FILTRATION DEVICE AND METHOD FOR CLEANING FILTER

Title:

FILTRATION DEVICE AND METHOD FOR CLEANING FILTER

Document Type and Number:

WIPO Patent Application WO/2021/019937

Kind Code:

A1

Abstract:

A filtration device comprising: a cylindrical filter element (21) that is formed into a cylindrical shape having one end opened and the other end closed and that performs filtration by way of passing a fluid being treated introduced via the opening in the direction from the inner circumferential surface toward the outer circumferential surface; a backwashing mechanism (5) that performs backwashing by way of a filtration fluid being drawn in the direction from the outer circumferential surface of the filter element (21) toward the inner circumferential surface; a high pressure cleaning mechanism (6) that performs high pressure cleaning by injecting a high pressure fluid so as to pass through the filter element (21) in a direction from the inner circumferential surface of the filter element (21) toward the outer circumferential surface; and a rotary drive mechanism (4) to which the backwashing mechanism (5) and the high pressure cleaning mechanism (6) are mounted and that causes the backwashing mechanism (5) and the high pressure cleaning mechanism (6) to rotate about the axis line (21a) of the filter element (21) in an internal space (F) of the filter element (21).

Inventors:

TAKAHASHI YUICHI (JP)

Application Number:

PCT/JP2020/023358

Publication Date:

February 04, 2021

Filing Date:

June 15, 2020

Export Citation:

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Assignee:

FUJI FILTER MFG CO LTD (JP)

International Classes:

B01D46/24; B01D24/48; B01D29/11; B01D29/60; B01D29/66

Domestic Patent References:

WO2018216247A1

2018-11-29

Foreign References:

JPH0647209A	1994-02-22
JP2017006876A	2017-01-12
JPS5028374U	1975-04-01
JP2017006876A	2017-01-12

Other References: