EP0135544B1 - Dewatering device for the wet part of a paper machine - Google Patents
Dewatering device for the wet part of a paper machine Download PDFInfo
- Publication number
- EP0135544B1 EP0135544B1 EP84900849A EP84900849A EP0135544B1 EP 0135544 B1 EP0135544 B1 EP 0135544B1 EP 84900849 A EP84900849 A EP 84900849A EP 84900849 A EP84900849 A EP 84900849A EP 0135544 B1 EP0135544 B1 EP 0135544B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- sucker
- machine
- felt
- projection
- watering
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Images
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 invention relates to a strip-shaped drainage element for the sieve or felt part of a fiber dewatering machine, in particular paper machine, such as a sieve table, foil, support table, wet vacuum cleaner, suction device, pipe suction device, felt suction device, the coating of which consists of individual segments made of hard materials and is in sliding contact with the sieve or felt.
- paper machine such as a sieve table, foil, support table, wet vacuum cleaner, suction device, pipe suction device, felt suction device, the coating of which consists of individual segments made of hard materials and is in sliding contact with the sieve or felt.
- a sieve table such as a sieve table, foil, support table, wet vacuum cleaner, suction device, pipe suction device, felt suction device, the coating of which consists of individual segments made of hard materials and is in sliding contact with the sieve or felt.
- sintered aluminum oxide, silicon carbide or the like which abut one another with their abutting surfaces, have a shoulder on the side facing away from the sie
- Last-shaped drainage elements for the screen or felt part of a fabric dewatering machine which are made up of individual segments made of hard materials in combination with other materials, are known.
- the introduction of the dewatering elements equipped with hard materials enabled the advantageous high working speeds of the dewatering machine currently in use.
- a decisive disadvantage of the structure of segments is that joints between the individual segments can damage the screen and felt and cause errors such as water streaks in the paper to be produced - especially if there are manufacturing-related tolerances between the individual segments.
- This disadvantage can be eliminated by grinding a completely installed drainage element at the manufacturer. Nevertheless, there may be gaping at the connection joints if the drainage elements are stressed by bending, torsion and / or thermal expansion.
- GB-A-1 232681 can also consist of individual segments with stepped connecting surfaces at their longitudinal ends which extend over the entire width of the segments, where the hard material bodies carrying the screen are not in one brittle plastic such as polyethylene are stored.
- the polyethylene expands more than the hard materials and is ground off the sieve, the machine then cools down under other operating conditions, the material ground down in the butt joints is missing and this construction also affects the vacuum and thus strip formation in the Paper.
- the object of the present invention is now to provide a strip-shaped drainage element for the screen or felt part of a fabric dewatering machine, which has no shoulders, steps or gaps in any of them when subjected to bending, torsion in the longitudinal direction or thermal expansion at the joints of the individual ceramic segments Length can be manufactured and sanded ready, is easy to assemble and is safe and easy to handle.
- the advantage of the invention is that an overlapping adhesive connection of the individual segments creates a structure that can be regarded as a self-supporting drainage element in terms of strength and can be handled safely as such. Since the upper and lower parts are made of materials with the same thermal expansion coefficient, this composite construction does not experience any forces due to thermal expansion due to thermal expansion, which leads to changes in shape or deformation, particularly at the joints, and thus to component failure.
- the non-positive and form-fitting overlapping adhesive connection enables a substantial enlargement of the surfaces that are connected to each other and thus a reduction in the specific surface load by a factor of 1.4 to 2.0.
- the critical shear strength of the adhesive connection is greater than the critical static strength of the selected hard materials made of ceramic material, it is achieved that no plastic or elastic deformations and the associated change in shape of the strip-shaped drainage element occur at the connection points.
- the invention provides that the segment made of hard materials is not formed in one part and processed by grinding, but rather is assembled from the separately manufactured processed upper part and shoulder by means of an overlapping adhesive connection.
- the upper part and the neck advantageously consist of the same material with the same specific material characteristics.
- the approach is not subject to such great demands regarding grain size distribution, surface hardness, pore volume, pore distribution, grinding and polishability as the upper part. You can therefore also use starting materials that only meet the requirements for strength and thermal expansion coefficient, while the upper part in contact with the screen or felt additionally z. B. should have as few pores as possible so that no filler particles can deposit therein, which in turn lead to sieve and felt damage. Pores in the approach, however, are favorable for better adhesion of the adhesive.
- the batch can be produced, for example, from the waste generated during the processing of the green moldings.
- the adhesive connection surface should be identical to the neutral axis of the entire cross-section, or may be above the neutral axis. If the adhesive surface lies in the neutral axis, then there are no tensile, compressive or other stresses. If the adhesive surface is above the neutral axis, the adhesive layer is only loaded by compressive stresses. In this way, a high level of security of the connection is guaranteed. If the adhesive were subjected to peeling, the security of the connection would be only a fraction of that in the case of shear or shear stress.
- Figure 1 shows the two-part segment (1), consisting of the upper part (2) and the approach (3), which can be manufactured individually and are easy to edit.
- the upper part (2) and shoulder (3) have the same length and are each shifted by half the length on their horizontal adhesive connection surfaces (4) by means of the adhesive layer (8).
- the adjacent upper part (2 ') adjoins the upper part (2). This is in turn non-positively connected to the two components via the horizontal and vertical connecting surface (4) and (5) by means of the adhesive layer (8).
- This structure is repeated by alternately attaching approach (3) and upper part (2) until the desired length of the drainage element has been reached.
- FIG. 2 shows a drainage element in the sectional view in the plane of the line IV-IV drawn in Figure 1.
- the upper part (2) is designed in the form of a foil.
- the connection to the neck (3) is made by the adhesive layer (8).
- the approach (3) has a T-shaped cross section.
- the drainage element is connected to the supporting structure by means of a profile strip (9) shown in FIG.
- Figure 3 shows a drainage element of a second embodiment in a perspective view.
- the structure is again made up of two-part individual segments (1).
- the direction of wire travel is indicated by the arrow (6).
- the upper part (2) is formed in the form of a foil and wider than the neck (3).
- the approach (3) has a dovetail cross-section for connection to the profile bar, not shown here.
- the thickness of the extension (3) in the vertical extension is greater than the thickness of the top (2).
- the upper part (2) has the same overall length as the extension (3) and is offset by half the overall length on the extension (3) by means of the adhesive layer (8).
- Figure 4 shows the vertical section through a drainage element in its structure on the support structure of a fabric dewatering machine.
- the contact surface (11) of the upper part (2) touches the sieve or the felt, the direction of which is indicated by the arrow (6).
- the attachment (3) the cross section of which is trapezoidal, non-positively connected to the upper part (2), engages in the profile strip (9), which is made of plastic, glass fiber reinforced plastic or metal.
- the profile strip (9) in turn encompasses a T-shaped metal profile (12) of the supporting structure (10) of the fabric dewatering machine.
- the dewatering segment with its extension (3) can only move freely in the recess of the profile strip (9) transversely to the direction of wire travel.
- the profile strip (9) on the T-shaped metal profile (12) with the supporting structure (10) can only move freely transversely to the direction of wire travel (6). With this arrangement, thermal expansions in the assembled structure are compensated for by slip, so that no bending stresses occur on the drainage element.
Abstract
Description
Die Erfindung betrifft ein leistenförmiges Entwässerungselement für den Sieb- oder Filzteil einer Faserstoffentwässerungsmaschine, insbesondere Papiermaschine, wie Siebtisch, Foil, Stütztisch, Nasssauger, Sauger, Rohrsauger, Filzsauger, dessen in gleitender Berührung mit dem Sieb oder Filz stehender Belag aus einzelnen Segmenten aus Hartstoffen, wie gesinterem Aluminiumoxid, Siliziumkarbid o. ä. besteht, die mit ihren Stossflächen aneinanderliegen, an der der Siebseite abgewandten Seite einen Ansatz aufweisen und wobei die einzelnen Segmente auf einer quer zur Maschinenlaufrichtung sich erstreckenden Profilleiste befestigt sind, die ihrerseits auf der Tragkonstruktion der Entwässerungsmaschine aufgebracht wird und die einzelnen Segmente untereinander durch Verklebung verbunden sind. (US-A-4047993).The invention relates to a strip-shaped drainage element for the sieve or felt part of a fiber dewatering machine, in particular paper machine, such as a sieve table, foil, support table, wet vacuum cleaner, suction device, pipe suction device, felt suction device, the coating of which consists of individual segments made of hard materials and is in sliding contact with the sieve or felt. such as sintered aluminum oxide, silicon carbide or the like, which abut one another with their abutting surfaces, have a shoulder on the side facing away from the sieve side, and the individual segments are fastened on a profile strip extending transversely to the machine direction, which in turn is applied to the supporting structure of the dewatering machine and the individual segments are connected to each other by gluing. (US-A-4047993).
Leistenförmige Entwässerungselemente für den Sieb- oder Filzteil einer Stoffentwässerungsmaschine, die aus einzelnen Segementen aus Hartstoffen in Vebindung mit anderen Stoffen aufgebaut sind, sind bekannt. Die Einführung der mit Hartstoffen ausgerüsteten Entwässerungselemente hat die vorteilhaften hohen Arbeitsgeschwindigkeiten der heute im Gebrauch befindlichen Stoffentwässerungsmaschine ermöglicht.Last-shaped drainage elements for the screen or felt part of a fabric dewatering machine, which are made up of individual segments made of hard materials in combination with other materials, are known. The introduction of the dewatering elements equipped with hard materials enabled the advantageous high working speeds of the dewatering machine currently in use.
Der Aufbau der Entwässerungselemente aus einzelnen Segmenten ist deshalb erforderlich, weil Körper aus Hartstoffen nicht in beliebig grossflächiger Ausbildung in einem Stück hergestellt werden können, wie das beispielsweise bei Kunststoffen der Fall ist.The construction of the drainage elements from individual segments is necessary because bodies made of hard materials cannot be produced in one piece in any large area, as is the case, for example, with plastics.
Ein entscheidender Nachteil des Aufbaues aus Segmenten besteht darin, dass Stossstellen zwischen den einzelnen Segmenten Sieb und Filz beschädigen können sowie Fehler wie Wasserstreifen im zu erzeugenden Papier verursachen - insbesondere, wenn zwischen den einzelnen Segmenten fertigungsbedingte Toleranzen bestehen. Dieser Nachteil kann durch Überschleifen eines fertig aufgebauten Entwässerungselementes beim Hersteller beseitigt werden. Trotzdem kann es zum Klaffen an den Verbindungsstössen kommen, wenn die Entwässerungselemente durch Biegung, Torsion und/oder Wärmedehnung belastet werden.A decisive disadvantage of the structure of segments is that joints between the individual segments can damage the screen and felt and cause errors such as water streaks in the paper to be produced - especially if there are manufacturing-related tolerances between the individual segments. This disadvantage can be eliminated by grinding a completely installed drainage element at the manufacturer. Nevertheless, there may be gaping at the connection joints if the drainage elements are stressed by bending, torsion and / or thermal expansion.
Aus der EP-A-005691 ist bekannt, Hartstoffsegmente mit Steatitunterteilen zu verkleben, wobei die Steatitunterteile gegenüber den Hartstoffsegmenten versetzt sind. Als Kleber wird dabei ein Kunstharz eingesetzt, der so elastisch ist, dass er die unterschiedlichen Wärmeausdehnungen kompensieren kann, ohne zerstört zu werden. In der Praxis bildet sich dabei allerdings zwischen den einzelnen Hartstoffsegmenten ein Spalt, der zwar meniskusartig vom elastischen Kleber überbrückt wird, sich aber trotzdem unterhalb des Berührungsbereiches zwischen Keramikleiste und Sieb erstreckt und damit das sich hinter der Leiste aufbauende Vakuum beeinflusst, so dass es in diesem Bereich zur Streifenbildung im Papier kommt. Derselbe Effekt tritt in verstärktem Masse bei dem Gegenstand der GB-A-1 232681 auf, die auch aus einzelnen Segmenten mit an ihren längsseitigen Enden sich über die ganze Breite der Segmente erstreckende gestufte Verbindungsflächen bestehen können, wo die das Sieb tragenden Hartstoffkörper in einem nicht spröden Kunststoff wie Polyäthylen eingelagert sind. Das Polyäthylen dehnt sich bei Erwärmung stärker aus als die Hartstoffe und wird vom Sieb abgeschliffen, kühlt sich dann die Maschine durch andere Betriebsbedingungen ab, fehlt das in den Stossfugen abgeschliffene Material und es kommt auch bei dieser Konstruktion zur Beeinträchtigung des Vakuums und damit zur Streifenbiidung im Papier. _It is known from EP-A-005691 to glue hard material segments to steatite lower parts, the steatite lower parts being offset with respect to the hard material segments. A synthetic resin is used as the adhesive, which is so elastic that it can compensate for the different thermal expansions without being destroyed. In practice, however, a gap is formed between the individual hard material segments, which is bridged like a meniscus by the elastic adhesive, but still extends below the contact area between the ceramic bar and sieve and thus influences the vacuum that builds up behind the bar, so that it is in it Streaking area in the paper comes. The same effect occurs to an increased extent in the subject of GB-A-1 232681, which can also consist of individual segments with stepped connecting surfaces at their longitudinal ends which extend over the entire width of the segments, where the hard material bodies carrying the screen are not in one brittle plastic such as polyethylene are stored. When heated, the polyethylene expands more than the hard materials and is ground off the sieve, the machine then cools down under other operating conditions, the material ground down in the butt joints is missing and this construction also affects the vacuum and thus strip formation in the Paper. _
Aufgabe der vorliegenden Erfindung ist es nun, ein leistenförmiges Entwässerungselement für den Sieb- oder Filzteil einer Stoffentwässerungsmaschine zu schaffen, das bei Beanspruchung durch Biegung, Torsion in Längsrichtung oder bei Wärmedehnung an den Stossstellen der einzelnen Keramiksegmente keine Absätze, Stufen oder Spalten aufweist, in beliebiger Länge herstellbar und fertig geschliffen werden kann, einfach zu montieren ist und sicher und einfach handhabbar ist.The object of the present invention is now to provide a strip-shaped drainage element for the screen or felt part of a fabric dewatering machine, which has no shoulders, steps or gaps in any of them when subjected to bending, torsion in the longitudinal direction or thermal expansion at the joints of the individual ceramic segments Length can be manufactured and sanded ready, is easy to assemble and is safe and easy to handle.
Die Aufgabe wird erfindungsgemäss gelöst durch den Gegenstand des Anspruchs 1.The object is achieved according to the invention by the subject matter of claim 1.
Der Vorteil der Erfindung besteht darin, dass durch überlappende Klebeverbindungen der einzelnen Segmente ein Gebilde entsteht, das festigkeitsmässig als selbsttragendes Entwässerungselement betrachtet werden kann und als solches sicher gehandhabt werden kann. Da Oberteil und Unterteil aus Werkstoffen gleichen thermischen Ausdehnungskoeffizienten bestehen, treten bei dieser Verbundkonstruktion bei Temperaturänderungen keine Kräfte aufgrund von Wärmedehnungen auf, die zu Formänderung oder Verformungen besonders an den Stossstellen und damit zum Versagen des Bauteils führen.The advantage of the invention is that an overlapping adhesive connection of the individual segments creates a structure that can be regarded as a self-supporting drainage element in terms of strength and can be handled safely as such. Since the upper and lower parts are made of materials with the same thermal expansion coefficient, this composite construction does not experience any forces due to thermal expansion due to thermal expansion, which leads to changes in shape or deformation, particularly at the joints, and thus to component failure.
Die kraft- und formschlüssige überlappende Klebeverbindung ermöglicht gegenüber einer Klebung mit stumpfem Stoss eine wesentliche Vergrösserung der miteinander in Verbindung stehenden Flächen und somit eine Verminderung der spezifischen Flächenbelastung um den Faktor 1,4 bis 2,0.The non-positive and form-fitting overlapping adhesive connection enables a substantial enlargement of the surfaces that are connected to each other and thus a reduction in the specific surface load by a factor of 1.4 to 2.0.
Da die kritische Scherfestigkeit der Klebeverbindung grösser ist als die kritische statische Festigkeit der gewählten Hartstoffe aus keramischem Werkstoff, wird erreicht, dass an den Verbindungsstellen keine plastischen oder elastischen Verformungen und damit verbundene Formänderung des leistenförmigen Entwässerungselementes auftreten.Since the critical shear strength of the adhesive connection is greater than the critical static strength of the selected hard materials made of ceramic material, it is achieved that no plastic or elastic deformations and the associated change in shape of the strip-shaped drainage element occur at the connection points.
Zur Durchführung der Klebeverbindung sind allgemein bekannte Klebstoffe einsetzbar, sofern sie nur die geforderte hohe Festigkeit erreichen. Ganz besonders bevorzugt werden jedoch 2 Komponentenkleber auf Basis von Epoxidharz eingesetzt, da die damit ausgeführte Verbindung aufgrund der erforderlichen Aushärtungszeit ein nachträgliches Ausrichten der einzelnen Segmente nach dem Zusammenfügen noch gestattet.Well-known adhesives can be used to carry out the adhesive connection, provided that they only achieve the required high strength. However, two component adhesives based on epoxy resin are very particularly preferably used, since the connection carried out with them still permits subsequent alignment of the individual segments after the assembly, owing to the required curing time.
Die Erfindung sieht vor, dass das Segment aus Hartstoffen nicht in einem Teil ausgeformt und durch Schleifen bearbeitet wird, sondern aus dem separat hergestellten bearbeiteten Oberteil und Ansatz mittels überlappender Klebeverbindung zusammengesetzt wird. Oberteil und Ansatz bestehen dabei vorteilhaft aus dem gleichen Werkstoff mit gleichen spezifischen Werkstoffkennzahlen.The invention provides that the segment made of hard materials is not formed in one part and processed by grinding, but rather is assembled from the separately manufactured processed upper part and shoulder by means of an overlapping adhesive connection. The upper part and the neck advantageously consist of the same material with the same specific material characteristics.
An den Ansatz werden jedoch keine so grossen Anforderungen bezüglich Korngrössenverteilung, Oberflächenhärte, Porenvolumen, Porenverteilung, Schleif- und Polierbarkeit wie an das Oberteil gestellt. Man kann daher auch Ausgangswerkstoffe einsetzen, die nur den Anforderungen an Festigkeit und thermischen Ausdehnungskoeffizienten genügen, während das mit dem Sieb oder Filz in Berührung stehende Oberteil zusätzlich z. B. möglichst wenig Poren aufweisen soll, damit darin keine Füllstoffpartikel ablagern können, die wiederum zu Sieb- und Filzbeschädigungen führen. Poren im Ansatz sind dagegen günstig für eine bessere Haftung des Klebstoffes. Der Ansatz kann beispielsweise aus den bei der Bearbeitung der grünen Formkörper anfallenden Abfälle hergestellt werden.However, the approach is not subject to such great demands regarding grain size distribution, surface hardness, pore volume, pore distribution, grinding and polishability as the upper part. You can therefore also use starting materials that only meet the requirements for strength and thermal expansion coefficient, while the upper part in contact with the screen or felt additionally z. B. should have as few pores as possible so that no filler particles can deposit therein, which in turn lead to sieve and felt damage. Pores in the approach, however, are favorable for better adhesion of the adhesive. The batch can be produced, for example, from the waste generated during the processing of the green moldings.
Die Klebeverbindungsfläche soll mit der neutralen Achse des Geamtquerschnittes identisch sein, oder kann oberhalb der neutralen Achse liegen. Liegt die Klebefläche in der neutralen Achse, dann treten keinerlei Zug-, Druck- oder andere Spannungen auf. Liegt die Klebefläche über der neutralen Achse, wird die Klebeschicht nur durch Druckspannungen belastet. Auf diese Art und Weise ist eine hohe Sicherheit der Verbindung garantiert. Würde die Klebung auf Schälung beansprucht, dann betrüge die Sicherheit der Verbindung nur einen Bruchteil gegenüber derjenigen bei Schub-oder Scherbeanspruchung.The adhesive connection surface should be identical to the neutral axis of the entire cross-section, or may be above the neutral axis. If the adhesive surface lies in the neutral axis, then there are no tensile, compressive or other stresses. If the adhesive surface is above the neutral axis, the adhesive layer is only loaded by compressive stresses. In this way, a high level of security of the connection is guaranteed. If the adhesive were subjected to peeling, the security of the connection would be only a fraction of that in the case of shear or shear stress.
Die nachfolgenden Figuren dienen der näheren Erläuterung der Erfindung, ohne dass die Erfindung auf die gezeigten Ausführungsformen beschränkt ist:
- Fig. zeigt ein Entwässerungselement in Seitenansicht quer zur Maschinenlaufrichtung,
- Fig. 2 zeigt eine Schnittansicht der Figur 1 in der Ebene der Linie V-V,
- Fig.3 zeigt ein Entwässerungselement einer weiteren Ausführungsform in perspektivischer Darstellung,
- Fig.4 zeigt die Schnittansicht eines Entwässerungselementes mit Profilleiste und Tragkonstruktion der Stoffentwässerungsmaschine.
- 1 shows a drainage element in a side view transverse to the machine direction,
- 2 shows a sectional view of FIG. 1 in the plane of the line VV,
- 3 shows a drainage element of a further embodiment in a perspective view,
- Fig. 4 shows the sectional view of a drainage element with profile strip and supporting structure of the fabric dewatering machine.
Figur 1 zeigt das zweiteilige Segment (1), bestehend aus Oberteil (2) und dem Ansatz (3), die einzeln herstellbar und leicht bearbeitbar sind. Oberteil (2) und Ansatz (3) weisen die gleiche Länge auf und sind jeweils um die halbe Länge verschoben an ihren horizontalen Klebeverbindungsflächen (4) mittels der Klebstoffschicht (8) kraftschlüssig verbunden. An das Oberteil (2) schliesst sich das benachbarte Oberteil (2')an. Dieses ist mit den beiden Bauteilen über die horizontale und vertikale Verbindungsfläche (4) und (5) mittels der Klebestoffschicht (8) wiederum kraftschlüssig verbunden. Dieser Aufbau wiederholt sich durch abwechselndes Ansetzen von Ansatz (3) und Oberteil (2), bis die gewünschte Länge des Entwässerungselementes erreicht worden ist.Figure 1 shows the two-part segment (1), consisting of the upper part (2) and the approach (3), which can be manufactured individually and are easy to edit. The upper part (2) and shoulder (3) have the same length and are each shifted by half the length on their horizontal adhesive connection surfaces (4) by means of the adhesive layer (8). The adjacent upper part (2 ') adjoins the upper part (2). This is in turn non-positively connected to the two components via the horizontal and vertical connecting surface (4) and (5) by means of the adhesive layer (8). This structure is repeated by alternately attaching approach (3) and upper part (2) until the desired length of the drainage element has been reached.
Figur 2 zeigt ein Entwässerungselement in der Schnittansicht in der Ebene der in der Figur 1 gezeichneten Linie IV-IV. Oberteil (2) ist in Form eines Foils ausgebildet. Die Verbindung zum Ansatz (3) wird durch die Klebstoffschicht (8) hergestellt. Der Ansatz (3) weist einen T-förmigen Querschnitt auf. Mittels einer in Figur 4 dargestellten Profilleiste (9) wird das Entwässerungselement mit der Tragkonstruktion verbunden.Figure 2 shows a drainage element in the sectional view in the plane of the line IV-IV drawn in Figure 1. The upper part (2) is designed in the form of a foil. The connection to the neck (3) is made by the adhesive layer (8). The approach (3) has a T-shaped cross section. The drainage element is connected to the supporting structure by means of a profile strip (9) shown in FIG.
Figur 3 zeigt ein Entwässerungselement einer zweiten Ausführungsform in perspektivischer Ansicht. Der Aufbau erfolgt wiederum aus zweiteiligen Einzelsegmenten (1). Die Sieblaufrichtung ist durch den Pfeil (6) angedeutet. Das Oberteil (2) ist in Form eines Foils durchgebildet und breiter als der Ansatz (3). Der Ansatz (3) weist zur Verbindung mit der hier nicht dargestellten Profilleiste einen schwalbenschwanzförmigen Querschnitt auf. Die Stärke des Ansatzteils (3) in vertikaler Erstreckung ist grösser als die Stärke des Oberteils (2). Das Oberteil (2) weist die gleiche Baulänge auf wie der Ansatz (3) und ist um die halbe Baulänge versetzt auf dem Ansatz (3) mittels der Klebstoffschicht (8) befestigt.Figure 3 shows a drainage element of a second embodiment in a perspective view. The structure is again made up of two-part individual segments (1). The direction of wire travel is indicated by the arrow (6). The upper part (2) is formed in the form of a foil and wider than the neck (3). The approach (3) has a dovetail cross-section for connection to the profile bar, not shown here. The thickness of the extension (3) in the vertical extension is greater than the thickness of the top (2). The upper part (2) has the same overall length as the extension (3) and is offset by half the overall length on the extension (3) by means of the adhesive layer (8).
Figur 4 zeigt den vertikalen Schnitt durch ein Entwässerungselement in seinem Aufbau auf der Tragkonstruktion einer Stoffentwässerungsmaschine. Die Kontaktfläche (11) des Oberteils (2) berührt das Sieb oder den Filz, dessen Laufrichtung durch den Pfeil (6) angedeutet wird. Der mit dem Oberteil (2) kraftschlüssig verbundene Ansatz (3), dessen Querschnitt trapezförmig ist, greift in die Profilleiste (9) ein, die aus Kunststoff, glasfaserverstärktem Kunststoff oder Metall gefertigt ist. Die Profilleiste (9) ihrerseits umgreift ein T-förmiges Metallprofil (12) der Tragkonstruktion (10) der Stoffentwässerungsmaschine. Das Entwässerungssegment ist mit seinem Ansatz (3) in der Ausnehmung der Profilleiste (9) nur quer zur Sieblaufrichtung frei beweglich. Ebenso ist die Profilleiste (9) auf dem T-förmigen Metallprofil (12) mit der Tragkonstruktion (10) nur quer zur Sieblaufrichtung (6) frei beweglich. Durch diese Anordnung werden Wärmedehnungen in dem zusammengesetzten Aufbau durch Gleitschlupf ausgeglichen, so dass an dem Entwässerungselement keine Biegebeanspruchungen auftreten.Figure 4 shows the vertical section through a drainage element in its structure on the support structure of a fabric dewatering machine. The contact surface (11) of the upper part (2) touches the sieve or the felt, the direction of which is indicated by the arrow (6). The attachment (3), the cross section of which is trapezoidal, non-positively connected to the upper part (2), engages in the profile strip (9), which is made of plastic, glass fiber reinforced plastic or metal. The profile strip (9) in turn encompasses a T-shaped metal profile (12) of the supporting structure (10) of the fabric dewatering machine. The dewatering segment with its extension (3) can only move freely in the recess of the profile strip (9) transversely to the direction of wire travel. Likewise, the profile strip (9) on the T-shaped metal profile (12) with the supporting structure (10) can only move freely transversely to the direction of wire travel (6). With this arrangement, thermal expansions in the assembled structure are compensated for by slip, so that no bending stresses occur on the drainage element.
Claims (3)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AT84900849T ATE26730T1 (en) | 1983-02-24 | 1984-02-22 | DEWATERING ELEMENT FOR THE WET SECTION OF A PAPER MACHINE. |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE3306457 | 1983-02-24 | ||
| DE3306457A DE3306457C2 (en) | 1983-02-24 | 1983-02-24 | Drainage element for the wet part of a paper machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0135544A1 EP0135544A1 (en) | 1985-04-03 |
| EP0135544B1 true EP0135544B1 (en) | 1987-04-22 |
Family
ID=6191719
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP84900849A Expired EP0135544B1 (en) | 1983-02-24 | 1984-02-22 | Dewatering device for the wet part of a paper machine |
Country Status (9)
| Country | Link |
|---|---|
| EP (1) | EP0135544B1 (en) |
| JP (1) | JPS60500819A (en) |
| BR (1) | BR8405488A (en) |
| CA (1) | CA1235010A (en) |
| DE (2) | DE3306457C2 (en) |
| FI (1) | FI80093C (en) |
| IT (1) | IT1180437B (en) |
| SU (1) | SU1431685A3 (en) |
| WO (1) | WO1984003314A1 (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3823882A1 (en) * | 1988-07-14 | 1990-01-18 | Feldmuehle Ag | SLOT SUCTION |
| DE29504419U1 (en) * | 1995-03-15 | 1995-05-11 | Voith Sulzer Papiermasch Gmbh | Last unit for the flexible support of a paper machine belt |
| GB9518713D0 (en) * | 1995-09-13 | 1995-11-15 | Int Syalons Newcastle Ltd | Wear-resistant blade element |
| DE10130323A1 (en) * | 2001-06-22 | 2003-01-02 | Voith Paper Patent Gmbh | Wear body in laminated construction, in particular in a paper or board machine, process for its production and its use |
| ES2329843T3 (en) | 2006-10-16 | 2009-12-01 | Klaus Bartelmuss | SCREEN LIST FOR PAPER GENERATION FACILITIES. |
| US7918969B2 (en) * | 2007-03-23 | 2011-04-05 | Astenjohnson, Inc. | Composite construction for dewatering blades for a papermaking machine |
| CN101688363B (en) | 2007-05-23 | 2013-03-13 | 阿斯顿约翰逊公司 | Papermaking machine dewatering blade incorporating attachment mechanism |
| AT524317B1 (en) * | 2021-06-08 | 2022-05-15 | Bartelmuss Ing Klaus | Drip bar and kit for use in a paper web forming installation |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SE349341B (en) * | 1967-04-17 | 1972-09-25 | Leder & Riemen Patent | |
| AT357857B (en) * | 1974-07-29 | 1980-08-11 | Bartelmuss Heinrich Ing | METHOD AND DEVICE FOR THE PRODUCTION OF A COATING COMPOSED FROM INDIVIDUAL OXIDE CERAMIC ELEMENTS |
| US4047993A (en) * | 1975-11-13 | 1977-09-13 | Heinrich Bartelmuss | Method of making an abrasion-resistant plate |
| EP0005691A1 (en) * | 1978-05-12 | 1979-11-28 | Rudolf Poeschl | Construction part co-operating with the gauze or felt of a pulp drainage machine, and method of making the same |
| US4238286A (en) * | 1979-05-22 | 1980-12-09 | Rudolf Poeschl | Dewatering table bar for the wire cloth or felt in a pulp-dewatering machine |
-
1983
- 1983-02-24 DE DE3306457A patent/DE3306457C2/en not_active Expired
-
1984
- 1984-02-22 WO PCT/DE1984/000040 patent/WO1984003314A1/en active IP Right Grant
- 1984-02-22 DE DE8484900849T patent/DE3463281D1/en not_active Expired
- 1984-02-22 BR BR8405488A patent/BR8405488A/en unknown
- 1984-02-22 JP JP59500975A patent/JPS60500819A/en active Pending
- 1984-02-22 EP EP84900849A patent/EP0135544B1/en not_active Expired
- 1984-02-23 CA CA000448186A patent/CA1235010A/en not_active Expired
- 1984-02-24 IT IT12445/84A patent/IT1180437B/en active
- 1984-09-28 FI FI843839A patent/FI80093C/en not_active IP Right Cessation
- 1984-10-23 SU SU843805278A patent/SU1431685A3/en active
Also Published As
| Publication number | Publication date |
|---|---|
| FI80093C (en) | 1990-04-10 |
| IT8412445A1 (en) | 1985-08-24 |
| SU1431685A3 (en) | 1988-10-15 |
| FI843839L (en) | 1984-09-28 |
| DE3306457C2 (en) | 1986-05-07 |
| IT8412445A0 (en) | 1984-02-24 |
| BR8405488A (en) | 1985-02-20 |
| FI843839A0 (en) | 1984-09-28 |
| DE3463281D1 (en) | 1987-05-27 |
| JPS60500819A (en) | 1985-05-30 |
| EP0135544A1 (en) | 1985-04-03 |
| CA1235010A (en) | 1988-04-12 |
| IT1180437B (en) | 1987-09-23 |
| FI80093B (en) | 1989-12-29 |
| DE3306457A1 (en) | 1984-08-30 |
| WO1984003314A1 (en) | 1984-08-30 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP0135544B1 (en) | Dewatering device for the wet part of a paper machine | |
| DE2362732A1 (en) | DEWATERING DEVICE FOR THE SCREEN OR FELT PART OF A FABRIC DRAINING MACHINE AND PROCESS FOR ITS MANUFACTURING | |
| CH624315A5 (en) | ||
| DE2720133A1 (en) | FIBER-REINFORCED PLASTIC COMPONENT, IN PARTICULAR HELICOPTER ROTOR BLADE | |
| EP1916331B1 (en) | Drainage foil for paper production facility | |
| EP0350827B1 (en) | Suction box | |
| AT411770B (en) | SCREEN BAR FOR A PAPER PRODUCTION PLANT | |
| WO2001036741A1 (en) | Method for producing fittings for the mechanical processing of a fibrous material suspension | |
| DE102005003801B4 (en) | Insulating element and thermal insulation composite system | |
| EP1028787A1 (en) | Hockey stick | |
| EP0628657A1 (en) | Finger guard for a roll nip | |
| EP0044956B1 (en) | Damping coating | |
| DE2649576C2 (en) | Wooden beams | |
| DE3724246C2 (en) | ||
| DE3028840C2 (en) | Coupling support construction for throwable loads under aircraft | |
| DE60218637T2 (en) | GRINDING SEGMENT AND GRINDSTONE | |
| DE2802562A1 (en) | Sieve sheet with detachable sections - has sections wider at bottom than distance between supporting components | |
| DE3318628A1 (en) | Leaf spring consisting of fibre-reinforced plastics | |
| AT412217B (en) | Support beam for sliding sieve within a papermaking assembly has series of ceramic caps linked to underlying beam by twin-dovetail plugs and matching grooves | |
| AT317665B (en) | Installation on a foil strip for fourdrinier paper or pulp dewatering machines | |
| DE2814626A1 (en) | CONSTRUCTION FOR TUNNEL CARRIAGE | |
| DE2650343A1 (en) | ARRANGEMENT OF DRAINAGE ELEMENTS IN FABRIC DRAINAGE MACHINES | |
| DE726992C (en) | Building board with two walls, arranged at a distance from one another, made of materials of different expansion | |
| DE102017115742A1 (en) | dehydrator | |
| DE2304606C3 (en) | Pipeline with plastic coating and spanned skid segments made of plastic to be drawn or pushed into a protective tube |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
| 17P | Request for examination filed |
Effective date: 19841009 |
|
| AK | Designated contracting states |
Designated state(s): AT BE CH DE FR GB LI LU NL SE |
|
| 17Q | First examination report despatched |
Effective date: 19860123 |
|
| GRAA | (expected) grant |
Free format text: ORIGINAL CODE: 0009210 |
|
| AK | Designated contracting states |
Kind code of ref document: B1 Designated state(s): AT BE CH DE FR GB LI LU NL SE |
|
| REF | Corresponds to: |
Ref document number: 26730 Country of ref document: AT Date of ref document: 19870515 Kind code of ref document: T |
|
| ET | Fr: translation filed | ||
| REF | Corresponds to: |
Ref document number: 3463281 Country of ref document: DE Date of ref document: 19870527 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: LU Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 19880229 |
|
| PLBE | No opposition filed within time limit |
Free format text: ORIGINAL CODE: 0009261 |
|
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT |
|
| 26N | No opposition filed | ||
| PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: SE Payment date: 19890227 Year of fee payment: 6 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: FR Effective date: 19890228 |
|
| PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: NL Payment date: 19890228 Year of fee payment: 6 Ref country code: BE Payment date: 19890228 Year of fee payment: 6 |
|
| PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: CH Payment date: 19890427 Year of fee payment: 6 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: SE Effective date: 19900223 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: LI Effective date: 19900228 Ref country code: CH Effective date: 19900228 Ref country code: BE Effective date: 19900228 |
|
| PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: DE Payment date: 19900319 Year of fee payment: 7 |
|
| PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: AT Payment date: 19900327 Year of fee payment: 7 |
|
| PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: GB Payment date: 19900331 Year of fee payment: 7 |
|
| BERE | Be: lapsed |
Owner name: FELDMUHLE A.G. Effective date: 19900228 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: NL Effective date: 19900901 |
|
| NLV4 | Nl: lapsed or anulled due to non-payment of the annual fee | ||
| REG | Reference to a national code |
Ref country code: CH Ref legal event code: PL |
|
| REG | Reference to a national code |
Ref country code: FR Ref legal event code: ST |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: GB Effective date: 19910222 Ref country code: AT Effective date: 19910222 |
|
| GBPC | Gb: european patent ceased through non-payment of renewal fee | ||
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: DE Effective date: 19911101 |
|
| EUG | Se: european patent has lapsed |
Ref document number: 84900849.5 Effective date: 19901107 |