EP1056545A1 - Screw-type solid bowl centrifuge with multistage planetary gear train - Google Patents

Screw-type solid bowl centrifuge with multistage planetary gear train

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Publication number
EP1056545A1
EP1056545A1 EP99902523A EP99902523A EP1056545A1 EP 1056545 A1 EP1056545 A1 EP 1056545A1 EP 99902523 A EP99902523 A EP 99902523A EP 99902523 A EP99902523 A EP 99902523A EP 1056545 A1 EP1056545 A1 EP 1056545A1
Authority
EP
European Patent Office
Prior art keywords
drum
gear
bearing
gear train
stages
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
EP99902523A
Other languages
German (de)
French (fr)
Other versions
EP1056545B1 (en
EP1056545B2 (en
Inventor
Hans-Joachim Beyer
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
GEA Mechanical Equipment GmbH
Original Assignee
Westfalia Separator GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
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Application filed by Westfalia Separator GmbH filed Critical Westfalia Separator GmbH
Publication of EP1056545A1 publication Critical patent/EP1056545A1/en
Publication of EP1056545B1 publication Critical patent/EP1056545B1/en
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
    • B04B—CENTRIFUGES
    • B04B1/00—Centrifuges with rotary bowls provided with solid jackets for separating predominantly liquid mixtures with or without solid particles
    • B04B1/20—Centrifuges with rotary bowls provided with solid jackets for separating predominantly liquid mixtures with or without solid particles discharging solid particles from the bowl by a conveying screw coaxial with the bowl axis and rotating relatively to the bowl
    • B04B1/2016—Driving control or mechanisms; Arrangement of transmission gearing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
    • B04B—CENTRIFUGES
    • B04B1/00—Centrifuges with rotary bowls provided with solid jackets for separating predominantly liquid mixtures with or without solid particles
    • B04B1/20—Centrifuges with rotary bowls provided with solid jackets for separating predominantly liquid mixtures with or without solid particles discharging solid particles from the bowl by a conveying screw coaxial with the bowl axis and rotating relatively to the bowl
    • B04B1/2016—Driving control or mechanisms; Arrangement of transmission gearing
    • B04B2001/2025—Driving control or mechanisms; Arrangement of transmission gearing with drive comprising a planetary gear

Definitions

  • the invention relates to a solid-bowl screw centrifuge with a drivable drum which is mounted on the two end faces and can be rotated about a horizontal axis, and a co-screw which is rotatably mounted coaxially therein and can be driven with a differential speed relative to the drum
  • the Drive has a multi-stage epicyclic gear, the housing shell is connected to the drum shell and the output shaft is connected to the screw conveyor.
  • the solid With the help of a differential speed between the drum and the screw, the solid is guided to the solid discharge at one end of the drum.
  • the housing of the multi-stage epicyclic gear rotates around the horizontal axis of rotation of the drum during operation. Since the gearbox is connected to the drum shell, these components have the same speed.
  • Solid-bowl screw centrifuges are known in which the planetary gear with the drum is arranged between the drum bearings or outside the drive-side drum bearing.
  • a screw centrifuge is known from US Pat. No. 5,403,260 in which the planetary gear is arranged outside the drum bearing. This is about it is a so-called "external gear".
  • the disadvantage is that both the hub of the housing of the epicyclic gear and the gear output shaft must be passed through the drive-side bearing of the drum. The resulting bearing size leads to problems at high speeds of the drum and the screw conveyor.
  • the natural frequency of the drum is one of the limiting variables for the maximum possible drum speed.
  • the internal gear reduces the maximum overall length of the drum by the gear width. Because of the high torques in large screw centrifuges, it may be necessary to design the epicyclic gear in several stages, which increases their width. On the other hand, the high torques also lead to such large diameters of the gearbox output shaft that an external gearbox is out of the question because of the disadvantageous bearing size associated therewith.
  • the invention has for its object to design a screw centrifuge of the type mentioned so that high peripheral speeds of the drum and large drum diameters are possible when using multi-stage planetary gears.
  • Drum bearing is provided between two stages of the multi-stage epicyclic gear.
  • the housing of the multi-stage epicyclic gear in the region of the gear-side drum bearing has a cylindrical intermediate piece with a reduced diameter compared to the housing parts of the gear stages.
  • the gear-side drum bearing receives the intermediate piece and a shaft connecting the gear stages. The diameter of the intermediate piece thus corresponds to the inside diameter of a suitable drum bearing.
  • At least the last gear stage with the greatest torque with the drum is arranged between the drum bearings, so that the transmission output shaft with the largest diameter does not have to be passed through the gear-side drum bearing and the gear width only partially affects the bearing spacing of the drum .
  • the other gear stages can be designed as external gear components.
  • the gear housing must be constructed in two parts so that the bearing can be mounted in the area of the intermediate piece.
  • FIG. 1 shows a schematic representation of a known screw centrifuge with an internal, multi-stage epicyclic gear
  • FIG. 2 shows a known screw centrifuge with an external, multi-stage planetary gear in a schematic representation
  • FIG. 3 shows an embodiment according to the invention in a schematic illustration
  • Figure 4 shows a known screw centrifuge, in contrast to the
  • the epicyclic gear is arranged at the end of the drum at which the liquid is discharged
  • 5 shows a known screw centrifuge, in which, in contrast to the embodiment according to FIG. 2, the epicyclic gear is provided at the end of the drum at which the liquid is dropped and
  • FIG. 6 shows an embodiment according to the invention with the planetary gear at the liquid end of the drum.
  • the solid-bowl screw centrifuges which are shown in FIGS. 1 to 6, have a drum 1 which is rotatably mounted about a horizontal axis 2.
  • a screw conveyor not shown, is arranged coaxially in the drum and is likewise rotatably mounted about the horizontal axis 2.
  • the screw conveyor is driven via an output shaft 3 of a multi-stage epicyclic gear 4, which is arranged in the solid bowl screw centrifuge according to FIG. 1 with the drum 1 between the bearings 5, 6.
  • the epicyclic gear 4 is provided outside the gear-side bearing 5.
  • FIGS. 3 and 6 Embodiments of the construction according to the invention are shown in FIGS. 3 and 6.
  • the gear-side drum bearing 5 is arranged between the stages 7 and 8 of the epicyclic gear 9.
  • the gear housing 10, which rotates during operation, is connected to the drum shell 1 1 and has a cylindrical intermediate piece 1 2 in the area of the gear-side drum bearing 5, the diameter of which is reduced compared to the housing parts of the gear stages 7 and 8.
  • the bearing 5 thus receives the intermediate piece 1 2 and a shaft 1 3 connecting the gear stages 7 and 8.
  • the intermediate piece 1 2 is divided transversely to the axis of rotation 2, specifically for reasons of assembly.
  • the drum shell 11 can have a diameter which is greater than 1,000 mm.
  • the ratio between the center distance L of the bearings 5 and 6 the drum 1 and the diameter D of the drum shell 1 1 (L / D) can be greater than 3.8.
  • the torque between the drum and the screw conveyor can be, for example, 1 00,000 Nm.
  • the peripheral speed at the inner radius of the drum shell 1 1 can be greater than 105 m / s.
  • the arrangement according to the invention of the gear-side drum bearing between two stages of a multi-stage epicyclic gear is particularly suitable for very large decanters.
  • the epicyclic gear can be provided with the arrangement of the drum bearing 5 between the gear stages on the solids-side or on the liquid-side drum end.

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  • Centrifugal Separators (AREA)

Abstract

The invention relates to a screw-type centrifuge configured in such a way that the use of multistage planetary gear trains allows for high peripheral speeds of the drum and large drum diameters. According to the invention the drum bearing (5) on the gear train side is positioned between two stages (7, 8) of the multistage planetary gear train. The housing jacket (10) of the multistage planetary gear train, which is connected to the drum jacket (11) and therefore rotates at the same r.p.m., has an intermediate piece (12) which has a small diameter and is housed by the drum bearing (5) together with a shaft (13) connecting the gear train stages (7 and 8). The system provided for in the invention, according to which the drum bearing (5) on the gear train side is positioned between two stages of the multistage planetary gear train, is used in the case of very large decanters for which the drum rotates at very high peripheral speeds.

Description

Vollmantel-Schneckenzentrifuge mit mehrstufigem Umlaufgetriebe Solid bowl screw centrifuge with multi-stage planetary gear
Die Erfindung bezieht sich auf eine Vollmantel-Schneckenzentrifuge mit einer an den beiden Stirnseiten gelagerten, um eine horizontale Achse drehbaren, antreibbaren Trommel und einer koaxial darin drehbar gelagerten, mit einer Diffe- renzdrehzahl gegenüber der Trommel antreibbaren Förderschnecke, wobei derThe invention relates to a solid-bowl screw centrifuge with a drivable drum which is mounted on the two end faces and can be rotated about a horizontal axis, and a co-screw which is rotatably mounted coaxially therein and can be driven with a differential speed relative to the drum
Antrieb ein mehrstufiges Umlaufgetriebe aufweist, dessen Gehäusemantel mit dem Trommelmantel und dessen Abtriebswelle mit der Förderschnecke verbunden ist.Drive has a multi-stage epicyclic gear, the housing shell is connected to the drum shell and the output shaft is connected to the screw conveyor.
Mit Hilfe einer Differenzdrehzahl zwischen Trommel und Schnecke wird der Feststoff zum Feststoffaustrag an einem stirnseitigen Trommelende geführt.With the help of a differential speed between the drum and the screw, the solid is guided to the solid discharge at one end of the drum.
Das Gehäuse des mehrstufigen Umlaufgetriebes rotiert im Betrieb um die horizontale Drehachse der Trommel . Da das Getriebegehäuse mit dem Trommelmantel verbunden ist, haben diese Bauteile die gleiche Drehzahl.The housing of the multi-stage epicyclic gear rotates around the horizontal axis of rotation of the drum during operation. Since the gearbox is connected to the drum shell, these components have the same speed.
Es sind Vollmantel-Schneckenzentrifugen bekannt, bei denen das Umlaufge- triebe mit der Trommel zwischen den Trommellagern oder außerhalb des an- triebsseitigen Trommellagers angeordnet ist.Solid-bowl screw centrifuges are known in which the planetary gear with the drum is arranged between the drum bearings or outside the drive-side drum bearing.
Aus der US-PS 3 061 1 81 ist eine Schneckenzentrifuge bekannt, bei der das Umlaufgetriebe mit der Trommel zwischen den Trommellagern vorgesehen ist. Bei dieser Schneckenzentrifuge mit dem sog . "innenliegenden Getriebe" kann zwar das antriebsseitige Lager relativ kleingehalten werden, jedoch wächst derFrom US-PS 3 061 1 81 a screw centrifuge is known in which the planetary gear with the drum is provided between the drum bearings. With this screw centrifuge with the so-called "Internal gearbox", the drive-side bearing can be kept relatively small, but the grows
Abstand zwischen den beiden Lagern um die Baubreite des Umlaufgetriebes.Distance between the two bearings by the width of the epicyclic gear.
Aus der US-PS 5 403 260 ist eine Schneckenzentrifuge bekannt, bei der das Umlaufgetriebe außerhalb der Trommellagerung angeordnet ist. Hierbei handelt es sich um ein sog. "außenliegendes Getriebe" . Nachteilig ist, daß sowohl die Nabe des Gehäuses des Umlaufgetriebes als auch die Getriebeabtriebswelle durch das antriebsseitige Lager der Trommel hindurchgeführt werden müssen. Die sich daraus ergebende Lagergröße führt bei hohen Drehzahlen der Trommel und der Förderschnecke zu Problemen.A screw centrifuge is known from US Pat. No. 5,403,260 in which the planetary gear is arranged outside the drum bearing. This is about it is a so-called "external gear". The disadvantage is that both the hub of the housing of the epicyclic gear and the gear output shaft must be passed through the drive-side bearing of the drum. The resulting bearing size leads to problems at high speeds of the drum and the screw conveyor.
Bei großen Schneckenzentrifugen ist die Eigenfrequenz der Trommel eine der limitierenden Größen für die maximal mögliche Trommeldrehzahl. Je größer der Lagerabstand L zwischen den Trommellagern ist, desto niedriger ist die Eigenfrequenz (0 der Trommel, wodurch die maximal mögliche Betriebsdrehzahl der Trommel reduziert wirdWith large screw centrifuges, the natural frequency of the drum is one of the limiting variables for the maximum possible drum speed. The larger the bearing distance L between the drum bearings, the lower the natural frequency (0 of the drum, which reduces the maximum possible operating speed of the drum
ω ~ 1 /L2.ω ~ 1 / L 2 .
Aus verfahrenstechnischen Gründen ist im allgemeinen ein großes Verhältnis von Trommellänge zum Trommeldurchmesser D erwünscht (L/D).For procedural reasons, a large ratio of drum length to drum diameter D is generally desired (L / D).
Durch das innenliegende Getriebe wird wegen der vorgenannten Problematik die maximale Baulänge der Trommel um die Getriebebreite reduziert. Wegen der hohen Drehmomente bei großen Schneckenzentrifugen kann es erforderlich sein, die Umlaufgetriebe mehrstufig auszuführen, wodurch deren Breite noch zunimmt. Andererseits führen die hohen Drehmomente aber auch zu so großen Durchmessern der Getriebeabtriebswelle, daß ein außenliegendes Getriebe we- gen der damit verbundenen nachteiligen Lagergröße nicht in Frage kommt.Due to the above-mentioned problem, the internal gear reduces the maximum overall length of the drum by the gear width. Because of the high torques in large screw centrifuges, it may be necessary to design the epicyclic gear in several stages, which increases their width. On the other hand, the high torques also lead to such large diameters of the gearbox output shaft that an external gearbox is out of the question because of the disadvantageous bearing size associated therewith.
Der Erfindung liegt die Aufgabe zugrunde, eine Schneckenzentrifuge der eingangs genannten Art so auszubilden, daß bei Verwendung von mehrstufigen Umlaufgetrieben hohe Umfangsgeschwindigkeiten der Trommel und große Trommeldurchmesser möglich sind.The invention has for its object to design a screw centrifuge of the type mentioned so that high peripheral speeds of the drum and large drum diameters are possible when using multi-stage planetary gears.
Diese Aufgabe wird erfindungsgemäß dadurch gelöst, daß das getriebeseitigeThis object is achieved in that the transmission side
Trommellager zwischen zwei Stufen des mehrstufigen Umlaufgetriebes vorgesehen ist. Bei einer vorteilhaften Ausführungsform weist das Gehäuse des mehrstufigen Umlaufgetriebes im Bereich des getriebeseitigen Trommellagers ein zylindrisches Zwischenstück mit gegenüber den Gehäuseteilen der Getriebestufen reduziertem Durchmesser auf. Das getriebeseitige Trommellager nimmt das Zwischenstück und eine die Getriebestufen verbindende Welle auf. Der Durchmesser des Zwischenstücks entspricht somit dem Innendurchmesser eines geeigneten Trommellagers.Drum bearing is provided between two stages of the multi-stage epicyclic gear. In an advantageous embodiment, the housing of the multi-stage epicyclic gear in the region of the gear-side drum bearing has a cylindrical intermediate piece with a reduced diameter compared to the housing parts of the gear stages. The gear-side drum bearing receives the intermediate piece and a shaft connecting the gear stages. The diameter of the intermediate piece thus corresponds to the inside diameter of a suitable drum bearing.
Bei der erfindungsgemäßen Ausführung ist zumindest die letzte Getriebestufe mit dem größten Drehmoment mit der Trommel zwischen den Trommellagern angeordnet, so daß die Getriebeabtriebswelle mit dem größten Durchmesser nicht durch das getriebeseitige Trommellager geführt werden muß und sich die Getriebebaubreite nur zum Teil auf den Lagerabstand der Trommel auswirkt. Die weiteren Getriebestufen können als außenliegender Getriebeanteil ausgeführt werden. Das Getriebegehäuse muß zweiteilig ausgebildet sein, damit das Lager im Bereich des Zwischenstücks montiert werden kann.In the embodiment according to the invention, at least the last gear stage with the greatest torque with the drum is arranged between the drum bearings, so that the transmission output shaft with the largest diameter does not have to be passed through the gear-side drum bearing and the gear width only partially affects the bearing spacing of the drum . The other gear stages can be designed as external gear components. The gear housing must be constructed in two parts so that the bearing can be mounted in the area of the intermediate piece.
Weitere Merkmale der Erfindung ergeben sich aus den Unteransprüchen.Further features of the invention emerge from the subclaims.
Ein Ausführungsbeispiel der Erfindung wird im folgenden unter Bezugnahme auf die Zeichnung beschrieben.An embodiment of the invention is described below with reference to the drawing.
Es zeigen:Show it:
Figur 1 in schematischer Darstellung eine bekannte Schneckenzentrifuge mit einem innenliegenden, mehrstufigen Umlaufgetriebe,1 shows a schematic representation of a known screw centrifuge with an internal, multi-stage epicyclic gear,
Figur 2 eine bekannte Schneckenzentrifuge mit außenliegendem, mehrstufigen Umlaufgetriebe in schematischer Darstellung,FIG. 2 shows a known screw centrifuge with an external, multi-stage planetary gear in a schematic representation,
Figur 3 eine erfindungsgemäße Ausführung in schematischer Darstellung,FIG. 3 shows an embodiment according to the invention in a schematic illustration,
Figur 4 eine bekannte Schneckenzentrifuge, bei der im Gegensatz zu derFigure 4 shows a known screw centrifuge, in contrast to the
Ausführung nach der Fig. 1 das Umlaufgetriebe an dem Ende der Trommel angeordnet ist, an dem die Flüssigkeit ausgetragen wird, Figur 5 eine bekannte Schneckenzentrifuge, bei der im Gegensatz zu der Aus führung nach der Fig. 2 das Umlaufgetriebe an dem Ende der Trommel vorgesehen ist, an dem die Flüssigkeit abgeworfen wird und1, the epicyclic gear is arranged at the end of the drum at which the liquid is discharged, 5 shows a known screw centrifuge, in which, in contrast to the embodiment according to FIG. 2, the epicyclic gear is provided at the end of the drum at which the liquid is dropped and
Figur 6 eine erfindungsgemäße Ausführung mit dem Umlaufgetriebe am flüs- sigkeitsseitigen Trommelende.FIG. 6 shows an embodiment according to the invention with the planetary gear at the liquid end of the drum.
Die Vollmantel-Schneckenzentrifugen, die in den Fig. 1 bis 6 aufgezeigt sind, weisen eine Trommel 1 auf, die um eine horizontale Achse 2 drehbar gelagert ist. In der Trommel ist eine nicht dargestellte Förderschnecke koaxial angeordnet und ebenfalls um die horizontale Achse 2 drehbar gelagert. Der Antrieb der Förderschnecke erfolgt über eine Abtriebswelle 3 eines mehrstufigen Umlaufgetriebes 4, das bei der Vollmantel-Schneckenzentrifuge nach der Fig. 1 mit der Trommel 1 zwischen den Lagern 5,6 angeordnet ist.The solid-bowl screw centrifuges, which are shown in FIGS. 1 to 6, have a drum 1 which is rotatably mounted about a horizontal axis 2. A screw conveyor, not shown, is arranged coaxially in the drum and is likewise rotatably mounted about the horizontal axis 2. The screw conveyor is driven via an output shaft 3 of a multi-stage epicyclic gear 4, which is arranged in the solid bowl screw centrifuge according to FIG. 1 with the drum 1 between the bearings 5, 6.
Bei der Ausführung nach der Fig. 2 ist das Umlaufgetriebe 4 außerhalb des getriebeseitigen Lagers 5 vorgesehen.In the embodiment according to FIG. 2, the epicyclic gear 4 is provided outside the gear-side bearing 5.
Ausführungsbeispiele der erfindungsgemäßen Konstruktion sind in den Fig. 3 und 6 aufgezeigt. Bei diesen Ausführungen ist das getriebeseitige Trommellager 5 zwischen den Stufen 7 und 8 des Umlaufgetriebes 9 angeordnet. Das Getriebegehäuse 10, das im Betrieb umläuft, ist mit dem Trommelmantel 1 1 verbunden und weist im Bereich des getriebeseitigen Trommellagers 5 ein zylindri- sches Zwischenstück 1 2 auf, dessen Durchmesser gegenüber den Gehäuseteilen der Getriebestufen 7 und 8 reduziert ist. Das Lager 5 nimmt somit das Zwischenstück 1 2 und eine die Getriebestufen 7 und 8 verbindende Welle 1 3 auf.Embodiments of the construction according to the invention are shown in FIGS. 3 and 6. In these versions, the gear-side drum bearing 5 is arranged between the stages 7 and 8 of the epicyclic gear 9. The gear housing 10, which rotates during operation, is connected to the drum shell 1 1 and has a cylindrical intermediate piece 1 2 in the area of the gear-side drum bearing 5, the diameter of which is reduced compared to the housing parts of the gear stages 7 and 8. The bearing 5 thus receives the intermediate piece 1 2 and a shaft 1 3 connecting the gear stages 7 and 8.
Das Zwischenstück 1 2 ist quer zur Drehachse 2 geteilt und zwar aus Montage- gründen.The intermediate piece 1 2 is divided transversely to the axis of rotation 2, specifically for reasons of assembly.
Bei der erfindungsgemäßen Gestaltung der Vollmantel-Schneckenzentrifuge kann der Trommelmantel 1 1 einen Durchmesser aufweisen, der größer als 1 .000 mm ist. Das Verhältnis zwischen dem Achsabstand L der Lager 5 und 6 der Trommel 1 und dem Durchmesser D des Trommelmantels 1 1 (L/D) kann größer sein als 3,8. Das Drehmoment zwischen Trommel und Förderschnecke kann z.B. 1 00.000 Nm betragen. Die Umfangsgeschwindigkeit am Innenradius des Trommelmantels 1 1 kann größer sein als 105 m/s.In the design of the solid bowl screw centrifuge according to the invention, the drum shell 11 can have a diameter which is greater than 1,000 mm. The ratio between the center distance L of the bearings 5 and 6 the drum 1 and the diameter D of the drum shell 1 1 (L / D) can be greater than 3.8. The torque between the drum and the screw conveyor can be, for example, 1 00,000 Nm. The peripheral speed at the inner radius of the drum shell 1 1 can be greater than 105 m / s.
Die erfindungsgemäße Anordnung des getriebeseitigen Trommellagers zwischen zwei Stufen eines mehrstufigen Umlaufgetriebes eignet sich insbesondere für sehr große Dekanter.The arrangement according to the invention of the gear-side drum bearing between two stages of a multi-stage epicyclic gear is particularly suitable for very large decanters.
Aus den Darstellungen der erfindungsgemäßen Schneckenzentrifugen in den Fig. 3 und 6 ergibt sich, daß das Umlaufgetriebe mit der Anordnung des Trom- mellagers 5 zwischen den Getriebestufen am feststoffseitigen oder am flüssig- keitsseitigen Trommelende vorgesehen werden kann. 3 and 6 that the epicyclic gear can be provided with the arrangement of the drum bearing 5 between the gear stages on the solids-side or on the liquid-side drum end.
BezugszeichenlisteReference list
1 Trommel1 drum
2 Achse2 axis
3 Abtriebswelle3 output shaft
4 Umlaufgetriebe4 epicyclic gear
5 Lager5 bearings
6 Lager6 bearings
7 Stufe7 level
8 Stufe8 level
9 Umlaufgetriebe9 epicyclic gear
1 0 Getriebegehäuse1 0 gearbox
1 1 Trommelmantel1 1 drum jacket
1 2 Zwischenstück1 2 intermediate piece
1 3 Welle 1 3 wave

Claims

Patentansprüche claims
1 . Vollmantel-Schneckenzentrifuge mit einer an den beiden Stirnseiten gelagerten, um eine horizontale Achse drehbaren, antreibbaren Trommel und einer koaxial darin drehbar gelagerten, mit einer Differenzdrehzahl gegenüber der Trommel antreibbaren Förderschnecke, wobei der Antrieb ein mehrstufiges Umlaufgetriebe aufweist, dessen Gehäusemantel mit dem Trommelmantel und dessen Abtriebswelle mit der Förderschnecke verbunden ist, dadurch gekennzeichnet, daß das getriebesei- tige Trommellager (5) zwischen zwei Stufen (7,8) des mehrstufigen1 . Solid-bowl screw centrifuge with a drivable drum mounted on the two end faces, rotatable about a horizontal axis, and a coaxial rotatably mounted screw conveyor, which can be driven with a differential speed relative to the drum, the drive having a multi-stage planetary gear, its casing with the drum casing and its Output shaft is connected to the screw conveyor, characterized in that the gear-side drum bearing (5) between two stages (7,8) of the multi-stage
Umlaufgetriebes vorgesehen ist.Epicyclic gear is provided.
2. Vollmantel-Schneckenzentrifuge nach Anspruch 1 , dadurch gekennzeichnet, daß im Bereich des getriebeseitigen Tromellagers (5) das Gehäuse (1 0) des mehrstufigen Umlaufgetriebes ein zylindrisches Zwi- schenstück (1 2) mit gegenüber den Gehäuseteilen der Getriebestufen reduziertem Durchmesser aufweist und das Lager (5) das Zwischenstück ( 1 2) und eine die Getriebestufen (7,8) verbindende Welle (1 3) aufnimmt.2. Solid bowl screw centrifuge according to claim 1, characterized in that in the area of the gear-side drum bearing (5) the housing (1 0) of the multi-stage epicyclic gear has a cylindrical intermediate piece (1 2) with a reduced diameter compared to the housing parts of the gear stages and that Bearing (5) receives the intermediate piece (1 2) and a shaft (1 3) connecting the gear stages (7, 8).
3. Vollmantel-Schneckenzentrifuge nach Anspruch 2, dadurch gekenn- zeichnet, daß das Zwischenstück (1 2) quer zur Drehachse (2) geteilt ist.3. Solid bowl screw centrifuge according to claim 2, characterized in that the intermediate piece (1 2) is divided transversely to the axis of rotation (2).
4. Vollmantel-Schneckenzentrifuge nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß der Trommelmantel einen Innendurchmesser D aufweist, der größer ist als 1 .000 mm, das Verhältnis zwischen dem Achsabstand L der Lager (5,6) der Trommel und dem4. Solid bowl screw centrifuge according to one of the preceding claims, characterized in that the drum shell has an inner diameter D which is greater than 1,000 mm, the ratio between the center distance L of the bearings (5, 6) of the drum and the
Durchmesser D des Trommelmantels (1 1 ) (L/D) größer ist als 3,8, das Drehmoment zwischen der Trommel und der Förderschnecke groß ist (z.B. 100.000 Nm) und die Umfangsgeschwindigkeit am Innenradius des Trommelmantels (1 1 ) größer ist als 105 m/s. Diameter D of the drum shell (1 1) (L / D) is greater than 3.8, the torque between the drum and the screw conveyor is large (e.g. 100,000 Nm) and the peripheral speed at the inner radius of the drum shell (1 1) is greater than 105 m / s.
EP99902523A 1998-02-17 1999-01-07 Screw-type solid bowl centrifuge with multistage planetary gear train Expired - Lifetime EP1056545B2 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19806374 1998-02-17
DE19806374A DE19806374C1 (en) 1998-02-17 1998-02-17 Split drive for large centrifugal decanter
PCT/EP1999/000055 WO1999042220A1 (en) 1998-02-17 1999-01-07 Screw-type solid bowl centrifuge with multistage planetary gear train

Publications (3)

Publication Number Publication Date
EP1056545A1 true EP1056545A1 (en) 2000-12-06
EP1056545B1 EP1056545B1 (en) 2002-06-05
EP1056545B2 EP1056545B2 (en) 2012-08-01

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP99902523A Expired - Lifetime EP1056545B2 (en) 1998-02-17 1999-01-07 Screw-type solid bowl centrifuge with multistage planetary gear train

Country Status (7)

Country Link
US (1) US6387032B1 (en)
EP (1) EP1056545B2 (en)
JP (1) JP4212236B2 (en)
DE (2) DE19806374C1 (en)
DK (1) DK1056545T4 (en)
NO (1) NO319825B1 (en)
WO (1) WO1999042220A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2032264B2 (en) † 2006-06-23 2019-06-26 GEA Mechanical Equipment GmbH Helical conveyor centrifuge having a drive device

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3768908B2 (en) 2001-03-27 2006-04-19 キヤノン株式会社 Electron emitting device, electron source, image forming apparatus
US6589154B2 (en) * 2001-05-30 2003-07-08 Alfa Laval Inc. Decanter centrifuge with a gear box mounted on the bowl
ATE309049T1 (en) * 2003-05-19 2005-11-15 Andritz Guinard S A S DRIVE SYSTEM OF A CENTRIFUGE
DE102006028803A1 (en) * 2006-06-23 2007-12-27 Westfalia Separator Ag screw centrifuge
WO2012034722A2 (en) * 2010-09-13 2012-03-22 Hiller Gmbh Drive device in a helical conveyor centrifuge

Family Cites Families (42)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202812C (en) *
US1572612A (en) * 1925-06-02 1926-02-09 Laughlin Filter Corp Centrifugal separator
US1655426A (en) * 1926-02-23 1928-01-10 Laughlin Filter Corp Centrifugal machine
US1710315A (en) * 1926-10-30 1929-04-23 Laughlin Filter Corp Centrifugal separator
US1882383A (en) * 1930-08-11 1932-10-11 Hallitt William Continuous discharge centrifugal machine
US1962461A (en) * 1933-04-10 1934-06-12 Eric G Piper Differential drive for centrifuges and scrapers
US2043661A (en) * 1934-08-10 1936-06-09 Andrew F Howe Centrifugal driving mechanism
US2458706A (en) * 1945-05-14 1949-01-11 Centrifugal & Mechanical Ind I Differential gearing for centrifugal machines
US2649816A (en) * 1949-03-31 1953-08-25 Knowles Associates Transmission and reaction torque device
GB776263A (en) * 1952-05-19 1957-06-05 Int Comb Ltd Improvements in or relating to centrifuging machines
DE1031221B (en) * 1954-02-13 1958-05-29 Paul Spiess Dr Drive for the discharge screw of a screw centrifuge
NL190819C (en) * 1954-09-16 Nuovo Pignone Spa Speed variator for a dobby loom.
US3061181A (en) * 1958-11-28 1962-10-30 Sharples Corp Centrifuges
DE1087086B (en) * 1959-03-28 1960-08-11 Krupp Dolberg G M B H Screw centrifuge
US3187997A (en) * 1962-02-12 1965-06-08 Ametek Inc Horizontal type centrifugal separator
US3290962A (en) * 1962-10-17 1966-12-13 Giddings & Lewis Planetary transmission
DE1532706A1 (en) * 1967-03-10 1970-07-09 Hitachi Shipbuilding Eng Co Centrifugal device with differential gear
US3428247A (en) * 1967-09-26 1969-02-18 Combustion Eng Centrifuge lubricating and seal system
US3419211A (en) * 1967-10-23 1968-12-31 Hitachi Shipbuilding Eng Co Centrifugal machine with differential drive
DE1967084A1 (en) * 1968-04-18 1977-04-21 Martini Mario De CENTRIFUGE
FR2070485A5 (en) * 1969-12-05 1971-09-10 Defontenay Paul Control system for centrifuge - to produce differential rotation
US3734399A (en) * 1971-05-28 1973-05-22 Beloit Corp Differential scroll drive
CH566817A5 (en) * 1973-07-21 1975-09-30 Cyphelly Ivan J
US4132131A (en) * 1977-07-14 1979-01-02 Curtiss-Wright Corporation Free-floating planetary transmission with contra-rotating dual output shafts
US4129249A (en) * 1977-08-17 1978-12-12 Baker Perkins Inc. Centrifuge for separating solids and liquids
DE2811887C2 (en) * 1978-03-18 1991-07-18 Westfalia Separator Ag, 4740 Oelde Drive for a continuously working screw centrifuge
DE2849547A1 (en) * 1978-11-15 1980-05-22 Kloeckner Humboldt Deutz Ag SNAIL CENTRIFUGE
DE3142779C2 (en) * 1981-10-28 1986-03-20 Werner Prof. Dr. 6740 Landau Stahl Solid bowl screw centrifuge
SU1168293A1 (en) * 1982-10-20 1985-07-23 Комплексный Научно-Исследовательский И Проектно-Технологический Институт Обогащения Твердых Горючих Ископаемых Filtering centrifuge
DK610486A (en) * 1986-12-17 1988-06-18 Danske Sukkerfab GEAR comprising an input shaft and an output shaft coaxially positioned
FR2610058A1 (en) * 1987-01-26 1988-07-29 Maag France Power transmission device with speed reduction between a rotating assembly and a shaft mounted coaxially inside the latter
CH680836A5 (en) * 1989-07-21 1992-11-30 Elatronic Ag
FR2665377B1 (en) * 1990-08-02 1993-09-03 Guinard Centrifugation CENTRIFUGAL DECANTER WITH ENERGY RECOVERY.
DE4028441A1 (en) * 1990-09-07 1992-03-12 Westfalia Separator Ag SCroll decanter centrifuge with variable bowl-scroll speed - utilising an ancillary variable speed electric pump, to provide constant flow, in the hydraulic control feedback circuit
US5529566A (en) * 1990-12-11 1996-06-25 Weil; Hans A. Method for controlling a solid-shell centrifuge
US5403260A (en) * 1993-06-04 1995-04-04 Hutchinson-Hayes International Automatic frequency controlled motor backdrive
DE4330905C2 (en) * 1993-09-11 1995-06-14 Fresenius Ag Locking device for a bearing arrangement of a separation chamber of a centrifuge
DE9409109U1 (en) * 1994-06-03 1995-09-28 Flottweg Gmbh, 84137 Vilsbiburg Centrifuge with stepless control of the differential speed between the drum and broaching tool
US5772573A (en) * 1996-02-26 1998-06-30 Baker Hughes Incorporated Decanter centrifuge and gear box with harmonic drive and associated operating method
FR2746675B1 (en) * 1996-03-29 1998-05-07 Guinard Centrifugation REDEX MODULE CENTRIFUGAL DECANTER
US6155964A (en) * 1999-03-01 2000-12-05 Hutchison-Hayes International, Inc. Centrifuge drive system providing optimum performance
US6056685A (en) * 1999-05-17 2000-05-02 G-Force Llc Centrifuge having selectively operable harmonic drive for scroll conveyor

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO9942220A1 *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2032264B2 (en) † 2006-06-23 2019-06-26 GEA Mechanical Equipment GmbH Helical conveyor centrifuge having a drive device

Also Published As

Publication number Publication date
EP1056545B1 (en) 2002-06-05
DE59901620D1 (en) 2002-07-11
WO1999042220A1 (en) 1999-08-26
US6387032B1 (en) 2002-05-14
EP1056545B2 (en) 2012-08-01
NO20004078D0 (en) 2000-08-15
JP2002503549A (en) 2002-02-05
DE19806374C1 (en) 1999-07-01
DK1056545T3 (en) 2002-09-16
JP4212236B2 (en) 2009-01-21
DK1056545T4 (en) 2012-10-29
NO319825B1 (en) 2005-09-19
NO20004078L (en) 2000-08-15

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