SPHERICAL FILTER

PROBLEM TO BE SOLVED: To provide a spherical filter which has a large treatment capacity with a small installation space and can produce treated water of stable quality. SOLUTION: A filtration tank (2) is made spherical, an inner shell screen (5) and a central shell screen (6) are set in the tank (2...

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Bibliographic Details
Main Authors ISHIGAKI EIICHI, FUJITA KUNIO
Format Patent
LanguageEnglish
Published 15.04.2004
Edition7
Subjects
PERFORMING OPERATIONS
PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
SEPARATION
TRANSPORTING
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Summary:PROBLEM TO BE SOLVED: To provide a spherical filter which has a large treatment capacity with a small installation space and can produce treated water of stable quality. SOLUTION: A filtration tank (2) is made spherical, an inner shell screen (5) and a central shell screen (6) are set in the tank (2), and a filter medium (13) is packed in the space between the screens (5 and 6) to implement filtration, so that the thickness of a filter medium layer is made approximately uniform, and the quality of the treated water is stabilized. Since the surface area of the spherical filtration tank (2) is a filtration area, the filtration area is four times as large as that of a conventional cylindrical filter of the same diameter, decreasing the installation space. COPYRIGHT: (C)2004,JPO
Bibliography:Application Number: JP20020278851