EP0892680B1 - Schleudertrommel - Google Patents
Schleudertrommel Download PDFInfo
- Publication number
- EP0892680B1 EP0892680B1 EP97920499A EP97920499A EP0892680B1 EP 0892680 B1 EP0892680 B1 EP 0892680B1 EP 97920499 A EP97920499 A EP 97920499A EP 97920499 A EP97920499 A EP 97920499A EP 0892680 B1 EP0892680 B1 EP 0892680B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- inlet
- centrifugal drum
- rib
- space
- chamber
- 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.)
- Expired - Lifetime
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
- B04B—CENTRIFUGES
- B04B11/00—Feeding, charging, or discharging bowls
- B04B11/08—Skimmers or scrapers for discharging ; Regulating thereof
- B04B11/082—Skimmers for discharging 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
- B04B1/04—Centrifuges with rotary bowls provided with solid jackets for separating predominantly liquid mixtures with or without solid particles with inserted separating walls
- B04B1/08—Centrifuges with rotary bowls provided with solid jackets for separating predominantly liquid mixtures with or without solid particles with inserted separating walls of conical shape
Definitions
- the invention relates to a centrifugal drum a plate insert and a fixed inlet pipe, the extends into an inlet space rotating with the drum, one with a ribbed antechamber and one contains rib-free inlet chamber, which over a Annular gap are connected to each other between the outer diameter a disc attached to the inlet pipe and a wall of the inlet space is formed, wherein the inlet area with a discharge chamber for discharge Liquid is connected via channels, due to their Throttling effect a complete filling of the inlet chamber cause.
- the invention has for its object the known To design the centrifugal drum so that the mechanical Reduced centrifugal load in the inlet area becomes.
- the arrangement of the rib-free annular space is outside of the inlet area.
- the entry of the channels can therefore provided on a relatively small diameter be, so that a significant reduction in mechanical Stress on the centrifuged material is reached.
- the rib-free Annulus at the radially outer boundary of the inlet space outgoing channels provided. This version is constructively very easy to implement.
- the Rib-free annular space on the periphery of the discharge chamber intended. At this point there are sensitive particles already separated, so that there is no negative influence is more possible.
- the rib-free annular space can also be in the spaces the plate insert may be provided. All you have to do is the spacer strips usually present on the plates be interrupted at a suitable point.
- the Provide guide channels on the underside of the pane thereby becomes a liquid rotation in the inlet chamber counteracted and a large pressure drop from the prechamber to the inlet chamber, making it a relatively high one static inlet pressure is realizable in the inlet space.
- the guide channels do not have any harmful fluid swirl generate, they are aligned radially in their central area.
- the guide channels may be advantageous to have the guide channels at their central Area tangential to the direction of rotation of the centrifugal drum align. In this case there is a swirl of liquid generated, the carry by rotating Counteracts drum parts.
- a further advantageous embodiment is characterized in that that the guide channels through a cover plate are closed, the inside diameter with the outside diameter of the inlet pipe forms an annular gap which communicates with the inlet chamber.
- FIG. 1 denotes the centrifugal drum, the one in the area of the inlet is stationary during operation Has peeling device 2.
- the centrifugal drum 1 is provided with a solid space 3 and a separation space, that of one consisting of a multitude of individual plates Plate insert 4 is formed, the plate insert 4 is carried by a distributor 5.
- the separation and solids space are on top of a drum cover 6 and at the bottom of a drum jacket 7 limited.
- Inlet pipe 8 is provided on which a peeling disc 9 is fixed for draining the clarified liquid.
- the peeling disc 9 is arranged in a discharge chamber 10 and is connected to the separation space via discharge channels 11.
- the inlet pipe 8 extends into an inlet space 12 with a prechamber provided with ribs 13 14 and a rib-free inlet chamber 15, which has a Annular gap 16 are connected to each other between the Outside diameter of a fixed on the inlet pipe 8 Disk 17 and the inner diameter of the inlet space 12th is formed.
- the disc 17 is on the underside Guide channels 18 and a cover plate 19, the Inside diameter with the outside diameter of the inlet pipe 8 forms an annular gap 20.
- the inlet space 12 stands via channels 21 with the discharge chamber 10 in connection.
- the Channels 21 are formed by ribs 22 which are radial extend inwards up to the vicinity of the inlet pipe 8, the ribs 22 through a partition 23 opposite the Inlet chamber 15 are shielded.
- a rib-free annular space 24 is provided below the distributor 5, which is radially flowed through by the liquid to be discharged. Further rib-free annular spaces 25, 26 are in the spaces the plate insert 4 and on the periphery of the discharge chamber 10 provided.
- the centrifugal liquid is the through the inlet pipe 8 Inlet space 12 supplied and initially fills via channels 21 the solid space 3 from. About the plate insert 4 and the discharge channels 11 the liquid enters the discharge chamber 10, from which it is derived by means of a peeling disc 9 becomes.
- the rib-free annular spaces 24, 25, 26 cause such an increase in flow resistance the centrifugal drum 1 that the completely filled inlet space 12 a static pressure must be applied.
- the load is the load Fluid when accelerating to angular velocity the centrifugal drum 1 is relatively small.
- the one in the inlet area 12 static generated by the supplied liquid Pressure is transferred via the rib-free inlet chamber 15 on the annular gap 16.
- This pressure is by the pressure of the rotating liquid in the pre-chamber 14 compensated. Because the rotating partition 23 to take with you the liquid in the inlet chamber 15 tends to Liquid constantly via the guide channels 18 and the annular gap 20 subtracted from the periphery of the inlet chamber 15 and fed back into their center. Depending on the shape of the Guide channels 18, this liquid has no peripheral speed or one against the direction of rotation of the Centrifugal drum 1 directed peripheral speed. There the friction effect of the partition 23 is relatively small the liquid when flowing through the inlet chamber 15 no noteworthy take-away.
- rib-free annular spaces 24, 25, 26 can also other known elements for increasing the flow resistance can be used such as or long narrow friction channels.
Landscapes
- Centrifugal Separators (AREA)
Description
Claims (8)
- Schleudertrommel (1) mit einem Tellereinsatz (4) und einem ortsfesten Einlaufrohr (8), das sich in einen mit der Trommel rotierenden Einlaufraum (12) erstreckt, der eine mit Rippen (13) versehene Vorkammer (14) und eine rippenfreie Einlaufkammer (15) beinhaltet, die über einen Ringspalt (16) miteinander verbunden sind, der zwischen dem Außendurchmesser einer am Einlaufrohr festgelegten Scheibe (17) und einer Wandung des Einlaufraumes gebildet wird, wobei der Einlaufraum (12) mit einer Ableitkammer (10) für abzuführende Flüssigkeit über Kanäle (21) verbunden ist, dadurch gekennzeichnet, daß die Kanäle (21) durch Rippen (22) gebildet werden, die sich radial einwärts bis in die Nähe des Einlaufrohres (8) erstrecken, wobei die Rippen (22) durch eine Trennwand (23) gegenüber der Einlaufkammer (15) abgeschirmt sind und eine Drosselwirkung durch mindestens einen rippenfreien Ringraum (24,25,26) erzeugt wird, der von der abzuführenden Flüssigkeit radial durchströmt wird.
- Schleudertrommel nach Anspruch 1, dadurch gekennzeichnet, daß der rippenfreie Ringraum (24) an der radial äußeren Begrenzung der vom Einlaufraum (12) ausgehenden Kanäle (21) vorgesehen ist.
- Schleudertrommel nach Anspruch 1, dadurch gekennzeichnet, daß der rippenfreie Ringraum (26) an der Peripherie der Ableitkammer (10) vorgesehen ist.
- Schleudertrommel nach Anspruch 1, dadurch gekennzeichnet, daß der rippenfreie Ringraum (25) in den Zwischenräumen des Tellereinsatzes (4) vorgesehen ist.
- Schleudertrommel nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß die Scheibe (17) auf der Unterseite mit Leitkanälen (18) versehen ist.
- Schleudertrommel nach Anspruch 5, dadurch gekennzeichnet, daß die Leitkanäle (18) in ihrem zentralen Bereich radial ausgerichtet sind.
- Schleudertrommel nach Anspruch 5, dadurch gekennzeichnet, daß die Leitkanäle (18) in ihrem zentralen Bereich tangential gegen die Drehrichtung der Schleudertrommel ausgerichtet sind.
- Schleudertrommel nach einem der Ansprüche 5 bis 7, dadurch gekennzeichnet, daß die Leitkanäle (18) durch eine Deckscheibe (19) geschlossen sind, deren Innendurchmesser mit dem Außendurchmesser des Einlaufrohres (8) einen Ringspalt (20) bildet, der mit der Einlaufkammer (15) in Verbindung steht.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19613215 | 1996-04-02 | ||
DE19613215A DE19613215C1 (de) | 1996-04-02 | 1996-04-02 | Schleudertrommel |
PCT/DE1997/000431 WO1997036686A1 (de) | 1996-04-02 | 1997-03-04 | Schleudertrommel |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0892680A1 EP0892680A1 (de) | 1999-01-27 |
EP0892680B1 true EP0892680B1 (de) | 2000-07-12 |
Family
ID=7790297
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP97920499A Expired - Lifetime EP0892680B1 (de) | 1996-04-02 | 1997-03-04 | Schleudertrommel |
Country Status (5)
Country | Link |
---|---|
US (1) | US6033356A (de) |
EP (1) | EP0892680B1 (de) |
JP (1) | JP2000507493A (de) |
DE (2) | DE19613215C1 (de) |
WO (1) | WO1997036686A1 (de) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10311610B4 (de) * | 2003-03-14 | 2005-04-28 | Westfalia Separator Ag | Schälscheibe für einen Separator |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10143405C2 (de) * | 2001-09-05 | 2003-12-18 | Westfalia Separator Ag | Schälscheibenvorrichtung zum Ableiten von Flüssigkeit aus einer Zentrifugentrommel |
US7605481B2 (en) * | 2003-10-24 | 2009-10-20 | Nippon Mining & Metals Co., Ltd. | Nickel alloy sputtering target and nickel alloy thin film |
GB0804688D0 (en) | 2008-03-13 | 2008-04-16 | Gyrus Group Plc | Surgical instrument |
DE202008011597U1 (de) * | 2008-08-30 | 2010-01-07 | Gea Westfalia Separator Gmbh | Schälscheibe einer Zentrifuge |
SE536019C2 (sv) | 2009-11-06 | 2013-04-02 | Alfa Laval Corp Ab | Hermetisk centrifugalseparator |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2294468A (en) * | 1939-05-27 | 1942-09-01 | Laval Separator Co De | Centrifugal separator |
CH451823A (de) * | 1966-05-23 | 1968-05-15 | Alfa Laval Ab | Verfahren zur stossfreien Einführung einer Flüssigkeit in eine Zentrifuge sowie Zentrifuge zur Ausführung des Verfahrens |
DE2033646A1 (de) * | 1969-07-24 | 1971-03-11 | Alfa Laval AB Tumba (Schweden) | Anordnung in einem Zentrifugal scheider |
DE3503581C1 (de) * | 1985-02-02 | 1986-04-17 | Westfalia Separator Ag | Schleudertrommel zum Klaeren und Trennen von Schleuderfluessigkeiten |
SE452260B (sv) * | 1986-03-12 | 1987-11-23 | Alfa Laval Separation Ab | Centrifugalseparator anordnad for utmatning av en separerad produkt med bestemd koncentration |
DE3627826C2 (de) * | 1986-08-16 | 1995-02-09 | Westfalia Separator Ag | Schleudertrommel |
DE3716035A1 (de) * | 1987-05-14 | 1988-12-01 | Westfalia Separator Ag | Verfahren zum abscheiden von feststoffen aus einer produktfluessigkeit in einer schleudertrommel |
DE3731229A1 (de) * | 1987-09-17 | 1989-03-30 | Westfalia Separator Ag | Schaelscheibe fuer die ableitung von fluessigkeiten aus schleudertrommeln |
SE8900113D0 (sv) * | 1989-01-13 | 1989-01-13 | Alfa-Laval Separation Ab | Anordning foer omvandling av kinetisk energi till tryckenergi |
SE8901254D0 (sv) * | 1989-04-07 | 1989-04-07 | Alfa Laval Separation Ab | Energiomvandlingsanordning |
SE467294B (sv) * | 1990-10-29 | 1992-06-29 | Alfa Laval Separation Ab | Centrifugalseparator med organ foer tillfoersel av tillsatsvaetska |
SE502682C2 (sv) * | 1994-04-21 | 1995-12-11 | Tetra Laval Holdings & Finance | Utmatningsorgan för centrifugalseparator |
-
1996
- 1996-04-02 DE DE19613215A patent/DE19613215C1/de not_active Expired - Fee Related
-
1997
- 1997-03-04 JP JP9534787A patent/JP2000507493A/ja active Pending
- 1997-03-04 US US09/142,675 patent/US6033356A/en not_active Expired - Fee Related
- 1997-03-04 EP EP97920499A patent/EP0892680B1/de not_active Expired - Lifetime
- 1997-03-04 WO PCT/DE1997/000431 patent/WO1997036686A1/de active IP Right Grant
- 1997-03-04 DE DE59702012T patent/DE59702012D1/de not_active Expired - Fee Related
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10311610B4 (de) * | 2003-03-14 | 2005-04-28 | Westfalia Separator Ag | Schälscheibe für einen Separator |
US7025715B2 (en) | 2003-03-14 | 2006-04-11 | Westfalia Separator Ag | Rotary-cutting disk for a centrifuge for a centrifuge with a duct wall contoured in a wave shape |
Also Published As
Publication number | Publication date |
---|---|
DE19613215C1 (de) | 1997-09-25 |
US6033356A (en) | 2000-03-07 |
JP2000507493A (ja) | 2000-06-20 |
DE59702012D1 (de) | 2000-08-17 |
WO1997036686A1 (de) | 1997-10-09 |
EP0892680A1 (de) | 1999-01-27 |
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