Some techniques on electrostatic separation of particle size utilizing electrostatic traveling-wave field

    研究成果: Article

    43 引用 (Scopus)

    抄録

    The author has developed five kinds of techniques on electrostatic separation of particle size utilizing the balance of the electrostatic and gravitational force. The first is an inclined plate conveyer system. A plate conveyer consisted of parallel electrodes was constructed and four-phase electrostatic traveling wave was applied to the electrodes to transport particles on the conveyer. Particles were separated with size under the voltage application of appropriate frequency based on the feature that small particles were transported upward against the gravity but large particles were apt to fall down. The second technique is an inclined tube system. The principle is common with that of the inclined plate system. The third technique utilizes a circular electrostatic conveyer similar with the mass spectroscopy but utilizes the feature that small particles fly high altitude compared to that of the large particle. The forth technique, a vortex system, also utilizes the difference of flying locus of small and large particles. The last technique is the combination of the linear conveyer and an electrostatic separation roller located at the end of the conveyer. Small particles were attached onto the roller charged by a charger roller. Although the yield was reduced to realize the high separation performance with the former four techniques, relatively high yield was realized without reducing the separation performance with the roller system. This technique is expected to be utilized to the separation of toner and carrier particles used in electrophotography.

    元の言語English
    ページ(範囲)220-228
    ページ数9
    ジャーナルJournal of Electrostatics
    66
    発行部数3-4
    DOI
    出版物ステータスPublished - 2008 3

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    Static Electricity
    Particle Size
    traveling waves
    Electrostatics
    Particle size
    electrostatics
    rollers
    Electrodes
    Gravitation
    Mass Spectrometry
    Vortex flow
    Spectroscopy
    electrodes
    Electric potential
    high altitude
    loci
    mass spectroscopy
    flight
    vortices
    gravitation

    ASJC Scopus subject areas

    • Electrical and Electronic Engineering
    • Materials Chemistry
    • Materials Science(all)
    • Physics and Astronomy(all)
    • Surfaces and Interfaces

    これを引用

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    AB - The author has developed five kinds of techniques on electrostatic separation of particle size utilizing the balance of the electrostatic and gravitational force. The first is an inclined plate conveyer system. A plate conveyer consisted of parallel electrodes was constructed and four-phase electrostatic traveling wave was applied to the electrodes to transport particles on the conveyer. Particles were separated with size under the voltage application of appropriate frequency based on the feature that small particles were transported upward against the gravity but large particles were apt to fall down. The second technique is an inclined tube system. The principle is common with that of the inclined plate system. The third technique utilizes a circular electrostatic conveyer similar with the mass spectroscopy but utilizes the feature that small particles fly high altitude compared to that of the large particle. The forth technique, a vortex system, also utilizes the difference of flying locus of small and large particles. The last technique is the combination of the linear conveyer and an electrostatic separation roller located at the end of the conveyer. Small particles were attached onto the roller charged by a charger roller. Although the yield was reduced to realize the high separation performance with the former four techniques, relatively high yield was realized without reducing the separation performance with the roller system. This technique is expected to be utilized to the separation of toner and carrier particles used in electrophotography.

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    KW - Electrophotography

    KW - Electrostatic force

    KW - Toner

    KW - Traveling wave

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