Title:
SCREW-CONVEYOR-TYPE SEPARATING DEVICE AND WASTE WATER TREATMENT SYSTEM
Document Type and Number:
WIPO Patent Application WO/2015/186612
Kind Code:
A1
Abstract:
Provided are a screw-conveyor-type separating device and a waste water treatment system that make it possible to efficiently separate a liquid component from a treated object containing a liquid, and that can be maintained and managed at low cost. The device is provided with a casing (11) for compressing sludge floc at one end, a screw shaft (12), a first screw vane (13) provided in a spiral shape to the outer peripheral surface of the screw shaft, and a second screw vane (14) provided so as to be set apart from the first screw vane at a prescribed interval along the longitudinal direction of the screw shaft. Within the casing, concentrating zones (Q) and separated liquid zones (R) substantially divided from each other are formed by the first screw vane and the second screw vane. The screw shaft is rotated to compress the sludge floc and separate the floc into sludge and a separated liquid in the concentrating zones, and the separated liquid is moved rearward in the separated liquid zones and discharged while the sludge is discharged to the exterior.
Inventors:
SUGAWARA YOSHIYUKI (JP)
Application Number:
PCT/JP2015/065473
Publication Date:
December 10, 2015
Filing Date:
May 28, 2015
Export Citation:
Assignee:
METAWATER CO LTD (JP)
International Classes:
B30B9/14; B01D43/00; C02F11/12
Foreign References:
| JPS57118899A | 1982-07-23 | |||
| JPS60111798A | 1985-06-18 | |||
| JP2014000486A | 2014-01-09 | |||
| JP2001170697A | 2001-06-26 | |||
| JPH11300400A | 1999-11-02 | |||
| JP2009011993A | 2009-01-22 | |||
| US1333249A | 1920-03-09 | |||
| JP2001321989A | 2001-11-20 |
Other References:
See also references of EP 3153312A4
Attorney, Agent or Firm:
SAKAI, HIROAKI (JP)
Hiroaki Sakai (JP)
Hiroaki Sakai (JP)
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