EP0808218A1 - Centrifugeuse de poussee - Google Patents

Centrifugeuse de poussee

Info

Publication number
EP0808218A1
EP0808218A1 EP96946050A EP96946050A EP0808218A1 EP 0808218 A1 EP0808218 A1 EP 0808218A1 EP 96946050 A EP96946050 A EP 96946050A EP 96946050 A EP96946050 A EP 96946050A EP 0808218 A1 EP0808218 A1 EP 0808218A1
Authority
EP
European Patent Office
Prior art keywords
centrifuge
pusher
ring cup
floor
push
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.)
Granted
Application number
EP96946050A
Other languages
German (de)
English (en)
Other versions
EP0808218B1 (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

Links

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 a centrifuge drum, a push floor, a filling tube for the centrifugal material projecting coaxially into the centrifuge drum and connected to the centrifuge housing, and a concentric distributor cone following the filling tube, the end of which having the larger diameter with the release of an annular gap Distance in front of the moving floor ends.
  • centrifugal centrifuges of this type there is a need to accelerate the centrifuged material to increase the mass throughput while protecting sensitive solid particles and reducing machine wear, in particular wear on the slotted sieve in the feed zone, as far as possible to the centrifuged material fed up to the angular velocity of the solid cake in the centrifuge drum.
  • a thrust centrifuge is also known, in which the centrifugal material is to be accelerated to a high degree by internals between the pushing floor and the guide disk similar to pump impellers, but the constructionally high radial acceleration component, which is partially reinforced by the number of impeller vanes, leads to high wear of the slotted screen covering in the feed zone.
  • the object of the invention is to create a pusher centrifuge which separates solids from liquids in the feed zone in a manner that is gentle on the grain and with minimal wear on the slotted screen in the feed zone.
  • this object is achieved in that a concentric ring cup which projects into the centrifuge drum and surrounds the end of the distributor cone which faces the end of the moving floor is fastened to the moving floor.
  • the ring cup Due to the centrifugal force, the ring cup is constantly filled with feed material up to the overflow edge.
  • the feed material which continues to flow continuously, is fed into the The ring cup is gently accelerated to the angular velocity of the ring cup by the rotating suspension ring and placed on the solid cake formed over the overflow edge in the form of a uniformly flowing suspension film.
  • Figure 1 shows a longitudinal section of the pusher centrifuge according to the invention
  • FIGS. 2 to 5 show, on an enlarged scale, sectional views of details of the push centrifuge according to the invention modified according to the invention.
  • the centrifuge shown in FIG. 1 is a push centrifuge with an inner and an outer centrifugal drum 1 and 2.
  • a push floor 5 is attached to the outer centrifugal drum by means of spacer bolts 3, which penetrate the bottom 4 of the inner centrifugal drum 1, which the distributor cone 6 and wearing a ring cup 7.
  • the distributor cone 6 has a central opening 8. With the moving floor 5, the distributor cone 6 forms the annular gap 9.
  • a filling tube 11 which is fixedly connected to the centrifuge housing 10, projects for the supply of the centrifuged material.
  • the inner and outer centrifugal drums 1 and 2 have concentric shafts 12 and 13 which are rotatably mounted in the centrifuge housing, the shaft 12 of the inner centrifugal drum 1 carrying out a reciprocating lifting movement in the direction of the double arrow fl in addition to the rotary movement.
  • FIG. 2 shows the push floor 5 with the distributor cone 6 connected via fastening ribs 17 and the ring cup 7 also connected with the push floor 5.
  • FIG. 3 shows the ring cup 7 with additional axially directed sieve openings 14 for preliminary dewatering through the push floor 5.
  • FIG. 4 shows the ring cup 7 with an integrated sliding floor sealing ring 15.
  • FIG. 5 shows the push floor 5 with the ring cup 7 and a distributor cone 16 connected to the filling tube 11, which means that fastening ribs 17 (FIG. 2) that are particularly exposed to wear can also be dispensed with in order to protect the feed material.
  • the ring cup 7 forms a groove facing the distributor cone 6 or 16, the bottom of which has a profile following a polygon, which also applies to the outer profile of the ring cup 7.
  • the radial distance of the ring cup from the inner jacket of the centrifuge drum should depend on the given design and operating data of the centrifuge and the consistency of the centrifuge be chosen so that during operation of the centrifuge, the filter cake F building up inside the centrifuge drum lies outside the ring cup 7, that is, the ring cup 7 must not be immersed in the filter cake F which is being formed.

Landscapes

  • Centrifugal Separators (AREA)
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
DE19546019 1995-12-09
DE19546019A DE19546019C1 (de) 1995-12-09 1995-12-09 Schubzentrifuge
PCT/DE1996/002345 WO1997021491A1 (fr) 1995-12-09 1996-12-06 Centrifugeuse de poussee

Publications (2)

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

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1468741A1 (fr) * 2003-04-16 2004-10-20 Ferrum AG Centrifugeuse à poussoir à double action
US7025211B2 (en) 2003-04-16 2006-04-11 Ferrum Ag Double pusher centrifuge
ATE481000T1 (de) 2007-07-12 2010-10-15 Intersnack Knabber Gebaeck Gmb Verfahren zur herstellung von fettreduzierten frittierten nahrungsmitteln
EP2758607B1 (fr) * 2011-08-18 2019-08-07 Orgami LLC Séparateur liquide-solide pour déchets 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

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO9721491A1 *

Also Published As

Publication number Publication date
US5935438A (en) 1999-08-10
WO1997021491A1 (fr) 1997-06-19
DE19546019C1 (de) 1997-02-20
ATE196263T1 (de) 2000-09-15
EP0808218B1 (fr) 2000-09-13
JPH11500356A (ja) 1999-01-12

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