Electrostatic separation device, and associated separation method and use
AssigneeSkytech
InventorPierre Frédéric Claude Sommen
Life of this patent
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Abstract
An electrostatic separation device (is for a mixture of granules of different materials. The device includes a separation chamber having an inlet and delimiting an inner volume and a collection device for granules placed in the inner volume, opposite the inlet. At least two pairs of electrodes are successively placed in the elevation direction in the inner volume, between the inlet and the collection device. Each pair includes an anode and a cathode, placed on either side of a central axis extending in the elevation direction. At least one generating system is suitable for applying a difference in electric potential between the anode and the cathode of each pair.
Claims14
An electrostatic separation device for a mixture of granules of different materials, the device comprising:
- a separation chamber having an inlet and delimiting an inner volume,
- a collection device for granules placed in the inner volume, opposite the inlet in an elevation direction,
- at least two pairs of electrodes successively placed in the elevation direction in the inner volume, between the inlet and the collection device, each pair comprising an anode and a cathode, placed on either side of a central axis extending in the elevation direction,
- at least one generating system, suitable for applying a difference in electric potential between the anode and the cathode of each pair, and
- at least one insulating panel placed between at least one among the anodes and the cathodes of two successive pairs of electrodes.
An electrostatic separation device for a mixture of granules of different materials, the device comprising:
- a separation chamber having an inlet and delimiting an inner volume,
- a collection device for granules placed in the inner volume, opposite the inlet in an elevation direction,
- at least two pairs of electrodes successively placed in the elevation direction in the inner volume, between the inlet and the collection device, each pair comprising an anode and a cathode, placed on either side of a central axis extending in the elevation direction,
- at least one generating system, suitable for applying a difference in electric potential between the anode and the cathode of each pair, and
- insulating panels placed between the anodes and the cathodes of each pair of successive electrodes.
A method for electrostatic separation of a mixture of granules of different materials, the method implementing an electrostatic separation device, the device comprising:
- a separation chamber having an inlet and delimiting an inner volume,
- a collection device for granules placed in the inner volume, opposite the inlet in an elevation direction,
- at least two pairs of electrodes successively placed in the elevation direction in the inner volume, between the inlet and the collection device, each pair comprising an anode and a cathode, placed on either side of a central axis extending in the elevation direction,
- at least one generating system, suitable for applying a difference in electric potential between the anode and the cathode of each pair of electrodes and
- at least one insulating panel placed between at least one among the anodes and the cathodes of two successive pairs of electrodes,
- the method comprising the following steps:
- introducing the mixture of granules through the inlet of the chamber,
- generating a difference in electric potential between the anode and the cathode of each pair of electrodes,
- separating at least part of the granules, and
- collecting separated granules in the collection device.
Dependencies are inferred from the claim text.