Patent ID: 9511310
Filing Date: 2016-12-06
CPC Classification: B01D,B63J,C02F,Y02T

Claim Text:
1. A device of treating ballast water for a ship, comprising: a filter disposed as a cylinder around an axis line and having a length in the direction of said axis line, the filter being rotatable around said axis line; a treated water nozzle for emitting treated water toward an outer circumferential surface of said filter, the treated water nozzle including a nozzle opening, wherein the nozzle opening of said treated water nozzle has one long opening with a long side length in the direction of said axis line and the long side length of said one long opening is substantially equal to or longer than the length of the filter in the direction of said axis line; a case provided to surround said filter, and including an outer cylindrical portion having the nozzle opening of said treated water nozzle therein; a filtered water flow path for guiding filtered water that has been transmitted through said filter to outside of said case from within the cylinder of said filter; and a discharge flow path for discharging discharged water that was not filtered through said filter to the outside of said case.