WO2002047787A1 - Filter press for filtering suspensions - Google Patents

Filter press for filtering suspensions Download PDF

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Publication number
WO2002047787A1
WO2002047787A1 PCT/EP2001/013382 EP0113382W WO0247787A1 WO 2002047787 A1 WO2002047787 A1 WO 2002047787A1 EP 0113382 W EP0113382 W EP 0113382W WO 0247787 A1 WO0247787 A1 WO 0247787A1
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WO
WIPO (PCT)
Prior art keywords
filter
filter elements
press
elements
frame
Prior art date
Application number
PCT/EP2001/013382
Other languages
German (de)
French (fr)
Inventor
Richard Van Egdom
Original Assignee
Outokumpu Oyj
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 Outokumpu Oyj filed Critical Outokumpu Oyj
Priority to AU2002219122A priority Critical patent/AU2002219122A1/en
Publication of WO2002047787A1 publication Critical patent/WO2002047787A1/en

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D25/00—Filters formed by clamping together several filtering elements or parts of such elements
    • B01D25/12—Filter presses, i.e. of the plate or plate and frame type
    • B01D25/127—Filter presses, i.e. of the plate or plate and frame type with one or more movable filter bands arranged to be clamped between the press plates or between a plate and a frame during filtration, e.g. zigzag endless filter bands
    • B01D25/1275—Filter presses, i.e. of the plate or plate and frame type with one or more movable filter bands arranged to be clamped between the press plates or between a plate and a frame during filtration, e.g. zigzag endless filter bands the plates or the frames being placed in a non-vertical position
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D25/00—Filters formed by clamping together several filtering elements or parts of such elements
    • B01D25/12—Filter presses, i.e. of the plate or plate and frame type
    • B01D25/21—Plate and frame presses
    • B01D25/215—Construction of the filter plates, frames
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D25/00—Filters formed by clamping together several filtering elements or parts of such elements
    • B01D25/30—Feeding devices ; Discharge devices

Definitions

  • the invention relates to a filter press for the filtration of suspensions with at least one package of horizontally oriented filter elements mounted in a press frame, a filter chamber being arranged between adjacent filter elements, which is bounded at least on one side by a band-shaped filter medium, and the package of filter elements starting from from a filtration position, in which the filter elements are pressed against one another in a sealing manner, can be transferred into an open position, in which adjacent filter elements are at a distance from each other in the vertical direction.
  • Such filter presses are generally known under the name “press filter machines” and allow fully automatic operation of a filter press, since the filter cake in the open position of the packet of filter elements can be discharged by a feed movement of the filter belt passing through the packet and falls into special collecting devices on the side next to the filter press ,
  • the known filter presses exist both in versions in which a filter chamber is only delimited on one side by the filter medium, and in versions in which each filter chamber is delimited both upwards and downwards by the filter medium. In the latter embodiment, the effective filter area is doubled, which is why the filtration performance is increased to approximately the same extent.
  • the filtration performance of such filter presses depends primarily on the available filter area, i. H. of the product of the number of filter elements and the filter area per filter element.
  • An increase in filtration performance is only possible within certain limits, because on the one hand the number of filter elements arranged one above the other is limited by the room height at the installation site.
  • the filter area that is, the size of the individual filter elements, can only be increased up to certain dimensions.
  • plate-shaped filter elements made of plastic cannot be produced in any size.
  • the connection of individual plastic filter plates to one another by welding has proven to be disadvantageous in continuous operation, since the weld seam forms a potential break and such filter plates can only be hung on the head ends and on the side.
  • the maximum size of the filter elements is also limited by the fact that during the filter operation in neighboring filter chambers almost inevitably minor There are differences in the chamber pressures. These pressure differences lead to considerable forces in the not inconsiderable filter areas, which in the case of larger pressure differences could lead to plastic deformation of the filter plate or even to a filter plate breakage.
  • the invention has for its object to further develop a filter press so that the filtration performance can be increased significantly without the risk of deformation or damage to the filter elements.
  • this object is achieved according to the invention in that at least two packets of filter elements are arranged in a common press frame in the horizontal direction next to and or one behind the other.
  • the filter press according to the invention neither the overall height, ie the H. the number of filter elements arranged one above the other, and the size of the individual filter elements itself increased. Rather, the effective filter area is increased by arranging packets of filter elements next to one another or one behind the other, with all packets being arranged in a single press frame.
  • the costs for the filter press according to the invention are therefore comparatively low, since on the one hand the available filter elements can be used and on the other hand only a single press frame is required.
  • At least two packets arranged side by side and / or one behind the other in the horizontal direction have a common filter medium.
  • a common drive of the filter medium and a common washing device and common collecting devices for the dropped filter cake can be used.
  • the filter elements of at least two adjacent ones arranged in one plane Packages have a common frame in which a number of filter plates corresponding to the number of filter elements is each mounted with marginal play so that different thermal expansions of the filter plate and frame can be compensated for, and deflection rollers for the filter medium are attached to the frame.
  • each filter plate can be surrounded by a frame leg on all end faces.
  • the invention is further developed so that adjacent filter elements overlap one another in the horizontal direction. As a result, the penetration of filter cakes into gap areas between adjacent packets can be avoided or significantly reduced.
  • a particularly advantageous and structurally easy to carry out embodiment consists in that L-shaped profiles are fastened to mutually facing end faces of the filter elements, the horizontally extending legs of which overlap.
  • the filter elements are rectangular and several filter elements with their narrow sides are arranged one behind the other and have a common filter medium that can be moved in the longitudinal direction of the filter elements ,
  • Figure 1 is a side view of a filter press.
  • FIG. 2 shows a section through the filter press according to FIG. 1 with suspension pipes and filtrate drain pipes;
  • Fig. 4 shows a longitudinal section along the line IV through two filter elements arranged one behind the other.
  • the filter press 1 shown in FIGS. 1 to 4 serves for the filtration of suspensions and has a press frame 2 which comprises an upper yoke 3, a lower yoke 4, feet 5 and a guide frame 5 '.
  • the filter press 1 has four packages A, B, C, D of filter elements 6, which are aligned horizontally and are stacked vertically one above the other within each package A, B, C, D.
  • a filter chamber is arranged between each of two adjacent filter elements 6 in the vertical direction, which is bounded by a band-shaped filter medium 7 toward the lower filter element 6.
  • the filter press 1 is shown in an open position of the packets A, B, C, D of filter plates, in which there is a discharge distance 8 between adjacent filter elements 6 in the vertical direction.
  • the band-shaped filter medium 7 runs zigzag in the spaces between adjacent filter elements 6 and is deflected with the aid of deflection rollers 9, the bearing arms of which are not shown for reasons of clarity.
  • a filter belt washing system 10 and a filter belt drive 11 are shown schematically in FIG.
  • the filter elements 6 and the filter medium 7 running between them are pressed against one another with the aid of four hydraulic cylinders 12.
  • the filter chambers are fed to the filter chambers via suspension tubes 13 and flexible suspension hoses 14 starting therefrom.
  • the filtrate passes through filtrate drain hoses 15 into filtrate drain pipes 16.
  • the band-shaped filter medium 7 has such a width 17 that the filter medium 7 covers the packets A and C as well as B and D lying next to one another perpendicular to the direction of movement thereof.
  • Each filter element 6 in the four packets A, B, C, D has a rectangular filter plate 18 with a filter mirror 18 'shown hatched horizontally.
  • Four filter plates 18 arranged within one plane are surrounded by a common rectangular frame 19 which has two central struts 20 and 21 which are at right angles to one another.
  • Each of the filter plates 18 is connected on its opposite longitudinal sides 22 to two and on the opposite end faces 23 each with a pin-shaped connecting element 24 to the frame 19 or the central struts 20 and 21. Due to the filter plates 18 on all sides surrounding play S, different expansions - due to an increase in temperature during the filtration - between the filter plates 18 made of plastic, in particular polypropylene, and the frame 19 made of steel can be compensated for.
  • an L-shaped profile 25 and 26 is arranged on facing end faces 23 of the filter plates 18, the upper horizontally extending legs 27 and 28 of which overlap one another. This prevents filter cakes or other deposits from getting into the space between packages C and D (or A and B).
  • Filte ⁇ resse (1) for the filtration of suspensions with at least one in a press frame (2) stored package (A, B, C, D) of horizontally oriented filter elements (6), a filter chamber being arranged between adjacent filter elements (6) , which is bounded at least on one side by a band-shaped filter medium (7) and wherein the package (A, B, C, D) of filter elements (6) starting from a filtration position in which the filter elements (6) are pressed tightly against each other into a Openable position can be transferred, in which adjacent filter elements (6) have an emptying distance (8) from one another in the vertical direction, characterized in that at least two packets (A, B, C, D) of filter elements (6) in the common press frame (2) are arranged side by side and / or one behind the other in the horizontal direction.
  • Filte ⁇ resse according to claim 1 characterized in that at least two in the horizontal direction side by side and / or arranged one behind the other packages (A, B, C, D) have a common filter medium (7).
  • Filte ⁇ resse according to claim 1 or 2, characterized in that the arranged in one plane filter elements (6) of at least two adjacent packets (A, B, C, D) have a common frame (19) in which one of the number of Filter elements (6) corresponding number of Filte ⁇ latten (18) each with edge play (S) is mounted so that different thermal expansions of Filte ⁇ latte (18) and frame (19) can be compensated and where deflection rollers (9) for the filter medium (7) the frame (19) are attached.
  • Filte ⁇ resse according to one of claims 1 to 4, characterized in that adjacent filter elements (6) overlap each other in the horizontal direction.
  • Filte ⁇ resse according to claim 5 characterized in that on mutually facing end faces (23) of the filter elements (6) L-shaped profiles (25, 26) are attached, the horizontally extending legs (27, 28) overlap.

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Filtration Of Liquid (AREA)

Abstract

A filter press (1) for filtering suspensions comprises at least one packet (A, B, C, D), which consists of horizontally aligned filter elements (6) and which is lodged in a press frame (2). One filter chamber at a time is located between adjacent filter elements (6) and is delimited on at least one side by a strip-shaped filter medium (7). The packet (A, B, C, D) of filter elements (6), starting from a filtering position in which the filter elements (6) are tightly pressed against one another, can be transferred into an open position, in which adjacent filter elements (6) have an emptying space (8) between one another in a vertical direction. The aim of the invention is to obtain a filter press (1) with the highest possible filtering capacity without the risk of the filter elements (6) becoming bent or without the overall height taking on impermissibly large values. To this end, the invention provides that at least two packets (A, B, C, D) of filter elements (6) are arranged side-by-side and/or one behind the other in a horizontal direction inside the same press frame (2).

Description

Filterpresse zur Filtration von SuspensionenFilter press for the filtration of suspensions
Die Erfindung betrifft eine Filterpresse zur Filtration von Suspensionen mit mindestens einem in einem Pressengestell gelagerten Paket von horizontal ausgerichteten Filterelementen, wobei zwischen benachbarten Filterelementen jeweils eine Filterkammer angeordnet ist, die zumindest einseitig von einem bandförmigen Filtermedium begrenzt ist, und wobei das Paket von Filterelementen, ausgehend von einer Filtrationsstellung, in der die Filterelemente dichtend gegeneinander gepreßt sind, in eine Öffnungsstellung überführbar ist, in der benachbarte Filterelemente in vertikale Richtung einen Entleerungsabstand zueinander aufweisen.The invention relates to a filter press for the filtration of suspensions with at least one package of horizontally oriented filter elements mounted in a press frame, a filter chamber being arranged between adjacent filter elements, which is bounded at least on one side by a band-shaped filter medium, and the package of filter elements starting from from a filtration position, in which the filter elements are pressed against one another in a sealing manner, can be transferred into an open position, in which adjacent filter elements are at a distance from each other in the vertical direction.
Derartige Filterpressen sind unter der Bezeichnung "Pressfilterautomaten" allgemein bekannt und erlauben einen vollautomatischen Betrieb einer Filterpresse, da der Filterkuchen in der Öffnungsstellung des Pakets von Filterelementen durch eine Vorschubbewegung des zickzackförmig das Paket durchlaufenden Filterbandes ausgetragen werden kann und seitlich neben der Filterpresse in besondere Sammelvorrichtungen fällt. Die bekannten Filterpressen existieren sowohl in Ausführungen, bei denen eine Filterkammer lediglich einseitig von dem Filtermedium begrenzt wird, als auch in Ausführungen, bei denen jede Filterkammer sowohl nach oben als auch nach unten von dem Filtermedium begrenzt wird. Bei letzterer Ausführungsform ist die wirksame Filterfläche verdoppelt, weshalb die Filtrationsleistung in ungefähr gleichem Maße erhöht ist.Such filter presses are generally known under the name "press filter machines" and allow fully automatic operation of a filter press, since the filter cake in the open position of the packet of filter elements can be discharged by a feed movement of the filter belt passing through the packet and falls into special collecting devices on the side next to the filter press , The known filter presses exist both in versions in which a filter chamber is only delimited on one side by the filter medium, and in versions in which each filter chamber is delimited both upwards and downwards by the filter medium. In the latter embodiment, the effective filter area is doubled, which is why the filtration performance is increased to approximately the same extent.
Die Filtrationsleistung derartiger Filterpressen hängt in erster Linie von der vorhandenen Filterfläche ab, d. h. von dem Produkt aus der Anzahl der Filterelemente und der Filterfläche pro Filterelement. Eine Steigerung der Filtrationsleistung ist nur innerhalb bestimmter Grenzen möglich, da zum einen die Anzahl der übereinander angeordneten Filterelemente durch die Raumhöhe am Aufbauort begrenzt wird. Zum anderen läßt sich die Filterfläche, das heißt, die Größe der einzelnen Filterelemente lediglich bis zu bestimmten Maßen erhöhen. So lassen sich insbesondere aus Kunststoff bestehende plattenförmige Filterelemente nicht in beliebig großen Abmessungen herstellen. Die Verbindung einzelner Kunststoff-Filterplatten miteinander im Wege eines Verschweißens hat sich im Dauerbetrieb als nachteilig erwiesen, da die Schweißnaht eine potentielle Bruchstelle bildet und derartige Filterplatten nur an den Kopfenden und seitlich aufgehängt werden können.The filtration performance of such filter presses depends primarily on the available filter area, i. H. of the product of the number of filter elements and the filter area per filter element. An increase in filtration performance is only possible within certain limits, because on the one hand the number of filter elements arranged one above the other is limited by the room height at the installation site. On the other hand, the filter area, that is, the size of the individual filter elements, can only be increased up to certain dimensions. In particular, plate-shaped filter elements made of plastic cannot be produced in any size. The connection of individual plastic filter plates to one another by welding has proven to be disadvantageous in continuous operation, since the weld seam forms a potential break and such filter plates can only be hung on the head ends and on the side.
Die maximale Größe der Filterelemente wird auch durch den Umstand begrenzt, daß während des Filterbetriebs in benachbarten Filterkammern fast unvermeidlich geringfügige Unterschiede in den Kammerdrücken bestehen. Diese Druckdifferenzen führen bei den nicht unbeträchtlichen Filterflächen zu erheblichen Kräften, die im Fall größerer Druckunterschiede zu einer plastischen Verformung der Filterplatte bzw. sogar zu einem Filterplattenbruch führen könnten.The maximum size of the filter elements is also limited by the fact that during the filter operation in neighboring filter chambers almost inevitably minor There are differences in the chamber pressures. These pressure differences lead to considerable forces in the not inconsiderable filter areas, which in the case of larger pressure differences could lead to plastic deformation of the filter plate or even to a filter plate breakage.
Der Erfindung liegt die Aufgabe zugrunde, eine Filterpresse so weiterzuentwickeln, daß die Filtrationsleistung deutlich gesteigert werden kann, ohne daß die Gefahr einer Deformation oder Beschädigung der Filterelemente besteht.The invention has for its object to further develop a filter press so that the filtration performance can be increased significantly without the risk of deformation or damage to the filter elements.
Ausgehend von einer Filterpresse der eingangs beschriebenen Art wird diese Aufgabe erfindungsgemäß dadurch gelöst, daß mindestens zwei Pakete von Filterelementen in einem gemeinsamen Pressengestell in horizontale Richtung nebeneinander und oder hintereinander angeordnet sind.Starting from a filter press of the type described in the introduction, this object is achieved according to the invention in that at least two packets of filter elements are arranged in a common press frame in the horizontal direction next to and or one behind the other.
Bei der erfϊndungsgemäßen Filterpresse wird somit zur Steigerung der Filtrationsleistung weder die Bauhöhe, d. h. die Anzahl der übereinander angeordneten Filterelemente, noch die Größe der einzelnen Filterelemente an sich erhöht. Vielmehr erfolgt die Erhöhung der wirksamen Filterfläche durch eine Nebeneinander- bzw. Hintereinanderanordnung von Paketen von Filterelementen, wobei sämtliche Pakete in einem einzigen Pressengestell angeordnet sind.In the case of the filter press according to the invention, neither the overall height, ie the H. the number of filter elements arranged one above the other, and the size of the individual filter elements itself increased. Rather, the effective filter area is increased by arranging packets of filter elements next to one another or one behind the other, with all packets being arranged in a single press frame.
Die Kosten für die Filterpresse gemäß der Erfindung sind daher vergleichsweise niedrig, da zum einen auf die vorhandenen Filterelemente zurückgegriffen werden kann und zum anderen lediglich ein einziges Pressengestell erforderlich ist.The costs for the filter press according to the invention are therefore comparatively low, since on the one hand the available filter elements can be used and on the other hand only a single press frame is required.
Zum Zwecke einer weiteren Vereinfachung der erfindungsgemäßen Konstruktion wird vorgeschlagen, daß mindestens zwei in horizontale Richtung nebeneinander und/ oder hintereinander angeordnete Pakete ein gemeinsames Filtermedium besitzen. Hierdurch läßt sich ein gemeinsamer Antrieb des Filtermediums sowie eine gemeinsame Wascheinrichtung sowie gemeinsame Auffangeinrichtungen für den abgeworfenen Filterkuchen verwenden.For the purpose of further simplifying the construction according to the invention, it is proposed that at least two packets arranged side by side and / or one behind the other in the horizontal direction have a common filter medium. As a result, a common drive of the filter medium and a common washing device and common collecting devices for the dropped filter cake can be used.
Um für die Filterelemente Kunststoffmaterial verwenden zu können und gleichzeitig eine stabile Aufnahme für die Umlenkeinrichtungen für das Filtermedium zur Verfügung zu haben sowie auch im Falle von Temperaturdehnungen - wie sie bei einer Heißfiltration auftreten - Verspannungen und Verschiebungen der Umlenkeinrichtungen zu verhindern, ist vorgesehen, daß die in einer Ebene angeordneten Filterelemente von mindestens zwei benachbarten Paketen einen gemeinsamen Rahmen aufweisen, in dem eine der Zahl der Filterelemente entsprechende Zahl von Filterplatten jeweils mit randseitigem Spiel so gelagert ist, daß unterschiedliche Wärmedehnungen von Filterplatte und Rahmen kompensierbar sind und wobei Umlenkwalzen für das Filtermedium an dem Rahmen befestigt sind.In order to be able to use plastic material for the filter elements and at the same time to have a stable receptacle for the deflection devices for the filter medium and also to prevent tension and displacements of the deflection devices in the event of temperature expansions - such as occur with hot filtration - it is provided that the filter elements of at least two adjacent ones arranged in one plane Packages have a common frame in which a number of filter plates corresponding to the number of filter elements is each mounted with marginal play so that different thermal expansions of the filter plate and frame can be compensated for, and deflection rollers for the filter medium are attached to the frame.
Um eine möglichst umlaufende Abstützung der Filterplatte innerhalb des Rahmens zu ermöglichen, kann jede Filterplatte an allen Stirnseiten von einem Rahmenschenkel umgeben sein.In order to enable the filter plate to be supported as far as possible inside the frame, each filter plate can be surrounded by a frame leg on all end faces.
Die Erfindung weiter ausgestaltend ist vorgesehen, daß in horizontale Richtung benachbarte Filterelemente einander überlappen. Hierdurch kann ein Eindringen von Filterkuchen in Spaltbereiche zwischen benachbarten Paketen vermieden bzw. wesentlich verringert werden.The invention is further developed so that adjacent filter elements overlap one another in the horizontal direction. As a result, the penetration of filter cakes into gap areas between adjacent packets can be avoided or significantly reduced.
Eine besonders vorteilhafte und konstruktiv leicht auszuführende Ausführungsform besteht darin, daß an einander zugewandten Stirnseiten der Filterelemente L-förmige Profile befestigt sind, deren horizontal verlaufende Schenkel sich überlappen.A particularly advantageous and structurally easy to carry out embodiment consists in that L-shaped profiles are fastened to mutually facing end faces of the filter elements, the horizontally extending legs of which overlap.
Um die Breite des bandförmigen Filtermediums gering zu halten und dadurch Verwerfungen vermeiden zu können, ist es besonders vorteilhaft, wenn die Filterelemente rechteckförmig sind und mehrere Filterelemente mit ihren Schmalseiten aufeinander zu gerichtet hintereinander angeordnet sind und ein gemeinsames, in Längsrichtung der Filterelemente bewegbares, Filtermedium besitzen.In order to keep the width of the band-shaped filter medium small and thereby avoid warping, it is particularly advantageous if the filter elements are rectangular and several filter elements with their narrow sides are arranged one behind the other and have a common filter medium that can be moved in the longitudinal direction of the filter elements ,
Die Erfindung wird nachfolgend anhand eines Ausführungsbeispiels einer Filterpresse, die in der Zeichnung dargestellt ist, näher erläutert. Es zeigtThe invention is explained in more detail below using an exemplary embodiment of a filter press, which is shown in the drawing. It shows
Fig. 1 eine Seitenansicht einer Filterpresse;Figure 1 is a side view of a filter press.
Fig. 2 einen Schnitt durch die Filterpresse gemäß Fig. 1 mit Suspensionsrohren und Filtratablaufrohren ;FIG. 2 shows a section through the filter press according to FIG. 1 with suspension pipes and filtrate drain pipes;
Fig. 3 wie Fig. 2, jedoch ohne Darstellung des Filtertuchs und der Suspensions- und Filtratablaufrohre undFig. 3 as Fig. 2, but without showing the filter cloth and the suspension and filtrate drain pipes and
Fig. 4 einem Längsschnitt entlang der Linie IV durch zwei hintereinander angeordnete Filterelemente. Die in den Figuren 1 bis 4 dargestellte Filterpresse 1 dient zur Filtration von Suspensionen und weist ein Pressengestell 2 auf, das ein Oberjoch 3, ein Unterjoch 4, Füße 5 sowie einen Führungsrahmen 5' umfaßt.Fig. 4 shows a longitudinal section along the line IV through two filter elements arranged one behind the other. The filter press 1 shown in FIGS. 1 to 4 serves for the filtration of suspensions and has a press frame 2 which comprises an upper yoke 3, a lower yoke 4, feet 5 and a guide frame 5 '.
Die Filterpresse 1 besitzt vier Pakete A, B, C, D von Filterelementen 6, die horizontal ausgerichtet sind und innerhalb jedes Paketes A, B, C, D vertikal übereinander gestapelt sind.The filter press 1 has four packages A, B, C, D of filter elements 6, which are aligned horizontally and are stacked vertically one above the other within each package A, B, C, D.
Jeweils zwischen zwei in vertikale Richtung benachbarten Filterelementen 6 ist im geschlossenen Zustand eine Filterkammer angeordnet, die jeweils zu dem unteren Filterelement 6 hin von einem bandförmigen Filtermedium 7 begrenzt wird.In the closed state, a filter chamber is arranged between each of two adjacent filter elements 6 in the vertical direction, which is bounded by a band-shaped filter medium 7 toward the lower filter element 6.
In Figur 1 ist die Filterpresse 1 in einer Öffnungsstellung der Pakete A, B, C, D von Filterplatten dargestellt, in der zwischen benachbarten Filterelementen 6 in vertikale Richtung ein Entleerungsabstand 8 besteht. Das bandförmige Filtermedium 7 verläuft zickzackförmig in den Zwischenräumen zwischen benachbarten Filterelementen 6 und wird mit Hilfe von Umlenkwalzen 9, deren Lagerarme aus Gründen der Übersichtlichkeit nicht dargestellt sind, umgelenkt. Des weiteren ist in Figur 1 noch schematisch eine Filterbandwaschanlage 10 sowie ein Filterbandantrieb 11 dargestellt.In Figure 1, the filter press 1 is shown in an open position of the packets A, B, C, D of filter plates, in which there is a discharge distance 8 between adjacent filter elements 6 in the vertical direction. The band-shaped filter medium 7 runs zigzag in the spaces between adjacent filter elements 6 and is deflected with the aid of deflection rollers 9, the bearing arms of which are not shown for reasons of clarity. Furthermore, a filter belt washing system 10 and a filter belt drive 11 are shown schematically in FIG.
In einer in den Figuren nicht dargestellten Filtrationsstellung der Pakete A, B, C, D sind die Filterelemente 6 und das dazwischen verlaufende Filtermedium 7 mit Hilfe von vier Hydraulikzylindern 12 dichtend gegeneinander gepreßt. In der Schließstellung wird den Filterkammern über Suspensionsrohre 13 und davon ausgehende flexible Suspensionsschläuche 14 die zu filtrierende Suspension zugeführt. Das Filtrat gelangt über Filtratablaufschläuche 15 in Filtratablaufrohre 16.In a filtration position of the packets A, B, C, D, not shown in the figures, the filter elements 6 and the filter medium 7 running between them are pressed against one another with the aid of four hydraulic cylinders 12. In the closed position, the filter chambers are fed to the filter chambers via suspension tubes 13 and flexible suspension hoses 14 starting therefrom. The filtrate passes through filtrate drain hoses 15 into filtrate drain pipes 16.
Wie aus Figur 2 ersichtlich ist, besitzt das bandförmige Filtermedium 7 eine solche Breite 17, daß von dem Filtermedium 7 die senkrecht zu dessen Bewegungsrichtung nebeneinander liegenden Pakete A und C sowie B und D überdeckt werden. Jedes Filterelement 6 in den vier Paketen A, B, C, D weist eine rechteckförmige Filterplatte 18 mit einem horizontal schraffiert dargestellten Filterspiegel 18' auf. Vier innerhalb von einer Ebene angeordnete Filterplatten 18 sind von einem gemeinsamen rechteckförmigen Rahmen 19 umgeben, der zwei rechtwinklig aufeinander stehende Mittelstreben 20 und 21 besitzt. Jede der Filterplatten 18 ist an ihren gegenüberliegenden Längsseiten 22 mit zwei und an den gegenüberliegenden Stirnseiten 23 jeweils mit einem stiftförmigen Verbindungselement 24 mit dem Rahmen 19 bzw. den Mittelstreben 20 bzw. 21 verbunden. Aufgrund eines allseitig die Filterplatten 18 umgebenden Spiels S können unterschiedliche Ausdehnungen - bedingt durch eine Temperaturerhöhung während der Filtration - zwischen den aus Kunststoff, insbesondere aus Polypropylen, bestehenden Filterplatten 18 und dem aus Stahl bestehenden Rahmen 19 kompensiert werden.As can be seen from FIG. 2, the band-shaped filter medium 7 has such a width 17 that the filter medium 7 covers the packets A and C as well as B and D lying next to one another perpendicular to the direction of movement thereof. Each filter element 6 in the four packets A, B, C, D has a rectangular filter plate 18 with a filter mirror 18 'shown hatched horizontally. Four filter plates 18 arranged within one plane are surrounded by a common rectangular frame 19 which has two central struts 20 and 21 which are at right angles to one another. Each of the filter plates 18 is connected on its opposite longitudinal sides 22 to two and on the opposite end faces 23 each with a pin-shaped connecting element 24 to the frame 19 or the central struts 20 and 21. Due to the filter plates 18 on all sides surrounding play S, different expansions - due to an increase in temperature during the filtration - between the filter plates 18 made of plastic, in particular polypropylene, and the frame 19 made of steel can be compensated for.
Wie sich aus Figur 4 in Verbindung mit Figur 3 ergibt, ist an einander zugewandten Stirnseiten 23 der Filteφlatten 18 jeweils ein L-förmiges Profil 25 und 26 angeordnet, deren obere horizontal verlaufende Schenkel 27 und 28 einander überlappen. Hierdurch wird verhindert, daß Filterkuchen oder sonstige Ablagerungen in den Zwischenraum zwischen den Paketen C und D (bzw. A und B) gelangen können. As can be seen from FIG. 4 in conjunction with FIG. 3, an L-shaped profile 25 and 26 is arranged on facing end faces 23 of the filter plates 18, the upper horizontally extending legs 27 and 28 of which overlap one another. This prevents filter cakes or other deposits from getting into the space between packages C and D (or A and B).
Patentansprüche :Claims:
1. Filteφresse (1) zur Filtration von Suspensionen mit mindestens einem in einem Pressengestell (2) gelagerten Paket (A, B, C, D) von horizontal ausgerichteten Filterelementen (6), wobei zwischen benachbarten Filterelementen (6) jeweils eine Filterkammer angeordnet ist, die zumindest einseitig von einem bandförmigen Filtermedium (7) begrenzt ist und wobei das Paket (A, B, C, D) von Filterelementen (6) ausgehend von einer Filtrationsstellung, in der die Filterelemente (6) dichtend gegeneinander gepreßt sind, in eine Öffnungsstellung überführbar ist, in der benachbarte Filterelemente (6) in vertikale Richtung einen Entleerungsabstand (8) zueinander aufweisen, dadurch gekennzeichnet, daß mindestens zwei Pakete (A, B, C, D) von Filterelementen (6) in dem gemeinsamen Pressengestell (2) in horizontale Richtung nebeneinander und/oder hintereinander angeordnet sind.1. Filteφresse (1) for the filtration of suspensions with at least one in a press frame (2) stored package (A, B, C, D) of horizontally oriented filter elements (6), a filter chamber being arranged between adjacent filter elements (6) , which is bounded at least on one side by a band-shaped filter medium (7) and wherein the package (A, B, C, D) of filter elements (6) starting from a filtration position in which the filter elements (6) are pressed tightly against each other into a Openable position can be transferred, in which adjacent filter elements (6) have an emptying distance (8) from one another in the vertical direction, characterized in that at least two packets (A, B, C, D) of filter elements (6) in the common press frame (2) are arranged side by side and / or one behind the other in the horizontal direction.
2. Filteφresse nach Anspruch 1, dadurch gekennzeichnet, daß mindestens zwei in horizontale Richtung nebeneinander und/ oder hintereinander angeordnete Pakete (A, B, C, D) ein gemeinsames Filtermedium (7) besitzen.2. Filteφresse according to claim 1, characterized in that at least two in the horizontal direction side by side and / or arranged one behind the other packages (A, B, C, D) have a common filter medium (7).
3. Filteφresse nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß die in einer Ebene angeordneten Filterelemente (6) von mindestens zwei benachbarten Paketen (A, B, C, D) einen gemeinsamen Rahmen (19) aufweisen, in dem eine der Zahl der Filterelemente (6) entsprechende Zahl von Filteφlatten (18) jeweils mit randseitigem Spiel (S) so gelagert ist, daß unterschiedliche Wärmedehnungen von Filteφlatte (18) und Rahmen (19) kompensierbar sind und wobei Umlenkwalzen (9) für das Filtermedium (7) an dem Rahmen (19) befestigt sind.3. Filteφresse according to claim 1 or 2, characterized in that the arranged in one plane filter elements (6) of at least two adjacent packets (A, B, C, D) have a common frame (19) in which one of the number of Filter elements (6) corresponding number of Filteφlatten (18) each with edge play (S) is mounted so that different thermal expansions of Filteφlatte (18) and frame (19) can be compensated and where deflection rollers (9) for the filter medium (7) the frame (19) are attached.
4. Filteφresse nach Anspruch 3, dadurch gekennzeichnet, daß jede Filteφlatte (18) an allen Stirnseiten (23) und allen Längsseiten (22) von einem Rahmenschenkel umgeben ist.4. Filteφresse according to claim 3, characterized in that each Filteφlatte (18) on all end faces (23) and all long sides (22) is surrounded by a frame leg.
5. Filteφresse nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß in horizontale Richtung benachbarte Filterelemente (6) einander überlappen.5. Filteφresse according to one of claims 1 to 4, characterized in that adjacent filter elements (6) overlap each other in the horizontal direction.
6. Filteφresse nach Anspruch 5, dadurch gekennzeichnet, daß an einander zugewandten Stirnseiten (23) der Filterelemente (6) L-förmige Profile (25, 26) befestigt sind, deren horizontal verlaufende Schenkel (27, 28) sich überlappen. Filteφresse nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, daß die Filterelemente (6) rechteckförmig sind und mehrere Filterelemente (6) mit ihren Schmalseiten aufeinander zu gerichtet hintereinander angeordnet sind und ein gemeinsames in Längsrichtung der Filterelemente (6) bewegbares Filtermedium (7) besitzen. 6. Filteφresse according to claim 5, characterized in that on mutually facing end faces (23) of the filter elements (6) L-shaped profiles (25, 26) are attached, the horizontally extending legs (27, 28) overlap. Filteφresse according to one of claims 1 to 6, characterized in that the filter elements (6) are rectangular and a plurality of filter elements (6) with their narrow sides are arranged one behind the other and a common filter medium (7) movable in the longitudinal direction of the filter elements (6) have.
PCT/EP2001/013382 2000-12-12 2001-11-20 Filter press for filtering suspensions WO2002047787A1 (en)

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DE10061919A DE10061919C1 (en) 2000-12-12 2000-12-12 Filter press for filtering suspension has several packets of horizontal filter elements within common press frame

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013059556A1 (en) 2011-10-19 2013-04-25 Flsmidth A/S Contiguous filter press and methods of manufacturing the same

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10304005B4 (en) * 2003-02-01 2007-09-13 Outokumpu Oyj Filter plate for a filter press
DE10304004B3 (en) * 2003-02-01 2004-04-29 Outokumpu Oyj Frame holding filtration plate in filter press includes moveable brace fixed to narrow side of filter plate
CN110877292B (en) * 2019-10-23 2021-10-08 安徽中马磁能科技股份有限公司 Permanent magnetic ferrite abrasive material automatic collection recycles device

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4346003A (en) * 1980-11-03 1982-08-24 Polyakov Nikolai F Mash-separating filter-press
DE3441718A1 (en) * 1984-11-15 1986-05-15 Grau Feinwerktechnik GmbH & Co, 7926 Böhmenkirch Plate filter press
DE3600526A1 (en) * 1986-01-10 1987-07-16 Grau Feinwerktech Membrane filter press

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3306206C2 (en) * 1983-02-23 1986-01-09 Achenbach Buschhütten GmbH, 5910 Kreuztal Horizontal plate filter
DE4207564C2 (en) * 1992-03-10 1994-03-10 Achenbach Buschhuetten Gmbh Horizontal plate filter

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4346003A (en) * 1980-11-03 1982-08-24 Polyakov Nikolai F Mash-separating filter-press
DE3441718A1 (en) * 1984-11-15 1986-05-15 Grau Feinwerktechnik GmbH & Co, 7926 Böhmenkirch Plate filter press
DE3600526A1 (en) * 1986-01-10 1987-07-16 Grau Feinwerktech Membrane filter press

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013059556A1 (en) 2011-10-19 2013-04-25 Flsmidth A/S Contiguous filter press and methods of manufacturing the same
CN104136087A (en) * 2011-10-19 2014-11-05 Fl史密斯公司 Contiguous filter press and methods of manufacturing the same
EP2802395A1 (en) * 2011-10-19 2014-11-19 FLSmidth A/S Contiguous filter press and methods of manufacturing the same
EP2802395A4 (en) * 2011-10-19 2015-01-28 Smidth As F L Contiguous filter press and methods of manufacturing the same

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AU2002219122A1 (en) 2002-06-24

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