EP1345700B1 - Solid-bowl screw centrifuge - Google Patents

Solid-bowl screw centrifuge Download PDF

Info

Publication number
EP1345700B1
EP1345700B1 EP01271978A EP01271978A EP1345700B1 EP 1345700 B1 EP1345700 B1 EP 1345700B1 EP 01271978 A EP01271978 A EP 01271978A EP 01271978 A EP01271978 A EP 01271978A EP 1345700 B1 EP1345700 B1 EP 1345700B1
Authority
EP
European Patent Office
Prior art keywords
drum
solid
plates
screw
centrifuge according
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP01271978A
Other languages
German (de)
French (fr)
Other versions
EP1345700A1 (en
Inventor
Jürgen HERMEIER
Paul BRÜNING
Ludger HORSTKÖTTER
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
GEA Mechanical Equipment GmbH
Original Assignee
Westfalia Separator GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Westfalia Separator GmbH filed Critical Westfalia Separator GmbH
Publication of EP1345700A1 publication Critical patent/EP1345700A1/en
Application granted granted Critical
Publication of EP1345700B1 publication Critical patent/EP1345700B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
    • B04B—CENTRIFUGES
    • B04B1/00—Centrifuges with rotary bowls provided with solid jackets for separating predominantly liquid mixtures with or without solid particles
    • B04B1/20—Centrifuges with rotary bowls provided with solid jackets for separating predominantly liquid mixtures with or without solid particles discharging solid particles from the bowl by a conveying screw coaxial with the bowl axis and rotating relatively to the bowl
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
    • B04B—CENTRIFUGES
    • B04B1/00—Centrifuges with rotary bowls provided with solid jackets for separating predominantly liquid mixtures with or without solid particles
    • B04B1/20—Centrifuges with rotary bowls provided with solid jackets for separating predominantly liquid mixtures with or without solid particles discharging solid particles from the bowl by a conveying screw coaxial with the bowl axis and rotating relatively to the bowl
    • B04B2001/2066—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 with additional disc stacks
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
    • B04B—CENTRIFUGES
    • B04B1/00—Centrifuges with rotary bowls provided with solid jackets for separating predominantly liquid mixtures with or without solid particles
    • B04B1/20—Centrifuges with rotary bowls provided with solid jackets for separating predominantly liquid mixtures with or without solid particles discharging solid particles from the bowl by a conveying screw coaxial with the bowl axis and rotating relatively to the bowl
    • B04B2001/2083—Configuration of liquid outlets

Definitions

  • the invention relates to a solid bowl screw centrifuge according to the preamble of claim 1.
  • the separator with the plate package is doing on a larger diameter of the Nozzles the concentrate and in the center the clarified phase derived Outside the Tellervols is a solid space formed on both sides by conical Walls is limited.
  • the outer diameter of this separator is e.g. in the SU 385 629 or the generic GB 998 669 on a larger radius as the outside diameter of the decanter.
  • the invention has the object, the generic centrifuge spallwickehl, that with cost-effective design in a simple way a derivative of the concentrate from the area of the plate to the drum shell out takes place, wherein also resulting from the attachment of the plate packages on the screw body Problems should be avoided.
  • the conical section of the disc as well as the opposite to the conical section The disk formed conical drum lid hereby form a double conically tapering solids or concentrate collection space, the one enables a particularly advantageous discharge of the concentrate towards the drum shell, without the attachment of a separately formed, the decanter downstream Separators on the type of the generic prior art necessary would.
  • the plate package in a cylindrical portion of the drum space arranged with a substantially constant diameter and the plate package is connected directly upstream of the liquid outlet, wherein it rests on the drum lid and / or arranged on this.
  • the plate package rests directly on the drum lid or is attached to this, It does not rotate any more with a differential speed to the drum shell but turns with this one.
  • step on the screw in this connected to the liquid-side drum wall plate insert no interfering short circuits between the clear phase collector of the Tellereisatzes and the solids space outside the plate insert on.
  • Concentrate space of the plate insert is located on the outside of the plate package, in which the diameter of the drum shell is continuously executable and no extension requirement. In this way it is also possible to separate mixtures which are difficult to clarify, e.g. Mixtures with fine suspended matter.
  • the maximum radial extent of the disc is less than that radial extent of the screw blade.
  • the derivative is by means of reached a scraper on the first screw blade, which passes through the plate.
  • the drum lid is made substantially conical, which a particularly simple attachment of the preferably pre-assembled plate package unit on the drum lid allows, especially the plates of the Tellavers also are preferably formed conical.
  • the clear phase collector at a lower Diameter than the outer wall of the screw body is located.
  • Fig. 1 shows a solid bowl centrifuge, which in addition to the not here to be explained further components such as the drive A and the machine frame M a centrifugal drum with a drum shell 1 and with a screw. 2 wherein the screw 2 is a screw body 3 and a Schnekken redesign 3 multiple surrounding screw blade 4 includes. Between Worm threads 4 is a conveyor track for conveying / transporting a processed Slippery trained.
  • the screw body 3 has a slightly stepped in the rear, cylindrical Section 5a and an adjoining conical tapered section 5b on.
  • the cylindrical portion 5a becomes axially at least one of itself in the region of the drum space 6 between the screw body 3 and the Drum shell 1 conical drum lid 7 closed.
  • the S to be centrifuged is through the centrally arranged and co-rotating inlet pipe 12 via a distributor 20 in the drum chamber 6 with the screw 2 and the screw shell 2 surrounding drum shell 1 passed.
  • a distributor 20 in the drum chamber 6 with the screw 2 and the screw shell 2 surrounding drum shell 1 passed.
  • the distributor 20 and the co-rotating Inlet pipe 12 form an advantageous hygienic, largely dense system.
  • the worm 2 rotates at a speed slightly lower or higher than the drum 1 and promotes the ejected solid to the conical section out of the drum for solids discharge.
  • the liquid flows to the cylindrical portion 5a at the rear end the drum 1 and is derived there.
  • the conical plates 11 are substantially conical formed corresponding to the drum cover 7.
  • the plate package has a "distributor shaped "holder 10, which has an inner cylindrical portion 10a and an axially adjoining conical section 10b. Between the conical portion 10b and the drum lid 7 are the actual arranged conical plate 11, which preferably by means of spacers are spaced, which are adapted to the particular application (molded Moldings, punctiform spacers, etc.).
  • the disc package 9 may be formed be that the supply of the centrifugal material to be clarified takes place radially from the outside (not shown here).
  • the derivation of the clear phase is carried out by a manifold 14 at the inner Diameter of the plate 11 in the wall of the cylindrical portion 10b.
  • the manifold 14 is preferably at least partially on a smaller Diameter than the outer wall of the screw body 3, which is a more energy-efficient Operating conditionally as arranging the manifold on a larger Diameter, which is also theoretically conceivable.
  • the manifold 14 finds an axial continuation in a bore 15 of the drum cover, which in a radially outwardly extending drain 16 for the clear phase opens.
  • the concentrate room is located outside on the Tellerpakt 9, the diameter of the drum shell 1 is executed continuously and no extension includes.
  • the concentrate is discharged by means of the screw 2, wherein the screw has a Räumansatz 17 for discharging the solid from the concentrate space, which passes through the disc 8.
  • the diameter of the drum shell 1 is this area formed substantially constant.
  • Applicant's Varipond system can be used (regulating disc 22, which is axially slidable before expiry DE 43 20 265). Also other settings of the mirror as a disc package downstream peeling disc imaginable.
  • bracket 10 and / or on the drum cover 7 are also in an advantageous Way at the side facing away from the plates 9 side of the introduction of the centrifuged material formed in the plate package supporting ribs 23.
  • the centrifugal material 21 passing through the centrifugal material flows at the ribs 23 in the Rising channels 13 of the plate package 9, where the clear phase to the manifold and the Solids are discharged to the outside.
  • the solids are from the Räumansatz 17 taken and promoted by the screw to the conical section 5b.
  • the distance of the plate 11 of the plate package 9 is greater than 0.5 mm and less than 3 mm; measured perpendicular to the surface of the plate.
  • the angle of inclination the conical plate to the drum axis is preferably between 35 ° and 55 °, especially at 40 ° to 50 °.
  • the diameter of the plate 11 at the outer edge is approx. 50 to 75%, in particular 2/3 of the diameter of the free screw area or the drum room.

Landscapes

  • Centrifugal Separators (AREA)

Abstract

The present invention is a solid-bowl screw centrifuge that includes a centrifugal drum. The drum has a drum casing and a screw with a screw body that is surrounded by a screw blade. The screw blade forms at least one screw spiral with a conveying path for transporting material to be centrifuged. The centrifuge also includes an inlet into the centrifugal drum, at least one solid matter discharge and at least one liquid outlet. The centrifuge includes a drum chamber that is axially closed by a drum cover having essentially a conical shape. Further included is a disk stack having at least one conical disk, and the disk stack is mounted to the drum cover directly upstream of the liquid outlet. At least a portion of the disk stack is arranged in a cylindrical section of the drum chamber that has an essentially constant diameter. A screw disk is arranged on the screw body between the drum cover and a first screw spiral.

Description

Die Erfindung betrifft eine Vollmantel-Schneckenzentrifuge nach dem Oberbegriff des Anspruches 1.The invention relates to a solid bowl screw centrifuge according to the preamble of claim 1.

Aus dem Stand der Technik ist es bereits bekannt, auch bei Vollmantel-Schneckenzentrifugen Telleranordnungen vorzusehen. So zeigt die US 5 310 399 Teller, welche auf dem Schneckenkörper angeordnet sind, und zwar zwischen mehreren Schneckengängen der Schnecke, Eine ähnliche Konstruktion ist aus der DE 26 17 692 bekannt. Auch in dieser mehrstufigen Dekanteranordnung liegen die Teller jeweils auf der Schnecke.It is already known from the prior art, even with solid bowl centrifuges To provide plate arrangements. Thus, US Pat. No. 5,310,399 shows plates which are arranged on the worm body, between several Helical flights of the screw, A similar construction is known from DE 26 17 692 known. Also in this multi-stage decanter arrangement, the plates are each on the snail.

Daneben gibt es auch Konstruktionen, bei denen eine Art Tellertrommel der eigentlichen Dekantertrommel nachgeschaltet wird (siehe z.B. die IT 496 031 oder die SU 385 629).In addition, there are also constructions in which a kind of plate drum the actual Downstream of the decanter drum (see, e.g., IT 496 031 or SU 385 629).

Weitere bekannte Kombinationen von Vollmantel-Schneckenzentrifugen mit Tellereinsätzen sind aus der WO 98/45045, der FR 1449 064, der FR 2 532 189 und der GB 998 669 bekannt. Die GB 998 669 bildet den gattungsgmäßen Stand der Technik. Hier ist dem Dekanter als eine Baueinheit eine Art kompletter Separator nachgeschaltet, hierdurch erfolgt die Nachklärung des im Dekanter vorgeklärten Produktes im Grunde wie bei einer vollständig getrennten Reihenschaltung von Dekanter und Separator.Other known combinations of solid bowl centrifugal with plate inserts are from WO 98/45045, FR 1449 064, FR 2 532 189 and GB 998 669. The GB 998 669 forms the gattungsgmäßen state of Technology. Here is the decanter as a unit a kind of complete separator downstream, this is followed by the final clarification of the pre-clarified in the decanter Product basically like a completely separate series connection of Decanter and separator.

Im Separator mit dem Tellerpaket wird dabei auf einem größeren Durchmesser der Düsen das Konzentrat und im Zentrum die geklärte Phase abgeleitet Außerhalb des Tellerpakets ist ein Feststoffraum ausgebildet, der auf beiden Seiten durch konische Wandungen begrenzt wird. Der Außendurchmesser dieses Separators liegt z.B. in der SU 385 629 oder der gattungsgemäßen GB 998 669 auf einem größeren Radius als der Außendurchmesser des Dekanters. In the separator with the plate package is doing on a larger diameter of the Nozzles the concentrate and in the center the clarified phase derived Outside the Tellerpakets is a solid space formed on both sides by conical Walls is limited. The outer diameter of this separator is e.g. in the SU 385 629 or the generic GB 998 669 on a larger radius as the outside diameter of the decanter.

Die eingangs genannten weiteren Dekanterkonstruktionen mit integrierten Tellerpaketen zeichnen sich dadurch aus, daB die Tellerpakete jeweils auf den Schneckenkörpern angebracht sind und somit mit einer Differenzdrehzahl zum Trommelmantel rotieren. Hieraus bedingen sich zwangsläufig störende Spalte, ferner ist keine optimale Ausnutzung des Bauraumes möglich.The aforementioned decanter designs with integrated disc packs are characterized by the fact that the plate packages each on the screw bodies are attached and thus with a differential speed to the drum shell rotate. This inevitably requires disturbing column, furthermore, no optimal utilization of the installation space possible.

Aus der WO 99/52641 (sowie der parallelen US-A-6030332) ist es bekannt, das Tellerpaket direkt dem Flüssigkeitsablauf vorzuschalten, so dass es am Trommeldeckel angeordnet ist. Problematisch ist hier aber, das das Tollerpaket den zylindrischen Bereich der Zentrifuge im wesentlichen ausfüllt, so dass anders als bei der GB-A-998669 nicht einem vollständigen Dekanter, der zunächst seine Wirkung entfaltet, ein Seperator nachgeschaltet wird. Eine ähnliche Konstruktion wie die US-A-6 030 322 zeigt die DE 1 482 721.From WO 99/52641 (as well as the parallel US-A-6030332) it is known that Plate package directly upstream of the liquid drain, so that it on the drum lid is arranged. The problem here is that the Tollerpaket the cylindrical Area of the centrifuge substantially fills, so unlike the GB-A-998669 does not disclose a complete decanter which initially has its effect, a Seperator is connected downstream. A similar construction to US-A-6 030 322 shows DE 1 482 721.

Die Erfindung hat die Aufgabe, die gattungsgemäße Zentrifuge derart weiterzuentwickehl, dass bei kostengünstiger Konstruktion auf einfache Weise eine Ableitung des Konzentrates aus dem Bereich der Teller zum Trommelmantel hin erfolgt, wobei auch die aus der Befestigung der Tellerpakete auf den Schneckenkörper resultierenden Probleme vermieden werden sollen.The invention has the object, the generic centrifuge weiterzuentwickehl, that with cost-effective design in a simple way a derivative of the concentrate from the area of the plate to the drum shell out takes place, wherein also resulting from the attachment of the plate packages on the screw body Problems should be avoided.

Die Erfindung löst diese Aufgabe durch den Gegenstand des Anspruches 1.The invention solves this problem by the subject matter of claim 1.

Der konische Abschnitt der Scheibe sowie der entgegengesetzt zum konischen Abschnitt der Scheibe ausgebildete konische Trommeldeckel bilden hiermit einen zweifach sich konisch verjüngenden Feststoff- bzw. Konzentratsammelraum, der eine besondere vorteilhafte Ableitung des Konzentrates zum Trommelmantel hin ermöglicht, ohne dass das Ansetzen eines separat ausgebildeten, dem Dekanter nachgeschalteten Separators nach Art des gattungsgemäßen Standes der Technik notwendig wäre. Hierzu ist das Tellerpaket in einem zylindrischen Abschnitt der Trommelraumes mit im wesentlichen konstanten Durchmesser angeordnet und das Tellerpaket ist direkt dem Flüssigkeitsablauf vorgeschaltet, wobei es am Trommeldeckel anliegt und/oder an diesem angeordnet ist.The conical section of the disc as well as the opposite to the conical section The disk formed conical drum lid hereby form a double conically tapering solids or concentrate collection space, the one enables a particularly advantageous discharge of the concentrate towards the drum shell, without the attachment of a separately formed, the decanter downstream Separators on the type of the generic prior art necessary would. For this purpose, the plate package in a cylindrical portion of the drum space arranged with a substantially constant diameter and the plate package is connected directly upstream of the liquid outlet, wherein it rests on the drum lid and / or arranged on this.

Da das Tellerpaket direkt am Trommeldeckel anliegt oder an diesem befestigt ist, rotiert es auch nicht mehr mit einer Differenzdrehzahl zum Trommelmantel sondern dreht sich mit diesem mit. Im Gegensatz zu Tellereinsätzen auf der Schnecke treten bei diesem mit der flüssigkeitsseitigen Trommelwand verbundenen Tellereinsatz keine störenden Kurzschlussverbindungen zwischen der Klarphasensammelleitung des Tellereisatzes und dem Feststoffraum außerhalb des Tellereinsatzes auf. Der Konzentratraum des Tellereinsatzes befindet sich außen am Tellerpaket, in welchem der Durchmesser des Trommelmantels durchgehend ausführbar ist und keiner Erweiterung bedarf. Auf diese Weise lassen sich auch schwer klärbare Gemische trennen, z.B. Gemische mit feinen Schwebstoffen.Since the plate package rests directly on the drum lid or is attached to this, It does not rotate any more with a differential speed to the drum shell but turns with this one. In contrast to plate inserts step on the screw in this connected to the liquid-side drum wall plate insert no interfering short circuits between the clear phase collector of the Tellereisatzes and the solids space outside the plate insert on. Of the Concentrate space of the plate insert is located on the outside of the plate package, in which the diameter of the drum shell is continuously executable and no extension requirement. In this way it is also possible to separate mixtures which are difficult to clarify, e.g. Mixtures with fine suspended matter.

Vorzugsweise ist die maximale radiale Erstreckung der Scheibe geringer ist als die radiale Erstreckung des Schneckenblattes. Insbesondere wird die Ableitung mittels eines Räumers am ersten Schneckenblatt erreicht, welches den Teller durchsetzt.Preferably, the maximum radial extent of the disc is less than that radial extent of the screw blade. In particular, the derivative is by means of reached a scraper on the first screw blade, which passes through the plate.

Der Trommeldeckel wird im wesentlichen konisch ausgebildet, was eine besonders einfache Befestigung der vorzugsweise vormontierten Tellerpaketeinheit am Trommeldeckel ermöglicht, zumal die Teller des Tellapaketes ebenfalls bevorzugt konisch ausgebildet sind.The drum lid is made substantially conical, which a particularly simple attachment of the preferably pre-assembled plate package unit on the drum lid allows, especially the plates of the Tellapaketes also are preferably formed conical.

Besonders hervorzuheben ist noch, daß nach einer weiteren bevorzugten Ausführungsform der Erfindung die Klarphasensammelleitung auf einem niedrigeren Durchmesser als die Außenwandung des Schneckenkörpers liegt. Particularly noteworthy is that, according to another preferred embodiment the invention, the clear phase collector at a lower Diameter than the outer wall of the screw body is located.

Weitere vorteilhafte Ausführungen sind den übrigen Unteransprüchen zu entnehmen.Further advantageous embodiments can be found in the remaining subclaims.

Nachfolgend werden Ausführungsbeispiele anhand der Zeichnung näher beschrieben. Es zeigt:

Fig. 1
einen Schnitt durch eine erfindungsgemäße Vollmantel-Schneckenzentrifuge; und
Fig. 2
einen Schnitt durch einen Teilbereich der erfindungsgemäßen Vollmantel-Schneckenzentrifuge.
Embodiments will be described in more detail with reference to the drawing. It shows:
Fig. 1
a section through a solid bowl screw centrifuge according to the invention; and
Fig. 2
a section through a portion of the solid bowl screw centrifuge according to the invention.

Fig. 1 zeigt eine Vollmantel-Schneckenzentrifuge, welche neben den hier nicht weiter zu erläuternden Bestandteilen wie dem Antrieb A und dem Maschinengestell M eine Schleudertrommel mit einem Trommelmantel 1 und mit einer Schnecke 2 aufweist, wobei die Schnecke 2 einen Schneckenkörper 3 sowie ein den Schnekkenkörper 3 mehrfach umgebendes Schneckenblatt 4 umfaßt. Zwischen den Schneckengängen 4 ist eine Förderbahn zum Fördern/Transport eines zu verarbeitenden Schleudergutes ausgebildet.Fig. 1 shows a solid bowl centrifuge, which in addition to the not here to be explained further components such as the drive A and the machine frame M a centrifugal drum with a drum shell 1 and with a screw. 2 wherein the screw 2 is a screw body 3 and a Schnekkenkörper 3 multiple surrounding screw blade 4 includes. Between Worm threads 4 is a conveyor track for conveying / transporting a processed Slippery trained.

Der Schneckenkörper 3 weist einen im hinteren Bereich leicht gestuften, zylindrischen Abschnitt 5a und einen sich darin anschließenden konisch verjüngenden Abschnitt 5b auf. Der zylindrische Abschnitt 5a wird axial von einem sich zumindest im Bereich des Trommelraumes 6 zwischen dem Schneckenkörper 3 und dem Trommelmantel 1 konisch ausgebildeten Trommeldeckel 7 verschlossen.The screw body 3 has a slightly stepped in the rear, cylindrical Section 5a and an adjoining conical tapered section 5b on. The cylindrical portion 5a becomes axially at least one of itself in the region of the drum space 6 between the screw body 3 and the Drum shell 1 conical drum lid 7 closed.

Die Funktion dieser Vollmantel-Schneckenzentrifuge ist wie folgt.The function of this solid bowl centrifuge is as follows.

Das Schleudergut S wird durch das zentral angeordnete sowie mitrotierende Einlaufrohr 12 über einen Verteiler 20 in den Trommelraum 6 mit der Schnecke 2 und dem die Schnecke 2 umgebenden Trommelmantel 1 geleitet. Durch Einwirkung der Schwerkraft setzen sich die Feststoffteilchen in kürzester Zeit an der inneren Wandung des rotierenden Trommelmantels 1 ab. Der Verteiler 20 und das mitrotierende Einlaufrohr 12 bilden ein vorteilhaft hygienisches, weitgehend dichtes System.The S to be centrifuged is through the centrally arranged and co-rotating inlet pipe 12 via a distributor 20 in the drum chamber 6 with the screw 2 and the screw shell 2 surrounding drum shell 1 passed. By action Gravity, the solid particles settle in the shortest time on the inner Wall of the rotating drum shell 1 from. The distributor 20 and the co-rotating Inlet pipe 12 form an advantageous hygienic, largely dense system.

Die Schnecke 2 rotiert mit einer etwas kleineren oder größeren Geschwindigkeit als die Trommel 1 und fördert den ausgeschleuderten Feststoff zum konischen Abschnitt hin aus der Trommel zum Feststoffaustrag.The worm 2 rotates at a speed slightly lower or higher than the drum 1 and promotes the ejected solid to the conical section out of the drum for solids discharge.

Die Flüssigkeit strömt dagegen zum zylindrischen Abschnitt 5a am hinteren Ende der Trommel 1 und wird dort abgeleitet.On the other hand, the liquid flows to the cylindrical portion 5a at the rear end the drum 1 and is derived there.

Dabei ist in Fig. 1 folgende Konstruktion dem Flüssigkeitsablauf vorgeschaltet.In this case, the following construction precedes the liquid flow in Fig. 1.

Zwischen dem vom Trommeldeckel 7 aus betrachtet ersten Schneckengang x und dem Trommeldeckel 7 ist als Abschluß der Schnecke eine Art Scheibe 8 auf dem Schneckenkörper angeordnet, welcher einen scheibenartigen inneren Abschnitt 8a und einen stabilisierenden, konischen äußeren Abschnitt 8b aufweist, wobei die maximale radiale Erstreckung der Scheibe 8 geringer ist als die radiale Erstreckung des Schneckenblattes 4. Am Innendurchmesser der Scheibe 8 ist wenigstens eine Öffnung für einen Flüssigkeitsdurchtritt ausgebildet, hier ein Ringspalt 21. Vorzugsweise sind die konischen Teller 11 im wesentlichen der Konizität des Trommeldeckels 7 entsprechend ausgebildet.Between the first screw thread x and viewed from the drum cover 7 from the drum lid 7 is as a conclusion of the screw a kind of disc 8 on the Slug body arranged, which has a disc-like inner portion 8a and a stabilizing conical outer portion 8b, wherein the maximum radial extent of the disc 8 is less than the radial Extension of the screw blade 4. At the inner diameter of the disc 8 is at least formed an opening for a liquid passage, here an annular gap 21. Preferably, the conical plates 11 are substantially conical formed corresponding to the drum cover 7.

Zwischen der Scheibe 8 und dem Trommeldeckel 7 ist wiederum ein Tellerpaket 9 angeordnet, welches als vormontierbare Einheit ausgebildet und direkt an der Innenseite des Trommeldeckels 7 befestigt ist. Das Tellerpaket weist eine "verteilerartig geformte" Halterung 10 auf, welche einen inneren zylindrischen Abschnitt 10a und einen sich daran axial anschließenden konischen Abschnitt 10b umfaßt. Zwischen dem konischen Abschnitt 10b und dem Trommeldeckel 7 sind die eigentlichen konischen Teller 11 angeordnet, welche vorzugsweise mittels Abstandshaltern beabstandet sind, die dem jeweiligen Einsatzzweck angepaßt werden (angeformte Leisten, punktförmige Abstandshalter usw.).Between the disc 8 and the drum cover 7 is again a plate package. 9 arranged, which is designed as a preassembled unit and directly on the inside the drum cover 7 is attached. The plate package has a "distributor shaped "holder 10, which has an inner cylindrical portion 10a and an axially adjoining conical section 10b. Between the conical portion 10b and the drum lid 7 are the actual arranged conical plate 11, which preferably by means of spacers are spaced, which are adapted to the particular application (molded Moldings, punctiform spacers, etc.).

Im äußeren Bereich der Teller 1 sind Steigekanäle 13 ausgebildet, welche auch den konischen Abschnitt 10b durchsetzen. Alternativ kann das Tellerpaket 9 derart ausgebildet sein, daß die Zufuhr des zu klärenden Schleudergutes radial von außen erfolgt (hier nicht dargestellt).In the outer region of the plate 1 riser channels 13 are formed, which also the prevail conical section 10b. Alternatively, the disc package 9 may be formed be that the supply of the centrifugal material to be clarified takes place radially from the outside (not shown here).

Die Ableitung der Klarphase erfolgt durch eine Sammelleitung 14 am inneren Durchmesser der Teller 11 in der Wandung des zylindrischen Abschnittes 10b.The derivation of the clear phase is carried out by a manifold 14 at the inner Diameter of the plate 11 in the wall of the cylindrical portion 10b.

Die Sammelleitung 14 liegt vorzugsweise zumindest teilweise auf einem kleineren Durchmesser als die Außenwandung des Schneckenkörpers 3, was eine energiesparendere Betriebsweise bedingt als ein Anordnen der Sammelleitung auf einem größeren Durchmesser, die aber theoretisch auch denkbar ist. Die Sammelleitung 14 findet eine axiale Fortsetzung in einer Bohrung 15 des Trommeldeckels, welche in einem sich radial nach außen erstreckenden Ablauf 16 für die Klarphase mündet.The manifold 14 is preferably at least partially on a smaller Diameter than the outer wall of the screw body 3, which is a more energy-efficient Operating conditionally as arranging the manifold on a larger Diameter, which is also theoretically conceivable. The manifold 14 finds an axial continuation in a bore 15 of the drum cover, which in a radially outwardly extending drain 16 for the clear phase opens.

Der Konzentratraum befindet sich hier außen am Tellerpakt 9, wobei der Durchmesser des Trommelmantels 1 durchgehend ausgeführt ist und keine Erweiterung umfaßt. Die Konzentratabfuhr erfolgt mittels der Schnecke 2, wobei die Schnecke zum Austrag des Feststoffes aus dem Konzentratraum einen Räumansatz 17 aufweist, welcher die Scheibe 8 durchtritt. Der Durchmesser des Trommelmantels 1 ist diesem Bereich im wesentlichen konstant ausgebildet.The concentrate room is located outside on the Tellerpakt 9, the diameter of the drum shell 1 is executed continuously and no extension includes. The concentrate is discharged by means of the screw 2, wherein the screw has a Räumansatz 17 for discharging the solid from the concentrate space, which passes through the disc 8. The diameter of the drum shell 1 is this area formed substantially constant.

Zur Einstellung des Spiegeldurchmessers in der Trommel können bekannte System wie z.B. das Varipondsystem der Anmelderin eingesetzt werden (Regulierscheibe 22, die axial vor Ablauf schiebbar ist DE 43 20 265). Auch andere Einstellmöglichkeiten des Spiegels wie eine dem Tellerpaket nachgeschaltete Schälscheibe sind vorstellbar.To adjust the mirror diameter in the drum known system such as. Applicant's Varipond system can be used (regulating disc 22, which is axially slidable before expiry DE 43 20 265). Also other settings of the mirror as a disc package downstream peeling disc imaginable.

An der Halterung 10 und/oder am Trommeldeckel 7 sind ferner in vorteilhafter Weise an der von den Tellern 9 abgewandten Seite die Einleitung des Schleudergutes in das Tellerpaket unterstützende Rippen 23 ausgebildet.On the bracket 10 and / or on the drum cover 7 are also in an advantageous Way at the side facing away from the plates 9 side of the introduction of the centrifuged material formed in the plate package supporting ribs 23.

Die Funktion dieser Anordnung ist wie folgt.The function of this arrangement is as follows.

Das den Ringspalt 21 durchtretende Schleudergut strömt an den Rippen 23 in die Steigekanäle 13 des Tellerpaketes 9, wo die Klarphase zur Sammelleitung und die Feststoffe nach außen abgeleitet werden. Die Feststoffe werden von dem Räumansatz 17 mitgenommen und von der Schnecke zum konischen Abschnitt 5b gefördert.The centrifugal material 21 passing through the centrifugal material flows at the ribs 23 in the Rising channels 13 of the plate package 9, where the clear phase to the manifold and the Solids are discharged to the outside. The solids are from the Räumansatz 17 taken and promoted by the screw to the conical section 5b.

Durch eine Rückspülvorrichtung kann das System bzw. das Tellerpaket gereinigt werden. Bei Bedarf kann der Reinigungseffekt durch Entleerung über eine Düse im Ablauf 16 und ein Fliehkraftventil 19 unterstützt werden.By a backwash the system or the disc pack can be cleaned become. If necessary, the cleaning effect by emptying through a nozzle in the Run 16 and a centrifugal valve 19 are supported.

Bevorzugt ist der Abstand der Teller 11 des Tellerpaketes 9 größer als 0,5 mm und kleiner als 3 mm; gemessen senkrecht zur Oberfläche der Teller. Der Neigungswinkel der konischen Teller zur Trommellachse liegt vorzugsweise zwischen 35° und 55°, insbesondere bei 40° bis 50°. Preferably, the distance of the plate 11 of the plate package 9 is greater than 0.5 mm and less than 3 mm; measured perpendicular to the surface of the plate. The angle of inclination the conical plate to the drum axis is preferably between 35 ° and 55 °, especially at 40 ° to 50 °.

Besonders bevorzugt beträgt der Durchmesser der Teller 11 am äußeren Rand ca. 50 bis 75%, insbesondere 2/3 des Durchmessers des freien Schneckenbereiches oder des Trommelraumes. Particularly preferably, the diameter of the plate 11 at the outer edge is approx. 50 to 75%, in particular 2/3 of the diameter of the free screw area or the drum room.

Bezugszeichenreference numeral

Trommelmanteldrum shell
11
Schneckeslug
22
Schneckenkörperscrew body
33
Schneckenblattscrew blade
44
zylindrischer Abschnittcylindrical section
5a5a
konischer Abschnittconical section
5b5b
Trommelraumdrum space
66
Trommeldeckeldrum lid
77
Scheibedisc
88th
innerer Abschnittinner section
8a8a
konischer Abschnittconical section
8b8b
TellerpaketDisc stack
99
Halterungbracket
1010
zylindrischer Abschnittcylindrical section
10a10a
konischer Abschnittconical section
10b10b
konischen Tellerconical plate
1111
Einlaufrohrinlet pipe
1212
Steigekanälerising channels
1313
Sammelleitungmanifold
1414
Bohrungdrilling
1515
Ablaufprocedure
1616
RäumansatzRäumansatz
1717
Fliehkraftventilcentrifugal valve
1919
Verteilerdistributor
2020
Ringspaltannular gap
2121
Regulierscheiberegulating ring
2222
Rippenribs
23 23
Antriebdrive
AA
Maschinengestellmachine frame
MM

Claims (20)

  1. Solid-bowl screw centrifuge, having the following:
    a centrifuging drum having a drum bowl (1) and a screw (2) with a screw body (3), which is surrounded by a screw blade (4) which forms a plurality of screw turns, a conveying path for transporting a centrifuging material to be processed being formed between the screw turns,
    an inlet (12) for the centrifuging material to enter the centrifuging drum,
    at least one solids outlet and at least one liquid outlet (16),
    a set of plates (9) comprising plates (11) being arranged in the centrifuging drum,
    the drum space (6) being axially closed off by a drum cover (7) which is substantially conical in form,
    the set of plates (9) being connected directly upstream of the liquid outlet (16) and bearing against or being arranged on the drum cover (7),
    characterized in that
    the set of plates (9) is arranged in a cylindrical portion of the drum space with a substantially constant diameter, and
    a disc (8); which has a disc-like inner portion (8a) and a conical outer portion (8b), opposite to the drum cover, is provided between the first screw turn (x), as seen from the drum cover (7), and the drum cover (7) itself, as a termination of the screw.
  2. Solid-bowl screw centrifuge according to Claim 1, characterized in that the conical plates (11) are designed so as to substantially correspond to the conicity of the drum cover (7).
  3. Solid-bowl screw centrifuge according to Claim 1 or 2, characterized in that the set of plates has a collection line (14) for the clarified liquid phase, which line is preferably located at least partially or completely on a smaller diameter in the centrifuging drum than the outer wall of the screw body (3).
  4. Solid-bowl screw centrifuge according to one of the preceding claims, characterized in that the maximum radial extent of the disc (8) is shorter than the radial extent of the screw blade (4).
  5. Solid-bowl screw centrifuge according to one of the preceding claims, characterized in that at least one opening (21), preferably an annular gap, for liquid to pass through is formed at the inner diameter of the disc (8).
  6. Solid-bowl screw centrifuge according to one of the preceding claims, characterized in that the set of plates (9) is formed between the disc (8) and the drum cover (7).
  7. Solid-bowl screw centrifuge according to one of the preceding claims, characterized in that the set of plates (9) has a holder (10) which comprises an inner cylindrical portion (10a) and a conical portion (10b) which adjoins the inner cylindrical portion in the axial direction, the conical plates (11) being arranged between the conical portion (10b) and the drum cover (7).
  8. Solid-bowl screw centrifuge according to one of the preceding claims, characterized in that the set of plates (9) is designed in such a manner that the centrifuging material that is to be clarified is supplied radially from the outer side.
  9. Solid-bowl screw centrifuge according to one of the preceding claims, characterized in that riser passages (13) are formed in the outer region of the plates (11) and preferably also pass through the conical portion (10b) of the holder (10).
  10. Solid-bowl screw centrifuge according to one of the preceding claims, characterized in that at least the two collection lines are formed in the cylindrical portion of the holder (10).
  11. Solid-bowl screw centrifuge according to one of the preceding claims, characterized in that the collection line (14) opens out into the outlet (16), preferably via a bore (15) in the drum cover (7).
  12. Solid-bowl screw centrifuge according to one of the preceding claims, characterized in that the screw (2) has a clearing attachment (17) for discharging the solids from the concentrate space.
  13. Solid-bowl screw centrifuge according to one of the preceding claims, characterized in that the inlet pipe (12) is designed in such a manner as to rotate with the screw (2).
  14. Solid-bowl screw centrifuge according to one of the preceding claims, characterized in that ribs (23) for introducing the centrifuging material into the set of plates (9) are fitted to the holder (10) on the side remote from the plates (11) or to the drum cover (7).
  15. Solid-bowl screw centrifuge according to one of the preceding claims, characterized in that the distance between the plates (11) of the set of plates (9) is between 0.5 and 3 mm, measured perpendicular to the surface of the plates.
  16. Solid-bowl screw centrifuge according to one of the preceding claims, characterized in that the angle of inclination of the conical plates (11) with respect to the drum axis is between 35° and 55°, in particular is from 40° to 50°.
  17. Solid-bowl screw centrifuge according to one of the preceding claims, characterized in that the maximum radial extent of the plates (11) amounts to between 50 and 75% of the free screw region or of the drum space (6).
  18. Solid-bowl screw centrifuge according to one of the preceding claims, characterized in that the maximum radial extent of the plates (11) is 2/3 of the free screw region or of the drum space (6).
  19. Solid-bowl screw centrifuge according to one of the preceding claims, characterized in that a back-flushing device and/or a centrifugal-force valve (19) and/or a nozzle (19) is provided for cleaning purposes.
  20. Solid-bowl screw centrifuge according to one of the preceding claims, characterized in that a regulating disc (22) can be slid axially in front of the outlet in order to regulate the liquid level.
EP01271978A 2000-12-27 2001-10-23 Solid-bowl screw centrifuge Expired - Lifetime EP1345700B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10065060 2000-12-27
DE10065060A DE10065060B4 (en) 2000-12-27 2000-12-27 Solid bowl screw centrifuge with plate insert
PCT/EP2001/012196 WO2002051550A1 (en) 2000-12-27 2001-10-23 Solid-bowl screw centrifuge

Publications (2)

Publication Number Publication Date
EP1345700A1 EP1345700A1 (en) 2003-09-24
EP1345700B1 true EP1345700B1 (en) 2005-02-16

Family

ID=7669017

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01271978A Expired - Lifetime EP1345700B1 (en) 2000-12-27 2001-10-23 Solid-bowl screw centrifuge

Country Status (11)

Country Link
US (1) US7083565B2 (en)
EP (1) EP1345700B1 (en)
JP (1) JP3990982B2 (en)
AT (1) ATE289221T1 (en)
AU (1) AU2002221724B2 (en)
BR (1) BR0116542B1 (en)
CA (1) CA2437502C (en)
DE (2) DE10065060B4 (en)
DK (1) DK1345700T3 (en)
PL (1) PL197427B1 (en)
WO (1) WO2002051550A1 (en)

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10065060B4 (en) * 2000-12-27 2004-07-08 Westfalia Separator Ag Solid bowl screw centrifuge with plate insert
DE10203652B4 (en) * 2002-01-30 2006-10-19 Westfalia Separator Ag Solid bowl centrifuge with a weir
ATE399594T1 (en) † 2003-07-10 2008-07-15 Westfalia Separator Gmbh SEPARATION PLATE AND CENTRIFUGE WITH SUCH SEPARATION PLATES
DE10336350B4 (en) * 2003-08-08 2007-10-31 Westfalia Separator Ag Solid bowl centrifuge, with paring disc
DE102005027553A1 (en) * 2005-06-14 2006-12-28 Westfalia Separator Ag Three-phase solid bowl screw centrifuge and process for controlling the separation process
DE102006030477A1 (en) 2006-03-30 2007-10-04 Westfalia Separator Ag Full metal helical conveyor centrifuge, has ring assigned to opening as closure device and displaceable using actuating device in position to open opening and in another position to close opening, where actuating device is assigned to ring
SE531141C2 (en) * 2007-05-10 2009-01-07 Alfa Laval Corp Ab Centrifugal separator with conveyor thread that prevents separated particles from clogging the inside of the rotor
DE102010012276A1 (en) 2010-03-22 2011-09-22 Gea Westfalia Separator Gmbh Solid bowl centrifuge
CN103316780A (en) * 2013-05-28 2013-09-25 浙江大金离心机有限公司 Horizontal screw centrifuge
CN105855069B (en) * 2016-04-07 2018-10-09 安徽普源分离机械制造有限公司 A kind of sludge of drinking water multi-stage, efficient separation equipment
CN105903576A (en) * 2016-04-07 2016-08-31 安徽普源分离机械制造有限公司 Environment-friendly energy-saving tap water sludge high-efficient separation system
CN105855068B (en) * 2016-04-07 2018-01-05 安徽普源分离机械制造有限公司 A kind of sludge of drinking water high-efficient treatment device
CN106964497A (en) * 2017-05-26 2017-07-21 安徽普源分离机械制造有限公司 One kind separates thoroughly horizontal spiral automatic discharging sedimentation centrifuge
CN107096648A (en) * 2017-05-26 2017-08-29 安徽普源分离机械制造有限公司 A kind of horizontal spiral automatic discharging sedimentation centrifuge of negative pressure driving charging
KR20210139420A (en) * 2019-03-20 2021-11-22 이미르 테크놀로지즈 이에이치에프. Integrated decanter and centrifuge for three-phase separation
CN113927939B (en) * 2021-11-03 2024-01-30 浙江国丰油脂有限公司 Intelligent edible oil squeezing equipment
WO2023175538A1 (en) * 2022-03-15 2023-09-21 Flsmidth A/S Decanter centrifuge with lamellae for improved fines recovery

Family Cites Families (34)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT496031A (en)
US2057156A (en) * 1934-09-20 1936-10-13 Bird Machine Co Method of and apparatus for separating solids from fluid suspension
US2622794A (en) * 1948-09-16 1952-12-23 Sharples Corp Centrifugal separator
NL85020C (en) * 1950-06-20
GB726596A (en) * 1952-05-14 1955-03-23 Separator Ab Improvements in or relating to centrifuges for separating, sludge containing liquids
US2743864A (en) * 1954-03-05 1956-05-01 Bird Machine Co Centrifuge with inclined conveyor blade and vanes for rapid collection of fine particles from suspensions
GB998669A (en) * 1964-06-18 1965-07-21 Starcosa Gmbh Centrifugal separators
DK108565C (en) * 1964-07-18 1968-01-02 Thrige Titan As Centrifuge.
FR1449064A (en) 1965-07-02 1966-08-12 Sharples France Improvements made to centrifugal devices, more specifically with extraction screws
SU385629A1 (en) 1971-10-29 1973-06-14 , CENTRIFUGA
JPS4959164U (en) * 1972-09-01 1974-05-24
SU539611A1 (en) * 1974-06-25 1976-12-25 Проектный И Научно-Исследовательский Институт "Гипроникель" Separating plate pack to the centrifuge
US4042172A (en) * 1976-04-14 1977-08-16 Andrei Stepanovich Nozdrovsky Bowl centrifuge rotor
DE2617692A1 (en) 1976-04-23 1977-11-03 G P I Nii Gipronikel Bowl centrifuge rotor - has casing enclosing coaxial external and internal screw conveyors
JPS54132874U (en) * 1978-03-08 1979-09-14
JPS54158764A (en) * 1978-06-05 1979-12-14 Nishihara Kankiyou Eisei Kenki Centrifugal separator for disposing sludge
JPS55124557A (en) * 1979-03-20 1980-09-25 Ishikawajima Harima Heavy Ind Co Ltd Centrifugal separator
US4209128A (en) * 1979-04-06 1980-06-24 Yara Engineering Corporation Methods and apparatus for classifying fine particle solids
FR2532198B1 (en) 1982-08-27 1985-06-21 Bertin & Cie ENERGY RECOVERY CENTRIFUGE
SU1438067A2 (en) * 1987-04-21 1995-01-27 А.М. Бессонов Bowl centrifuge
SU1656741A2 (en) * 1989-11-21 1995-01-27 Свердловский научно-исследовательский институт химического машиностроения Bowl centrifuge
JPH03245860A (en) * 1990-02-22 1991-11-01 Kotobuki Tekkosho:Kk Centrifugal sedimentation separator
GB9013371D0 (en) * 1990-06-15 1990-08-08 Broadbent & Sons Ltd Thomas Improvements in separating systems
US5310399A (en) * 1991-08-20 1994-05-10 Kotobuki Techrex Ltd. Sedimentation centrifuge containing screw conveyor with fins
US5314399A (en) * 1991-08-20 1994-05-24 Kotobuki Techrex Ltd. Sedimentation centrifuge with helical fins mounted on the screw conveyor
JP2720373B2 (en) * 1992-12-18 1998-03-04 月島機械株式会社 Centrifugal concentrator
DE4320265C2 (en) * 1993-06-18 1995-08-03 Westfalia Separator Ag Weir for solid jacket centrifugal drums
US5364335A (en) * 1993-12-07 1994-11-15 Dorr-Oliver Incorporated Disc-decanter centrifuge
DE19618249A1 (en) * 1996-05-07 1997-11-13 Deutz Ag Screw centrifuge with centrifugal valve
JPH105626A (en) * 1996-06-26 1998-01-13 Mitsubishi Kakoki Kaisha Ltd Centrifugal separator
SE9701223D0 (en) 1997-04-04 1997-04-04 Alfa Laval Ab Centrifugal separator with central axis
US6030332A (en) * 1998-04-14 2000-02-29 Hensley; Gary L. Centrifuge system with stacked discs attached to the housing
SE9802116D0 (en) * 1998-06-15 1998-06-15 Alfa Laval Ab decanter
DE10065060B4 (en) * 2000-12-27 2004-07-08 Westfalia Separator Ag Solid bowl screw centrifuge with plate insert

Also Published As

Publication number Publication date
US20060142137A1 (en) 2006-06-29
CA2437502A1 (en) 2002-07-04
CA2437502C (en) 2009-06-02
DK1345700T3 (en) 2005-05-30
EP1345700A1 (en) 2003-09-24
PL362216A1 (en) 2004-10-18
PL197427B1 (en) 2008-03-31
DE50105394D1 (en) 2005-03-24
DE10065060A1 (en) 2002-07-11
JP2004516139A (en) 2004-06-03
BR0116542B1 (en) 2009-12-01
US7083565B2 (en) 2006-08-01
JP3990982B2 (en) 2007-10-17
ATE289221T1 (en) 2005-03-15
WO2002051550A1 (en) 2002-07-04
DE10065060B4 (en) 2004-07-08
AU2002221724B2 (en) 2006-05-18
BR0116542A (en) 2003-10-07

Similar Documents

Publication Publication Date Title
EP1345700B1 (en) Solid-bowl screw centrifuge
EP2598251B1 (en) Solid bowl screw centrifuge having an overflow weir
EP3426405B1 (en) Separator
EP1968749B1 (en) Screw-type solid bowl centrifuge
EP2658656B1 (en) Solid bowl screw centrifuge having an overflow weir
EP1901849A1 (en) Three-phase solid bowl screw centrifuge and method of controlling the separating process
DE19952804C2 (en) Solid bowl screw centrifuge for processing a centrifugal material that tends to foam
EP2872256B1 (en) Solid-bowl screw centrifuge with overflow weir
DE102004037925A1 (en) Separator for liquid-solid separation has diameter of passage inside disc pack above lowermost disc in direction of flow not constant and/or passage is inclined to rotational axis of drum
WO2003064054A1 (en) Full-jacket helix centrifuge with a weir
DE10209925B4 (en) Three-phase solid bowl screw centrifuge, solid bowl screw centrifuge and method of operating a three-phase solid bowl screw centrifuge
WO2019081177A1 (en) Decanter centrifuge
DE4115347C2 (en) Solid bowl screw centrifuge for classifying a solid-liquid mixture
EP1585599B1 (en) Solid bowl helical conveyor centrifuge comprising an adjustable outlet for solids
WO2010097327A1 (en) Solid bowl screw centrifuge having coarse material outlet in baffle plate
EP2392405B1 (en) Separator
WO2011117090A1 (en) Solid bowl screw centrifuge
DE102006027893A1 (en) Separator with a double conical drum made of metal
DE1020575B (en) Continuously working solid bowl centrifuge with solids discharge by a screw conveyor
EP2643092B1 (en) Method for processing a product in a centrifugal field
EP1787723B1 (en) Centrifuge cartridge
EP1383607A1 (en) Solid bowl spiral centrifuge and a method for obtaining oil using a solid bowl spiral centrifuge
DE3305489C2 (en) Solid bowl screw centrifuge
DE102019128562A1 (en) Solid bowl screw centrifuge
DE2550656A1 (en) Centrifuge bowl housing coaxial stack of frustro conical discs - having separate discharge paths for the solids and liquids

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 20030423

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: WESTFALIA SEPARATOR AG

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20050216

Ref country code: IE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20050216

Ref country code: TR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20050216

Ref country code: NL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20050216

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

Free format text: NOT ENGLISH

RIN1 Information on inventor provided before grant (corrected)

Inventor name: BRUENING, PAUL

Inventor name: HORSTKOETTER, LUDGER

Inventor name: HERMEIER, JUERGEN

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

Free format text: GERMAN

REF Corresponds to:

Ref document number: 50105394

Country of ref document: DE

Date of ref document: 20050324

Kind code of ref document: P

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

Effective date: 20050412

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20050516

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: ES

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20050527

REG Reference to a national code

Ref country code: DK

Ref legal event code: T3

REG Reference to a national code

Ref country code: SE

Ref legal event code: TRGR

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: PT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20050725

NLV1 Nl: lapsed or annulled due to failure to fulfill the requirements of art. 29p and 29m of the patents act
REG Reference to a national code

Ref country code: IE

Ref legal event code: FD4D

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: AT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20051023

Ref country code: CY

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20051023

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MC

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20051031

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20051031

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20051031

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20051031

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed

Effective date: 20051117

ET Fr: translation filed
REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 15

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

Ref country code: DK

Payment date: 20151022

Year of fee payment: 15

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

Ref country code: DE

Payment date: 20151021

Year of fee payment: 15

Ref country code: IT

Payment date: 20151030

Year of fee payment: 15

Ref country code: GB

Payment date: 20151022

Year of fee payment: 15

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

Ref country code: SE

Payment date: 20151022

Year of fee payment: 15

Ref country code: FR

Payment date: 20151022

Year of fee payment: 15

Ref country code: BE

Payment date: 20151022

Year of fee payment: 15

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20161031

REG Reference to a national code

Ref country code: DE

Ref legal event code: R119

Ref document number: 50105394

Country of ref document: DE

REG Reference to a national code

Ref country code: DK

Ref legal event code: EBP

Effective date: 20161031

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20161023

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

Effective date: 20170630

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20161023

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20161102

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20170503

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20161024

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20161023

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DK

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20161031

REG Reference to a national code

Ref country code: BE

Ref legal event code: MM

Effective date: 20161031