EP0447742A3 - Decanter centrifuge - Google Patents

Decanter centrifuge Download PDF

Info

Publication number
EP0447742A3
EP0447742A3 EP19910100071 EP91100071A EP0447742A3 EP 0447742 A3 EP0447742 A3 EP 0447742A3 EP 19910100071 EP19910100071 EP 19910100071 EP 91100071 A EP91100071 A EP 91100071A EP 0447742 A3 EP0447742 A3 EP 0447742A3
Authority
EP
European Patent Office
Prior art keywords
bowl
head
ring
plural number
shaped
Prior art date
Legal status (The legal status 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 status listed.)
Granted
Application number
EP19910100071
Other versions
EP0447742A2 (en
EP0447742B1 (en
Inventor
Katsunori Nishida
Hiroshi Sano
Eiji Ichinose
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Baker Hughes Holdings LLC
Original Assignee
Tsukishima Kikai Co Ltd
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=13390455&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0447742(A3) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Tsukishima Kikai Co Ltd filed Critical Tsukishima Kikai Co Ltd
Publication of EP0447742A2 publication Critical patent/EP0447742A2/en
Publication of EP0447742A3 publication Critical patent/EP0447742A3/en
Application granted granted Critical
Publication of EP0447742B1 publication Critical patent/EP0447742B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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
    • B04B2001/2075—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 means for recovering the energy of the outflowing liquid
    • 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
    • B04B2001/2083—Configuration of liquid outlets

Landscapes

  • Centrifugal Separators (AREA)

Abstract

A decanter centrifuge used for solid-liquid separation of a feed solution containing suspended solids. According to a preferred embodiment, plural number of clarified liquid discharge ports (4) are formed on a bowl-head (3) of a rotating bowl (1). On the other hand, a ring-shaped weir (5) is mounted on the bowl-head (3), coaxially has a ring-shaped overflow cavity communicating with each liquid discharge port (4) and is provided with a peripheral opening directing the rotative axis of the bowl-head. Additionally, plural number of reducing blades (6) are provided in the ring-shaped overflow cavity in a radial form from the rotative axis of the bowl-head. Then, the cavity is divided into plural number of portions while each reducing blade (6) is fixed to the inner face of the ring-shaped weir (5). Due to the reducing blades, appropriate quantity of the clarified liquid is overflown. <IMAGE>
EP91100071A 1990-03-19 1991-01-02 Decanter centrifuge Expired - Lifetime EP0447742B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP69019/90 1990-03-19
JP2069019A JP2997700B2 (en) 1990-03-19 1990-03-19 Decanter centrifuge

Publications (3)

Publication Number Publication Date
EP0447742A2 EP0447742A2 (en) 1991-09-25
EP0447742A3 true EP0447742A3 (en) 1991-12-18
EP0447742B1 EP0447742B1 (en) 1994-05-18

Family

ID=13390455

Family Applications (1)

Application Number Title Priority Date Filing Date
EP91100071A Expired - Lifetime EP0447742B1 (en) 1990-03-19 1991-01-02 Decanter centrifuge

Country Status (5)

Country Link
EP (1) EP0447742B1 (en)
JP (1) JP2997700B2 (en)
AT (1) ATE105739T1 (en)
DE (1) DE69102002T2 (en)
DK (1) DK0447742T3 (en)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH09313985A (en) * 1996-05-27 1997-12-09 Kotobuki Giken Kogyo Kk Horizontal centrifugal concentrator
KR100398168B1 (en) * 2000-10-10 2003-09-19 임광석 centrifugal machine
DE10203652B4 (en) * 2002-01-30 2006-10-19 Westfalia Separator Ag Solid bowl centrifuge with a weir
JP5009764B2 (en) * 2007-12-06 2012-08-22 巴工業株式会社 Horizontal centrifuge and dam forming member
KR101111490B1 (en) * 2010-03-10 2012-02-22 송윤화 Centrifugal
KR101152176B1 (en) * 2010-11-01 2012-06-15 송윤화 Centrifugal
WO2012161560A2 (en) * 2011-05-24 2012-11-29 Lok Kong Loh Tong Weng Modern decanter
ES2774429T3 (en) 2014-03-14 2020-07-21 Andritz Sas Decanting centrifuge
ES2787014T3 (en) * 2017-05-04 2020-10-14 Andritz Sas Decanter centrifuge
CN117679796A (en) * 2023-12-29 2024-03-12 瓮福达州化工有限责任公司 A solid-liquid separation system for the bottom flow of the clarification tank in wet phosphoric acid

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3423015A (en) * 1967-08-23 1969-01-21 Ametek Inc Continuous centrifugal separator with pool depth control
DE2901607B1 (en) * 1979-01-17 1980-06-04 Westfalia Separator Ag Solid bowl screw centrifuge
GB2088255A (en) * 1980-12-03 1982-06-09 Bird Machine Co Centrifuges

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3423015A (en) * 1967-08-23 1969-01-21 Ametek Inc Continuous centrifugal separator with pool depth control
DE2901607B1 (en) * 1979-01-17 1980-06-04 Westfalia Separator Ag Solid bowl screw centrifuge
GB2088255A (en) * 1980-12-03 1982-06-09 Bird Machine Co Centrifuges

Also Published As

Publication number Publication date
JP2997700B2 (en) 2000-01-11
DE69102002D1 (en) 1994-06-23
ATE105739T1 (en) 1994-06-15
EP0447742A2 (en) 1991-09-25
EP0447742B1 (en) 1994-05-18
DK0447742T3 (en) 1994-06-20
DE69102002T2 (en) 1994-09-01
JPH03270747A (en) 1991-12-02

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