EP0472554B2 - Centrifugeuse a filtre retourne - Google Patents

Centrifugeuse a filtre retourne Download PDF

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Publication number
EP0472554B2
EP0472554B2 EP90906988A EP90906988A EP0472554B2 EP 0472554 B2 EP0472554 B2 EP 0472554B2 EP 90906988 A EP90906988 A EP 90906988A EP 90906988 A EP90906988 A EP 90906988A EP 0472554 B2 EP0472554 B2 EP 0472554B2
Authority
EP
European Patent Office
Prior art keywords
drum
cover
feed opening
closure element
feed
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
EP90906988A
Other languages
German (de)
English (en)
Other versions
EP0472554B1 (fr
EP0472554A1 (fr
Inventor
Hans Gerteis
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.)
Heinkel Industriezentrifugen GmbH and Co
Original Assignee
Heinkel Industriezentrifugen GmbH and Co
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=6380933&utm_source=***_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0472554(B2) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Heinkel Industriezentrifugen GmbH and Co filed Critical Heinkel Industriezentrifugen GmbH and Co
Priority to AT90906988T priority Critical patent/ATE95446T1/de
Publication of EP0472554A1 publication Critical patent/EP0472554A1/fr
Publication of EP0472554B1 publication Critical patent/EP0472554B1/fr
Application granted granted Critical
Publication of EP0472554B2 publication Critical patent/EP0472554B2/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
    • 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
    • B04B3/025—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 with a reversible filtering device

Definitions

  • the invention relates to an inverting filter centrifuge with a drum which is supported in a housing and has radial filter passages, with a cover which closes the free end face thereof, the drum and cover being axially displaceable relative to one another, with a filling opening provided on the cover for suspension to be filtered and with a the filler tube penetrating the filler opening, the filler opening of the cover being closable by a closure element which rotates together with the drum.
  • the locking element at the filling opening of the lid is merely a splash guard which prevents liquid from splashing out of the drum.
  • inverting filter centrifuges it is sometimes advantageous to supply the drum with a pressurized gas (for example superheated steam) in order to increase the hydraulic pressure in the centrifugal field of the drum or to blow the filter cake through for the purpose of drying it or to subject it to steam washing Alternatively, it may also be desirable to pressurize the drum.
  • a pressurized gas for example superheated steam
  • the filling tube is designed to be retractable from the filling opening of the lid and, when the filling tube is retracted, the filling opening can be closed in a pressure-tight manner by the closure element arranged on the lid and avoiding a frictional connection, or in that a movable closure element is provided which during of the centrifuging process from the inside of the drum is pressure-tight and can be placed over the filling opening of the lid and the end of the filling tube, avoiding a frictional connection.
  • the invertible filter centrifuge shown in FIG. 1 comprises a housing 1, which is only indicated schematically and which tightly encloses the entire machine, in which a hollow shaft 3 is rotatably mounted in bearings 4 on a stationary machine frame 2.
  • the right-hand end (not shown) of the hollow shaft 3 projecting beyond the bearing 4 is connected to a drive motor (also not shown) via which the hollow shaft 3 can be set in rapid rotation.
  • a shaft 5 is arranged in a rotationally fixed but displaceable manner.
  • the shaft 5 rotates together with the hollow shaft 3, but is axially displaceable in it.
  • a pot-shaped centrifugal drum 7 is flanged with its base 8 on the left end of the hollow shaft 3 in FIG. 1, projecting beyond the bearing 4.
  • the drum 7 has radially extending passage openings 11 on its circular cylindrical side wall 9.
  • the drum 7 is open on its end face opposite the bottom 8.
  • the other edge 16 of the filter cloth 15 is correspondingly tightly connected to a base piece 17 which is rigidly connected to the displaceable, displaceable shaft 5 which freely penetrates the bottom 8.
  • a centrifugal chamber cover 19 is rigidly fastened via stud bolts 18, leaving a space free, which tightly closes the centrifugal chamber of the drum 7 by resting on its opening edge and together with the bottom part 17 by axially pushing the shaft 5 out of the hollow shaft 3 free of Drum 7 can be lifted off.
  • the drum 7 can also be axially displaceable relative to the stationary cover 19 for the same purpose.
  • a filling tube 21 is arranged on the left side of the inverting filter centrifuge in FIG. 1, which serves to supply a suspension to be broken down into its solid and liquid components into the centrifugal space of the drum 7.
  • the free end of the filling tube 21 is introduced into the interior of the drum through a central filling opening 22 of the cover 19 and, after the drum has been filled, is drawn back into the position shown in FIG.
  • the filling opening 22 is formed by a pinch valve 25, which is known per se and is formed by a hose 23 lockable. Via a line 26 penetrating the shaft 5, the stud 18 and the cover 19, the interior of the hose 23 can be filled with a hydraulic or pneumatic pressure medium, as a result of which the pinch valve 25 is closed in a pressure-tight manner. This state is shown in Fig. 2.
  • the filling tube 21 in the position shown in FIG. 1 can penetrate into a bore 27 of the shaft 5 through the now opened pinch valve 25 in a space-saving manner.
  • the pinch valve 25 is designed so that there is practically no friction between the hose 23 and the filling tube 21 in its open state.
  • the pinch valve 25 described can also be replaced by a valve of a different type, for example a ball valve or a slide valve, as long as it is ensured that such a sealing element, which rotates together with the drum 7, closes the drum tightly at the filling opening 22 and, when open, prevents the filling tube 21 from penetrating allowed without friction.
  • a valve of a different type for example a ball valve or a slide valve
  • the inverting filter centrifuge initially assumes the position shown in FIG. 1.
  • the displaceable shaft 5 is retracted into the hollow shaft 3, as a result of which the bottom piece 17 connected to the shaft 5 lies in the vicinity of the bottom 8 of the centrifugal drum 7 and the filter cloth 15 is inserted into the drum in such a way that it lies inside it.
  • the centrifugal chamber cover 19 has placed itself tightly on the opening edge of the drum 7.
  • the suspension to be filtered is introduced through the filling tube 21 which is pushed through the open pinch valve.
  • the pinch valve 25 is closed and the drum is possibly rotated more rapidly.
  • the liquid components of the suspension pass through the openings 11 of the drum and are derived from a baffle plate 28.
  • the solid particles of the suspension are stopped by the filter cloth 15.
  • an overpressure can be generated inside the drum 7 via a line 29 formed in the shaft 5. If necessary, the formation of negative pressure in the interior of the drum is also possible via this line 29. In other cases, the change in the internal pressure in the drum 7 can also be omitted. Nevertheless, it can be important to close the fill opening 22 tightly by means of the pinch valve 25 or another closure element.
  • the inverting filter centrifuge After the dropping off of the solid particles under the influence of the centrifugal force, the inverting filter centrifuge is brought back into its operating position according to FIG. 1 by pushing back the shaft 5, the filter cloth 15 turning back in the opposite direction. In this way, operation of the centrifuge with a continuously rotating centrifugal drum 7 is possible and the pressure conditions in the drum 7 can be set as desired.
  • FIG. 3 shows a modified embodiment of an inverting filter centrifuge.
  • the shaft 5 in the embodiment according to FIG. 3 is also designed as a hollow shaft.
  • a piston rod-shaped closure element 32 is displaceable into the interior of the drum 7 in such a way that it seals the filling opening 22 from the inside of the drum.
  • a line 33 is formed in the closure element 32, with the aid of which a negative or positive pressure can be generated inside the drum 7.
  • the closure element 32 can be actuated hydraulically or pneumatically in a manner known per se. In order to produce a pressure-tight closure, the end of the closure element 32 resting on the inside of the centrifugal chamber cover 19 has a seal 34.
  • the closure element 32 is formed at its free front end as a sleeve 35, in the interior of which the end of the filling tube 21 protruding into the drum 7 can penetrate.
  • FIG. 3 The embodiment of an inverting filter centrifuge according to FIG. 3 works in the same way as previously described with reference to the embodiment according to FIG. 1.
  • the filling tube 21 does not need to be pushed back and forth in the embodiment according to FIG. 3, but can be rigidly connected to the machine frame 2 in this respect.
  • the closure element 32 is withdrawn (to the right in FIG. 3) so that the opening of the filler tube 21 is exposed.
  • the closure element 32 assumes the position shown in FIG. 3.

Landscapes

  • Centrifugal Separators (AREA)

Abstract

Une centrifugeuse à filtre retourné comprend un tambour (7) non soutenu, monté de manière rotative dans un logement (1), pourvu de passages radiaux de filtrat et dont une des faces frontales libres est fermée par un couvercle (19). Le tambour (7) et le couvercle (19) sont axialement mobiles l'un par rapport à l'autre. Un orifice de remplissage (22) est ménagé dans le couvercle pour la suspension à filtrer et un tuyau de remplissage (21) traverse l'orifice de remplissage. L'orifice de remplissage (22) du couvercle (19) peut être hermétiquement fermé par un élément de fermeture (25) qui tourne avec le tambour et qui est découplé du tuyau de remplissage (21) afin d'éviter son entraînement par friction.

Claims (7)

  1. Centrifugeuse à filtre retourné, comprenant un tambour monté rotatif en porte-à-faux dans une enveloppe, et présentant des ouvertures de filtration radiales, un couvercle qui ferme sa face frontale libre, le tambour et le couvercle pouvant se déplacer en translation axiale l'un par rapport à l'autre, une ouverture de remplissage prévue sur le couvercle pour introduire la suspension à filtrer, et un tube de remplissage qui traverse l'ouverture de remplissage, l'ouverture de remplissage du couvercle pouvant être obturée par un élément obturateur qui tourne avec le tambour,
    caractérisée
    en ce que le tube de remplissage (21) est constitué de manière à pouvoir être rétracté de l'ouverture de remplissage (22) du couvercle (19), et, lorsque le tube de remplissage (21) est rétracté, l'ouverture de remplissage peut être obturée à joint étanche à la pression et en évitant une liaison à friction par l'élément obturateur (25) agencé sur le couvercle.
  2. Centrifugeuse à filtre retourné, comprenant un tambour monté rotatif en porte-à-faux dans une enveloppe, et présentant des ouvertures de filtration radiales, un couvercle qui ferme sa face frontale libre, le tambour et le couvercle pouvant se déplacer en translation axiale l'un par rapport à l'autre, une ouverture de remplissage prévue sur le couvercle pour introduire la suspension à filtrer, et un tube de remplissage qui traverse l'ouverture de remplissage, l'ouverture de remplissage du couvercle pouvant être obturée par un élément obturateur qui tourne avec le tambour,
    caractérisée
    en ce qu'il est prévu un élément obturateur mobile (32) qui peut, pendant l'opération de centrifugation, être appliqué à joint étanche à la pression et en évitant une liaison à friction sur l'ouverture de remplissage (22) du couvercle (19) et sur l'extrémité du tube de remplissage (21), en agissant de l'intérieur du tambour.
  3. Centrifugeuse à filtre retourné, selon la revendication 1, caractérisée en ce que le tambour peut être relié à une source de pression ou de dépression au niveau de son côté qui est à l'opposé du tube de remplissage (21), par l'intermédiaire d'une conduite (29, 33).
  4. Centrifugeuse à filtre retourné selon la revendication 1, caractérisée en ce que, dans l'ouverture de remplissage (21) est disposé un obturateur (25) qui forme dans l'une de ses positions, un passage libre pour le tube de remplissage (22) et qui, dans son autre position, ferme l'ouverture de remplissage (22) à joint étanche lorsque le tube de remplissage (21) est rétracté.
  5. Centrifugeuse à filtre retourné selon la revendication 4, caractérisée en ce que l'obturateur (25) est un obturateur à manchon déformable actionné par fluide.
  6. Centrifugeuse à filtre retourné selon la revendication 2, caractérisée en ce que le tambour (7) est monté sur un arbre creux (3), et l'élément obturateur (32) est monté coulissant dans l'arbre creux (3) de manière à fermer hermétiquement l'ouverture de remplissage (22) en agissant de l'intérieur du tambour (7).
  7. Centrifugeuse à filtre retourné selon la revendication 6, caractérisée en ce que l'élément obturateur (32) présente la forme d'un manchon (35) dans lequel l'extrémité du tube de remplissage (21) est engagée.
EP90906988A 1989-05-19 1990-05-11 Centrifugeuse a filtre retourne Expired - Lifetime EP0472554B2 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT90906988T ATE95446T1 (de) 1989-05-19 1990-05-11 Stuelpfilterzentrifuge.

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE3916266A DE3916266C1 (fr) 1989-05-19 1989-05-19
DE3916266 1989-05-19
PCT/EP1990/000764 WO1990014166A1 (fr) 1989-05-19 1990-05-11 Centrifugeuse a filtre retourne

Publications (3)

Publication Number Publication Date
EP0472554A1 EP0472554A1 (fr) 1992-03-04
EP0472554B1 EP0472554B1 (fr) 1993-10-06
EP0472554B2 true EP0472554B2 (fr) 1997-12-17

Family

ID=6380933

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90906988A Expired - Lifetime EP0472554B2 (fr) 1989-05-19 1990-05-11 Centrifugeuse a filtre retourne

Country Status (8)

Country Link
US (1) US5169525A (fr)
EP (1) EP0472554B2 (fr)
JP (1) JP3174319B2 (fr)
KR (1) KR0139282B1 (fr)
DE (2) DE3916266C1 (fr)
ES (1) ES2044583T5 (fr)
RU (1) RU2038164C1 (fr)
WO (1) WO1990014166A1 (fr)

Families Citing this family (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5277804A (en) * 1990-03-24 1994-01-11 Heinkel Industriezentrifugen Gmbh & Co. Sleeve filter centrifuge
RU2096093C1 (ru) * 1990-09-24 1997-11-20 Хейнкель Индустрицентрифуген ГмбХ унд Ко. Фильтрующая центрифуга с выворачиваемым фильтром
US5421997A (en) * 1991-05-04 1995-06-06 Heinkel Industriezentrifugen Gmbh & Co. Kg Sleeve filter centrifuge
DE4230261A1 (de) * 1991-10-01 1993-04-08 Krauss Maffei Ag Diskontinuierlich arbeitende filterzentrifuge
DE4337618C1 (de) * 1993-11-04 1995-02-16 Krauss Maffei Ag Stülpfilterzentrifuge (Trommelraumabdichtung)
DE4342471C1 (de) * 1993-12-13 1995-05-04 Krauss Maffei Ag Filterzentrifuge
DE19525567A1 (de) * 1995-07-13 1997-01-16 Krauss Maffei Ag Stülpfilterzentrifuge
DE19705788C1 (de) * 1997-02-14 1998-07-30 Guenther Hultsch Diskontinuierlich arbeitende Filterzentrifuge
DE10115381A1 (de) * 2001-03-28 2002-10-24 Heinkel Ag Stülpfilterzentrifuge
US6649059B2 (en) * 2001-07-05 2003-11-18 Lancer Partnership, Ltd. Apparatus for treating fluids
DE10311997A1 (de) * 2003-03-19 2004-10-07 Johannes Gerteis Stülpfilterzentrifuge
WO2007140445A2 (fr) * 2006-05-31 2007-12-06 Filtration Dynamics, Inc. Dispositifs, systèmes et procédés de filtration centrifuges de fluide
US20080061008A1 (en) * 2006-09-12 2008-03-13 Kelsey Robert L Systems and methods for treating metalworking fluids
CA2678227A1 (fr) * 2007-02-13 2008-08-21 Vrtx Technologies, Llc Systemes et procedes pour le traitement des eaux usees
US7651621B2 (en) * 2007-04-18 2010-01-26 Vrtx Technologies, Llc Methods for degassing one or more fluids
US20080257411A1 (en) * 2007-04-18 2008-10-23 Kelsey Robert L Systems and methods for preparation of emulsions
US20080257828A1 (en) * 2007-04-18 2008-10-23 Kelsey Robert L Systems and methods for reduction of metal contaminants in fluids
US20090152212A1 (en) * 2007-04-18 2009-06-18 Kelsey Robert L Systems and methods for treatment of groundwater
DE102008024590B4 (de) * 2008-05-21 2017-06-01 Heraeus Deutschland GmbH & Co. KG Recycling-Verfahren für Katalysatorformkörper
JP5434193B2 (ja) * 2009-03-30 2014-03-05 三菱化学株式会社 静電荷像現像用トナーの製造方法及び遠心分離機
DE102011010072B4 (de) 2011-02-01 2013-08-22 Contecma C. S. Gmbh Stülpfilterzentrifuge
CA3085969A1 (fr) * 2017-12-19 2019-06-27 Xeros Limited Filtre pour appareil de traitement

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2710624C2 (de) * 1977-03-11 1985-09-19 Heinkel Industriezentrifugen GmbH + Co, 7120 Bietigheim-Bissingen Stülpfilterzentrifuge
DE3430507A1 (de) * 1984-08-18 1986-02-27 Heinkel Industriezentrifugen GmbH + Co, 7120 Bietigheim-Bissingen Filterzentrifuge
DE3740411C2 (de) * 1987-11-28 1996-11-14 Heinkel Ind Zentrifugen Stülpfilterzentrifuge
US5004540A (en) * 1989-12-01 1991-04-02 Ketema Process Equipment Division Invertible filter-type centrifuge with improved bearing and seal assembly

Also Published As

Publication number Publication date
KR0139282B1 (ko) 1998-04-27
DE3916266C1 (fr) 1990-08-30
ES2044583T5 (es) 1998-03-01
US5169525A (en) 1992-12-08
JPH04505275A (ja) 1992-09-17
DE59003028D1 (de) 1993-11-11
WO1990014166A1 (fr) 1990-11-29
KR920700775A (ko) 1992-08-10
EP0472554B1 (fr) 1993-10-06
RU2038164C1 (ru) 1995-06-27
ES2044583T3 (es) 1994-01-01
JP3174319B2 (ja) 2001-06-11
EP0472554A1 (fr) 1992-03-04

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