EP1651352B1 - Separateur pourvu d'un panier centrifuge a pile de disques - Google Patents

Separateur pourvu d'un panier centrifuge a pile de disques Download PDF

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Publication number
EP1651352B1
EP1651352B1 EP04763784A EP04763784A EP1651352B1 EP 1651352 B1 EP1651352 B1 EP 1651352B1 EP 04763784 A EP04763784 A EP 04763784A EP 04763784 A EP04763784 A EP 04763784A EP 1651352 B1 EP1651352 B1 EP 1651352B1
Authority
EP
European Patent Office
Prior art keywords
channel
separator according
drum
bores
distributor
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
Application number
EP04763784A
Other languages
German (de)
English (en)
Other versions
EP1651352A1 (fr
Inventor
Holger Heinrich
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 EP1651352A1 publication Critical patent/EP1651352A1/fr
Application granted granted Critical
Publication of EP1651352B1 publication Critical patent/EP1651352B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • B04B11/00—Feeding, charging, or discharging bowls
    • B04B11/06—Arrangement of distributors or collectors in centrifuges
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
    • B04B—CENTRIFUGES
    • 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

Definitions

  • the invention relates to a separator according to the preamble of claim 1.
  • the discharge of the liquids takes place i.allg. in areas radially inward or radially outward to the plates of the plate package. It is also known, with the help of bores in particular close to the inner circumference and close to the outer periphery of the plate package in the plate package discharge channels for the liquid phase (s) form (see for example the DE 284640 ).
  • the invention has the object to optimize the flow conditions in the drum of a generic separator with simple design means.
  • the diameter of the at least one channel within the plate stack above the downstream plate is not constant and / or that the channel is inclined to the drum axis of the drum and the holes of the at least one distribution channel are not radially aligned with the drum axis in the drum ,
  • a non-generic centrifuge with a non-concentrically arranged inlet tube shows the DE 38 80 19 .
  • the geometry of the holes of the plate of a rising channel in the channel varies such that the gaps between the plates during operation over the entire height of the plate package are evenly fed with liquid.
  • the diameter of the channel at the distance of several plates gradually or continuously change from plate to plate, in particular decrease in the flow direction. It is particularly expedient if the diameter decreases in the flow direction, e.g. continuously.
  • the holes themselves may have any shape. The most optimal form is determined by the expert by experiments depending on the product. Thus, the holes may have a polygonal or a round shape or an arc shape, in any orientation.
  • each channel consists of several holes, which in turn can particularly advantageously form a pattern of holes in the plates, for example circumferentially distributed on a circle or an ellipse.
  • the at least one inclined channel to the drum axis extends arcuately in the plate package.
  • the channel (s) can very particularly preferably comprise a rising channel for product feed into the plate package and / or also particularly advantageously at least one discharge channel for discharging a liquid phase from the plate package.
  • the optimized design of riser and drainage channels also contributes to the improvement of the flow conditions.
  • one of the discharge channels is designed for discharging different liquid phases close to the inner periphery or close to the outer periphery of the plate package within the plate package.
  • the flow direction runs in the direction of liquid discharges of the drum, with vertical alignment i.allg. from bottom to top).
  • the invention is supplemented by the already mentioned and also independently to be considered measure, a distributor with at least one as a bore provided in a distributor foot distribution channel, which is not aligned radially in the drum, which in turn optimizes the flow conditions depending on the product in a simple manner.
  • the distribution channels are preferably opposite to or u.U. are also inclined in the direction of rotation of the drum.
  • the distribution channels which form bores relative to radials through the drum axis of the drum in a radially inner bore section counter to the direction of rotation of the drum, are advantageously aligned in a trailing inclined manner.
  • the flow conditions are further optimized by this measure, in particular in combination with the measure that the distribution channels open in a further bore section in the drum, which is directed upwards in the drum and exits directly under a riser channel of the plate package in the drum , It also ensures a gentler acceleration and optimal entry of the centrifugal material in the riser channels.
  • the distribution channels may have a widening round or slot-like outlet which extends tangentially in or against the direction of rotation of the drum and / or is directed upwards in the drum.
  • Fig. 1 shows a plan view of a portion of a known plate 1 of a plate package for a separator (not otherwise shown here).
  • the plates 1 show Fig. 1 in each case a bore 2, wherein the holes 2 or holes of the plate 1 in the interaction of a plurality of superimposed plates forming a riser channel 3, which lies radially in the region of the separation zone T between a lighter and a heavier liquid phase.
  • a riser channel 3 which lies radially in the region of the separation zone T between a lighter and a heavier liquid phase.
  • Radially inside to the plates takes place in area 4, the derivative of a light and radially outside of the plate 1 in area 5, the derivative of a heavier liquid phase.
  • the solid emerges outwardly from the disk pack (not shown here) and can be discharged there from the centrifuging drum in a manner known per se, for example through nozzles or a piston slide arrangement.
  • the plate package or the individual plates 1 are pushed onto a distributor shaft 16, which is provided on its outer circumference with a plurality of radially outwardly directed from the shaft webs 17, which protrude beyond the inner circumference I of the plate 1 and so the plate 1 on the distributor shaft sixteenth secure against this non-rotatably.
  • the region 4 for the derivation of the light phase is formed by grooves 20 in the outer periphery of the distributor shaft 16 between the webs 17, which are introduced symmetrically to the bisector W in the distributor shaft 16.
  • the riser channel 3 has a non-constant cross-section, ie, the diameter of the bores 2 of the plate 1 of the plate pack, which form the riser channel, is not constant. It changes rather over the entire height of the plate package (here it is continuously reduced over the entire height of the plate pact in the flow direction).
  • the diameter of the holes 2 decreases Fig. 2 in a drum with a vertical axis of rotation from bottom to top continuously (dashed lines indicated), so that the diameter of the riser channel 3 is also reduced from bottom to top.
  • the riser 3 after Fig. 2 is also not parallel to the drum axis A (perpendicular to the image plane).
  • the holes 2 superposed plate 1 are so far not completely aligned but only in sections, so that the riser channel 3, for example, from bottom to top radially from the outside further inward and / or in or against the direction of rotation in the circumferential direction and thus have a twist can.
  • the groove 20 in the distributor shaft to form the discharge channel is not symmetrical to the bisector W of each plate segment 19 aligned but asymmetrically laterally offset. This too can optimize the flow conditions in the plate package.
  • Fig. 3 - 6 are the discharge channels 6, 7 formed directly in the plate package, ie it is radially outwardly of the inner periphery I of the plate 1 in the plate package a first discharge channel 6 for a slight liquid phase and radially within the outer periphery A of the plate 1, a second discharge channel 7 for a heavier liquid phase educated.
  • These can not only be aligned symmetrically but also not symmetrically to the bisector W of each plate segment 19. This also applies to the riser channels 2 for product supply.
  • the discharge channels 6, 7 are formed analogously to the riser channels 3 by superimposed holes 8, 9 in the plates 1, which are close to the inner or outer periphery of the plate 1.
  • the discharge channels 6, 7 can in turn have a non-constant diameter and / or are not directly above one another but offset relative to the drum axis.
  • all of the above or below arrangements of the bores 2 for the riser channels 3 can also be used analogously in the embodiment of the bores 8, 9 for the drainage channels 6, 7.
  • the bores 8 of the inner discharge channel 6 for the light liquid phase and or the bores 9 of the discharge channel 7 for the heavier phase and / or the bores 2 of the riser channel 3 can in each case in turn consist of a plurality of bores 2, 8, 9 in the manner of a multiple perforation 10, wherein the individual bores can be arranged, for example, on a circle 12, a straight line oriented in particular radially or on a circumferentially oriented arc or a straight line 13.
  • the arcs or straight lines can be aligned at any angle and / or offset to the bisector W of the segment or to other radials through the drum axis A of the centrifuge, depending on the application.
  • the individual bores 2, 8, 9 can have any desired geometry, such as a circular shape or a polygonal shape, for example a triangular or quadrilateral shape (FIG. Fig. 4 ) or an arch form ( Fig. 5 ), wherein the polygon or the other geometric shapes can be aligned at any angle to the bisector W.
  • a circular shape or a polygonal shape for example a triangular or quadrilateral shape (FIG. Fig. 4 ) or an arch form ( Fig. 5 ), wherein the polygon or the other geometric shapes can be aligned at any angle to the bisector W.
  • Fig. 6 to 8 illustrate that it is also possible and / or optional by an optimized distribution design to further optimize the flow conditions in the drum and on and in the plate package.
  • the preferably one-piece manifold is provided with here not radially aligned formed as a bore distribution channels 14, the first ( Fig. 9 ) extend downwardly in a first bore portion in the drum from inside to outside and terminate in a bore portion formed as a preferably expanding or geometrically changing manifold outlet 15a.
  • This is directed in the drum 1 upwards and preferably opens directly under one of the riser channels. It can be circular in the exit area or slot-shaped, for example.
  • the slot-like distributor outlets 15b from the bores of the distribution channels 14 (FIG. Fig. 6 ) can then turn relative to the rest of the distribution channel preferably tangential to radials in ( Fig. 7 ) or against ( Fig. 8 ) extend the direction of rotation of the drum or forward or lag.
  • Fig. 9 shows a cross-sectional view of a schematically illustrated self-draining separator with a drum 21 with a vertical axis of rotation D, which has a manifold 22, in which opens from above an unillustrated inlet pipe.
  • the distributor 22 has the upper distributor shaft 16 concentric with the axis of rotation and a plurality of distribution channels 14 designed as bores, each opening in one of the distributor outlets 15a, b, c.
  • a piston valve 23 is used to open and close Feststoffaustragsötechnisch 24.
  • the liquid discharge from the drum 24 is preferably carried out by grippers or peeling discs, also not shown here.
  • Fig. 10 shows a corresponding plan view of the manifold with the distributor shaft 16 and the lower radially widening, almost plate-like foot portion 25, which is interspersed by the exemplary three dashed lines distribution channels 14, which open in the Verteilerauslässen 15a, b, c.
  • the straight bores forming the distributor channels 14 in the particularly preferred one-part distributor are arranged here not radially but relative to radial r through the drum axis M (which coincides here with the axis of rotation D in the illustration) trailing to the direction of rotation, resulting in a particularly gentle inlet of the material to be centrifuged allows.
  • the angle ⁇ between the distribution channels and the radial R which runs through the approach region of the distribution channel (14) on the inner circumference of the distributor, between 15 and 85 °, in particular between 25 ° and 65 °, to such a particularly gentle inlet of the centrifuged material to reach the drum.
  • the manifold outlets 15a, b, c may have different geometries that are also tuned to the riser channels and in turn may be retarded (15b), leading (15c) or "neutral” (15a) relative to the trailing manifold arm (see also FIG. 10 ).

Landscapes

  • Centrifugal Separators (AREA)
  • Packages (AREA)

Claims (24)

  1. Séparateur comportant un axe de rotation (D) vertical et un panier (21) avec des orifices d'évacuation de matières solides dans un espace de centrifugation en forme de cône simple ou de double cône, dans lequel est agencé une pile formée par une pluralité de disques (1) coniques de préférence, qui sont superposés et qui comportent des forures (2, 8, 9) qui, par leur coopération, forment au moins un canal (3, 6, 7) dans la pile de disques, et comportant un répartiteur (22) avec une tige de répartition (16), entourant concentriquement un axe (11) du panier, et une partie de base (25) inférieure s'élargissant dans le sens radial, dans laquelle sont répartis un ou plusieurs canaux de répartition (14) en forme de forures, caractérisé en ce que le diamètre dudit au moins un canal (3, 6, 7) à l'intérieur de la pile de disques n'est pas constant au-dessus du disque le plus bas dans le sens d'écoulement et/ou en ce que ledit au moins un canal (3, 6, 7) est incliné par rapport à l'axe de rotation du panier et en ce que les forures dudit au moins un canal de répartition (14) ne sont pas orientées dans le sens radial par rapport à l'axe (11) du panier dans le panier (21).
  2. Séparateur selon la revendication 1, caractérisé en ce que les forures formant les canaux de répartition (14) sont disposées dans une partie de forure radialement intérieure en étant inclinées, par rapport aux radiales (R) passant par l'axe (D) du panier (21), vers l'arrière dans le sens opposé au sens de rotation du panier (21).
  3. Séparateur selon l'une quelconque des revendications précédentes, caractérisé en ce que les canaux de répartition (14) débouchent dans le panier (21) dans une autre partie de forure, qui est dirigée vers le haut dans le panier et sort dans le panier (21) directement en dessous d'un canal de remontée de la pile de disques.
  4. Séparateur selon l'une quelconque des revendications précédentes, caractérisé en ce que l'angle (β) entre le canal de répartition (14) et les radiales (R) associées, au niveau de la zone d'origine du canal de répartition (10) sur le pourtour intérieur de celui-ci, se situe entre 15° et 85°, en particulier entre 25° et 65°.
  5. Séparateur selon l'une quelconque des revendications précédentes, caractérisé en ce que les canaux de répartition comportent une sortie (15) s'élargissant ou en forme de fente, qui est disposée tangentiellement dans le sens de rotation ou dans le sens opposé au sens de rotation du panier (21) et/ou est dirigé vers le haut dans le panier (21).
  6. Séparateur selon l'une quelconque des revendications précédentes, caractérisé en ce que la géométrie des forures des disques (11) d'un canal de remontée varie dans le canal de telle sorte que les interstices entre les disques sont occupés en cours de service par un liquide de manière homogène sur toute la hauteur de la pile de disques.
  7. Séparateur selon l'une quelconque des revendications précédentes, caractérisé par une coulisse à piston destinée à ouvrir et fermer les orifices d'évacuation des matières solides.
  8. Séparateur selon l'une quelconque des revendications précédentes, caractérisé en ce que le diamètre du canal (3, 6, 7) varie progressivement à distance de plusieurs disques (1).
  9. Séparateur selon l'une quelconque des revendications précédentes, caractérisé en ce que le diamètre du canal (3, 6, 7) varie en continu d'un disque (1) à l'autre.
  10. Séparateur selon l'une quelconque des revendications précédentes, caractérisé en ce que le diamètre du canal (3, 6, 7) diminue dans le sens d'écoulement.
  11. Séparateur selon l'une quelconque des revendications précédentes, caractérisé en ce que la géométrie des forures (2, 8, 9) du canal (3, 6, 7) varie d'un disque à l'autre.
  12. Séparateur selon l'une quelconque des revendications précédentes, caractérisé en ce que les forures (2, 8, 9) ont une forme polygonale.
  13. Séparateur selon l'une quelconque des revendications précédentes, caractérisé en ce que les forures (2, 8, 9) ont une forme ronde.
  14. Séparateur selon l'une quelconque des revendications précédentes, caractérisé en ce que les forures (2, 8, 9) ont une forme courbe.
  15. Séparateur selon l'une quelconque des revendications précédentes, caractérisé en ce que chaque canal (3, 6, 7) est formé par plusieurs forures (2, 8, 9).
  16. Séparateur selon l'une quelconque des revendications précédentes, caractérisé en ce que les forures (2, 8, 9) de chaque canal (3, 6, 7) forment un modèle de perforation dans les disques (1).
  17. Séparateur selon l'une quelconque des revendications précédentes, caractérisé en ce que ledit au moins un canal (3, 6, 7) est incliné par rapport à l'axe (A) du panier.
  18. Séparateur selon l'une quelconque des revendications précédentes, caractérisé en ce que ledit au moins un canal (3, 6, 7) est disposé en forme de courbe dans la pile de disques.
  19. Séparateur selon l'une quelconque des revendications précédentes, caractérisé en ce que ledit au moins un canal (rainure 20, 2, 8, 9) est orienté asymétriquement par rapport à la bissectrice (W) de son segment de disque (19) associé.
  20. Séparateur selon l'une quelconque des revendications précédentes, caractérisé en ce que ledit au moins un canal (rainure 20, 2, 8, 9) est décalé latéralement par rapport à la bissectrice (W) de son segment de disque (19) associé, lequel est délimité par des nervures (17) et/ou des pattes (18).
  21. Séparateur selon l'une quelconque des revendications précédentes ou selon le préambule de la revendication 1, caractérisé en ce que les disques sont posés sur des nervures radiales de la tige de répartition (16), le canal de dérivation (8) dans la pile de disques ou une rainure (20) dans la tige de répartition (16) étant orientés pour la dérivation asymétriquement par rapport à la bissectrice (W) de chaque segment de disque (19).
  22. Séparateur selon l'une quelconque des revendications précédentes, caractérisé en ce que ledit au moins un canal est un canal de remontée (3) destiné à acheminer le produit dans la pile de disques.
  23. Séparateur selon l'une quelconque des revendications précédentes, caractérisé en ce que ledit au moins un canal est un canal de dérivation (6, 7) destiné à évacuer une phase liquide hors de la pile de disques.
  24. Séparateur selon l'une quelconque des revendications précédentes, caractérisé en ce que chacun des canaux de dérivation (6, 7) est réalisé pour dériver différentes phases liquides vers la zone proche du pourtour intérieur (I) ou vers la zone proche du pourtour extérieur de la pile de disques à l'intérieur de la pile de disques.
EP04763784A 2003-08-08 2004-08-04 Separateur pourvu d'un panier centrifuge a pile de disques Not-in-force EP1651352B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10336349 2003-08-08
PCT/EP2004/008734 WO2005016543A1 (fr) 2003-08-08 2004-08-04 Separateur pourvu d'un panier centrifuge a pile de disques

Publications (2)

Publication Number Publication Date
EP1651352A1 EP1651352A1 (fr) 2006-05-03
EP1651352B1 true EP1651352B1 (fr) 2008-04-23

Family

ID=34089119

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04763784A Not-in-force EP1651352B1 (fr) 2003-08-08 2004-08-04 Separateur pourvu d'un panier centrifuge a pile de disques

Country Status (8)

Country Link
US (1) US7410457B2 (fr)
EP (1) EP1651352B1 (fr)
CN (1) CN100427210C (fr)
AT (1) ATE392953T1 (fr)
DE (2) DE102004037925A1 (fr)
DK (1) DK1651352T3 (fr)
ES (1) ES2305819T3 (fr)
WO (1) WO2005016543A1 (fr)

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DK1651352T3 (da) * 2003-08-08 2008-09-22 Westfalia Separator Gmbh Separator omfattende en centrifugaltromle med tallerkenpakke
DE202005015693U1 (de) * 2005-10-06 2007-02-15 Westfalia Separator Ag Separatortrommel mit optimiertem Verteiler
SE530690C2 (sv) * 2006-04-04 2008-08-12 Alfa Laval Corp Ab Rotorenhet för en centrifugalseparator
SE531141C2 (sv) * 2007-05-10 2009-01-07 Alfa Laval Corp Ab Centrifugalseparator med transportörgänga som förhindrar avskiljda partiklar att täppa till rotorns insida
DE102008051867A1 (de) * 2007-10-17 2009-04-23 Gea Westfalia Separator Gmbh Zentrifuge und Trennteller
DE102007056575A1 (de) 2007-11-23 2009-05-28 Gea Westfalia Separator Gmbh Zentrifuge mit einem Trenntellerpaket und Trennteller
NL2002268C2 (nl) * 2008-02-29 2010-09-16 Daf Trucks Nv Schotel voor een schotelscheider voor een ontluchtingsinrichting van een carterruimte.
DE202008007499U1 (de) 2008-06-04 2008-07-31 Westfalia Separator Gmbh Zentrifugentrommel mit einem Verteiler
DE102008052630A1 (de) 2008-10-22 2010-04-29 Gea Westfalia Separator Gmbh Zentrifuge
EP2556895B1 (fr) 2011-08-10 2018-06-27 Alfa Laval Corporate AB Disque de séparation pour séparateur centrifuge et son procédé de fabrication
EP2664385B1 (fr) * 2012-05-14 2017-03-01 Alfa Laval Corporate AB Pile de disques pour un séparateur centrifuge
EP2664383A1 (fr) * 2012-05-15 2013-11-20 Miltenyi Biotec GmbH Chambre de centrifugation avec écrans déflecteurs
EP2730339B1 (fr) * 2012-11-08 2018-07-25 Alfa Laval Corporate AB Séparateur centrifuge
EP2883947B1 (fr) * 2013-12-10 2019-08-07 Alfa Laval Corporate AB Purification continue d'huiles moteur utilisant un séparateur à trois phases
EP3050629A1 (fr) * 2015-01-30 2016-08-03 Andritz S.A.S. Centrifugeuse à bol plein
EP3085450B1 (fr) * 2015-04-24 2020-02-26 Alfa Laval Corporate AB Séparateur centrifuge à pile de disques
CN105413894A (zh) * 2015-12-15 2016-03-23 宜兴市华鼎粮食机械有限公司 一种带新型分配器的碟式离心机转鼓
CN105413892A (zh) * 2015-12-15 2016-03-23 宜兴市华鼎粮食机械有限公司 一种带耐磨衬的碟式离心机转鼓
EP3315205A1 (fr) 2016-10-31 2018-05-02 Alfa Laval Corporate AB Séparateur centrifuge
EP3315204B1 (fr) 2016-10-31 2019-05-08 Alfa Laval Corporate AB Empilement de disques de séparation
ES2744716T3 (es) 2016-10-31 2020-02-26 Alfa Laval Corp Ab Un disco de separación para un separador centrífugo
CN107457088A (zh) * 2017-09-22 2017-12-12 常州大学 一种碟式离心机螺旋型中性孔碟片组
CN108246522A (zh) * 2018-01-13 2018-07-06 常州大学 一种碟式离心机渐扩型中性孔碟片组
CN109954595B (zh) * 2019-04-18 2021-12-21 沈阳工业大学 一种可变换多流道的碟式分离机碟片组

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Also Published As

Publication number Publication date
DK1651352T3 (da) 2008-09-22
US7410457B2 (en) 2008-08-12
US20080015099A1 (en) 2008-01-17
EP1651352A1 (fr) 2006-05-03
WO2005016543A1 (fr) 2005-02-24
ES2305819T3 (es) 2008-11-01
CN100427210C (zh) 2008-10-22
DE102004037925A1 (de) 2005-02-24
DE502004006931D1 (de) 2008-06-05
ATE392953T1 (de) 2008-05-15
CN1832807A (zh) 2006-09-13

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