SCREW TYPE SEPARATION DEVICE AND WASTEWATER TREATMENT SYSTEM

Title:

SCREW TYPE SEPARATION DEVICE AND WASTEWATER TREATMENT SYSTEM

Document Type and Number:

WIPO Patent Application WO/2018/179569

Kind Code:

A1

Abstract:

The present invention makes it possible to suppress reductions in the separation efficiency for a target material. A screw type separation device 1 has: a casing 10 that has a separated liquid discharge opening 34 on one end part 30 side and has a target material discharge opening 36 on the other end part 32 side, with the other end part 32 side being positioned lower in the vertical direction than the one end part 30 side; a screw shaft 12 provided inside the casing 10; a first screw fin 14; and a second screw fin 16 forming a first space T1 between one surface 16A and the first screw fin 14 facing the one surface 16A and a second space T2 between another surface 16B and the first screw fin 14 facing the other surface 16B. Target material introduced into the first space T1 is moved to the other end part 32 side within the first space T1 by gravity and dehydrated, and dehydrated target material A is discharged through the target material discharge opening 36. Separated liquid C is made to move from the first space T1 to the second space T2 and discharged through the separated liquid discharge opening 34.

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Inventors:

SUGAWARA YOSHIYUKI (JP)
TAN MASAFUMI (JP)

Application Number:

PCT/JP2017/040484

Publication Date:

October 04, 2018

Filing Date:

November 09, 2017

Export Citation:

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Assignee:

METAWATER CO LTD (JP)

International Classes:

B30B9/16; C02F11/12

Domestic Patent References:

WO2015186612A1	2015-12-10
WO2015186612A1	2015-12-10

Foreign References:

JP2001293500A	2001-10-23
JP2003245509A	2003-09-02

Other References: