Electrostatic separation apparatus and method using box-shaped electrodes
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United States of America Patent
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Dec 11, 2001
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N/A
app pub date -
Jun 23, 2000
filing date -
Jun 23, 2000
priority date (Note) -
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Abstract
This invention relates to an apparatus and method for electrostatically separating particles having different electrostatic properties. The apparatus involves two thin box-shaped electrodes facing each other as mirror-images and charged with a voltage field causing the opposing electrodes to assume opposite charges, and then passing a mixture of particles through the field so as to make the particles travel toward the respective electrodes through a perforated plate or screen and to a solid back plate and then to fall by gravity through a splitter adjusted to separate particles attracted by one charge from particles attracted by another charge. A vibrator is attached to each electrode, which is isolated for movement by spaced vibration isolators to shake off any particles stuck to the electrodes.
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