EP0801593B1 - Centrifugeuse a bol plein - Google Patents

Centrifugeuse a bol plein Download PDF

Info

Publication number
EP0801593B1
EP0801593B1 EP95935450A EP95935450A EP0801593B1 EP 0801593 B1 EP0801593 B1 EP 0801593B1 EP 95935450 A EP95935450 A EP 95935450A EP 95935450 A EP95935450 A EP 95935450A EP 0801593 B1 EP0801593 B1 EP 0801593B1
Authority
EP
European Patent Office
Prior art keywords
sealing
gas
liquid
liquid level
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
Application number
EP95935450A
Other languages
German (de)
English (en)
Other versions
EP0801593A1 (fr
Inventor
Willi Ostkamp
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 EP0801593A1 publication Critical patent/EP0801593A1/fr
Application granted granted Critical
Publication of EP0801593B1 publication Critical patent/EP0801593B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • 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
    • B04B11/00—Feeding, charging, or discharging bowls
    • B04B11/06—Arrangement of distributors or collectors in centrifuges
    • 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 centrifuge with a centrifugal drum to separate a solid-liquid mixture, the drum interior of one Discharge chamber for the separated liquid through a weir disc rotating with the centrifugal drum whose inner diameter is the inner diameter of the liquid level in the interior of the drum.
  • Such a centrifuge is known for example from DE 37 28 901 C1.
  • the discharge device for the separated Solid is usually designed in such a way that no liquid can drain over it.
  • the severed Liquid can therefore only over the inner diameter emerge from the weir disc so that this diameter determines the liquid level in the interior of the drum.
  • the weir is separated by two weir disks arranged to each other formed the have a different inner diameter.
  • the Weir disks can be actuated hydraulically Sliders can be activated selectively by two different ones Set liquid levels in the centrifugal drum. A stepless choice of the liquid level is not possible here and the design effort is relative high.
  • the invention has for its object the centrifugal drum to train so that with little constructive Effort a stepless change in the liquid level is possible inside the drum.
  • This object is achieved in that two flat surfaces the weir disk locking washers are assigned by a penetrating the inner diameter of the weir disc Cylinder part are connected to each other in a gas-tight manner the first lock washer in the liquid level of the Drum interior and the second locking disc in the Liquid level of the discharge chamber immersed and thereby formed pressure space with a gas supply channel a gas of variable pressure is applied, whereby a continuous change of the liquid level in the interior of the drum is made possible.
  • the locking disks are arranged stationary.
  • the connection of the pressure room with the fixed gas supply duct is therefore without use a rotating seal possible.
  • the second locking disk is designed as a peeling element.
  • both flat surfaces provide ribs on the weir disc. This will make the centrifugal braking effect of the two locking disks minimized.
  • a further advantageous embodiment is characterized in that the locking disks rotate with the centrifugal drum and a liquid-filled sealing chamber is provided on the radially inward side of the cylinder part, into which a gas guiding channel opens radially inward from the liquid level, a stationary gas supply device with two radially outward-pointing sealing disks is provided, which immerse on both sides of the gas supply channel in the liquid level of the sealing chamber.
  • the friction losses are very low due to the sealing washers immersed in the liquid, since the sealing washers have a much smaller diameter than the locking washers. Since the locking disks rotate themselves, they do not cause any friction losses.
  • the sealing chamber assigned a supply channel for sealing liquid. Through the Adding barrier liquid will make the liquid level maintained in the sealing chamber.
  • the Sealing chamber assigned a drain channel. The sealing chamber this empties when the supply channel is closed. If it is not necessary to influence the liquid level friction losses can be eliminated will.
  • the feed channel is located with the discharge channel of a peeling element in connection.
  • This version is not a special device required for the supply of sealing liquid.
  • the liquid level in the interior of the drum can be opened simple way to keep it at the desired level that the gas supply channel is connected to a gas supply line is in which a pressure control device is provided is.
  • FIG. 1 in FIG. 1 denotes the centrifugal drum, whose drum interior 2 by a weir disk 3 from one Discharge chamber 4 is separated.
  • the two flat surfaces the weir plate 3 are a first locking plate 5 and one assigned second locking disc 6 by a the inner diameter the weir disk 3 penetrating cylinder part 7 gas-tightly connected to one another and arranged in a stationary manner are.
  • the first locking disk 5 is immersed in the liquid level of the drum interior 2 and the second Locking disc 6 in the liquid level of the discharge chamber 4 a.
  • the second locking disk 6 is on a peeling element 8 intended.
  • a Pressure chamber 9 is formed, the gas supply channel 10 and a gas supply line 11 with a not shown Gas pressure source is connected.
  • a pressure control device 12 is provided in the gas supply line 11, a pressure control device 12 is provided.
  • the minimum Liquid level "D” fixed and thus a preselection for the expected adjustment range. This does not close the control range for the gas pressure large.
  • the pressure chamber 9 via the gas supply line 11 and the gas supply channel 10 pressurized. This Pressure is transferred to the liquid that is in the Area of the pressure chamber 9 is located.
  • the liquid level inside the drum moves 2 as far radially inwards until a pressure equilibrium between the corresponding liquids consists.
  • the liquid level in the interior of the drum 2 can thereby correspond to the compensation pressure Liquid level "d” shifted radially inwards be, with no liquid on the discharge device can leak for the solid.
  • the gas pressure is set according to the desired liquid level and also by the pressure control device 12 Inflow fluctuations kept at this level.
  • the locking disks rotate 5 and 6 with the centrifugal drum 1. This eliminates the Fluid friction between the lock washers 5 and 6 and the liquid in the interior of the drum 2 or the discharge chamber 4.
  • a gas supply device 13 with two radially outward-facing sealing washers 14 and 15 provided on both sides of a gas guide channel 16 in the liquid level of a sealing chamber 17 immerse yourself. The gas pressure is transferred in this version from the sealing chamber 17 to the pressure chamber 9 and causes thereby a radially inward shift due to the liquid level "D" in the drum interior 2 of the effect described above.
  • the sealing chamber 17 can also be provided with an outlet channel 25 be through which the sealing chamber 17 when locked Feed channel 18 can empty. If an interference the liquid level is not required, can reduce the friction losses by emptying the sealing chamber 17 can be eliminated.

Landscapes

  • Centrifugal Separators (AREA)

Abstract

La chambre intérieure (2) du tambour de la centrifugeuse décrite est séparée de la chambre d'évacuation (4) par une paroi protectrice (3). Les deux surfaces plates de la paroi (3) sont associées avec une première barrière (5) et une seconde barrière (6) qui sont jointes hermétiquement l'une à l'autre et fixées en place par un élément cylindrique (7) qui passe par le trou de la paroi protectrice (3). La première barrière (5) descend en-dessous du niveau du liquide se trouvant à l'intérieur du tambour et la seconde barrière (6) descend en-dessous du liquide se trouvant à l'intérieur de la chambre d'évacuation (4). Les deux barrières (5 et 6) forment une chambre de pression (9) sur laquelle peut agir un gaz sous pression amené par un canal d'alimentation en gaz (10) et par une conduite d'alimentation en gaz (11), le gaz sous pression faisant déplacer radialement vers l'intérieur le niveau (D) du liquide se trouvant à l'intérieur du tambour. Le liquide peut être amené à n'importe quel niveau entre D et d par variation de la pression du gaz.

Claims (10)

  1. Centrifugeuse à paroi pleine comportant un bol centrifuge (1) destiné à la séparation d'un mélange solides-liquide, l'espace intérieur du bol (2) étant isolé d'une chambre d'évcuation (4) pour le liquide séparé grâce à un déversoir (3) en rotation avec le bol centrifuge (1), le diamètre intérieur de celui-ci affectant le diamètre intérieur du niveau de liquide dans l'espace intérieur du bol (2), caractérisée en ce que les deux surfaces planes du déversoir (3) sont reliées à des disques de barrage (5, 6) qui communiquent l'un avec l'autre de manière étanche aux gaz grâce à un élément cylindrique (7) traversant le diamètre intérieur du déversoir (3), le premier disque de barrage (5) plongeant dans le niveu de liquide dans l'espace intérieur du bol (2) tandis que le second disque de barrage (6) plongedans celui de la chambre d'évcuation (4), et que la chambre de pression (9) ainsi renfermée reçoit une pression de gaz variable à travers un conduit d'injection de gaz (10), ce qui permet un réglage sans à-coups du niveau de liquide dans l'espace intérieur du bol (2).
  2. Centrifugeuse selon revendication 1, caractérisée en ce que les disques de barrage (5, 6) sont stationnaires.
  3. Centrifugeuse selon l'une des revendications 1 ou 2, caractérisée en ce que le second disque de barrage (6) est connu en tant qu'organe de prélèvement (8).
  4. Centrifugeuse selon revendication 1, caractérisée en ce que les surfaces planes du déversoir (3) sont munies de nervures (20, 21).
  5. Centrifugeuse selon revendication 1, caractérisée en ce que les disques de barrage (5, 6) sont en rotation avec le bol centrifuge (1) et que, du côté situé radialement à l'intérieur de l'élément cylindrique (7), il est prévu une chambre d'étanchéité (17) dans laquelle il débouche un conduit de gaz (16) à un endroit situé radialement à l'intérieur du niveau de liquide, étant prévu un dispositif stationnaire d'alimentation de gaz (13) comportant deux disques d'étanchéité (14, 15) orientés radialement vers l'extérieur qui, sur les deux côtés du conduit de gaz (16), plongent dans le niveau de liquide dans la chambre d'étanchéité (17).
  6. Centrifugeuse selon revendication 5, caractérisée en ce que toutes les surfaces planes de la chambre d'étanchéité (17) orientées vers les disques d'étanchéité (14, 15) sont munies de nervures (22, 23, 24).
  7. Centrifugeuse selon l'une des revendications 5 ou 6, caractérisée en ce qu'un canal d'injection de liquide étanchéifiant (18) est attribué à la chambre d'étanchéité (17).
  8. Centrifugeuse selon l'une des revendications 5 à 7, caractérisée en ce que le canal d'injection (18) communique avec un canal d'évacuation (19) de l'organe de prélèvement (8).
  9. Centrifugeuse selon l'une des revendications 5 à 7, caractérisée en ce qu'un canal d'evacuation (25) est attribué à la chambre d'étanchéité (17).
  10. Centrifugeuse selon l'une des revendications 1 à 9, caractérisée en ce que le conduit de gaz (10) communique avec une ligne d'alimentation de gaz (11) comportant un dispositif de réglage de pression (12).
EP95935450A 1995-01-11 1995-10-16 Centrifugeuse a bol plein Expired - Lifetime EP0801593B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19500600 1995-01-11
DE19500600A DE19500600C1 (de) 1995-01-11 1995-01-11 Vollmantelzentrifuge
PCT/EP1995/004054 WO1996021510A1 (fr) 1995-01-11 1995-10-16 Centrifugeuse a bol plein

Publications (2)

Publication Number Publication Date
EP0801593A1 EP0801593A1 (fr) 1997-10-22
EP0801593B1 true EP0801593B1 (fr) 1998-08-05

Family

ID=7751269

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95935450A Expired - Lifetime EP0801593B1 (fr) 1995-01-11 1995-10-16 Centrifugeuse a bol plein

Country Status (6)

Country Link
US (1) US5885202A (fr)
EP (1) EP0801593B1 (fr)
JP (1) JP2980690B2 (fr)
DE (2) DE19500600C1 (fr)
DK (1) DK0801593T3 (fr)
WO (1) WO1996021510A1 (fr)

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19830653C1 (de) * 1998-07-09 1999-11-11 Westfalia Separator Ag Verfahren und Vorrichtung zum Bestimmen des Flüssigkeitsspiegels in einem Dekanter
ATE268644T1 (de) * 2001-02-08 2004-06-15 Westfalia Separator Ag Verfahren zum trennen eines mehrphasengemisches und dekantierzentrifungensystem zur durchführung des verfahrens
DE10143405C2 (de) * 2001-09-05 2003-12-18 Westfalia Separator Ag Schälscheibenvorrichtung zum Ableiten von Flüssigkeit aus einer Zentrifugentrommel
DE10203652B4 (de) * 2002-01-30 2006-10-19 Westfalia Separator Ag Vollmantel-Schneckenzentrifuge mit einem Wehr
DE10220757B4 (de) * 2002-05-08 2004-06-24 Westfalia Separator Ag Zentrifuge, insbesondere Separator
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
DE102005027553A1 (de) * 2005-06-14 2006-12-28 Westfalia Separator Ag Drei-Phasen-Vollmantel-Schneckenzentrifuge und Verfahren zur Regelung des Trennprozesses
CN100372614C (zh) * 2005-11-24 2008-03-05 张家港华大离心机制造有限公司 螺旋卸料过滤离心机
EP1800754A1 (fr) * 2005-12-21 2007-06-27 Jean-Denis Rochat Dispositif jetable de centrifugation sanguine
US8192342B2 (en) 2006-05-11 2012-06-05 Westfalia Separator Ag Separator having a liquid outlet including a throttling device
DK200800555A (en) * 2008-04-16 2009-10-17 Alfa Laval Corp Ab Centrifugal separator
MX2011001714A (es) 2008-08-15 2011-03-30 Mi Llc Centrifuga.
DE102010012276A1 (de) * 2010-03-22 2011-09-22 Gea Westfalia Separator Gmbh Vollmantel-Schneckenzentrifuge
DE102012102478A1 (de) * 2012-03-22 2013-09-26 Hiller Gmbh Vollmantel-Schneckenzentrifuge
ES2807592T3 (es) * 2015-04-24 2021-02-23 Alfa Laval Corp Ab Separador centrífugo y métodos relacionados con el mismo
EP3156134B1 (fr) 2015-10-12 2018-07-25 Alfa Laval Corporate AB Séparateur centrifuge à évacuation intermittente de phase lourde
DE102022100511A1 (de) * 2022-01-11 2023-07-13 Gea Westfalia Separator Group Gmbh Vollmantel-Schneckenzentrifuge und Verfahren zur Regelung des Trennprozesses der Vollmantel-Schneckenzentrifuge

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3179334A (en) * 1961-09-15 1965-04-20 Pennsalt Chemicals Corp Centrifuge discharge means
SE456562B (sv) * 1981-10-22 1988-10-17 Westfalia Separator Ag Centrifug med vertikal vridaxel
DE3344432A1 (de) * 1983-12-08 1985-06-20 Flottweg Bird Mach Gmbh Zentrifuge zur trennung einer suspension mit zwei getrennt abzufuehrenden fluessigkeitsphasen
DE3728901C1 (en) * 1987-08-29 1988-11-17 Westfalia Separator Ag Weir for adjusting the level of liquid in solid-bowl centrifuge drums of worm centrifuges
DE4014552C1 (fr) * 1990-05-07 1991-07-18 Westfalia Separator Ag, 4740 Oelde, De
DE4104483A1 (de) * 1991-02-14 1992-08-20 Kloeckner Humboldt Deutz Ag Verfahren zum betreiben einer schneckenzentrifuge und zentrifuge hierfuer
DE4126565C1 (en) * 1991-08-10 1992-11-12 Westfalia Separator Ag, 4740 Oelde, De Centrifuge drum for solids-liq. sepn.

Also Published As

Publication number Publication date
JPH10507684A (ja) 1998-07-28
DE19500600C1 (de) 1996-02-08
JP2980690B2 (ja) 1999-11-22
DE59503096D1 (de) 1998-09-10
DK0801593T3 (da) 1999-05-03
US5885202A (en) 1999-03-23
WO1996021510A1 (fr) 1996-07-18
EP0801593A1 (fr) 1997-10-22

Similar Documents

Publication Publication Date Title
EP0801593B1 (fr) Centrifugeuse a bol plein
DE68908159T2 (de) Zentrifugalabscheider.
DE3601814C2 (fr)
DE2701624C2 (de) Kontinuierlich arbeitende Schleudertrommel zum Konzentrieren auspendierter Feststoffe
DE4320265C2 (de) Wehr für Vollmantelschleudertrommeln
DE3752166T2 (de) Betriebssystem für zentrifugalabscheidevorrichtung
DE3803762A1 (de) Zentrifuge
DE1432760C2 (de) Schlammzentrifuge mit intermittierendem Schlammaustrag
DE3728901C1 (en) Weir for adjusting the level of liquid in solid-bowl centrifuge drums of worm centrifuges
DE69825261T2 (de) Zentrifuge mit Mittelachse E
DE3209089A1 (de) Dichtungsmechanismus einer drehbaren retorte mit integrierten lagern
CH615843A5 (fr)
EP0392441B1 (fr) Armature d'arrêt à mixture
DE3811619C1 (fr)
DE3606522C1 (de) Schleudertrommel einer Zentrifuge fuer das Klaeren oder Trennen von Fluessigkeitsgemischen
DE2852628C2 (fr)
DE2024726A1 (de) Schlammabsticheinrichtung fur einen Zentrifugalabscheider
DE4436459C2 (de) Schleudertrommel
DE69211253T2 (de) Mischvorrichtung für Fluide
DE69213176T2 (de) Proportional-Drucksteuerventil
DE4126565C1 (en) Centrifuge drum for solids-liq. sepn.
DE2031804C3 (de) Drucksteuerventil
DE3636034C1 (en) Centrifugal drum of a centrifuge for the clarifying and separating of liquid mixtures
DE4026952C1 (en) Sepn. and classification of solids - involves centrifuge with slide control system
EP0149151A1 (fr) Dispositif pour accélérer la réaction entre deux milieux réagissant dans un lit fluidifié

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: 19970516

AK Designated contracting states

Kind code of ref document: A1

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

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

17Q First examination report despatched

Effective date: 19980126

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

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

REF Corresponds to:

Ref document number: 59503096

Country of ref document: DE

Date of ref document: 19980910

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

Effective date: 19981216

REG Reference to a national code

Ref country code: DK

Ref legal event code: T3

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
REG Reference to a national code

Ref country code: GB

Ref legal event code: IF02

REG Reference to a national code

Ref country code: DE

Ref legal event code: R081

Ref document number: 59503096

Country of ref document: DE

Owner name: GEA MECHANICAL EQUIPMENT GMBH, DE

Free format text: FORMER OWNER: WESTFALIA SEPARATOR AG, 59302 OELDE, DE

Effective date: 20140507

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

Ref country code: DK

Payment date: 20141022

Year of fee payment: 20

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

Ref country code: SE

Payment date: 20141022

Year of fee payment: 20

Ref country code: GB

Payment date: 20141022

Year of fee payment: 20

Ref country code: DE

Payment date: 20141023

Year of fee payment: 20

Ref country code: FR

Payment date: 20141021

Year of fee payment: 20

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

Ref country code: NL

Payment date: 20141020

Year of fee payment: 20

REG Reference to a national code

Ref country code: DE

Ref legal event code: R071

Ref document number: 59503096

Country of ref document: DE

REG Reference to a national code

Ref country code: DK

Ref legal event code: EUP

Effective date: 20151016

REG Reference to a national code

Ref country code: NL

Ref legal event code: MK

Effective date: 20151015

REG Reference to a national code

Ref country code: GB

Ref legal event code: PE20

Expiry date: 20151015

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: GB

Free format text: LAPSE BECAUSE OF EXPIRATION OF PROTECTION

Effective date: 20151015