EP0487780A1 - Continuously operating centrifugal strainer for sugar massecuites - Google Patents

Continuously operating centrifugal strainer for sugar massecuites Download PDF

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Publication number
EP0487780A1
EP0487780A1 EP90122964A EP90122964A EP0487780A1 EP 0487780 A1 EP0487780 A1 EP 0487780A1 EP 90122964 A EP90122964 A EP 90122964A EP 90122964 A EP90122964 A EP 90122964A EP 0487780 A1 EP0487780 A1 EP 0487780A1
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EP
European Patent Office
Prior art keywords
product distributor
distributor
bell
centrifuge
product
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.)
Granted
Application number
EP90122964A
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German (de)
French (fr)
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EP0487780B1 (en
Inventor
Helmut Schaper
Heinrich Kurland
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.)
BMA Braunschweigische Maschinenbauanstalt AG
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BMA Braunschweigische Maschinenbauanstalt AG
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First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=8204774&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0487780(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by BMA Braunschweigische Maschinenbauanstalt AG filed Critical BMA Braunschweigische Maschinenbauanstalt AG
Priority to EP90122964A priority Critical patent/EP0487780B1/en
Priority to DE90122964T priority patent/DE59005216D1/en
Priority to US07/800,856 priority patent/US5244502A/en
Priority to ZA919428A priority patent/ZA919428B/en
Priority to BR919105194A priority patent/BR9105194A/en
Priority to JP3316910A priority patent/JPH0763654B2/en
Priority to AU88363/91A priority patent/AU640835B2/en
Publication of EP0487780A1 publication Critical patent/EP0487780A1/en
Publication of EP0487780B1 publication Critical patent/EP0487780B1/en
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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
    • B04B11/06—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
    • B04B3/00—Centrifuges with rotary bowls in which solid particles or bodies become separated by centrifugal force and simultaneous sifting or filtering
    • C—CHEMISTRY; METALLURGY
    • C13—SUGAR INDUSTRY
    • C13B—PRODUCTION OF SUCROSE; APPARATUS SPECIALLY ADAPTED THEREFOR
    • C13B30/00—Crystallisation; Crystallising apparatus; Separating crystals from mother liquors ; Evaporating or boiling sugar juice
    • C13B30/04—Separating crystals from mother liquor
    • C13B30/06—Separating crystals from mother liquor by centrifugal force

Definitions

  • the invention relates to a continuously operating centrifuge for centrifuging sugar filling masses with a sieve basket which is flared upwards and which rotates about a vertical axis, a product distributor which is flared downwards and which extends into the bottom region of the sieve basket and which is essentially coaxial to the sieve basket, below forms a discharge edge and rotates about the same vertical axis as the strainer basket, and a distribution pot provided inside and in the upper area of the product distributor as a feed device for the sugar filling masses in the axis area of the centrifuge.
  • centrifuges are known for example from DE 22 07 663 C3 or DE 38 28 204 C2.
  • the sugar filling mass is first placed in the distribution pot as a feed device. This is located in the axis area of the centrifuge and should ensure that the sugar filling mass is distributed as evenly as possible for further processing in the centrifuge.
  • the filling compound is carried along in the distribution pot by adhesion to its wall and gradually accelerated to the peripheral speed of the wall.
  • the filling mass is distributed over the circumference of the distribution pot and is thrown off over the upper edge of the distribution pot if the filling mass continues to flow.
  • the filling compound hits the inside surface of the product distributor, which is also known as the acceleration bell or pre-spinning drum can be.
  • the filler can be supplied with steam or deck water from the appropriate feed lines.
  • the well-known product distributors themselves are drum-like and expand slightly conically downwards. They form a discharge rim at the bottom, from which the sugar filling masses reaching there are thrown outwards into the actual sieve basket, which is flared upwards and rotates about the same vertical axis.
  • a constant problem is that the filling compound supplied to the distributor pot is distributed unevenly with increasing viscosity and forms a layer of different thickness on the inner surface of the product distributor.
  • upstanding distributor rods are arranged in order to first mechanically divide the filler mass strand before the filler mass reaches the inner surface of the distributor pot, strip-shaped inhomogeneities of the filler mass arise which continue through the product distributor to the sieve surface of the drum.
  • the object of the invention is to further improve the uniformity of the distribution of the sugar filling masses in the continuously operating centrifuges.
  • peripheral wall of the product distributor has a plurality of ring elements which overlap in the axial direction while leaving an annular gap, and in that the product distributor is surrounded by a stationary bell which surrounds it with play on all sides and is flared downwards.
  • the effectiveness of the product distributor of continuously operating centrifuges is significantly improved by the invention.
  • the sugar filling masses coming from the distribution pot onto the inner wall of the product distributor are already pushed down by the centrifugal force due to the conical expansion.
  • a further homogenization is now achieved by the cracks that form at the ring gaps between two ring elements.
  • the sugar filling masses are circulated at these points, because the particles closest to the inner wall glide over the latter due to the greater adhesion of the particles lying on the wall of the product distributor until they reach the inner wall of the next ring element.
  • An additional equalization of the layer thickness on the inner wall of the product distributor thus occurs automatically.
  • a steam supply is provided in the area of play between the product distributor and the bell, which supplies steam to the interior of the product distributor via the annular gaps.
  • the steam reaches the interior of the product distributor precisely at the transitions of the rotating cone between the ring elements. To do this, it flows through the particles of sugar filling material that are flung from one ring element to the next and reaches them at the moment when they offer an optimal surface for contact with steam or its condensate and water and immediately afterwards homogenizing and mixing a kneading movement when it hits be exposed to the next ring element.
  • An additional advantage is that the steam flows passing the ring elements on the outside cause further heating of these ring elements, ie the cone wall. This heat is immediately passed on to the filling compound flowing out on the inner wall of the product distributor, which further promotes homogenization and mixing.
  • the bell surrounding the product distributor can and should be stationary. Otherwise, the resulting pressure conditions could result in an air flow from the inside of the product distributor through the annular gaps to the outside, which is not desirable.
  • the steam supply is much more effective and uniform and also less expensive than separate heating of the product distributor, as is proposed for example in GB-PS 1 074 229.
  • the stationary bell which is flared at the bottom, projects downwards over the product distributor and forms an impact surface.
  • the sugar filling masses can then fall down into the rotating sieve basket of the centrifuge, from where they start their way up to the upper edge in the course of further processing.
  • the centrifuge shown has a stationary frame 10 with a base 11, side walls 12, a cover 13 above the actual strainer basket 20 and a filling funnel 14.
  • the sugar filling mass falls into the distribution pot 30 through the filling funnel 14 and a likewise fixed shaft 15.
  • the screen basket 20, the distributor pot 30 and a product distributor 40 rotate about a common vertical axis 16.
  • the distributor pot 30 is drum-shaped with a closed bottom 31 and cylindrical walls 32.
  • the product distributor 40 has 3 ring elements 41, 42, 43, each of which extends conically downwards, but is otherwise cylinder-symmetrical.
  • An annular gap 44 or 45 is formed between the ring elements 41 and 42 or the ring elements 42 and 43.
  • the ring elements 41, 42, 43 can be fastened to one another by means of individual webs.
  • the uppermost ring element 41 is closed at the top, but allows the shaft 15 to pass into the distribution pot 30 in the region near the axis for filling the sugar filling masses.
  • the fastening of the rods 34 is also arranged.
  • the ring elements 41, 42, 43 of the product distributor 40 are surrounded with a play on all sides by a stationary bell 50 which is flared downwards.
  • This bell 50 is fastened to the cover 13 by means of a holding device 51.
  • the bell 50 is cylindrically symmetrical to the axis 16, so that the play between the bell 50 and the ring elements of the product distributor 40 is cylindrically symmetrical.
  • a steam supply 52 leads into the game, with which steam (not shown) can enter the area between the product distributor 40 and the bell 50 from the outside. This steam then passes through the ring gaps 44, 45 into the interior of the ring elements 41, 42, 43 and in the process flows through the sugar filling compounds located there.
  • the sugar filling masses each pass from one ring element 41, 42, 43 to the next lower one, the previous one conically surrounding it.
  • the sugar filling masses are thrown outwards from the discharge edge of the lowermost ring element 43, where they meet an impact surface 21 of the sieve basket 20. From there they reach a sieve firmly connected to the basket base and this baffle surface 21 and move upwards on the sieve due to the centrifugal force.
  • a mashing device can be provided in the area of the impact surface 21.
  • the sieve basket 20 is closed at the top by a relatively solid rim 22, from which the sugar particles are thrown outwards, collected there and further processed (not shown).
  • the embodiment from FIG. 2 differs from the embodiment from FIG. 1 in that the stationary bell 50 extends further downward than the lower edge of the lowermost ring element 43 of the product distributor 40.
  • the bell 50 is there with a relatively solid rim equipped, which forms a baffle 53.
  • the sugar filling compound particles reaching the discharge edge of the lowermost ring element 43 of the product distributor 40 are thrown off from there and now hit the impact surface 53, not the impact surface 21 from FIG. 1. This leads to a braking of the tangentially flung particles and to one further mixing.
  • the particles fall down from the impact surface 53 onto the basket base 23 of the sieve basket 20, but then migrate lengthwise, as in the exemplary embodiment in FIG. 1 of the screen basket 20 in turn upwards to the edge 22.
  • the baffle surface 53 is of identical design all round.

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  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Biochemistry (AREA)
  • Organic Chemistry (AREA)
  • Centrifugal Separators (AREA)

Abstract

The invention relates to a continuously operating centrifuge for straining sugar massecuites. A conically upwardly widened perforated basket 20 rotates about a perpendicular axis 16. A downwardly conically widened product distributor 40 which extends into the floor area of the perforated basket is essentially coaxial with respect to the perforated basket, forms an ejection edge at the bottom and rotates about the same axis. Inside and in the upper area of the product distributor 40 a distributor pot 30 is provided as charging device for the massecuites. The circumferential wall of the product distributor 40 has a plurality of annular elements 41, 42, 43 which overlap in the axial direction leaving an annular gap 44, 45. The product distributor is surrounded, with play on all sides, by a downwardly conically widened stationary bell 50. …<IMAGE>…

Description

Die Erfindung betrifft eine kontinuierlich arbeitende Zentrifuge zum Abschleudern von Zuckerfüllmassen mit einem nach oben konisch erweiterten Siebkorb, der um eine lotrechte Achse rotiert, einem nach unten konisch erweiterten und bis in den Bodenbereich des Siebkorbes reichenden Produktverteiler, der im wesentlichen koaxial zum Siebkorb ist, unten einen Abwurfrand bildet und um die gleiche lotrechte Achse wie der Siebkorb rotiert, und einem innerhalb und im oberen Bereich des Produktverteilers vorgesehenen Verteilertopf als Aufgabeeinrichtung für die Zuckerfüllmassen im Achsbereich der Zentrifuge.The invention relates to a continuously operating centrifuge for centrifuging sugar filling masses with a sieve basket which is flared upwards and which rotates about a vertical axis, a product distributor which is flared downwards and which extends into the bottom region of the sieve basket and which is essentially coaxial to the sieve basket, below forms a discharge edge and rotates about the same vertical axis as the strainer basket, and a distribution pot provided inside and in the upper area of the product distributor as a feed device for the sugar filling masses in the axis area of the centrifuge.

Derartige Zentrifugen sind beispielsweise aus der DE 22 07 663 C3 oder der DE 38 28 204 C2 bekannt. Die Zuckerfüllmasse wird zunächst in den Verteilertopf als Aufgabeeinrichtung gegeben. Dieser liegt im Achsbereich der Zentrifuge und soll für eine radial möglichst gleichmäßige Verteilung der Zuckerfüllmasse für die weitere Verarbeitung in der Zentrifuge sorgen. Im Verteilertopf wird die Füllmasse durch Haftung an dessen Wandung mitgenommen und allmählich auf die Umfangsgeschwindigkeit der Wandung beschleunigt. Dabei verteilt sich die Füllmasse über den Umfang des Verteilertopfes und wird bei ständigem Nachfluß der Füllmasse über die obere Kante des Verteilertopfes abgeschleudert. Die Füllmasse trifft nach einer kurzen, im freien Flug zurückgelegten Strecke auf die Innenoberfläche des Produktverteilers, der auch als Beschleunigungsglocke oder Vorschleudertrommel bezeichnet werden kann. Während des freien Fluges kann die Füllmasse aus entsprechend vorgesehenen Speiseleitungen mit Dampf oder Deckwasser beaufschlagt werden.Such centrifuges are known for example from DE 22 07 663 C3 or DE 38 28 204 C2. The sugar filling mass is first placed in the distribution pot as a feed device. This is located in the axis area of the centrifuge and should ensure that the sugar filling mass is distributed as evenly as possible for further processing in the centrifuge. The filling compound is carried along in the distribution pot by adhesion to its wall and gradually accelerated to the peripheral speed of the wall. The filling mass is distributed over the circumference of the distribution pot and is thrown off over the upper edge of the distribution pot if the filling mass continues to flow. After a short distance covered in free flight, the filling compound hits the inside surface of the product distributor, which is also known as the acceleration bell or pre-spinning drum can be. During the free flight, the filler can be supplied with steam or deck water from the appropriate feed lines.

Die bekannten Produktverteiler selbst sind trommelähnlich und erweitern sich nach unten schwach konisch. Sie bilden unten einen Abwurfrand, von dem die dort hingelangenden Zuckerfüllmassen nach außen in den eigentlichen, nach oben konisch erweiterten Siebkorb abgeschleudert werden, der um die gleiche lotrechte Achse rotiert.The well-known product distributors themselves are drum-like and expand slightly conically downwards. They form a discharge rim at the bottom, from which the sugar filling masses reaching there are thrown outwards into the actual sieve basket, which is flared upwards and rotates about the same vertical axis.

Ein ständiges Problem ist, daß sich die dem Verteilertopf zugeführte Füllmasse mit zunehmender Viskosität nur ungleichmäßig verteilt und auf der Innenfläche des Produktverteilers eine Schicht unterschiedlicher Dicke bildet.A constant problem is that the filling compound supplied to the distributor pot is distributed unevenly with increasing viscosity and forms a layer of different thickness on the inner surface of the product distributor.

Wenn bei hochviskosen Füllmassen in dem Verteilertopf aufragende Verteilerstäbe angeordnet werden, um den Füllmassestrang zunächst mechanisch zu unterteilen, ehe die Füllmasse auf die Innenoberfläche des Verteilertopfes gelangt, entstehen streifenförmige Inhomogenitäten der Füllmasse, die sich über den Produktverteiler bis auf die Siebfläche der Trommel fortsetzen.If, in the case of highly viscous filler masses, upstanding distributor rods are arranged in order to first mechanically divide the filler mass strand before the filler mass reaches the inner surface of the distributor pot, strip-shaped inhomogeneities of the filler mass arise which continue through the product distributor to the sieve surface of the drum.

Aufgabe der Erfindung ist es, die Gleichmäßigkeit der Verteilung der Zuckerfüllmassen in den kontinuierlich arbeitenden Zentrifugen weiter zu verbessern.The object of the invention is to further improve the uniformity of the distribution of the sugar filling masses in the continuously operating centrifuges.

Diese Aufgabe wird dadurch gelöst, daß die Umfangswandung des Produktverteilers mehrere sich in Achsrichtung unter Belassung eines Ringspaltes überdeckende Ringelemente aufweist und daß der Produktverteiler von einer ihn mit allseitigem Spiel umgebenden, nach unten konisch erweiterten stationären Glocke umgeben ist.This object is achieved in that the peripheral wall of the product distributor has a plurality of ring elements which overlap in the axial direction while leaving an annular gap, and in that the product distributor is surrounded by a stationary bell which surrounds it with play on all sides and is flared downwards.

Durch die Erfindung wird die Wirksamkeit des Produktverteilers von kontinuierlich arbeitenden Zentrifugen deutlich verbessert. Die von dem Verteilertopf auf die Innenwandung des Produktverteilers gelangenden Zuckerfüllmassen werden schon durch die Zentrifugalkraft aufgrund der konischen Erweiterung nach unten gedrängt. Nunmehr wird durch die Sprünge, die sich an den Ringspalten zwischen je zwei Ringelementen bilden, eine weitere Homogenisierung erreicht. Die Zuckerfüllmassen werden an diesen Stellen umgewälzt, denn die auf der Innenwandung achsnächsten Partikel gleiten aufgrund der größeren Haftung der an der Wand des Produktverteilers anliegenden Partikels über letzteren hinweg, bis sie auf die Innenwandung des jeweils nächsten Ringelementes gelangen. Es tritt so automatisch eine zusätzliche Vergleichmäßigung der Schichtdicke auf der Innenwandung des Produktverteilers ein.The effectiveness of the product distributor of continuously operating centrifuges is significantly improved by the invention. The sugar filling masses coming from the distribution pot onto the inner wall of the product distributor are already pushed down by the centrifugal force due to the conical expansion. A further homogenization is now achieved by the cracks that form at the ring gaps between two ring elements. The sugar filling masses are circulated at these points, because the particles closest to the inner wall glide over the latter due to the greater adhesion of the particles lying on the wall of the product distributor until they reach the inner wall of the next ring element. An additional equalization of the layer thickness on the inner wall of the product distributor thus occurs automatically.

Von ganz besonderem Vorteil ist es, wenn eine Dampfzufuhr in den Bereich des Spiels zwischen dem Produktverteiler und der Glocke vorgesehen ist, die über die Ringspalte in das Innere des Produktverteilers Dampf zuführt. Dadurch findet eine besonders effektive Vermischung von Dampf mit der Zuckerfüllmasse statt. Gerade an den Übergängen des rotierenden Konus zwischen den Ringelementen gelangt der Dampf in das Produktverteilerinnere. Dazu strömt er durch die von jeweils einem Ringelement zum nächsten geschleuderten Zuckerfüllmasse-Partikel und erreicht diese gerade in dem Moment, wo sie eine optimale Oberfläche für einen Kontakt mit Dampf bzw. dessen Kondensat und Wasser darbieten und unmittelbar anschließend homogenisierend und mischend einer Knetbewegung beim Auftreffen auf das nächste Ringelement ausgesetzt werden.It is particularly advantageous if a steam supply is provided in the area of play between the product distributor and the bell, which supplies steam to the interior of the product distributor via the annular gaps. This results in a particularly effective mixing of steam with the sugar filling compound. The steam reaches the interior of the product distributor precisely at the transitions of the rotating cone between the ring elements. To do this, it flows through the particles of sugar filling material that are flung from one ring element to the next and reaches them at the moment when they offer an optimal surface for contact with steam or its condensate and water and immediately afterwards homogenizing and mixing a kneading movement when it hits be exposed to the next ring element.

Als zusätzlicher Vorteil ergibt sich, daß die außen an den Ringelementen vorbeigelangenden Dampfströme eine weitere Aufheizung dieser Ringelemente, also der Konuswand bewirken. Diese Wärme wird der auf der Innenwandung des Produktverteilers abfließenden Füllmasse unmittelbar weitergegeben, was die Homogenisierung und Vermischung zusätzlich begünstigt.An additional advantage is that the steam flows passing the ring elements on the outside cause further heating of these ring elements, ie the cone wall. This heat is immediately passed on to the filling compound flowing out on the inner wall of the product distributor, which further promotes homogenization and mixing.

Die den Produktverteiler umgebende Glocke kann stationär sein und sollte dies auch. Anderenfalls könnte durch die entstehenden Druckverhältnisse eine Luftströmung aus dem Inneren des Produktverteilers durch die Ringspalte nach außen erfolgen, was nicht erwünscht ist.The bell surrounding the product distributor can and should be stationary. Otherwise, the resulting pressure conditions could result in an air flow from the inside of the product distributor through the annular gaps to the outside, which is not desirable.

Die Dampfzufuhr ist wesentlich effektiver und gleichmäßiger und auch weniger aufwendig als eine separate Heizung des Produktverteilers, wie sie beispielsweise in der GB-PS 1 074 229 vorgeschlagen wird.The steam supply is much more effective and uniform and also less expensive than separate heating of the product distributor, as is proposed for example in GB-PS 1 074 229.

Durch das Rotieren wird der Dampf aus dem Spiel zwischen dem Produktverteiler und der Glocke automatisch in das Innere des Produktverteilers hineingezogen. Besondere Düsen oder dgl. sind daher nicht erforderlich.By rotating the steam from the play between the product distributor and the bell is automatically drawn into the interior of the product distributor. Special nozzles or the like are therefore not necessary.

Als besonders zweckmäßig hat es sich erwiesen, wenn die Zahl der Ringelemente zwischen 2 und 5 liegt, insbesondere 3 Ringelemente, also 2 Ringspalte, stellen einen wirtschaftlichen Vorteil dar. Bei einer großen Anzahl von Ringelementen muß entweder der Ringspalt relativ klein werden oder die Abmessungen des Produktverteilers mit stationärer Glocke und damit auch der gesamten Zentrifuge steigen stark an.It has proven to be particularly useful if the number of ring elements is between 2 and 5, in particular 3 ring elements, ie 2 ring gaps, represent an economic advantage. With a large number of ring elements, either the ring gap must be relatively small or the dimensions of the Product distributors with a stationary bell and thus also the entire centrifuge are rising sharply.

In einer bevorzugten Alternative überragt die nach unten konisch erweiterte stationäre Glocke den Produktverteiler nach unten und bildet eine Prallfläche.In a preferred alternative, the stationary bell, which is flared at the bottom, projects downwards over the product distributor and forms an impact surface.

Dadurch wird es möglich, diese untere Fläche der Glocke noch zu einem weiteren Vermischungsprozeß zu nutzen, da die von der Abwurfkante des Produktverteilers selbst abgeschleuderten Zuckerfüllmassen nun auf diese Prallfläche, die stationär ist, auftreffen und so durch die tangentiale Geschwindigkeitskomponente ein weiteres Verschmieren eventuell noch vorhandener Ansammlungen von klumpen- oder wurstförmigen Zuckerfüllmassen erreicht wird.This makes it possible to use this lower surface of the bell for a further mixing process, since the sugar filling masses thrown off from the discharge edge of the product distributor itself now hit this baffle, which is stationary, and the tangential speed component thus further smears any accumulations of lump or sausage-shaped sugar filling masses that are still present.

Von dieser Prallfläche können die Zuckerfüllmassen dann nach unten in den rotierenden Siebkorb der Zentrifuge fallen, von wo sie im Zuge der Weiterverarbeitung den Weg aufwärts bis zur oberen Kante antreten.From this baffle, the sugar filling masses can then fall down into the rotating sieve basket of the centrifuge, from where they start their way up to the upper edge in the course of further processing.

Im folgenden werden anhand der Zeichnungen zwei Ausführungsbeispiele der Erfindung im einzelnen beschrieben. Es zeigen:

Fig. 1
einen Schnitt durch eine erste Ausführungsform der Erfindung und
Fig. 2
einen Schnitt durch eine zweite Ausführungsform der Erfindung.
Two exemplary embodiments of the invention are described in detail below with reference to the drawings. Show it:
Fig. 1
a section through a first embodiment of the invention and
Fig. 2
a section through a second embodiment of the invention.

Die dargestellte Zentrifuge besitzt ein ortsfestes Gestell 10 mit Boden 11, Seitenwänden 12, einer Abdeckung 13 oberhalb des eigentlichen Siebkorbes 20 und einem Einfülltrichter 14. Durch den Einfülltrichter 14 und einen ebenfalls ortsfesten Schacht 15 fällt die Zuckerfüllmasse in den Verteilertopf 30.The centrifuge shown has a stationary frame 10 with a base 11, side walls 12, a cover 13 above the actual strainer basket 20 and a filling funnel 14. The sugar filling mass falls into the distribution pot 30 through the filling funnel 14 and a likewise fixed shaft 15.

Der Siebkorb 20, der Verteilertopf 30 und ein Produktverteiler 40 rotieren um eine gemeinsame lotrechte Achse 16.The screen basket 20, the distributor pot 30 and a product distributor 40 rotate about a common vertical axis 16.

Der Verteilertopf 30 ist trommelförmig mit einem geschlossenen Boden 31 und zylindrischen Wänden 32.The distributor pot 30 is drum-shaped with a closed bottom 31 and cylindrical walls 32.

Die in ihn aus dem Schacht 15 gelangenden Zuckerfüllmassen werden, da sie ständig nachdrängen, nach oben über den Rand 33 der zylindrischen Wandung 32 gedrängt, von wo sie durch die Zentrifugalkraft nach außen abgeschleudert auf die Innenwandung des Produktverteilers 40 treffen. Produktverteiler 40 und Verteilertopf 30 sind über Stäbe 34 miteinander verbunden, die gleichzeitig zum Mischen und Homogenisieren der Zuckerfüllmassen innerhalb des Verteilertopfes 30 dienen.The sugar filling masses coming into it from the shaft 15 are pushed upwards over the edge 33 of the cylindrical wall 32, from where they hit the inner wall of the product distributor 40 by centrifugal force. Product distributor 40 and distributor pot 30 are connected to one another via rods 34, which simultaneously serve for mixing and homogenizing the sugar filling masses within the distributor pot 30.

Der Produktverteiler 40 besitzt in dem dargestellten Fall 3 Ringelemente 41,42,43, die jeweils für sich konisch nach unten erweitert, im übrigen aber zylindersymmetrisch sind. Zwischen den Ringelementen 41 und 42 bzw. den Ringelementen 42 und 43 bildet sich jeweils ein Ringspalt 44 bzw. 45. Die Befestigung der Ringelemente 41, 42, 43 aneinander kann durch vereinzelte Stege erfolgen. Das oberste Ringelement 41 ist nach oben abgeschlossen, läßt allerdings im achsnahen Bereich den Schacht 15 zum Einfüllen der Zuckerfüllmassen in den Verteilertopf 30 durchtreten. In dem Abschluß des Ringelements 41 nach oben ist auch die Befestigung der Stäbe 34 angeordnet.In the case shown, the product distributor 40 has 3 ring elements 41, 42, 43, each of which extends conically downwards, but is otherwise cylinder-symmetrical. An annular gap 44 or 45 is formed between the ring elements 41 and 42 or the ring elements 42 and 43. The ring elements 41, 42, 43 can be fastened to one another by means of individual webs. The uppermost ring element 41 is closed at the top, but allows the shaft 15 to pass into the distribution pot 30 in the region near the axis for filling the sugar filling masses. In the end of the ring element 41 upwards, the fastening of the rods 34 is also arranged.

Die Ringelemente 41, 42, 43 des Produktverteilers 40 sind mit allseitigem Spiel von einer nach unten konisch erweiterten stationären Glocke 50 umgeben. Diese Glocke 50 ist mittels einer Haltevorrichtung 51 an der Abdeckung 13 befestigt. Die Glocke 50 ist zur Achse 16 zylindersymmetrisch, so daß auch das Spiel zwischen der Glocke 50 und den Ringelementen des Produktverteiler 40 zylindersymmetrisch ist.The ring elements 41, 42, 43 of the product distributor 40 are surrounded with a play on all sides by a stationary bell 50 which is flared downwards. This bell 50 is fastened to the cover 13 by means of a holding device 51. The bell 50 is cylindrically symmetrical to the axis 16, so that the play between the bell 50 and the ring elements of the product distributor 40 is cylindrically symmetrical.

In das Spiel führt eine Dampfzufuhr 52, mit der Dampf (nicht dargestellt) von außen in den Bereich zwischen dem Produktverteiler 40 und die Glocke 50 eintreten kann. Dieser Dampf gelangt dann durch die Ringspalte 44, 45 in das Innere der Ringelemente 41, 42, 43 und durchströmt dabei die dort befindlichen Zuckerfüllmassen.A steam supply 52 leads into the game, with which steam (not shown) can enter the area between the product distributor 40 and the bell 50 from the outside. This steam then passes through the ring gaps 44, 45 into the interior of the ring elements 41, 42, 43 and in the process flows through the sugar filling compounds located there.

Aufgrund der Zentrifugalkraft gelangen die Zuckerfüllmassen jeweils von einem Ringelement 41, 42, 43 zum nächst unteren, das vorherige konisch außen umgebende. Von der Abwurfkante des untersten Ringelementes 43 werden die Zuckerfüllmassen nach außen abgeschleudert, wo sie auf eine Prallfläche 21 des Siebkorbs 20 treffen. Von dort gelangen sie auf ein mit dem Korbboden und dieser Prallfläche 21 fest verbundenes Sieb und wandern aufgrund der Zentrifugalkraft auf dem Sieb nach oben. In dem Bereich der Prallfläche 21 kann eine Einmaischeinrichtung vorgesehen werden. Der Siebkorb 20 ist nach oben hin durch einen relativ massiv ausgebildeten Rand 22 abgeschlossen, von dem aus die Zuckerpartikel nach außen abgeschleudert, dort aufgefangen und weiterverarbeitet werden (nicht dargestellt).Due to the centrifugal force, the sugar filling masses each pass from one ring element 41, 42, 43 to the next lower one, the previous one conically surrounding it. The sugar filling masses are thrown outwards from the discharge edge of the lowermost ring element 43, where they meet an impact surface 21 of the sieve basket 20. From there they reach a sieve firmly connected to the basket base and this baffle surface 21 and move upwards on the sieve due to the centrifugal force. A mashing device can be provided in the area of the impact surface 21. The sieve basket 20 is closed at the top by a relatively solid rim 22, from which the sugar particles are thrown outwards, collected there and further processed (not shown).

Die Ausführungsform aus Fig. 2 unterscheidet sich von der Ausführungsform aus Fig. 1 dadurch, daß die stationäre Glocke 50 sich nach unten weiter erstreckt als der untere Rand des untersten Ringelements 43 des Produktverteilers 40. Die Glocke 50 ist dort mit einem relativ massiv ausgebildeten Rand ausgestattet, der eine Prallfläche 53 bildet. Die auf die Abwurfkante des untersten Ringelementes 43 des Produktverteilers 40 gelangenden Zuckerfüllmasse-Partikel werden von dort abgeworfen und prallen nun auf die Prallfläche 53, nicht auf die Prallfläche 21 aus der Fig. 1. Dies führt zu einer Abbremsung der tangential abgeschleuderten Partikel und zu einer weiteren Vermischung. Die Partikel fallen von der Prallfläche 53 nach unten auf den Korbboden 23 des Siebkorbs 20, wandern dann aber wie in dem Ausführungsbeispiel der Fig. 1 längs des Siebkorbes 20 wiederum nach oben zum Rand 22. Die Prallfläche 53 ist im Profil rundum gleich ausgebildet.The embodiment from FIG. 2 differs from the embodiment from FIG. 1 in that the stationary bell 50 extends further downward than the lower edge of the lowermost ring element 43 of the product distributor 40. The bell 50 is there with a relatively solid rim equipped, which forms a baffle 53. The sugar filling compound particles reaching the discharge edge of the lowermost ring element 43 of the product distributor 40 are thrown off from there and now hit the impact surface 53, not the impact surface 21 from FIG. 1. This leads to a braking of the tangentially flung particles and to one further mixing. The particles fall down from the impact surface 53 onto the basket base 23 of the sieve basket 20, but then migrate lengthwise, as in the exemplary embodiment in FIG. 1 of the screen basket 20 in turn upwards to the edge 22. The baffle surface 53 is of identical design all round.

Claims (5)

Kontinuierlich arbeitende Zentrifuge zum Abschleudern von Zuckerfüllmassen mit a) einem nach oben konisch erweiterten Siebkorb (20), der um eine lotrechte Achse (16) rotiert, b) einem nach unten konisch erweiterten und bis in den Bodenbereich des Siebkorbes (20) reichenden Produktverteiler (40), der im wesentlichen koaxial zum Siebkorb (20) ist, unten einen Abwurfrand bildet und um die gleiche lotrechte Achse (16) wie der Siebkorb (20) rotiert, und c) einem innerhalb und im oberen Bereich des Produktverteilers (40) vorgesehenen Verteilertopf (30) als Aufgabeeinrichtung für die Zuckerfüllmassen im Achsbereich der Zentrifuge, dadurch gekennzeichnet, daß die Umfangswandung des Produktverteilers (40) mehrere sich in Achsrichtung unter Belassung eines Ringspaltes (44,45) überdeckende Ringelemente (41,42,43) aufweist und daß der Produktverteiler (40) von einer ihn mit allseitigem Spiel umgebenden, nach unten konisch erweiterten stationären Glocke (50) umgeben ist.Continuously operating centrifuge for centrifuging sugar filling masses a) a sieve basket (20) which is flared upwards and rotates about a vertical axis (16), b) a product distributor (40) which is flared downwards and extends into the bottom region of the screen basket (20) and which is essentially coaxial to the screen basket (20), forms a discharge edge at the bottom and about the same vertical axis (16) as the screen basket (20) rotates, and c) a distributor pot (30) provided inside and in the upper region of the product distributor (40) as a feed device for the sugar filling masses in the axis region of the centrifuge, characterized in that the peripheral wall of the product distributor (40) has a plurality of ring elements (41, 42, 43) overlapping in the axial direction, leaving an annular gap (44, 45), and in that the product distributor (40) follows from one that surrounds it with play on all sides is surrounded by a conically expanded stationary bell (50). Zentrifuge nach Anspruch 1, dadurch gekennzeichnet, daß eine Dampfzufuhr (52) in den Bereich des Spiels zwischen dem Produktverteiler (40) und der Glocke (50) vorgesehen ist, die über die Ringspalte (44,45) in das Innere des Produktverteilers (40) Dampf zuführt.Centrifuge according to claim 1, characterized in that a steam supply (52) is provided in the region of the play between the product distributor (40) and the bell (50), which via the annular gaps (44, 45) into the interior of the product distributor (40 ) Supplies steam. Zentrifuge nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß die Zahl der Ringelemente (41,42,43) zwischen 2 und 5 liegt.Centrifuge according to claim 1 or 2, characterized in that the number of ring elements (41, 42, 43) is between 2 and 5. Zentrifuge nach Anspruch 1 bis 3, dadurch gekennzeichnet, daß die nach unten konisch erweiterte stationäre Glocke (50) den Produktverteiler (40) nach unten überragt und eine Prallfläche (53) bildet.Centrifuge according to Claims 1 to 3, characterized in that the stationary bell (50), which is flared downwards, projects downward beyond the product distributor (40) and forms an impact surface (53). Zentrifuge nach Anspruch 4, dadurch gekennzeichnet, daß die Prallfläche (53) rundum das gleiche Profil besitzt.Centrifuge according to claim 4, characterized in that the baffle (53) has the same profile all around.
EP90122964A 1990-11-30 1990-11-30 Continuously operating centrifugal strainer for sugar massecuites Expired - Lifetime EP0487780B1 (en)

Priority Applications (7)

Application Number Priority Date Filing Date Title
EP90122964A EP0487780B1 (en) 1990-11-30 1990-11-30 Continuously operating centrifugal strainer for sugar massecuites
DE90122964T DE59005216D1 (en) 1990-11-30 1990-11-30 Continuously operating centrifuge for centrifuging sugar filling masses.
US07/800,856 US5244502A (en) 1990-11-30 1991-11-26 Continuously operating centrifuge
BR919105194A BR9105194A (en) 1990-11-30 1991-11-29 OPERATING CENTRIFUGAL CONTINUES FOR ROTATION OF SUGAR MASSECUITES
ZA919428A ZA919428B (en) 1990-11-30 1991-11-29 A continuously working centrifuge for spinning off sugar massecuites
JP3316910A JPH0763654B2 (en) 1990-11-30 1991-11-29 Continuously operated centrifuge for centrifuging underneath
AU88363/91A AU640835B2 (en) 1990-11-30 1991-12-02 Centrifuge

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP90122964A EP0487780B1 (en) 1990-11-30 1990-11-30 Continuously operating centrifugal strainer for sugar massecuites

Publications (2)

Publication Number Publication Date
EP0487780A1 true EP0487780A1 (en) 1992-06-03
EP0487780B1 EP0487780B1 (en) 1994-03-30

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EP90122964A Expired - Lifetime EP0487780B1 (en) 1990-11-30 1990-11-30 Continuously operating centrifugal strainer for sugar massecuites

Country Status (7)

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US (1) US5244502A (en)
EP (1) EP0487780B1 (en)
JP (1) JPH0763654B2 (en)
AU (1) AU640835B2 (en)
BR (1) BR9105194A (en)
DE (1) DE59005216D1 (en)
ZA (1) ZA919428B (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19809863A1 (en) * 1998-03-07 1999-09-09 Dorr Oliver Deutschland Continuous centrifuge for the separation of sugar fillmass
WO2010130827A1 (en) * 2009-05-15 2010-11-18 Braunschweigische Maschinenbauanstalt Ag Continuous centrifuge

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4425063C2 (en) * 1994-07-15 1999-05-06 Braunschweigische Masch Bau Continuously operating centrifuge for centrifuging sugar filling masses
EP0733406B1 (en) * 1995-03-24 1999-12-15 Braunschweigische Maschinenbauanstalt AG Centrifuge with a drive unit and an endless transmission means
DE10046983A1 (en) * 2000-09-22 2002-04-18 Baker Hughes De Gmbh Centrifuge for mechanical dewatering and thermal drying of sludge
DE10343376B4 (en) * 2003-09-17 2008-01-24 Braunschweigische Maschinenbauanstalt Ag Continuous sieve centrifuge and process for the preparation of crystal suspensions
DE102009021589A1 (en) 2009-05-15 2010-11-25 Braunschweigische Maschinenbauanstalt Ag Continuously operating centrifuge
JP2021506576A (en) * 2017-12-19 2021-02-22 ゼロス リミテッド Filter for processing equipment

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GB2064351A (en) * 1979-12-04 1981-06-17 Braunschweigische Masch Bau Continuously operating centrifugal strainer for sugar massecuites
EP0152855A2 (en) * 1984-02-17 1985-08-28 Hein, Lehmann Aktiengesellschaft Continuously operating centrifuge

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DE2207663C3 (en) * 1972-02-18 1984-04-26 Braunschweigische Maschinenbauanstalt AG, 3300 Braunschweig Continuously working sugar centrifuge
FR2274360A1 (en) * 1974-06-17 1976-01-09 Fives Cail Babcock IMPROVEMENTS TO THE SUPPLY DEVICES FOR CONTINUOUS OPERATION CENTRIFUGAL SEPARATORS
DE2436044C3 (en) * 1974-07-26 1986-07-31 Braunschweigische Maschinenbauanstalt AG, 3300 Braunschweig Continuously working sieve centrifuge, especially sugar centrifuge
DE3129392C1 (en) * 1981-07-25 1983-03-31 Braunschweigische Maschinenbauanstalt AG, 3300 Braunschweig Continuously operating sugar centrifuge with springy sugar collecting trays

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Publication number Priority date Publication date Assignee Title
GB2064351A (en) * 1979-12-04 1981-06-17 Braunschweigische Masch Bau Continuously operating centrifugal strainer for sugar massecuites
EP0152855A2 (en) * 1984-02-17 1985-08-28 Hein, Lehmann Aktiengesellschaft Continuously operating centrifuge

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19809863A1 (en) * 1998-03-07 1999-09-09 Dorr Oliver Deutschland Continuous centrifuge for the separation of sugar fillmass
DE19809863C2 (en) * 1998-03-07 2001-11-22 Dorr Oliver Deutschland Continuous centrifuge
WO2010130827A1 (en) * 2009-05-15 2010-11-18 Braunschweigische Maschinenbauanstalt Ag Continuous centrifuge

Also Published As

Publication number Publication date
BR9105194A (en) 1992-07-21
ZA919428B (en) 1992-09-30
DE59005216D1 (en) 1994-05-05
US5244502A (en) 1993-09-14
AU8836391A (en) 1993-04-01
AU640835B2 (en) 1993-09-02
EP0487780B1 (en) 1994-03-30
JPH0763654B2 (en) 1995-07-12
JPH04267955A (en) 1992-09-24

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