The present invention relates to a device for filtering for treating ballast water by means of a filtering method, and more particularly, to a multicage-type device for filtering ballast water to prevent back pressure, wherein the multicage-type device for filtering ballast water comprises a back pressure prevention tank on a backwash line for backwashing and discharging foreign substances that are inside a filter of the device for filtering, so that backwash water and the foreign substances in the backwash line are preliminarily stored in the back pressure prevention tank thereby preventing increase of back pressure, prevents increase of the back pressure on the backwash line by always maintaining level of water inside the back pressure prevention tank at lower than an inlet port that is connected to the backwash line, and always maintains the level of water at lower than a specific level by artificially discharging the backwash water that is stored inside the tank by means of a pump, when the level of water measured by a water level measuring sensor that measures the level of water inside the tank is over or equal to a specific height.


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    Title :

    MULTICAGE-TYPE DEVICE FOR FILTERING BALLAST WATER FOR PREVENTING BACK PRESSURE


    Additional title:

    MEHRFACHKÄFIG-VORRICHTUNG ZUM FILTERN VON BALLASTWASSER ZUR VERHINDERUNG EINES GEGENDRUCKS
    DISPOSITIF DE TYPE MULTICAGES POUR LA FILTRATION D'UNE EAU DE BALLASTAGE, DESTINÉ À PRÉVENIR UNE CONTRE-PRESSION


    Contributors:
    LEE SOO-TAE (author) / PYO TAE-SUNG (author) / LEE SU-KYU (author)

    Publication date :

    2019-12-04


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    B01D SEPARATION , Trennen / B63B Schiffe oder sonstige Wasserfahrzeuge , SHIPS OR OTHER WATERBORNE VESSELS / B63J Hilfsanlagen auf Schiffen , AUXILIARIES ON VESSELS / C02F Behandlung von Wasser, Schmutzwasser, Abwasser oder von Abwasserschlamm , TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE



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    LEE SOO TAE / PYO TAE SUNG / LEE SU KYU | European Patent Office | 2016

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    CANDLE-TYPE FILTERING DEVICE FOR PREVENTING BACK PRESSURE

    LEE SOO-TAE / PYO TAE-SUNG / LEE SU-KYU | European Patent Office | 2019

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    Candle-type filtering device for preventing back pressure

    LEE SOO-TAE / PYO TAE-SUNG / LEE SU-KYU | European Patent Office | 2017

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