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Application of a bench-scale Stairmand cyclone separator as a convective dryer of iron ore pellet feed.

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Title: Application of a bench-scale Stairmand cyclone separator as a convective dryer of iron ore pellet feed.
Authors: Genaro, Luana Boger1 (AUTHOR) luana.genaro@outlook.com, Souza Pinto, Thiago C.2 (AUTHOR), Sarkis, Alfredo M.2 (AUTHOR), de Pádua, Thiago Faggionde1 (AUTHOR), Freire, José Teixeira1 (AUTHOR), Béttega, Rodrigo1 (AUTHOR)
Source: Drying Technology. 2025, Vol. 43 Issue 6, p1006-1025. 20p.
Subjects: Iron ores, Machine separators, Energy consumption, Cyclones, High temperatures
Abstract: Evaluation was made of the performance of a Stairmand-type bench cyclone as a convective dryer for iron ore pellet feed. Tests were conducted at moisture contents of 0.02, 0.06, and 0.10 kgwater·kgwet solid−1, with drying temperatures of 70 °C, 80 °C, and 90 °C, and air velocities ranging from 10 to 30 m·s−1. Specific energy consumption decreased with air velocity up to a minimum, then increased at higher velocities and temperatures. The cyclone achieved over 69.9 ± 0.9% moisture reduction, showing high potential for drying iron ore. Unlike conventional drying, where higher air velocity enhances drying, it was observed that at higher moisture content and solid mass flow rate, increased air velocity raised underflow moisture content due to higher solids entrainment and reduced particle residence time. These findings highlight the promising potential of the Stairmand cyclone as a dryer for fine iron ore particles. [ABSTRACT FROM AUTHOR]
Copyright of Drying Technology is the property of Taylor & Francis Ltd and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
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Header DbId: egs
DbLabel: Engineering Source
An: 184711367
AccessLevel: 6
PubType: Academic Journal
PubTypeId: academicJournal
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  Data: Application of a bench-scale Stairmand cyclone separator as a convective dryer of iron ore pellet feed.
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  Data: <searchLink fieldCode="AR" term="%22Genaro%2C+Luana+Boger%22">Genaro, Luana Boger</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> luana.genaro@outlook.com</i><br /><searchLink fieldCode="AR" term="%22Souza+Pinto%2C+Thiago+C%2E%22">Souza Pinto, Thiago C.</searchLink><relatesTo>2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Sarkis%2C+Alfredo+M%2E%22">Sarkis, Alfredo M.</searchLink><relatesTo>2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22de+Pádua%2C+Thiago+Faggionde%22">de Pádua, Thiago Faggionde</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Freire%2C+José+Teixeira%22">Freire, José Teixeira</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Béttega%2C+Rodrigo%22">Béttega, Rodrigo</searchLink><relatesTo>1</relatesTo> (AUTHOR)
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  Data: <searchLink fieldCode="JN" term="%22Drying+Technology%22">Drying Technology</searchLink>. 2025, Vol. 43 Issue 6, p1006-1025. 20p.
– Name: Subject
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  Data: <searchLink fieldCode="DE" term="%22Iron+ores%22">Iron ores</searchLink><br /><searchLink fieldCode="DE" term="%22Machine+separators%22">Machine separators</searchLink><br /><searchLink fieldCode="DE" term="%22Energy+consumption%22">Energy consumption</searchLink><br /><searchLink fieldCode="DE" term="%22Cyclones%22">Cyclones</searchLink><br /><searchLink fieldCode="DE" term="%22High+temperatures%22">High temperatures</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: Evaluation was made of the performance of a Stairmand-type bench cyclone as a convective dryer for iron ore pellet feed. Tests were conducted at moisture contents of 0.02, 0.06, and 0.10 kgwater·kgwet solid−1, with drying temperatures of 70 °C, 80 °C, and 90 °C, and air velocities ranging from 10 to 30 m·s−1. Specific energy consumption decreased with air velocity up to a minimum, then increased at higher velocities and temperatures. The cyclone achieved over 69.9 ± 0.9% moisture reduction, showing high potential for drying iron ore. Unlike conventional drying, where higher air velocity enhances drying, it was observed that at higher moisture content and solid mass flow rate, increased air velocity raised underflow moisture content due to higher solids entrainment and reduced particle residence time. These findings highlight the promising potential of the Stairmand cyclone as a dryer for fine iron ore particles. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of Drying Technology is the property of Taylor & Francis Ltd and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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      – Type: doi
        Value: 10.1080/07373937.2025.2479874
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      – Code: eng
        Text: English
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        PageCount: 20
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        Type: general
      – SubjectFull: Machine separators
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      – SubjectFull: Energy consumption
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      – SubjectFull: Cyclones
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      – SubjectFull: High temperatures
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            NameFull: Souza Pinto, Thiago C.
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            NameFull: Freire, José Teixeira
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            – D: 01
              M: 05
              Text: 2025
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              Y: 2025
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