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EP1411166A2 - Device for papermaking equipment with at least one screen belt - Google Patents

Device for papermaking equipment with at least one screen belt Download PDF

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Publication number
EP1411166A2
EP1411166A2 EP20030450023 EP03450023A EP1411166A2 EP 1411166 A2 EP1411166 A2 EP 1411166A2 EP 20030450023 EP20030450023 EP 20030450023 EP 03450023 A EP03450023 A EP 03450023A EP 1411166 A2 EP1411166 A2 EP 1411166A2
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EP
European Patent Office
Prior art keywords
support
stripping
screen belt
belt
elements
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
EP20030450023
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German (de)
French (fr)
Other versions
EP1411166A3 (en
EP1411166B1 (en
Inventor
Klaus Bartelmuss
Heinz Bartelmuss
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Individual
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Individual
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Priority to AT03450023T priority Critical patent/ATE298381T1/en
Publication of EP1411166A2 publication Critical patent/EP1411166A2/en
Publication of EP1411166A3 publication Critical patent/EP1411166A3/en
Application granted granted Critical
Publication of EP1411166B1 publication Critical patent/EP1411166B1/en
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Classifications

    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
    • D21F1/00—Wet end of machines for making continuous webs of paper
    • D21F1/48—Suction apparatus
    • D21F1/52—Suction boxes without rolls
    • D21F1/523—Covers thereof
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
    • D21F1/00—Wet end of machines for making continuous webs of paper
    • D21F1/48—Suction apparatus
    • D21F1/483—Drainage foils and bars

Definitions

  • the subject invention relates to a device for at least one a screen belt having plant for paper production, which for supporting of the screen belt or for stripping the passing through the screen belt, emerging from the paper pulp or paper tape located on this Water with a plurality of in the direction of movement of the screen belt mutually spaced support or stripping is formed of ceramic material, at the top of the screen belt comes to the plant.
  • a first area of the Siebbandstrom enters the contained in the pulp Water in particular due to gravity through the wire through.
  • it is for the extraction of water contained in the paper tape water or moisture contained therein required to apply vacuum to the screen belt.
  • the support or squeegee brought to the plant with great pressure. In doing so on the To be able to absorb the forces exerted on the moving belt, the support or squeegee be arranged at a close distance next to each other.
  • the support or squeegee is on the one hand from the Strainer discharged water and comes on the other hand on the Sieve tape applied by the vacuum boxes to the effect of, by which contains the water contained in the pulp or paper tape or the Moisture is sucked off. Due to the support or squeegee must two conditions are met, which, however, are contradictory are. On the one hand, these strips should be arranged as close together as possible be to the required support of the screen belt, in particular in those areas where it is subjected to vacuum, too cause. On the other hand, the support or squeegee in as possible are spaced apart from each other to allow enough room for the derivation of the passing through the sieve belt water and further the largest possible spaces in which the vacuum on the screen belt for Effect comes to achieve.
  • the subject invention is therefore the object of a device through which these demands in the best possible Way is met.
  • This is inventively achieved in that a plurality of supporting or stripping elements is provided, which extending in a plurality of across the width of the screen belt Rows, with multiple elements in each row.
  • the screen belt is adequately supported, this good support being required in particular in those areas in which large vacuum forces are exerted on the wire belt.
  • the support or stripping elements are arranged offset in two in the direction of movement of the wire belt successive rows against each other.
  • a carrying device e.g. in Form of parallel support rails, provided on which the support or stripping elements are attached and from which these elements protrude.
  • the carrying device can be attached to a support frame be within which the stripping or support elements are located.
  • the upper edge of the support frame may at least approximate in the Surface of the top of the support or stripping elements are located. This is in any case required if the support frame associated with a suction box is, as a result, the required seal against the wire is effected.
  • the upper edge of the support frame may be at a distance below the surface of the top of the supporting or stripping are located. This training is possible if in the field the support and stripping applied to the screen belt no vacuum becomes.
  • supporting or stripping elements are at their to the screen belt coming to the plant tops with one opposite to the direction of movement formed the Siebbandes projecting, wedge-shaped extension.
  • This training improves the wiping effect of the elements.
  • the supporting or stripping elements can be curved on their upper sides his.
  • the device shown in Fig. 1 consists of a support frame 1, which e.g. intended for mounting on a suction box.
  • This support frame 1 is at its top with a support 11 made of ceramic material formed on which an unillustrated screen belt a system for Paper production comes to the plant.
  • the screen belt is placed over the support frame 1 in the direction of arrow A moved away.
  • the support frame is 1 formed with a plurality of support bars 12, on which upward protruding support or stripping elements 2 are attached.
  • the top of the Support and stripping 2 is located in the plane of the top of Edition 11.
  • the support frame 1 and the plurality of support or stripping elements 2 extend it is over the entire width of the screen belt.
  • the support and Scraper elements 2 are in a plurality of transverse to the direction of movement A.
  • the Siebbandes aligned rows closely next to each other and behind each other arranged, being between the multiplicity of side by side and behind each other arranged supporting and stripping 2 a very large number of interspaces, by which on the one hand from the on Sieve belt located pulp or paper tape emerging water passes and on the other hand that of the suction box on the pulp or the Paper tape applied vacuum comes into effect.
  • FIG 2 embodiment of a device according to the invention differs from the embodiment shown in Figure 1 in that the support and stripping 2 another spatial Have design. These are in against the direction of movement A of the screen belt is formed wedge-shaped tapered projections 21, by which the wiping action with respect to that through the wire belt passing water is improved.
  • the device shown in Figure 3 differs from that shown in Figure 2 Device characterized in that the stripping elements 2a on the Support frame 1a protrude or that the support frame 1a not with a the screen belt is formed to the plant coming top. Such Device is then deployed, if through this only one Supporting the screen belt and a stripping effect is to be achieved whereas no vacuum is applied to the screen belt.
  • FIG 4 eight different embodiments of support and Stripping elements 2 shown. These representations show that the support and stripping 2 have a variety of configurations can. These can be formed with flat or curved surfaces his. In addition, they can counter with the direction of movement of the Siebbandes protruding projections 21 may be provided.
  • the essential feature is the device is that a very large number of supporting and stripping elements 2 is provided, through which the required support of Siebbandes is effected and through which the passing through the screen belt Water is stripped, but also for the derivative of the water and for the action of vacuum on the screen belt a very large area is available, creating a very effective admission is made possible with vacuum.

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  • Diaphragms For Electromechanical Transducers (AREA)

Abstract

A papermaking assembly incorporates a travelling screen with a frame under a ceramic rim. The frame has a series of parallel cross-members (12), each bearing a series of combined wipers/supports arranged in regular arrays. Each row of wipers/supports is laterally transposed with respect to the adjacent row. The wiper/supports are fixed to the parallel cross member below. The cross-members are fixed to the surrounding frame. The wiper/support top surfaces are domed and approx. in-line with the ceramic surround.

Description

Die gegenständliche Erfindung betrifft eine Vorrichtung für eine mindestens ein Siebband aufweisende Anlage zur Papiererzeugung, welche zum Abstützen des Siebbandes bzw. zum Abstreifen des durch das Siebband hindurchtretenden, aus dem auf diesem befindlichen Papierbrei bzw. Papierband austretenden Wassers mit einer Mehrzahl von in Bewegungsrichtung des Siebbandes voneinander im Abstand befindlichen Abstütz- bzw. Abstreifelementen aus keramischen Material ausgebildet ist, an deren Oberseite das Siebband zur Anlage kommt.The subject invention relates to a device for at least one a screen belt having plant for paper production, which for supporting of the screen belt or for stripping the passing through the screen belt, emerging from the paper pulp or paper tape located on this Water with a plurality of in the direction of movement of the screen belt mutually spaced support or stripping is formed of ceramic material, at the top of the screen belt comes to the plant.

Bekannte derartige Siebbandanlagen weisen eine Mehrzahl von in Bewegungsrichtung des Siebbandes hintereinander angeordneten Leisten aus keramischem Material auf, welche sich über die gesamte Breite des Siebbandes erstrecken und an deren Oberseite das Siebband zur Anlage kommt. Diese Leisten dienen einerseits dazu, das Siebband abzustützen und andererseits dazu, das aus dem am Siebband befindlichen Papierbrei durch das Siebband hindurch gelangende Wasser von der Unterseite des Siebbandes abzustreifen.Known such Siebbandanlagen have a plurality of in the direction of movement of the screen belt successively arranged strips of ceramic Material on which extends over the entire width of the screen belt extend and at the top of the screen belt comes to rest. This Lasts serve on the one hand to support the screen belt and on the other in addition, from the paper pulp on the sieve belt through the sieve belt passing water from the underside of the screen belt.

In einem ersten Bereich der Siebbandanlage tritt das im Papierbrei enthaltene Wasser insbesondere aufgrund der Schwerkraft durch das Siebband hindurch. In den folgenden Bereichen ist es jedoch zur Absaugung des Wassers im Papierband enthaltenen Wassers bzw. der in diesem befindlichen Feuchtigkeit erforderlich, das Siebband mit Vakuum zu beaufschlagen. Hierfür sind in den weiteren Bereichen des Siebbandes Saugkästen vorgesehen. Durch das auf das Siebband aufgebrachte Vakuum wird dieses an die Abstütz- bzw. Abstreifleisten mit großem Druck zur Anlage gebracht. Um die dabei auf das Siebband ausgeübten Kräfte aufnehmen zu können, müssen die Abstütz- bzw. Abstreifleisten in engem Abstand nebeneinander angeordnet sein.In a first area of the Siebbandanlage enters the contained in the pulp Water in particular due to gravity through the wire through. In the following areas, however, it is for the extraction of water contained in the paper tape water or moisture contained therein required to apply vacuum to the screen belt. For this are provided in the other areas of the wire belt suction boxes. By the Applied to the wire belt vacuum this is the support or squeegee brought to the plant with great pressure. In doing so on the To be able to absorb the forces exerted on the moving belt, the support or squeegee be arranged at a close distance next to each other.

Zwischen den Abstütz- bzw. Abstreifleisten wird einerseits das aus dem Siebband austretende Wasser abgeführt und kommt andererseits auf das Siebband das von den Saugkästen aufgebrachte Vakuum zur Wirkung, durch welches das im Papierbrei bzw. Papierband enthaltene Wasser bzw. die Feuchtigkeit abgesaugt wird. Durch die Abstütz- bzw. Abstreifleisten müssen dabei zwei Bedingungen erfüllt werden, welche jedoch in sich widersprüchlich sind. Einerseits sollen diese Leisten möglichst eng aneinander angeordnet sein, um die erforderliche Abstützung des Siebbandes, insbesondere in denjenigen Bereichen, in welchen dieses mit Vakuum beaufschlagt wird, zu bewirken. Andererseits sollen sich die Abstütz- bzw. Abstreifleisten in möglichst großen Abständen voneinander befinden, um ausreichend Raum für die Ableitung des durch das Siebband hindurchtretenden Wassers und weiters möglichst große Räume, in welchen das Vakuum auf das Siebband zur Wirkung kommt, zu erzielen.Between the support or squeegee is on the one hand from the Strainer discharged water and comes on the other hand on the Sieve tape applied by the vacuum boxes to the effect of, by which contains the water contained in the pulp or paper tape or the Moisture is sucked off. Due to the support or squeegee must two conditions are met, which, however, are contradictory are. On the one hand, these strips should be arranged as close together as possible be to the required support of the screen belt, in particular in those areas where it is subjected to vacuum, too cause. On the other hand, the support or squeegee in as possible are spaced apart from each other to allow enough room for the derivation of the passing through the sieve belt water and further the largest possible spaces in which the vacuum on the screen belt for Effect comes to achieve.

Der gegenständlichen Erfindung liegt somit die Aufgabe zugrunde, eine Vorrichtung zu schaffen, durch welche diesen Forderungen in bestmöglicher Weise entsprochen wird. Dies wird erfindungsgemäß dadurch erzielt, daß eine Vielzahl von Abstütz- bzw. Abstreifelementen vorgesehen ist, welche sich in einer Mehrzahl von sich über die Breite des Siebbandes erstreckenden Reihen befinden, wobei sich in jeder Reihe mehrere Elemente befinden.The subject invention is therefore the object of a device through which these demands in the best possible Way is met. This is inventively achieved in that a plurality of supporting or stripping elements is provided, which extending in a plurality of across the width of the screen belt Rows, with multiple elements in each row.

Durch die Vielzahl der nebeneinander und hintereinander angeordneten Abstütz- bzw. Abstreifelemente wird einerseits gewährleistet, daß das Siebband hinreichend abgestützt wird, wobei diese gute Abstützung insbesondere in denjenigen Bereichen erforderlich ist, in welchen auf das Siebband große Vakuumkräfte ausgeübt werden. Andererseits befinden sich zwischen der Vielzahl der nebeneinander und hintereinander angeordneten Abstütz- bzw. Abstreifelemente hinreichend viele Zwischenräume, durch welche das im Papierbrei bzw. im Papierband enthaltene Wasser hindurchtritt bzw. in welchem auf das Siebband die von den Vakuumkästen auf dieses aufgebrachten Saugkräfte zur Wirkung kommen.
Vorzugsweise sind die Abstütz- bzw. Abstreifelemente in zwei in Bewegungsrichtung des Siebbandes aufeinanderfolgenden Reihen gegeneinander versetzt angeordnet.On account of the multiplicity of supporting and stripping elements arranged next to one another and behind one another, it is ensured on the one hand that the screen belt is adequately supported, this good support being required in particular in those areas in which large vacuum forces are exerted on the wire belt. On the other hand, there are between the plurality of side by side and consecutively arranged supporting or stripping sufficiently many spaces through which the water contained in the pulp or paper tape passes or in which come on the sieve of the vacuum boxes applied to this suction forces effect ,
Preferably, the support or stripping elements are arranged offset in two in the direction of movement of the wire belt successive rows against each other.

Nach einer bevorzugten Ausführungsform ist eine Trageinrichtung, z.B. in Form von parallel angeordneten Tragleisten, vorgesehen, an welchen die Abstütz- bzw. Abstreifelemente befestigt sind und von welcher diese Elemente abragen. Dabei kann die Trageinrichtung an einem Tragrahmen befestigt sein, innerhalb dessen sich die Abstreif- bzw. Abstützelemente befinden. Weiters kann sich der obere Rand des Tragrahmens zumindest angenähert in der Fläche der Oberseite der Abstütz- bzw. Abstreifelemente befinden. Dies ist jedenfalls dann erforderlich, wenn der Tragrahmen einem Saugkasten zugeordnet ist, da hierdurch die erforderliche Abdichtung gegenüber dem Siebband bewirkt wird. Alternativ dazu kann sich der obere Rand des Tragrahmens im Abstand unterhalb der Fläche der Oberseite der Abstütz- bzw. Abstreifelemente befinden. Diese Ausbildung ist dann möglich, wenn im Bereich der Abstütz- und Abstreifelemente auf das Siebband kein Vakuum aufgebracht wird.According to a preferred embodiment, a carrying device, e.g. in Form of parallel support rails, provided on which the support or stripping elements are attached and from which these elements protrude. In this case, the carrying device can be attached to a support frame be within which the stripping or support elements are located. Furthermore, the upper edge of the support frame may at least approximate in the Surface of the top of the support or stripping elements are located. This is in any case required if the support frame associated with a suction box is, as a result, the required seal against the wire is effected. Alternatively, the upper edge of the support frame may be at a distance below the surface of the top of the supporting or stripping are located. This training is possible if in the field the support and stripping applied to the screen belt no vacuum becomes.

Vorzugsweise sind Abstütz- bzw. Abstreifelemente an ihren an das Siebband zur Anlage kommenden Oberseiten mit einem entgegen der Bewegungsrichtung des Siebbandes vorstehenden, keilförmigen Fortsatz ausgebildet. Durch diese Ausbildung wird die Abstreifwirkung der Elemente verbesert. Zudem können die Abstütz- bzw. Abstreifelemente an ihren Oberseiten gewölbt ausgebildet sein.Preferably, supporting or stripping elements are at their to the screen belt coming to the plant tops with one opposite to the direction of movement formed the Siebbandes projecting, wedge-shaped extension. By This training improves the wiping effect of the elements. moreover For example, the supporting or stripping elements can be curved on their upper sides his.

Der Gegenstand der Erfindung ist nachstehend anhand eines in der Zeichnung dargestellten Ausführungsbeispieles näher erläutert. Es zeigen:

Fig.1
eine erste Ausführungsform einer erfindungsgemäßen Vorrichtung, in axonometrischer Darstellung,
Fig.2
eine zweite Ausführungsform einer erfindungsgemäßen Vorrichtung, in axonometrischer Darstellung;
Fig.3
eine dritte Ausführungsform einer erfindungsgemäßen Vorrichtung, in axonometrischer Darstellung;
Fig.4.
unterschiedliche Ausführungsformen von Abstütz- bzw. Abstreifelementen, jeweils in axonometrischer Darstellung; und
Fig.5
ein an einer Tragleiste befestigtes Abstützelement, in axialem Schnitt.
The object of the invention is explained below with reference to an embodiment shown in the drawing. Show it:
Fig.1
A first embodiment of a device according to the invention, in axonometric representation,
Fig.2
a second embodiment of a device according to the invention, in axonometric representation;
Figure 3
a third embodiment of a device according to the invention, in axonometric representation;
Figure 4.
different embodiments of supporting or stripping elements, each in axonometric representation; and
Figure 5
a fixed to a support bar supporting element, in axial section.

Die in Fig. 1 dargestellte Vorrichtung besteht aus einem Tragrahmen 1, welcher z.B. zur Montage auf einem Saugkasten bestimmt ist. Dieser Tragrahmen 1 ist an seiner Oberseite mit einer Auflage 11 aus keramischem Material ausgebildet, an welchem ein nicht dargestelltes Siebband einer Anlage zur Papiererzeugung zur Anlage kommt. Das Siebband wird über den Tragrahmen 1 in Richtung des Pfeiles A hinwegbewegt. Weiters ist der Tragrahmen 1 mit einer Mehrzahl von Tragleisten 12 ausgebildet, an welchen nach oben abragende Abstütz- bzw. Abstreifelemente 2 befestigt sind. Die Oberseite der Abstütz- und Abstreifelemente 2 befindet sich in der Ebene der Oberseite der Auflage 11.The device shown in Fig. 1 consists of a support frame 1, which e.g. intended for mounting on a suction box. This support frame 1 is at its top with a support 11 made of ceramic material formed on which an unillustrated screen belt a system for Paper production comes to the plant. The screen belt is placed over the support frame 1 in the direction of arrow A moved away. Furthermore, the support frame is 1 formed with a plurality of support bars 12, on which upward protruding support or stripping elements 2 are attached. The top of the Support and stripping 2 is located in the plane of the top of Edition 11.

Der Tragrahmen 1 und die Vielzahl der Abstütz- bzw. Abstreifelemente 2 erstrecken sich dabei über die gesamte Breite des Siebbandes. Die Abstütz- und Abstreifelemente 2 sind in einer Vielzahl von quer zur Bewegungsrichtung A des Siebbandes ausgerichteten Reihen dicht nebeneinander und hintereinander angeordnet, wobei zwischen der Vielzahl der nebeneinander und hintereinander angeordneten Abstütz- und Abstreifelemente 2 eine sehr große Anzahl von Zwischenräumen besteht, durch welche einerseits das aus dem am Siebband befindlichen Papierbrei bzw. Papierband austretende Wasser hindurchtritt und andererseits das vom Saugkasten auf den Papierbrei bzw. das Papierband ausgeübte Vakuum zur Wirkung kommt. Obgleich dadurch die wirksame Fläche der zwischen den Abstütz- und Abstreifelementen 2 befindlichen Zwischenräume sehr groß ist, wodurch der Durchtritt des Wassers nicht behindert ist und weiters eine sehr wirksame Beaufschlagung des Siebbandes mit Vakuum gewährleistet ist, wird aufgrund der Vielzahl der Elemente 2 die erforderliche Abstützung des Siebbandes gewährleistet. Es wird hierzu darauf verwiesen, daß diese Abstützung insbesondere in denjenigen Bereichen der Bewegungsbahn des Siebbandes erforderlich ist, in welchen auf das am Siebband aufliegende Papierband zur Entfernung der in diesem befindlichen Feuchtigkeit ein sehr hohes Vakuum aufbebracht werden muß.The support frame 1 and the plurality of support or stripping elements 2 extend it is over the entire width of the screen belt. The support and Scraper elements 2 are in a plurality of transverse to the direction of movement A. the Siebbandes aligned rows closely next to each other and behind each other arranged, being between the multiplicity of side by side and behind each other arranged supporting and stripping 2 a very large number of interspaces, by which on the one hand from the on Sieve belt located pulp or paper tape emerging water passes and on the other hand that of the suction box on the pulp or the Paper tape applied vacuum comes into effect. Although thereby the effective area of the located between the support and stripping 2 Interspaces is very large, reducing the passage of water is not hindered and furthermore a very effective admission of the Sieve belt is guaranteed with vacuum, due to the large number of Elements 2 ensures the required support of the screen belt. It It is pointed out that this support especially in those Areas of the trajectory of the screen belt is required, in which on the paper tape resting on the sieve belt to remove it in this moisture is very high vacuum applied got to.

Um über die Breite des Siebbandes eine gleichmäßige Abstützung und Abstreifwirkung zu erzielen, sind die in Bewegungsrichtung des Siebbandes in aufeinanderfolgenden Reihen befindlichen Abstütz- und Abstreifelemente 2 gegeneinander quer versetzt angeordnet.Over the width of the screen belt a uniform support and wiping action To achieve in the direction of movement of the screen belt in consecutive rows located support and stripping 2 arranged offset transversely to each other.

Das in Fig.2 dargestellte Ausführungsbeispiel einer erfindungsgemäßen Vorrichtung unterscheidet sich von dem in Fig.1 dargestellten Ausführungsbeispiel dadurch, daß die Abstütz- und Abstreifelemente 2 eine andere räumliche Gestaltung aufweisen. Diese sind mit in entgegen der Bewegungsrichtung A des Siebbandes sich keilförmig verjüngenden Fortsätzen 21 ausgebildet, durch welche die Abstreifwirkung in Bezug auf das durch das Siebband hindurchtretende Wasser verbessert wird. The illustrated in Figure 2 embodiment of a device according to the invention differs from the embodiment shown in Figure 1 in that the support and stripping 2 another spatial Have design. These are in against the direction of movement A of the screen belt is formed wedge-shaped tapered projections 21, by which the wiping action with respect to that through the wire belt passing water is improved.

Die in Fig.3 dargestellte Vorrichtung unterscheidet sich von der in Fig.2 dargestellten Vorrichtung dadurch, daß die Abstreifelemente 2a über den Tragrahmen 1a hinausragen bzw. daß der Tragrahmen 1a nicht mit einer an das Siebband zur Anlage kommenden Oberseite ausgebildet ist. Eine derartige Vorrichtung wird dann zum Einsatz gebracht, wenn durch diese nur eine Abstützung des Siebbandes und eine Abstreifwirkung erzielt werden soll, wogegen auf das Siebband kein Vakuum aufgebracht wird.The device shown in Figure 3 differs from that shown in Figure 2 Device characterized in that the stripping elements 2a on the Support frame 1a protrude or that the support frame 1a not with a the screen belt is formed to the plant coming top. Such Device is then deployed, if through this only one Supporting the screen belt and a stripping effect is to be achieved whereas no vacuum is applied to the screen belt.

In Fig.4 sind acht unterschiedliche Ausführungsformen von Abstütz- und Abstreifelementen 2 dargestellt. Durch diese Darstellungen wird gezeigt, daß die Abstütz- und Abstreifelemente 2 eine Vielzahl von Ausbildungen aufweisen können. Diese können mit ebenen oder mit gewölbten Oberflächen ausgebildet sein. Zudem können sie mit entgegen der Bewegungsrichtung des Siebbandes vorstehenden Fortsätzen 21 versehen sein.In Figure 4 eight different embodiments of support and Stripping elements 2 shown. These representations show that the support and stripping 2 have a variety of configurations can. These can be formed with flat or curved surfaces his. In addition, they can counter with the direction of movement of the Siebbandes protruding projections 21 may be provided.

Wie dies aus Fig.5 ersichtlich ist, kann die Befestigung der Abstütz- und Abstreifelemente 2 auf den Tragleisten 12 dadurch erfolgen, daß diese an ihrer Unterseite mit einem Sackloch 22 ausgebildet sind, in welchem eine Gewindehülse 23 befestigt, insbesondere verklebt, ist, wobei in die Gewindehülse 23 eine die Tragleiste 12 durchsetzende Schraube 24 eingeschraubt ist.As can be seen from Fig.5, the attachment of the support and stripping elements 2 done on the support bars 12 characterized in that these on their Bottom with a blind hole 22 are formed, in which a threaded sleeve 23 attached, in particular glued, is, wherein in the threaded sleeve 23, a support bar 12 passing screw 24 is screwed.

Wie dies vorstehend dargelegt worden ist, besteht das wesentliche Merkmal der Vorrichtung darin, daß eine sehr große Anzahl von Abstütz- und Abstreifelementen 2 vorgesehen ist, durch welche die erforderliche Abstützung des Siebbandes bewirkt wird und durch welche das durch das Siebband hindurchtretende Wasser abgestreift wird, wobei jedoch zudem für die Ableitung des Wassers und für das Einwirken von Vakuum auf das Siebband eine sehr große Fläche zur Verfügung steht, wodurch eine sehr wirksame Beaufschlagung mit Vakuum ermöglicht wird.As stated above, the essential feature is the device is that a very large number of supporting and stripping elements 2 is provided, through which the required support of Siebbandes is effected and through which the passing through the screen belt Water is stripped, but also for the derivative of the water and for the action of vacuum on the screen belt a very large area is available, creating a very effective admission is made possible with vacuum.

Claims (8)

Vorrichtung für eine mindestens ein Siebband aufweisende Anlage zur Papiererzeugung, welche zum Abstützen des Siebbandes bzw. zum Abstreifen des durch das Siebband hindurchtretenden, aus dem auf diesem befindlichen Papierbrei bzw. Papierband austretenden Wassers mit einer Mehrzahl von in Bewegungsrichtung des Siebbandes voneinander im Abstand befindlichen Abstütz- bzw. Abstreifelementen (2) aus keramischen Material ausgebildet ist, an deren Oberseiten das Siebband zur Anlage kommt, dadurch gekennzeichnet, daß eine Vielzahl von Abstütz- bzw. Abstreifelementen (2) vorgesehen ist, welche sich in einer Mehrzahl von sich über die Breite des Siebbandes erstreckenden Reihen befinden, wobei sich in jeder Reihe mehrere Elemente befinden.Device for producing at least one screen belt plant for paper production, which for supporting the screen belt or for stripping passing through the screen belt, emerging from the paper pulp or paper belt thereon emerging water with a plurality of mutually spaced in the direction of movement of the wire belt support - Of scraper elements (2) is formed of ceramic material, on the upper sides of the screen belt comes to rest, characterized in that a plurality of supporting or stripping elements (2) is provided, which in a plurality of across the width of the screen belt extending rows, wherein there are several elements in each row. Vorrichtung nach Patentanspruch 1, dadurch gekennzeichnet, daß die in zwei in Bewegungsrichtung des Siebbandes aufeinanderfolgenden Reihen befindlichen Abstütz- und Abstreifelemente (2) bezogen auf die Bewegungsrichtung des Siebbandes gegeneinander versetzt sind.Device according to Patent Claim 1, characterized in that the support and stripping elements (2) located in two successive rows in the direction of movement of the screen belt are offset relative to one another relative to the direction of movement of the screen belt. Vorrichtung nach einem der Patentansprüche 1 und 2, dadurch gekennzeichnet, daß eine Trageinrichtung, z.B. in Form von parallel angeordneten Tragleisten (12), vorgesehen ist, an welchen die Abstütz- bzw. Abstreifelemente (2) befestigt sind und von welcher die Abstütz- und Abstreifelemente (2) abragen.Device according to one of the claims 1 and 2, characterized in that a carrying device, for example in the form of parallel support strips (12) is provided, to which the support or stripping elements (2) are fixed and from which the support and Protrude stripping elements (2). Vorrichtung nach einem der Patentansprüche 1 bis 3, dadurch gekennzeichnet, daß die Trageinrichtung (11) an einem Tragrahmen (1) befestigt ist, innerhalb dessen sich die Abstreif- bzw. Abstützelemente (2) befinden.Device according to one of the claims 1 to 3, characterized in that the carrying device (11) is fastened to a supporting frame (1) within which the stripping or supporting elements (2) are located. Vorrichtung nach Patentanspruch 4, dadurch gekennzeichnet, daß sich der obere Rand (11) des Tragrahmens (1) zumindest angenähert in der Fläche der Oberseite der Abstütz- bzw. Abstreifelemente (2) befindet. Device according to claim 4, characterized in that the upper edge (11) of the support frame (1) is at least approximately in the area of the upper side of the support or stripping elements (2). Vorrichtung nach Patentanspruch 4, dadurch gekennzeichnet, daß sich der obere Rand des Tragrahmens (1) im Abstand unterhalb der Fläche der Oberseite der Abstütz- bzw. Abstreifelemente (2) befindet.Device according to claim 4, characterized in that the upper edge of the support frame (1) is located at a distance below the surface of the upper side of the support or stripping elements (2). Vorrichtung nach einem der Patentansprüche 1 bis 6, dadurch gekennzeichnet, daß Abstütz- bzw. Abstreifelemente (2) an ihren an das Siebband zur Anlage kommenden Oberseiten mit einem entgegen der Bewegungsrichtung des Siebbandes vorstehenden, keilförmigen Fortsatz (21) ausgebildet sind.Device according to one of the claims 1 to 6, characterized in that support or stripping elements (2) are formed on their upper sides coming into abutment against the wire belt with a wedge-shaped projection (21) protruding counter to the direction of movement of the wire belt. Vorrichtung nach einem der Patentansprüche 1 bis 7 dadurch gekennzeichnet, daß Abstütz- bzw. Abstreifelemente (2) an ihren Oberseiten gewölbt ausgebildet sind.Device according to one of the claims 1 to 7, characterized in that supporting or stripping elements (2) are curved on their upper sides.
EP03450023A 2002-10-17 2003-01-23 Device for papermaking equipment with at least one screen belt Expired - Lifetime EP1411166B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT03450023T ATE298381T1 (en) 2002-10-17 2003-01-23 DEVICE FOR A PAPER PRODUCING SYSTEM HAVING AT LEAST ONE SCREEN BELT

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT0158202A AT412657B (en) 2002-10-17 2002-10-17 DEVICE FOR A PAPER GENERATION PLANT AT LEAST ONE SIEVE BAND
AT20021582 2002-10-17

Publications (3)

Publication Number Publication Date
EP1411166A2 true EP1411166A2 (en) 2004-04-21
EP1411166A3 EP1411166A3 (en) 2004-05-12
EP1411166B1 EP1411166B1 (en) 2005-06-22

Family

ID=32034608

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03450023A Expired - Lifetime EP1411166B1 (en) 2002-10-17 2003-01-23 Device for papermaking equipment with at least one screen belt

Country Status (7)

Country Link
US (1) US6875313B2 (en)
EP (1) EP1411166B1 (en)
JP (1) JP4535687B2 (en)
AT (2) AT412657B (en)
CA (1) CA2424374C (en)
DE (1) DE50300674D1 (en)
ES (1) ES2242156T3 (en)

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EP1685293A2 (en) * 2003-11-17 2006-08-02 Astenjohnson, Inc. Herringbone type vacuum dewatering box cover

Families Citing this family (1)

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Publication number Priority date Publication date Assignee Title
AT500751B8 (en) * 2003-02-20 2007-02-15 Bartelmuss Klaus Ing DEVICE FOR TREATING, ESPECIALLY FOR IMPRESSION DISTRIBUTION, OF THE AT LEAST ONE SIEVE BAND OR MOVING IN A PAPER GENERATION APPARATUS. felt belt

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AT389534B (en) * 1987-06-04 1989-12-27 Albert Hans Device for dewatering a material web transported on a wire
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EP0454973A1 (en) * 1990-05-04 1991-11-06 Wilbanks International Suction box apparatus with composite cover elements mounted in slots on cross braces

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US1917098A (en) * 1932-02-02 1933-07-04 Austin E Cofrin Apparatus and process for making paper
AT389534B (en) * 1987-06-04 1989-12-27 Albert Hans Device for dewatering a material web transported on a wire
EP0350827A2 (en) * 1988-07-14 1990-01-17 CERASIV GmbH INNOVATIVES KERAMIK-ENGINEERING Suction box
EP0454973A1 (en) * 1990-05-04 1991-11-06 Wilbanks International Suction box apparatus with composite cover elements mounted in slots on cross braces

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1685293A2 (en) * 2003-11-17 2006-08-02 Astenjohnson, Inc. Herringbone type vacuum dewatering box cover
EP1685293A4 (en) * 2003-11-17 2007-08-01 Astenjohnson Inc Herringbone type vacuum dewatering box cover
US7540943B2 (en) 2003-11-17 2009-06-02 Astenjohnson, Inc. Shaped slot vacuum dewatering box cover

Also Published As

Publication number Publication date
CA2424374C (en) 2007-09-11
ATA15822002A (en) 2004-10-15
ES2242156T3 (en) 2005-11-01
DE50300674D1 (en) 2005-07-28
JP2004137651A (en) 2004-05-13
EP1411166A3 (en) 2004-05-12
AT412657B (en) 2005-05-25
US20040074623A1 (en) 2004-04-22
EP1411166B1 (en) 2005-06-22
ATE298381T1 (en) 2005-07-15
JP4535687B2 (en) 2010-09-01
US6875313B2 (en) 2005-04-05
CA2424374A1 (en) 2004-04-17

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