EP0881327B1 - Pressmantel für eine Pressvorrichtung - Google Patents
Pressmantel für eine Pressvorrichtung Download PDFInfo
- Publication number
- EP0881327B1 EP0881327B1 EP98106892A EP98106892A EP0881327B1 EP 0881327 B1 EP0881327 B1 EP 0881327B1 EP 98106892 A EP98106892 A EP 98106892A EP 98106892 A EP98106892 A EP 98106892A EP 0881327 B1 EP0881327 B1 EP 0881327B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- grooves
- press
- blind holes
- flutes
- press cover
- 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
Links
Images
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
- D21F3/0227—Belts or sleeves therefor
-
- 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
Definitions
- the present invention relates to a press jacket for a Press device for dewatering a material web in one Press nip, in particular a paper web in a shoe press, according to the preamble of claim 1.
- Such a press jacket is known for example from DE-A-4401621.
- Blind holes have a higher storage volume than grooves, however, the disadvantage that a large in the press nip hydraulic pressure is built up. This disadvantage occurs not with grooves, but only a smaller one Have water storage volume.
- the invention has for its object a press jacket of the type mentioned at the outset in such a way that a high level is maintained while maintaining sufficient jacket strength or while ensuring good jacket durability Water storage volume with low hydraulic pressure in the Press nip is given.
- the blind holes ensure a high level Water retention capacity.
- the hydraulic pressure in the press nip is also reduced, because the blind holes over the grooves with the sections are connected before and after the press nip, i.e. on Atmospheric pressure are connected. That in the blind holes Water absorbed can therefore partially through the grooves drain off, so that the emergence of a large hydraulic Pressure in the blind holes is prevented.
- the grooves have a length which is larger than the press nip length. This is always connected to atmospheric pressure.
- the Grooves can also be used across the entire direction of web travel measured press shell length extended grooves and be designed in particular as endless grooves. This is from easy to manufacture and allows connection at the same time several blind holes arranged one behind the other at atmospheric pressure.
- the grooves can be single, double or Form multiple helix.
- Helical grooves are also easy to manufacture and improve also the properties of the roll shell.
- the distances between adjacent blind holes can be in the be essentially the same.
- the distances adjacent blind holes should not differ from each other by more than 10%. This makes the drainage performance special good and even.
- the grooves or grooves parallel to each other.
- the Distances and the width of the grooves or grooves each essentially the same with each other. Even the uniformity the arrangement of the grooves or grooves increases the uniformity the drainage.
- grooves are less than or equal to the diameter of the Blind holes. This ensures that each blind hole is connected to at least one groove or groove.
- the width of the grooves or grooves is preferably smaller or equal to the diameter of the blind holes.
- the blind holes can advantageously the main storage volume for form the water intake.
- the width of the grooves or grooves can be kept low as it is essentially serve to reduce the hydraulic pressure. A water intake from the paper web through the grooves or grooves basically not necessary so that the grooves or grooves can have a very narrow opening.
- the depth the blind holes are greater than the depth of the attached ones Grooves or grooves.
- This configuration is also a result allows the main storage volume through the Blind holes is formed.
- the grooves or grooves can thereby be formed with a shallow depth as long as only it is ensured that sufficient water from the blind holes can flow out of the press nip area to a high Avoid hydraulic pressure. The strength of the press jacket this increases the risk of breakage or cracking reduced.
- the blind holes are arranged along lines whose pitch angle ⁇ B to the web running direction is between 5 ° and approximately 15 °.
- Such an arrangement of the blind holes for drainage has proven to be favorable.
- the strength of the press jacket is relatively little affected by this and the risk of cracks spreading in the web running direction is reduced.
- the grooves or grooves follow a line whose pitch angle ⁇ R corresponds to the pitch angle ⁇ B of the blind holes.
- the grooves or grooves are arranged so that the lines that the blind holes and the grooves or grooves follow coincide. This results in an arrangement in which the grooves or grooves are connected centrally to the blind holes.
- the water drainage is optimal and the press jacket durability is also good.
- the grooves or grooves follow a line whose pitch angle ⁇ R is between 0.1 ° and approx. 3 °.
- the grooves or grooves run at a different angle than the blind holes.
- the connection of the grooves or grooves to the blind holes varies here via the press jacket.
- the open area of the roll shell in the press area is preferably more than 30% of the total area of the press jacket in this area. This advantageously makes a high one Drainage performance guaranteed.
- the Blind holes at least two different diameters.
- the blind holes with different diameters preferably evenly over the surface of the press jacket distributed, in particular by using blind holes Larger and smaller diameters arranged alternately become. This will increase the water absorption without excessive reduction of the webs between the blind holes and thus achieved without too much loss of strength.
- the blind holes 1 of this variant of a press jacket according to the invention are evenly distributed over the surface 2 of the press jacket.
- the blind holes 1 each have essentially the same distances a 1 , a 2 , a 3 from the adjacent blind holes 1.
- the deviation of the distances a 1 to a 3 is approximately 10% or less.
- the blind holes 1 are arranged along lines 3 which enclose an angle ⁇ B with the web running direction 4.
- the angle ⁇ B is preferably between approximately 5 ° and approximately 15 °.
- the grooves or grooves connected to the blind holes 1 are not shown in FIG. 1.
- Fig. 2 shows an embodiment of the press jacket according to the invention, in which the blind holes 1 are also arranged along lines 3, which have an angle between approximately 5 ° and approximately 15 ° to the web running direction.
- the blind holes 1 there are grooves 5, which likewise run along lines 6, which enclose an angle ⁇ R between approximately 5 ° and approximately 15 ° to the web running direction 4.
- the lines 6 coincide with the lines 3, so that the grooves 5 are each connected centrally to the blind holes 1.
- the grooves 5 are at the same distance D from one another and the width b of the grooves is smaller than the diameter d of the blind holes 1 same distance a 1 , a 2 , a 3 .
- the grooves 5 are also parallel to each other arranged at the same distance D.
- the distance D between the edges of adjacent grooves 5 is approximate equal to or less than the diameter d of the blind holes 1.
- the blind holes are not on lines 3 that with the lines 6, along which the grooves 5 extend, coincide, this ensures that each blind hole 1 is connected to at least one groove 5.
- the grooves 5 can be formed in all exemplary embodiments, in particular as endless grooves or as helical grooves.
- the grooves 5 can also form a double or multiple screw line.
- the blind holes 1 can be evenly or randomly distributed over the surface 2 of the press cover. Their depth is preferably greater than the depth of the grooves 5.
- the grooves 5 can also form a small angle ⁇ R with the circumferential direction 4, in particular between approximately 0.1 ° and approximately 0.3 ° ,
- the open area of the roll shell resulting from the sum of the opening cross sections of the blind holes 1 and the grooves 5 is preferably more than 30% of the total area, at least in the area of the press nip.
- the overall result is a press jacket with very good drying properties, because of a very good water absorption and drainage given is.
- the blind holes 1 ensure in particular for a large storage volume and the grooves 5 for removing the water from the press nip, so that the Creation of a high hydraulic pressure in the press nip is avoided.
- the production of the press jacket according to the invention is comparatively simple, and the press jacket is characterized by a high durability.
Landscapes
- Paper (AREA)
Description
- Fig. 1
- eine mögliche Anordnung der Sacklöcher eines erfindungsgemäßen Preßmantels,
- Fig. 2
- eine Draufsicht auf einen Teil einer Variante des erfindungsgemäßen Preßmantels,
- Fig. 3
- eine Draufsicht auf einen Teil noch einer Variante eines erfindungsgemäßen Preßmantels.
- 1
- Sackloch
- 2
- Preßmanteloberfläche
- 3
- Linie
- 4
- Bahnlaufrichtung
- 5
- Nut oder Rille
- 6
- Linie
- b
- Breite von 5
- d
- Durchmesser von 1
- D
- Abstand benachbarter Nuten oder Rillen
- a1
- Sacklochabstand
- a2
- Sacklochabstand
- a3
- Sacklochabstand
Claims (17)
- Pressmantel für eine Pressvorrichtung zur Entwässerung einer Materialbahn in einem Pressspalt, insbesondere einer Papierbahn in einer Schuhpresse, welcher zumindest im Pressbereich mit Sacklöchern (1) zur Wasseraufnahme versehen ist, die in der dem Pressspalt zugewandten Oberfläche (2) des Pressmantels münden, wobei die Sacklöcher (1) an mindestens abschnittsweise in Bahnlaufrichtung (4) erstreckte Nuten (5) angeschlossen sind und die Länge der Nuten (5) in Bahnlaufrichtung (4) größer ist als die Pressspaltlänge,
dadurch gekennzeichnet, dass der Abstand (D) der Nuten oder Rillen (5) von Kante zu Kante benachbarter Nuten beziehungsweise Rillen kleiner oder gleich dem Durchmesser (d) der Sacklöcher (1) ist. - Pressmantel für eine Pressvorrichtung zur Entwässerung einer Materialbahn in einem Pressspalt, insbesondere einer Papierbahn in einer Schuhpresse, nach dem Oberbegriff des Anspruchs 1
dadurch gekennzeichnet, dass die Sacklöcher (1) längs Linien (3) angeordnet sind, deren Steigungswinkel (βB) zur Bahnlaufrichtung (4) zwischen 5° und 15° beträgt, und die Nuten oder Rillen (5) einer Linie (6) folgen, deren Steigungswinkel (αR) zwischen 0,1° und 3° liegt. - Pressmantel für eine Pressvorrichtung zur Entwässerung einer Materialbahn in einem Pressspalt, insbes ndere einer Papierbahn in einer Schuhpresse, nach dem Oberbegriff des Anspruchs 1
dadurch gekennzeichnet, dass die Sacklöcher (1) längs Linien (3) angeordnet sind, deren Steigungswinkel (βB) zur Bahnlaufrichtung (4) zwischen 5° und 15° beträgt, und die Nuten oder Rillen (5) einer Linie (6) folgen, deren Steigungswinkel (αR) mit dem Steigungswinkel (βB) der Sacklöcher (1) übereinstimmt, wobei die Linien (3, 6), denen die Sacklöcher (1) und die Nuten oder Rillen (5) folgen, zusammenfallen. - Pressmantel nach einem der vorhergehenden Ansprüche,
dadurch gekennzeichnet, dass sich die Nuten als über die gesamte in Bahnlaufrichtung (4) gemessene Pressmantellänge erstreckte Rillen (5) ausgebildet sind. - Pressmantel nach Anspruch 4,
dadurch gekennzeichnet, dass die Rillen (5) als Endlosrillen ausgebildet sind. - Pressmantel nach Anspruch 4,
dadurch gekennzeichnet, dass die Rillen (5) schraubenlinienförmig verlaufen. - Pressmantel nach Anspruch 6,
dadurch gekennzeichnet, dass die Rillen (5) eine Zweifach- oder Mehrfachschraubenlinie bilden. - Pressmantel nach einem der vorhergehenden Ansprüche,
dadurch gekennzeichnet, dass die Sacklöcher (1) gleichmäßig über die Manteloberfläche (2) des Pressmantels verteilt angeordnet sind. - Pressmantel nach Anspruch 8,
dadurch gekennzeichnet, dass die Abstände (a1, a2, a3) benachbarter Sacklöcher (1) untereinander im Wesentlichen gleich sind. - Pressmantel nach Anspruch 8 oder 9,
dadurch gekennzeichnet, dass die Abstände (a1, a2, a3) benachbarter Sacklöcher (1) nicht mehr als 10 % voneinander abweichen. - Pressmantel nach einem der vorhergehenden Ansprüche,
dadurch gekennzeichnet, dass die Nuten oder Rillen (5) parallel zueinander verlaufen. - Pressmantel nach einem der vorhergehenden Ansprüche,
dadurch gekennzeichnet, dass die Abstände (D) und die Breite (b) der Nuten oder Rillen (5) jeweils untereinander im Wesentlichen gleich sind. - Pressmantel nach Anspruch 12,
dadurch gekennzeichnet, dass die Breite (b) der Nuten oder Rillen (5) kleiner oder gleich dem Durchmesser (d) der Sacklöcher (1) ist. - Pressmantel nach einem der vorhergehenden Ansprüche,
dadurch gekennzeichnet, dass die Tiefe der Sacklöcher (1) größer ist als die Tiefe der daran angeschlossenen Nuten oder Rillen (5). - Pressmantel nach einem der vorhergehenden Ansprüche,
dadurch gekennzeichnet, dass die offene Fläche des Walzenmantels zumindest im Pressbereich mehr als 30 % der Gesamtfläche ausmacht. - Pressmantel nach einem der vorhergehenden Ansprüche,
dadurch gekennzeichnet, dass die Sacklöcher (1) mindestens zwei unterschiedliche Durchmesser aufweisen. - Pressmantel nach Anspruch 16,
dadurch gekennzeichnet, dass die Sacklöcher (1) mit unterschiedlichem Durchmesser über die Walzenmanteloberfläche gleichmäßig verteilt angeordnet sind.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19722638A DE19722638A1 (de) | 1997-05-30 | 1997-05-30 | Preßmantel für eine Preßvorrichtung |
DE19722638 | 1997-05-30 |
Publications (3)
Publication Number | Publication Date |
---|---|
EP0881327A2 EP0881327A2 (de) | 1998-12-02 |
EP0881327A3 EP0881327A3 (de) | 1999-02-10 |
EP0881327B1 true EP0881327B1 (de) | 2003-06-25 |
Family
ID=7830921
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP98106892A Expired - Lifetime EP0881327B1 (de) | 1997-05-30 | 1998-04-16 | Pressmantel für eine Pressvorrichtung |
Country Status (4)
Country | Link |
---|---|
US (1) | US6029570A (de) |
EP (1) | EP0881327B1 (de) |
JP (1) | JP4868476B2 (de) |
DE (2) | DE19722638A1 (de) |
Families Citing this family (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB9924646D0 (en) * | 1999-10-19 | 1999-12-22 | Voith Fabrics Blackburn Ltd | Improvements in roll covers |
US6884323B2 (en) * | 2003-01-31 | 2005-04-26 | Voith Paper Patent Gmbh | Vented main roll for press assembly in a paper machine |
US7144480B2 (en) * | 2003-04-17 | 2006-12-05 | Albany International Corp. | Grooved belt with rebates |
US7166195B2 (en) * | 2003-07-15 | 2007-01-23 | Albany International Corp. | Grooved and perforated layer for use in papermakers' fabric |
ZA200604530B (en) * | 2003-11-03 | 2008-01-30 | Albany Int Corp | Belt with variable grooves |
US8080137B2 (en) | 2003-11-18 | 2011-12-20 | Albany International Corp. | Shoe press belt having a grooved surface |
CN102277771B (zh) * | 2003-11-18 | 2015-09-09 | 阿尔巴尼国际公司 | 具有沟槽表面的靴形压榨带 |
JP4477025B2 (ja) | 2007-03-12 | 2010-06-09 | イチカワ株式会社 | 抄紙用シュープレスベルト |
DE102009028215B3 (de) | 2009-08-04 | 2010-09-09 | Voith Patent Gmbh | Kombination eines Pressfilzes mit einem Presswalzenbezug und/oder einem Saugwalzenbezug für eine Papiermaschine |
DE102011004565A1 (de) | 2011-02-23 | 2012-08-23 | Voith Patent Gmbh | Pressenpartie einer Maschine zur Herstellung einer Faserstoffbahn |
WO2013037527A2 (de) * | 2011-09-16 | 2013-03-21 | Voith Patent Gmbh | Kombination aus einem walzenbezug oder schuhpressenmantel mit einer papiermaschinenbespannung und verwendung einer derartigen kombination |
PL2685000T3 (pl) * | 2012-07-10 | 2015-12-31 | Essity Operations France | Tkaninopodobna teksturowana włóknina zawierająca włókna papiernicze, walec kalandrujący i sposób jego wytwarzania |
MX2018009154A (es) * | 2016-04-26 | 2018-11-09 | Stowe Woodward Licensco Llc | Rodillo de succion con patron de orificios pasantes y orificios ciegos perforados que mejora la distancia de tierra. |
CN106192535B (zh) * | 2016-07-22 | 2017-11-14 | 福建省联盛纸业有限责任公司 | 一种纸张压榨装置 |
US11098450B2 (en) | 2017-10-27 | 2021-08-24 | Albany International Corp. | Methods for making improved cellulosic products using novel press felts and products made therefrom |
FI128550B (fi) | 2019-01-25 | 2020-07-31 | Valmet Technologies Oy | Kenkäpuristinhihna |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1805780A (en) * | 1926-12-13 | 1931-05-19 | Paper & Textile Machinery Comp | Countersunk suction roll shell |
US3562883A (en) * | 1968-06-26 | 1971-02-16 | Shogo Kobayashi | Suction press roll for papermaking |
US4207998A (en) * | 1977-05-16 | 1980-06-17 | Bachofen & Meier, Maschinenfabrik | Vacuum roller |
US4366025A (en) * | 1981-06-04 | 1982-12-28 | Beloit Corporation | Suction press roll |
DE3708605A1 (de) * | 1987-03-17 | 1988-09-29 | Boettcher Gmbh & Co Felix | Presswalze fuer die entwaesserung von stoffbahnen |
DE3715153A1 (de) * | 1987-05-07 | 1988-12-01 | Voith Gmbh J M | Verstaerkter pressmantel fuer eine presseinrichtung zur behandlung bahnfoermigen gutes, wie z. b. von papierbahnen, sowie verfahren und vorrichtung zu seiner herstellung |
FR2621618A3 (fr) * | 1987-10-09 | 1989-04-14 | Gerland Stowe Woodward Ind | Cylindre de presse pour la fabrication de papier ou pate a papier |
FR2630465A1 (fr) * | 1988-04-20 | 1989-10-27 | Gerland Stowe Woodward Ind Bv | Cylindre de presse pour fabrication de pate a papier ou feuille de papier |
DE4237091A1 (en) * | 1991-11-08 | 1993-05-13 | Voith Gmbh J M | Paper-making press roller - has thinner mantle at axial end zones to allow bending |
DE4401580A1 (de) * | 1994-01-20 | 1994-06-01 | Voith Gmbh J M | Langspaltpresse zum Auspressen einer laufenden Bahn, insbesondere einer Papierbahn |
DE4411621A1 (de) * | 1994-04-02 | 1995-10-05 | Voith Sulzer Papiermasch Gmbh | Preßmantel |
-
1997
- 1997-05-30 DE DE19722638A patent/DE19722638A1/de not_active Withdrawn
-
1998
- 1998-04-16 DE DE59808791T patent/DE59808791D1/de not_active Expired - Lifetime
- 1998-04-16 EP EP98106892A patent/EP0881327B1/de not_active Expired - Lifetime
- 1998-05-28 JP JP14725098A patent/JP4868476B2/ja not_active Expired - Fee Related
- 1998-05-28 US US09/084,901 patent/US6029570A/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
EP0881327A2 (de) | 1998-12-02 |
DE59808791D1 (de) | 2003-07-31 |
EP0881327A3 (de) | 1999-02-10 |
US6029570A (en) | 2000-02-29 |
DE19722638A1 (de) | 1998-12-03 |
JP4868476B2 (ja) | 2012-02-01 |
JPH10328893A (ja) | 1998-12-15 |
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