EP0861125A1 - Centrifuge with slide-in filter - Google Patents

Centrifuge with slide-in filter

Info

Publication number
EP0861125A1
EP0861125A1 EP96929269A EP96929269A EP0861125A1 EP 0861125 A1 EP0861125 A1 EP 0861125A1 EP 96929269 A EP96929269 A EP 96929269A EP 96929269 A EP96929269 A EP 96929269A EP 0861125 A1 EP0861125 A1 EP 0861125A1
Authority
EP
European Patent Office
Prior art keywords
housing
housing part
centrifugal drum
centrifuge
filter centrifuge
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
EP96929269A
Other languages
German (de)
French (fr)
Other versions
EP0861125B1 (en
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
Application filed by Heinkel Industriezentrifugen GmbH and Co filed Critical Heinkel Industriezentrifugen GmbH and Co
Publication of EP0861125A1 publication Critical patent/EP0861125A1/en
Application granted granted Critical
Publication of EP0861125B1 publication Critical patent/EP0861125B1/en
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
    • 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
    • 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

Definitions

  • the invention relates to an inverting filter centrifuge according to the preamble of claim 1.
  • Such an inverting filter centrifuge is known from DE 37 40 411 AI.
  • the first and second housing spaces are formed by immovable walls.
  • access to the centrifugal drum is made more difficult when cleaning is required, and the said housing spaces as such are also difficult to clean.
  • DE-PS 610 608 shows a centrifuge for separating liquids.
  • the lid and housing parts for opening or closing for cleaning can be separated or pivoted together in one direction. Lids and housing parts are only accessible to a limited extent during cleaning.
  • FIG. 1 schematically shows a broken sectional view of an inverting filter centrifuge with a closed centrifugal drum and an inserted filter cloth;
  • FIG. 2 shows the inverting filter centrifuge from FIG. 1 with the centrifugal drum open and the filter cloth turned out;
  • Fig. 3 is a schematic sectional view taken along line 3-3 in Fig. 1 and
  • FIG. 4 is a sectional view similar to FIG. 3 with the housing parts opened.
  • the inverting filter centrifuge shown in the drawing comprises a schematically indicated machine housing 1 which surrounds the drive part of the centrifuge (which is not visible on the right in the figures) and in which a hollow shaft 3 in bearings 4, 5 is rotatably supported on a stationary machine frame 2 is.
  • the hollow shaft 3 can be put into rapid circulation by means of a motor (not shown).
  • the hollow shaft 3 extends beyond a partition 6 which closes the machine housing 1 on its front side and has an axial axis (also not shown) running keyway in which a wedge piece 9 is axially displaceable.
  • This wedge piece 9 is rigidly connected to a shaft 12 displaceable inside the hollow shaft 3.
  • the shaft 12 therefore rotates together with the hollow shaft 3, but is axially displaceable in the latter.
  • a pot-shaped centrifugal drum 16 is flanged with its bottom 17 in a rotationally fixed manner.
  • the centrifugal drum 16 has radially extending passage openings 18 on its circular cylindrical side wall.
  • the centrifugal drum 16 is open on its end face opposite the bottom 17.
  • the edge of an essentially circular cylindrical filter cloth 22 is tightly clamped onto a flange-like opening edge 19 by means of a retaining ring 21.
  • the other edge of the filter cloth 22 is correspondingly tightly connected to a bottom piece 23 which is rigidly connected to the displaceable shaft 12 which freely penetrates the bottom 17.
  • a centrifugal chamber cover 25 is rigidly fastened to the base piece 23 by means of stud bolts 24, leaving a space free, which in FIG. 1 tightly closes the interior of the centrifugal drum 16 by resting on its opening edge 19 and in FIG. 2 together with the base piece 23 by axial Pushing the shaft 12 out of the hollow shaft 3 is lifted freely from the centrifugal drum 16.
  • the filter cloth 22 is turned inside out on the centrifugal drum 16
  • FIG. 2 the filter cloth 22 is turned inside out.
  • the first housing space 10 serves to discharge a filtrate which has penetrated the passage openings 18 of the centrifugal drum 16 and the filter cloth 22, and has an outlet opening 7 for this purpose.
  • a filter cake deposited on this cloth can be removed via an outlet opening 8 of the second housing space 11 after the filter cloth 22 has been turned inside out.
  • a rigid, optionally removable, filling tube 26 Arranged on the front of the inverting filter centrifuge (on the left in the drawing) is a rigid, optionally removable, filling tube 26 which serves to supply a suspension to be broken down into its solid and liquid components into the interior of the centrifugal drum 16 (FIG. 1 ) and penetrates in the example shown in Fig. 2 operating state in a bore 27 of the sliding shaft 12, it being possible for the displacement of the shaft 12 and thus the opening and closing of the centrifugal drum 16 via (not shown in the drawing also "right-most) Drive motors, for example hydraulically.
  • the inverting filter centrifuge assumes the position shown in FIG. 1.
  • the displaceable shaft 12 is retracted into the hollow shaft 3, as a result of which the bottom piece 23 connected to the shaft 12 lies near the bottom 17 of the centrifugal drum 16 and the filter cloth 22 is inserted into the drum in such a way that it covers the through openings 18 inside it .
  • the centrifuge chamber cover 25 has sealed onto the opening edge 19 of the centrifugal drum 16 hung up.
  • the liquid constituents of the suspension enter the first housing space 10 as a filtrate through the filter cloth 22 and the passage openings 18 and are passed there by a baffle plate 36 into a discharge line 37 connected to the outlet opening 7.
  • the solid particles of the suspension are retained in the form of a filter cake by the filter cloth 22.
  • the filling tube 26 has penetrated into the bore 27 of the shaft 12 through corresponding openings in the cover 25 or in the base piece 23.
  • the filter centrifuge is brought back into the operating position according to FIG. 1 by pushing back the shaft 12, the filter cloth 22 turning back in the opposite direction. In this way, the centrifuge can be operated with a continuously rotating centrifugal drum 16.
  • the housing space 10 is enclosed by an independent, inherently rigid, annular, for example approximately annular housing part 50 ("filtrate housing part”), one opening edge of which, with the interposition of a seal (not shown), bears against the partition 6 of the machine housing 1, during which formed by the end wall 14, other opening edge also with the interposition of a (not shown) seal adjacent to the outside of the opening edge 19 of the centrifugal drum 16.
  • the outlet opening 7 is formed, which in turn is connected to the discharge line 37 in a sealed manner with the interposition of seals (not shown).
  • the housing part 50 can be pivoted about a vertical axis 52, so that it can be transferred from an closed state, in which it surrounds the centrifugal drum 16, to an open state.
  • Fig. 4 shows the partially open state.
  • the housing part 50 can be pivoted further away from the centrifugal drum, so that it is accessible - completely unhindered by the housing part 50 - for example for the purpose of cleaning without obstruction.
  • the axis of rotation 52 is received in a hinge-like manner by projections 54, 56 which are attached to the housing part 50 or to the machine housing 1 (partition 6). are rigidly arranged.
  • the second housing space 11 adjoining it is enclosed by a rigid, pot-shaped, essentially cylindrical housing part 51 (“solid housing part”).
  • the housing part 51 has a closed end wall 59 with a passage opening for the filling tube 26 and one of the end wall opposite opening edge, which rests sealed on the first housing part 50.
  • the second housing part 51 can also be pivoted about a vertical axis 53 (FIGS. 3 and 4), which runs through projections 55, 57 on the housing part 51 or on the machine housing 1 (partition 6).
  • the housing part 51 can also be pivoted beyond the opening position shown in FIG. 4, so that completely unobstructed access to the centrifugal drum 16 and housing part 51 is made possible.
  • the housing part 51 has on its underside the outlet opening 8, which (in a manner not shown) is connected to the discharge line 40 in a sealed manner.
  • the transfer of the housing parts 50, 51 from the closed to the open state can take place when the centrifuge chamber cover 25 is closed, which is only lifted off the centrifugal drum 16 when the housing parts 50, 51 have been pivoted away accordingly. respectively.
  • the housing parts 50, 51 can also be dimensioned such that their transfer from the closed to the open state even when the centrifuge chamber cover is lifted off
  • the first housing part 50 is first brought into tight contact with the machine housing 1, whereupon the second housing part 51 is connected to the first housing part 50 in a sealed manner by pivoting (FIG. 1).
  • the filler tube which is designed to be removable for this purpose, becomes
  • the filler tube 26 can also be firmly connected to the second housing part 51 in such a way that when the housing part 51 is opened it detaches from its inlet opening on the centrifuge chamber cover 25 and is pivoted away together with the housing part 51.
  • a suspension feed line connected to the fill pipe 26 outside the housing part 51 must be removed from the fill pipe, or this feed line must be flexible.

Landscapes

  • Centrifugal Separators (AREA)

Abstract

A centrifuge with a slide-in filter comprises a centrifuge basket, a filter cloth element which can be pushed into or out of it, and a machine housing, to which a first housing chamber with an outlet for discharging a filtrate and a second housing chamber with an outlet for discharging a filter cake are connected in the region of the centrifuge basket. The first housing chamber is sealingly enclosed by a first separate housing section and the second housing chamber is likewise sealingly enclosed by a second separate housing section. The two housing sections are mounted so that each is able to pivot in different directions around separate axes in such a way that they are pivotable individually between a closed state and an open state relative to the centrifuge basket.

Description

B E S C H R E I B U N G DESCRIPTION
Stülpfilter ZentrifugeInverting filter centrifuge
Die Erfindung betrifft eine Stülpfilterzentrifuge nach dem Oberbegriff des Anspruchs 1.The invention relates to an inverting filter centrifuge according to the preamble of claim 1.
Eine derartige Stülpfilterzentrifuge ist aus DE 37 40 411 AI bekannt. Bei der bekannten Stülpfilterzentrifuge werden der erste und zweite Gehäuseraum von unbeweglichen Wänden gebil¬ det. Hierdurch ist bei erforderlich werdenden Reinigungen der Zugang zur Schleudertrommel erschwert und auch die besagten Gehäuseräume als solche sind nur in umständlicher Weise zu reinigen.Such an inverting filter centrifuge is known from DE 37 40 411 AI. In the known inverting filter centrifuge, the first and second housing spaces are formed by immovable walls. As a result, access to the centrifugal drum is made more difficult when cleaning is required, and the said housing spaces as such are also difficult to clean.
Die DE-PS 610 608 zeigt eine Zentrifuge zum Trennen von Flüssigkeiten. Bei dieser Zentrifuge können Deckel und Ge¬ häuseteile zum Öffnen bzw. Schließen für die Reinigung ge¬ trennt oder zusammen in eine Richtung verschwenkt werden. Deckel und Gehäuseteile sind bei der Reinigung nur bedingt zugänglich.DE-PS 610 608 shows a centrifuge for separating liquids. In this centrifuge, the lid and housing parts for opening or closing for cleaning can be separated or pivoted together in one direction. Lids and housing parts are only accessible to a limited extent during cleaning.
Es ist Aufgabe der Erfindung, eine gattungsgemäße Stülp¬ filterzentrifuge so weiterzubilden, daß die Schleudertrommel, z.B. zu Reinigungszwecken, im wesentlichen von allen Seiten her leicht zugänglich gemacht werden kann und auch die Ge¬ häuseräume, welche die Schleudertrommel umgeben, einfach zu reinigen sind.It is an object of the invention to develop a generic inverting filter centrifuge such that the centrifugal drum, e.g. for cleaning purposes, can be made easily accessible essentially from all sides and also the housings which surround the centrifugal drum are easy to clean.
Die Aufgabe wird bei der gattungsgemäßen Stülpfilterzentri- fuge durch die kennzeichnenden Merkmale des Anspruchs 1 ge¬ löst.The task is performed with the generic inverting filter centric fuge solved by the characterizing features of claim 1.
Ein Ausführungsbeispiel der Erfindung ist in der Zeichnung dargestellt und wird nachstehend näher erläutert. Es zeigen:An embodiment of the invention is shown in the drawing and is explained in more detail below. Show it:
Fig. 1 schematisch eine abgebrochene Schnittdar¬ stellung einer Stülpfilterzentrifuge mit ge¬ schlossener Schleudertrommel und eingestülp¬ tem Filtertuch;1 schematically shows a broken sectional view of an inverting filter centrifuge with a closed centrifugal drum and an inserted filter cloth;
Fig. 2 die Stülpfilterzentrifuge aus Fig. 1 mit geöffneter Schleudertrommel und ausgestülp¬ tem Filtertuch;FIG. 2 shows the inverting filter centrifuge from FIG. 1 with the centrifugal drum open and the filter cloth turned out;
Fig. 3 eine schematische Schnittansicht entlang der Linie 3-3 in Fig. 1 undFig. 3 is a schematic sectional view taken along line 3-3 in Fig. 1 and
Fig. 4 eine Schnittansicht ähnlich Fig. 3 mit geöff¬ neten Gehäuseteilen.FIG. 4 is a sectional view similar to FIG. 3 with the housing parts opened.
Die auf der Zeichnung dargestellte Stülpfilterzentrifuge um¬ faßt ein schematisch angedeutetes, den (in den Figuren je¬ weils rechts gelegenen nicht sichtbaren) Antriebsteil der Zentrifuge umschließendes Maschinengehäuse 1, in dem auf einem stationären Maschinengestell 2 eine Hohlwelle 3 in Lagern 4, 5 drehbar abgestützt ist. Die Hohlwelle 3 kann über einen (nicht dargestellten) Motor in raschen Umlauf versetzt werden. Die Hohlwelle 3 erstreckt sich über eine das Maschi¬ nengehäuse 1 an dessen Vorderseite abschließende Trennwand 6 hinaus und weist eine (ebenfalls nicht dargestellte) axial verlaufende Keilnut auf, in welcher ein Keilstück 9 axial verschieblich iεt. Dieses Keilstück 9 ist starr mit einer im Innern der Hohlwelle 3 verschiebbaren Welle 12 verbunden. Die Welle 12 läuft daher gemeinsam mit der Hohlwelle 3 um, ist jedoch in dieser axial verschieblich.The inverting filter centrifuge shown in the drawing comprises a schematically indicated machine housing 1 which surrounds the drive part of the centrifuge (which is not visible on the right in the figures) and in which a hollow shaft 3 in bearings 4, 5 is rotatably supported on a stationary machine frame 2 is. The hollow shaft 3 can be put into rapid circulation by means of a motor (not shown). The hollow shaft 3 extends beyond a partition 6 which closes the machine housing 1 on its front side and has an axial axis (also not shown) running keyway in which a wedge piece 9 is axially displaceable. This wedge piece 9 is rigidly connected to a shaft 12 displaceable inside the hollow shaft 3. The shaft 12 therefore rotates together with the hollow shaft 3, but is axially displaceable in the latter.
An dem über die Trennwand 6 hinausragenden Ende der Hohlwelle 3 ist eine topfförmige Schleudertrommel 16 mit ihrem Boden 17 drehfest angeflanscht. An ihrer kreiszylindrischen Seitenwand weist die Schleudertrommel 16 radial verlaufende Durchlaßöff¬ nungen 18 auf. An ihrer dem Boden 17 gegenüberliegenden Stirnseite ist die Schleudertrommel 16 offen. An einem flanschartigen Öffnungsrand 19 ist mittels eines Halteringes 21 der eine Rand eines im wesentlichen kreiszylindrisch aus¬ gebildeten Filtertuchs 22 dicht eingespannt. Der andere Rand des Filtertuchs 22 ist in entsprechender Weise dicht mit einem Bodenstück 23 verbunden, welches starr mit der ver¬ schiebbaren, den Boden 17 frei durchdringenden Welle 12 ver¬ bunden ist.At the end of the hollow shaft 3 protruding beyond the partition 6, a pot-shaped centrifugal drum 16 is flanged with its bottom 17 in a rotationally fixed manner. The centrifugal drum 16 has radially extending passage openings 18 on its circular cylindrical side wall. The centrifugal drum 16 is open on its end face opposite the bottom 17. The edge of an essentially circular cylindrical filter cloth 22 is tightly clamped onto a flange-like opening edge 19 by means of a retaining ring 21. The other edge of the filter cloth 22 is correspondingly tightly connected to a bottom piece 23 which is rigidly connected to the displaceable shaft 12 which freely penetrates the bottom 17.
An dem Bodenstück 23 ist über Stehbolzen 24 unter Freilassung eines Zwischenraums starr ein Schleuderraumdeckel 25 be¬ festigt, der in Fig. 1 den Innenraum der Schleudertrommel 16 durch Auflage an deren Öffnungsrand 19 dicht verschließt und in Fig. 2 gemeinsam mit dem Bodenstück 23 durch axiales Her¬ ausschieben der Welle 12 aus der Hohlwelle 3 frei von der Schleudertrommel 16 abgehoben ist. In Fig. 1 ist das Filter¬ tuch 22 zur Innenseite der Schleudertrommel 16 eingestülpt, in Fig. 2 ist das Filtertuch 22 nach außen umgestülpt.A centrifugal chamber cover 25 is rigidly fastened to the base piece 23 by means of stud bolts 24, leaving a space free, which in FIG. 1 tightly closes the interior of the centrifugal drum 16 by resting on its opening edge 19 and in FIG. 2 together with the base piece 23 by axial Pushing the shaft 12 out of the hollow shaft 3 is lifted freely from the centrifugal drum 16. In FIG. 1 the filter cloth 22 is turned inside out on the centrifugal drum 16, in FIG. 2 the filter cloth 22 is turned inside out.
An das Maschinengehäuse 1 schließen im Bereich der Schleuder- trommel 16 zwei Gehäuseräume 10 und 11 an, die in der Nähe des Öffnungsrandes 19 der Schleudertrommel 16 durch eine ringförmige Stirnwand 14 voneinander abgetrennt sind. Der erste Gehäuseraum 10 dient der Abführung eines Filtrats, welches die Durchlaßöffnungen 18 der Schleudertrommel 16 und das Filtertuch 22 durchdrungen hat, und weist zu diesem Zwecke eine Auslaßöffnung 7 auf. Über eine Auslaßöffnung 8 des zweiten Gehäuseraums 11 kann nach Umstülpung des Filter¬ tuches 22 ein auf diesem Tuch abgelagerter Filterkuchen abgeführt werden.Connect to the machine housing 1 in the area of the centrifugal drum 16 two housing spaces 10 and 11, which are separated from one another by an annular end wall 14 near the opening edge 19 of the centrifugal drum 16. The first housing space 10 serves to discharge a filtrate which has penetrated the passage openings 18 of the centrifugal drum 16 and the filter cloth 22, and has an outlet opening 7 for this purpose. A filter cake deposited on this cloth can be removed via an outlet opening 8 of the second housing space 11 after the filter cloth 22 has been turned inside out.
An der (auf der Zeichnung links gelegenen) Vorderseite der Stülpfilterzentrifuge ist ein starres, gegebenenfalls ab¬ nehmbares Füllrohr 26 angeordnet, welches zum Zuführen einer in ihre Feststoff- und Flüssigkeitsbestandteile zu zerlegen¬ den Suspension in den Innenraum der Schleudertrommel 16 dient (Fig. 1) und in dem in Fig. 2 dargestellten Betriebszustand in eine Bohrung 27 der verschiebbaren Welle 12 eindringt, wo¬ bei die Verschiebung der Welle 12 und damit das Öffnen und Schließen der Schleudertrommel 16 über (nicht dargestellte, auf der Zeichnung ebenfalls" rechts gelegene) Antriebsmotoren, z.B. hydraulisch, erfolgt.Arranged on the front of the inverting filter centrifuge (on the left in the drawing) is a rigid, optionally removable, filling tube 26 which serves to supply a suspension to be broken down into its solid and liquid components into the interior of the centrifugal drum 16 (FIG. 1 ) and penetrates in the example shown in Fig. 2 operating state in a bore 27 of the sliding shaft 12, it being possible for the displacement of the shaft 12 and thus the opening and closing of the centrifugal drum 16 via (not shown in the drawing also "right-most) Drive motors, for example hydraulically.
Im Schleuderbetrieb nimmt die Stülpfilterzentrifuge die in Fig. 1 gezeichnete Stellung ein. Die verschiebbare Welle 12 ist in die Hohlwelle 3 zurückgezogen, wodurch das mit der Welle 12 verbundene Bodenstück 23 in der Nähe des Bodens 17 der Schleudertrommel 16 liegt und das Filtertuch 22 derart in die Trommel eingestülpt ist, daß es in deren Innerem die Durchlaßöffnungen 18 überdeckt. Der Schleuderraumdeckel 25 hat sich dabei dicht auf den Öffnungsrand 19 der Schleuder- trommel 16 aufgelegt. Bei rotierender Schleudertrommel 16 wird über das Füllrohr 26 kontinuierlich zu filtrierende Suspension eingeführt. Die flüssigen Bestandteile der Suspension treten als Filtrat durch das Filtertuch 22 und die Durchlaßöffnungen 18 hindurch in den ersten Gehäuseraum 10 ein und werden dort von einem Prallblech 36 in eine mit der Auslaßöffnung 7 verbundene Abführleitung 37 geleitet. Die Feststoffteilchen der Suspension werden in Form eines Filter¬ kuchens vom Filtertuch 22 zurückgehalten.In centrifugal operation, the inverting filter centrifuge assumes the position shown in FIG. 1. The displaceable shaft 12 is retracted into the hollow shaft 3, as a result of which the bottom piece 23 connected to the shaft 12 lies near the bottom 17 of the centrifugal drum 16 and the filter cloth 22 is inserted into the drum in such a way that it covers the through openings 18 inside it . The centrifuge chamber cover 25 has sealed onto the opening edge 19 of the centrifugal drum 16 hung up. When the centrifugal drum 16 is rotating, the suspension to be filtered is introduced through the filling tube 26. The liquid constituents of the suspension enter the first housing space 10 as a filtrate through the filter cloth 22 and the passage openings 18 and are passed there by a baffle plate 36 into a discharge line 37 connected to the outlet opening 7. The solid particles of the suspension are retained in the form of a filter cake by the filter cloth 22.
Bei weiterhin - gewöhnlich langsamer - rotierender Schleuder¬ trommel 16 und nach Abschaltung der Suspensionszufuhr über das Füllrohr 26 wird nun entsprechend Fig. 2 die Welle 12 (nach links) verschoben, wodurch sich das Filtertuch 22 nach außen umstülpt und die an ihm haftenden Feststoffteilchen des Filterkuchens nach auswärts in Richtung des Pfeiles 38 in den zweiten Gehäuseraum 11 abgeschleudert werden. Die Auslaßoff- öffnung 8 dieses Gehäuseraumes 11 ist mit einer Abführleitung 40 verbunden, über welche die Bestandteile des Filterkuchens abgefördert werden können.With the centrifuge drum 16 still rotating, usually more slowly, and after the suspension supply via the filling tube 26 has been switched off, the shaft 12 is now shifted (to the left) according to FIG Filter cake are thrown outwards in the direction of arrow 38 into the second housing space 11. The outlet opening 8 of this housing space 11 is connected to a discharge line 40, via which the components of the filter cake can be removed.
In der Stellung nach Fig. 2 ist das Füllrohr 26 durch ent¬ sprechende Öffnungen im Deckel 25 bzw. im Bodenstück 23 in die Bohrung 27 der Welle 12 eingedrungen. Nach beendetem Ab¬ wurf der den Filterkuchen bildenden Feststoffteilchen unter dem Einfluß der Zentrifugalkraft wird die Filterzentrifuge durch Zurückschieben der Welle 12 wieder in die Betriebsstel¬ lung gemäß Fig. 1 gebracht, wobei sich das Filtertuch 22 in entgegengesetzter Richtung zurückstülpt. Auf diese Weise ist ein Betrieb der Zentrifuge mit ständig rotierender Schleuder¬ trommel 16 möglich. Der Gehäuseraum 10 ist von einem selbständigen, in sich starren, ringförmigen, beispielsweise etwa kreisringförmigen Gehäuseteil 50 ( "Filtratgehäuseteil" ) umschlossen, dessen einer Öffnungsrand unter Zwischenschaltung einer (nicht dar¬ gestellten) Dichtung an der Trennwand 6 des Maschinengehäuses 1 anliegt, während der von der Stirnwand 14 gebildete, andere Öffnungsrand ebenfalls unter Zwischenschaltung einer (nicht dargestellten) Dichtung an die Außenseite des Öffnungsrandes 19 der Schleudertrommel 16 angrenzt. An der Unterseite des ersten Gehäuseteils 50 ist die Auslaßoffnung 7 ausgebildet, die wiederum unter Zwischenschaltung von (nicht dargestell¬ ten) Dichtungen abgedichtet mit der Abführleitung 37 in Ver¬ bindung steht. Wie aus Fig. 3 und 4 ersichtlich, ist das Ge¬ häuseteil 50 um eine vertikale Achse 52 schwenkbar, so daß es aus einem geschlossenen Zustand, in welchem es die Schleuder¬ trommel 16 umschließt, in einen geöffneten Zustand überführt werden kann. Fig. 4 zeigt den teilweise geöffneten Zustand. Das Gehäuseteil 50 kann noch weiter von der Schleudertrommel weggeschwenkt werden, so daß diese - von dem Gehäuseteil 50 völlig unbehindert - beispielsweise zum Zwecke einer Reini¬ gung ohne Behinderung zugänglich ist. Dasselbe gilt natürlich auch für das Gehäuseteil 50 selbst. Wie in Fig. 3 und 4 dar¬ gestellt, wird die Drehachse 52 von Vorsprüngen 54, 56 schar¬ nierähnlich aufgenommen, die am Gehäuseteil 50 bzw. am Ma¬ schinengehäuse 1 (Trennwand 6) starr angeordnet sind.In the position according to FIG. 2, the filling tube 26 has penetrated into the bore 27 of the shaft 12 through corresponding openings in the cover 25 or in the base piece 23. After the dropping of the solid particles forming the filter cake under the influence of the centrifugal force, the filter centrifuge is brought back into the operating position according to FIG. 1 by pushing back the shaft 12, the filter cloth 22 turning back in the opposite direction. In this way, the centrifuge can be operated with a continuously rotating centrifugal drum 16. The housing space 10 is enclosed by an independent, inherently rigid, annular, for example approximately annular housing part 50 ("filtrate housing part"), one opening edge of which, with the interposition of a seal (not shown), bears against the partition 6 of the machine housing 1, during which formed by the end wall 14, other opening edge also with the interposition of a (not shown) seal adjacent to the outside of the opening edge 19 of the centrifugal drum 16. On the underside of the first housing part 50, the outlet opening 7 is formed, which in turn is connected to the discharge line 37 in a sealed manner with the interposition of seals (not shown). 3 and 4, the housing part 50 can be pivoted about a vertical axis 52, so that it can be transferred from an closed state, in which it surrounds the centrifugal drum 16, to an open state. Fig. 4 shows the partially open state. The housing part 50 can be pivoted further away from the centrifugal drum, so that it is accessible - completely unhindered by the housing part 50 - for example for the purpose of cleaning without obstruction. The same naturally also applies to the housing part 50 itself. As shown in FIGS. 3 and 4, the axis of rotation 52 is received in a hinge-like manner by projections 54, 56 which are attached to the housing part 50 or to the machine housing 1 (partition 6). are rigidly arranged.
Ebenso wie der erste Gehäuseraum 10 ist auch der sich an ihn anschließende zweite Gehäuseraum 11 von einem in sich starren, topfformigen, im wesentlichen zylindrischen Gehäuse¬ teil 51 ( "Feststoffgehäuseteil" ) umschlossen. Das Gehäuseteil 51 weist eine geschlossene Stirnwand 59 mit Durchtritts¬ öffnung für das Füllrohr 26 auf sowie einen der Stirnwand gegenüberliegenden Öffnungsrand, der abgedichtet am ersten Gehäuseteil 50 anliegt. Ebenso wie das erste Gehäuseteil 50 ist auch das zweite Gehäuseteil 51 um eine vertikale Achse 53 (Fig. 3 und 4) schwenkbar, die durch Vorsprünge 55, 57 am Ge¬ häuseteil 51 bzw. am Maschinengehäuse 1(Trennwand 6) ver¬ läuft. Auch das Gehäuseteil 51 kann über die in Fig. 4 darge¬ stellte Öffnungsstellung hinaus weiterverschwenkt werden, so daß ein völlig unbehinderter Zugang zu Schleudertrommel 16 und Gehäuseteil 51 ermöglicht ist. Das Gehäuseteil 51 weist an seiner Unterseite die Auslaßöffnung 8 auf, die (in nicht dargestellter Weise) abgedichtet mit der Abführleitung 40 verbunden ist.Just like the first housing space 10, the second housing space 11 adjoining it is enclosed by a rigid, pot-shaped, essentially cylindrical housing part 51 (“solid housing part”). The housing part 51 has a closed end wall 59 with a passage opening for the filling tube 26 and one of the end wall opposite opening edge, which rests sealed on the first housing part 50. Like the first housing part 50, the second housing part 51 can also be pivoted about a vertical axis 53 (FIGS. 3 and 4), which runs through projections 55, 57 on the housing part 51 or on the machine housing 1 (partition 6). The housing part 51 can also be pivoted beyond the opening position shown in FIG. 4, so that completely unobstructed access to the centrifugal drum 16 and housing part 51 is made possible. The housing part 51 has on its underside the outlet opening 8, which (in a manner not shown) is connected to the discharge line 40 in a sealed manner.
Es ist auch möglich, lediglich das zweite Gehäuseteil 51 in den geöffneten Zustand zu verbringen, das erste Gehäuseteil 50 aber im geschlossenen Zustand zu belassen. In diesem Fall ist beispielsweise eine Reinigung des Gehäuseteils 51 (von Feststoff) möglich oder es können das Filtertuch 22 und/oder die Dichtungen an der Schleudertrommel 16 gewechselt werden.It is also possible to only place the second housing part 51 in the open state, but to leave the first housing part 50 in the closed state. In this case, cleaning of the housing part 51 (from solid matter) is possible, for example, or the filter cloth 22 and / or the seals on the centrifugal drum 16 can be replaced.
Die Abdichtung der Auslaßoffnungen 7, 8 an den Gehäuseteilen 50 bzw. 51 erfolgt so, daß die Verschwenkung der Gehäuseteile 50, 51 nicht behindert wird, beispielsweise durch gleitfähige Dichtungen.The sealing of the outlet openings 7, 8 on the housing parts 50 and 51 takes place in such a way that the pivoting of the housing parts 50, 51 is not hindered, for example by sliding seals.
Die Überführung der Gehäuseteile 50, 51 aus dem geschlossenen in den geöffneten Zustand (Fig. 4) kann bei geschlossenem Schleuderraumdeckel 25, der erst dann von der Schleuder¬ trommel 16 abgehoben wird, wenn die Gehäuseteile 50, 51 ent¬ sprechend weit abgeschwenkt sind, erfolgen. Grundsätzlich können die Gehäuseteile 50, 51 jedoch auch so bemessen werden, daß ihre Überführung aus dem geschlossenen in den geöffneten Zustand auch bei abgehobenem SchleuderraumdeckelThe transfer of the housing parts 50, 51 from the closed to the open state (FIG. 4) can take place when the centrifuge chamber cover 25 is closed, which is only lifted off the centrifugal drum 16 when the housing parts 50, 51 have been pivoted away accordingly. respectively. Basically, however, the housing parts 50, 51 can also be dimensioned such that their transfer from the closed to the open state even when the centrifuge chamber cover is lifted off
25 möglich ist.25 is possible.
Bei der dargestellten Ausbildung der Gehäuseteile 50, 51 wird zuerst das zweite Gehäuseteil 51 und danach das erste Ge¬ häuseteil 50 aus dem geschlossenen in den geöffenten Zustand überführt. Umgekehrt wird zunächst das erste Gehäuseteil 50 in dichte Anlage an das Maschinengehäuse 1 gebracht, worauf das zweite Gehäuseteil 51 durch Verschwenken abgedichtet mit dem ersten Gehäuseteil 50 verbunden wird (Fig. 1). Vor einer Verschwenkung des zweiten Gehäuseteils 51 in Öffnungsstel¬ lung wird das zu diesem Zweck abnehmbar ausgebildete FüllrohrIn the illustrated embodiment of the housing parts 50, 51, first the second housing part 51 and then the first housing part 50 is transferred from the closed to the open state. Conversely, the first housing part 50 is first brought into tight contact with the machine housing 1, whereupon the second housing part 51 is connected to the first housing part 50 in a sealed manner by pivoting (FIG. 1). Before the second housing part 51 is pivoted into the open position, the filler tube, which is designed to be removable for this purpose, becomes
26 entfernt.26 removed.
Das Füllrohr 26 kann auch fest mit dem zweiten Gehäuseteil 51 verbunden sein, und zwar derart, daß es sich beim Öffnen des Gehäuseteils 51 aus seiner Eintrittsöffnung am Schleuderraum¬ deckel 25 ablöst und zusammen mit dem Gehäuseteil 51 wegver- schwenkt wird. In diesem Fall muß eine mit dem Füllrohr 26 außerhalb des Gehäuseteils 51 verbundene Suspensions-Zuführ- leitung vom Füllrohr abgenommen werden, oder diese Zuführlei¬ tung muß flexibel ausgebildet sein. The filler tube 26 can also be firmly connected to the second housing part 51 in such a way that when the housing part 51 is opened it detaches from its inlet opening on the centrifuge chamber cover 25 and is pivoted away together with the housing part 51. In this case, a suspension feed line connected to the fill pipe 26 outside the housing part 51 must be removed from the fill pipe, or this feed line must be flexible.

Claims

P A T E N T A N S P R Ü C H EP A T E N T A N S P R Ü C H E
Stülpfilterzentrifuge mit einer Schleudertrommel, mit einem in die Schleudertrommel ein- bzw. aus ihr herau- stülpbaren Filtertuch und mit einem Maschinengehäuse, an das im Bereich der Schleudertrommel ein erster Ge¬ häuseraum mit einem Auslaß zum Abführen eines Filtrates und ein zweiter Gehäuseraum mit einem Auslaß zum Abfüh¬ ren eines Filterkuchens anschließen, wobei der erste Gehäuseraum abgedichtet von einem ersten selbständigen Gehäuseteil und der zweite Gehäuseraum abgedichtet von einem zweiten selbständigen Gehäuseteil umschlossen sind, dadurch gekennzeichnet, daß die beiden Gehäuseteile (50, 51) jeweils für sich in verschiedene Richtungen um separate Achsen (52, 53) derart schwenkbar gelagert sind, daß sie einzeln zwischen einem geschlossenen Zustand (Fig. 1, 3) und einem geöffneten Zustand (Fig. 4) relativ zur Schleu¬ dertrommel (16) verschwenkbar sind.Inverting filter centrifuge with a centrifugal drum, with a filter cloth that can be put into or out of the centrifugal drum and with a machine housing, to which a first housing space with an outlet for discharging a filtrate and a second housing space with an outlet in the region of the centrifugal drum Connect for removal of a filter cake, the first housing space being sealed by a first independent housing part and the second housing space being sealed by a second independent housing part, characterized in that the two housing parts (50, 51) each separate in different directions separate axes (52, 53) are pivotally mounted such that they can be pivoted individually between a closed state (FIGS. 1, 3) and an open state (FIG. 4) relative to the centrifugal drum (16).
Stülpfilterzentrifuge nach Anspruch 1, dadurch gekenn¬ zeichnet, daß die beiden Gehäuseteile (50, 51) um ver¬ tikale Achsen (52, 53) schwenkbar sind.Inverting filter centrifuge according to claim 1, characterized in that the two housing parts (50, 51) can be pivoted about vertical axes (52, 53).
Stülpfilterzentrifuge nach Anspruch 1, dadurch gekenn¬ zeichnet, daß das erste Gehäuseteil (50) allgemein ring¬ förmig und das zweite Gehäuseteil ( 51 ) etwa topfförmig mit einer im wesentlichen geschlossenen Stirnwand (59) ausgebildet sind, und daß das zweite Gehäuseteil (51) im geschlossenen Zustand mit einem der Stirnwand ( 59 ) gegenüberliegendem Rand am ersten Gehäuseteil (50) dicht anliegt.Inverting filter centrifuge according to claim 1, characterized in that the first housing part (50) is generally ring-shaped and the second housing part (51) is approximately cup-shaped with an essentially closed end wall (59), and in that the second housing part (51) in the closed state with an edge opposite the end wall (59) on the first housing part (50).
4. Stülpfilterzentrifuge nach Anspruch 1, dadurch gekenn¬ zeichnet, daß das erste Gehäuseteil (50) im geschlosse¬ nen Zustand an einer Trennwand ( 6 ) des Maschinengehäu- ses (1) dicht anliegt.4. Inverting filter centrifuge according to claim 1, characterized gekenn¬ characterized in that the first housing part (50) in the closed condition on a partition (6) of the machine housing (1) lies tightly.
5. Stülpfilterzentrifuge nach Anspruch 1, dadurch gekenn¬ zeichnet, daß das erste und zweite Gehäuseteil (50, 51) Auslaßöffnungen (7, 8) aufweisen, die in geschlossenem Zustand der Gehäuseteile (50, 51) mit Abführleitungen (37, 40) für den ersten und zweiten Gehäuseraum (10, 11) dicht verbunden sind.5. Inverting filter centrifuge according to claim 1, characterized gekenn¬ characterized in that the first and second housing parts (50, 51) have outlet openings (7, 8) which in the closed state of the housing parts (50, 51) with discharge lines (37, 40) for the first and second housing space (10, 11) are tightly connected.
6. Stülpfilterzentrifuge nach Anspruch 1, dadurch gekenn¬ zeichnet, daß die Gehäuseteile (50, 51) im wesentlichen eine kreiszylindrische Außenkontur haben. 6. Inverting filter centrifuge according to claim 1, characterized gekenn¬ characterized in that the housing parts (50, 51) have a substantially circular cylindrical outer contour.
EP96929269A 1995-11-16 1996-08-17 Centrifuge with slide-in filter Expired - Lifetime EP0861125B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19542763 1995-11-16
DE19542763A DE19542763C1 (en) 1995-11-16 1995-11-16 Centrifuge used for cleaning fluids
PCT/EP1996/003627 WO1997018040A1 (en) 1995-11-16 1996-08-17 Centrifuge with slide-in filter

Publications (2)

Publication Number Publication Date
EP0861125A1 true EP0861125A1 (en) 1998-09-02
EP0861125B1 EP0861125B1 (en) 1999-12-22

Family

ID=7777645

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96929269A Expired - Lifetime EP0861125B1 (en) 1995-11-16 1996-08-17 Centrifuge with slide-in filter

Country Status (8)

Country Link
US (1) US6033563A (en)
EP (1) EP0861125B1 (en)
JP (1) JP2000500064A (en)
CN (1) CN1096888C (en)
AT (1) ATE187902T1 (en)
DE (1) DE19542763C1 (en)
ES (1) ES2140125T3 (en)
WO (1) WO1997018040A1 (en)

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Publication number Priority date Publication date Assignee Title
DE69929091T2 (en) * 1999-06-02 2006-07-13 Toyo Kasei Kogyo Co., Ltd. CUTTING SPIN
DE10115381A1 (en) * 2001-03-28 2002-10-24 Heinkel Ag inverting filter centrifuge
DE10245013A1 (en) * 2002-09-20 2004-04-01 Heinkel Aktiengesellschaft Filter centrifuge, used in solid/liquid separation processes, comprises housing, outer drum connected to housing, filter unit fixed in drum, and drive shaft fixed to outer drum and filter unit
AU2018390481A1 (en) * 2017-12-19 2020-07-09 Xeros Limited Filter for a treatment apparatus

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Publication number Priority date Publication date Assignee Title
DE610608C (en) * 1935-03-13 Bergedorfer Eisenwerk Akt Ges Standing centrifugal machine
DE3740411C2 (en) * 1987-11-28 1996-11-14 Heinkel Ind Zentrifugen Inverting filter centrifuge

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Title
See references of WO9718040A1 *

Also Published As

Publication number Publication date
ES2140125T3 (en) 2000-02-16
EP0861125B1 (en) 1999-12-22
CN1202120A (en) 1998-12-16
WO1997018040A1 (en) 1997-05-22
ATE187902T1 (en) 2000-01-15
DE19542763C1 (en) 1996-10-31
CN1096888C (en) 2002-12-25
JP2000500064A (en) 2000-01-11
US6033563A (en) 2000-03-07

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