EP2062650B1 - Centrifuge with a separator disc package and separator - Google Patents
Centrifuge with a separator disc package and separator Download PDFInfo
- Publication number
- EP2062650B1 EP2062650B1 EP08169370A EP08169370A EP2062650B1 EP 2062650 B1 EP2062650 B1 EP 2062650B1 EP 08169370 A EP08169370 A EP 08169370A EP 08169370 A EP08169370 A EP 08169370A EP 2062650 B1 EP2062650 B1 EP 2062650B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- separator
- centrifuge according
- dormer
- case
- disc
- 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.)
- Not-in-force
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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
- B04B1/04—Centrifuges with rotary bowls provided with solid jackets for separating predominantly liquid mixtures with or without solid particles with inserted separating walls
- B04B1/08—Centrifuges with rotary bowls provided with solid jackets for separating predominantly liquid mixtures with or without solid particles with inserted separating walls of conical shape
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
- B04B—CENTRIFUGES
- B04B7/00—Elements of centrifuges
- B04B7/08—Rotary bowls
- B04B7/12—Inserts, e.g. armouring plates
- B04B7/14—Inserts, e.g. armouring plates for separating walls of conical shape
-
- 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
Definitions
- the invention relates to a centrifuge according to the preamble of claim 1 and a separation plate.
- Separators with separator disc packs show the DE 36 07 526 A1 or the DE-OS 19 09 996 or the DE 10 2004 037 925 A ,
- Separator plates are commonly made of stainless steel. They are usually made of a relatively thin sheet metal, have a conical shape and are combined at a central passage opening plate holders to plate stacks. By means of point or lug-shaped spacers they are axially spaced from each other, so that forms a separation gap between them. Rising channels, which enforce the plate packages usually axially parallel to the axis of rotation of the centrifuge, are used to supply a product to be processed in the gaps between the separation plates, where the product clarified in the centrifugal field of solids and where the liquid may also be in a light and a heavier liquid phase is separated.
- the separating plates of the separating plate stack are provided, at least over an axial region of the separating plate stack or the entire separating plate stack, with one or more dormers each having an opening passing through the separating plate, the dormers and the openings form one or more flow channel (s) in the disk package, and the dormers are each formed as being formed in the conical separation plates at the top and protruding into the disk gap.
- the dormers each as in the conical separating plate (in vertical orientation) introduced upward and projecting into the plate gap forms forms whose height increases radially from the inside to the outside and each having in their radially outer region of the opening.
- This variant can be easily realized on the separation plates by embossing and cutting, drilling or punching in the region of the openings of the dormers.
- FIG. 10a and 10b each show a schematic representation of a once clarifier ( Fig. 10a ) and once as a separator ( 10B ) formed centrifugal drum 1, in each of which a Trenntellervers 2 is inserted.
- the function of such nozzle separators with an inlet 3 and processes 4, 5 and 4, 5, 6 has long been well known and therefore needs no further explanation.
- FIG. 3 shows a schematic representation of a half of a separation plate package according to the invention 2 from stacked conical separation plates 7, which preferably consist of a steel sheet material and in Fig. 1 and 2 are shown.
- the Trenntellerwovene 2 are placed on a central and possibly contoured opening 15 on a correspondingly shaped plate holder (not shown here).
- the separation plates 7 may each have one or more circumferentially distributed openings, which in interaction with the plate stack or separator plate package form at least one or more riser channels 8a, b,..., One of which Fig. 10b is indicated.
- the separating plates 7 are arranged axially spaced from each other by means of spacers 9, so that between each of them a plate gap 14 is formed, which is particularly well in Fig. 7 can be seen.
- the spacers 9 are here exemplified as radially extending tabs, which the separating plates 7 and thus also the separator plate column 14 in Divide sectors 10a, 10b, ..., which in each case again into a lying in operation - ie when rotating the Separatortrommel - behind the spacers half I and a lying in the direction of rotation before the spacers half II is subdivided.
- one of the riser channels 8a, 8b is preferably arranged in each of the sectors 10, preferably - as in FIG Fig. 1 shown - viewed in the preferred direction of rotation U, arranged in the directly behind the spacers 9 half I.
- the separating plates 7 are further provided with at least one region of the axial length or over the entire axial length or with vertical axis of rotation, the height of the separator plate stack each with one or more dormers 11, each having at least one opening 12 passing through the respective separation plate 7.
- the dormers 11 are each formed as in the conical separating plate 7 in the vertical axis of rotation upwards introduced features whose height increases radially from the inside outwards and each having in their radially outermost region the opening 12, which - as in Fig. 4 and 5 to recognize, preferably the entire radially outer edge region of the dormers 11 forms.
- the dormers 11 are sized and arranged offset in the stacked separation plates 7 to each other that form through the dormers 11 and the openings 12 and by their interaction the flow channels 13 ( Fig. 3 . 4 . 5 ), which pass through the Trenntellerver 2 or at least a portion of the separating plate 7 of the Trenntellervers 2 radially outwardly and open outward from the Trenntellervers 2.
- a plurality of such flow channels 13 are formed in the separation plate package in the direction of the axis of rotation or in the vertical direction in the vertical axis of rotation ( Fig. 3, 5 ).
- a plurality of dormers 11a, 11b, 11c which are distributed over the circumference, are preferably also formed in each separating plate 7, so that a plurality of flow channels are formed circumferentially distributed.
- one of the dormers 11 a, 11 b, ... or one of the dormers and thus also one of the flow channels 13 is formed in each of the sectors 10.
- the dormers are preferably in the sector half II , which lies in front of the spacers 9 in the direction of rotation U respectively.
- the distribution of the dormers 11 is such that over the entire vertical height flow channels 13 are formed in Trenntellervers 2. But it is also conceivable to provide axially individual separating plate 7 without dormers 11.
- a flat design of the dormers is advantageous so that the distance between the plates is not too large.
- the separation plates 7 of the separation plate stack 2 are not formed the same, since the dormers 11 in the region of each flow channel 13 from the inside to the outside aligned openings 12 must form. Due to modern computer-controlled production methods, this offset from separating plate 7 to separating plate 7 introducing the dormers 11 but easily possible.
- a short cut is introduced into the separating plates 7 and then or in front of them, the forms / dormers 11 are formed in the separating plates 7 by an embossing process.
- the choice of the size of the openings 12 provides a simple way to influence the completion speed of the solid from the plate package (see Fig. 6 ).
- FIGS. 7 and 8 illustrate that the dormers can either be rounded or roof-like with an upper edge 16 can be formed.
- the heavy phase H which flows from the inside to the outside at the bottom of the plate, collects in the dormers 11 with the openings 12 and is guided through the flow channels 13 from inside to outside. It is advantageous if the dormers 11 have a radially increasing from the inside outward height.
- the dormers 11 are preferably arranged or formed in the regions of the sectors 10 in which the heaviest phase of the largest flow is to be expected and where its effect is greatest.
- Individual separation plates in the entire plate package can also have no dormers 11 and 12 openings.
- the disk pack can also have no riser or riser channels on other radial position.
- the dormers 11 and openings 12 are arranged on the respective first lower separating plate of a section with dormers 11 and openings radially in height of the riser channels.
- the dormers 11 of the respective first lower separation plate in a section of separation plates with a dormer not more inside than 25% of the radial extent of the separation plate, preferably not further inside than 1/3 of the radial extent of the separation plate arranged to sufficient solids derive.
- the dormers 11 of the respective first lower separating plate are arranged in a section of separating discs with a dormer not more outwardly than on 1 ⁇ 2 preferably 2/3 or more preferably 3 ⁇ 4 of the radial extent of the separating plate, so that a particularly good effect is given.
- the dormers 11 are in each case relative to the respective conical separating plates 7, in which they are formed in front of upward and form upwardly protruding forms.
Landscapes
- Centrifugal Separators (AREA)
Abstract
Description
Die Erfindung betrifft eine Zentrifuge nach dem Oberbegriff des Anspruches 1 sowie einen Trennteller.The invention relates to a centrifuge according to the preamble of
Separatoren mit Trenntellerpaketen zeigen beispielsweise die
Zum technologischen Hintergrund werden ferner die
Separatorenteller werden gängigerweise aus Edelstahl gefertigt. Sie sind in der Regel aus einem relativ dünnen Metallblech gefertigt, weisen eine konische Form auf und werden an einer zentrischen Durchgangsöffnung auf Tellerhaltern zu Tellerstapeln zusammengefaßt. Mittels punkt- oder laschenförmigen Abstandshaltern werden sie axial zueinander beabstandet, damit sich zwischen ihnen ein Trennspalt ausbildet. Steigekanäle, welche die Tellerpakete in der Regel axial parallel zur Drehachse der Zentrifuge durchsetzen, dienen zur Zuleitung eines zu verarbeitenden Produktes in die Spalte zwischen den Trenntellern, wo sich das Produkt im Zentrifugalfeld von Feststoffen geklärt und wo die Flüssigkeit ggf. auch in eine leichte und eine schwerere Flüssigkeitsphase getrennt wird.Separator plates are commonly made of stainless steel. They are usually made of a relatively thin sheet metal, have a conical shape and are combined at a central passage opening plate holders to plate stacks. By means of point or lug-shaped spacers they are axially spaced from each other, so that forms a separation gap between them. Rising channels, which enforce the plate packages usually axially parallel to the axis of rotation of the centrifuge, are used to supply a product to be processed in the gaps between the separation plates, where the product clarified in the centrifugal field of solids and where the liquid may also be in a light and a heavier liquid phase is separated.
Da die voneinander getrennten Phasen in den Trennspalten in verschiedenen bzw. sogar im wesentlichen einander entgegen gesetzte Richtungen strömen, kommt es beim Trenn- und/oder Klärvorgang u.U. zu einem Rückvermischen der bereits voneinander getrennten Phasen.Since the separate phases in the separation columns in different or even substantially opposite directions to flow, it comes in the separation and / or clarification u.U. to a back mixing of the already separated phases.
Es ist die Aufgabe der Erfindung, dieses Problem zu mindern.It is the object of the invention to reduce this problem.
Die Erfindung löst diese Aufgabe durch die Gegenstände der Ansprüche 1 und 20.The invention solves this problem by the subject matter of
Nach dem Kennzeichen des Anspruchs 1 sind die Trennteller des Trenntellerstapels wenigstens über einen axialen Bereich des Trenntellerstapels oder den gesamten Trenntellerstapel hinweg mit einer oder mehreren Gauben versehen, die jeweils eine den Trennteller durchsetzende Öffnung aufweisen, wobei die Gauben und die Öffnungen einen oder mehrere Strömungskanal/-kanäle im Tellerpaket ausbilden und die Gauben sind jeweils als in die konischen Trennteller nach oben hin eingebrachte und in den Tellerspalt ragende Ausprägungen ausgebildet sind.According to the characterizing part of
Derart wird auf einfache Weise ein großer Teil der schweren Phase direkt durch die Strömungskanäle abgeleitet, die insofern ergänzend vorzugsweise radial nach außen aus dem Trenntellerpaket führen, so dass auf besonders effektive Weise für eine Ableitung der schweren Phase radial nach außen gesorgt wird.Thus, in a simple manner, a large part of the heavy phase is discharged directly through the flow channels, which thus additionally preferably lead radially outward from the separator plate package, so that a discharge of the heavy phase is provided in a particularly effective manner radially outward.
Dabei sind die Gauben jeweils als in die konischen Trennteller (bei vertikaler Ausrichtung) nach oben hin eingebrachte und in den Tellerspalt ragende Ausprägungen ausgebildet, deren Höhe radial von innen nach außen hin zunimmt und die jeweils in ihrem radial äußeren Bereich die Öffnung aufweisen. Diese Variante lässt sich fertigungstechnisch einfach an den Trenntellern durch ein Prägen und einen Schnitt, ein Bohren oder Stanzen im Bereich der Öffnungen der Gauben realisieren.In this case, the dormers each as in the conical separating plate (in vertical orientation) introduced upward and projecting into the plate gap forms forms whose height increases radially from the inside to the outside and each having in their radially outer region of the opening. This variant can be easily realized on the separation plates by embossing and cutting, drilling or punching in the region of the openings of the dormers.
Dabei ist es zu Optimierung der Wirkung vorteilhaft, wenn die Gauben jeweils in den Bereichen der Trennteller ausgebildet sind, in denen im Tellerspalt die größte Strömung an schwerer Phase auftritt.It is advantageous for optimizing the effect when the dormers are each formed in the areas of the separation plates, in which the largest flow occurs in the plate gap in heavy phase.
Vorteilhafte Ausgestaltungen der Erfindung sind den Unteransprüchen zu entnehmen.Advantageous embodiments of the invention can be found in the dependent claims.
Nachfolgend wird die Erfindung unter Bezug auf die Zeichnung anhand eines Ausführungsbeispiels näher beschrieben. Es zeigt:
- Fig. 1
- eine perspektivische Ansicht eines erfindungsgemäßen Trenntellers;
- Fig. 2
- eine Draufsicht auf den Trennteller der
Fig. 1 ; - Fig. 3
- eine hälftige Schnittansicht eines Tellerspaltes;
- Fig. 4
- eine vergrößerte Schnittansicht eines Teilbereiches des Tellerstapels aus
Fig. 3 ; - Fig. 5
- eine vergrößerte Schnittansicht eines anderen Teilbereiches des Tel- lerstapels aus
Fig. 3 ; - Fig. 6
- eine Schnittansicht durch einen Trennspalt zwischen zwei Trenntel- lern zur Veranschaulichung der Wirkungsweise im Betrieb;
- Fig. 7, 8
- alternative Formen von Gauben an Trenntellern;
- Fig. 9
- eine Schnittansicht durch einen Abschnitt weiteren Tellerstapel; und
- Fig. 10a, b
- Prinzipskizzen bekannter Separatoren.
- Fig. 1
- a perspective view of a separation plate according to the invention;
- Fig. 2
- a plan view of the separation plate of
Fig. 1 ; - Fig. 3
- a half-sectional view of a plate gap;
- Fig. 4
- an enlarged sectional view of a portion of the plate stack
Fig. 3 ; - Fig. 5
- an enlarged sectional view of another portion of the Telererstapels
Fig. 3 ; - Fig. 6
- a sectional view through a separating gap between two Trennel- learning to illustrate the mode of operation;
- Fig. 7, 8
- alternative forms of dormers on divider plates;
- Fig. 9
- a sectional view through a portion of another stack of plates; and
- Fig. 10a, b
- Schematic diagrams of known separators.
Die Trennteller 7 können jeweils eine oder mehrere umfangsverteilte Öffnungen aufweisen, welche im Zusammenspiel im Tellerstapel bzw. Trenntellerpaket wenigstens einen oder mehrere Steigekanäle 8a, b, ... ausbilden, von denen einer in
Die Trennteller 7 sind mittels Abstandshaltern 9 voneinander axial beabstandet angeordnet, so dass zwischen ihnen jeweils ein Tellerspalt 14 ausgebildet ist, der besonders gut in
Die Abstandshalter 9 sind hier beispielhaft als sich radial erstreckende Laschen ausgebildet, welche die Trennteller 7 und damit auch die Trenntellerspalte 14 in Sektoren 10a, 10b, ... unterteilen, die jeweils wieder in eine im Betrieb - d.h. beim Drehen der Separatortrommel - hinter den Abstandshaltern liegende Hälfte I und eine in Drehrichtung vor den Abstandshaltern liegende Hälfte II unterteilbar ist.The
Dabei ist vorzugsweise in jedem der Sektoren 10 einer der Steigekanäle 8a, 8b angeordnet, und zwar vorzugsweise - wie in
Die Trennteller 7 sind zumindest über einen Bereich der axialen Länge oder über die gesamte axiale Länge bzw. bei vertikaler Drehachse die Höhe des Trenntellerstapels ferner jeweils mit einer oder mehreren Gauben 11 versehen, welche jeweils wenigstens eine den jeweiligen Trennteller 7 durchsetzende Öffnung 12 aufweisen.The separating
Die Gauben 11 sind jeweils als in die konischen Trennteller 7 bei vertikaler Drehachse nach oben hin eingebrachte Ausprägungen ausgebildet, deren Höhe radial von innen nach außen hin zunimmt und die jeweils in ihrem radial äußersten Bereich die Öffnung 12 aufweisen, welche - wie in
Wie ferner besonders gut in
Bei einem sich über eine größere Höhe erstreckendem Trenntellerpaket 2 sind in Richtung der Drehachse bzw. bei vertikaler Richtung in vertikaler Drehachse mehrere derartige Strömungskanäle 13 im Trenntellerpaket ausgebildet (
Vorzugsweise sind zudem auch umfangsverteilt mehrere Gauben 11a, 11b, 11c, in jedem Trennteller 7 ausgebildet, so dass sich umfangsverteilt auch mehrere Strömungskanäle ausbilden. Insbesondere ist in jedem der Sektoren 10 eine der Gauben 11 a, 11 b, ... bzw. eine der Gauben und damit auch einer der Strömungskanäle 13 ausgebildet. Die Gauben liegen vorzugsweise in der Sektorhälfte II, die in Drehrichtung U jeweils vor den Abstandshaltern 9 liegt.In addition, a plurality of
Vorzugsweise ist die Verteilung der Gauben 11 derart, dass über die gesamte vertikale Höhe Strömungskanäle 13 im Trenntellerpaket 2 ausgebildet sind. Es ist aber auch denkbar, axial einzelne Trennteller 7 ohne Gauben 11 vorzusehen.Preferably, the distribution of the
Es ist auch denkbar, dass in jedem Sektor 10 radial von innen nach außen mehr als eine Gaube 11 angeordnet ist (
Die Strömungskanäle 13 bei vertikaler Drehachse horizontal oder nur leicht geneigt vorzugsweise in einem Winkel α von weniger als 30° zur Horizontalen ausgerichtet. Eine flache Ausgestaltung der Gauben ist vorteilhaft, damit der Abstand zwischen den Tellern nicht zu groß wird.The
Es sei darauf hingewiesen, dass die Trennteller 7 des Trenntellerstapels 2 nicht gleich ausgebildet sind, da die Gauben 11 im Bereich jedes Strömungskanals 13 von innen nach außen hin miteinander fluchtende Öffnungen 12 ausbilden müssen. Durch moderne rechnergesteuerte Fertigungsmethoden ist dieses von Trennteller 7 zu Trennteller 7 versetzte Einbringen der Gauben 11 aber problemlos möglich.It should be noted that the
Vorzugsweise wird im Bereich der zu bildenden Öffnung 12 ein kurzer Schnitt in die Trennteller 7 eingebracht und dann oder davor werden die Ausprägungen/Gauben 11 in den Trenntellern 7 durch einen Prägevorgang ausgebildet. Die Wahl der Größe der Öffnungen 12 bietet eine einfache Möglichkeit zur Beeinflussung der Abschlussgeschwindigkeit des Feststoffes aus dem Tellerpaket (siehe
Es ist zudem denkbar, die Öffnung 12 in den Trenntellern nur relativ klein auszubilden (
Die schwere Phase H, welche an der Tellerunterseite von innen nach außen strömt, sammelt sich jeweils in den Gauben 11 mit den Öffnungen 12 und wird durch die Strömungskanäle 13 von innen nach außen geleitet. Dabei ist es vorteilhaft, wenn die Gauben 11 eine radial von innen nach außen zunehmende Höhe aufweisen.The heavy phase H, which flows from the inside to the outside at the bottom of the plate, collects in the
Die Gauben 11 werden vorzugsweise in den Bereichen der Sektoren 10 angeordnet bzw. ausgebildet, in denen mit der größten Strömung an schwerer Phase zu rechnen ist und wo ihre Wirkung am größten ist.The
Einzelne Trennteller im gesamten Tellerpaket können auch keine Gauben 11 und Öffnungen 12 aufweisen.Individual separation plates in the entire plate package can also have no
Das Tellerpaket kann auch keinen Steigekanal oder Steigekanäle auf anderer radialer Lage aufweisen.The disk pack can also have no riser or riser channels on other radial position.
Vorzugsweise sind die Gauben 11 und Öffnungen 12 am jeweils ersten unteren Trennteller eines Abschnittes mit Gauben 11 und Öffnungen radial in Höhe der Steigekanäle angeordnet.Preferably, the
Weiter bevorzugt sind die Gauben 11 des jeweils ersten unteren Trenntellers in einem Abschnitt von Trenntellern mit einer Gaube nicht weiter innen als auf 25% der radialen Erstreckung der Trennteller, vorzugsweise nicht weiter innen als 1/3 der radialen Erstreckung der Trennteller angeordnet, um genügend Feststoffe abzuleiten.More preferably, the
Zudem sind die Gauben 11 des jeweils ersten unteren Trenntellers in einem Abschnitt von Trenntellern mit einer Gaube nicht weiter außen als auf ½ vorzugsweise auf 2/3 oder besonders bevorzugt auf ¾ der radialen Erstreckung des Trenntellers angeordnet, damit eine besonders gute Wirkung gegeben ist.In addition, the
Die Gauben 11 stehen jeweils relativ zu den jeweiligen, konischen Trenntellern 7, in welchen sie ausgebildet sind, nach oben hin vor und bilden nach oben hin vorkragende Ausprägungen.The
In ihrem Zusammenspiel bilden sie den radial nach außen hin und sich vorzugsweise bis zum äußeren radialen Rand des Tellerpakets erstreckenden Strömungskanal aus.In their interaction, they form the radially outward and preferably up to the outer radial edge of the plate package extending flow channel.
- Schleudertrommelcentrifugal drum
- 11
- TrenntellerpaketSeparator disc package
- 22
- ZulaufIntake
- 33
- Abläufeprocedures
- 4, 5, 64, 5, 6
- Trenntellerseparator disc
- 77
- Steigekanälerising channels
- 8 a, b, ...8 a, b, ...
- Abstandshalterspacer
- 99
- Sektorensectors
- 10a, 10b, ...10a, 10b, ...
- Hälftehalf
- I, III, II
- Gaubenbelieve
- 1111
- Öffnungopening
- 1212
- Kanälechannels
- 1313
- Tellerspaltplate gap
- 1414
- Öffnungopening
- 1515
- Kanteedge
- 1616
Claims (20)
- Centrifuge, in particular separator or solid-jacket screw-type centrifuge, with a centrifugal drum having an axis of rotation D, in particular a vertical axis of rotation, the centrifugal drum (1) having arranged in it at least one separator disc stack (2) composed of stacked separator discs (7) which are spaced axially apart from one another by means of spacers (9), so as in each case to form a disc gap (14) between them, characterized in that the separator discs of the separator disc stack (2) are provided, at least over an axial region of the separator disc stack (2) or over the entire separator disc stack (2), with one or more dormer windows (11) which are in each case provided with at least one orifice (12) passing through the separator disc (7), the dormer windows (11) and the orifices (12) forming at least one flow duct (13) or a plurality of flow ducts (13) in the disc stack, and the dormer windows (11) being designed in each case as the stamped-out portions introduced upwardly into the conical separator discs (7) and projecting into the disc gap (14).
- Centrifuge according to the preceding claim, characterized in that the flow ducts (13) lead out of the separator disc stack radially outwards.
- Centrifuge according to one of the preceding claims, characterized in that the dormer windows (11) have in each case a height increasing radially from the inside outwards.
- Centrifuge according to one of the preceding claims, characterized in that, in the case of a vertical axis of rotation, the flow ducts (13) are oriented horizontally or so as to be inclined at an angle α of less than 30° with respect to the horizontal.
- Centrifuge according to one of the preceding claims, characterized in that the dormer windows (11) are designed in each case as stamped-out portions which are introduced into the conical separator disc (7) upwards and project into the disc gap (14) and the height of which increases radially from the inside outwards and which in each case have the orifice (12) in their radially outer region.
- Centrifuge according to one of the preceding claims, characterized in that the orifices (12) form the entire outer marginal region of the dormer window.
- Centrifuge according to one of the preceding claims, characterized in that the orifices (12) form only part of the outer marginal region of the dormer window.
- Centrifuge according to one of the preceding claims, characterized in that the dormer windows (11) are dimensioned and, in the separator discs (7) lying one above the other, offset with respect to one another, in such a way as to form the flow ducts (13) which pass through the separator disc stack (2) or at least some of the separator discs (7) of the separator disc stack (2) radially outwards and issue from the separator disc stack (2) outwards.
- Centrifuge according to one of the preceding claims, characterized in that a plurality of flow ducts (13) are formed in the separator disc stack (2) one above the other in the direction of the axis of rotation.
- Centrifuge according to one of the preceding claims, characterized in that a plurality of dormer windows (11a, 11b, 11c) are formed, distributed circumferentially, in each separator disc (7), so that a plurality of flow ducts (13) are also formed, distributed circumferentially.
- Centrifuge according to one of the preceding claims, characterized in that the separator disc gaps are subdivided into sectors (10), one of the dormer windows (11) being formed in each of the sectors.
- Centrifuge according to one of the preceding claims, characterized in that, furthermore, a riser duct (8) is in each case formed in each of the sectors.
- Centrifuge according to one of the preceding claims, characterized in that the dormer windows (11) have a rounded form.
- Centrifuge according to one of the preceding claims, characterized in that the dormer windows (11) have a roof-like form with an edge (16).
- Centrifuge according to one of the preceding claims, characterized in that the dormer windows (11) are formed in each case in those regions of the separator discs in which the greatest flow of heavy phase occurs in the disc gap (14).
- Centrifuge according to one of the preceding claims, characterized in that the dormer windows (11) are arranged in the sector half which lies in front of the spacers (9) in the preferred direction of rotation of the drum.
- Centrifuge according to one of the preceding claims, characterized in that the dormer windows (11) and orifices (12) are arranged on the in each case first lower separator disc of a portion with dormer windows (11) and orifices (12), radially level with the riser ducts.
- Centrifuge according to one of the preceding claims, characterized in that the dormer windows (11) of the in each case first lower separator disc in a portion of separator discs with a dormer window are arranged no further inwards than at 25% of the radial extent of the separator discs, preferably no further inwards than at 1/3 of the radial extent of the separator discs.
- Centrifuge according to one of the preceding claims, characterized in that the dormer windows (11) of the in each case first lower separator disc in a portion of separator discs with a dormer window are arranged no further outwards than at ½, preferably at 2/3 or especially preferably at % of the radial extent of the separator disc.
- Separator disc for a centrifuge, in particular for a separator, characterized by a dormer window (11) having an orifice passing through the separator disc (7).
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102007056575A DE102007056575A1 (en) | 2007-11-23 | 2007-11-23 | Centrifuge with a separator plate package and separating plate |
Publications (3)
Publication Number | Publication Date |
---|---|
EP2062650A2 EP2062650A2 (en) | 2009-05-27 |
EP2062650A3 EP2062650A3 (en) | 2010-01-06 |
EP2062650B1 true EP2062650B1 (en) | 2011-02-09 |
Family
ID=40336422
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP08169370A Not-in-force EP2062650B1 (en) | 2007-11-23 | 2008-11-18 | Centrifuge with a separator disc package and separator |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP2062650B1 (en) |
AT (1) | ATE497839T1 (en) |
DE (2) | DE102007056575A1 (en) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102179317B (en) * | 2011-02-28 | 2015-04-01 | 杜高升 | Centrifugal oil purifying machine |
DE102011050046A1 (en) * | 2011-05-02 | 2012-11-08 | Gea Mechanical Equipment Gmbh | centrifuge |
CN105233973B (en) * | 2015-11-02 | 2017-11-24 | 迈安德集团有限公司 | The graded desliming system and desliming process of a kind of MICA |
CN105214854B (en) * | 2015-11-02 | 2017-08-08 | 迈安德集团有限公司 | A kind of micro-size fraction dry-discharge system for tailings and tailing dry-type emission technology |
CN105233971B (en) * | 2015-11-02 | 2017-10-24 | 迈安德集团有限公司 | A kind of swash plate overflow pulp hierarchy system and ore pulp grading technology |
CN105214833B (en) * | 2015-11-02 | 2017-08-08 | 迈安德集团有限公司 | A kind of cyclone overflow pulp hierarchy system and ore pulp grading technology |
CN105234007B (en) * | 2015-11-02 | 2017-10-17 | 迈安德集团有限公司 | A kind of high speed disc dewaterer |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1731999A (en) * | 1929-10-15 | Cream separator | ||
US802150A (en) * | 1905-05-25 | 1905-10-17 | Charles Nordstrom | Centrifugal separator. |
DE664383C (en) * | 1935-01-19 | 1938-08-26 | Melotte Ecremeuses | Conical plate for centrifugal drums |
NL92809C (en) * | 1947-06-13 | |||
SE321896B (en) | 1968-02-29 | 1970-03-16 | Alfa Laval Ab | |
DE3607526A1 (en) | 1985-03-14 | 1987-09-10 | Westfalia Separator Ag | Centrifuge with a self-emptying centrifuge drum |
SE504094C2 (en) * | 1995-03-06 | 1996-11-11 | Tetra Laval Holdings & Finance | Disc stack of centrifugal separator discs |
DK1651352T3 (en) * | 2003-08-08 | 2008-09-22 | Westfalia Separator Gmbh | Separator comprising a centrifugal drum with plate package |
-
2007
- 2007-11-23 DE DE102007056575A patent/DE102007056575A1/en not_active Ceased
-
2008
- 2008-11-18 AT AT08169370T patent/ATE497839T1/en active
- 2008-11-18 DE DE502008002550T patent/DE502008002550D1/en active Active
- 2008-11-18 EP EP08169370A patent/EP2062650B1/en not_active Not-in-force
Also Published As
Publication number | Publication date |
---|---|
DE102007056575A1 (en) | 2009-05-28 |
ATE497839T1 (en) | 2011-02-15 |
DE502008002550D1 (en) | 2011-03-24 |
EP2062650A2 (en) | 2009-05-27 |
EP2062650A3 (en) | 2010-01-06 |
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