DE10254097A1 - Press mantle for the extraction of water from a wet web, of paper or cardboard or tissue, has grooves in a spiral with intersections in the peripheral direction, and deeper blind drillings - Google Patents
Press mantle for the extraction of water from a wet web, of paper or cardboard or tissue, has grooves in a spiral with intersections in the peripheral direction, and deeper blind drillings Download PDFInfo
- Publication number
- DE10254097A1 DE10254097A1 DE2002154097 DE10254097A DE10254097A1 DE 10254097 A1 DE10254097 A1 DE 10254097A1 DE 2002154097 DE2002154097 DE 2002154097 DE 10254097 A DE10254097 A DE 10254097A DE 10254097 A1 DE10254097 A1 DE 10254097A1
- Authority
- DE
- Germany
- Prior art keywords
- grooves
- press
- press jacket
- jacket
- spiral
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
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
- D21F3/08—Pressure rolls
- D21F3/086—Pressure rolls having a grooved surface
Landscapes
- Paper (AREA)
Abstract
Description
Die Erfindung betrifft einen Pressmantel zur Entwässerung einer Papier-, Karton-, Tissue- oder einer anderen Faserstoffbahn in einer Maschine zur Herstellung und/oder Veredlung derselben, dessen äußere Mantelfläche spiralförmige, um den Walzenmantel verlaufende Rillen besitzt.The invention relates to a press jacket for drainage a paper, cardboard, tissue or other fibrous web in a machine for producing and / or refining the same, whose outer surface is spiral, um the roller jacket has grooves.
Derartige Pressmäntel sind seit längerem bekannt und haben die Aufgabe im Pressspalt möglichst viel von dem, aus der Faserstoffbahn ausgepressten Wasser aufzunehmen und aus dem Pressspalt zu transportieren. Hierbei helfen die Rillen, wobei Abstand, Breite und Tiefe der Rillen von der Festigkeit des Pressmantels begrenzt werden.Such press sleeves have been known for a long time and have the task in the press nip as much as possible of that from which Fibrous web to absorb squeezed water and from the press nip to transport. The grooves help here, with distance, width and depth of the grooves is limited by the strength of the press casing become.
Zunehmend schränkt die Wasseraufnahmefähigkeit des Pressmantels jedoch die Entwässerungsleistung der Presse ein.The water absorption capacity is increasingly restricting of the press jacket, however, the drainage performance the press.
Die Aufgabe der Erfindung ist es daher die Wasseraufnahmefähigkeit des Pressmantels mit möglichst einfachen Mitteln zu vergrößern.The object of the invention is hence the water absorption capacity the press jacket with if possible simple means to enlarge.
Erfindungsgemäß wurde die Aufgabe dadurch gelöst, dass die Mantelfläche mehrere, sich kreuzende Rillen aufweist.According to the invention, the object was thereby solved, that the outer surface has several intersecting grooves.
Ohne die Festigkeit des Pressmantels zu stark zu beeinträchtigen kann so die offene Rillenfläche und damit auch die Wasseraufnahmefähigkeit erheblich vergrößert werden.Without the strength of the press jacket affect too much so can the open groove surface and thus the water absorption capacity can be increased considerably.
Dabei sollte der Winkel der Rillen bezüglich der Umfangsrichtung jeweils konstant sein.It should be the angle of the grooves regarding the Circumferential direction to be constant.
Um die Mantelfläche optimal ausnutzen zu können, sollten die Rillen symmetrisch angeordnet werden. Dies bedeutet auch, dass der Betrag des Winkels der sich kreuzenden Rillen bezüglich der Umfangsrichtung gleich ist.In order to be able to make optimum use of the outer surface, the grooves are arranged symmetrically. This also means that the amount of the angle of the intersecting grooves with respect to the circumferential direction is equal to.
Für den Abbau des im Pressspalt entstehenden, hydraulischen Drucks über die Rillen, hat es sich als vorteilhaft erwiesen, wenn der Betrag des Winkels der Rillen bezüglich der Umfangsrichtung zwischen 30° und 45°, vorzugsweise bei etwa 45° liegt.For the reduction of the hydraulic pressure arising in the press nip via the Creasing, it has proven beneficial if the amount of the Angle of the grooves with respect the circumferential direction between 30 ° and 45 °, preferably is about 45 °.
Die Wasseraufnahmefähigkeit kann noch weiter vergrößert werden, wenn die äußere Mantelfläche des Pressmantels neben den Rillen auch Blindbohrungen besitzt.The water absorption capacity can be enlarged even further if the outer surface of the Press casing also has blind holes in addition to the grooves.
Dabei kann zumindest ein Teil der Blindbohrungen in den Kreuzungspunkten der und/oder zwischen den Rillen angeordnet werden.At least part of the Blind holes in the intersections of and / or between the Grooves are arranged.
In der Regel sollte der Abstand zwischen den Spiralen einer Rille zwischen 2,5 und 3,0 mm liegen. Insbesondere dann, wenn die Blindbohrungen zwischen den Rillen angeordnet werden, sollte jedoch zur Gewährleistung einer ausreichenden Festigkeit der Abstand zwischen den Spiralen einer Rille zwischen 3,0 und 3,5 mm liegen.As a rule, the distance between the spirals of a groove are between 2.5 and 3.0 mm. In particular when the blind holes are placed between the grooves, should, however, to ensure sufficient strength the distance between the spirals a groove between 3.0 and 3.5 mm.
Nachfolgend soll die Erfindung an einem Ausführungsbeispiel näher erläutert werden. In der beigefügten Zeichnung zeigt:The invention is intended to be described below an embodiment are explained in more detail. In the accompanying Drawing shows:
Der Pressmantel
In Papiermaschinen wird die Faserstoffbahn zur Entwässerung im allgemeinen gemeinsam mit zumindest einen Pressfilz durch zumindest einen derartigen Pressspalt geführt. Das dabei ausgepresste Wasser gelangt in den Pressfilz und wird von diesem aus dem Pressspalt geführt.In paper machines, the fibrous web becomes drainage generally together with at least one press felt by at least led such a press nip. The water squeezed out gets into the press felt and is from it led out of the press nip.
Damit auch die Presswalze Wasser
aufnehmen und abführen
kann, hat deren Mantelfläche
Rillen
Gemäß
Diese Anordnung erlaubt eine Maximierung der
offenen Fläche
des Pressmantels
Um die offene Fläche noch weiter zu vergrößern, besitzt
der Pressmantel
Wie in
Claims (10)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE2002154097 DE10254097A1 (en) | 2002-11-20 | 2002-11-20 | Press mantle for the extraction of water from a wet web, of paper or cardboard or tissue, has grooves in a spiral with intersections in the peripheral direction, and deeper blind drillings |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE2002154097 DE10254097A1 (en) | 2002-11-20 | 2002-11-20 | Press mantle for the extraction of water from a wet web, of paper or cardboard or tissue, has grooves in a spiral with intersections in the peripheral direction, and deeper blind drillings |
Publications (1)
Publication Number | Publication Date |
---|---|
DE10254097A1 true DE10254097A1 (en) | 2004-07-22 |
Family
ID=32518798
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE2002154097 Withdrawn DE10254097A1 (en) | 2002-11-20 | 2002-11-20 | Press mantle for the extraction of water from a wet web, of paper or cardboard or tissue, has grooves in a spiral with intersections in the peripheral direction, and deeper blind drillings |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE10254097A1 (en) |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0100085A2 (en) * | 1982-07-30 | 1984-02-08 | Rudolf Dietl | Roll, particularly a roll for a paper making machine |
DE4340724A1 (en) * | 1993-11-30 | 1995-06-01 | Sigri Great Lakes Carbon Gmbh | Fiber-reinforced plastic roller with diamond pattern |
DE4411621A1 (en) * | 1994-04-02 | 1995-10-05 | Voith Sulzer Papiermasch Gmbh | Long-life abrasion-proof pressing cover to drain water from paper web |
-
2002
- 2002-11-20 DE DE2002154097 patent/DE10254097A1/en not_active Withdrawn
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0100085A2 (en) * | 1982-07-30 | 1984-02-08 | Rudolf Dietl | Roll, particularly a roll for a paper making machine |
DE4340724A1 (en) * | 1993-11-30 | 1995-06-01 | Sigri Great Lakes Carbon Gmbh | Fiber-reinforced plastic roller with diamond pattern |
DE4411621A1 (en) * | 1994-04-02 | 1995-10-05 | Voith Sulzer Papiermasch Gmbh | Long-life abrasion-proof pressing cover to drain water from paper web |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
OM8 | Search report available as to paragraph 43 lit. 1 sentence 1 patent law | ||
8127 | New person/name/address of the applicant |
Owner name: VOITH PATENT GMBH, 89522 HEIDENHEIM, DE |
|
8141 | Disposal/no request for examination |