EP1414582B1 - Anneau de deviation pour centrifugeuse autodeverseuse - Google Patents

Anneau de deviation pour centrifugeuse autodeverseuse Download PDF

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Publication number
EP1414582B1
EP1414582B1 EP02747462A EP02747462A EP1414582B1 EP 1414582 B1 EP1414582 B1 EP 1414582B1 EP 02747462 A EP02747462 A EP 02747462A EP 02747462 A EP02747462 A EP 02747462A EP 1414582 B1 EP1414582 B1 EP 1414582B1
Authority
EP
European Patent Office
Prior art keywords
self
centrifuge according
discharging centrifuge
collection vessel
deflector ring
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
EP02747462A
Other languages
German (de)
English (en)
Other versions
EP1414582A1 (fr
EP1414582B2 (fr
Inventor
Ernst-Ulrich Himmen
Markus Longerich
Jürgen Scholz
Detlef Freyer
Ulrich Esser
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
GEA Westfalia Separator GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
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Application filed by GEA Westfalia Separator GmbH filed Critical GEA Westfalia Separator GmbH
Publication of EP1414582A1 publication Critical patent/EP1414582A1/fr
Application granted granted Critical
Publication of EP1414582B1 publication Critical patent/EP1414582B1/fr
Publication of EP1414582B2 publication Critical patent/EP1414582B2/fr
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Expired - Lifetime legal-status Critical Current

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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
    • B04B1/10—Centrifuges with rotary bowls provided with solid jackets for separating predominantly liquid mixtures with or without solid particles with discharging outlets in the plane of the maximum diameter of the bowl
    • 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
    • B04B11/04—Periodical feeding or discharging; Control arrangements therefor
    • 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
    • B04B11/04—Periodical feeding or discharging; Control arrangements therefor
    • B04B11/05—Base discharge
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
    • B04B—CENTRIFUGES
    • B04B7/00—Elements of centrifuges
    • B04B7/02—Casings; Lids
    • B04B7/04—Casings facilitating discharge
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
    • B04B—CENTRIFUGES
    • B04B9/00—Drives specially designed for centrifuges; Arrangement or disposition of transmission gearing; Suspending or balancing rotary bowls
    • B04B9/12—Suspending rotary bowls ; Bearings; Packings for bearings

Definitions

  • the invention relates to equipment for the separation of liquids and solids in centrifuges, in particular Tellerseparatoren with automatic discharge.
  • the invention particularly relates to a paste deflecting ring with an annular baffle for a self-discharging centrifuge and the self-discharging centrifuge.
  • Tellerseparatoren are centrifuges, equipped with a central inlet for the suspension, located in the drum conical plates, which are used by the existing centrifugal force and the short sedimentation as a separator for fine particles.
  • the deposited particles slide along the plates into the solids collection space toward the largest diameter of the drum.
  • the clarified liquid is depressurized via an overflow weir or by means of a trained as a pump impeller so-called.
  • Gripper dissipated under pressure.
  • drums For low solids content, disc separators with a closed drum are in use, which must be cleared by hand. For higher solids contents, the drums are equipped with an emptying system which allows the entire contents of the drum to be discharged as solids and liquid as sludge.
  • the DE 198 46 535 A discloses a centrifuge with which a largely lossless solids extraction is made possible from a centrifuged material.
  • the separated from the centrifuge drums solid is collected in a bag, which is inserted into a container, the centrifuge drum protrudes into the interior of the container and into an upper opening of the bag.
  • solids can be collected lossless from the centrifuged.
  • the WO 95/21697 discloses a device for centrifugal separation, for example for the separation of sugar, which has, inter alia, a deflector.
  • the invention now uses in the Aufrahabe to create a self-discharging centrifuge for the process engineering treatment of highly concentrated pastes with a hanging drum with two or more discharge slots, which allows a gentle deflection of the ejected from the discharge slot solid into a receptacle of the centrifuge.
  • the paste discharge takes place under centrifugal acceleration in the horizontal direction on a circular circumference and could be collected in an annular container.
  • the invention relates to a device consisting of a Pasteumlenkring and a connected or detachable paste container, which is able to receive the paste from several drum emptying.
  • This ring is designed so that a deflection is associated with the lowest possible product losses.
  • the invention furthermore relates to a self-discharging centrifuge for the process-engineering treatment of highly concentrated pastes at least consisting of an optionally coolable housing, a feed line for the suspension, a discharge for the clarified liquid, a suspended drum connected to an overhead drive part with two or more discharge slots, one optionally detachable from the housing collecting container and a discharge device for the paste, characterized in that the centrifuge comprises a deflection ring according to the invention.
  • the deflection ring is formed with a jacket cooling.
  • the cooling jacket is e.g. a double wall on the outer circumference of the Umlenkringes, which can be traversed by a heat exchange medium.
  • a special deflecting ring is characterized in that the inner contour of the baffle wall is formed immediately below the impact surface, in particular over any longitudinal section of the deflecting ring, circular or parabolic.
  • the deflection is made even more gentle on the product and further reduces the shear.
  • the deflection ring is formed so that the baffle wall in the region below the Austragsschlitzes a curved inner contour, seen in geometric longitudinal section, having a radius of curvature of> 20 mm, preferably from 30 to 50 mm.
  • the latter curved wall surface can also be designed according to a curve with a variable radius over the course of travel.
  • the baffle wall of the deflection ring has an angle of attack y to the horizontal of 3 to 30 °, preferably 5 to 15 °, in the region above the opening width of the discharge slot.
  • a preferred variant of the deflection ring is characterized in that the tangent of the inner contour of the baffle surface in the region below the deflection contour of the deflection ring relative to the vertical in the geometric longitudinal section seen an angle of attack 3 to 30 °, preferably from 5 to 15 °.
  • the vertical is parallel to the axis of rotation of the drum.
  • the deflection ring has in a preferred variant at its lower end a tear-off edge, which is optionally undercut.
  • the deflecting ring is in particular connected in one piece with a collecting container or particularly preferably separably connected to the collecting container of the centrifuge.
  • the product-contacting surface of the deflecting ring is provided with a lubricious coating, in particular made of PTFE or metal alloys.
  • the deflection ring has one or more nozzles for the injection of liquid nitrogen.
  • nozzles are in particular distributed on the circumference of the deflection ring below the impact surface, which corresponds to the opening width of the Austragsschlitzes.
  • the collecting container is preferably configured cylindrically conically narrowing downwards or downwards.
  • the conical constriction of the collecting container facilitates the discharge of e.g. frozen product from the container.
  • the upper edge of the container is in particular designed so that below the preferably attached spoiler lip of the deflection ring results in a low-flow turbulence.
  • the product-contacting inner surfaces of the collecting container are also provided in a preferred embodiment with a lubricious coating, in particular of PTFE or metal alloys.
  • a bag of flexible material is particularly preferably inserted, which can be fixed in particular by means of negative pressure to the container walls.
  • Suitable materials for the bag are all film plastics, in particular polypropylene, polyethylene, polyvinyl chloride.
  • the collecting container is formed in a preferred further form of the centrifuge with a tempering device, in particular with a jacket cooling.
  • the collecting container preferably additionally has means for transport, in particular by means of conveyor devices.
  • the upper opening of the collecting container is particularly preferably designed as a partial flange.
  • the collecting container is closable, for example, with a lid and designed so that docking with other procedural devices, in particular a dissolving vessel is possible.
  • the collecting container is designed jacket cooling.
  • one or more nozzles may be mounted, through which liquid nitrogen can be introduced into the gas space in the vicinity of the rotating drum in order to suppress the heating of the discharge space by air friction.
  • the container may be made of metallic or non-metallic materials.
  • the container can be arranged detachably or non-detachably in a frame which is transported or stackable by means of industrial trucks.
  • the container can be provided with a lid or equipped with an automatic opening slide and be suitable for loading dissolving boilers.
  • the container can be equipped with a mashing or melting device, which allows the content to be conveyed as a flowable suspension in the dissolving vessel.
  • the container can also be equipped with jacket cooling, eg for use in biotechnology.
  • the discharge of a biological paste obtained in the fractionation of human blood plasma is carried out from a centrifuge drum 14 with an outer diameter of 468 mm at a drum speed of 7000 l / min and deflection of the blood plasma paste by a Pasteumlenkring 4.
  • the centrifuge 1 has a drive part 13 for driving the drum 14 with a supply line 11 for the plasma.
  • the drum 14 is suspended in a separable lower part of the centrifuge 1, which comprises the jacket housing 10, with feed lines 19 and discharges 22 for a cooling liquid and feed lines 9 for liquid nitrogen, the deflection ring 4 and the collecting container 7.
  • the receptacle has a cooling jacket 16 with leads 20 and leads 21 and welded transport tabs 18.
  • the drum 14 also has an outlet 12 for the clarified liquid.
  • Fig. 2 is the deflection ring 4 in detail again.
  • the angle ⁇ above the opening width of the discharge slot 3 is also inclined by 15 ° to the horizontal, so that the impact surface 8 itself and the overlying area in the projection form a straight line.
  • the discharged paste is deflected by a, viewed in longitudinal section, circular contour with a radius of curvature r of 45 ° in the direction of the container bottom of the collecting container 7.
  • the Pasteumlenkring 5 has at its lower end a spoiler edge. 6

Landscapes

  • Centrifugal Separators (AREA)

Claims (15)

  1. Centrifugeuse avec évacuation automatique pour le traitement technique de pâtes fortement concentrées, formée par un carter (10), apte à être refroidi le cas échéant, une conduite d'admission (11) pour la suspension, une conduite d'évacuation (12) pour le liquide filtré, un tambour (14) suspendu, relié à un élément d'entraînement (13) supérieur et muni de deux ou plusieurs fentes d'évacuation (3), et un collecteur (7), ladite centrifugeuse comportant, en outre, un anneau de déviation des pâtes, muni du déflecteur (2) annulaire, caractérisée en ce qu'un angle d'incidence α formé entre la tangente d'un déflecteur (2), situé en face des fentes d'évacuation, de l'anneau de déviation (4) et l'horizontale est de l'ordre de 3 à 60° par référence à la totalité de la largeur d'ouverture de la fente d'évacuation (3), et en ce que l'anneau de déviation est muni d'un système de refroidissement (8) de la paroi latérale.
  2. Centrifugeuse avec évacuation automatique selon la revendication 1, caractérisée en ce que le contour intérieur du déflecteur (2), directement en dessous de la surface de rebondissement, en particulier par référence à une coupe longitudinale quelconque de l'anneau de déviation des pâtes (4), est réalisé avec une forme circulaire ou en forme de parabole.
  3. Centrifugeuse avec évacuation automatique selon la revendication 2, caractérisée en ce que le déflecteur (2), dans la zone en dessous de la fente d'évacuation (3), possède un contour intérieur courbe par référence à une coupe longitudinale géométrique, avec un rayon de courbure supérieur à 20 mm, de préférence de 30 à 50 mm.
  4. Centrifugeuse avec évacuation automatique selon l'une quelconque des revendications 1 à 3, caractérisée en ce que la paroi de rebondissement (2), dans la zone au-dessus de la largeur d'ouverture de la fente d'évacuation (3), forme avec l'horizontale un angle d'incidence de 3 à 30°, de préférence de 5 à 15°.
  5. Centrifugeuse avec évacuation automatique selon l'une quelconque des revendications 1 à 4, caractérisée en ce que la tangente du contour intérieur de la surface de déflection (5), dans la zone en dessous du contour de déviation de l'anneau de déviation des pâtes (4), forme avec la verticale, par référence à une coupe longitudinale géométrique, un angle d'incidence β jusqu'à 30°, de préférence de 5 à 15°.
  6. Centrifugeuse avec évacuation automatique selon l'une quelconque des revendications 1 à 5, caractérisée en ce que l'anneau de déviation des pâtes (4) comporte, au niveau de son extrémité inférieure, un bord de rupture (6) qui, le cas échéant, est détalonné.
  7. Centrifugeuse avec évacuation automatique selon l'une quelconque des revendications 1 à 6, caractérisée en ce que l'anneau de déviation des pâtes (4) est relié d'un seul tenant à un collecteur ou de manière amovible au collecteur (7) de la centrifugeuse (1).
  8. Centrifugeuse avec évacuation automatique selon l'une quelconque des revendications 1 à 7, caractérisée en ce que la surface de l'anneau de déviation des pâtes (4), laquelle est en contact avec le produit, est munie d'un revêtement apte au glissement, réalisé en particulier en PTFE ou dans des alliages métalliques.
  9. Centrifugeuse avec évacuation automatique selon l'une quelconque des revendications 1 à 8, caractérisée en ce que l'anneau de déviation des pâtes (4) comporte une ou plusieurs buses (9) pour l'injection d'azote liquide.
  10. Centrifugeuse avec évacuation automatique selon l'une quelconque des revendications 1 à 9, caractérisée en ce que le collecteur (7) est réalisé sous forme cylindrique ou en se rétrécissant de manière conique vers le bas.
  11. Centrifugeuse avec évacuation automatique selon l'une quelconque des revendications 1 à 10, caractérisée en ce que les surfaces intérieures du collecteur (7), lesquelles sont en contact avec le produit, sont munies d'un revêtement apte au glissement, réalisé en particulier en PTFE ou dans des alliages métalliques.
  12. Centrifugeuse avec évacuation automatique selon l'une quelconque des revendications 1 à 11, caractérisée en ce qu'une poche (17) en matériau flexible est introduite dans le collecteur (7) et peut être immobilisée contre les parois du récipient en particulier au moyen d'une dépression.
  13. Centrifugeuse avec évacuation automatique selon l'une quelconque des revendications 1 à 12, caractérisée en ce que le collecteur (7) est équipé d'un système de réglage de la température (16), en particulier avec un système de refroidissement de paroi latérale.
  14. Centrifugeuse avec évacuation automatique selon l'une quelconque des revendications 1 à 13, caractérisée en ce que le collecteur (7) comporte des moyens (18) supplémentaires pour un transport, en particulier au moyen de systèmes à chariots de manutention.
  15. Centrifugeuse avec évacuation automatique selon l'une quelconque des revendications 1 à 14, caractérisée en ce que l'ouverture supérieure du collecteur (7) est réalisée sous la forme d'un collet partiel.
EP02747462.6A 2001-07-19 2002-07-08 Anneau de deviation pour centrifugeuse autodeverseuse Expired - Lifetime EP1414582B2 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10135317A DE10135317A1 (de) 2001-07-19 2001-07-19 Umlenkring für eine selbstaustragende Zentrifuge
DE10135317 2001-07-19
PCT/EP2002/007563 WO2003008105A1 (fr) 2001-07-19 2002-07-08 Anneau de deviation pour centrifugeuse autodeverseuse

Publications (3)

Publication Number Publication Date
EP1414582A1 EP1414582A1 (fr) 2004-05-06
EP1414582B1 true EP1414582B1 (fr) 2010-03-10
EP1414582B2 EP1414582B2 (fr) 2016-07-20

Family

ID=7692447

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02747462.6A Expired - Lifetime EP1414582B2 (fr) 2001-07-19 2002-07-08 Anneau de deviation pour centrifugeuse autodeverseuse

Country Status (9)

Country Link
US (1) US7204795B2 (fr)
EP (1) EP1414582B2 (fr)
JP (1) JP4301939B2 (fr)
CN (1) CN1290622C (fr)
AT (1) ATE460229T1 (fr)
CA (1) CA2453975C (fr)
DE (2) DE10135317A1 (fr)
DK (1) DK1414582T4 (fr)
WO (1) WO2003008105A1 (fr)

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DE10135317A1 (de) * 2001-07-19 2003-01-30 Bayer Ag Umlenkring für eine selbstaustragende Zentrifuge
DE10139466A1 (de) * 2001-08-10 2003-02-20 Bayer Ag Verfahren zur Abtrennung von Blutplasmapartikeln aus einer Blutplasmasuspension
JP5354343B2 (ja) 2005-11-18 2013-11-27 ウステル・テヒノロジーズ・アクチエンゲゼルシヤフト ファンシーヤーンの特徴付け方法
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US8556794B2 (en) 2010-11-19 2013-10-15 Kensey Nash Corporation Centrifuge
US8317672B2 (en) 2010-11-19 2012-11-27 Kensey Nash Corporation Centrifuge method and apparatus
US8870733B2 (en) 2010-11-19 2014-10-28 Kensey Nash Corporation Centrifuge
US20220031925A1 (en) 2010-11-19 2022-02-03 Dsm Ip Assets B.V. Centrifuge
US8469871B2 (en) 2010-11-19 2013-06-25 Kensey Nash Corporation Centrifuge
US8394006B2 (en) 2010-11-19 2013-03-12 Kensey Nash Corporation Centrifuge
CN102319640A (zh) * 2011-06-16 2012-01-18 安徽赛而特离心机有限公司 一种碟式分离机的机身
CN102911076B (zh) * 2012-11-07 2015-09-02 河北冀衡（集团）药业有限公司 对乙酰氨基酚精制后的处理装置及其处理方法
ES2754326T3 (es) 2014-01-31 2020-04-17 Dsm Ip Assets Bv Centrifugadora de tejido adiposo y procedimiento de uso
DE102017106801B3 (de) 2017-03-29 2018-08-02 Gea Mechanical Equipment Gmbh Selbstentleerender Separator zum schonenden Austrag von scherempfindlichen Produkten sowie Verfahren zu seinem Betrieb
DE102017113583A1 (de) 2017-06-20 2018-12-20 Bluecatbio Gmbh Zentrifuge
CN108097478B (zh) * 2018-01-31 2024-01-26 浙江轻机离心机制造有限公司 防止乳胶浓缩分离过程粘结的转鼓芯部冷却装置
CN112403690B (zh) * 2019-08-22 2022-06-10 晨光生物科技集团股份有限公司 一种防爆卧式离心机

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DE10139466A1 (de) * 2001-08-10 2003-02-20 Bayer Ag Verfahren zur Abtrennung von Blutplasmapartikeln aus einer Blutplasmasuspension
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Also Published As

Publication number Publication date
HK1069141A1 (en) 2005-05-13
WO2003008105A1 (fr) 2003-01-30
DK1414582T3 (da) 2010-06-21
EP1414582A1 (fr) 2004-05-06
US20040176233A1 (en) 2004-09-09
CN1533307A (zh) 2004-09-29
JP2004534652A (ja) 2004-11-18
ATE460229T1 (de) 2010-03-15
DE10135317A1 (de) 2003-01-30
JP4301939B2 (ja) 2009-07-22
CA2453975C (fr) 2010-01-26
EP1414582B2 (fr) 2016-07-20
US7204795B2 (en) 2007-04-17
DK1414582T4 (da) 2016-11-14
CN1290622C (zh) 2006-12-20
DE50214269D1 (de) 2010-04-22
CA2453975A1 (fr) 2003-01-30

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