EP0285081A2 - Rouleau chauffé pour calandre ou appareil de lissage - Google Patents
Rouleau chauffé pour calandre ou appareil de lissage Download PDFInfo
- Publication number
- EP0285081A2 EP0285081A2 EP88105020A EP88105020A EP0285081A2 EP 0285081 A2 EP0285081 A2 EP 0285081A2 EP 88105020 A EP88105020 A EP 88105020A EP 88105020 A EP88105020 A EP 88105020A EP 0285081 A2 EP0285081 A2 EP 0285081A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- roller body
- central bore
- flange
- calender
- roller
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F5/00—Elements specially adapted for movement
- F28F5/02—Rotary drums or rollers
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
- D21F5/00—Dryer section of machines for making continuous webs of paper
- D21F5/02—Drying on cylinders
- D21F5/021—Construction of the cylinders
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
- D21F5/00—Dryer section of machines for making continuous webs of paper
- D21F5/02—Drying on cylinders
- D21F5/022—Heating the cylinders
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21G—CALENDERS; ACCESSORIES FOR PAPER-MAKING MACHINES
- D21G1/00—Calenders; Smoothing apparatus
- D21G1/02—Rolls; Their bearings
- D21G1/0253—Heating or cooling the rolls; Regulating the temperature
- D21G1/0266—Heating or cooling the rolls; Regulating the temperature using a heat-transfer fluid
Definitions
- the invention relates to a heatable calender or calender roll of the type specified in the preamble of claim 1.
- Such a roller emerges from DE-GM 84 36 564, DE-GM 8 410 839 and EU-OS 158 220 based on the two utility models and has a roller body, peripheral bores in the roller body for the flow of a fluid heat carrier, a flange spigot for each end of the roller body, supply and discharge lines for the fluid heat carrier in at least one flange spigot, and cutouts for the distribution of the fluid heat carrier from the supply lines to the peripheral bores and from the peripheral bores to the discharge lines.
- the recesses go from delimiting regions of the end faces from a family of bores diverging along surface lines of a truncated cone, each of which opens into one of the peripheral bores; outside of these mouths, the peripheral channels are closed on both sides by sealing plugs, so that there is an inflow of fluid on the sealing plug and thus a disturbance of the flow, which in turn leads to uneven heat transfers.
- the heat insulation between the roller body and the flange pin leaves something to be desired;
- the thermal expansion of the flange journal on the one hand and of the roller body on the other must be adjusted in order to achieve a targeted deformation of the two journal journals and thereby, for example, to compensate for the "oxbow effect".
- roller according to DE-GM 84 10 839 in which the areas of the end face of the roller body enclosed by the mouths of the peripheral bores, each forming a gap or a recess against the opposite ends extending to the mouths of the peripheral bores Step down the base areas of the flange pins; central supply and discharge lines each lead to these recesses; this should make it possible to heat exactly predetermined jacket areas of the roller body.
- the invention is therefore based on the object of being heated Smoothing or calender roll of the specified type to create, in which the disadvantages mentioned above do not occur.
- a roller is to be created which is very stable, so that the roller body does not show any cracks or even breaks even during extremely long operation.
- the advantages achieved by the invention are based on the fact that the cutouts are not in the end faces of the roller body, but rather in the end faces of the or each flange pin and are delimited on one side by the opposite, essentially flat end face of the roller body.
- This also makes it possible to continue the recesses in the radial direction to the extent that the peripheral bores open directly into the recesses, that is to say the deflection of the flow of the fluid heat transfer medium is gradual and, in particular, no flow to a sealing plug is required.
- the attainable, uniform flow through the end regions of the roller body and the flange pin through the fluid heat transfer medium in turn leads to a very uniform, defined heating in this region, as is required for many applications.
- this spatial configuration of the transition area between the roller body and the flange pin enables very good thermal insulation in this area, in that the inner surfaces of the cutouts are lined with an insulating material, for example made of a heat-insulating plastic; this thermal insulation can extend over the entire inner surface of the supply and / or discharge lines in the flange and over the surfaces of the recess.
- Insulation sleeves made of heat-insulating material can be inserted into the ends of the peripheral bores, the length of which can be matched to the desired operating conditions; because by selecting such insulation sleeves with a certain length, a precisely defined heat transfer between the roller body and the flange pin can be achieved in this area, for example to compensate for the oxbow effect.
- thermal insulation is also provided between the contact surfaces of the flange pin on the one hand and the roller body on the other hand, as is already known from DE-OS 35 18 808.
- This principle can be used for both center rolls and drive rolls; in the case of center rolls, both flange journals are available for the passage of the fluid heat transfer medium, so that no central hole is required in the roll body in this construction; as a rule, however, all roller bodies are produced with a central bore, so that the central bore of the roller body can be closed when used as a central roller.
- a distributor body is attached, for example screwed, to the end face of the roller body on both sides, which prevents the fluid heat carrier from penetrating into the central bore.
- This distributor plate can be provided with flow-guiding blades which serve to redirect the flow from the feed and discharge lines for the fluid carrier in at least one flange pin to and from the peripheral bores; these blades are arranged so that they accelerate the incoming heat transfer medium in the circumferential direction and brake the outgoing heat transfer fluid from its circumferential speed, thereby ensuring a uniform, vortex-free flow, as is known from the earlier patent application P 35 36 236.7-27.
- FIG. 1 shows a central roller, indicated generally by reference number 10, which has a cylindrical roller body 12 and a flange pin 14 on both sides of each roller body 12, of which only the left flange pin can be seen in the figure.
- the flange pin 14 is fastened to the end face of the roller body 12 by means of a screw 18;
- a heat insulation layer 20 is arranged between the two end faces of flange pin 14 and roller body 12, as is already known from DE-OS 3 518 808.
- a web 16 to be treated for example a paper web, is indicated on the outer cylindrical surface of the roller body 12.
- the roller body 12 has an axially extending, central bore 36 as well as a plurality of peripheral bores 35 arranged at equal angular intervals under its lateral surface. For example, eight or sixteen peripheral bores 35 can be provided, which extend over the entire axial length of the roller body 12.
- the end face of the roller body 12 runs largely flat and has only a small shoulder 13 at the transition from the central area of the end face to the outer contact surface for the flange pin, where the thermal insulation layer 20 is located.
- the flange pin 14 is also provided with a central bore 15 which is aligned with the central bore 36 in the roller body 12, but has a somewhat smaller inner diameter; the right end face of the flange pin 14 as shown in FIG. 1 is with provide a recess which begins approximately at the edge of the central bore 15 and extends radially outwards; the radially outer edge of the recess 17 is aligned with the radially outer edge of the peripheral bores 35.
- Both the central bore 15 of the flange pin 14 and the flange-side wall of the recess 17 and the mouth of the peripheral holes 35 are provided with thermal insulation layers, namely with a sleeve 22 made of heat-insulating material which lines the central bore 15, heat-insulating linings 24 and 26 for the recess 17 and finally a sleeve 38 of insulating material which is inserted into the mouth of the peripheral bore 35.
- the length of this sleeve 38 can be adapted to the desired operating conditions and a defined heat transfer can be achieved in this area.
- the central bore 36 is not required for the conduction of the fluid heat carrier.
- the fluid heat transfer medium generally oil or water; if this is not the case, the central bore 36 can be closed by means of a distributor plate 28 which bears against the central region of the end face of the roller body 12, of course with the recess in the peripheral bores 35, and is held by means of a screw 32 which is held in the opposite end wall of the flange pin 14 is screwed.
- a plate 39 made of heat-insulating material is arranged between the distributor plate 28 and the end face of the roller body 12, in order to reduce the heat transfer from the roller body 12 to the flange pin 14.
- the plate 39 also covers the mouth of the central bore 36.
- O-rings 34 seal the gap between the distributor plate 28 and the end face of the roller body 12.
- Flow-conducting blades 30 are welded onto the distributor plate 28, of which only one blade is shown in FIG. 1. These blades 30 are arranged in such a way that they accelerate the incoming heat transfer medium in the circumferential direction and brake the outgoing heat transfer medium from its circumferential speed and stand radially into the flow space, namely the recess 17, before, as is apparent from the earlier application P 35 36 236.7-27.
- FIG. 2 shows the heating side of a drive roller, in which a flange pin is required for the coupling with the drive device; in this case the central bore 36 must be used for the return of the fluid heat carrier.
- a tube 40 is inserted into the central bore 15 of the flange pin 14, which runs coaxially to the wall of the central bore 15 and opens into the central bore 36 of the roller body 12.
- the fluid heat transfer medium on the heating side shown is fed, for example, through the annular gap between the pipe 40 and the inner wall of the central bore 15 and is diverted outward via the recess 17 to the peripheral bores 35, which are not shown in FIG. 2 are.
- the fluid heat transfer medium is supplied from the peripheral bores 35 via a corresponding recess 17 in the end face of the flange pin 14 to the central bore 36 of the roller body 12 and flows back through this central bore 36 until it finally flows through the pipe 40 on the Heating side of the drive roller is passed on again.
- a sleeve 40 made of heat-insulating material is inserted, which in this area reduces the heat transfer from the fluid heat transfer medium in the central bore 36 to the roller body and thus to the flange pin 14.
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Rolls And Other Rotary Bodies (AREA)
- Paper (AREA)
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE3711027 | 1987-04-02 | ||
| DE3711027 | 1987-04-02 | ||
| DE3716223 | 1987-05-14 | ||
| DE19873716223 DE3716223A1 (de) | 1987-04-02 | 1987-05-14 | Beheizbare glaettwerk- oder kalanderwalze |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| EP0285081A2 true EP0285081A2 (fr) | 1988-10-05 |
| EP0285081A3 EP0285081A3 (en) | 1989-03-15 |
| EP0285081B1 EP0285081B1 (fr) | 1990-11-14 |
Family
ID=25854226
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP88105020A Expired - Lifetime EP0285081B1 (fr) | 1987-04-02 | 1988-03-28 | Rouleau chauffé pour calandre ou appareil de lissage |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US4920623A (fr) |
| EP (1) | EP0285081B1 (fr) |
| DE (2) | DE3716223A1 (fr) |
| FI (1) | FI88632C (fr) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3900858A1 (de) * | 1989-01-13 | 1990-07-26 | Kuesters Eduard Maschf | Walze |
| EP0440140A3 (en) * | 1990-01-29 | 1992-01-15 | Schwaebische Huettenwerke Gesellschaft Mit Beschraenkter Haftung | Roll for smoothing apparatus or calender |
| EP0470554A1 (fr) * | 1990-08-09 | 1992-02-12 | Schwäbische Hüttenwerke Gesellschaft mit beschränkter Haftung | Rouleau avec dispositif chauffant |
| EP0369172A3 (fr) * | 1988-11-15 | 1992-02-19 | Schwäbische Hüttenwerke Gesellschaft mit beschränkter Haftung | Cylindre chauffé ou refroidi |
| EP0606660A1 (fr) * | 1993-01-12 | 1994-07-20 | Walzen Irle GmbH | Rouleau chauffé |
| WO1994025670A1 (fr) * | 1993-04-23 | 1994-11-10 | SCHWäBISCHE HüTTENWERKE GMBH | Cylindre chauffant |
| WO2000053847A1 (fr) * | 1999-03-05 | 2000-09-14 | Walzen Irle Gmbh | Rouleau de calandre chauffable |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3909134A1 (de) * | 1989-03-20 | 1990-10-04 | Troester Maschf Paul | Dichtungsplatten-kalander |
| DE4213484A1 (de) * | 1992-04-24 | 1993-10-28 | Voith Gmbh J M | Axial vorgespannte Glättwerkswalze |
| US6158501A (en) * | 1993-10-20 | 2000-12-12 | Valmet Corporation | Thermally insulated roll and insulation assembly for a thermoroll |
| DE19513500C2 (de) * | 1995-04-10 | 1998-05-14 | Schwaebische Huettenwerke Gmbh | Walze mit einstellbarer Form |
| US6793754B1 (en) | 1999-07-28 | 2004-09-21 | Advanced Materials Corporation | Covered roll having an under-layer formed of resin infused densely packed fibers that provides increased strength and adhesion properties |
| US6206994B1 (en) | 1999-07-28 | 2001-03-27 | Advanced Materials Corporation | Method and apparatus for covering a metal roll core with a polymeric material preferable a high performance thermoplastic material |
| US6776744B1 (en) | 1999-07-28 | 2004-08-17 | Advanced Materials Corporation | Method for and devices used in covering a roll core with a resin infused fiber reinforced adhesive under layer and a polymeric top layer, the method including the use of an improved mold tape |
| DE102004006514A1 (de) * | 2004-02-10 | 2005-08-25 | Voith Paper Patent Gmbh | Verfahren zur Beheizung einer Walze sowie beheizbare Walze |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE8410839U1 (de) * | 1984-07-19 | Walzen Irle GmbH, 5902 Netphen | Mittels eines Wärme übertragenden Mediums beheizbare Kalanderwalze | |
| DE8436564U1 (de) * | 1985-03-28 | Walzen Irle GmbH, 5902 Netphen | Mittels eines Wärme übertragenden Mediums beheizbare Kalanderwalze | |
| US2498662A (en) * | 1946-12-31 | 1950-02-28 | Armstrong Cork Co | Calender roll |
| US2912556A (en) * | 1958-05-02 | 1959-11-10 | Farrel Birmingham Co Inc | Electrically heated roll for calenders or the like |
| US3447600A (en) * | 1966-09-23 | 1969-06-03 | Sw Ind Inc | Construction of roll for machinery and the manufacture thereof |
| DE2844051C3 (de) * | 1978-10-10 | 1982-01-28 | Küsters, Eduard, 4150 Krefeld | Verfahren zum Kühlen eines Walzenpaars sowie Kalander zur Durchführung des Verfahrens |
| DE3304076A1 (de) * | 1983-02-07 | 1984-08-09 | Schwäbische Hüttenwerke GmbH, 7080 Aalen | Walze grosser abmessungen fuer maschinen zur herstellung von endlosem bahnmaterial |
| ATE83515T1 (de) * | 1984-04-06 | 1993-01-15 | Walzen Irle Gmbh | Mittels eines waerme uebertragenden mediums beheizbare kalanderwalze. |
| DE3518808A1 (de) * | 1985-05-24 | 1986-11-27 | Schwäbische Hüttenwerke GmbH, 7080 Aalen | Beheizbare glaettwerk- und kalanderwalze |
| DE3536236A1 (de) * | 1985-10-10 | 1987-04-16 | Schwaebische Huettenwerke Gmbh | Beheizbare glaettwerk- oder kalanderwalze |
-
1987
- 1987-05-14 DE DE19873716223 patent/DE3716223A1/de active Granted
-
1988
- 1988-03-28 DE DE8888105020T patent/DE3861039D1/de not_active Expired - Lifetime
- 1988-03-28 EP EP88105020A patent/EP0285081B1/fr not_active Expired - Lifetime
- 1988-03-31 FI FI881548A patent/FI88632C/fi not_active IP Right Cessation
-
1989
- 1989-08-30 US US07/401,515 patent/US4920623A/en not_active Expired - Lifetime
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0369172A3 (fr) * | 1988-11-15 | 1992-02-19 | Schwäbische Hüttenwerke Gesellschaft mit beschränkter Haftung | Cylindre chauffé ou refroidi |
| DE3900858A1 (de) * | 1989-01-13 | 1990-07-26 | Kuesters Eduard Maschf | Walze |
| EP0440140A3 (en) * | 1990-01-29 | 1992-01-15 | Schwaebische Huettenwerke Gesellschaft Mit Beschraenkter Haftung | Roll for smoothing apparatus or calender |
| EP0470554A1 (fr) * | 1990-08-09 | 1992-02-12 | Schwäbische Hüttenwerke Gesellschaft mit beschränkter Haftung | Rouleau avec dispositif chauffant |
| EP0606660A1 (fr) * | 1993-01-12 | 1994-07-20 | Walzen Irle GmbH | Rouleau chauffé |
| WO1994025670A1 (fr) * | 1993-04-23 | 1994-11-10 | SCHWäBISCHE HüTTENWERKE GMBH | Cylindre chauffant |
| US5662572A (en) * | 1993-04-23 | 1997-09-02 | Schwabische Huttenwerke Gmbh | Heating roller |
| WO2000053847A1 (fr) * | 1999-03-05 | 2000-09-14 | Walzen Irle Gmbh | Rouleau de calandre chauffable |
| US7174949B1 (en) | 1999-03-05 | 2007-02-13 | Walzen Irle Gmbh | Heatable calender roll |
Also Published As
| Publication number | Publication date |
|---|---|
| FI88632C (fi) | 1993-06-10 |
| EP0285081B1 (fr) | 1990-11-14 |
| FI881548A0 (fi) | 1988-03-31 |
| FI881548A7 (fi) | 1988-10-03 |
| FI88632B (fi) | 1993-02-26 |
| EP0285081A3 (en) | 1989-03-15 |
| DE3861039D1 (de) | 1990-12-20 |
| DE3716223A1 (de) | 1988-10-13 |
| US4920623A (en) | 1990-05-01 |
| DE3716223C2 (fr) | 1991-10-24 |
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