Title:
FILTER DEVICE, PLEAT FILTER, AND BALLAST WATER TREATMENT METHOD
Document Type and Number:
Japanese Patent JP2016209781
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a filter device which prevents breakage and deterioration caused by use and can be used stably for a long period of time, and provide a ballast water treatment method using the same.SOLUTION: A filter device includes: a cylindrical pleat filter 101 in which a filter base material has folds which repeats mountain parts and valley parts, and the mountain parts of the folds are positioned on an outer side in a radial direction; a nozzle 102 which flows treated water out to an outer circumference surface of the pleat filter 101; a case 103 which is arranged so as to surround the pleat filter 101 and has an outer cylinder part; a filtration water flow channel which leads out filtration water permeating the pleat filter 101 to an external of the case 103; and a discharge flow channel which discharges discharged water which is not filtered by the pleat filter 101 to the external of the case 103. The pleat filter 101 is structured so as to rotate around an axis, and ridge lines of the plurality of mountain parts of the pleat filter 101 are curved in a shape which bulges in a direction opposite to the rotation direction.SELECTED DRAWING: Figure 3
Inventors:
KANAZAWA SHINICHI
YAHAGI SATOSHI
YAHAGI SATOSHI
Application Number:
JP2015092497A
Publication Date:
December 15, 2016
Filing Date:
April 30, 2015
Export Citation:
Assignee:
SUMITOMO ELECTRIC INDUSTRIES
International Classes:
B01D33/06; B01D39/16; B63B13/00
Attorney, Agent or Firm:
Hideaki Nishima
Takeshi Morita
Kosoegawa Misako
Yu Okutani
Seiji Ogino
Hideaki Ito
Takeshi Morita
Kosoegawa Misako
Yu Okutani
Seiji Ogino
Hideaki Ito
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