Characterization of the mineral phases of the iron ore pellet via 3D reconstruction using serial sectioning

被引:3
作者
Wei, Wang [1 ,2 ]
Zheng, Heng [1 ,2 ]
Xu, Runsheng [1 ,2 ]
Wu, Fenglou [1 ,2 ]
Chen, Weilin [3 ]
Jia, Bin [3 ]
Xue, Zhengliang [1 ,2 ]
机构
[1] Wuhan Univ Sci & Technol, State Key Lab Refractories & Met, Wuhan 430081, Hubei, Peoples R China
[2] Wuhan Univ Sci & Technol, Key Lab Ferrous Met & Resources Utilizat, Minist Educ, Wuhan 430081, Hubei, Peoples R China
[3] Wuhan Iron & Steel Co LTD, Ironmaking Plant, Wuhan 430083, Hubei, Peoples R China
基金
中国博士后科学基金; 中国国家自然科学基金;
关键词
iron ore pellet; mineral; microstructure; three-dimensional analysis; compressive strength; SLICER;
D O I
10.1051/metal/2018056
中图分类号
TF [冶金工业];
学科分类号
0806 ;
摘要
A new analysis method based on serial sectioning and three-dimensional (3D) reconstruction was developed for the quantification of minerals in an iron ore pellet. The morphology and spatial distribution of the minerals in 3D space were analysed via 3D reconstructed images of an iron ore pellet. The volume fraction of the minerals in the 3D image was also calculated based on the pixel points. The results showed that the morphology and spatial distributions of hematite, magnetite and silicate varied among different pellets as well as among different positions within the same pellet. Thick plate and interconnected hematite was observed in the outer area of the pellets, whereas the inner area of the pellets mainly contained small granular and independent hematite. The hematite grains in pellet 1 were small, whereas those in pellet 2 were relatively dense. Some of the magnetite in pellet 1 was in the form of dense blocks, whereas fewer blocks were found in pellet 2, where magnetite occurred mainly in chain form scattered within the large particles of hematite. The silicate in pellet 2 was dense, granular and smaller than that in pellet 1. The quantitative analysis results for the two kinds of pellets showed that pellet 2 contained more hematite. Moreover, pellet 2 contained less unoxidized magnetite than pellet 1. These results indicate that the main bonding phase in pellet 1 was magnetite, whereas the main binding phase in pellet 2 was hematite. The greater compressive strength of pellet 2 was strongly related to higher amount of hematite interconnections.
引用
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页数:13
相关论文
共 31 条
  • [1] [Anonymous], 1983, ISO47001983
  • [2] Augusto KS, 2015, 14 INT C STER IM AN
  • [3] Consideration of X-ray microtomography to quantitatively determine the size distribution of bubble cavities in iron ore pellets
    Bhuiyan, I. U.
    Mouzon, J.
    Forsberg, F.
    Forsmo, S. P. E.
    Sjodahl, M.
    Hedlund, J.
    [J]. POWDER TECHNOLOGY, 2013, 233 : 312 - 318
  • [4] Three-dimensional visualization and micro structure-based modeling of deformation in particle-reinforced composites
    Chawla, N
    Sidhu, RS
    Ganesh, VV
    [J]. ACTA MATERIALIA, 2006, 54 (06) : 1541 - 1548
  • [5] Chen Yao-ming, 2007, Journal of Central South University (Science and Technology), V38, P70
  • [6] Chen YM., 2005, RES IRON STEEL, V33, P10
  • [7] Deng M., 2017, IRON STEEL VANADIUM, V38, P104
  • [8] GBM Volumetry using the 3D Slicer Medical Image Computing Platform
    Egger, Jan
    Kapur, Tina
    Fedorov, Andriy
    Pieper, Steve
    Miller, James V.
    Veeraraghavan, Harini
    Freisleben, Bernd
    Golby, Alexandra J.
    Nimsky, Christopher
    Kikinis, Ron
    [J]. SCIENTIFIC REPORTS, 2013, 3
  • [9] 3D Slicer as an image computing platform for the Quantitative Imaging Network
    Fedorov, Andriy
    Beichel, Reinhard
    Kalpathy-Cramer, Jayashree
    Finet, Julien
    Fillion-Robin, Jean-Christophe
    Pujol, Sonia
    Bauer, Christian
    Jennings, Dominique
    Fennessy, Fiona
    Sonka, Milan
    Buatti, John
    Aylward, Stephen
    Miller, James V.
    Pieper, Steve
    Kikinis, Ron
    [J]. MAGNETIC RESONANCE IMAGING, 2012, 30 (09) : 1323 - 1341
  • [10] Numerical Analysis of 3-D Microstructure of Coke Using Micro X-ray CT
    Hiraki, Kenichi
    Yamazaki, Yoshiaki
    Kanai, Tetsuya
    Uchida, Ataru
    Saito, Yasuhiro
    Matsushita, Yohsuke
    Aoki, Hideyuki
    Miura, Takatoshi
    Nomura, Seiji
    Hayashizaki, Hideyuki
    [J]. ISIJ INTERNATIONAL, 2012, 52 (11) : 1966 - 1972