EP3017110A1 - Drying roller and a method for the production of same - Google Patents
Drying roller and a method for the production of sameInfo
- Publication number
- EP3017110A1 EP3017110A1 EP14727515.0A EP14727515A EP3017110A1 EP 3017110 A1 EP3017110 A1 EP 3017110A1 EP 14727515 A EP14727515 A EP 14727515A EP 3017110 A1 EP3017110 A1 EP 3017110A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- cylinder jacket
- weld
- lids
- lid
- drying 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
- 238000001035 drying Methods 0.000 title claims abstract description 55
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 14
- 238000000034 method Methods 0.000 title description 9
- 238000003466 welding Methods 0.000 claims abstract description 12
- 230000007704 transition Effects 0.000 claims description 28
- 238000007689 inspection Methods 0.000 claims description 14
- 239000011324 bead Substances 0.000 claims description 8
- 239000003990 capacitor Substances 0.000 claims description 8
- 125000006850 spacer group Chemical group 0.000 claims description 7
- 239000000123 paper Substances 0.000 description 15
- 238000012360 testing method Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 3
- 238000010998 test method Methods 0.000 description 3
- 238000002604 ultrasonography Methods 0.000 description 3
- 239000011111 cardboard Substances 0.000 description 2
- 239000006249 magnetic particle Substances 0.000 description 2
- 230000035515 penetration Effects 0.000 description 2
- 229910000975 Carbon steel Inorganic materials 0.000 description 1
- 229910001018 Cast iron Inorganic materials 0.000 description 1
- 229910001208 Crucible steel Inorganic materials 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 239000010962 carbon steel Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000001186 cumulative effect Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000006247 magnetic powder Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 238000003801 milling Methods 0.000 description 1
- 239000011087 paperboard Substances 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000000284 resting effect Effects 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 230000008719 thickening Effects 0.000 description 1
Classifications
-
- 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
- D21F5/028—Heating the cylinders using steam
-
- 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
Definitions
- the invention relates to drying rollers, which consist at least of a cylindrical cylinder jacket, two attached on both sides of the cylinder jacket covers and two indirectly via a hollow shaft connected to the lids or directly attached to the lids pin, wherein the cylinder jacket and the lid by a annular weld welded together.
- a drying roller or drying cylinder for the drying of webs of pulp or paper which comprises a jacket and arranged at the ends of the jacket lid.
- the sheat seam on the side facing away from the jacket edge on a transition piece, seen in an axial section through the cylinder in the seam region has approximately the strength of the shell, wherein the transition piece and the sheath in Seam area have a steady course.
- US 2010/0132903 A1 shows a steel-made drying roll of similar construction in which lids are welded to the ends of a cylinder jacket by means of a circumferential weld formed between opposed surfaces of each of the lids and the cylinder jacket ,
- the weld consists of a recess of U-shaped cross-section open towards the outer surface of the cylinder jacket, which is formed by respective depressions between a respective end of the cylinder jacket and one of the lids and filled by welding material, whereby a counter-bead forms on the inner surface of the cylinder jacket at the level of the recess is provided.
- the invention is based on the common inventive basic idea to ensure the quality of the weld seam between cylinder jacket and cover by a suitable design of the cylinder jacket and the cover in the vicinity of the weld.
- a drying roller may consist of at least one cylindrical cylinder jacket, two lids attached to both sides of the cylinder jacket, and two indirectly via a hollow shaft connected to the lids or pins secured directly to the lids, the cylinder jacket and lids being formed by an annular weld welded together, and wherein the weld has a joint with at least two mutually opposite and spaced parallel flank regions.
- Such a drying roller may be adapted for various uses during papermaking or for drying various types of paper.
- the drying roller may in particular be a so-called Yankee roller, which is provided for drying so-called tissue papers or tissue papers or soft papers.
- so-called MG-rollers ⁇ machine glazed) for the production of machine-smooth papers are executable with such drying rollers.
- the drying roller can be used in the production of cardboard papers or graphic papers.
- Yankee rolls and MG rolls have two spigots attached indirectly via a hollow shaft connected to the covers, while dry rolls for producing cardboard papers or graphic papers often have spigots secured directly to the covers.
- the material to be dried such as paper or paperboard
- the material to be dried usually has direct contact with the outer surface of the cylinder jacket, which may at least partially have a smooth surface on the inside or at least partially be provided with one or more grooves can, which can also be provided in bead-like thickening, to counteract loads that may act on the drying roller of external pressure rollers or cylinders.
- the cover of the drying roller may be disc-shaped.
- at least one of the lids may be a flat disk.
- at least one of the lids can also have a curved shape, for example similar to a dished bottom or basket bottom, or be formed with a semi-elliptical cross section.
- the hollow shaft may be provided for mounting the drying roller, wherein it reduces a force acting on the cylinder jacket or the cover voltage.
- the hollow shaft is of cylindrical shape with flat or conical end portions. It may be integral or multi-piece with two or more interconnected, for example, welded, soldered, bolted, locked or formed by bolt segments formed.
- the hollow shaft is formed integrally with the pins.
- the pins are usually used in corresponding bearings or bearing housings, which support the entire arrangement of the drying roller and allow a rotational movement of the drying roller.
- components of the drying roller of different materials and in particular of metals such as steel, stainless steel, carbon steel, cast steel or cast iron can be made.
- the weld is welded without counter-bead, which improves the process reliability in the manufacture of the weld because the weld is particularly simple.
- a drying roller may consist of at least one cylindrical cylinder jacket, two lids attached to both sides of the cylinder jacket, and two indirectly via a hollow shaft connected to the lids or pins fastened directly to the lids, the cylinder jacket and the lids being formed by an annular weld are welded together, wherein the radially inner workpiece surfaces of both the lid and the cylinder jacket are formed on both sides of the weld cylindrical and wherein in at least one lid a closable or closed inspection opening is provided.
- the inspection opening may be identical to a hole for the hollow shaft or the pins.
- a further opening for the hollow shaft or the pins may be provided in addition to the inspection opening.
- the inspection opening can be designed as a manhole.
- the drying roller at least from a cylindrical cylinder jacket, consist of two attached on both sides of the cylinder jacket covers and two indirectly via a hollow shaft connected to the covers or directly attached to the lids pin, wherein the cylinder jacket and the lid by an annular weld are welded together, wherein the radially inner workpiece surface of the cylinder jacket between a condenser and the weld is cylindrical.
- the capacitor has one, preferably a plurality, circumferential grooves.
- a machined transition radius and / or a transitional groove preferably with at least one machined transition radius between groove flank of the transition groove and groove bottom of the transition groove, is provided between the cylindrical inner workpiece surface of the cylinder jacket and the condenser.
- the transition radius and / or the transition groove can be made in particular by means of milling or turning.
- a distance between the respective lid to be welded and the cylinder jacket via at least one spacer can be defined before welding the lid with the cylinder jacket to this Way to provide a reliable weld.
- this method makes it possible to produce a drying roller with a peripheral weld seam between the cylinder jacket and the cover, which has a joint with at least two mutually opposite and mutually spaced parallel flank regions.
- the lid to be welded first and the cylinder jacket are tacked together by tack welding and then first welded together by means of welding beads.
- the tack weld allows pre-fixing of the cover to the cylinder jacket, before it comes to the final connection by welding over weld beads. Inaccuracies in the positioning of the lid can be corrected in this way before the final welding.
- the spacer may be a spacer ring which ensures a constant equal distance between the cover and the cylinder jacket along the circumference of the dryer roll.
- ring segments or separate spacers with a defined width can alternatively be used.
- a drying roller at least consisting of a cylindrical cylinder jacket, two on both sides of the cylinder jacket attached lids and two indirectly via a hollow shaft connected to the lids or directly attached to the lids pin, wherein the cylinder jacket and the Lid are welded together by an annular weld, after welding the lid with the cylinder jacket, the weld through an inspection opening are checked from the inside.
- the overall reliability of the weld is increased because faulty welds can be repaired immediately.
- a variety of test methods can be used.
- the radially inner workpiece surfaces of both the lid and the cylinder jacket are cylindrical on both sides of the weld seam.
- Suitable inspection devices may be, for example, X-ray devices or ultrasound devices.
- inspections may be performed, for example, by means of dye penetrant tests or magnetic particle inspections or other methods.
- Figure 1 is a schematic illustration of a drying roller
- FIG. 2 shows a partial region of the illustration of FIG. 1
- FIG. 3 shows an illustrated portion of a drying roller with a
- FIG. 4 shows an illustrated portion of a drying roller with a stepped transition groove in a similar representation as Figures 2 and 3.
- the drying roller 1 further comprises a extending between the covers 3 and provided with through holes hollow shaft 5.
- a pin 6 is provided on an outer surface of each of the lid 3, so that the overall result is an axisymmetric structure of the drying roller 1.
- the drying roller 1 can be rotatably supported about the longitudinal axis 7 in suitable bearings, which are not shown in FIG.
- the outer surface of the cylinder jacket 2 is at least partially wrapped by paper to be dried or paper to be dried is on the Outer surface of the cylinder jacket 2 launched.
- pressure rollers press the paper placed against the cylinder shell 2.
- hot steam at a pressure of usually 3 to 8 bar, which may be up to 12 bar or more, passed into the interior 4.
- FIG. 2 a partial region of the drying roller 1 designated by A in FIG. 1 is enlarged and shown in cross-section, part of one of the covers 3 and a part of the cylinder jacket 2 and between these two the weld seam 8 already mentioned above see are.
- FIG. 2 it can be seen, in particular, that mutually facing surfaces of both the cover 3 and the cylinder jacket 2 have flank regions 9 which are inclined relative to one another and second flank regions 10 which are mutually parallel and spaced from one another.
- An end portion 11 of the cylinder jacket facing the weld seam 8 is cylindrical in shape on a surface facing the interior space 4, ie. free of elevations or depressions, trained.
- a conical formed as a capacitor 12 the interior 4 towards thickened section with a plurality of circumferentially extending and along the longitudinal axis 7 successively arranged grooves 13 connects.
- a transition between the end portion 11 to the capacitor 12 has a transition radius 14.
- the cover 3 is also cylindrical in the area of the weld seam 8 toward the interior 4, so that the radially inner workpiece surfaces of both the cover 3 and the cylinder jacket 2 are cylindrical on both sides of the weld seam 8.
- the weld 8 As a result of opening into the interior 4 towards groove-shaped portion, it is possible to provide the weld 8 with a substantially V-shaped cross-section with a counter-bead.
- the cylindrical end portion 11 and the both sides of the weld 8 cylindrical radially inner workpiece surfaces of both the lid 3 and the cylinder jacket 2, the weld 8 allows easy visually or by a suitable test method, for example, X-rays or ultrasound, or by means of dye penetrant or magnetic powder tests.
- the weld 8 can also be formed with a U-shaped, K-shaped, X-shaped, double U-shaped or differently shaped cross-section.
- a circumferential transition groove 15 is formed instead of a radius for the transition from the cylindrical end section 11 to the condenser 12.
- Their depth is in the present case equal to the depth of the grooves 13 of the capacitor 12, but it may also have a different depth than the grooves 13.
- a wide step-like Transition groove 16 is formed. Their width is limited only by the width of the end portion 11. Between each of the longitudinal axis 7 perpendicular groove flanks of the transition groove 16 and a parallel to the longitudinal axis 7 groove bottom of the transition groove 16 a transition radius 17 is provided in each case.
- Drying roller 10 Second flank area Cylinder shell 11 End section Lid 12 Capacitor
Landscapes
- Drying Of Solid Materials (AREA)
- Rolls And Other Rotary Bodies (AREA)
Abstract
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP17153733.5A EP3196356B1 (en) | 2013-07-05 | 2014-06-02 | Drying roller |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102013213194 | 2013-07-05 | ||
PCT/EP2014/061330 WO2015000647A1 (en) | 2013-07-05 | 2014-06-02 | Drying roller and a method for the production of same |
Related Child Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP17153733.5A Division EP3196356B1 (en) | 2013-07-05 | 2014-06-02 | Drying roller |
EP17153733.5A Division-Into EP3196356B1 (en) | 2013-07-05 | 2014-06-02 | Drying roller |
Publications (2)
Publication Number | Publication Date |
---|---|
EP3017110A1 true EP3017110A1 (en) | 2016-05-11 |
EP3017110B1 EP3017110B1 (en) | 2017-04-12 |
Family
ID=50877293
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP17153733.5A Active EP3196356B1 (en) | 2013-07-05 | 2014-06-02 | Drying roller |
EP14727515.0A Active EP3017110B1 (en) | 2013-07-05 | 2014-06-02 | Drying roller and a method for the production of same |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP17153733.5A Active EP3196356B1 (en) | 2013-07-05 | 2014-06-02 | Drying roller |
Country Status (4)
Country | Link |
---|---|
US (2) | US10066340B2 (en) |
EP (2) | EP3196356B1 (en) |
CN (1) | CN105358762B (en) |
WO (1) | WO2015000647A1 (en) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2016147112A1 (en) * | 2015-03-18 | 2016-09-22 | A. Celli Paper S.P.A. | Yankee dryer cylinder with improved internal geometry |
ITUB20151129A1 (en) * | 2015-05-27 | 2016-11-27 | Celli Mauro | Method of producing an improved Yankee cylinder |
JP2018518606A (en) * | 2015-06-23 | 2018-07-12 | ア チエリ パペル ソチエタ ペル アチオーニ | How to assemble Yankee dryer cylinder |
SE541319C2 (en) * | 2017-11-22 | 2019-07-02 | Valmet Oy | An intermediate product in the manufacturing process of a yankee drying cylinder |
EP3556936B1 (en) * | 2018-04-17 | 2020-04-29 | Valmet Aktiebolag | Method for manufacturing a steel-made yankee cylinder |
DE102018119489A1 (en) | 2018-08-10 | 2019-06-27 | Voith Patent Gmbh | drying roll |
EP4377511A1 (en) * | 2021-07-27 | 2024-06-05 | A.Celli Paper S.P.A. | A cylinder for machinery for manufacturing cellulose plies |
Family Cites Families (40)
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US1946494A (en) * | 1934-02-13 | Tank construction | ||
US1655931A (en) * | 1926-03-13 | 1928-01-10 | Smith Corp A O | Oil-refining still and method of making the same by electric-arc welding |
US1736539A (en) * | 1927-10-14 | 1929-11-19 | Bethlehem Steel Corp | Welded and calked body and process of producing same |
US1872240A (en) * | 1929-07-31 | 1932-08-16 | Smith Corp A O | Spacer strip for electric welding |
US1810825A (en) * | 1929-09-06 | 1931-06-16 | Smith Corp A O | Welded pipe joint and method of making same |
US1987341A (en) * | 1931-07-15 | 1935-01-08 | Youngstown Sheet And Tube Co | Method of making pipe joints |
US2179774A (en) * | 1935-12-07 | 1939-11-14 | Smith Corp A O | Welded pressure vessel |
US2328321A (en) * | 1939-07-31 | 1943-08-31 | Beloit Iron Works | Drier drum |
DE1095089B (en) | 1957-04-04 | 1960-12-15 | Sulzer Ag | Butt weld connection |
US3061944A (en) * | 1959-04-15 | 1962-11-06 | Kimberly Clark Co | Papermaking machine |
US3116985A (en) * | 1960-07-26 | 1964-01-07 | Kimberly Clark Co | Papermaking drying drum |
US3116965A (en) | 1963-08-27 | 1964-01-07 | Union Carbide Corp | Silatrioxane tanned leather and the production thereof |
US3299531A (en) * | 1964-08-21 | 1967-01-24 | Kimberly Clark Co | Papermaking machine |
US3365566A (en) * | 1965-08-17 | 1968-01-23 | Benedict A. Kuder | Welding process |
DE1910674A1 (en) * | 1969-03-03 | 1970-09-10 | Dynamit Nobel Ag | Welding of explosive clad sheets |
US3633662A (en) | 1970-01-16 | 1972-01-11 | Beloit Corp | Dryer drum assembly |
US3733686A (en) * | 1971-10-27 | 1973-05-22 | Du Pont | Method for welding titanium clad steel |
US3773614A (en) * | 1971-11-05 | 1973-11-20 | Improved Machinery Inc | Drum comprising support mounted grid structure |
US3781957A (en) * | 1972-09-15 | 1974-01-01 | Improved Machinery Inc | Drum including annular grid structure |
US3911595A (en) * | 1974-04-23 | 1975-10-14 | Newport News S & D Co | Yankee dryer head and brace |
US3986784A (en) * | 1975-04-09 | 1976-10-19 | Caterpillar Tractor Co. | Weldment |
DE2707923A1 (en) | 1977-02-24 | 1978-08-31 | Voith Gmbh J M | Paper web drying cylinder - stainless steel sleeve welded to carbon steel end cover by carbon steel end ring and having thickness compatible with sleeve and cover |
JPS5431062A (en) * | 1977-08-12 | 1979-03-07 | Hitachi Ltd | Manufacture of structure superior in stress corrosion cracking resistivity |
JPS5499747A (en) * | 1978-01-25 | 1979-08-06 | Hitachi Ltd | Reinforcing method for welded joint or stainless steel pipe and construction of welded join of stainless steel pipe |
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US6942606B2 (en) * | 2003-07-02 | 2005-09-13 | New Castle Industries, Inc. | Roll having multiple fluid flow channels for use in producing and processing sheet material |
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BRPI0721415B1 (en) | 2007-03-01 | 2020-11-10 | Toscotec S.P.A. | yankee cylinder made of steel, which includes a cylindrical housing joined at two ends |
US20090224530A1 (en) * | 2008-03-06 | 2009-09-10 | Ben Dorrell Sessions | Welded butt joints on tubes having dissimilar end preparations |
DE102008002259A1 (en) * | 2008-06-06 | 2009-12-10 | Voith Patent Gmbh | Suction roller, particularly drying filter suction roller, has manhole opening arranged at front side covers opposite to each other in swearing situation, over which cleaning device is provided |
IT1395588B1 (en) * | 2009-09-09 | 2012-10-16 | Toscotec S P A | "INSULATED MONOLUCID CYLINDER" |
CN101829838A (en) | 2010-05-25 | 2010-09-15 | 江苏振光电力设备制造有限公司 | Welding method |
AT511232B1 (en) * | 2011-03-21 | 2014-09-15 | Andritz Ag Maschf | METHOD FOR PRODUCING A YANKEE CYLINDER |
SE1251287A1 (en) | 2012-11-13 | 2014-05-06 | Valmet Aktiebolag | Yankee cylinder made of steel |
-
2014
- 2014-06-02 US US14/902,887 patent/US10066340B2/en not_active Expired - Fee Related
- 2014-06-02 WO PCT/EP2014/061330 patent/WO2015000647A1/en active Application Filing
- 2014-06-02 EP EP17153733.5A patent/EP3196356B1/en active Active
- 2014-06-02 CN CN201480038333.1A patent/CN105358762B/en not_active Expired - Fee Related
- 2014-06-02 EP EP14727515.0A patent/EP3017110B1/en active Active
-
2018
- 2018-07-09 US US16/030,295 patent/US10676866B2/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
CN105358762B (en) | 2020-03-31 |
EP3196356B1 (en) | 2018-03-21 |
WO2015000647A1 (en) | 2015-01-08 |
EP3017110B1 (en) | 2017-04-12 |
US20180320313A1 (en) | 2018-11-08 |
EP3196356A1 (en) | 2017-07-26 |
US10066340B2 (en) | 2018-09-04 |
US20160145804A1 (en) | 2016-05-26 |
US10676866B2 (en) | 2020-06-09 |
CN105358762A (en) | 2016-02-24 |
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