WO2006136171A3 - Centrifugal decanter - Google Patents

Centrifugal decanter Download PDF

Info

Publication number
WO2006136171A3
WO2006136171A3 PCT/DK2006/000368 DK2006000368W WO2006136171A3 WO 2006136171 A3 WO2006136171 A3 WO 2006136171A3 DK 2006000368 W DK2006000368 W DK 2006000368W WO 2006136171 A3 WO2006136171 A3 WO 2006136171A3
Authority
WO
WIPO (PCT)
Prior art keywords
bowl
shaft
rotatable
disposed
screw
Prior art date
Application number
PCT/DK2006/000368
Other languages
French (fr)
Other versions
WO2006136171A2 (en
Inventor
Lars K Joergensen
Original Assignee
Westrup As
Lars K Joergensen
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Westrup As, Lars K Joergensen filed Critical Westrup As
Priority to EP06742483A priority Critical patent/EP1904238B1/en
Priority to DK06742483.8T priority patent/DK1904238T3/en
Priority to AT06742483T priority patent/ATE524238T1/en
Publication of WO2006136171A2 publication Critical patent/WO2006136171A2/en
Publication of WO2006136171A3 publication Critical patent/WO2006136171A3/en

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
    • B04B—CENTRIFUGES
    • B04B1/00—Centrifuges with rotary bowls provided with solid jackets for separating predominantly liquid mixtures with or without solid particles
    • B04B1/20—Centrifuges with rotary bowls provided with solid jackets for separating predominantly liquid mixtures with or without solid particles discharging solid particles from the bowl by a conveying screw coaxial with the bowl axis and rotating relatively to the bowl
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
    • B04B—CENTRIFUGES
    • B04B1/00—Centrifuges with rotary bowls provided with solid jackets for separating predominantly liquid mixtures with or without solid particles
    • B04B1/20—Centrifuges with rotary bowls provided with solid jackets for separating predominantly liquid mixtures with or without solid particles discharging solid particles from the bowl by a conveying screw coaxial with the bowl axis and rotating relatively to the bowl
    • B04B2001/205—Centrifuges with rotary bowls provided with solid jackets for separating predominantly liquid mixtures with or without solid particles discharging solid particles from the bowl by a conveying screw coaxial with the bowl axis and rotating relatively to the bowl with special construction of screw thread, e.g. segments, height

Landscapes

  • Centrifugal Separators (AREA)

Abstract

A centrifugal decanter (1) comprising a rotatable bowl (10) having a cylindrical part (11) and a conical part (12) ; a rotatable, screw conveyor (20) journalled within the bowl coaxially therewith, comprising a shaft (30) and a first helical screw (40) wound around the shaft; a circular weir (14) disposed at an end of said cylindrical part opposite the conical part; an outlet opening (13) from said bowl disposed at the conical part; and an inlet opening to the bowl arranged through the shaft, said bowl and the screw conveyor being rotatable independently with respect to each other wherein the screw conveyor comprises a second helical screw (41) intersecting the first helical screw at a point disposed on the shaft facing the weir and having a terminal end facing the outlet opening.
PCT/DK2006/000368 2005-06-23 2006-06-23 Centrifugal decanter WO2006136171A2 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP06742483A EP1904238B1 (en) 2005-06-23 2006-06-23 Centrifugal decanter
DK06742483.8T DK1904238T3 (en) 2005-06-23 2006-06-23 decanter centrifuge
AT06742483T ATE524238T1 (en) 2005-06-23 2006-06-23 DECANTER CENTRIFUGE

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DKPA200500922 2005-06-23
DKPA200500922 2005-06-23

Publications (2)

Publication Number Publication Date
WO2006136171A2 WO2006136171A2 (en) 2006-12-28
WO2006136171A3 true WO2006136171A3 (en) 2007-03-01

Family

ID=36933595

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DK2006/000368 WO2006136171A2 (en) 2005-06-23 2006-06-23 Centrifugal decanter

Country Status (4)

Country Link
EP (1) EP1904238B1 (en)
AT (1) ATE524238T1 (en)
DK (1) DK1904238T3 (en)
WO (1) WO2006136171A2 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102716816A (en) * 2012-06-20 2012-10-10 江苏博威铸业集团有限公司 Scroll discharge sedimentary centrifuge
DK177710B1 (en) 2012-09-14 2014-03-31 Alfa Laval Corp Ab Snegletransportør til en centrifugal separator, navnlig en dekantercentrifuge, og en centrifugal separator
CN102941166B (en) * 2012-11-26 2015-06-17 浙江天宇环保设备有限公司 Spoiler structure of centrifugal solid-liquid separator

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1205460B (en) * 1963-10-15 1965-11-18 Flottweg Motoren Werk Dr Georg Solid bowl screw centrifuge
DE1295494B (en) * 1965-11-25 1969-05-14 Westfalia Separator Ag Screw centrifuge with washing device for the thrown off solids
DE1297034B (en) * 1965-11-13 1969-06-04 Westfalia Separator Ag Solid bowl screw centrifuge
WO1997022411A1 (en) * 1995-12-18 1997-06-26 Alfa Laval Separation A/S A decanter centrifuge

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1205460B (en) * 1963-10-15 1965-11-18 Flottweg Motoren Werk Dr Georg Solid bowl screw centrifuge
DE1297034B (en) * 1965-11-13 1969-06-04 Westfalia Separator Ag Solid bowl screw centrifuge
DE1295494B (en) * 1965-11-25 1969-05-14 Westfalia Separator Ag Screw centrifuge with washing device for the thrown off solids
WO1997022411A1 (en) * 1995-12-18 1997-06-26 Alfa Laval Separation A/S A decanter centrifuge

Also Published As

Publication number Publication date
EP1904238B1 (en) 2011-09-14
ATE524238T1 (en) 2011-09-15
WO2006136171A2 (en) 2006-12-28
DK1904238T3 (en) 2012-01-09
EP1904238A2 (en) 2008-04-02

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Legal Events

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121 Ep: the epo has been informed by wipo that ep was designated in this application
DPE1 Request for preliminary examination filed after expiration of 19th month from priority date (pct application filed from 20040101)
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