EP0808218B1 - Centrifugeuse de poussee - Google Patents

Centrifugeuse de poussee Download PDF

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Publication number
EP0808218B1
EP0808218B1 EP96946050A EP96946050A EP0808218B1 EP 0808218 B1 EP0808218 B1 EP 0808218B1 EP 96946050 A EP96946050 A EP 96946050A EP 96946050 A EP96946050 A EP 96946050A EP 0808218 B1 EP0808218 B1 EP 0808218B1
Authority
EP
European Patent Office
Prior art keywords
pusher
centrifuge
annular cup
centrifugal drum
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
EP96946050A
Other languages
German (de)
English (en)
Other versions
EP0808218A1 (fr
Inventor
Fritz GREINER-STÜRMER
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.)
Siteg Siebtechnik GmbH
Siebtechnik GmbH
Original Assignee
Siteg Siebtechnik GmbH
Siebtechnik 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 Siteg Siebtechnik GmbH, Siebtechnik GmbH filed Critical Siteg Siebtechnik GmbH
Publication of EP0808218A1 publication Critical patent/EP0808218A1/fr
Application granted granted Critical
Publication of EP0808218B1 publication Critical patent/EP0808218B1/fr
Anticipated expiration legal-status Critical
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
    • B04B3/00—Centrifuges with rotary bowls in which solid particles or bodies become separated by centrifugal force and simultaneous sifting or filtering
    • B04B3/02—Centrifuges with rotary bowls in which solid particles or bodies become separated by centrifugal force and simultaneous sifting or filtering discharging solid particles from the bowl by means coaxial with the bowl axis and moving to and fro, i.e. push-type centrifuges

Definitions

  • the invention relates to a push centrifuge, with one mounted in a centrifuge housing Centrifuge drum, a moving floor, a coaxial in the centrifuge drum protruding, connected to the centrifuge housing filling tube for the centrifuged material, and a concentric distributor cone following the filling pipe, the larger of which End with a diameter leaving an annular gap at a distance from the Push floor ends at which one end of the distributor cone facing the push floor surrounding, concentric ring protruding into the centrifuge drum is attached.
  • DE-A 27 06 501 describes a push centrifuge of the type described at the outset, whose walking floor carries a ring in the area of its outer circumference.
  • the moving floor and the ring essentially form the shape of a bowl in such a way that it passes over the distributor cone supplied centrifugal material along the bowl wall formed by the ring, the is inclined outwards at an acute angle relative to the moving floor axis, directly in the thrust zone of the filter cake is introduced before it enters the effective separation area the centrifuge drum arrives.
  • the invention has for its object to flock a push centrifuge, which optimal mass throughput is gentle on the grain and with little wear on the slotted screen separates solids from liquids in the feed zone.
  • this object is achieved in that the ring is designed as a ring cup is that a groove facing the distributor cone with a radially inward directed overflow edge forms.
  • this ring cup Due to the centrifugal force, this ring cup is constantly in operation up to the overflow edge filled with feed material The feed material that continues to flow continuously is fed into the Ring cup is gentle on the rotating suspension ring accelerated to the angular velocity of the ring cup and evenly over the overflow edge overflowing suspension film on the formed Solid cake abandoned.
  • the centrifuge shown in Figure 1 is a Push centrifuge with an inner and an outer Centrifuge drum 1 and 2. On the outer centrifuge drum 2 is by means of spacers 3, the bottom 4 of the penetrate the inner centrifuge drum 1, a moving floor 5 attached, the distributor cone 6 and a ring cup 7th wearing.
  • the distributor cone 6 has a central opening 8. With the moving floor 5, the distributor cone 6 forms the Annular gap 9.
  • Figure 2 shows the moving floor 5 with the Fastening ribs 17 connected distributor cone 6 and the ring cup 7 also connected to the moving floor 5.
  • Figure 3 shows the ring cup 7 with additional axially directed screen openings 14 for preliminary drainage through the moving floor 5.
  • Figure 4 shows the ring cup 7 with integrated Sliding floor sealing ring 15.
  • FIG. 5 shows the moving floor 5 with the ring cup 7 and a distributor cone connected to the filling pipe 11 16, which also makes it easy to take care of the goods on a particular mounting ribs subject to high wear 17 ( Figure 2) can be dispensed with.
  • the ring cup 7 forms a the groove facing the distributor cone 6 or 16
  • the Floor has a profile following a polyline, what also applies to the outer profile of the ring cup 7.
  • the radial distance of the ring cup from the inner jacket of the inner one Centrifuge drum (1) should be in dependence on the given design and operating data of the Centrifuge and the consistency of the centrifuge so be chosen that in the operation of the centrifuge filter cake F building up inside the inner centrifuge drum (1) is outside of the ring cup 7, that is, the ring cup 7 must not be immersed in the filter cake F that forms.

Landscapes

  • Centrifugal Separators (AREA)

Claims (7)

  1. Centrifugeuse à poussée comportant un tambour (1) monté dans un carter (10), un fond de poussée (5), un tuyau de remplissage en matière à centrifuger qui entre coaxialement dans le tambour et est joint au carter (10), et un cône répartiteur concentrique (6, 16) qui succède au tuyau de remplissage et dont l'extrémité de plus grand diamètre se termine, en laissant un interstice annulaire (9), à une certaine distance avant le fond de poussée, auquel est fixé un anneau concentrique qui entoure l'extrémité du cône répartiteur (6, 16) dirigée vers le fond de poussée et entre dans le tambour, caractérisée par le fait que l'anneau est constitué d'une tasse annulaire (7) qui forme une rainure dirigée vers le cône répartiteur (6, 16) et ayant un bord déversoir dirigé radialement vers l'intérieur.
  2. Centrifugeuse à poussée selon la revendication 1, caractérisée par le fait que le fond de la rainure a un profil qui suit un tracé polygonal.
  3. Centrifugeuse à poussée selon la revendication 1, caractérisée par le fait que la tasse annulaire (7) a un profil extérieur qui suit un tracé polygonal.
  4. Centrifugeuse à poussée selon la revendication 1, caractérisée par le fait que la distance radiale entre la tasse annulaire (7) et la surface latérale intérieure du tambour (1) est choisie en fonction des caractéristiques fixées de construction et de fonctionnement de la centrifugeuse et de la consistance de la matière à centrifuger de façon que, pendant le fonctionnement de la centrifugeuse, le gâteau de filtration (F) qui se forme à l'intérieur du tambour (1) soit à l'extérieur de la tasse annulaire (7).
  5. Centrifugeuse à poussée selon la revendication 1, caractérisée par le fait que le rayon extérieur (Ra) de la tasse annulaire (7) est, relativement au rayon intérieur (Ri) et à la longueur utile du fond perforé (ls) du tambour (1), situé dans le domaine de Ra = Ri - 0,15 ls à Ra = Ri - 0,22 ls.
  6. Centrifugeuse à poussée selon la revendication 1, caractérisée par le fait que la tasse annulaire (7) est fixée au fond de poussée (5) et présente des ouvertures de tamisage (14) s'étendant axialement et se poursuivant à travers le fond de poussée.
  7. Centrifugeuse à poussée selon la revendication 6, caractérisée par le fait qu'à la tasse annulaire (7) se joint un joint annulaire de fond perforé (15) dirigé radialement vers l'extérieur.
EP96946050A 1995-12-09 1996-12-06 Centrifugeuse de poussee Expired - Lifetime EP0808218B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19546019A DE19546019C1 (de) 1995-12-09 1995-12-09 Schubzentrifuge
DE19546019 1995-12-09
PCT/DE1996/002345 WO1997021491A1 (fr) 1995-12-09 1996-12-06 Centrifugeuse de poussee

Publications (2)

Publication Number Publication Date
EP0808218A1 EP0808218A1 (fr) 1997-11-26
EP0808218B1 true EP0808218B1 (fr) 2000-09-13

Family

ID=7779682

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96946050A Expired - Lifetime EP0808218B1 (fr) 1995-12-09 1996-12-06 Centrifugeuse de poussee

Country Status (6)

Country Link
US (1) US5935438A (fr)
EP (1) EP0808218B1 (fr)
JP (1) JPH11500356A (fr)
AT (1) ATE196263T1 (fr)
DE (1) DE19546019C1 (fr)
WO (1) WO1997021491A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2014176A1 (fr) 2007-07-12 2009-01-14 Intersnack Knabber-Gebäck GmbH & Co. KG Procédé destiné à la fabrication de produits alimentaires friables peu gras

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7025211B2 (en) 2003-04-16 2006-04-11 Ferrum Ag Double pusher centrifuge
EP1468741A1 (fr) * 2003-04-16 2004-10-20 Ferrum AG Centrifugeuse à poussoir à double action
CA2845099C (fr) * 2011-08-18 2019-07-30 OrgAmi, LLC Separateur liquide-solide pour dechets organiques
DE102012101787A1 (de) 2012-03-02 2013-09-05 Andritz Kmpt Gmbh Schubzentrifuge und Verfahren zum Betreiben einer Schubzentrifuge
KR101231066B1 (ko) * 2012-07-18 2013-02-07 주식회사 천보엔지니어링 막힘방지구조의 분배실을 구비한 원심탈수장치
JP2014091093A (ja) * 2012-11-05 2014-05-19 Tsukishima Kikai Co Ltd 押出式遠心分離機
CN103100491B (zh) * 2012-12-14 2014-07-16 浙江轻机离心机制造有限公司 一种推料离心机转鼓上的推料片
CN105561658B (zh) * 2014-10-14 2018-09-14 中国石油化工股份有限公司 熔融结晶悬浮液的分离纯化设备和方法
KR102504657B1 (ko) * 2019-11-18 2023-02-27 주식회사 엘지화학 가압 원심 탈수기
CN111686943A (zh) * 2020-06-22 2020-09-22 湘潭大学 一种活塞推料离心机耐磨推块装置及实施方法

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1030771B (de) * 1956-04-06 1958-05-22 Krauss Maffei Ag Schubzentrifuge fuer zaehfluessige, bei Raumtemperatur erstarrende kristallinische Schleudergueter
DE2542916B2 (de) * 1975-09-26 1980-08-07 Siebtechnik Gmbh, 4330 Muelheim Zweistufige Schubzentrifuge
CH598868A5 (fr) * 1975-10-21 1978-05-12 Escher Wyss Ag
DE2706501C2 (de) * 1977-02-16 1982-07-29 Otwin Dipl.-Ing. Dr. 7000 Stuttgart Imhof Dem Filterkuchen zugewandte Oberfläche eines Kreisringes eines Schubbodens einer Schubzentrifuge
CH624858A5 (fr) * 1977-11-25 1981-08-31 Escher Wyss Ag
DE4308749C1 (de) * 1993-03-19 1994-04-07 Krauss Maffei Ag Schubzentrifuge

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2014176A1 (fr) 2007-07-12 2009-01-14 Intersnack Knabber-Gebäck GmbH & Co. KG Procédé destiné à la fabrication de produits alimentaires friables peu gras

Also Published As

Publication number Publication date
WO1997021491A1 (fr) 1997-06-19
DE19546019C1 (de) 1997-02-20
US5935438A (en) 1999-08-10
JPH11500356A (ja) 1999-01-12
EP0808218A1 (fr) 1997-11-26
ATE196263T1 (de) 2000-09-15

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