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Title:
SCREW-TYPE SEPARATION APPARATUS, CAGING, EFFLUENT TREATMENT SYSTEM, AND CLEANING METHOD FOR SCREW-TYPE SEPARATION APPARATUS
Document Type and Number:
WIPO Patent Application WO/2020/262207
Kind Code:
A1
Abstract:
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.

Inventors:
INOUE SATOSHI (JP)
HASHIMOTO YOSHITAKA (JP)
ANDO YOSHINORI (JP)
YOSHIDA TAKUYA (JP)
Application Number:
PCT/JP2020/024045
Publication Date:
December 30, 2020
Filing Date:
June 18, 2020
Export Citation:
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Assignee:
METAWATER CO LTD (JP)
International Classes:
B30B9/14; C02F3/12; C02F3/30; C02F11/121
Domestic Patent References:
WO2018179569A12018-10-04
WO2015186612A12015-12-10
Foreign References:
JP2005199171A2005-07-28
JP2002361489A2002-12-18
JP2002346794A2002-12-04
JP2017526531A2017-09-14
JP2013082005A2013-05-09
Attorney, Agent or Firm:
SAKAI INTERNATIONAL PATENT OFFICE (JP)
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