EP2627451B1 - Phase-separation method for a product, using a centrifuge - Google Patents

Phase-separation method for a product, using a centrifuge Download PDF

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Publication number
EP2627451B1
EP2627451B1 EP11767014.1A EP11767014A EP2627451B1 EP 2627451 B1 EP2627451 B1 EP 2627451B1 EP 11767014 A EP11767014 A EP 11767014A EP 2627451 B1 EP2627451 B1 EP 2627451B1
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EP
European Patent Office
Prior art keywords
liquid phase
heavier liquid
phase
drum
discharging
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EP11767014.1A
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German (de)
French (fr)
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EP2627451A1 (en
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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    • 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
    • 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
    • B04B11/02—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
    • B04B11/00—Feeding, charging, or discharging bowls
    • B04B11/08—Skimmers or scrapers for discharging ; Regulating thereof
    • B04B11/082—Skimmers for discharging liquid
    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11B—PRODUCING, e.g. BY PRESSING RAW MATERIALS OR BY EXTRACTION FROM WASTE MATERIALS, REFINING OR PRESERVING FATS, FATTY SUBSTANCES, e.g. LANOLIN, FATTY OILS OR WAXES; ESSENTIAL OILS; PERFUMES
    • C11B3/00—Refining fats or fatty oils
    • C11B3/16—Refining fats or fatty oils by mechanical means

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 will be 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 radial tubes that are set once to a desired radius, so that in operation always takes place, this phase, but so that only a part of the tube dips into 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.
  • Trennseparatoren In the operation of Trennseparatoren occur problems with the continuous derivation of the heavier phase, especially when the heavier liquid phase is such that its viscosity can increase greatly in operation at a time can not be determined precisely.
  • Such an effect occurs, for example, in the processing of vegetable and animal oils and fats, such as in the separation of Soapstock or mucilage (phosphatides).
  • the invention has the object to solve this problem of separation in a simple manner.
  • the invention solves this problem by the subject matter of claim 1, that is, by simple means and with a very simple method in that when the viscosity of the heavier liquid phase Hp increases significantly, the inlet of the peeling member for the heavier liquid phase to a larger diameter is pivoted to divert the accumulated liquid phase of increased viscosity to a radius lying farther out in the drum. After deriving the highly compacted liquid to the radius set with the associated peeling member, the peeling member is adjusted to derive the heavier liquid phase again to a smaller radius.
  • Fig.1 shows a Separatortrommel 1, which has a vertically oriented axis of rotation at the radius r 0 .
  • the rotatable Separatortrommel 1 is set to a rotary spindle 2, which is driven for example directly or via a belt and which is rotatably mounted (not shown here).
  • the rotary spindle 2 can be conical in its upper peripheral region be designed.
  • 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 here advantageously double conical separator drum 1 has a Fernzulaufrohr.4 for a product to be hurled P, which is followed by a manifold 5, which is provided with at least one or more outlet openings 6, by which incoming centrifugal (cross hatching) in the interior the Separatortrommel 1 and at least one rising channel 7 of the plate package can be passed.
  • a feed through the spindle e.g. from below is also possible.
  • 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 launched from a divider 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 paring disc is outside of the Separators in the downstream derivative of a valve (not shown here) downstream of the 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 scraping chamber 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 a second 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 portion 19 about its longitudinal axis on the Radius r19 is rotatable.
  • 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 ).
  • the pivoting per se can be realized in a variety of ways, such as by means of a gear transmission.
  • 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 product to be processed is such that the viscosity of a heavier liquid phase Hp can unexpectedly change, in particular significantly increase, during operation, clogging and blocking of the drum can be counteracted by the inlet of the peeling member for the heavier liquid phase is pivoted to a larger diameter, in order to derive the compacted heavier liquid phase to a radius lying farther out in the drum.
  • the peeling member is moved to derive the heavier liquid phase back to a smaller Ri.
  • the second peeling element is adjusted to the larger radius mentioned.

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  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Microbiology (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Wood Science & Technology (AREA)
  • Organic Chemistry (AREA)
  • Centrifugal Separators (AREA)
  • Fats And Perfumes (AREA)

Description

Die Erfindung betrifft ein Verfahren zur Verarbeitung eines Produktes mittels einer Phasentrennung nach dem Oberbegriff des Anspruchs 1.The invention relates to a method for processing a product by means of a phase separation according to the preamble of claim 1.

Zum technologischen Hintergrund werden die DE 10 2005 021 331 A1 , die DE 697 12 569 T2 und die WO 94/ 06 565 A1 genannt. Die DE 10 2005 021 331 A1 zeigt zwar einen Trennseparator. Hier erfolgt aber die Ableitung einer schwereren Flüssigkeitsphase über einen Auslass, dem eine Drosseleinrichtung zugeordnet ist und nur die Ableitung einer leichteren Flüssigkeitsphase mittels einer Schälscheibe. Die WO 94/ 06 565 A1 offenbart einen Trennseparator, bei dem bei dem die leichtere Flüssigkeitsphase mittels einer Schälscheibe und die andere schwere Flüssigkeitsphase mittels einer Ableitvorrichtung mittels schräg zur Radialen verstellbaren Röhrchen erfolgt, die einmalig auf einen gewünschten Radius eingestellt werden, so dass im Betrieb stets die Ableitung dieser Phase erfolgt, aber derart, dass nur ein Teil der Röhrchen in die schwere Phase eintaucht, was die Reibung gering halten soll. Die DE 697 12 569 T2 offenbart einen Trennseparator, bei dem die leichtere Flüssigkeitsphase mittels einer Stauscheibe und die andere schwere Flüssigkeitsphase mittels einem Auslasselement erfolgt, welches mit einer Antriebsvorrichtung an variierende Orte einer freien Flüssigkeitsfläche gedrückt wird, so dass im Betrieb ebenfalls stets die Ableitung dieser Phase erfolgt, wobei möglichst die Eintauchtiefe in diese Phase zur Verringerung des Energieverbrauchs konstant gehalten werden soll. Nach der DE 103 61 520 B2 werden bei der Verarbeitung von Milch Blockagen in den Durchflusswegen durch ein zeitweises Verschieben der Trennzone zwischen Magermilch und Rahm durch Androsseln eines Ventils oder durch Erhöhen der Zulaufleistung verhindert.The technological background will be 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 radial tubes that are set once to a desired radius, so that in operation always takes place, this phase, but so that only a part of the tube dips into 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. After DE 103 61 520 B2 In the processing of milk blockages in the flow paths are prevented by a temporary shifting of the separation zone between skimmed milk and cream by throttling a valve or by increasing the feed rate.

Beim Betrieb von Trennseparatoren treten Probleme mit der kontinuierlichen Ableitung der schwereren Phase insbesondere dann auf, wenn die schwerere Flüssigkeitsphase derart beschaffen ist, dass sich ihre Viskosität im Betrieb an einem zeitlich nicht genau bestimmbaren Moment stark erhöhen kann.In the operation of Trennseparatoren occur problems with the continuous derivation of the heavier phase, especially when the heavier liquid phase is such that its viscosity can increase greatly in operation at a time can not be determined precisely.

Ein derartiger Effekt tritt beispielsweise bei der Verarbeitung von pflanzlichen und tierischen Ölen und Fetten auf, so bei der Abtrennung von Soapstock oder Schleimstoffen (Phosphatide).Such an effect occurs, for example, in the processing of vegetable and animal oils and fats, such as in the separation of Soapstock or mucilage (phosphatides).

Diese Begleitstoffe setzen die Haltbarkeit von Ölen und Fetten stark herab und sollen daher abgetrennt werden. Es gibt hydratisierbare und nicht hydratisierbare Phosphatide. Die Begleitstoffe werden entfernt, indem man sie Säuren, Laugen, Wasser und/oder weiteren Stoffen geeignet behandelt und hydratisiert. Dadurch verlieren sie ihren lipophilen Charakter, werden ölunlöslich, fallen aus dem Öl aus und können derart vorbehandelt im Separator abgetrennt werden.These accompanying substances greatly reduce the shelf life of oils and fats and are therefore to be separated. There are hydratable and non-hydratable phosphatides. The accompanying substances are removed by adding acids, lyes, Water and / or other substances suitably treated and hydrated. As a result, they lose their lipophilic character, become oil-insoluble, precipitate out of the oil and can be separated in pretreated form in the separator.

Die Erfindung hat die Aufgabe, dieses Problem der Abtrennung auf einfache Weise zu lösen.The invention has the object to solve this problem of separation in a simple manner.

Die Erfindung löst diese Aufgabe durch den Gegenstand des Anspruchs 1, also mit einfachen Mitteln und mit einem sehr einfachen Verfahren dadurch, dass dann, wenn sich die Viskosität der schwereren Flüssigkeitsphase Hp deutlich erhöht, der Einlass des Schälorgans für die schwerere Flüssigkeitsphase auf einen größeren Durchmesser verschwenkt wird, um die angesammelte Flüssigkeitsphase erhöhter Viskosität bis auf einen weiter außen in der Trommel liegenden Radius abzuleiten. Nach dem Ableiten der hoch kompaktierten Flüssigkeit bis auf den mit dem zugehörigen Schälorgan eingestellten Radius wird das Schälorgan zum Ableiten der schwereren Flüssigkeitsphase wieder auf einen kleineren Radius verstellt.The invention solves this problem by the subject matter of claim 1, that is, by simple means and with a very simple method in that when the viscosity of the heavier liquid phase Hp increases significantly, the inlet of the peeling member for the heavier liquid phase to a larger diameter is pivoted to divert the accumulated liquid phase of increased viscosity to a radius lying farther out in the drum. After deriving the highly compacted liquid to the radius set with the associated peeling member, the peeling member is adjusted to derive the heavier liquid phase again to a smaller radius.

Als Indikator für den Anstieg der Viskosität in der schwereren Flüssigkeitsphase kann der sich verändernde Zulaufdruck im Produktzulauf ermittelt werden oder der Ablaufdruck der leichteren Flüssigkeitsphase übersteigt dieser einen Schwellwert oder ist der Gradient des Zulauf- oder Ablaufdrucks zu groß, wird das zweite Schälorgan auf den erwähnten größeren Radius verstellt.
Weitere vorteilhafte Ausgestaltungen sind den übrigen Unteransprüchen zu entnehmen.As an indicator of the increase in viscosity in the heavier liquid phase of the changing feed pressure in the product feed can be determined or the discharge pressure of the lighter liquid phase exceeds this threshold or the gradient of the inlet or outlet pressure is too large, the second peeler on the aforementioned larger Radius adjusted.
Further advantageous embodiments can be found in the remaining subclaims.

Nachfolgend wird die Erfindung anhand eines Ausführungsbeispiels unter Bezug auf die Zeichnung näher beschrieben. Es zeigt:

Fig. 1
einen Schnittansicht einer schematisch dargestellten Separatortrommel mit einer Haube; und
Fig. 2
eine schematische Darstellung eines Verschwenken eines Schälorgans auf verschiedene Durchmesser. V
The invention will be described with reference to an embodiment with reference to the drawings. It shows:
Fig. 1
a sectional view of a separator drum shown schematically with a hood; and
Fig. 2
a schematic representation of a pivoting of a peeling member to different diameters. V

Fig.1 zeigt eine Separatortrommel 1, die eine vertikal ausgerichtete Drehachse am Radius r0 aufweist. Fig.1 shows a Separatortrommel 1, which has a vertically oriented axis of rotation at the radius r 0 .

Die drehbare Separatortrommel 1 ist auf eine Drehspindel 2 gesetzt, die z.B. direkt oder über einen Riemen angetrieben wird und die drehbar gelagert ist (hier nicht dargestellt). Die Drehspindel 2 kann in ihrem oberen Umfangsbereich konisch ausgestaltet sein. Die Separatortrommel 1 ist von einer sich nicht mit der Trommel drehenden, stillstehenden Haube 3 umgeben.The rotatable Separatortrommel 1 is set to a rotary spindle 2, which is driven for example directly or via a belt and which is rotatably mounted (not shown here). The rotary spindle 2 can be conical in its upper peripheral region be designed. The separator drum 1 is surrounded by a stationary hood 3 that does not rotate with the drum.

Neben dieser Art der Konstruktion sind auch Konstruktionen bekannt, bei denen eine untere Trommel an einer oberen Drehspindel quasi "aufgehängt" ist. Auch hier wird die Trommel aber nur an einem ihrer Enden bzw. im Anschluss an eines ihrer axialen Enden drehbar pendelnd gelagert.In addition to this type of construction, 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.

Die hier vorteilhaft doppelt konische Separatortrommel 1 weist ein Produktzulaufrohr.4 für ein zu schleuderndes Produkt P auf, an das sich ein Verteiler 5 anschließt, welcher mit wenigstens einer oder mehreren Austrittsöffnungen 6 versehen ist, durch welche zulaufendes Schleudergut (gekreuzte Schraffur) in das Innere der Separatortrommel 1 und wenigstens einen Steigekanal 7 des Tellerpakets geleitet werden kann. Eine Zuleitung durch die Spindel z.B. von unten ist ebenfalls denkbar.The here advantageously double conical separator drum 1 has a Produktzulaufrohr.4 for a product to be hurled P, which is followed by a manifold 5, which is provided with at least one or more outlet openings 6, by which incoming centrifugal (cross hatching) in the interior the Separatortrommel 1 and at least one rising channel 7 of the plate package can be passed. A feed through the spindle e.g. from below is also possible.

Hier ist die Konstruktion derart gewählt, dass die Austrittsöffnungen 6 unterhalb eines Steigekanals 7 in einem Tellerpaket 8 aus konisch geformten Trenntellern (nicht dargestellt) liegen.Here, 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).

Nach oben wird das Tellerpaket 8 von einem Scheideteller 9 abgeschossen, der einen größeren Durchmesser aufweist als das Tellerpaket 8.At the top, the plate package 8 is launched from a divider plate 9, which has a larger diameter than the plate package eighth

Innerhalb des Trenntellerpaktes und dort vorzugsweise innerhalb des Steigekanals 7 bildet sich im Betrieb bei einer entsprechenden Rotation der Trommel an einem bestimmten Radius - der Emulsionslinie oder Trennlinie (auch E-Linie genannt) - eine Trennzone zwischen einer leichteren Flüssigkeitsphase LP und einer schwereren Flüssigkeitsphase HP aus.Within the separator plate pact, and preferably within the riser channel 7, 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) ,

Die Feststoffphase ist mit S bezeichnet. Sie wird diskontinuierlich durch Feststoffaustragsöffnungen 10 abgeleitet, welche diskontinuierlich mit Hilfe eines Kolbenschiebers 11 geöffnet und geschlossen werden können.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.

Die leichtere Flüssigkeitsphase LP (light phase) wird an einem inneren Radius rLP mit in eine Schälkammer 12 und von dort mit Hilfe eines ersten Schälorgans, einer Schälscheibe 13 (auch Greifer genannt), aus der Trommel geleitet.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.

Mit Hilfe des durch die Rotationsenergie der Flüssigkeit entstehenden Staudrucks wirkt die Schälscheibe wie eine Pumpe. Der Schälscheibe ist z.B. außerhalb des Separators in deren nachgeschalteter Ableitung ein Ventil (hier nicht dargestellt) zur Androsselung nachgeschaltet.With the help of the dynamic pressure created by the rotational energy of the fluid, the paring disc acts like a pump. The paring disc is outside of the Separators in the downstream derivative of a valve (not shown here) downstream of the throttling.

Der Einlass 14 in die Schälscheibe 13 liegt auf einem festen Durchmesser, der nicht verstellbar ist.The inlet 14 in the paring disc 13 is located on a fixed diameter, which is not adjustable.

Die schwere Flüssigkeitsphase HP (heavy phase) strömt dagegen um den äußeren Umfang des Scheidetellers 9 herum durch einen Ableitungskanal 15 in eine zweite Schälkammer 15, in welcher ein zweites SchälorgAn 16 angeordnet ist.By contrast, the heavy phase HP (heavy phase) 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 scraping chamber 16 is arranged.

Dieses Schälorgan ist derart ausgebildet, dass sein Einlass bzw. seine Einlassöffnung 17 innerhalb der Schälkammer kontinuierlich oder diskontinuierlich verstellbar ist (siehe hierzu auch Fig. 2), so dass wenigstens ein erster innerer Radius Ri und einem zweiter äußerer Radius Ra in der Trommel erreicht werden können.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 a second outer radius Ra in the drum can be achieved.

Dies kann beispielsweise dadurch verwirklicht werden, dass das zweite Schälorgan 16 als ein Schälrohr ausgebildet ist, welches im Schnitt der Fig. 1 L-förmig ausgebildet ist und einen ersten Abschnitt 18 aufweist, welcher in der Schälkammer radial ausgerichtet ist und einen zweiten, parallel zur Drehachse D ausgerichteten Abschnitt 19, welcher nach oben aus dem drehenden System geführt ist, wobei der Abschnitt 19 um seine Längsachse auf dem Radius r19 drehbar ist. Ein Verschwenken des Schälrohrs 18 um diese Drehachse r19 (siehe Fig. 2) ermöglicht es, den Einlass 17 zwischen dem erwähnten inneren Radius Ri (gestrichelte Darstellung in Fig. 2) und dem äußeren Radius Ra zu verschwenken (nicht gestrichelte Darstellung in Fig. 2).This can be realized, for example, in that 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 portion 19 about its longitudinal axis on the Radius r19 is rotatable. A pivoting of the peeling tube 18 about this axis of rotation r19 (see Fig. 2 ) 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 ).

Das Verschwenken an sich kann auf verschiedenste Weise realisiert werden, so beispielsweise mittels eines Zahnradgetriebes.The pivoting per se can be realized in a variety of ways, such as by means of a gear transmission.

Hierzu kann beispielsweise am Rohraußendurchmesser ein Verzahnungssegment 20 ausgebildet sein, das mit einem Antriebszahnrad 21 eines ansonsten nicht weiter dargestellten Getriebes kämmt, welchem ein Elektromotor (nicht dargestellt) vorgeschaltet ist. Der Antrieb und die Getriebeverbindung zum Schälorgan können aber auch auf andere Weise realisiert werden.For this purpose, for example, 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.

Wenn das zu verarbeitende Produkt derart beschaffen ist, dass sich die Viskosität einer schwereren Flüssigkeitsphase Hp im Betrieb unerwartet verändern, insbesondere deutlich erhöhen kann, kann einem Verstopfen und Blockieren der Trommel dadurch entgegen gewirkt werden, dass der Einlass des Schälorgans für die schwerere Flüssigkeitsphase auf einen größeren Durchmesser verschwenkt wird, um die kompaktierte schwerere Flüssigkeitsphase bis auf einen weiter außen in der Trommel liegenden Radius abzuleiten. Nach dem Ableiten dieser Flüssigkeitsphase bis auf den mit dem zweiten Schälorgan eingestellten weiter äußeren Radius Ra oder nach dem Verstreichen einer vorgegebenen Zeit wird das Schälorgan zum Ableiten des schwereren Flüssigkeitsphase wieder auf einen kleineren Ri bewegt.If the product to be processed is such that the viscosity of a heavier liquid phase Hp can unexpectedly change, in particular significantly increase, during operation, clogging and blocking of the drum can be counteracted by the inlet of the peeling member for the heavier liquid phase is pivoted to a larger diameter, in order to derive the compacted heavier liquid phase to a radius lying farther out in the drum. After deriving this liquid phase to the set with the second peeling member further outer radius Ra or after the lapse of a predetermined time, the peeling member is moved to derive the heavier liquid phase back to a smaller Ri.

Als Indikator für den Anstieg der Viskosität in der schwereren Flüssigkeitsphase kann der sich verändernde Zulaufdruck im Produktzulauf ermittelt werden oder der Ablaufdruck der leichteren Flüssigkeitsphase. Übersteigt dieser Druck einen Schwellwert oder ist der Gradient des Zulauf- oder Ablaufdrucks zu groß, wird das zweite Schälorgan auf den erwähnten größeren Radius verstellt.As an indicator of the increase in viscosity in the heavier liquid phase of the changing feed pressure can be determined in the product feed or the discharge pressure of the lighter liquid phase. If this pressure exceeds a threshold value or if the gradient of the inlet or outlet pressure is too great, the second peeling element is adjusted to the larger radius mentioned.

Bezugszeichenreference numeral

Separatortrommelseparator
11
Drehspindelspindle
22
HaubeHood
33
ProduktzulaufrohrProduct supply pipe
44
Verteilerdistributor
55
Auftrittsöffnungenoccurs openings
66
Steigekanalrising channel
77
TellerpaketDisc stack
88th
Scheidetellerseparating disk
99
Feststoffaustragsöffnungensolids discharge
1010
Kolbenschieberspool
1111
Schälkammerpeeling chamber
1212
Schälscheibepeeling disc
1313
Einlassinlet
1414
AbleitungskanalWaterway
1515
Schälorganparing element
1616
Einlassinlet
1717
erster Abschnittfirst section
1818
Zweiter Abschnittsecond part
1919
Produktzulaufproduct feed
PP
Schwere PhaseHeavy phase
HPHP
Leichte PhaseEasy phase
LPLP
FeststoffphaseSolid phase
SS
Drehachseaxis of rotation
DD

Claims (7)

  1. A method for the continuous processing of a product, especially a vegetable or animal oil or fat, by means of phase separation in at least two liquid phases, preferably in conjunction with additional clarification of solids,
    a) wherein the processing of the product occurs in a centrifuge which is arranged as a separator, which comprises a rotatable drum (1) in which a disk stack (8) with risers (7) is arranged, and is provided with a product feed and at least two gripper elements (13,16) for discharging a lighter and a heavier liquid phase from the drum (1) and solid discharge openings (10) for discharging a solid phase, so that a separation zone is formed between the lighter and the heavier liquid phase (HP, LP) in the centrifuge,
    characterized in that
    b) the discharge radius for discharging the heavier liquid phase will be adjusted when the viscosity of the heavier liquid phase (HP) changes beyond at least one limit value.
  2. A method according to claim 1, characterized in that when the viscosity of the heavier liquid phase (HP) increases substantially the inlet (17) of the separator element (16) for discharging the heavier liquid phase (HP) is moved from a smaller radius (Ri) to a larger diameter (Ra) in the drum (1), and that after the discharge of the highly compacted liquid up to the radius that can be reached with the second separator element (13) the separator element (16) will be set back to a smaller radius (Ri) again in the drum (1) for discharging the heavier liquid phase.
  3. A method according to one of the preceding claims, characterized in that the varying feed pressure in the product feed (P) will be determined and evaluated as an indicator for the rise in the viscosity in the heavier liquid phase (HP).
  4. A method according to one of the preceding claims, characterized in that the varying discharge pressure of the lighter liquid phase (LP) will be determined and evaluated as an indicator for the rise in the viscosity in the heavier liquid phase (HP).
  5. A method according to one of the preceding claims, characterized in that the heavier liquid phase (HP) and the solid phase (S) are discharged discontinuously from the drum (1).
  6. A method according to claim 5, characterized in that the heavier liquid phase (HP) and the solid phase (S) are discharged at different points in time from the drum (1).
  7. A method according to one of the preceding claims, characterized in that at least phosphatides and/or phosphatides from the incoming vegetable or animal oil or fat are separated as the heavier liquid phase (HP).
EP11767014.1A 2010-10-14 2011-10-10 Phase-separation method for a product, using a centrifuge Active EP2627451B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102010038193A DE102010038193A1 (en) 2010-10-14 2010-10-14 Process for the phase separation of a product with a centrifuge
PCT/EP2011/067638 WO2012049118A1 (en) 2010-10-14 2011-10-10 Phase-separation method for a product, using a centrifuge

Publications (2)

Publication Number Publication Date
EP2627451A1 EP2627451A1 (en) 2013-08-21
EP2627451B1 true EP2627451B1 (en) 2014-12-10

Family

ID=44764170

Family Applications (1)

Application Number Title Priority Date Filing Date
EP11767014.1A Active EP2627451B1 (en) 2010-10-14 2011-10-10 Phase-separation method for a product, using a centrifuge

Country Status (8)

Country Link
US (1) US9561513B2 (en)
EP (1) EP2627451B1 (en)
CN (1) CN103153473B (en)
BR (1) BR112013008889B1 (en)
DE (1) DE102010038193A1 (en)
ES (1) ES2532212T3 (en)
RU (1) RU2573876C2 (en)
WO (1) WO2012049118A1 (en)

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DE102013100180A1 (en) * 2012-03-26 2013-09-26 Gea Mechanical Equipment Gmbh separator arrangement
EP2796203B1 (en) * 2013-04-23 2015-11-25 Andritz Frautech S.r.l. Device for drawing off fluid of a centrifugation device
DE102013111576A1 (en) * 2013-10-21 2015-04-23 Gea Mechanical Equipment Gmbh Process for clarifying a flowable product with a centrifuge, in particular a separator
JP5829352B1 (en) * 2015-07-31 2015-12-09 三菱化工機株式会社 Centrifuge for exhaust gas scrubber and operation method thereof
DK3290093T3 (en) 2016-09-06 2022-07-11 Alfa Laval Corp Ab PROCEDURE FOR PURIFYING FUEL OIL FOR A DIESEL ENGINE
CN108176520A (en) * 2017-12-25 2018-06-19 江苏巨能机械有限公司 Three-phase disc separator
CN109731699B (en) * 2019-01-18 2020-04-10 西安交通大学 Liquid-liquid two-phase fluid centrifugal separation device and method
US10654050B1 (en) * 2019-05-21 2020-05-19 Empirical Innovations, Inc. Centrifugal separators and separation methods employing multiple pistons and facilitating intermediate material ejection
CN112221721B (en) * 2020-08-20 2022-10-14 南京中船绿洲机器有限公司 Disc type separator

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FR1554226A (en) * 1967-05-10 1969-01-17
DK410284A (en) * 1984-08-28 1986-03-01 Alfa Laval Zeta As PROCEDURE FOR MANAGING THE INTERFACE BETWEEN OIL AND WATER BY SLAM DRAINAGE FROM A Centrifuge for Separating Oil and Water and Sludge
US4594166A (en) * 1985-03-25 1986-06-10 William D. Clinton Desludging device for centrifuges
SE452260B (en) * 1986-03-12 1987-11-23 Alfa Laval Separation Ab Centrifugal separator arranged for exhaustion of a separated product with a specific concentration
DE3811619C1 (en) * 1988-03-12 1989-08-17 Westfalia Separator Ag, 4740 Oelde, De
DE4108854C1 (en) * 1991-03-19 1992-05-27 Westfalia Separator Ag, 4740 Oelde, De Drum centrifuge used in animal fat refining - has series of plates to separate solids and fluids equipped with divider plate having off-take channels to transfer heavy prod. from rim to central off-take chamber
SE500414C2 (en) * 1992-09-21 1994-06-20 Alfa Laval Separation Ab Centrifugal separator with stationary discharge means
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RU2262990C2 (en) * 2003-10-08 2005-10-27 Старокожев Виктор Алексеевич Pressure-tight separator for separating emulsions
DE10361520C5 (en) * 2003-12-23 2012-02-23 Gea Westfalia Separator Gmbh Method for preventing clogging of the flow paths of a separator
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Also Published As

Publication number Publication date
WO2012049118A1 (en) 2012-04-19
CN103153473A (en) 2013-06-12
US9561513B2 (en) 2017-02-07
BR112013008889A2 (en) 2016-06-28
RU2573876C2 (en) 2016-01-27
US20140057772A1 (en) 2014-02-27
BR112013008889B1 (en) 2020-10-13
EP2627451A1 (en) 2013-08-21
ES2532212T3 (en) 2015-03-25
RU2013121275A (en) 2014-11-20
CN103153473B (en) 2014-08-20
DE102010038193A1 (en) 2012-04-19

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