Flow of Non-Homogeneous Particulates in Rotating Drums

Numerous industries deal with particulate systems such as the cement, ceramics, chemical, metallurgical and pharmaceutical industries. Usually the particulate systems handled in these industries are non-homogeneous, that is, their constituents...

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Main Authors: Abdel-Zaher M. Abouzeid, Douglas W. Fuerstenau
Format: Article
Language:English
Published: Hosokawa Powder Technology Foundation 2014-03-01
Series:KONA Powder and Particle Journal
Subjects:
Online Access:https://www.jstage.jst.go.jp/article/kona/28/0/28_2010014/_pdf/-char/en
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author Abdel-Zaher M. Abouzeid
Douglas W. Fuerstenau
author_facet Abdel-Zaher M. Abouzeid
Douglas W. Fuerstenau
author_sort Abdel-Zaher M. Abouzeid
collection DOAJ
description Numerous industries deal with particulate systems such as the cement, ceramics, chemical, metallurgical and pharmaceutical industries. Usually the particulate systems handled in these industries are non-homogeneous, that is, their constituents are heterogeneous in their physical properties such as particle size, density, particle shape, and surface roughness. Handling of these systems during transport and/or manufacturing is usually associated with movements of these particulates at transfer points, being shaken, moving through drums, or sliding over inclined planes, which leads to the particulate mass being energized or disturbed. Disturbing such non-homogeneous systems results in mutual separation of the particulate constituents as a result of differences in their physical properties. The mutual separation is a natural phenomenon called segregation. In some instances, segregation is desired, while in most cases it is detrimental. Segregation in particulate systems takes place as a result of several forces, mainly frictional and gravitational forces, acting on the individual particles inside the system while it is energized. It is well known that the contributions of these forces in controlling the movement of particles are functions of the physical properties of the constituting components of the system. This paper concerns investigation and discussion of the mechanisms of particulate motion and the role of the forces acting during energizing a particulate system, particularly while moving through rotating drums, and their effects on the quality of the final products of non-homogeneous particulate systems.
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spelling doaj.art-702a5cf1a78744b28cb91756a627933d2022-12-21T20:02:13ZengHosokawa Powder Technology FoundationKONA Powder and Particle Journal0288-45342187-55372014-03-0128015516610.14356/kona.2010014konaFlow of Non-Homogeneous Particulates in Rotating DrumsAbdel-Zaher M. Abouzeid0Douglas W. Fuerstenau1Dept. Mining, Faculty of Engineering, Cairo UniversityDept. Materials Science and Engineering, University of CaliforniaNumerous industries deal with particulate systems such as the cement, ceramics, chemical, metallurgical and pharmaceutical industries. Usually the particulate systems handled in these industries are non-homogeneous, that is, their constituents are heterogeneous in their physical properties such as particle size, density, particle shape, and surface roughness. Handling of these systems during transport and/or manufacturing is usually associated with movements of these particulates at transfer points, being shaken, moving through drums, or sliding over inclined planes, which leads to the particulate mass being energized or disturbed. Disturbing such non-homogeneous systems results in mutual separation of the particulate constituents as a result of differences in their physical properties. The mutual separation is a natural phenomenon called segregation. In some instances, segregation is desired, while in most cases it is detrimental. Segregation in particulate systems takes place as a result of several forces, mainly frictional and gravitational forces, acting on the individual particles inside the system while it is energized. It is well known that the contributions of these forces in controlling the movement of particles are functions of the physical properties of the constituting components of the system. This paper concerns investigation and discussion of the mechanisms of particulate motion and the role of the forces acting during energizing a particulate system, particularly while moving through rotating drums, and their effects on the quality of the final products of non-homogeneous particulate systems.https://www.jstage.jst.go.jp/article/kona/28/0/28_2010014/_pdf/-char/ensegregationparticulate systemsflow of non-homogeneous particulatesrotating drumsmixing-demixing of particulatescontinuous flow of powders
spellingShingle Abdel-Zaher M. Abouzeid
Douglas W. Fuerstenau
Flow of Non-Homogeneous Particulates in Rotating Drums
KONA Powder and Particle Journal
segregation
particulate systems
flow of non-homogeneous particulates
rotating drums
mixing-demixing of particulates
continuous flow of powders
title Flow of Non-Homogeneous Particulates in Rotating Drums
title_full Flow of Non-Homogeneous Particulates in Rotating Drums
title_fullStr Flow of Non-Homogeneous Particulates in Rotating Drums
title_full_unstemmed Flow of Non-Homogeneous Particulates in Rotating Drums
title_short Flow of Non-Homogeneous Particulates in Rotating Drums
title_sort flow of non homogeneous particulates in rotating drums
topic segregation
particulate systems
flow of non-homogeneous particulates
rotating drums
mixing-demixing of particulates
continuous flow of powders
url https://www.jstage.jst.go.jp/article/kona/28/0/28_2010014/_pdf/-char/en
work_keys_str_mv AT abdelzahermabouzeid flowofnonhomogeneousparticulatesinrotatingdrums
AT douglaswfuerstenau flowofnonhomogeneousparticulatesinrotatingdrums