EP1407821B1 - Centrifugeuse avec arrêt d'urgence et système d'alimentation - Google Patents

Centrifugeuse avec arrêt d'urgence et système d'alimentation Download PDF

Info

Publication number
EP1407821B1
EP1407821B1 EP03020652A EP03020652A EP1407821B1 EP 1407821 B1 EP1407821 B1 EP 1407821B1 EP 03020652 A EP03020652 A EP 03020652A EP 03020652 A EP03020652 A EP 03020652A EP 1407821 B1 EP1407821 B1 EP 1407821B1
Authority
EP
European Patent Office
Prior art keywords
centrifuge
emergency
particles
balls
centrifugal drum
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 - Fee Related
Application number
EP03020652A
Other languages
German (de)
English (en)
Other versions
EP1407821A3 (fr
EP1407821A2 (fr
Inventor
Reinhard Dipl.-Ing. Moss
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.)
GEA Mechanical Equipment GmbH
Original Assignee
Westfalia Separator GmbH
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 Westfalia Separator GmbH filed Critical Westfalia Separator GmbH
Publication of EP1407821A2 publication Critical patent/EP1407821A2/fr
Publication of EP1407821A3 publication Critical patent/EP1407821A3/fr
Application granted granted Critical
Publication of EP1407821B1 publication Critical patent/EP1407821B1/fr
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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
    • 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
    • B04B1/10—Centrifuges with rotary bowls provided with solid jackets for separating predominantly liquid mixtures with or without solid particles with discharging outlets in the plane of the maximum diameter of the bowl
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
    • B04B—CENTRIFUGES
    • B04B7/00—Elements of centrifuges
    • B04B7/02—Casings; Lids
    • B04B7/06—Safety devices ; Regulating

Definitions

  • the invention relates to a centrifuge, in particular separator with a vertical axis of rotation, which has a centrifugal drum, which is provided with a feed pipe for centrifuged material and with outlet nozzles, wherein the centrifugal drum is preceded by an emergency stop system.
  • the invention further relates to a method for realizing an emergency stop function of a centrifuge.
  • a generic centrifuge in the form of a separator with a vertical axis of rotation according to the preamble of claim 1 is known from DE 651 907 C known.
  • the DE 33 20 152 which is generic, shows a check valve with a ball arranged on a spring.
  • a centrifuge designed as a separator with a vertical axis of rotation is known with a nozzle drum, above which an emergency stop container opening into the inlet of the separator for receiving a liquid, such as water, is arranged to realize an emergency stop system.
  • the centrifugal drum may continue to rotate for a few minutes until it stops, after the emergency stop function has been activated, the liquid is fed into the centrifugal drum until it stops, so that the negative effect of the imbalance is not due to the nozzle drum becoming empty (Loss of the balancing fluid) even stronger.
  • the emergency stop container must therefore absorb, for example, up to 10m 3 of water.
  • the invention solves this object with respect to the centrifuge by the subject-matter of claim 1 and with respect to the method by the subject-matter of claim 12.
  • the emergency stop system has a supply system for the outlet nozzles clogging particles, in particular balls, in the centrifugal drum.
  • the invention further provides a method for realizing an emergency stop function of a centrifuge, in which particles, in particular balls, are guided into the centrifugal drum, which block the outlet nozzles.
  • the drum In the emergency stop case, the drum is stopped or "shut down" by the solid particles or particles, in particular spheres, with little or no further addition of water. Since the centrifugal drum can not run empty, the risk of "increasing unbalance forces" is reduced, which occurs when an existing imbalance, the centrifugal drum is emptied at high speed, as this enhances the influence of imbalance on the centrifugal drum, because the balancing effect of Product or water is eliminated.
  • the solids discharge is provided with outlet nozzles and the balls have a larger diameter than the outlet nozzles.
  • the container with the balls can be dimensioned very much smaller in particular according to this variant and is thus also cheaper than the water tank of the prior art, since only so many balls are necessary that the outlet nozzles are blocked.
  • centrifugal drum must be opened after activation of the emergency stop system to remove the particles, in particular spheres. This opening is but in the emergency stop case due to imbalances i. In general anyway required, so that usually no additional expense arises by removing the balls from the centrifugal drum.
  • the particles in particular spheres, have a diameter which is larger by at least 5% than the outlet nozzles.
  • the particles, in particular spheres may be made of rubber or plastic or advantageously to avoid hygiene problems or the like of dried and optionally pressed solid of the centrifuged material to be processed.
  • the particles are introduced under pressure into the centrifugal drum.
  • FIG. 1 shows a centrifuge designed as a separator 1 with a vertical axis of rotation, which has a centrifugal drum 2 - a nozzle drum - which is surrounded by a hood 3.
  • the centrifugal drum 2 has here a guided from above into the centrifugal drum 2 supply pipe 4 for centrifugal goods, which opens into a manifold 5, from which the centrifuged material is passed into the centrifugal space 6 of the centrifugal drum 2.
  • a supply line from below through the spindle in a distributor is conceivable.
  • the spindle acts in this case as a supply pipe.
  • At least one solids discharge for a firmer phase and at least one liquid discharge for a more liquid phase are provided.
  • the solids discharge is realized by the outlet nozzles 7 which are distributed around the circumference of the centrifugal drum 2 (or which may for example be formed in a piston valve) and through which the solid is passed into a solids trap 8 and from there into a discharge channel 9.
  • the liquid outlet is here provided with a paring disc 10, which opens into a discharge line 11.
  • the supply pipe 4 is preceded by a feed line 12 which is arranged above the centrifugal drum 2.
  • a branch pipe 13 which is provided with a valve 14 - the valve 14 is thus upstream of the supply pipe - and that at its end facing away from the feed line 13 into a container 15 for receiving particles, in particular balls 16, for example Rubber, opens, which have a larger diameter than the outlet nozzles 7.
  • particles in particular balls 16, for example Rubber
  • the container 15 with the balls 16 can be dimensioned much smaller and is therefore also cheaper than the water tank of the prior art.

Landscapes

  • Centrifugal Separators (AREA)

Claims (13)

  1. Centrifugeuse, en particulier séparateur (1) comportant un axe de rotation vertical, qui présente un panier centrifuge (2) - un panier à buses - pourvu d'un tube d'amenée (4) de produit à centrifuger ainsi que de buses d'échappement (7), un système d'arrêt d'urgence étant monté en amont du panier centrifuge (2), caractérisé en ce que le système d'arrêt d'urgence présente un système d'amenée (17), dans le panier centrifuge, de particules bouchant les buses d'échappement, en particulier de billes (16).
  2. Centrifugeuse selon la revendication 1, caractérisée en ce que les billes (16) présentent un diamètre plus important que les buses d'échappement (7).
  3. Centrifugeuse selon la revendication 1, caractérisée en ce que les billes (16) présentent un diamètre qui est plus important d'au moins 5 % par rapport à celui des buses d'échappement (7).
  4. Centrifugeuse selon la revendication 1 ou 2, caractérisée en ce que les particules, en particulier les billes (16) ont un poids spécifique plus élevé que la/les phase(s) liquide(s) du produit à centrifuger.
  5. Centrifugeuse selon l'une des revendications précédentes, caractérisée en ce que les particules, en particulier les billes (16), sont en caoutchouc ou en matière synthétique.
  6. Centrifugeuse selon l'une des revendications précédentes, caractérisée en ce que les particules, en particulier les billes (16) sont en matière solide séchée.
  7. Centrifugeuse selon l'une des revendications précédentes, caractérisée en ce que le système d'amenée présente un récipient d'arrêt d'urgence (15) destiné à recevoir les billes (16).
  8. Centrifugeuse selon l'une des revendications précédentes, caractérisée en ce que les particules, en particulier les billes présentes dans le récipient d'arrêt d'urgence (15) sont reçues dans un fluide véhicule.
  9. Centrifugeuse selon l'une des revendications précédentes, caractérisée en ce que le récipient d'arrêt d'urgence est conformé en récipient précontraint.
  10. Centrifugeuse selon l'une des revendications précédentes, caractérisée en ce qu'une soupape (14) est montée en amont du tube d'amenée (4).
  11. Centrifugeuse selon l'une des revendications précédentes, caractérisée en ce que la soupape (14) est une soupape normalement ouverte.
  12. Procédé de réalisation d'une fonction d'arrêt d'urgence d'une centrifugeuse, en particulier selon l'une des revendications précédentes, caractérisé en ce qu'en cas d'arrêt d'urgence, sont acheminées dans le panier centrifuge (2) des particules, en particulier des billes (16) qui bouchent les buses d'échappement (7).
  13. Procédé selon la revendication 12, caractérisé en ce que les particules sont introduites sous pression dans le panier centrifuge (2).
EP03020652A 2002-10-11 2003-09-11 Centrifugeuse avec arrêt d'urgence et système d'alimentation Expired - Fee Related EP1407821B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10247646A DE10247646B4 (de) 2002-10-11 2002-10-11 Zentrifuge mit Not-Aus-System
DE10247646 2002-10-11

Publications (3)

Publication Number Publication Date
EP1407821A2 EP1407821A2 (fr) 2004-04-14
EP1407821A3 EP1407821A3 (fr) 2005-09-21
EP1407821B1 true EP1407821B1 (fr) 2007-11-14

Family

ID=32010463

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03020652A Expired - Fee Related EP1407821B1 (fr) 2002-10-11 2003-09-11 Centrifugeuse avec arrêt d'urgence et système d'alimentation

Country Status (4)

Country Link
US (1) US7056272B2 (fr)
EP (1) EP1407821B1 (fr)
JP (1) JP2004276013A (fr)
DE (2) DE10247646B4 (fr)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE517375C2 (sv) * 2000-10-16 2002-06-04 Alfa Laval Ab Sätt och arrangemang för att snabbt sänka rotationshastigheten hos en centrifugalseparator
DE10247646B4 (de) * 2002-10-11 2004-08-19 Westfalia Separator Ag Zentrifuge mit Not-Aus-System
DE102004003435A1 (de) * 2004-01-21 2005-08-11 Beiersdorf Ag Dünnflüssige O/W-Emulsion
DE102004036130C5 (de) * 2004-07-24 2013-07-25 Gea Westfalia Separator Gmbh Verfahren zum Betreiben einer Zentrifuge und Zentrifuge zur Durchführung des Verfahrens
EP2808086A1 (fr) 2013-05-27 2014-12-03 Alfa Laval Corporate AB Séparateur centrifuge et procédé pour déterminer le moment approprié pour l'élimination du contenu de la phase lourde
US11105526B1 (en) 2017-09-29 2021-08-31 Integrated Global Services, Inc. Safety shutdown systems and methods for LNG, crude oil refineries, petrochemical plants, and other facilities

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE651907C (de) * 1934-03-18 1937-10-22 Bergedorfer Eisenwerk Akt Ges Schleudertrommel mit einer Foerdervorrichtung zum stetigen Austragen des ausgeschiedenen Schlammes
CH203503A (de) * 1938-05-09 1939-03-15 Ter Meer Gustav Ing Dr Verfahren zum Bremsen der Trommel von Schleudermaschinen, sobald ein einstellbares Mass überschreitende Vibrationen auftreten, und Einrichtung an Schleudermaschinen zur Ausführung dieses Verfahrens.
DE1679855B1 (de) * 1967-04-10 1971-04-22 Buckau Wolf Maschf R Vorrichtung zum Trocknen und Kuehlen von unter Wasser granuliertem Kunststoff
DE1812105A1 (de) * 1968-12-02 1970-06-11 Westfalia Separator Ag Bremseinrichtung fuer Separatoren
SE336561B (fr) 1969-10-23 1971-07-05 Alfa Laval Ab
SE409662B (sv) * 1977-12-28 1979-09-03 Alfa Laval Ab Anordning for leckageindikering vid en centrifugalseparator
DE3320152A1 (de) * 1983-06-03 1984-12-06 Westfalia Separator Ag, 4740 Oelde Kontinuierlich arbeitende schleudertrommel zum konzentrieren suspendierter feststoffe
SE455839B (sv) * 1983-12-22 1988-08-15 Weibull Nils Ab Pendlingsindikator for centrifug
US4643709A (en) * 1985-05-01 1987-02-17 Alfa-Laval, Inc. Method of operating nozzle centrifuges
JPH06343900A (ja) * 1993-06-02 1994-12-20 Mitsubishi Kakoki Kaisha Ltd 遠心濾過機の振動制御装置及び方法
JPH08131890A (ja) 1994-11-02 1996-05-28 Mitsubishi Kakoki Kaisha Ltd 遠心濾過機の運転停止方法
JP3037689B1 (ja) * 1999-06-09 2000-04-24 巴工業株式会社 横軸円筒型遠心分離機の回転筒の洗浄方法
SE517375C2 (sv) * 2000-10-16 2002-06-04 Alfa Laval Ab Sätt och arrangemang för att snabbt sänka rotationshastigheten hos en centrifugalseparator
DE10103769C2 (de) * 2001-01-27 2003-07-31 Westfalia Separator Food Tec G Zentrifuge
DE10247646B4 (de) * 2002-10-11 2004-08-19 Westfalia Separator Ag Zentrifuge mit Not-Aus-System

Also Published As

Publication number Publication date
DE10247646A1 (de) 2004-04-22
DE10247646B4 (de) 2004-08-19
EP1407821A3 (fr) 2005-09-21
JP2004276013A (ja) 2004-10-07
US20040072666A1 (en) 2004-04-15
DE50308589D1 (de) 2007-12-27
US7056272B2 (en) 2006-06-06
EP1407821A2 (fr) 2004-04-14

Similar Documents

Publication Publication Date Title
DE2601528C2 (fr)
DE2633275B2 (de) Verfahren zum Enthülsen und teilweise Trocknen von gewaschenem Getreide und Maschine zur Durchführung des Verfahrens
EP3426405B1 (fr) Séparateur
EP2451585B1 (fr) Séparateur à axe rotatif vertical
EP1407821B1 (fr) Centrifugeuse avec arrêt d'urgence et système d'alimentation
EP1345700A1 (fr) Centrifugeuse a vis, a bol plein, a assiettes
EP2928613A2 (fr) Buse d'évacuation d'un tambour centrifuge
EP0430985B1 (fr) Dispositif de traitement de milieux liquides ou peu visqueux
EP0515396B1 (fr) Centrifugeuse a tambour centrifugeur a vidange automatique
EP2392405B1 (fr) Séparateur
WO2016034626A1 (fr) Séparateur et procédé pour séparer des particules d'un flux de gaz
DE3817126A1 (de) Filterzentrifuge zum trennen von suspensionen
EP2012970A1 (fr) Dispositif de production d'un jet à haute pression
DE102009032618A1 (de) Zentrifuge mit einer um eine Drehachse drehbaren Schleudertrommel
EP3600679B1 (fr) Séparateur à vidange automatique pour l'évacuation en douceur de produits sensibles au cisaillement et procédé pour le faire fonctionner
EP2566626B2 (fr) Séparateur à buses et procédé pour évacuer une phase solide du séparateur à buses
DE60028188T2 (de) Siebvorrichtung
DE2150605A1 (de) Zentrifuge
DE2255766A1 (de) Zentrifuge
DE1906170A1 (de) Vorrichtung fuer die Betaetigung einer direkten Kupplung in einem Drehmoment-Wandler
DE117919C (fr)
DE4439037C1 (de) Verfahren zum Zerstäuben von Suspensionen mit einer Hohlkörperdüse und Hohlkörperdüse zum Zerstäuben von Suspensionen
DE1781261A1 (de) Zwei-Stroemungs-Absperrorgan
WO2010007057A1 (fr) Dispositif et procédé destinés à retirer des fluides et/ou des solides
CH422720A (de) Verfahren und Vorrichtung zum Aufbringen einer Filterhilfsschicht

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

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PT RO SE SI SK TR

AX Request for extension of the european patent

Extension state: AL LT LV MK

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PT RO SE SI SK TR

AX Request for extension of the european patent

Extension state: AL LT LV MK

RIC1 Information provided on ipc code assigned before grant

Ipc: 7B 04B 7/06 A

Ipc: 7B 04B 1/10 B

17P Request for examination filed

Effective date: 20051105

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

AKX Designation fees paid

Designated state(s): DE FR GB IT NL SE

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): DE FR GB IT NL SE

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

Free format text: NOT ENGLISH

REF Corresponds to:

Ref document number: 50308589

Country of ref document: DE

Date of ref document: 20071227

Kind code of ref document: P

REG Reference to a national code

Ref country code: SE

Ref legal event code: TRGR

GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)

Effective date: 20080313

ET Fr: translation filed
PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed

Effective date: 20080815

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20120925

Year of fee payment: 10

Ref country code: SE

Payment date: 20120925

Year of fee payment: 10

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: IT

Payment date: 20120924

Year of fee payment: 10

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20121102

Year of fee payment: 10

Ref country code: FR

Payment date: 20121011

Year of fee payment: 10

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: NL

Payment date: 20120917

Year of fee payment: 10

REG Reference to a national code

Ref country code: NL

Ref legal event code: V1

Effective date: 20140401

REG Reference to a national code

Ref country code: SE

Ref legal event code: EUG

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20130912

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20130911

REG Reference to a national code

Ref country code: DE

Ref legal event code: R119

Ref document number: 50308589

Country of ref document: DE

Effective date: 20140401

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

Effective date: 20140530

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20130911

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20130911

Ref country code: NL

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20140401

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20140401

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20130930