DE3414879C2 - - Google Patents
Info
- Publication number
- DE3414879C2 DE3414879C2 DE19843414879 DE3414879A DE3414879C2 DE 3414879 C2 DE3414879 C2 DE 3414879C2 DE 19843414879 DE19843414879 DE 19843414879 DE 3414879 A DE3414879 A DE 3414879A DE 3414879 C2 DE3414879 C2 DE 3414879C2
- Authority
- DE
- Germany
- Prior art keywords
- filter
- pressing
- guide strips
- pressed
- pressing area
- 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
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D33/00—Filters with filtering elements which move during the filtering operation
- B01D33/04—Filters with filtering elements which move during the filtering operation with filtering bands or the like supported on cylinders which are impervious for filtering
- B01D33/042—Filters with filtering elements which move during the filtering operation with filtering bands or the like supported on cylinders which are impervious for filtering whereby the filtration and squeezing-out take place between at least two filtering bands
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Apparatuses For Bulk Treatment Of Fruits And Vegetables And Apparatuses For Preparing Feeds (AREA)
- Distillation Of Fermentation Liquor, Processing Of Alcohols, Vinegar And Beer (AREA)
- Filtration Of Liquid (AREA)
Description
Die Erfindung betrifft eine Vorrichtung zur Entwässerung von Suspen sionen nach dem Oberbegriff des Patentanspruches 1.The invention relates to a device for dewatering suspensions sions according to the preamble of claim 1.
Eine derartige Vorrichtung ist durch die Bandfilterpresse gemäß der DE-OS 23 41 360 bekannt. Derartige Bandfilterpressen werden u. a. zur Saftgewinnung aus Früchten eingesetzt.Such a device is by the belt filter press according to the DE-OS 23 41 360 known. Such band filter presses are u. a. used for juice extraction from fruits.
Diese Bandfilterpressen können jedoch nicht bei allen Suspensionen mit Erfolg angewendet werden. Insbesondere dann, wenn dem Filter jegliches innere Gefüge in Form einer Zellstruktur oder ähnlichem abgeht, wenn es sich also um eine praktisch homogene Masse handelt, die keiner wesentlichen inneren Bindung unterworfen ist. Wenn zum Beispiel aus Weinhefe Weinrückstände gewonnen werden sollen, besteht das Problem, daß das Filtergut am Beginn der Preßzone noch keinen formstabilen Filterkuchen bildet. Es quillt daher seitlich aus den Preßbändern heraus und ist für den Preßvorgang verloren. Dieses Problem hat dazu geführt, daß zum großen Teil andere Typen von Pressen in der Getränkeindustrie eingesetzt werden.However, these belt filter presses cannot work with all suspensions applied with success. Especially when the filter any internal structure in the form of a cell structure or the like comes off, if it is a practically homogeneous mass, which is not subject to any essential internal bond. If at Example from wine yeast wine residues are to be obtained the problem that the filter material does not yet exist at the beginning of the press zone dimensionally stable filter cake forms. It therefore swells out of the side Press bands out and is lost for the pressing process. This Problem has resulted in other types of Presses are used in the beverage industry.
Aufgabe der Erfindung ist es, die eingangs genannte Vorrichtung so zu verbessern, daß auch das beschriebene problematische Filter gut ohne Verluste durch seitliches Herausquellen aus den Filter bändern einwandfrei mit hohem Trocknungsgrad verarbeitet werden kann.The object of the invention is the above-mentioned device to improve so that the problematic filter described good without losses due to lateral swelling out of the filter tapes are processed perfectly with a high degree of dryness can.
Diese Aufgabe wird durch die kennzeichnenden Merkmale des Patent anspruchs 1 gelöst. This object is achieved through the characteristic features of the patent claim 1 solved.
Die Erfindung weist insbesondere den Vorteil auf, daß das Preßgut in der Vorrichtung zumindest so lange "festgehalten" wird, bis es soweit entwässert ist, daß es ein ausreichend mechanisch stabiles Gebilde ist, das dann in der Preßzone ohne weitere Einschränkungen oder Vorkehrungen in bekannter Weise einem kontinuierlich ansteigen den Preßdruck ausgesetzt werden kann.The invention has the particular advantage that the material to be pressed is "held" in the device at least until it to the extent that it is sufficiently mechanically stable The structure is then in the press zone without further restrictions or precautions in a known manner continuously increase the pressure can be exposed.
Der Unteranspruch bezeichnet eine vorteilhafte Ausgestaltung der erfindungsgemäßen Vorrichtung.The sub-claim designates an advantageous embodiment the device according to the invention.
Eine Ausführungsform der erfindungsgemäßen Vorrichtung wird nach folgend anhand der Zeichnungen kurz erläutert. Es zeigtAn embodiment of the device according to the invention is shown in explained briefly below with reference to the drawings. It shows
Fig. 1 eine schematische Seitenansicht einer erfindungsgemäßen Vorrichtung, Fig. 1 is a schematic side view of a device according to the invention,
Fig. 2 einen Schnitt entlang der Linie A-A aus Fig. 1. FIG. 2 shows a section along the line AA from FIG. 1.
Das Preßgut wird in der ersten Arbeitsstufe auf das waagrecht ver laufende Filterband 20 aufgebracht, durch dessen poröse Gestaltung, beispielsweise als textiles Gewebetuch, wird eine Vorentwässerung erzielt, die durch einen unter dem Preßband 20 angeordneten Saug kasten 12 durch Unterdruckeinwirkung noch unterstützt werden kann.The pressed material is applied in the first stage to the horizontally running filter belt 20 , through its porous design, for example as a textile cloth, a pre-dewatering is achieved, which can be supported by a suction box 12 arranged under the press belt 20 by the action of negative pressure.
Danach gelangt das Filtergut in die Stabilisierungsphase, bei der der allmähliche Druckaufbau zum Auspressen beginnt, und bei der es wesentlich ist, daß das Filtergut ganzflächig und allseitig von den beiden Filterbändern 20, 30 umschlossen ist, um ein seitliches Heraus quellen des Filtergutes zu vermeiden.Thereafter, the filter material enters the stabilization phase, in which the gradual build-up of pressure begins to be squeezed, and in which it is essential that the filter material is enclosed over the entire surface and on all sides by the two filter bands 20, 30 in order to prevent the filter material from swelling out to the side.
Dies wird dadurch erreicht, daß das Filterband 20 rückseitig an einer ebenen flüssigkeitsdurchlässigen Fläche 21 geführt ist, hinter der sich ein weiterer Saugkasten 22 befinden kann. This is achieved in that the filter belt 20 is guided on the back of a flat liquid-permeable surface 21 , behind which there can be another suction box 22 .
Das andere Filterband 30 wird beutelartig mit seinen Randbereichen an die Randbereiche des Filterbandes 20 gepreßt. Dies wird dadurch erreicht, daß Führungsleisten 23 mittels Gummischläuchen 24 oder ähnlichem in den Randbereichen der beiden Preßbänder diese aufein anderdrücken.The other filter band 30 is pressed bag-like with its edge regions to the edge regions of the filter band 20 . This is achieved in that guide strips 23 by means of rubber hoses 24 or the like in the edge areas of the two press belts press one another up.
Diese Preßvorrichtungen sind flexibel, so daß sie auch noch teil weise um die erste Umlenkwalze 25 in der Preßzone herumgeführt werden können. In diesem Bereich hat der Preßdruck bereits eine solche Größe erreicht, daß das Gefüge des Preßgutes soweit stabili siert ist, daß die weitere Pressung in der Preßphase in den Rollen paaren mit sich verringerndem Durchmesser (und dadurch steigendem Druck) zu keinem Herausquellen des einen Filterkuchen bildenden Preßgutes mehr führen kann.These pressing devices are flexible so that they can also be guided around the first deflecting roller 25 in the pressing zone. In this area, the pressing pressure has already reached such a size that the structure of the material to be pressed is stabilized to such an extent that the further pressing in the pressing phase in the rollers mate with a decreasing diameter (and therefore increasing pressure) to prevent the filter cake from swelling out Pressed goods can lead more.
Die verwendeten Walzen sind Lochwalzen und es ist möglich, an jeder beliebigen Stelle der Filterpresse Fruchtsaft entsprechender Kon zentration zu entnehmen.The rollers used are perforated rollers and it is possible on everyone any place of the filter press fruit juice corresponding con center.
Mit dem erfindungsgemäßen Verfahren ist insbesondere die Gewinnung von Weinrückständen aus Weinhefe ohne Schwierigkeiten möglich.With the method according to the invention in particular the extraction of wine residues from wine yeast possible without difficulty.
Claims (2)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19843414879 DE3414879A1 (en) | 1984-04-19 | 1984-04-19 | Process and apparatus for the removal of liquid from suspensions having a high liquid content, for beverage production or beverage recovery from residues |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19843414879 DE3414879A1 (en) | 1984-04-19 | 1984-04-19 | Process and apparatus for the removal of liquid from suspensions having a high liquid content, for beverage production or beverage recovery from residues |
Publications (2)
Publication Number | Publication Date |
---|---|
DE3414879A1 DE3414879A1 (en) | 1985-10-31 |
DE3414879C2 true DE3414879C2 (en) | 1989-05-18 |
Family
ID=6234045
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE19843414879 Granted DE3414879A1 (en) | 1984-04-19 | 1984-04-19 | Process and apparatus for the removal of liquid from suspensions having a high liquid content, for beverage production or beverage recovery from residues |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE3414879A1 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19805593A1 (en) * | 1998-02-12 | 1999-08-19 | Voith Sulzer Papiertech Patent | Thickener |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3459123A (en) * | 1966-09-15 | 1969-08-05 | American Sugar | Fruit press |
CH518727A (en) * | 1968-07-02 | 1972-02-15 | Gujer Hans | Device for sealing the filter space between two filter surfaces, in particular two circumferential filter belts |
DE2341360A1 (en) * | 1973-08-16 | 1975-02-20 | Bellmer Geb Kg Maschf | Double belt filter press - for expressing liquid from fibrous or sludge sus-pensions |
DE3046174A1 (en) * | 1980-12-08 | 1982-07-15 | Hein, Lehmann AG, 4000 Düsseldorf | Transversely tilted lateral sealing rollers for support belts - of continuously travelling filter belts in slurry filter press |
-
1984
- 1984-04-19 DE DE19843414879 patent/DE3414879A1/en active Granted
Also Published As
Publication number | Publication date |
---|---|
DE3414879A1 (en) | 1985-10-31 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
OP8 | Request for examination as to paragraph 44 patent law | ||
D2 | Grant after examination | ||
8364 | No opposition during term of opposition | ||
8339 | Ceased/non-payment of the annual fee |