US2054391A - Multiple cylinder web drier - Google Patents

Multiple cylinder web drier Download PDF

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Publication number
US2054391A
US2054391A US33181A US3318135A US2054391A US 2054391 A US2054391 A US 2054391A US 33181 A US33181 A US 33181A US 3318135 A US3318135 A US 3318135A US 2054391 A US2054391 A US 2054391A
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United States
Prior art keywords
drying
cylinder
web
paper
wall
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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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US33181A
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English (en)
Inventor
Schmidt Ernst
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Individual
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Individual
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Publication of US2054391A publication Critical patent/US2054391A/en
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    • 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

Definitions

  • Such a set of drying cylinders forms in the structure of a paper making machine a basic arrangement defining the chief lines of the structural arrangement of such a machine owing to the greatnumber of drying drums'and' their driving means which have to be mounted in the frame.
  • additional drying devices are included depending on the use of a drying felt which has to be brought back to a dry state by heating both on its upper and lower faces, in 'which arrangement also it is necessary to arrange scrapers on the unwrapped peripheral surface of the drying cylinders.
  • a stationary system of heating pipes replacing the revolving drying cylinders.
  • each of the-revolving drying cylinders is surrounded by a strainer perforated jacket wall spaced a small distance from the cylinder body, and that, at th flines of engage- 0 ment and departure of the paper pulp web, spring drying felt extendingthe paper pulp web it the heating pipes with the assistance care being taken pressed guide cylinders or rollers are provided which may replace the usual guide rollers conducting the drying felt to the cylinders.
  • the increase in cylinder diameter involved by provid-' ing perforated jackets may be also adapted to the line of contact with the guide rollers.
  • the annular space between the perforated jacket wall and the body of the drying cylinder is used for the purpose of exchanging the drying air and for the removal and/or storage of the wet steam, said purposes being achieved by blowing dry, warm air through adiustable air nozzles directed towards the perforated jacket wall in the region of the free circumferential portion lying between the guide rolls.
  • Narrow guide strips are preferably arranged as accessories at the non-perforated margins of the cylinders to render possible, if necessary, the setting of a paper web on the cylinders. Said guide strips are kept in movement owing to the rotation of the drum and are shiftable in axial direction by means of an engaging and disengaging device.
  • FIG. 1 A- part of a drying plant or section according .to the invention is illustrated in Fig. lin sectional elevation.
  • Fig. 2 shows a side view partly in section. 3
  • Fig. 3 is a side view showing the spring pressed roller.
  • a drying cylinder l heated in known manner is provided with a finely perforated jacket wall 2, e. g. made from copper, said wall being spaced at a distance from the body of the drying cylinder, whereby the heat operates on the'paper pulp web 3 not as hitherto by conduction, but by radiation.
  • the jacket wall 2 is connected by flanges 4 to the body ofthe drying cylinder, so that'between said cylinder body and the wall an annular space 5 closed at its ends results from which the generated steam may escape through the perforation of the said wall 2.
  • the paper pulp web is conducted round the jacket wall 2 in a manner known in drying devices and is held thereon with a slight spring pressure by means of rotatably mounted guide rollers 6.
  • the warm air blown by means of the nozzles I into the annular space 5 also-provides a control of the heating action exerted by the drying cylinders and thereby permits higher velocities of the paper making machines simultaneously with the highest quality of paper.
  • the air blown into the annular space 5 effects not only a supplementary drying action by'supplying heat but it assists drying also by quickly carrying away from said annular space .5 any water vapor formed therein, so that in said space there is a practically uninterrupted presence of dry air' capable of absorbing vapor.
  • the arrows in Fig. 1 indicate the admission of the warm air to the jacket space and the discharge of warm air and water vapor therefrom.
  • the consumption of-heat energy in the drying section or plant arranged according to the invention is essentially lower, because there is no carrying 011 of moisture'stored by drying felts,
  • narrow guidestrips 8 may be provided. These strips are moved by the rotating cylinders and if required they may be shifted endwise into the range of the width of the paperweb by means of shifter devices 9.
  • the jacket wall 2 is advantageouslysupported by annular spacing members ill, provided with apertures parallel to the axis of the cylinder.
  • a spring pressed roller is illustrated in Fig.
  • the roller 8 beam with its roller 5 may be regulated.
  • axle or shaft in sliding like blocks I! which are held between helical springs I'I-and It.
  • Feltlessdrying cylinder equipment for drying the web in paper making machines comprising for each drying cylinder a perforated jacket wall spaced from and surrounding the body of the cylinder, spring pressed guide means provided at the lines of engagement and departure ofthe paper pulp web with and from said wall, and air supplying means arrangedbetween said guide means forblowing dry warm air'into the annular s'paeebetween said jacket wall and cylnder body.
  • Feltless drying cylinder equipment for drying the web in paper making machines comprising for each drying cylinder a perforated jacket wall spaced from and surrounding the body of the cylinder, spring pressed guide rollers provided at the lines of engagement and departure of the paper pulp web with and from said wall, and air supplying nozzles between said guide rollers for flowing. dry, warm air into the annular jacket space.
  • endless running guide strip adapted to lap around the ends of the guide rollers and jacketed cylinderuncovered'by the web, andmeans for'shifting said guiding strip axially of said rolls and cylinder.

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  • Paper (AREA)
  • Drying Of Solid Materials (AREA)
US33181A 1934-07-23 1935-07-25 Multiple cylinder web drier Expired - Lifetime US2054391A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE440619X 1934-07-23

Publications (1)

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US2054391A true US2054391A (en) 1936-09-15

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ID=6511234

Family Applications (1)

Application Number Title Priority Date Filing Date
US33181A Expired - Lifetime US2054391A (en) 1934-07-23 1935-07-25 Multiple cylinder web drier

Country Status (4)

Country Link
US (1) US2054391A (enrdf_load_stackoverflow)
FR (1) FR793448A (enrdf_load_stackoverflow)
GB (1) GB440619A (enrdf_load_stackoverflow)
NL (1) NL41800C (enrdf_load_stackoverflow)

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2416027A (en) * 1943-02-03 1947-02-18 Wendell H Shields Cloth drying machine
US2669912A (en) * 1949-05-13 1954-02-23 Beloit Iron Works Apparatus for removing liquids from perforated rotating shells
US2689196A (en) * 1951-04-02 1954-09-14 Joseph S Daniels Web drier
US2885954A (en) * 1957-11-27 1959-05-12 Dominion Eng Works Ltd High-speed roll press for extracting water from a wet web
US2919751A (en) * 1954-09-18 1960-01-05 Voith Gmbh J M Thickening apparatus for fibrous suspensions
US2954613A (en) * 1955-04-13 1960-10-04 David S Baker Apparatus and method for drying materials
US3073038A (en) * 1959-11-05 1963-01-15 Woodrow C Lodding Drying drum
US3134653A (en) * 1961-02-01 1964-05-26 Beloit Corp Web drying apparatus
US3237316A (en) * 1962-09-28 1966-03-01 Hans W Sachs Apparatus for drying continuous lengths of film or paper or the like
US3440736A (en) * 1966-05-02 1969-04-29 Vepa Ag Apparatus for the treatment of lengths of materials
US3739483A (en) * 1969-03-19 1973-06-19 Artos Meier Windhorst Kg Process and apparatus for continuous heat treatment of porous heavy webs
US3885262A (en) * 1972-03-20 1975-05-27 Drabert Soehne Method for the continuous decatizing of fabrics
US5575080A (en) * 1994-06-28 1996-11-19 Fleissner Gmbh & Co., Kg Device for the continuous-flow treatment of textile material or like fiber containg material
AU706688B2 (en) * 1995-07-14 1999-06-24 Fleissner Gmbh & Co. Maschinenfabrik Device for the continuous-flow treatment of textile material or similar
US6209224B1 (en) 1998-12-08 2001-04-03 Kimberly-Clark Worldwide, Inc. Method and apparatus for making a throughdried tissue product without a throughdrying fabric

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2416027A (en) * 1943-02-03 1947-02-18 Wendell H Shields Cloth drying machine
US2669912A (en) * 1949-05-13 1954-02-23 Beloit Iron Works Apparatus for removing liquids from perforated rotating shells
US2689196A (en) * 1951-04-02 1954-09-14 Joseph S Daniels Web drier
US2919751A (en) * 1954-09-18 1960-01-05 Voith Gmbh J M Thickening apparatus for fibrous suspensions
US2954613A (en) * 1955-04-13 1960-10-04 David S Baker Apparatus and method for drying materials
US2885954A (en) * 1957-11-27 1959-05-12 Dominion Eng Works Ltd High-speed roll press for extracting water from a wet web
US3073038A (en) * 1959-11-05 1963-01-15 Woodrow C Lodding Drying drum
US3134653A (en) * 1961-02-01 1964-05-26 Beloit Corp Web drying apparatus
US3237316A (en) * 1962-09-28 1966-03-01 Hans W Sachs Apparatus for drying continuous lengths of film or paper or the like
US3440736A (en) * 1966-05-02 1969-04-29 Vepa Ag Apparatus for the treatment of lengths of materials
US3739483A (en) * 1969-03-19 1973-06-19 Artos Meier Windhorst Kg Process and apparatus for continuous heat treatment of porous heavy webs
US3885262A (en) * 1972-03-20 1975-05-27 Drabert Soehne Method for the continuous decatizing of fabrics
US5575080A (en) * 1994-06-28 1996-11-19 Fleissner Gmbh & Co., Kg Device for the continuous-flow treatment of textile material or like fiber containg material
AU706688B2 (en) * 1995-07-14 1999-06-24 Fleissner Gmbh & Co. Maschinenfabrik Device for the continuous-flow treatment of textile material or similar
US6209224B1 (en) 1998-12-08 2001-04-03 Kimberly-Clark Worldwide, Inc. Method and apparatus for making a throughdried tissue product without a throughdrying fabric

Also Published As

Publication number Publication date
NL41800C (enrdf_load_stackoverflow)
FR793448A (fr) 1936-01-24
GB440619A (en) 1936-01-02

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