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HPGR effect on the particle size and shape of iron ore pellet feed using response surface methodology

Abazarpoor, A ; Sharif University of Technology | 2018

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  1. Type of Document: Article
  2. DOI: 10.1080/03719553.2017.1284414
  3. Publisher: Taylor and Francis Ltd , 2018
  4. Abstract:
  5. In this study the effect of HPGR operational parameters on the dimensional properties of pellet feed was examined and optimized using factorial methodology. The operational parameters considered include feed moisture, specific pressure and roll speed. For this study, size and shape of particles with Blaine number in the range 1800–2200 cm2g−1 was thoroughly investigated. It was deduced that increasing the specific pressure and decreasing the roll speed would result in reduction of D80 but would increase the Blaine number. The circularity, aspect ratio and roughness descriptors of the particles were measured by SEM micrographs and image analysis software. It was observed that particles tended to be angular, with elongated shape due to the inter-particle and compression breakage mechanism in the HPGR. © 2017, © 2017 Institute of Materials, Minerals and Mining and The AusIMM Published by Taylor & Francis on behalf of the Institute and The AusIMM
  6. Keywords:
  7. HPGR ; Pellet feed ; Aspect ratio ; Image analysis ; Iron ores ; Particle size ; Pelletizing ; Rolls (machine components) ; Dimensional properties ; Factorial design ; Image analysis software ; Operational parameters ; Particle shape ; Particle size and shape ; Response surface methodology ; Particle size analysis
  8. Source: Mineral Processing and Extractive Metallurgy: Transactions of the Institute of Mining and Metallurgy ; Volume 127, Issue 1 , 2018 , Pages 40-48 ; 25726641 (ISSN)
  9. URL: https://www.tandfonline.com/doi/abs/10.1080/03719553.2017.1284414?journalCode=ympm21