US3589033A - Honeycomb roll assembly for treating paper with felts - Google Patents

Honeycomb roll assembly for treating paper with felts Download PDF

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Publication number
US3589033A
US3589033A US802362A US3589033DA US3589033A US 3589033 A US3589033 A US 3589033A US 802362 A US802362 A US 802362A US 3589033D A US3589033D A US 3589033DA US 3589033 A US3589033 A US 3589033A
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United States
Prior art keywords
pipe
perforations
felt
axially
roll
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
Application number
US802362A
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English (en)
Inventor
Edward T Bryand
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Metal Tech Inc
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Metal Tech Inc
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Filing date
Publication date
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Publication of US3589033A publication Critical patent/US3589033A/en
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Expired - Lifetime legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B13/00—Machines and apparatus for drying fabrics, fibres, yarns, or other materials in long lengths, with progressive movement
    • F26B13/10—Arrangements for feeding, heating or supporting materials; Controlling movement, tension or position of materials
    • F26B13/14—Rollers, drums, cylinders; Arrangement of drives, supports, bearings, cleaning
    • F26B13/16—Rollers, drums, cylinders; Arrangement of drives, supports, bearings, cleaning perforated in combination with hot air blowing or suction devices, e.g. sieve drum dryers
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
    • D21F1/00—Wet end of machines for making continuous webs of paper
    • D21F1/32—Washing wire-cloths or felts
    • 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
    • D21F3/10—Suction rolls, e.g. couch rolls
    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
    • Y10T428/24149—Honeycomb-like

Definitions

  • the flow of fluid through the felt and through the honeycomb is controlled by turning and axially sliding a multiple pin control rod, each pin selectively axially sliding one of a plurality of perforated, arcuate valve plugs, or deckles, relative to a perforated pressure pipe, which rotatably supports the roll, so that fluid flow is controllable in a plurality of zones axially across the roll and web.
  • honeycomb roll assembly be equally elongated to support the felt from one selvedge to the other, thereby presenting problems of sag, stress, strain, contraction and expansion in the assembly. It has also been found that evaporation varies across the web, so that provision should be made for increasing or decreasing hot airflow in various zones along the roll and across the web. Telescopable, perforated cylindrical sleeves within the roll have been used for this purpose, but were found to bind in the lengths necessary, thus being somewhat unsatisfactory.
  • the honeycomb roll is mounted to rotate around the stationary fluid pressure pipe, on bearings at each opposite end of the pipe, and the fluid is supplied through one end of the pipe.
  • a predetermined arcuate pattern of spaced perforations extends axially along the pipe from one end to the other, so that air blasts, or suction if desired, will occur in a wide, full length band therealong to pass through the open honeycomb cells and the interstices of the felt supported thereon.
  • Deckle, or valve, means is provided to control the air flow in, for exam ple, eight zones along the roll, so that each zone is independently adjustable from one end of the assembly.
  • the deckle, or valve, means is a plurality of arcuate, valve plugs, each axially slidable in tracks for a short travel in its zone, and each having perforations which register with the perforations in the pipe.
  • the circular holes in the pipe can be wholly or partly masked by the sliding plugs for more or less airflow in the zone.
  • FIG. 1 is a fragmentary diagrammatic side elevation of a portion of a paper making machine showing the dryer drums, felt and paper webs and a felt dryer roll of the invention in a pocket;
  • FIG. 2 is an enlarged front elevational view, partly in section, ofthe dryer roll assembly shown in FIG. 1;
  • FIG. 3 is a plan view of the dryer roll assembly of FIG. 2, with parts broken away;
  • FIG. 4 is a view in section ofline 4-4 of FIG. 3.
  • a typical Fourdrinier paper mak ing machine may have a drying section, in which large diameter drying drums, such as 21, 22 and 23, are journaled, with the endless felts 24 and endless web of paper 25 trained therearound or thereover, all in a well-known manner.
  • the felt carrier roll assembly 27 is located in what is known in the trade as a pocket 28, in that it is confined in a space delimited by travelling webs and rotating rolls so that moist air can only escape from the ends of the pocket.
  • the felt carrier roll assembly 27 of this invention takes the place of the solid roll formerly used, and includes the stationary fluid pressure pipe 32, fixed to the frame 33 by the brackets 34.
  • Pressure pipe 32 extends transversely of the machine 20, for the full length of pocket 28, and the full width of web 24, one end being usually a dead end as at 35, and the other end 36 having a right angular pressure supply conduit 37 connected to a source of positive, or negative, pressure. Since the illustrated assembly 27 is for the purpose of drying felt web 24, conduit 37 is connected to a source 381 of hot air under pressure, so that the hot air will take up and remove moisture from the felt.
  • honeycomb openwork roll, or sleeve, 41 is of a known type shown in my Pat. No. 3,139,375 of June 30, 1964, or 3,259,961 of July 12, 1966, the roll being formed of thin strips 42 which define open ended cells 43 and provide edgewise support to the web 24, while providing a maximum of open area for the passage of air.
  • Each opposite end of roll 41 is rotatably supported in bearings 44 on pipe 32, for free rotation around the pipe while acting as a carrier, or support, for the felt web.
  • the cylindrical inner face 45, of honeycomb roll 4] is at a spaced distance from the outer face 46 of the stationary pipe 32.
  • Pipe 32 includes a predetermined pattern of spaced apart perforations, such as 48, the staggered perforations 48 covering an area 49 of predetermined width, such as an angular distance of or the remainder of the pipe being unperforated to serve as a seal.
  • the area 49 extends the full length of the pipe 32 from one selvedge 50 of the felt web 24 to the other selvedge 51.
  • a plurality such as eight, deckle, or valve, means 53 are provided within pipe 32 to adjustably control the flow of fluid through the perforations 48.
  • the pipe 32 is divided lengthwise into eight individual zones, such as 54 and 55, and a deckle shoe 56, of arcuate cross section is supported in tracks 57, in each zone, for short travel in the pipe, such as one or two inches, depending on the diameter of the perforations 48 required to be masked.
  • Each deckle shoe 56 corresponds to a sliding valve plug in having a plurality of perforations 58, identical with the perforations 48 in its zone and in registration therewith. It will be seen that when the shoe 56 is moved axially from a position in which the perforations 48 and 58 are in registration, the perforations will gradually close until they are completely masked, and that the rate of flow in each zone can therefore be adjusted to the amount required or desired.
  • the partly cylindrical outer face 60 of each shoe and the inner face 61 of pipe 32 may be machined for better sliding and sealing contact if desired.
  • a single control rod 63 is axially slidable within the pipe 32 and provided with a turn knob 64 exteriorly of the end 36 so that the rod 63 can be turned to any one of eight different angular positions and then pulled for one inch or more.
  • Eight pins, such as 65 are located at spaced distances along the rod, each at one of the said angular positions and each deckle, or valve, plug, 56, includes a groove 66 into which its adjacent pin 65 fits when the rod is appropriately turned.
  • a seal 67 of micarta, or the like preferably is affixed over each joint, or space, 68, between adjacent shoes 56.
  • the spaces 68 between adjacent shoes 56 permit individual axial movement of the shoes and are arranged to be located in unperforated portions of the pipe.
  • the spaces 68 correspond in configuration with the tongues and grooves.
  • a felt dryer roll assembly for removing moisture from a felt web in a paper making machine, said assembly being of the type having:
  • a stationary fluid pressure pipe with perforations spaced axially therealong, said pipe having an inner face and an outer face;
  • control means extending outside of said pressure pipe, selectively engageable and disengageable with each said shoe within said pipe for axially moving said shoes to adjust the quantity of hot, pressurized fluid flow through said perforations.
  • said support means comprises axially extending track means for guiding the same within said pipe.
  • the perforations in said pipe and shoes are in two parallel rows, with the perforations in one row staggered and located opposite the spaces between the perforations in the other row,
  • each said shoe includes tongues and grooves at each opposite end, for conforming to the staggered arrangement of said perforations.
  • a felt treatment roll assembly adapted to fit in a pocket formed by the felt of a paper making machine, said assembly comprising:
  • a stationary fluid pressure pipe mounted transversely of said machine in a pocket formed by said felt, said pipe having perforations spaced axially and circumferentially thereon, in a pattern of predetermined angular width;
  • each valve means defining one of a plurality of zones along said roll and including a partly cylindrical valve plug, having perforations in registration with the perforations on said pipe,

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Paper (AREA)
  • Laminated Bodies (AREA)
US802362A 1969-02-26 1969-02-26 Honeycomb roll assembly for treating paper with felts Expired - Lifetime US3589033A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US80236269A 1969-02-26 1969-02-26

Publications (1)

Publication Number Publication Date
US3589033A true US3589033A (en) 1971-06-29

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Family Applications (1)

Application Number Title Priority Date Filing Date
US802362A Expired - Lifetime US3589033A (en) 1969-02-26 1969-02-26 Honeycomb roll assembly for treating paper with felts

Country Status (4)

Country Link
US (1) US3589033A (fr)
DE (1) DE2115155A1 (fr)
FR (1) FR2131068A5 (fr)
GB (1) GB1296324A (fr)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3755916A (en) * 1971-08-13 1973-09-04 Bangor Punta Operations Inc Plenum discharge face employing honeycomb layer
US3925905A (en) * 1973-08-06 1975-12-16 Gaston County Dyeing Mach Piece goods extraction apparatus and method
US4269593A (en) * 1979-12-21 1981-05-26 Allis-Chalmers Corporation Roller grate material bed conveying and heat exchange apparatus providing plural bed depths
US4270899A (en) * 1979-12-21 1981-06-02 Allis-Chalmers Corporation Roller grate material bed transporting and heat exchange apparatus
US4338079A (en) * 1979-12-21 1982-07-06 Allis-Chalmers Corporation Method and apparatus for subjecting mineral particles to gas flow
US4777070A (en) * 1984-05-11 1988-10-11 Institut Francais Du Petrole Alveolar structure designed to cover a curved surface and its realization process
AT409871B (de) * 1996-12-16 2002-12-27 Valmet Corp Walze für eine papiermaschine, insbesondere für eine papiertrocknungsvorrichtung, und trocknergruppe für eine papiermaschine
US20220112661A1 (en) * 2020-10-14 2022-04-14 Valmet, Inc. Through-air apparatus with adjustable deckle

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4297794A (en) * 1977-08-02 1981-11-03 Ingersoll-Rand Company Paper sheet dryer
DE3907480A1 (de) * 1989-03-08 1990-09-13 Voith Gmbh J M Leitwalze fuer eine materialbahn

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB534389A (en) * 1940-02-19 1941-03-05 David Russell Improvements relating to paper-making machines
US3057079A (en) * 1952-07-20 1962-10-09 J W Zanders Feinpapierfabrik G Apparatus for contactless guiding and conveying of flexible sheet-like products
US3110575A (en) * 1961-01-25 1963-11-12 Beloit Iron Works Porous belt drying apparatus
US3139375A (en) * 1960-09-15 1964-06-30 Metal Tech Inc Suction roll assembly

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB534389A (en) * 1940-02-19 1941-03-05 David Russell Improvements relating to paper-making machines
US3057079A (en) * 1952-07-20 1962-10-09 J W Zanders Feinpapierfabrik G Apparatus for contactless guiding and conveying of flexible sheet-like products
US3139375A (en) * 1960-09-15 1964-06-30 Metal Tech Inc Suction roll assembly
US3110575A (en) * 1961-01-25 1963-11-12 Beloit Iron Works Porous belt drying apparatus

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3755916A (en) * 1971-08-13 1973-09-04 Bangor Punta Operations Inc Plenum discharge face employing honeycomb layer
US3925905A (en) * 1973-08-06 1975-12-16 Gaston County Dyeing Mach Piece goods extraction apparatus and method
US4269593A (en) * 1979-12-21 1981-05-26 Allis-Chalmers Corporation Roller grate material bed conveying and heat exchange apparatus providing plural bed depths
US4270899A (en) * 1979-12-21 1981-06-02 Allis-Chalmers Corporation Roller grate material bed transporting and heat exchange apparatus
US4338079A (en) * 1979-12-21 1982-07-06 Allis-Chalmers Corporation Method and apparatus for subjecting mineral particles to gas flow
WO1982002247A1 (fr) * 1980-12-23 1982-07-08 Allis Chalmers Procede et appareil permettant de soumettre des particules minerales a un flux gazeux
US4777070A (en) * 1984-05-11 1988-10-11 Institut Francais Du Petrole Alveolar structure designed to cover a curved surface and its realization process
AT409871B (de) * 1996-12-16 2002-12-27 Valmet Corp Walze für eine papiermaschine, insbesondere für eine papiertrocknungsvorrichtung, und trocknergruppe für eine papiermaschine
US20220112661A1 (en) * 2020-10-14 2022-04-14 Valmet, Inc. Through-air apparatus with adjustable deckle
US11608595B2 (en) * 2020-10-14 2023-03-21 Valmet, Inc. Through-air apparatus with adjustable deckle

Also Published As

Publication number Publication date
DE2115155A1 (de) 1972-10-05
FR2131068A5 (fr) 1972-11-10
GB1296324A (fr) 1972-11-15

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