EP1186701B1 - Press arrangement - Google Patents
Press arrangement Download PDFInfo
- Publication number
- EP1186701B1 EP1186701B1 EP01117413A EP01117413A EP1186701B1 EP 1186701 B1 EP1186701 B1 EP 1186701B1 EP 01117413 A EP01117413 A EP 01117413A EP 01117413 A EP01117413 A EP 01117413A EP 1186701 B1 EP1186701 B1 EP 1186701B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- press
- shell
- shoe
- outlet
- pressure nip
- 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 - Lifetime
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Classifications
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
- D21F3/00—Press section of machines for making continuous webs of paper
- D21F3/02—Wet presses
- D21F3/0209—Wet presses with extended press nip
- D21F3/0218—Shoe presses
Definitions
- the invention relates to a press arrangement for the treatment of a fibrous web, in particular paper, board or tissue web, in a formed between a shoe press roll and a mating surface, extended in the running direction press nip, the shoe press roll rotatably mounted carrier, a rotating around the support flexible press cover and comprises at least one press shoe supported on the support over which the flexible press jacket against the counter surface pressable and extended in the direction of the mantle over the press nip through an outlet, the press shoe is pushed out in the operating position of the undeformed Pressmantelkontur, pressed the Preßmantel against against the mating surface Preßschuh is guided by this so that it runs in the region of the press nip radially outside an imaginary circular path, which would result in assumed continuous circular cylindrical track guide, and in the region of the free end the outlet is present at this.
- the fibrous web is guided through the press nip together with at least one dewatering belt, for example a felt.
- the press jacket runs due to its inherent rigidity, centrifugal forces and the Preßmantelinnendruck in a large radius from the press nip. Accordingly, the separation of paper and felt takes place only far outside the press nip, with the result that the rewetting of the paper occurring up to the separation from the felt, in particular with thinner papers, such as e.g. is very high on tissue paper.
- the aim of the invention is to provide a press arrangement of the type mentioned, in which such re-wetting is reduced to a minimum and with the correspondingly a significantly higher dry content of the fibrous web is achieved.
- this object is achieved in that considered in Mantellaufraum the length of the spout is greater than about half the length of the press nip and the press cover is guided in pressed against the mating surface Preßschuh by this so that it in the region of the press nip by an amount radially outside the imaginary circular path runs, which corresponds on average about 1 to about 3% of the circular path diameter.
- the press cover is in operation in the region of the end of the spout and thus closes the outlet area airtight. As a back ventilation of this area is thus excluded, the press cover must follow exactly the outlet contour, whereby an immediate separation of felt and fibrous web is effected outside of the press nip.
- the length of the outlet is greater than approximately three quarters of the length of the press nip, preferably greater than or equal to the length of the press nip, as viewed in the machine direction.
- the press cover is guided in pressed against the mating surface Preßschuh by this so that it extends in the region of the press nip by an amount radially outside of the imaginary circular path, which averages about 1.5 to about 2, 5% and in particular about 2% of the circular path diameter corresponds.
- the outlet may have a substantially flat, the press jacket facing surface.
- the press nip defining the pressing surface of the press shoe applied tangent forms an angle in the range of about 18 °.
- the contour of the press jacket facing, the press nip defining pressing surface of the press shoe is suitably adapted to the contour of the mating surface.
- the mating surface may be formed for example by a counter-roller.
- the pressing jacket facing, the press nip defining pressing surface of the press shoe thus have a generally concave contour.
- the outlet is bent at its free end generally radially inward.
- the press cover in the preferably rounded transition region to the generally radially inwardly bent end of the outlet at this rest.
- FIGURE of the drawing shows a schematic partial representation of a press arrangement 10 for treating a fibrous web in a formed between a shoe press roll 12 and a mating surface 14, extended in the web running direction L press nip 16.
- the (not shown here) fibrous web may be in particular a paper , Carton or tissue web. As a rule, it is guided through the extended press nip 16 together with at least one dewatering belt (not shown), in particular a felt.
- the shoe press roll 12 comprises a rotatably mounted carrier 18, a circulating around the support 18 flexible press jacket 20 and at least one support 18 supported on the press shoe 22 over which the flexible press jacket 20 against the counter surface 14 can be pressed.
- the press shoe 22 is extended beyond the press nip 16 through an outlet 24.
- the Preßmantel 20 is guided by this so that it runs in the region of the press nip 16 radially outside the circular path 26, which would result in assumed circular cylindrical web guide, and in the region of the free end 28 of the Outlet 24 is applied to this.
- the length 1 A of the outlet 24 can be greater than about half the length 1 S of the press nip 16, in particular greater than about three quarters of the length 1 S of the press nip 16 and preferably greater than or equal to the length 1 S of the press nip 16 , In the illustrated embodiment, the outlet 24 is at least substantially the same length as the press nip 16th
- the Preßmantel 20 in operation ie when pressed against the mating surface 14 Preßschuh 22, guided by this so that it extends in the region of the press nip 16 by an amount a radially outside the imaginary circular path 26.
- This amount a can be on average about 1 to about 3%, in particular about 1.5 to about 2.5% and in particular about 2% of the diameter of the imaginary circular path 26 correspond.
- the outlet 24 may have a substantially planar the press jacket 20 facing surface 30.
- this preferably substantially flat surface 30 of the outlet 24 forms at the press nip 32 at the press jacket 20 facing the press nip 16 defining the pressing surface 34 of the press shoe 22 applied tangent 36 an angle ⁇ in the range of, for example, about 18 °.
- the contour of the press jacket 20 facing the press nip 16 defining the pressing surface 34 of the press shoe 22 may be adapted to the contour of the counter surface 14.
- this counter-surface 14 is formed by a counter-roller 38. Accordingly, the press cover 20 facing the press nip 16 defining pressing surface 34 have a generally concave contour.
- the outlet 24 is bent at its free end 28 generally radially inwardly.
- the Preßmantel 20 is in a preferably rounded transition region 40 to the generally radially inwardly bent outlet end at the outlet 24.
- the press shoe is provided with a longer spout and further pushed out in the operating position of the undeformed shell contour, as is the case in the previous versions.
- the press cover is in operation at the end of the outlet and thus closes the outlet area airtight. Since a back ventilation of this area is thus excluded, the press jacket must be exactly the outlet contour follow, causing an immediate separation of felt and fibrous web outside the press nip.
Landscapes
- Paper (AREA)
- Replacement Of Web Rolls (AREA)
Description
Die Erfindung betrifft eine Pressenanordnung zur Behandlung einer Faserstoffbahn, insbesondere Papier-, Karton- oder Tissuebahn, in einem zwischen einer Schuhpreßwalze und einer Gegenfläche gebildeten, in Bahnlaufrichtung verlängerten Preßspalt, wobei die Schuhpreßwalze einen drehfest gelagerten Träger, einen um den Träger umlaufenden flexiblen Preßmantel sowie wenigstens einen am Träger abgestützten Preßschuh umfaßt, über den der flexible Preßmantel gegen die Gegenfläche preßbar und der in Mantellaufrichtung über den Preßspalt hinaus durch einen Auslauf verlängert ist, wobei der Pressschuh in Betriebsstellung aus der unverformten Pressmantelkontur herausgedrückt wird, der Preßmantel bei gegen die Gegenfläche gepreßtem Preßschuh durch diesen so geführt ist, daß er im Bereich des Preßspaltes radial außerhalb einer gedachten Kreisbahn verläuft, die sich bei angenommen durchgehend kreiszylindrischer Bahnführung ergeben würde, und im Bereich des freien Endes des Auslaufs an diesem anliegt.The invention relates to a press arrangement for the treatment of a fibrous web, in particular paper, board or tissue web, in a formed between a shoe press roll and a mating surface, extended in the running direction press nip, the shoe press roll rotatably mounted carrier, a rotating around the support flexible press cover and comprises at least one press shoe supported on the support over which the flexible press jacket against the counter surface pressable and extended in the direction of the mantle over the press nip through an outlet, the press shoe is pushed out in the operating position of the undeformed Pressmantelkontur, pressed the Preßmantel against against the mating surface Preßschuh is guided by this so that it runs in the region of the press nip radially outside an imaginary circular path, which would result in assumed continuous circular cylindrical track guide, and in the region of the free end the outlet is present at this.
In der Regel wird die Faserstoffbahn zusammen mit wenigstens einem Entwässerungsband, beispielsweise einem Filz, durch den Preßspalt geführt.As a rule, the fibrous web is guided through the press nip together with at least one dewatering belt, for example a felt.
Bei den bisher üblichen Pressenanordnungen der eingangs genannten Art läuft der Preßmantel bedingt durch seine Eigensteifigkeit, Fliehkräfte und den Preßmantelinnendruck in einem großen Radius aus dem Preßspalt aus. Die Trennung von Papier und Filz erfolgt entsprechend erst weit außerhalb des Preßspalts, was zur Folge hat, daß die bis zur Trennung vom Filz auftretende Rückbefeuchtung des Papiers insbesondere bei dünneren Papieren wie z.B. bei Tissue-Papieren sehr hoch ist.In the usual press arrangements of the type mentioned above, the press jacket runs due to its inherent rigidity, centrifugal forces and the Preßmantelinnendruck in a large radius from the press nip. Accordingly, the separation of paper and felt takes place only far outside the press nip, with the result that the rewetting of the paper occurring up to the separation from the felt, in particular with thinner papers, such as e.g. is very high on tissue paper.
Hierzu ist es aus der
Des Weiteren beschreibt die
Ziel der Erfindung ist es, eine Pressenanordnung der eingangs genannten Art zu schaffen, bei der eine solche Rückbefeuchtung auf ein Minimum herabgesetzt und mit der entsprechend ein deutlich höherer Trockengehalt der Faserstoffbahn erzielbar ist.The aim of the invention is to provide a press arrangement of the type mentioned, in which such re-wetting is reduced to a minimum and with the correspondingly a significantly higher dry content of the fibrous web is achieved.
Erfindungsgemäß wird diese Aufgabe dadurch gelöst, dass in Mantellaufrichtung betrachtet die Länge des Auslaufes größer als etwa die halbe Länge des Preßspaltes ist und der Preßmantel bei gegen die Gegenfläche gepreßtem Preßschuh durch diesen so geführt ist, daß er im Bereich des Preßspaltes um einen Betrag radial außerhalb der gedachten Kreisbahn verläuft, der im Mittel etwa 1 bis etwa 3 % des Kreisbahndurchmessers entspricht.According to the invention, this object is achieved in that considered in Mantellaufrichtung the length of the spout is greater than about half the length of the press nip and the press cover is guided in pressed against the mating surface Preßschuh by this so that it in the region of the press nip by an amount radially outside the imaginary circular path runs, which corresponds on average about 1 to about 3% of the circular path diameter.
Aufgrund dieser Ausbildung wird erreicht, daß die Rückbefeuchtung durch eine entsprechende Führung des Preßmantels außerhalb des Preßspalts auf ein Minimum reduziert wird, was entsprechend einen deutlich höheren Trockengehalt der Faserstoffbahn mit sich bringt. Nachdem der Preßschuh mit einem längeren Auslauf versehen ist und in Betriebsstellung relativ weit aus der unverformten Preßmantelkontur herausgedrückt wird, liegt der Preßmantel im Betrieb im Bereich des Endes des Auslaufs an und schließt somit den Auslaufbereich luftdicht ab. Da damit ein Hinterlüften dieses Bereichs ausgeschlossen ist, muß der Preßmantel exakt der Auslaufkontur folgen, wodurch eine sofortige Trennung von Filz und Faserstoffbahn außerhalb des Preßspalts bewirkt wird.Due to this design it is achieved that the rewet is reduced by a corresponding leadership of the press jacket outside the press nip to a minimum, which brings correspondingly a much higher dry content of the fibrous web with it. After the press shoe is provided with a longer spout and is pushed out relatively far in the operating position from the undeformed Preßmantelkontur, the press cover is in operation in the region of the end of the spout and thus closes the outlet area airtight. As a back ventilation of this area is thus excluded, the press cover must follow exactly the outlet contour, whereby an immediate separation of felt and fibrous web is effected outside of the press nip.
Bei einer bevorzugten Ausführungsform der erfindungsgemäßen Pressenanordnung ist in Mantellaufrichtung betrachtet die Länge des Auslaufes größer als etwa drei Viertel der Länge des Pressspalts, vorzugsweise größer oder gleich der Länge des Preßspaltes.In a preferred embodiment of the press arrangement according to the invention, the length of the outlet is greater than approximately three quarters of the length of the press nip, preferably greater than or equal to the length of the press nip, as viewed in the machine direction.
Von Vorteil ist, wenn der Preßmantel bei gegen die Gegenfläche gepreßtem Preßschuh durch diesen so geführt ist, daß er im Bereich des Preßspaltes um einen Betrag radial außerhalb der gedachten Kreisbahn verläuft, der im Mittel etwa 1,5 bis etwa 2, 5 % und insbesondere etwa 2 % des Kreisbahndurchmessers entspricht.It is advantageous if the press cover is guided in pressed against the mating surface Preßschuh by this so that it extends in the region of the press nip by an amount radially outside of the imaginary circular path, which averages about 1.5 to about 2, 5% and in particular about 2% of the circular path diameter corresponds.
Der Auslauf kann eine im wesentlichen ebene, dem Preßmantel zugewandte Fläche besitzen.The outlet may have a substantially flat, the press jacket facing surface.
Von Vorteil ist, wenn die vorzugsweise im wesentlichen ebene, dem Preßmantel zugewandte Fläche des Auslaufs mit der am Preßspaltauslauf an die dem Preßmantel zugewandte, den Preßspalt definierende Preßfläche des Preßschuhes angelegten Tangente einen Winkel in Bereich von etwa 18° bildet.It is advantageous if the preferably substantially flat, the Preßmantel facing surface of the outlet with the pressing gap on the side facing the Preßmantel, the press nip defining the pressing surface of the press shoe applied tangent forms an angle in the range of about 18 °.
Die Kontur der dem Preßmantel zugewandten, den Preßspalt definierenden Preßfläche des Preßschuhes ist zweckmäßigerweise an die Kontur der Gegenfläche angepaßt.The contour of the press jacket facing, the press nip defining pressing surface of the press shoe is suitably adapted to the contour of the mating surface.
Die Gegenfläche kann beispielsweise durch eine Gegenwalze gebildet sein. Insbesondere in diesem Fall kann die dem Preßmantel zugewandte, den Preßspalt definierenden Preßfläche des Preßschuhes somit eine allgemein konkave Kontur besitzen.The mating surface may be formed for example by a counter-roller. In particular, in this case, the pressing jacket facing, the press nip defining pressing surface of the press shoe thus have a generally concave contour.
Bei einer zweckmäßigen praktischen Ausführungsform ist der Auslauf an seinem freien Ende allgemein radial nach innen abgebogen. Dabei kann der Preßmantel im vorzugsweise gerundeten Übergangsbereich zum allgemein radial nach innen abgebogenen Ende des Auslaufs an diesem anliegen.In an expedient practical embodiment of the outlet is bent at its free end generally radially inward. In this case, the press cover in the preferably rounded transition region to the generally radially inwardly bent end of the outlet at this rest.
Die Erfindung wird im folgenden anhand eines Ausführungsbeispiels unter Bezugnahme auf die Zeichnung näher erläutert.The invention is explained below with reference to an embodiment with reference to the drawings.
Die einzige Figur der Zeichnung zeigt in schematischer Teildarstellung eine Pressenanordnung 10 zur Behandlung einer Faserstoffbahn in einem zwischen einer Schuhpreßwalze 12 und einer Gegenfläche 14 gebildeten, in Bahnlaufrichtung L verlängerten Preßspalt 16. Bei der (hier nicht dargestellten) Faserstoffbahn kann es sich insbesondere um eine Papier-, Karton- oder Tissuebahn handeln. Sie wird in der Regel zusammen mit wenigstens einem Entwässerungsband (nicht gezeigt), insbesondere einem Filz, durch den verlängerten Preßspalt 16 geführt.The single FIGURE of the drawing shows a schematic partial representation of a
Die Schuhpreßwalze 12 umfaßt einen drehfest gelagerten Träger 18, einen um den Träger 18 umlaufenden flexiblen Preßmantel 20 sowie wenigstens einen am Träger 18 abgestützten Preßschuh 22, über den der flexible Preßmantel 20 gegen die Gegenfläche 14 preßbar ist.The
Wie anhand der einzigen Figur zu erkennen ist, ist der Preßschuh 22 über den Preßspalt 16 hinaus durch einen Auslauf 24 verlängert. Im Betrieb, d.h. bei gegen die Gegenfläche 14 gepreßtem Preßschuh 22, ist der Preßmantel 20 durch diesen so geführt, daß er im Bereich des Preßspaltes 16 radial außerhalb der Kreisbahn 26 verläuft, die sich bei angenommen durchgehend kreiszylindrischer Bahnführung ergeben würde, und im Bereich des freien Endes 28 des Auslaufs 24 an diesem anliegt.As can be seen from the single figure, the
In Mantellaufrichtung LM betrachtet kann die Länge 1A des Auslaufes 24 größer als etwa die halbe Länge 1S des Preßspaltes 16, insbesondere größer als etwa drei Viertel der Länge 1S des Preßspaltes 16 und vorzugsweise größer oder gleich der Länge 1S des Preßspaltes 16 sein. Beim dargestellten Ausführungsbeispiel ist der Auslauf 24 zumindest im wesentlichen gleich lang wie der Preßspalt 16.Viewed in shell direction LM, the length 1 A of the
Zudem ist der Preßmantel 20 im Betrieb, d.h. bei gegen die Gegenfläche 14 gepreßtem Preßschuh 22, durch diesen so geführt, daß er im Bereich des Preßspaltes 16 um einen Betrag a radial außerhalb der gedachten Kreisbahn 26 verläuft. Dieser Betrag a kann im Mittel etwa 1 bis etwa 3 %, insbesondere etwa 1,5 bis etwa 2,5 % und insbesondere etwa 2 % des Durchmessers der gedachten Kreisbahn 26 entsprechen.In addition, the Preßmantel 20 in operation, ie when pressed against the
Der Auslauf 24 kann eine im wesentlichen ebene dem Preßmantel 20 zugewandte Fläche 30 besitzen.The
Im vorliegenden Fall bildet diese vorzugsweise im wesentlichen ebene Fläche 30 des Auslaufs 24 mit der am Preßspaltauslauf 32 an die dem Preßmantel 20 zugewandte, den Preßspalt 16 definierende Preßfläche 34 des Preßschuhes 22 angelegten Tangente 36 einen Winkel α im Bereich von beispielsweise etwa 18°.
Die Kontur der dem Preßmantel 20 zugewandten, den Preßspalt 16 definierenden Preßfläche 34 des Preßschuhes 22 kann an die Kontur der Gegenfläche 14 angepaßt sein.In the present case, this preferably substantially
The contour of the
Im vorliegenden Fall ist diese Gegenfläche 14 durch eine Gegenwalze 38 gebildet. Entsprechend kann die dem Preßmantel 20 zugewandte, den Preßspalt 16 definierende Preßfläche 34 eine allgemein konkave Kontur besitzen.In the present case, this
Im vorliegenden Fall ist der Auslauf 24 an seinem freien Ende 28 allgemein radial nach innen abgebogen. Dabei liegt der Preßmantel 20 in einem vorzugsweise gerundeten Übergangsbereich 40 zum allgemein radial nach innen abgebogenen Auslaufende am Auslauf 24 an.In the present case, the
Durch die gezielte Führung des Preßmantels außerhalb des Preßspaltes wird die Rückbefeuchtung auf ein Minimum reduziert, wodurch sich entsprechend ein deutlich höherer Trockengehalt der Faserstoffbahn ergibt. Der Preßschuh ist mit einem längeren Auslauf versehen und in Betriebsstellung weiter aus der unverformten Mantelkontur herausgedrückt, als dies bei den bisherigen Ausführungen der Fall ist. Dadurch liegt der Preßmantel im Betrieb am Ende des Auslaufs an und schließt somit den Auslaufbereich luftdicht ab. Da somit ein Hinterlüften dieses Bereichs ausgeschlossen ist, muß der Preßmantel exakt der Auslaufkontur folgen, wodurch eine sofortige Trennung von Filz und Faserstoffbahn außerhalb des Preßspaltes bewirkt wird.The targeted guidance of the press jacket outside the press nip, the rewet is reduced to a minimum, resulting in a correspondingly higher dry content of the fibrous web. The press shoe is provided with a longer spout and further pushed out in the operating position of the undeformed shell contour, as is the case in the previous versions. As a result, the press cover is in operation at the end of the outlet and thus closes the outlet area airtight. Since a back ventilation of this area is thus excluded, the press jacket must be exactly the outlet contour follow, causing an immediate separation of felt and fibrous web outside the press nip.
- 1010
- PressenanordnungPress arrangement
- 1212
- Schuhpreßwalzeshoe press
- 1414
- Gegenflächecounter surface
- 1616
- verlängerter Preßspaltextended press nip
- 1818
- drehfester Trägernon-rotating carrier
- 2020
- flexibler Preßmantelflexible press jacket
- 2222
- Preßschuhpress shoe
- 2424
- Auslaufoutlet
- 2626
- Kreisbahnorbit
- 2828
- freies Endefree end
- 3030
- Flächearea
- 3232
- PreßspaltauslaufPreßspaltauslauf
- 3434
- Preßflächepressing surface
- 3636
- Tangentetangent
- 3838
- Gegenwalzebacking roll
- 4040
- gerundeter Übergangsbereichrounded transition area
- aa
- Betragamount
- 1A 1 A
- Länge des AuslaufsLength of the spout
- 1S 1 p
- Länge des PreßspaltesLength of the press nip
- LL
- BahnlaufrichtungWeb direction
- LMLM
- MantellaufrichtungCoat direction
- αα
- Winkelangle
Claims (11)
- Press arrangement (10) for treating a fibrous web, in particular paper, board or tissue web, in a pressure nip (16) formed between a shoe press roll (12) and an opposing surface (14) and extended in the web running direction (L), the shoe press roll (12) comprising a support (18) mounted so as to be fixed against rotation, a flexible press shell (20) revolving around the support (18) and at least one press shoe (22) supported on the support (18), by which the flexible press shell (20) can be pressed against the opposing surface (14) and which is extended beyond the pressure nip (16) in the shell running direction (LM) by an outlet (24), the press shoe (22) being forced out of the non-deformed press shell contour when in the operating position, the press shell (20) being guided by the press shoe (22) when pressed by the latter against the opposing surface (14), in such a way that, in the region of the pressure nip, it extends radially outside an imaginary circular path (26) which would result in the event of assumed continuous circularly cylindrical web guidance, and resting on the outlet (24) in the region of the free end (28) of the latter,
characterized in that,
as viewed in the shell running direction (LM), the length (1A) of the outlet (24) is greater than approximately one half of the length (1S) of the pressure nip (16) and, when the press shoe (22) is pressed against the opposing surface (14), the press shell (20) is guided by the said press shoe (22) in such a way that, in the region of the pressure nip (16), it runs radially outside the imaginary circular path (26) by an amount (a) which on average corresponds to about 1 to about 3% of the circular path diameter. - Press arrangement according to Claim 1, characterized in that, as viewed in the shell running direction (LM), the length (1A) of the outlet (24) is greater than approximately three quarters of the length (1S) of the pressure nip (16), preferably greater than or equal to the length (1S) of the pressure nip (16).
- Press arrangement according to Claim 1 or 2, characterized in that, when the press shoe (22) is pressed against the opposing surface (14), the press shell (20) is guided by the said press shoe (22) in such a way that, in the region of the pressure nip (16), it runs radially outside the imaginary circular path (26) by an amount (a) which on average corresponds to about 1.5 to about 2.5% and in particular about 2% of the circular path diameter.
- Press arrangement according to one of the preceding claims, characterized in that the outlet (24) has a substantially planar surface (30) facing the press shell (20).
- Press arrangement according to one of the preceding claims, characterized in that the preferably substantially planar surface (30) of the outlet (24), facing the press shell, forms an angle (α) in the region of about 18° with the tangent (36) to the pressing surface (34) of the press shoe (22), facing the press shell (20) and defining the pressure nip (16), at the pressure nip outlet (32).
- Press arrangement according to one of the preceding claims, characterized in that the contour of the pressure surface (34) of the press shoe (22), facing the press shell (20) and defining the pressure nip (16), is matched to the contour of the opposing surface (14).
- Press arrangement according to one of the preceding claims, characterized in that the opposing surface (14) is formed by an opposing roll (38).
- Press arrangement according to one of the preceding claims, characterized in that the contour of the pressure surface (34) of the press shoe (22), facing the press shell (20) and defining the pressure nip (16), has a generally concave contour.
- Press arrangement according to one of the preceding claims, characterized in that, at its free end (28), the outlet (24) is generally curved radially inwards.
- Press arrangement according to Claim 9, characterized in that, in the preferably rounded transition region (40) to the generally radially inwardly curved end of the outlet (24), the press shell (20) rests on the latter.
- Press arrangement according to one of the preceding claims, characterized in that the fibrous web is led through the pressure nip (16) together with at least one dewatering belt, in particular a felt.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE10042906 | 2000-08-31 | ||
| DE10042906A DE10042906A1 (en) | 2000-08-31 | 2000-08-31 | Press arrangement |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| EP1186701A2 EP1186701A2 (en) | 2002-03-13 |
| EP1186701A3 EP1186701A3 (en) | 2002-08-28 |
| EP1186701B1 true EP1186701B1 (en) | 2008-04-02 |
Family
ID=7654505
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP01117413A Expired - Lifetime EP1186701B1 (en) | 2000-08-31 | 2001-07-19 | Press arrangement |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US6616813B2 (en) |
| EP (1) | EP1186701B1 (en) |
| BR (1) | BR0104370A (en) |
| CA (1) | CA2356511A1 (en) |
| DE (2) | DE10042906A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AT516329A2 (en) * | 2014-10-24 | 2016-04-15 | Valmet Technologies Inc | HOSE ROLL OF A FIBERMAKING MACHINE |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102004048156A1 (en) * | 2004-10-02 | 2006-04-06 | Voith Paper Patent Gmbh | Pressing device in a press section of a machine for producing a fibrous web |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3708189A1 (en) * | 1987-03-13 | 1988-09-22 | Voith Gmbh J M | LONG NIP ROLLING PRESS |
| DE8805966U1 (en) * | 1988-05-05 | 1989-09-07 | J.M. Voith Gmbh, 7920 Heidenheim | Press section of a machine for producing a fibrous web, in particular a paper web |
| DE3815278A1 (en) | 1988-05-05 | 1989-11-16 | Voith Gmbh J M | PRESS RELEASE OF A MACHINE FOR THE PRODUCTION OF A FIBROUS MATERIAL SHEET, IN PARTICULAR PAPER SHEET |
| US5167768A (en) * | 1991-11-07 | 1992-12-01 | Beloit Corporation | Wide nip web press and method using a press shoe with two pivots |
| SE511203C2 (en) * | 1997-10-14 | 1999-08-23 | Valmet Corp | Long nip press and long nip press shoes for the same |
| US6248210B1 (en) * | 1998-11-13 | 2001-06-19 | Fort James Corporation | Method for maximizing water removal in a press nip |
| SE9804346D0 (en) | 1998-12-16 | 1998-12-16 | Valmet Corp | Method and apparatus for calendering paper |
-
2000
- 2000-08-31 DE DE10042906A patent/DE10042906A1/en not_active Ceased
-
2001
- 2001-07-19 EP EP01117413A patent/EP1186701B1/en not_active Expired - Lifetime
- 2001-07-19 DE DE50113810T patent/DE50113810D1/en not_active Expired - Lifetime
- 2001-08-06 BR BR0104370-6A patent/BR0104370A/en not_active Application Discontinuation
- 2001-08-07 US US09/922,797 patent/US6616813B2/en not_active Expired - Fee Related
- 2001-08-30 CA CA002356511A patent/CA2356511A1/en not_active Abandoned
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AT516329A2 (en) * | 2014-10-24 | 2016-04-15 | Valmet Technologies Inc | HOSE ROLL OF A FIBERMAKING MACHINE |
| AT516329A3 (en) * | 2014-10-24 | 2016-09-15 | Valmet Technologies Inc | HOSE ROLL OF A FIBERMAKING MACHINE |
| AT516329B1 (en) * | 2014-10-24 | 2017-06-15 | Valmet Technologies Inc | HOSE ROLL OF A FIBERMAKING MACHINE |
Also Published As
| Publication number | Publication date |
|---|---|
| DE10042906A1 (en) | 2002-03-14 |
| US6616813B2 (en) | 2003-09-09 |
| EP1186701A2 (en) | 2002-03-13 |
| BR0104370A (en) | 2002-05-21 |
| EP1186701A3 (en) | 2002-08-28 |
| US20020060048A1 (en) | 2002-05-23 |
| DE50113810D1 (en) | 2008-05-15 |
| CA2356511A1 (en) | 2002-02-28 |
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