EP1509329B1 - Vollmantel-schneckenzentrifuge mit schälscheibe und hydrohermetischer abdichtung sowie verfahren zu deren betrieb - Google Patents
Vollmantel-schneckenzentrifuge mit schälscheibe und hydrohermetischer abdichtung sowie verfahren zu deren betrieb Download PDFInfo
- Publication number
- EP1509329B1 EP1509329B1 EP03730121A EP03730121A EP1509329B1 EP 1509329 B1 EP1509329 B1 EP 1509329B1 EP 03730121 A EP03730121 A EP 03730121A EP 03730121 A EP03730121 A EP 03730121A EP 1509329 B1 EP1509329 B1 EP 1509329B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- chamber
- solid
- barrier
- screw centrifuge
- disk
- 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
- B04B1/20—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
Definitions
- the invention relates to a solid bowl screw centrifuge according to the preamble of claim 1 and a method for its operation according to claim 14.
- a generic solid bowl screw centrifuge shows the DE 195 00 600th C1.
- DE 40 14 552 C1 shows a separator with a vertical axis of rotation with a Peeling disc and a locking disc, between which a gas can be fed to to prevent degassing of solvents.
- the invention is also a simple method for operating the invention be created according to the centrifuge. This is specified in claim 14.
- the barrier chamber with barrier fluid supply - in combination with the two locks or Siphonusionn - allows for structurally simple and cost-effective Make a reliable seal of the centrifugal space against the surrounding The atmosphere.
- the generic DE 198 30 653 C1 can through the labyrinth seal
- the product, on the other hand, is in contact with the surrounding atmosphere come.
- Locking chambers are also of centrifuges with vertical axis of rotation itself known, in which also a separate barrier liquid is passed (DE 196 31 226). Locking chambers in such separators are also known from DE 657 473 known. However, it has not been considered and probably not as beneficial considers, even with centrifuges with horizontal axis of rotation to realize a barrier chamber, which with a separate, independent of the centrifugal barrier fluid is charged.
- the lock or siphon disc in the lock chamber can easily a sufficient pressure is built up so that a gas such as CO2 in the liquid (sphase) is held.
- a gas such as CO2 in the liquid (sphase)
- the pressure in the barrier chamber is variable, which preferably up to 4bar, in particular 0.5 to 2.5bar. The pressure affects the type of Promotion of the solid and / or its consistency.
- the supply line opens into an annular space of the blocking chamber and a drain hole, which the continuous feeding and deriving the Allow barrier fluid in and out of the lock chamber.
- This will open much simpler way than in DE 196 31 226 A1 continuous cleaning the lock chamber feasible and thus the formation of deposits in the lock chamber effectively prevented.
- the centrifuge is also high hygiene requirements just.
- a dissolved gas such as CO 2 can be kept at least largely in the liquid to be discharged or processed, which greatly simplifies the processing of products such as beer.
- the lock chamber as the paring disc with respect to the Main bearing of the drum drum side or arranged towards the drum what it makes it possible to design the construction very simply. This does not result only a permanent seal against the surrounding atmosphere but u.U. also a seal against product contamination by oil mist of the liquid side Main camp (not shown here).
- Fig. 1 shows a solid bowl screw centrifuge 1 with a drum 3 with a horizontal axis of rotation, in which a screw 5 is arranged.
- the drum 3 and the screw 5 each have a substantially cylindrical portion and a conically tapering section here.
- An axially extending centric inlet pipe 7 serves to supply the Spent material 8 via a here to the inlet pipe 7 vertical distributor 9 in the Centrifugal space 11 between the screw 5 and the drum.
- the bearing with the bearing 6 screw 5 rotates with a slightly smaller or greater speed than the drum 3 and promotes the ejected Solid S to the conical section out of the drum 3 to a solids discharge (not shown here).
- the liquid flows to the larger drum diameter at the rear End of the cylindrical portion of the drum 3 and is there through a weir 15 in an axially adjoining the actual Schleudenaum chamber 17th passed with a smaller diameter compared to the centrifugal space.
- a paring disc 19 for the derivation of Liquid phase L arranged, which is followed by a discharge channel 20, the the liquid phase L is derived from the drum 3.
- the peeling disc 19 is direct arranged on the stationary in operation inlet pipe 7, wherein between peeling disk 19 and inlet pipe 7 a sealed gap-free arrangement is realized.
- annular shoulder 23 is arranged, which radially from the inner periphery of Chamber 17 extends inwards.
- the chamber 17 zoom in radially inwards to near the inlet pipe or to a diameter which is smaller than the diameter of the screw 5 and opens into an axial passage 27, to which in the axial direction as a barrier chamber acting annular space 29 connects, which in turn in an axial Abtechnischskanal 31 for sealing fluid on the outer circumference of the inlet pipe 7 and the discharge channel 21 opens for the centrifuged, wherein the inner diameter of the discharge channel 31 for sealing liquid is smaller than the inner diameter the passage 27, so that from the lock chamber 19 overflowing barrier fluid runs through the discharge channel 31.
- Siphon or locking disc 33 arranged stationary, which is from the inside extends radially outwardly into the lock chamber.
- a leading from the outside into the centrifuge feed line 35 - here parallel to Inlet pipe 7 arranged on the outer circumference - allows the direct supply one of the centrifugal independent barrier fluid such as water from the inside the lock chamber 29.
- a drain hole 37 - here at the outer periphery of the annular space 29 at an acute angle leading to the axis of rotation radially outward from the drum 3 - allows the continuous Deriving the barrier liquid from the annular space 29, which is an advantageous continuously cleaning causes.
Landscapes
- Centrifugal Separators (AREA)
- Sealing Devices (AREA)
- Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
- Refuse Collection And Transfer (AREA)
Description
- Fig. 1
- einen Schnitt durch eine erfindungsgemäße Vollmantel-Schneckenzentrifuge; und
- Fig. 2
- eine Ausschnittsvergrößerung aus Fig. 1.
- Vollmantel-Schneckenzentrifuge
- 1
- Lager
- 2
- Trommel
- 3
- Schnecke
- 5
- Einlaufrohr
- 7
- Schleudergut
- 8
- Verteiler
- 9
- Schleuderraum
- 11
- Ableitungskanal
- 13
- Wehr
- 15
- Kammer
- 17
- Schälscheibe
- 19
- Ableitungskanal
- 20
- Sperr- und Siphonscheibe
- 21
- Ringschulter
- 23
- Eintrittsöffnung
- 25
- Passage
- 27
- Ringraum
- 29
- Ableitungskanal
- 31
- Sperr- und Siphonscheibe
- 33
- Zulaufleitung
- 35
- Ablaufbohrung
- 37
- Flüssigkeitspegel
- P1, P2, P3
- Schleudergut
- S
Claims (17)
- Vollmantel-Schneckenzentrifuge mita) einer drehbaren Trommel (3) mit einer horizontalen Drehachse, die einen Schleuderraum (11) umgibt,b) einer in der Trommel (3) angeordneten drehbaren Schnecke (5),c) wenigstens einem Flüssigkeits- und wenigstens einem Feststoffaustrag, wobei der Flüssigkeitsaustrag mit einer Schälscheibe (19) erfolgt, der eine Kammer (29) nachgeschaltet ist,
dadurch gekennzeichnet, dassd) die Kammer (29) einen Ringraum (29) mit einer darin angeordneten Sperr- und Siphonscheibe (33) aufweist,e) wobei die Kammer (29) eine hydrohermetische Sperrkammer (29) zur Abdichtung des Schleuderraumes (11) gegen die Umgebung mittels einer Sperrflüssigkeit ist, der direkt eine Zulaufleitung (35) für die separate, vom Schleudergut unabhängige Sperrflüssigkeit zugeordnet ist, undf) die Schnecke (1) eine zweite Siphonscheibe (21) aufweist, die sich von der Schnecke (5) aus radial nach außen in den Schleuderraum (11) erstreckt. - Vollmantel-Schneckenzentrifuge nach Anspruch 1, dadurch gekennzeichnet, daß die Sperrkammer (29) der Schälscheibe (19) unmittelbar nachgeschaltet ist.
- Vollmantel-Schneckenzentrifuge nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass die zweite Siphonscheibe (21) auf der Schnecke (2) vor dem Feststoffaustrag angeordnet ist.
- Vollmantel-Schneckenzentrifuge nach Anspruch 3, dadurch gekennzeichnet, dass die zweite Siphonscheibe (21) auf der Schnecke (2) in dem sich konisch verjüngenden Bereich angeordnet ist.
- Vollmantel-Schneckenzentrifuge nach einem der vorstehenden Ansprüche, dadurch gekennzeichnet, daß in den Ringraum (29) die Zulaufleitung (35) und eine Ablaufbohrung (37) münden, welche das kontinuierliche Zuleiten und Ableiten der Sperrflüssigkeit in die und aus der Sperrkammer (29) ermöglichen.
- Vollmantel-Schneckenzentrifuge nach einem der vorstehenden Ansprüche, dadurch gekennzeichnet, daß die Trommel (3) und die Schnecke (5) jeweils einen im wesentlichen zylindrischen Abschnitt und einen sich verjüngenden Abschnitt aufweisen, wobei sich an den zylindrischen Abschnitt eine Kammer (17) mit einem vorzugsweise im Vergleich zum Schleuderraum kleineren Durchmesser anschließt, in der die Schälscheibe (19) angeordnet ist.
- Vollmantel-Schneckenzentrifuge nach einem der vorstehenden Ansprüche, dadurch gekennzeichnet, daß am Innenumfang der Kammer (17) eine Ringschulter (23) angeordnet ist.
- Vollmantel-Schneckenzentrifuge nach einem der vorstehenden Ansprüche, dadurch gekennzeichnet, daß sich die Kammer (17) auf der von der Ringscheibe (23) abgewandten Seite der Schälscheibe (19) radial nach innen hin bis auf einen Durchmesser erstreckt, der kleiner ist als der Durchmesser der Schnecke (5) ist und daß die Kammer (17) in eine Passage (27) mündet, an die sich in axialer Richtung der Ringraum (29) anschließt, welcher in einen axialen Ableitungskanal (31) für Sperrflüssigkeit mündet, wobei der innere Durchmesser dieses Ableitungskanale (31) kleiner ist als jener der Passage (27), so dass aus der Sperrkammer (19) überlaufende Sperrflüssigkeit durch den Ableitungskanal (31) ableitbar ist.
- Vollmantel-Schneckenzentrifuge nach einem der vorstehenden Ansprüche, dadurch gekennzeichnet, daß in dem Ringraum (29) an den Innenumfang der Kammer senkrecht die erste Sperr- und Siphonscheibe (33) angesetzt oder angeformt ist, welche sich von innen her radial nach außen in den Ringraum (29) erstreckt.
- Vollmantel-Schneckenzentrifuge nach einem der vorstehenden Ansprüche, dadurch gekennzeichnet, dass die Zulaufleitung (35) parallel zu einem Einlaufrohr (7) für Schleudergut an dessen Außenumfang angeordnet ist.
- Vollmantel-Schneckenzentrifuge nach einem der vorstehenden Ansprüche, dadurch gekennzeichnet, dass die Ablaufbohrung (37) vom Außenumfang des Ringraumes (29) vorzugsweise spitzwinklig zur Drehachse radial nach außen aus der Trommel (3) führt.
- Vollmantel-Schneckenzentrifuge nach einem der vorstehenden Ansprüche, dadurch gekennzeichnet, dass die erste Siphonscheibe (21) und die Ringschulter (23) derart aufeinander abgestimmt sind, dass sich im Betrieb der Zentrifuge ein Flüssigkeitspegel P 1 zwischen ihnen ausbildet.
- Vollmantel-Schneckenzentrifuge nach einem der vorstehenden Ansprüche, dadurch gekennzeichnet, dass die Schälscheibe (19) abgedichtet auf dem im Betrieb stillstehenden Einlaufrohr (7) angeordnet ist.
- Verfahren zum Betreiben einer Vollmantel-Schneckenzentrifuge nach einem der vorstehenden Ansprüche, dadurch gekennzeichnet, dass in eine hydrohermetische Sperrkammer (29) zur Abdichtung des Schleuderraumes (11) gegen die Umgebung durch eine Zulaufleitung (35) eine separate, vom Schleudergut unabhängige Sperrflüssigkeit geleitet wird.
- Verfahren nach Anspruch 14, dadurch gekennzeichnet, dass durch das permanente Ableiten von Sperrflüssigkeit eine kontinuierliche Reinigung der Sperrkammer (29) erfolgt.
- Verfahren nach Anspruch 14 oder 15, dadurch gekennzeichnet, dass durch Variation des Durchmessers der Sperr- und Siphonscheibe (33) der Druck in der Sperrkammer (29) eingestellt wird.
- Verfahren nach Anspruch 14, 15 oder 16, dadurch gekennzeichnet, dass der Druck in dem Schleuderraum bis zu 4 bar, insbesondere 0,5 bis 2,5 bar beträgt.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10223802 | 2002-05-29 | ||
DE10223802A DE10223802B4 (de) | 2002-05-29 | 2002-05-29 | Vollmantel-Schneckenzentrifuge |
PCT/EP2003/005530 WO2003099446A1 (de) | 2002-05-29 | 2003-05-27 | Vollmantel-schneckenzentrifuge mit schälscheibe und hydrohermetischer abdichtun g sowie verfahren zu deren betrieb |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1509329A1 EP1509329A1 (de) | 2005-03-02 |
EP1509329B1 true EP1509329B1 (de) | 2005-11-09 |
Family
ID=29557371
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP03730121A Expired - Lifetime EP1509329B1 (de) | 2002-05-29 | 2003-05-27 | Vollmantel-schneckenzentrifuge mit schälscheibe und hydrohermetischer abdichtung sowie verfahren zu deren betrieb |
Country Status (14)
Country | Link |
---|---|
US (1) | US7056273B2 (de) |
EP (1) | EP1509329B1 (de) |
AT (1) | ATE309050T1 (de) |
AU (1) | AU2003240718B2 (de) |
BR (1) | BR0311565B1 (de) |
CA (1) | CA2485082C (de) |
DE (2) | DE10223802B4 (de) |
DK (1) | DK1509329T3 (de) |
ES (1) | ES2248753T4 (de) |
MX (1) | MXPA04011892A (de) |
PL (1) | PL200041B1 (de) |
RU (1) | RU2283188C2 (de) |
UA (1) | UA78059C2 (de) |
WO (1) | WO2003099446A1 (de) |
Families Citing this family (12)
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DE10148774B4 (de) * | 2001-10-02 | 2005-08-11 | Westfalia Separator Ag | Vollmantel-Schneckenzentrifuge mit Druckgehäuse |
DE10212187A1 (de) * | 2002-03-20 | 2003-10-02 | Hiller Gmbh | Schneckenzentrifuge |
DE10223802B4 (de) * | 2002-05-29 | 2005-06-09 | Westfalia Separator Ag | Vollmantel-Schneckenzentrifuge |
DE10336350B4 (de) * | 2003-08-08 | 2007-10-31 | Westfalia Separator Ag | Vollmantel-Schneckenzentrifuge, mit Schälscheibe |
US7255670B2 (en) * | 2004-03-04 | 2007-08-14 | Hutchison Hayes, L.P. | Three phase decanter centrifuge |
DE102005027553A1 (de) | 2005-06-14 | 2006-12-28 | Westfalia Separator Ag | Drei-Phasen-Vollmantel-Schneckenzentrifuge und Verfahren zur Regelung des Trennprozesses |
DE102006006178A1 (de) | 2006-02-10 | 2007-08-16 | Westfalia Separator Ag | Vollmantel-Schneckenzentrifuge und Verfahren zu deren Betrieb |
US8192342B2 (en) | 2006-05-11 | 2012-06-05 | Westfalia Separator Ag | Separator having a liquid outlet including a throttling device |
CN101664718B (zh) * | 2009-09-09 | 2011-12-14 | 江苏华大离心机制造有限公司 | 卧式螺旋卸料沉降离心机 |
EP3085449B1 (de) * | 2015-04-24 | 2020-06-03 | Alfa Laval Corporate AB | Zentrifugalabscheider und zugehörige verfahren |
DK3398687T3 (da) * | 2017-05-04 | 2020-04-20 | Andritz Sas | Dekantercentrifuge |
RU209116U1 (ru) * | 2021-05-17 | 2022-02-02 | Российская Федерация, от имени которой выступает Государственная корпорация по атомной энергии "Росатом" (Госкорпорация "Росатом") | Шнек барабана-испарителя для очистки его внутренней поверхности |
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DE19830653C1 (de) * | 1998-07-09 | 1999-11-11 | Westfalia Separator Ag | Verfahren und Vorrichtung zum Bestimmen des Flüssigkeitsspiegels in einem Dekanter |
DE19922236C2 (de) | 1999-05-14 | 2002-10-24 | Westfalia Separator Ag | Zentrifuge und Verfahren zu deren Betrieb |
DE19922237C2 (de) | 1999-05-14 | 2003-01-02 | Westfalia Separator Ag | Zentrifuge |
DE19952804C2 (de) | 1999-11-02 | 2003-07-03 | Westfalia Separator Ind Gmbh | Vollmantel-Schneckenzentrifuge zur Verarbeitung eines zur Schäumung neigenden Schleudergutes |
DE19952785A1 (de) | 1999-11-03 | 2001-05-10 | Dieter Haller | Träger zur Erstellung von wärmeisolierten Dächern und Dämmelement für einen Dachträger |
US6572524B1 (en) | 2000-07-14 | 2003-06-03 | Alfa Laval Inc. | Decanter centrifuge having a heavy phase solids baffle |
DK1232794T3 (da) * | 2001-02-08 | 2004-10-25 | Westfalia Separator Ag | Fremgangsmåde til adskillelse af en flerfaseblanding og et dekanteringscentrifugesystem til udövelse af fremgangsmåden |
DE10148774B4 (de) * | 2001-10-02 | 2005-08-11 | Westfalia Separator Ag | Vollmantel-Schneckenzentrifuge mit Druckgehäuse |
DE10223802B4 (de) * | 2002-05-29 | 2005-06-09 | Westfalia Separator Ag | Vollmantel-Schneckenzentrifuge |
-
2002
- 2002-05-29 DE DE10223802A patent/DE10223802B4/de not_active Expired - Fee Related
-
2003
- 2003-05-27 MX MXPA04011892A patent/MXPA04011892A/es active IP Right Grant
- 2003-05-27 DE DE50301628T patent/DE50301628D1/de not_active Expired - Lifetime
- 2003-05-27 AU AU2003240718A patent/AU2003240718B2/en not_active Ceased
- 2003-05-27 ES ES03730121T patent/ES2248753T4/es not_active Expired - Lifetime
- 2003-05-27 CA CA002485082A patent/CA2485082C/en not_active Expired - Lifetime
- 2003-05-27 UA UA20041210936A patent/UA78059C2/uk unknown
- 2003-05-27 DK DK03730121T patent/DK1509329T3/da active
- 2003-05-27 WO PCT/EP2003/005530 patent/WO2003099446A1/de not_active Application Discontinuation
- 2003-05-27 BR BRPI0311565-8A patent/BR0311565B1/pt not_active IP Right Cessation
- 2003-05-27 RU RU2004139021/12A patent/RU2283188C2/ru active
- 2003-05-27 EP EP03730121A patent/EP1509329B1/de not_active Expired - Lifetime
- 2003-05-27 PL PL372242A patent/PL200041B1/pl unknown
- 2003-05-27 AT AT03730121T patent/ATE309050T1/de active
- 2003-05-27 US US10/513,927 patent/US7056273B2/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
ES2248753T3 (es) | 2006-03-16 |
EP1509329A1 (de) | 2005-03-02 |
AU2003240718A1 (en) | 2003-12-12 |
DE50301628D1 (de) | 2005-12-15 |
ATE309050T1 (de) | 2005-11-15 |
US7056273B2 (en) | 2006-06-06 |
PL372242A1 (en) | 2005-07-11 |
DK1509329T3 (da) | 2006-01-30 |
MXPA04011892A (es) | 2005-11-23 |
ES2248753T4 (es) | 2008-08-01 |
PL200041B1 (pl) | 2008-11-28 |
RU2004139021A (ru) | 2005-07-10 |
CA2485082C (en) | 2008-03-18 |
WO2003099446A1 (de) | 2003-12-04 |
DE10223802A1 (de) | 2003-12-18 |
BR0311565B1 (pt) | 2011-08-23 |
DE10223802B4 (de) | 2005-06-09 |
US20050227848A1 (en) | 2005-10-13 |
UA78059C2 (en) | 2007-02-15 |
CA2485082A1 (en) | 2003-12-04 |
RU2283188C2 (ru) | 2006-09-10 |
BR0311565A (pt) | 2007-04-27 |
AU2003240718B2 (en) | 2008-10-02 |
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