EP2627452B1 - Procédé de séparation des phases d'un produit à l'aide d'une centrifugeuse - Google Patents

Procédé de séparation des phases d'un produit à l'aide d'une centrifugeuse Download PDF

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Publication number
EP2627452B1
EP2627452B1 EP11767697.3A EP11767697A EP2627452B1 EP 2627452 B1 EP2627452 B1 EP 2627452B1 EP 11767697 A EP11767697 A EP 11767697A EP 2627452 B1 EP2627452 B1 EP 2627452B1
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EP
European Patent Office
Prior art keywords
phase
liquid phase
heavier
drum
heavier liquid
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.)
Active
Application number
EP11767697.3A
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German (de)
English (en)
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EP2627452A1 (fr
Inventor
Wilfried Mackel
Klaus-Peter Eickhoff
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GEA Mechanical Equipment GmbH
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GEA Mechanical Equipment GmbH
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Priority to PL11767697T priority Critical patent/PL2627452T3/pl
Publication of EP2627452A1 publication Critical patent/EP2627452A1/fr
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    • 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
    • B04B11/02—Continuous feeding or discharging; Control arrangements therefor
    • 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
    • B04B1/14—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 with periodical discharge
    • 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
    • B04B11/04—Periodical feeding or discharging; Control arrangements therefor
    • 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

Definitions

  • the invention relates to a method for processing a product by means of a phase separation according to the preamble of claim 1.
  • the technological background is the generic WO 86/01436 , the DE 10 2005 021 331 A1 , the DE 697 12 569 T2 and the WO 94/06 565 A1 called.
  • the DE 10 2005 021 331 A1 Although shows a Trennseparator. Here, however, the derivation of a heavier liquid phase via an outlet, which is associated with a throttle device and only the derivation of a lighter liquid phase by means of a paring disc.
  • the WO 94/06 565 A1 discloses a Trennseparator in which the lighter liquid phase by means of a paring disc and the other heavy liquid phase by means of a discharge by means of obliquely adjustable to the radial tubes that are adjusted once to a desired radius, so that in operation always the derivation of this phase takes place, but so in that only part of the tubes are immersed in the heavy phase, which should keep the friction low.
  • the DE 697 12 569 T2 discloses a Trennseparator, in which the lighter liquid phase by means of a baffle plate and the other heavy liquid phase by means of an outlet member which is pressed with a drive device to varying locations of a free liquid surface, so that in operation also always the derivation of this phase takes place, where possible the Immersion depth should be kept constant in this phase to reduce energy consumption.
  • the invention has the object to solve this problem in a simple manner.
  • the invention solves this problem by the subject matter of claim 1, that is, with simple means and with a very simple method.
  • the heavier phase can always accumulate farther out in the drum until it is possible to remove that amount of heavier phase from the drum. Then the derivative is interrupted for a certain period of time, until again a sufficient amount of has collected heavy liquid phase outside of the drum to drain it out of the drum.
  • the solid phase can likewise be ejected discontinuously from the drum, preferably by means of solids discharge openings which can be displaced by a piston slide, preferably independently of the emptying of the heavy liquid phase.
  • the process according to the invention can be used particularly advantageously in the processing of vegetable or animal oils and fats, which have only a relatively small proportion of heavy phase, in particular less than 3%.
  • Fig.1 shows a per se, continuously operating separator drum 1, which has a vertically oriented axis of rotation at the radius r 0 .
  • the rotatable separator drum 1 is set on a rotary spindle 2, e.g. is driven directly or via a belt and which is rotatably mounted (not shown here).
  • the rotary spindle 2 may be designed conically in its upper peripheral region.
  • the separator drum 1 is surrounded by a stationary hood 3 that does not rotate with the drum.
  • constructions are also known in which a lower drum is quasi “suspended" on an upper rotary spindle. Again, however, the drum is rotatably mounted oscillating only at one of its ends or subsequent to one of its axial ends.
  • the advantageous double-conical separator drum 1 has a product feed pipe 4 for a product P to be hurled, to which a distributor 5 adjoins, which is provided with at least one or more outlet openings 6, through which incoming centrifuged material into the interior of the separator drum 1 and at least one riser channel 7 of the plate package can be passed.
  • a supply line through the spindle, for example, from below is also conceivable.
  • the construction is chosen such that the outlet openings 6 below a riser channel 7 in a plate package 8 of conically shaped separating plates (not shown).
  • the plate package 8 is closed by a separator plate 9, which has a larger diameter than the plate package eighth
  • a separation zone between a lighter liquid phase LP and a heavier liquid phase HP is formed during operation with a corresponding rotation of the drum at a certain radius - the emulsion line or separation line (also called E line) ,
  • the solid phase is designated S. It is discharged discontinuously through solids discharge openings 10, which can be discontinuously opened and closed by means of a piston slide 11.
  • the lighter liquid phase LP (light phase) is conducted at an inner radius r LP into a peeling chamber 12 and from there by means of a first peeling member, a peeling disk 13 (also called a gripper), out of the drum.
  • the paring disc acts like a pump.
  • the peeling disc may e.g. be downstream of the separator in the downstream derivative of a valve (not shown here) for throttling.
  • the inlet 14 in the paring disc 13 is located on a fixed diameter, which is not adjustable.
  • the heavy phase HP flows around the outer circumference of the divider plate 9 through a discharge channel 15 into a second peeling chamber 15, in which a second peeling element 16 is arranged.
  • This peeling member is designed such that its inlet or its inlet opening 17 within the peeling chamber is continuously or discontinuously adjustable (see also Fig. 2 ), so that at least a first inner radius Ri and an outer radius Ra in the drum can be achieved.
  • the second peeling member 16 is designed as a peeling tube, which in section the Fig. 1 L-shaped and has a first portion 18 which is radially aligned in the peeling chamber and a second, parallel to the rotation axis D aligned portion 19, which is guided upward from the rotating system, wherein the Section 19 is rotatable about its longitudinal axis on the radius r19.
  • a pivoting of the peeling tube 18 about this axis of rotation r19 allows the inlet 17 between the mentioned inner radius Ri (dashed line in FIG Fig. 2 ) and the outer radius Ra to pivot (not dashed line in FIG Fig. 2 ).
  • a device for pivoting the peeling tube is arranged outside the separator.
  • the pivoting per se can be realized in a variety of ways, such as by means of a gear transmission, a lever mechanism or by means of a hydraulic or pneumatic drive.
  • a toothed segment 20 may be formed on the outer pipe diameter, which meshes with a drive gear 21 of a transmission, which is otherwise not shown, to which an electric motor (not shown) is connected upstream.
  • the drive and the gear connection to the peeling member can also be realized in other ways.
  • the above-described three-phase Trennseparator with the drum 1 with a vertical axis of rotation is suitable for the separation of various fluid mixtures such as for the separation of water from oil.
  • Trennseparatoren occur problems with the continuous discharge of the heavier phase, especially if only very small volume flows of this phase are to be processed or if the proportion of the heavier phase relative to the lighter phase is very low, for example, if the proportion of heavier phase on the incoming product less than 3%, preferably less than 1%, most preferably 0.5%.
  • This problem is solved by means of the illustrated Trennseparators in that the heavier liquid phase Hp is discharged only discontinuously.
  • the adjustable second peeling member 16 is set in a first step i) on such a small radius Ri or - if it is not already placed on this inner radius - that not immersed in the heavy phase HP during operation.
  • the heavy phase - such as water in the separation of water and oil - accumulates outside in the drum 1, so that the radius to which the heavier phase, especially the water, extends in the drum 1 from outside to inside goes up.
  • the inlet 17 of the peeling member 16 in a step ii) on a larger radius Ra is adjusted so that it dips into the heavier liquid phase HP, so that the heavier liquid phase HP is discharged from the drum 1.
  • the maximum radius up to which the heavier liquid phase HP extends in the drum 1 continues to increase radially relative to the rotation axis D to the outside.
  • the inlet 17 is again pivoted to one, preferably the inner radius Ri from step i), so that again according to step i) the discharge of the heavier phase HP is interrupted.
  • the timing of skimming the heavy phase may also be controlled via timing and may be particularly simple, for example, at fixed intervals.
  • the time of skimming by means of a sensing and / or measurement can be carried out (in this respect would be particularly advantageous: a contact pressure gauge, a flow meter, a water sensor in the process).

Landscapes

  • Centrifugal Separators (AREA)

Claims (8)

  1. Procédé pour le traitement d'un produit au moyen d'une séparation de phases en au moins deux phases liquides en relation avec une clarification supplémentaire pour éliminer les solides,
    a. dans lequel la séparation du produit s'effectue dans une centrifugeuse fonctionnant en continu, conçue comme un séparateur possédant un tambour rotatif (3) avec un axe de rotation (D) vertical dans lequel est disposé un paquet de disques de séparation avec des canaux montants et avec un tuyau d'arrivée de produit (4) et au moins deux organes racleurs (13, 16) pour évacuer une phase liquide plus légère et une autre plus lourde du tambour et avec des ouvertures d'évacuation des solides (10) pour l'évacuation d'une phase solide hors du tambour, une zone de séparation se formant dans la centrifugeuse entre les phases liquides plus légère et plus lourde (HP, LP),
    b. dans lequel la phase liquide plus légère (LP) est évacuée en continu hors du tambour (1) et la phase liquide plus lourde (HP) et la phase solide de façon discontinue,
    caractérisé en ce que,
    c. en vue de l'évacuation discontinue de la phase liquide plus lourde, l'organe racleur (16) est déplacé sur différents rayons (Ri, Ra) pour évacuer la phase plus lourde,
    d. l'organe racleur déplaçable (16) étant ajusté dans une première étape i) sur un rayon suffisamment petit ou, s'il n'est pas déjà placé sur ce rayon intérieur, de telle manière que son ouverture d'entrée (17) ne plonge pas, en fonctionnement, dans la phase liquide lourde (HP), de sorte que la phase liquide plus lourde s'accumule vers l'extérieur dans le tambour, le rayon jusqu'auquel parvient la phase liquide plus lourde dans le tambour augmentant de l'extérieur vers l'intérieur, et de sorte que, lorsque la phase liquide plus lourde est montée jusqu'à un rayon intérieur où elle atteint l'entrée (17) de l'organe racleur (16), l'entrée (17) de l'organe racleur soit réglée au cours d'une étape ii) à un plus grand rayon, de sorte que l'entrée (17) plonge dans la phase liquide plus lourde et que la phase liquide lourde puisse ainsi être évacuée hors du tambour (1).
  2. Procédé selon la revendication 1, caractérisé en ce que la part de la phase plus lourde dans le produit traité est relativement réduite par rapport à celle de la phase plus légère.
  3. Procédé selon la revendication 1 ou 2, caractérisé en ce que la phase liquide plus lourde (HP) et la phase solide sont évacuées de façon discontinue hors du tambour (1) à des moments différents.
  4. Procédé selon l'une des revendications précédentes, caractérisé en ce qu'après l'évacuation de la phase liquide plus lourde, l'entrée (17) de l'organe racleur mobile (16) est ramenée sur un rayon intérieur, de sorte que l'évacuation de la phase plus lourde est à nouveau interrompue comme dans la phase i).
  5. Procédé selon la revendication 4, caractérisé en ce qu'après l'évacuation de la phase liquide plus lourde, quand la phase liquide plus lourde atteint un certain rayon extérieur, l'entrée (17) de l'organe racleur mobile (16) est ramenée sur un rayon intérieur, de sorte que l'évacuation de la phase plus lourde est à nouveau interrompue comme dans la phase i).
  6. Procédé selon l'une des revendications précédentes, caractérisé en ce qu'après l'évacuation de la phase liquide plus lourde, après l'écoulement d'un laps de temps prédéterminé, l'entrée (17) de l'organe racleur mobile (16) est ramenée sur un rayon intérieur, de sorte que l'évacuation de la phase plus lourde est à nouveau interrompue comme dans la phase i).
  7. Procédé selon l'une des revendications précédentes, caractérisé en ce que le produit traité est un mélange d'huile, d'eau et de solides.
  8. Procédé selon l'une des revendications précédentes, caractérisé en ce que la part de la phase plus lourde dans le produit entrant est inférieure à 3 %, de préférence inférieure à 1 %.
EP11767697.3A 2010-10-14 2011-10-10 Procédé de séparation des phases d'un produit à l'aide d'une centrifugeuse Active EP2627452B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL11767697T PL2627452T3 (pl) 2010-10-14 2011-10-10 Sposób oddzielania faz produktu przy użyciu wirówki

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102010038195A DE102010038195A1 (de) 2010-10-14 2010-10-14 Verfahren zur Phasentrennung eines Produktes mit einer Zentrifuge
PCT/EP2011/067640 WO2012049119A1 (fr) 2010-10-14 2011-10-10 Procédé de séparation des phases d'un produit à l'aide d'une centrifugeuse

Publications (2)

Publication Number Publication Date
EP2627452A1 EP2627452A1 (fr) 2013-08-21
EP2627452B1 true EP2627452B1 (fr) 2018-07-25

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ID=44785854

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EP11767697.3A Active EP2627452B1 (fr) 2010-10-14 2011-10-10 Procédé de séparation des phases d'un produit à l'aide d'une centrifugeuse

Country Status (12)

Country Link
US (1) US9463473B2 (fr)
EP (1) EP2627452B1 (fr)
CN (1) CN103153474B (fr)
AR (1) AR083335A1 (fr)
BR (1) BR112013009009B1 (fr)
DE (1) DE102010038195A1 (fr)
DK (1) DK2627452T3 (fr)
ES (1) ES2692825T3 (fr)
PL (1) PL2627452T3 (fr)
PT (1) PT2627452T (fr)
RU (1) RU2573875C2 (fr)
WO (1) WO2012049119A1 (fr)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2939747B1 (fr) 2014-04-30 2016-08-03 Alfa Laval Corporate AB Séparateur centrifuge
EP2939746B1 (fr) 2014-04-30 2016-09-07 Alfa Laval Corporate AB Séparateur centrifuge
CN106076664B (zh) * 2016-05-30 2018-11-06 中国石油大学(华东) 一种多管式离心固液分离机
DE102016115557A1 (de) 2016-08-22 2018-02-22 Gea Mechanical Equipment Gmbh Zentrifuge mit einer Schälscheibe
EP3586972B1 (fr) * 2018-06-25 2020-12-02 Alfa Laval Corporate AB Séparateur centrifuge
NL2023341B1 (en) * 2019-06-19 2021-01-28 Evodos B V Centrifugal separator, method for separating liquid fractions

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5788622A (en) * 1996-01-29 1998-08-04 Alfa-Laval Ab Outlet device and a centrifugal separator provided with such an outlet device

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DK410284A (da) * 1984-08-28 1986-03-01 Alfa Laval Zeta As Fremgangsmaade til styring af graensefladen mellem olie og vand ved slamudtoemning fra en centrifuge til separering af olie og vand og slam
SE500414C2 (sv) * 1992-09-21 1994-06-20 Alfa Laval Separation Ab Centrifugalseparator med stationärt utmatningsorgan
SE521432C2 (sv) * 1999-06-03 2003-11-04 Alfa Laval Corp Ab Sätt att ställa in ett gränsskikts radiella nivå i en centrifugalseparator
RU2262989C2 (ru) * 2003-09-12 2005-10-27 Старокожев Виктор Алексеевич Сепаратор для разделения эмульсий
RU2262990C2 (ru) * 2003-10-08 2005-10-27 Старокожев Виктор Алексеевич Герметический сепаратор для разделения эмульсий
RU2283698C2 (ru) 2004-07-06 2006-09-20 Открытое акционерное общество Научно-исследовательский технологический институт "НИТИ-ТЕСАР" Шнековая центрифуга
DE102005021331A1 (de) * 2005-05-04 2006-11-09 Westfalia Separator Ag Drei-Phasen-Trennseparator mit einer Schälscheibe und Feststoffaustragsöffnungen
US8192342B2 (en) * 2006-05-11 2012-06-05 Westfalia Separator Ag Separator having a liquid outlet including a throttling device
DE202007009212U1 (de) * 2007-06-30 2008-12-11 Gea Westfalia Separator Gmbh Drei-Phasen-Trennseparator

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5788622A (en) * 1996-01-29 1998-08-04 Alfa-Laval Ab Outlet device and a centrifugal separator provided with such an outlet device

Also Published As

Publication number Publication date
RU2573875C2 (ru) 2016-01-27
WO2012049119A1 (fr) 2012-04-19
RU2013120494A (ru) 2014-11-20
DK2627452T3 (en) 2018-10-29
US20140051563A1 (en) 2014-02-20
PL2627452T3 (pl) 2018-11-30
CN103153474B (zh) 2014-09-03
AR083335A1 (es) 2013-02-21
DE102010038195A1 (de) 2012-04-19
EP2627452A1 (fr) 2013-08-21
US9463473B2 (en) 2016-10-11
PT2627452T (pt) 2018-10-25
ES2692825T3 (es) 2018-12-05
CN103153474A (zh) 2013-06-12
BR112013009009A2 (pt) 2020-10-27
BR112013009009B1 (pt) 2021-06-22

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