Patterns of granular convection and separation in narrow vibration bed

Granular convection/separation of single and binary component particles are studied in a narrow vibration bed, respectively. With filling the single light particles (molecular sieve beads), the bed exhibits five different states successively by increasing the vibration frequency f from 15Hz to 70 Hz...

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Main Authors: Liu Chuanping, Wu Ping, Wang Li, Tong Lige, Yin Shaowu
Format: Article
Language:English
Published: EDP Sciences 2017-01-01
Series:EPJ Web of Conferences
Online Access:https://doi.org/10.1051/epjconf/201714003031
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author Liu Chuanping
Wu Ping
Wang Li
Tong Lige
Yin Shaowu
author_facet Liu Chuanping
Wu Ping
Wang Li
Tong Lige
Yin Shaowu
author_sort Liu Chuanping
collection DOAJ
description Granular convection/separation of single and binary component particles are studied in a narrow vibration bed, respectively. With filling the single light particles (molecular sieve beads), the bed exhibits five different states successively by increasing the vibration frequency f from 15Hz to 70 Hz (vibration strength Γ>3), as the global convection, symmetrical heap, unsymmetrical heap, local convection and pseudo solid. Comparatively, the granular bed of the single heavy particles (steel beads) is only in pseudo solid state at the above vibration condition. By filling binary component particles (molecular sieve and same size steel beads) instead of the single component, the bed shows similar convection state with that of the single molecular sieve beads, and the heavy steel beads are aggregated in the centre of convention roll as a core. Varying the initial distribution of binary component particles, the final convection and separation are not influenced, although the aggregation process of steel beads changes.
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spelling doaj.art-8f67e52262b0471e93a3d00ab1221c112022-12-21T18:38:46ZengEDP SciencesEPJ Web of Conferences2100-014X2017-01-011400303110.1051/epjconf/201714003031epjconf162113Patterns of granular convection and separation in narrow vibration bedLiu Chuanping0Wu Ping1Wang Li2Tong Lige3Yin Shaowu4School of Energy and Environment Engineering, University of Science and Technology BeijingSchool of Mathematics and Physics, University of Science and Technology BeijingSchool of Energy and Environment Engineering, University of Science and Technology BeijingSchool of Mathematics and Physics, University of Science and Technology BeijingSchool of Energy and Environment Engineering, University of Science and Technology BeijingGranular convection/separation of single and binary component particles are studied in a narrow vibration bed, respectively. With filling the single light particles (molecular sieve beads), the bed exhibits five different states successively by increasing the vibration frequency f from 15Hz to 70 Hz (vibration strength Γ>3), as the global convection, symmetrical heap, unsymmetrical heap, local convection and pseudo solid. Comparatively, the granular bed of the single heavy particles (steel beads) is only in pseudo solid state at the above vibration condition. By filling binary component particles (molecular sieve and same size steel beads) instead of the single component, the bed shows similar convection state with that of the single molecular sieve beads, and the heavy steel beads are aggregated in the centre of convention roll as a core. Varying the initial distribution of binary component particles, the final convection and separation are not influenced, although the aggregation process of steel beads changes.https://doi.org/10.1051/epjconf/201714003031
spellingShingle Liu Chuanping
Wu Ping
Wang Li
Tong Lige
Yin Shaowu
Patterns of granular convection and separation in narrow vibration bed
EPJ Web of Conferences
title Patterns of granular convection and separation in narrow vibration bed
title_full Patterns of granular convection and separation in narrow vibration bed
title_fullStr Patterns of granular convection and separation in narrow vibration bed
title_full_unstemmed Patterns of granular convection and separation in narrow vibration bed
title_short Patterns of granular convection and separation in narrow vibration bed
title_sort patterns of granular convection and separation in narrow vibration bed
url https://doi.org/10.1051/epjconf/201714003031
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