|
|
|
| Ferrosilicon alloy granules prepared through centrifugal granulation process |
| Wen-chao He1,2, Xue-wei Lv1,2,3, Zhi-ming Yan1,2, Gang-qiang Fan1,2 |
1 Chongqing Key Laboratory of Vanadium-Titanium Metallurgy and New Materials, Chongqing University, Chongqing 400044, China
2 College of Materials Science and Engineering, Chongqing University, Chongqing 400044, China
3 State Key Laboratory of Mechanical Transmissions, Chongqing University, Chongqing 400044, China |
|
|
|
|
Abstract A novel granulation process that involved the use of a rotary multi-nozzles cup atomizer and water cooling was proposed for ferroalloy manufacturing. The effects of rotating speed and nozzle diameter on the properties of FeSi75 alloy (containing 75 wt.% Si) granules were investigated. Results indicated that median granule diameter decreased as rotating speed increased, and initially increased and then decreased as nozzle diameter increased. The optimal conditions for the granulation of FeSi75 alloy were a rotating speed of 150 r/min and nozzle diameter of 10 or 12 mm. The phase composition, micromorphology, and elemental distribution of the FeSi75 alloy granules were also studied by X-ray diffraction, scanning electron microscopy, and energy-dispersive X-ray spectrometry. In order to provide guidance for the layout and water depth of the tank, the solidification behavior of ferrosilicon alloy droplet was numerically studied. A simplified model was established to elucidate the traveling trajectory and heat transfer of alloy droplet in air and cooling water during the atomization process. The solidification time of droplet with different thicknesses of solidification layer increased with the increase in alloy droplet diameter.
|
|
Received: 04 September 2019
Published: 25 November 2020
|
|
|
|
| Cite this article: |
|
Wen-chao He,Xue-wei Lv,Zhi-ming Yan, et al. Ferrosilicon alloy granules prepared through centrifugal granulation process[J]. Journal of Iron and Steel Research International, 2020, 27(11): 1247-1258.
|
|
|
|
| [1] |
Xiao-ming Li, Hai-bo Yang, Jin-bang Ruan, Yi Li, Zhen-yu Wen, Xiang-dong Xing. Effect of mechanical activation on enhancement of carbothermal reduction of nickel slag[J]. JOURNAL OF IRON AND STEEL RESEARCH,INTERNATIONAL, 2020, 27(11): 1311-1321. |
| [2] |
Long-hu Cao , . Cheng-jun Liu , . Qing Zhao , . Mao-fa Jiang ,. Growth behavior of spinel in stainless steel slag during cooling process[J]. , 2018, 25(11): 1131-1139. |
| [3] |
Feng Chen,Yu-feng Guo*,Tao Jiang,Fu-qiang Zheng,Shuai Wang,Ling-zhi Yang. Effects of high pressure roller grinding on size distribution of vanadium-titanium magnetite concentrate particles and improvement of green pellet strength[J]. Chinese Journal of Iron and Steel, 2017, 24(3): 266-272. |
| [4] |
Cong-cong Yang,,De-qing Zhu,Ben-jing Shi,Jian Pan,Li-ming Lu,Xiao-bo Li,Ya-ping Mo. Comparison of sintering performance of typical specular hematite ores with distinct size distributions[J]. Chinese Journal of Iron and Steel, 2017, 24(10): 1007-1015. |
| [5] |
HU Bin-hao,CAI Qing-wu,WU Hui-bin. Kinetics of Precipitation Behavior of Second Phase Particles in Ferritic Ti-Mo Microalloyed Steel[J]. Chinese Journal of Iron and Steel, 2013, 20(7): 69-77. |
| [6] |
DAI Shuhua;SHEN Fengman;YU Aibing. Granule Size Distribution and Porosity of Granule Packing[J]. Chinese Journal of Iron and Steel, 2008, 15(5): 1-0. |
|
|
|
|
2020, Vol. 27 
