysis and measures for reducing sulfur in ironmaking process of Shougang Jingtang[J]. Iron and Steel, 2019, 54(3): 18-22. |
| [6] |
WANG Xin-dong, LI Jian-xin, HU Qi-chen. Application practice of source and process sulfur-nitrate reduction technology based on optimization of blast furnace charge structure[J]. Iron and Steel, 2019, 54(12): 104-110. |
|
|
|
|
2015, Vol. 50 
