EP1654074A1 - Plate filter element - Google Patents

Plate filter element

Info

Publication number
EP1654074A1
EP1654074A1 EP04733249A EP04733249A EP1654074A1 EP 1654074 A1 EP1654074 A1 EP 1654074A1 EP 04733249 A EP04733249 A EP 04733249A EP 04733249 A EP04733249 A EP 04733249A EP 1654074 A1 EP1654074 A1 EP 1654074A1
Authority
EP
European Patent Office
Prior art keywords
filter element
warp
plate
wires
shaped filter
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.)
Withdrawn
Application number
EP04733249A
Other languages
German (de)
French (fr)
Inventor
Friedrich Edelmeier
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.)
Haver and Boecker OHG
Original Assignee
Haver and Boecker OHG
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 Haver and Boecker OHG filed Critical Haver and Boecker OHG
Publication of EP1654074A1 publication Critical patent/EP1654074A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
    • B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
    • B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
    • B07B1/46—Constructional details of screens in general; Cleaning or heating of screens
    • B07B1/4609—Constructional details of screens in general; Cleaning or heating of screens constructional details of screening surfaces or meshes
    • B07B1/4663—Multi-layer screening surfaces
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D39/00—Filtering material for liquid or gaseous fluids
    • B01D39/08—Filter cloth, i.e. woven, knitted or interlaced material
    • B01D39/086—Filter cloth, i.e. woven, knitted or interlaced material of inorganic material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
    • B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
    • B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
    • B07B1/46—Constructional details of screens in general; Cleaning or heating of screens
    • B07B1/4609—Constructional details of screens in general; Cleaning or heating of screens constructional details of screening surfaces or meshes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21F—WORKING OR PROCESSING OF METAL WIRE
    • B21F27/00—Making wire network, i.e. wire nets
    • B21F27/12—Making special types or portions of network by methods or means specially adapted therefor
    • B21F27/18—Making special types or portions of network by methods or means specially adapted therefor of meshed work for filters or sieves
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/22—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed
    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D13/00—Woven fabrics characterised by the special disposition of the warp or weft threads, e.g. with curved weft threads, with discontinuous warp threads, with diagonal warp or weft
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2239/00—Aspects relating to filtering material for liquid or gaseous fluids
    • B01D2239/06—Filter cloth, e.g. knitted, woven non-woven; self-supported material
    • B01D2239/0604—Arrangement of the fibres in the filtering material
    • B01D2239/0613—Woven
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2239/00—Aspects relating to filtering material for liquid or gaseous fluids
    • B01D2239/06—Filter cloth, e.g. knitted, woven non-woven; self-supported material
    • B01D2239/065—More than one layer present in the filtering material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2239/00—Aspects relating to filtering material for liquid or gaseous fluids
    • B01D2239/06—Filter cloth, e.g. knitted, woven non-woven; self-supported material
    • B01D2239/065—More than one layer present in the filtering material
    • B01D2239/0654—Support layers
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
    • Y10T428/24033—Structurally defined web or sheet [e.g., overall dimension, etc.] including stitching and discrete fastener[s], coating or bond
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T442/00—Fabric [woven, knitted, or nonwoven textile or cloth, etc.]
    • Y10T442/30—Woven fabric [i.e., woven strand or strip material]
    • Y10T442/3382—Including a free metal or alloy constituent
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T442/00—Fabric [woven, knitted, or nonwoven textile or cloth, etc.]
    • Y10T442/30—Woven fabric [i.e., woven strand or strip material]
    • Y10T442/3382—Including a free metal or alloy constituent
    • Y10T442/339—Metal or metal-coated strand

Definitions

  • the invention relates to a plate-shaped filter element which consists of several layers of wire mesh, of which at least one layer is a filter mesh, in which each layer of the wire and filter mesh has warp and weft wires connected to one another in a type of weave.
  • the layers forming the plate-shaped filter element usually consist of metallic fabrics.
  • the plate-shaped filter element could also be called a composite plate.
  • Such filter elements are known in many designs.
  • the pore size of the filter fabric depends on the sizes of the particles to be filtered.
  • Two different methods are known for separating particles from a good, a liquid, an emulsion or a similar substance. According to a first method, the particles are separated out by means of a sieve device and according to a second method by means of a filter device which contains the plate-shaped filter element or the fabric layers.
  • the filter fabric consists exclusively of the warp wires and the weft wires running at right angles to them. As a result, the projection becomes square
  • Filter fabrics of this type have proven themselves very well, but they are not fully satisfactory for certain applications, for example for filtering particles of a certain size from an emulsion.
  • the invention has for its object to design a plate-shaped filter element of the type described in the introduction so that particles of a certain size can be filtered out of a filterable material.
  • particles from a liquid, an emulsion or the like. be filtered out.
  • the object is achieved in that at least the layer forming the filter fabric is provided with alternating crossings which are at a distance from one another and run obliquely to the warp and weft threads.
  • the sizes of the stitches are now not only determined by the distances between the warp and weft wires, but gussets are formed that deviate from the square shape. The size of this gusset therefore also depends on the positions of the alternating crossings to the warp and the weft wires.
  • the interchangeable junctions also contribute to the stabilization of the filter fabric, since they also consist of wires.
  • the interchangeable intersections run in a zigzag shape, with each rectilinear section extending over a constant number of warp wires. Due to the zigzag shape of the interchangeability, the stability is further increased, so that it can be assumed that the service life of the filter element is increased compared to the known designs.
  • the alternating crossings expediently run from the edges running parallel and at a distance from the warp wires, since each rectilinear section of the zigzag-shaped alternating intersections extends over a constant number of warp wires, a constant mesh size is achieved over the entire filter area.
  • the straight sections of the interchangeable weft wires extend over a maximum of twenty warp wires.
  • the bindings of the warp and weft wires are special ZZ bindings. This results in favorable conditions for the bonds of the crossroads.
  • the warp wires are changed sides when a certain number of weft wires have been skipped and this number matches the warp wires skipped by the weft wires.
  • the number of skipped warp wires is two in each case. The respective on one side form two pieces each.
  • the respective sections of the warp and weft wires lying on one side are offset from warp wire to warp wire to a weft wire.
  • the sections of the weft wires lying on one side are also offset from one another, which is a warp wire from weft wire to weft wire.
  • the diameter of the warp wires and the weft wires can vary
  • the diameters of the wires forming the interchangeable crossings can match or differ from the diameters of the weft wires. However, designs are also feasible in which the diameters of the wires forming the alternating crossings differ from the diameters of the warp wires and
  • weft wires differ. Regardless of the design, it is provided that the wires forming the alternating crossings run at an angle of 45 ° to the warp wires and to the weft wires. The wires forming the alternating crossings then extend over the same number of warp and weft wires. For certain applications, it may be necessary for
  • the plate-shaped filter element has a protective fabric which is assigned to the filter fabric. It may also be necessary for the plate-shaped filter element to be provided with a supporting fabric in order to stabilize it. It may be appropriate that the weave of the protective and support fabric corresponds to the weave of the filter fabric.
  • Mesh size of the protective fabric is preferably larger than that of the filter fabric.
  • the plate-shaped filter element is also equipped with a drainage fabric. This optimizes the quantitative filter performance.
  • the plate-shaped filter elements in question are to be regarded as fine-meshed.
  • the metallic wire mesh layers are firmly connected to one another by diffusion.
  • the plate-shaped filter elements in question are used in filter plates and cylindrical filters and are particularly suitable for one-sided loading.
  • the layer forming the filter fabric is preferably woven according to the BMT-ZZ weave.

Abstract

According to the invention, a plate filter element is made from several mesh layers, in which at least one layer is a filter screen which is embodied such that particles are filtered from a filtered material in a particular size order, whereby, in particular, particles can be filtered from a fluid, an emulsion or similar. Said filter element is embodied such that at least the layer forming the filter screen is provided with crossovers at an angle to the warp and weft threads, running at a separation from each other. The crossovers run in a zigzag whereby each straight section runs over the same number of warp threads. The crossovers run from the edges which are parallel to and at a separation from the warp wires. Said filter element is particularly suitable for the filtering of emulsions.

Description

Plattenförmiges Filterelement Plate-shaped filter element
Die Erfindung betrifft ein plattenförmiges Filterelement, welches aus mehreren Lagen eines Drahtgewebes besteht, von denen mindestens eine Lage ein Filtergewebe ist, bei dem jede Lage des Draht- und Filtergewebes in einer Bindungsart miteinander verbundene Kett- und Schußdrähte aufweist.The invention relates to a plate-shaped filter element which consists of several layers of wire mesh, of which at least one layer is a filter mesh, in which each layer of the wire and filter mesh has warp and weft wires connected to one another in a type of weave.
Die das plattenförmige Filterelement bildenden Lagen bestehen üblicherweise aus metallischen Geweben. Das plattenförmige Filterelement könnte auch als Verbundplatte bezeichnet werden. Derartige Filterelemente sind in vielen Ausführun- gen bekannt. Die Porengröße des Filtergewebes richtet sich nach den Größen der zu filtrierenden Partikel. Um Partikel aus einem Gut, einer Flüssigkeit, einer E- mulsion oder einem ähnlichen Stoff auszuscheiden, sind zwei verschiedene Verfahren bekannt. Gemäß einem ersten Verfahren erfolgt das Ausscheiden der Partikel mittels einer Siebeinrichtung und gemäß einem zweiten Verfahren mittels einer Filtereinrichtung, die das plattenförmige Filterelement bzw. die Gewebelagen enthält.The layers forming the plate-shaped filter element usually consist of metallic fabrics. The plate-shaped filter element could also be called a composite plate. Such filter elements are known in many designs. The pore size of the filter fabric depends on the sizes of the particles to be filtered. Two different methods are known for separating particles from a good, a liquid, an emulsion or a similar substance. According to a first method, the particles are separated out by means of a sieve device and according to a second method by means of a filter device which contains the plate-shaped filter element or the fabric layers.
Bei den bislang beim Filtrieren eingesetzten plattenförmigen Filterelementen besteht das Filtergewebe ausschließlich aus den Kettdrähten und den rechtwinklig dazu verlaufenden Schußdrähten. Dadurch werden in der Projektion viereckigeIn the case of the plate-shaped filter elements previously used for filtering, the filter fabric consists exclusively of the warp wires and the weft wires running at right angles to them. As a result, the projection becomes square
Maschen oder dreidimensionale Dreiecke bzw. Öffnungen geschaffen. Derartige Filtergewebe haben sich bestens bewährt, sie sind jedoch für bestimmte Anwendungen, beispielsweise zum Filtrieren von Partikeln bestimmter Größe aus einer Emulsion nicht voll zufriedenstellend.Meshes or three-dimensional triangles or openings created. Filter fabrics of this type have proven themselves very well, but they are not fully satisfactory for certain applications, for example for filtering particles of a certain size from an emulsion.
Der Erfindung liegt die Aufgabe zugrunde, ein plattenförmiges Filterelement der eingangs näher beschriebenen Art so zu gestalten, daß Partikel in einer bestimmten Größenordnung aus einem filtrierbaren Gut herausgefiltert werden können. Insbesondere sollen Partikel aus einer Flüssigkeit, einer Emulsion o.dgl. herausgefiltert werden. Die gestellte Aufgabe wird gelöst, indem zumindest die das Filtergewebe bildende Lage mit schräg zu den Kett- und Schußfäden verlaufenden, im Abstand zueinander stehenden Wechselkreuzungen versehen ist.The invention has for its object to design a plate-shaped filter element of the type described in the introduction so that particles of a certain size can be filtered out of a filterable material. In particular, particles from a liquid, an emulsion or the like. be filtered out. The object is achieved in that at least the layer forming the filter fabric is provided with alternating crossings which are at a distance from one another and run obliquely to the warp and weft threads.
Die Größen der Maschen werden nunmehr nicht ausschließlich durch die Abstände zwischen den Kett- und Schußdrähten bestimmt, sondern es werden Zwickel gebildet, die von der viereckigen Form abweichen. Die Größe dieser Zwickel richtet sich demzufolge auch noch nach den Lagen der Wechselkreuzungen zu den Kett- und zu den Schußdrähten. Die Wechselkreuzungen tragen außerdem noch zur Sta- bilisierung des Filtergewebes bei, da sie ebenfalls aus Drähten bestehen.The sizes of the stitches are now not only determined by the distances between the warp and weft wires, but gussets are formed that deviate from the square shape. The size of this gusset therefore also depends on the positions of the alternating crossings to the warp and the weft wires. The interchangeable junctions also contribute to the stabilization of the filter fabric, since they also consist of wires.
In bevorzugter Ausführungsform verlaufen die Wechselkreuzungen zickzackför- mig, wobei jeder geradlinige Abschnitt sich über eine gleichbleibende Anzahl von Kettdrähten erstreckt. Durch den zickzackförmigen Verlauf der Wechselkreuzun- gen wird die Stabilität noch zusätzlich erhöht, so daß man davon ausgehen kann, daß die Standzeit des Filterelementes gegenüber den bekannten Ausführungen erhöht wird. Zweckmäßigerweise verlaufen die Wechselkreuzungen von den parallel und im Abstand zu den Kettdrähten verlaufenden Rändern, da sich jeder geradlinige Abschnitt der zickzackförmigen Wechselkreuzungen über eine gleichbleibende Anzahl von Kettdrähten erstreckt, wird eine gleichbleibende Maschengröße über die gesamte Filterfläche erzielt.In a preferred embodiment, the interchangeable intersections run in a zigzag shape, with each rectilinear section extending over a constant number of warp wires. Due to the zigzag shape of the interchangeability, the stability is further increased, so that it can be assumed that the service life of the filter element is increased compared to the known designs. The alternating crossings expediently run from the edges running parallel and at a distance from the warp wires, since each rectilinear section of the zigzag-shaped alternating intersections extends over a constant number of warp wires, a constant mesh size is achieved over the entire filter area.
In einer bevorzugten Ausführung ist vorgesehen, daß sich die geradlinigen Abschnitte der Wechselschußdrähte maximal über zwanzig Kettdrähte erstrecken.In a preferred embodiment it is provided that the straight sections of the interchangeable weft wires extend over a maximum of twenty warp wires.
In weiterer Ausgestaltung ist vorgesehen, daß die Bindungen der Kett- und der Schußdrähte eine ZZ-Sonderbindung ist. Dadurch ergeben sich günstige Verhältnisse für die Bindungen der Wechselkreuzungen. In einer bevorzugten Ausführung ist dabei vorgesehen, daß ein Seitenwechsel der Kettdrähte erfolgt, wenn von diesen eine bestimmte Anzahl von Schußdrähten übersprungen ist und diese Anzahl mit der von den Schußdrähten übersprungenen Kettdrähten übereinstimmt. Die Anzahl der übersprungenen Kettdrähte beträgt in einer speziellen Ausführungsform jeweils zwei Stück. Die jeweiligen an einer Seite form jeweils zwei Stück. Die jeweiligen an einer Seite liegenden Abschnitte der Kett- und Schußdrähte stehen von Kettdraht zu Kettdraht in einem Versatz zu einem Schußdraht. Die an einer Seite liegenden Abschnitte der Schußdrähte stehen ebenfalls in einem Versatz zueinander, der von Schußdraht zu Schußdraht ein Kettdraht ist. Die Durchmesser der Kettdrähte und der Schußdrähte können ja nachIn a further embodiment it is provided that the bindings of the warp and weft wires are special ZZ bindings. This results in favorable conditions for the bonds of the crossroads. In a preferred embodiment it is provided that the warp wires are changed sides when a certain number of weft wires have been skipped and this number matches the warp wires skipped by the weft wires. In a special embodiment, the number of skipped warp wires is two in each case. The respective on one side form two pieces each. The respective sections of the warp and weft wires lying on one side are offset from warp wire to warp wire to a weft wire. The sections of the weft wires lying on one side are also offset from one another, which is a warp wire from weft wire to weft wire. The diameter of the warp wires and the weft wires can vary
Ausführung übereinstimmen, sie können jedoch auch unterschiedlich sein. Die Durchmesser der die Wechselkreuzungen bildenden Drähte können mit den Durchmessern der Schußdrähte übereinstimmen oder davon abweichen. Es sind jedoch auch Ausführungen realisierbar, bei denen die Durchmesser der die Wech- selkreuzungen bildenden Drähte von den Durchmessern der Kettdrähte und derExecution match, but they can also be different. The diameters of the wires forming the interchangeable crossings can match or differ from the diameters of the weft wires. However, designs are also feasible in which the diameters of the wires forming the alternating crossings differ from the diameters of the warp wires and
Schußdrähte abweichen. Unabhängig von den Ausführungen ist vorgesehen, daß die die Wechselkreuzungen bildenden Drähte unter einem Winkel von 45° zu den Kettdrähten und zu den Schußdrähten verlaufen. Die die Wechselkreuzungen bildenden Drähte erstrecken sich dann über die gleiche Anzahl von Kett- und Schußdrähten. Für bestimmte Anwendungsfälle kann es erforderlich sein, daß zumWeft wires differ. Regardless of the design, it is provided that the wires forming the alternating crossings run at an angle of 45 ° to the warp wires and to the weft wires. The wires forming the alternating crossings then extend over the same number of warp and weft wires. For certain applications, it may be necessary for
Schutz des Filtergewebes das plattenförmige Filterelement ein Schutzgewebe aufweist, welches dem Filtergewebe zugeordnet ist. Ebenfalls kann es erforderlich sein, daß zur Stabilisierung des plattenförmigen Filterelementes dieses noch mit einem Stützgewebe versehen ist. Dabei kann es zweckmäßig sein, daß die Webart des Schutz- und des Stützgewebes der Webart des Filtergewebes entspricht. DieProtection of the filter fabric, the plate-shaped filter element has a protective fabric which is assigned to the filter fabric. It may also be necessary for the plate-shaped filter element to be provided with a supporting fabric in order to stabilize it. It may be appropriate that the weave of the protective and support fabric corresponds to the weave of the filter fabric. The
Maschenweite des Schutzgewebes ist bevorzugt größer als die des Filtergewebes. Für weitere Anwendungsfälle kann es erforderlich sein, daß das plattenförmige Filterelement auch noch mit einem Dränagegewebe ausgestattet ist. Dadurch wird die quantitative Filterleistung optimiert.Mesh size of the protective fabric is preferably larger than that of the filter fabric. For other applications, it may be necessary that the plate-shaped filter element is also equipped with a drainage fabric. This optimizes the quantitative filter performance.
Die in Rede stehenden plattenförmigen Filterelemente sind als feinmaschig anzusehen. Die metallischen Drahtgewebelagen werden durch Diffusion fest miteinander verbunden. Die in Rede stehenden plattenförmigen Filterelemente werden in Filterplatten und zylindrischen Filtern eingesetzt und eignen sich besonders gut für eine einseitige Belastung. Die das Filtergewebe bildende Lage wird bevorzugt nach der Webart BMT-ZZ gewebt. The plate-shaped filter elements in question are to be regarded as fine-meshed. The metallic wire mesh layers are firmly connected to one another by diffusion. The plate-shaped filter elements in question are used in filter plates and cylindrical filters and are particularly suitable for one-sided loading. The layer forming the filter fabric is preferably woven according to the BMT-ZZ weave.

Claims

Ansprüche Expectations
1. Plattenförmiges Filterelement, welches aus mehreren Lagen eines Drahtgewebes besteht, von denen mindestens eine Lage ein Filtergewebe ist, und bei dem jede Lage des Draht- und Filtergewebes in einer Bindungsart miteinander verbundene Kett- und Schußdrähte aufweist, dadurch gekennzeichnet, daß zumindest die das Filtergewebe bildende Lage mit schräg zu den Kett- und Schußfaden verlaufenden, im Abstand zueinander stehenden Wechselkreuzungen versehen ist.1. Plate-shaped filter element, which consists of several layers of a wire mesh, of which at least one layer is a filter fabric, and in which each layer of the wire and filter fabric in a weave has interconnected warp and weft wires, characterized in that at least that The layer forming the filter fabric is provided with alternating crossings which run at an angle to the warp and weft threads and are at a distance from one another.
2. Plattenförmiges Filterelement nach Anspruch 1, dadurch gekennzeichnet, daß die Wechselkreuzungen zickzackförmig verlaufen, wobei jeder geradlinige Abschnitt sich über eine gleichbleibende Anzahl von Kettfäden erstreckt.2. Plate-shaped filter element according to claim 1, characterized in that the interchangeable intersections run in a zigzag shape, each rectilinear section extending over a constant number of warp threads.
3. Plattenförmiges Filterelement nach Anspruch 2, dadurch gekennzeichnet, daß die Wechselkreuzungen von den parallel und im Abstand zu den Kettdrähten verlaufenden Rändern des plattenförmigen Filterelementes verlaufen.3. Plate-shaped filter element according to claim 2, characterized in that the alternating crossings of the edges of the plate-shaped filter element running parallel and at a distance from the warp wires.
4. Plattenförmiges Filterelement nach Anspruch 2, dadurch gekennzeichnet, daß jeder geradlinige Abschnitt jeder Wechselkreuzung sich über eine gleichbleibende Anzahl von Kettdrähten maximal jedoch über zwanzig Kettdrähte erstreckt,4. Plate-shaped filter element according to claim 2, characterized in that each rectilinear section of each interchange extends over a constant number of warp wires but at most over twenty warp wires,
5. Plattenförmiges Filterelement nach einem oder mehreren der vorhergehenden Ansprüche 1 bis 4, dadurch gekennzeichnet, daß die Bindung der Kett- und Schußdrähte eine ZZ-Sonderbindung ist.5. Plate-shaped filter element according to one or more of the preceding claims 1 to 4, characterized in that the binding of the warp and weft wires is a special ZZ weave.
6. Plattenförmiges Filterelement nach einem oder mehreren der vorhergehenden Ansprüche 1 bis 5, dadurch gekennzeichnet, daß nach Überspringen einer bestimmten Anzahl von Schußdrähten ein Seitenwechsel der Kettdrähte erfolgt und daß die Anzahl der jeweils übersprungenen Kett- und Schußdrähte übereinstimmt. 6. Plate-shaped filter element according to one or more of the preceding claims 1 to 5, characterized in that after skipping a certain number of weft wires, the warp wires change sides and that the number of warp and weft wires skipped corresponds.
7. Plattenförmiges Filterelement nach Anspruch 6, dadurch gekennzeichnet, daß die Anzahl der von den Schußdrähten übersprungenen Kettdrähte zwei Kettdrähte beträgt.7. Plate-shaped filter element according to claim 6, characterized in that the number of warp wires skipped by the weft wires is two warp wires.
8. Plattenförmiges Filterelement nach einem oder mehreren der vorhergehenden Ansprüche 1 bis 7, dadurch gekennzeichnet, daß die an einer Seite des plattenförmigen Filterelementes liegenden Abschnitte der Kett- und Schußdrähte von Kettdraht zu Kettdraht in einem Versatz von einem Schußdraht stehen.8. Plate-shaped filter element according to one or more of the preceding claims 1 to 7, characterized in that the lying on one side of the plate-shaped filter element sections of the warp and weft wires from warp wire to warp wire are in an offset from a weft wire.
9. Plattenförmiges Filterelement nach einem oder mehreren der vorhergehenden Ansprüche 1 bis 8, dadurch gekennzeichnet, daß die an einer Seite liegenden Abschnitte der Schußdrähte in einem Versatz zueinander stehen, der von Schußdraht zu Schußdraht jeweils ein Kettdraht ist.9. A plate-shaped filter element according to one or more of the preceding claims 1 to 8, characterized in that the sections of the weft wires lying on one side are offset from one another, which is a warp wire from weft wire to weft wire.
10. Plattenförmiges Filterelement nach einem oder mehreren der vorhergehenden Ansprüche 1 bis 9, dadurch gekennzeichnet, daß die Durchmesser der Kett- und Schußdrähte übereinstimmen oder annähernd übereinstimmen.10. Plate-shaped filter element according to one or more of the preceding claims 1 to 9, characterized in that the diameters of the warp and weft wires correspond or approximately match.
11. Plattenförmiges Filterelement nach einem oder mehreren der vorhergehenden Ansprüche 1 bis 9, dadurch gekennzeichnet, daß die Durchmesser der Kettdrähte und der Schußdrähte unterschiedlich sind.11. Plate-shaped filter element according to one or more of the preceding claims 1 to 9, characterized in that the diameters of the warp wires and the weft wires are different.
12. Plattenförmiges Filterelement nach einem oder mehreren der vorhergehenden Ansprüche 1 bis 11, dadurch gekennzeichnet, daß die Durchmesser der die Wechselkreuzungen bildenden Drähte mit den Durchmessern der Schußdrähte und/oder der Kettdrähte übereinstimmen oder annähernd übereinstimmen oder voneinander abweichen.12. Plate-shaped filter element according to one or more of the preceding claims 1 to 11, characterized in that the diameters of the wires forming the interchangements match or approximately match or differ from one another with the diameters of the weft wires and / or the warp wires.
13. Plattenförmiges Filterelement nach einem oder mehreren der vorhergehenden Ansprüche 1 bis 12, dadurch gekennzeichnet, daß die die Wechselkreuzun- gen bildenden Dr hte unter einem Winkel von 45° zu den Kettdrähten und den Schußdrähten verlaufen.13. Plate-shaped filter element according to one or more of the preceding claims 1 to 12, characterized in that the the crossover the forming wires run at an angle of 45 ° to the warp and weft wires.
14. Plattenförmiges Filterelement nach einem oder mehreren der vorhergehenden Ansprüche 1 bis 13, dadurch gekennzeichnet, daß das Filterelement ein Schutzgewebe aufweist, welches der das Filtergewebe bildenden Lage zugeordnet ist.14. Plate-shaped filter element according to one or more of the preceding claims 1 to 13, characterized in that the filter element has a protective fabric which is assigned to the layer forming the filter fabric.
15. Plattenförmiges Filterelement nach einem oder mehreren der vorhergehenden Ansprüche 1 bis 14, dadurch gekennzeichnet, daß das Filterelement eine Lage eines Stützgewebes aufweist.15. Plate-shaped filter element according to one or more of the preceding claims 1 to 14, characterized in that the filter element has a layer of a supporting fabric.
16. Plattenförmiges Filterelement nach Anspruch 14 oder 15, dadurch gekennzeichnet, daß die Webart des Schutz- und/oder des Stützgewebes der Webart des Filtergewebes entspricht.16. Plate-shaped filter element according to claim 14 or 15, characterized in that the weave of the protective and / or support fabric corresponds to the weave of the filter fabric.
17. Plattenförmiges Filterelement nach Anspruch 15, dadurch gekennzeichnet, daß die Maschenweite des Stützgewebes größer ist als die des Filtergewebes.17. Plate-shaped filter element according to claim 15, characterized in that the mesh size of the support fabric is larger than that of the filter fabric.
18. Plattenförmiges Filterelement nach einem oder mehreren der vorhergehenden Ansprüche 1 bis 10, dadurch gekennzeichnet, daß das Filterelement eine Lage aus einem Dränagegewebe aufweist. 18. Plate-shaped filter element according to one or more of the preceding claims 1 to 10, characterized in that the filter element has a layer made of a drainage fabric.
EP04733249A 2003-08-02 2004-05-15 Plate filter element Withdrawn EP1654074A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE2003211945 DE20311945U1 (en) 2003-08-02 2003-08-02 Plate-shaped filter element
PCT/EP2004/005237 WO2005021169A1 (en) 2003-08-02 2004-05-15 Plate filter element

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EP1654074A1 true EP1654074A1 (en) 2006-05-10

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EP04733249A Withdrawn EP1654074A1 (en) 2003-08-02 2004-05-15 Plate filter element

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US (1) US7264645B2 (en)
EP (1) EP1654074A1 (en)
DE (1) DE20311945U1 (en)
WO (1) WO2005021169A1 (en)

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US7264645B2 (en) 2007-09-04
US20060150600A1 (en) 2006-07-13
WO2005021169A1 (en) 2005-03-10
DE20311945U1 (en) 2004-12-09

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