The present invention relates to a device for filtering ballast water which performs filtering by installing a filter element having a conical shape in a concentric circle direction inside the device for filtering ballast water that accommodates a filter portion, and introducing ballast water from a lower end of the device for filtering and passing same through the filter element inside the device for filtering, and for discharging backwash water containing foreign substances that are inside a filter by means of differential pressure, which is created by a driving portion communicating with a filter element by rotating an aspiration portion that is located on the lower end of the device for filtering. In particular, the present invention relates to a candle-type device for filtering ballast water, wherein the driving portion is positioned on a lower portion of the housing so that more filter elements can be accommodated inside the housing, thereby increasing filter efficiency so as to be appropriate for treating ballast water, and a back pressure prevention tank is provided on a backwash water discharge line thereby preventing back pressure on the discharge line.
CANDLE-TYPE FILTERING DEVICE FOR PREVENTING BACK PRESSURE
KERZENFÖRMIGE FILTERUNGSVORRICHTUNG ZUR VERHINDERUNG EINES GEGENDRUCKS
DISPOSITIF DE FILTRATION DE TYPE BOUGIE DESTINÉ À PRÉVENIR UNE CONTRE-PRESSION
2019-12-04
Patent
Elektronische Ressource
Englisch
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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