PROBLEM TO BE SOLVED: To provide a ballast water treatment device comprising a cylindrical filter for filtering ballast water flowing thereinto, and flowing the ballast water to outside, capable of improving cleanliness of back washing water with high maintenance ability.SOLUTION: A ballast water treatment device comprises: a cylindrical filter 52 for filtering ballast water W1 flowing thereinto, and flowing the ballast water to outside; a ballast tank 62 for storing ballast water W2 which is filtrated through the filter 52; a back washing water injection nozzle 6 disposed on a secondary side of the filter 52, for injecting back washing water W2 to the filter 52; a back washing water circulation line L21 in which the back washing water W2 is circulated to the back washing water injection nozzle 6; and a reproduction type filtration tool 70 disposed on the back washing water circulation line L21, and filtering the back washing water W2 circulating in the back washing water circulation line L21.SELECTED DRAWING: Figure 1

    【課題】内部に流入したバラスト水を濾過して外部へ流出させる筒状のフィルタを備えるバラスト水処理装置において、高いメンテナンス性で逆洗水の清浄性を向上できるバラスト水処理装置を提供する。【解決手段】内部に流入したバラスト水W1を濾過して外部へ流出させる筒状のフィルタ52と、フィルタ52により濾過されたバラスト水W2を貯留するバラストタンク62と、フィルタ52の二次側に設けられ、フィルタ52に向かって逆洗水W2を噴射する逆洗水噴射ノズル6と、逆洗水噴射ノズル6に向けて逆洗水W2が流通する逆洗水流通ラインL21と、逆洗水流通ラインL21に設けられ、逆洗水流通ラインL21を流通する逆洗水W2を濾過する再生型濾過器70と、を備える。【選択図】図1


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    Title :

    BALLAST WATER TREATMENT DEVICE


    Additional title:

    バラスト水処理装置


    Contributors:

    Publication date :

    2016-08-25


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    B01D SEPARATION , Trennen / B63B Schiffe oder sonstige Wasserfahrzeuge , SHIPS OR OTHER WATERBORNE VESSELS



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