SCREW-TYPE SEPARATION APPARATUS, CAGING, EFFLUENT TREATMENT SYSTEM, AND CLEANING METHOD FOR SCREW-TYPE SEPARATION APPARATUS

WIPO Patent Application WO/2020/262207

A1

The present invention minimizes decline in discharge efficiency of a target object. This screw-type separation apparatus (1) is equipped with: a caging (10) that has provided therein an object discharge port (31B) which is disposed on the side of one end (30)B to discharge a dehydrated object (A) and a separated liquid discharge port (31C) which is disposed on the side of the other end (30C) to discharge a separated liquid (C) separated from the object (A) through dehydration; a screw shaft (12) that is provided inside the caging (10) so as to extend in an extension direction E extending from the one end (30B) toward the other end (30C); a first screw vane (14) that extends spirally on the outer circumferential surface of the screw shaft (12); and a second screw vane (16) that extends spirally on the outer circumferential surface of the screw shaft (12) so as to be separated from the first screw vane (14) by a prescribed gap in the extension direction (E). The caging (10) has a groove (34) formed in the inner circumferential surface (32a) thereof.

INOUE SATOSHI (JP)
HASHIMOTO YOSHITAKA (JP)
ANDO YOSHINORI (JP)
YOSHIDA TAKUYA (JP)

PCT/JP2020/024045

December 30, 2020

June 18, 2020

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METAWATER CO LTD (JP)

B30B9/14; C02F3/12; C02F3/30; C02F11/121

WO2018179569A1	2018-10-04
WO2015186612A1	2015-12-10
WO2015186612A1	2015-12-10

JP2005199171A	2005-07-28
JP2002361489A	2002-12-18
JP2002346794A	2002-12-04
JP2017526531A	2017-09-14
JP2013082005A	2013-05-09

See also references of EP 3991959A4

SAKAI INTERNATIONAL PATENT OFFICE (JP)

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