EP0203442A3 - Solid bowl decanter centrifuge with a secondary clarifying device - Google Patents
Solid bowl decanter centrifuge with a secondary clarifying device Download PDFInfo
- 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- Withdrawn
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.
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)
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)
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)
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 |
-
1985
- 1985-05-25 DE DE19853518885 patent/DE3518885A1/en not_active Withdrawn
-
1986
- 1986-05-07 US US06/860,713 patent/US4714456A/en not_active Expired - Fee Related
- 1986-05-13 EP EP86106453A patent/EP0203442A3/en not_active Withdrawn
Patent Citations (8)
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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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
17P | Request for examination filed |
Effective date: 19860513 |
|
AK | Designated contracting states |
Kind code of ref document: A2 Designated state(s): CH DE FR GB IT LI |
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PUAL | Search report despatched |
Free format text: ORIGINAL CODE: 0009013 |
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AK | Designated contracting states |
Kind code of ref document: A3 Designated state(s): CH DE FR GB IT LI |
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17Q | First examination report despatched |
Effective date: 19890106 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION HAS BEEN WITHDRAWN |
|
18W | Application withdrawn |
Withdrawal date: 19890220 |
|
RIN1 | Information on inventor provided before grant (corrected) |
Inventor name: STEINER, KARL-HEINZ, DIPL.-ING. Inventor name: MROTZEK, DIETER, DIPL.-ING. Inventor name: BENDER, WOLFGANG, DR. Inventor name: KOGLIN, BERND, PROF. DR. |