EP0203442A3 - Solid bowl decanter centrifuge with a secondary clarifying device - Google Patents

Solid bowl decanter centrifuge with a secondary clarifying device Download PDF

Info

Publication number
EP0203442A3
EP0203442A3 EP86106453A EP86106453A EP0203442A3 EP 0203442 A3 EP0203442 A3 EP 0203442A3 EP 86106453 A EP86106453 A EP 86106453A EP 86106453 A EP86106453 A EP 86106453A EP 0203442 A3 EP0203442 A3 EP 0203442A3
Authority
EP
European Patent Office
Prior art keywords
screw
drum
clarifying
centrifuge
solid bowl
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.)
Withdrawn
Application number
EP86106453A
Other languages
German (de)
French (fr)
Other versions
EP0203442A2 (en
Inventor
Wolfgang Dr. Bender
Dieter Dipl.-Ing. Mrotzek
Bernd Prof. Dr. Koglin
Karl-Heinz Dipl.-Ing. Steiner
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.)
Bayer AG
Original Assignee
Bayer AG
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 Bayer AG filed Critical Bayer AG
Publication of EP0203442A2 publication Critical patent/EP0203442A2/en
Publication of EP0203442A3 publication Critical patent/EP0203442A3/en
Withdrawn legal-status Critical Current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
    • B04B2001/2083—Configuration of liquid outlets

Landscapes

  • Centrifugal Separators (AREA)

Abstract

Die Vollmantelschneckenzentrifuge besteht aus einem Gehäuse (1), in der eine Trommel (2) drehbar angeordnet ist. Innerhalb der Trommel (2) befindet sich eine drehbar gelagerte Förderschnecke (3). Die Trommel (2) und die Schnecke (3) rotieren im Betrieb mit leicht unterschiedlichen Drahzahlen. Das Gehäuse (1) ist im Bereich des Klärteils (1) zylindrisch und im Bereich des Entfeuchtungsteils (11) konisch ausgebildet. Der Suspensionszulauf (5,6) mündet zwischen Klärteil (1) und Entfeuchtungsteil (11) in den hohlen Schneckenkern (12) ein. Der Flüssigkeitsablauf besteht aus einem Überlaufwehr (16) oder Schälrohr (9) am Klärteil (1). Der Feststoffaustrag (4) befindet sich am Ende des Entfeuchtun gsteils (11). Die Schnecke (3) ist innerhalb des Klärteils (1) an dem zylindrischen hohlen Schneckenkern (12) angeordnet, dessen Mantelfläche ganz oder teilweise mit einer radial durchströmten Nachklärvorrichtung versehen ist. Die Nachklärvorrichtung besteht entweder aus einem auf den perforierten Schneckenken (12) aufgebrachten Filtermittel oder aus einem Lamellenabscheider (14). Durch diese Einbauten kann der Abscheidegrad der Zentrifuge, insbesondere im Falle von langsam sedimentierenden Feststoffen verbessert werden. The solid bowl screw centrifuge consists of a housing (1), in which a drum (2) is rotatably arranged. There is a rotatably mounted inside the drum (2) Screw conveyor (3). The drum (2) and the screw (3) rotate in operation with slightly different numbers of wires. The Housing (1) is cylindrical in the area of the clarifying part (1) conical in the area of the dehumidifying part (11). The Suspension inlet (5,6) opens between the clarification section (1) and Dehumidifying part (11) into the hollow screw core (12). The Liquid drain consists of an overflow weir (16) or Peeling tube (9) on the clarifying part (1). The solids discharge (4) is located at the end of dehumidification    partly (11). The screw (3) is on within the clarifying part (1) the cylindrical hollow screw core (12) is arranged, the lateral surface of which is wholly or partially flowed through radially Clarifier is provided. The Clarifier consists of either one on the perforated Augers (12) or filter media applied a lamella separator (14). Through these fittings, the Separation efficiency of the centrifuge, especially in the case of slow sedimenting solids can be improved.

EP86106453A 1985-05-25 1986-05-13 Solid bowl decanter centrifuge with a secondary clarifying device Withdrawn EP0203442A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3518885 1985-05-25
DE19853518885 DE3518885A1 (en) 1985-05-25 1985-05-25 FULL-COVERED SCREW CENTRIFUGE WITH RECHARGEING DEVICE

Publications (2)

Publication Number Publication Date
EP0203442A2 EP0203442A2 (en) 1986-12-03
EP0203442A3 true EP0203442A3 (en) 1988-05-25

Family

ID=6271656

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86106453A Withdrawn EP0203442A3 (en) 1985-05-25 1986-05-13 Solid bowl decanter centrifuge with a secondary clarifying device

Country Status (3)

Country Link
US (1) US4714456A (en)
EP (1) EP0203442A3 (en)
DE (1) DE3518885A1 (en)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DK154540C (en) * 1986-05-06 1989-04-24 Alfa Laval Separation As decanter centrifuge
DE4005755A1 (en) * 1989-10-17 1991-04-18 Kloeckner Humboldt Deutz Ag FULL-COVERED SNAIL CENTRIFUGE
US5067939A (en) * 1990-03-21 1991-11-26 Bird Machine Company Conveyorless clarifier
DE4132593A1 (en) * 1991-09-30 1993-04-01 Linde Kca Dresden Gmbh REACTOR FOR COUNTERFLOW TREATMENT OF SOLID AND LIQUID
US5403486A (en) * 1991-12-31 1995-04-04 Baker Hughes Incorporated Accelerator system in a centrifuge
DE4328369A1 (en) * 1993-08-25 1995-03-02 Kloeckner Humboldt Deutz Ag centrifuge
US5364335A (en) * 1993-12-07 1994-11-15 Dorr-Oliver Incorporated Disc-decanter centrifuge
US5971907A (en) * 1998-05-19 1999-10-26 Bp Amoco Corporation Continuous centrifugal separator with tapered internal feed distributor
CN1088629C (en) * 1999-11-08 2002-08-07 吕资谷 Steady flow type horizontal helico-centrifuger
US6572524B1 (en) * 2000-07-14 2003-06-03 Alfa Laval Inc. Decanter centrifuge having a heavy phase solids baffle
US6561965B1 (en) 2000-10-20 2003-05-13 Alfa Laval Inc. Mist pump for a decanter centrifuge feed chamber
DE102010020901A1 (en) 2010-05-18 2011-11-24 Gea Mechanical Equipment Gmbh Solid bowl centrifuge
DE102012004548B4 (en) * 2012-03-10 2014-01-02 Flottweg Se Drum centrifuge with an inlet acceleration device and an outlet brake device
CN103586141B (en) * 2012-08-15 2016-09-28 钦州鑫能源科技有限公司 Centrifugal separating device
DK3106230T3 (en) * 2015-06-19 2020-04-14 Andritz Sas decanter centrifuge
WO2023175538A1 (en) * 2022-03-15 2023-09-21 Flsmidth A/S Decanter centrifuge with lamellae for improved fines recovery

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2622794A (en) * 1948-09-16 1952-12-23 Sharples Corp Centrifugal separator
DE965027C (en) * 1951-05-16 1957-05-29 Separator Ab Centrifuge for separating adsorbing and / or neutralizing solids from mineral, vegetable or animal oils
DE1760883U (en) * 1957-12-06 1958-01-30 Krauss Maffei Ag CENTRIFUGE FOR SEPARATING SUSPENSIONS WITH A SOLID COMPARED TO THE LIQUID, SPECIFICALLY LIGHTER.
FR1441639A (en) * 1965-04-27 1966-06-10 Sharples France Improvements to centrifugal separator devices with extractor screws
FR1449064A (en) * 1965-07-02 1966-08-12 Sharples France Improvements made to centrifugal devices, more specifically with extraction screws
FR1449063A (en) * 1965-07-02 1966-08-12 Sharples France Improvements made to centrifugal separator devices, in particular of the extraction screw type
DE1482721A1 (en) * 1964-07-18 1969-06-12 Thrige Titan As separator
FR2227031A1 (en) * 1973-04-28 1974-11-22 Bayer Ag

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1020575B (en) * 1954-06-15 1957-12-05 Const Guinard Continuously working solid bowl centrifuge with solids discharge by a screw conveyor
DE1976574U (en) * 1963-06-01 1968-01-04 Voith Gmbh J M SCREW CENTRIFUGE.
DE1432822A1 (en) * 1963-09-28 1969-05-29 Kloeckner Humboldt Deutz Ag Solid bowl centrifuge for the continuous separation of solid-liquid mixtures
US3348767A (en) * 1965-04-19 1967-10-24 Bird Machine Co Centrifugal separator
US3501346A (en) * 1966-12-22 1970-03-17 Sugar Cane Growers Coop Treatment of sugar mill clarifier mud
US3575709A (en) * 1968-08-20 1971-04-20 Bird Machine Co Method of cleaning sugar crystals
DE2147406A1 (en) * 1971-09-22 1973-04-05 Flottweg Werk Bruckmayer SCREW FOR A FULL-CASED SCREW CENTRIFUGE
US3795361A (en) * 1972-09-06 1974-03-05 Pennwalt Corp Centrifuge apparatus
SU539611A1 (en) * 1974-06-25 1976-12-25 Проектный И Научно-Исследовательский Институт "Гипроникель" Separating plate pack to the centrifuge
SE398868B (en) * 1976-07-23 1978-01-23 Weibull Ab Ingenjorsfirman Nils DEVICE FOR EXHAUSTING LARGE GOODS FROM A STORAGE SPACE
US4209128A (en) * 1979-04-06 1980-06-24 Yara Engineering Corporation Methods and apparatus for classifying fine particle solids
US4334647A (en) * 1980-12-03 1982-06-15 Bird Machine Company, Inc. Centrifuges
DE3202294C1 (en) * 1982-01-26 1983-04-21 Westfalia Separator Ag, 4740 Oelde Continuously working full-jacket countercurrent centrifugal extractor
DE3216393A1 (en) * 1982-05-03 1983-11-03 Bayer Ag, 5090 Leverkusen SCREW CENTRIFUGE WITH WASHING DEVICE

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2622794A (en) * 1948-09-16 1952-12-23 Sharples Corp Centrifugal separator
DE965027C (en) * 1951-05-16 1957-05-29 Separator Ab Centrifuge for separating adsorbing and / or neutralizing solids from mineral, vegetable or animal oils
DE1760883U (en) * 1957-12-06 1958-01-30 Krauss Maffei Ag CENTRIFUGE FOR SEPARATING SUSPENSIONS WITH A SOLID COMPARED TO THE LIQUID, SPECIFICALLY LIGHTER.
DE1482721A1 (en) * 1964-07-18 1969-06-12 Thrige Titan As separator
FR1441639A (en) * 1965-04-27 1966-06-10 Sharples France Improvements to centrifugal separator devices with extractor screws
FR1449064A (en) * 1965-07-02 1966-08-12 Sharples France Improvements made to centrifugal devices, more specifically with extraction screws
FR1449063A (en) * 1965-07-02 1966-08-12 Sharples France Improvements made to centrifugal separator devices, in particular of the extraction screw type
FR2227031A1 (en) * 1973-04-28 1974-11-22 Bayer Ag

Also Published As

Publication number Publication date
US4714456A (en) 1987-12-22
DE3518885A1 (en) 1986-11-27
EP0203442A2 (en) 1986-12-03

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Inventor name: STEINER, KARL-HEINZ, DIPL.-ING.

Inventor name: MROTZEK, DIETER, DIPL.-ING.

Inventor name: BENDER, WOLFGANG, DR.

Inventor name: KOGLIN, BERND, PROF. DR.