• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    A paper machine drying section and method for operating the same are provided for reliably maintaining a web in engagement with a drying fabric at locations where the fabric is situated between the web and drying cylinders. Those drying cylinders which are directly contacted by the drying fabric, so that the web is separated therefrom by the drying fabric, are formed with recessed outer surfaces having voids across which the fabric extends. The pressure in these voids is maintained at a magnitude less than the pressure at the outer surface of the web where it travels around those cylinders from which it is separated by the fabric, so that in this way the web is urged by the pressure differential toward the fabric so as to be incapable of becoming detached therefrom. For this purpose either a vacuum system provides in the voids referred to above a pressure less than atmospheric pressure, or at the outer surface of the web there is provided by a suitable pressure chamber a pressure greater than atmospheric pressure, or both of these expedients may be used simultaneously, so that in this way a reliable maintenance of the web in engagement with the drying fabric is achieved where the web is separated from the drying cylinders by the fabric.
    公开号:SU908252A3
    申请号:SU782602603
    申请日:1978-04-04
    公开日:1982-02-23
    发明作者:Канкаанпяя Матти
    申请人:Балмет Ой(Фирма)；
    IPC主号:
    专利说明:

    (5) DEVICE FOR DRYING PAPER WEB OF PAPER-MAKING MACHINE
    one
    The invention relates to the field of the paper industry, namely to devices for drying a paper web in paper machines.
    A device for drying a paper web in a paper machine is known, comprising a group of drying drums, having an upper and lower row of drying drums arranged in a checkerboard pattern, conveying an endless grid that successively encompasses the drums of the upper and lower row so that the drums of one row are arranged outside the transport mesh loop, and the drums of a different row are located inside the transport mesh loop, and a series of vacuum chambers, each of which is located above the drying bararan It is between the branches of the transport grid 1.
    However, the known device is unreliable in operation.
    The purpose of shadow images is to increase the reliability of work
    The goal set is achieved in a device for drying a paper web in a paper machine containing a group of drying drums, having upper and lower ridges of drying drums arranged in a checkerboard pattern, conveying an endless grid, sequentially wrapping the upper and lower drums so that the drums of one row are located outside the transport mesh loop, and the drums of the other row are located inside the transport loop: the mesh, and the row of vacuum chambers, each. of which is located above the drying
    权利要求:
    Claims (2)
    [1]
    the lower row drum between the branches of the conveying net, each vacuum chamber on the side facing the drum has a window and sealing elements in contact with the body of the corresponding drum 3 with the conveying net, the drum having annular grooves made on the outer surface of its body. FIG. G schematically shows the device; general form; in fig. 2 group of tumble dryers; Fig. 3 is an axial section of the drums; in fig. and 5, drum groove profiles. The apparatus for drying the paper web in the paper machine contains a group of drying drums 1 and 2, having upper and lower rows of drums arranged in a checkerboard pattern. The drums 1 and 2 are heated by steam and have connections for steam 3 and 4. Conveying endless net 5 in series covers the drums of the upper and lower rows so that the drums 1 of the upper row are located outside the loop, and the drums 2 of the lower row inside the loop of the conveying net. The paper web 6 is introduced into the group of drying drums 1 and 2, under-25 depressing with a transporting net 5. On the upper row of drying drums 1, the canvas 6 is in contact with the heated surface of the drums 1 and covers them at an angle of 180 ° H The dach of the cylinders 2 of the web 6 lies on the outer side of the transporting net 5, as a result of which the transport net 5 lies between the web 6 and the heated surface of the drums 2. The bottom two drums have annular grooves 7, which can be made either with a single continuous groove, or a number of grooves arranged side by side. In the sector of the drums there are vacuum chamber smart chambers 8 and 9, which have a window and sealing elements 10 on the side facing the drum. Vacuum chambers 8 and 9 through tubes 11 are connected to a vacuum system. The transporting net 5 has guide rollers 12. In a vacuum chamber with reduced pressure, suction acts through the grooves 7 of the drum casing 2, as a result of which the web 6 is held on the transport web 5 on the sector (reels 2. In addition, the web 6 is held on transporting the net 5 is facilitated by the flow of A through the web and the transporting grid.The evaporation of water from the web is accelerated due to the vacuum in sector fi. Fig. 2 shows two groups A and B of drying drums, with drums 2 in the lower row of group A and top Group B drums are provided with annular grooves, whereby both sides of the web 6 are subjected to a contact dryer. dryer drums Group B has a wind box 13 further overpressure "to the vacuum chamber 9. In Fig. 5 and the embodiment shown the grooves 7 reels
    [2]
    2. The cross-sectional shape of the grooves 7 may be different, and the width a, depth in and the distance between grooves A. may also be different. The narrower the exit to the surface of the grooves 7, the larger the area of heat-conducting surface directly to the adjacent I. On the other hand; the wide width of the grooves 7 at their exit to the surface makes the effect of the pressure difference on the canvas in the sector (b more homogeneous. To remove dust from the canvas 6, means 15 are provided. Claims of invention A device for drying paper sheets in a paper machine containing a group of drying drums, having an upper and lower row of drying drums arranged in a checkerboard pattern, transporting an infinite mesh, sequentially wrapping around the drums of the upper and lower row so that they are bent in one row the outside loops of the conveying net are placed outside, and the drums of another row are located inside the loop of the conveying net, and a row of vacuum chambers, each of which is located above the drying drum of the lower row between the branches of the conveying net, characterized in that Each vacuum chamber on the side facing the drum has a window and sealing elements in contact with the body of the corresponding drum and with a transport net, the drum having annular grooves made on the outer surface of his body. Sources of information taken into account during the examination 1. USSR Author's Certificate No. 305229, cl. D 21 F 5/00, 1970. “4. /
    b / 1gCh
    BUT
    BUT . / i "7
    类似技术:
    公开号 | 公开日 | 专利标题
    SU908252A3|1982-02-23|Apparatus for drying paper web in paper-making machine
    SU712044A3|1980-01-25|Multicylinder dryer for tape material
    SU847935A3|1981-07-15|Method and device for transfer of wet paper web from carrying cloth or from net to net around drying cylinder with penetrable surface
    US3560333A|1971-02-02|Method and apparatus for drying paper on a yankee dryer
    US3874997A|1975-04-01|Multiple cylinder drier in a paper machine
    US3956832A|1976-05-18|Web dryer arrangement
    SE8201904L|1983-09-26|DEVICE BY CYLINDERTORK
    US4510698A|1985-04-16|Dryer felt run
    US3753298A|1973-08-21|Web dryer
    US3503139A|1970-03-31|Apparatus for drying fibrous webs on external drums
    US3576078A|1971-04-27|Paper drying process and apparatus
    US2714839A|1955-08-09|Apparatus for extracting water from paper stock
    US3751822A|1973-08-14|Web dryer
    US4485567A|1984-12-04|Dryer felt run
    SE8303025L|1984-12-01|SEALER AT CYLINDERTORK
    US4505052A|1985-03-19|Air blast apparatus for the dryer section of a paper making machine
    US3376653A|1968-04-09|Dryer ventilation
    US3555700A|1971-01-19|Roll for papermaking machinery
    US1595238A|1926-08-10|Vacuum seal, method and apparatus
    US3445938A|1969-05-27|Ventilation system for a papermaking machine
    US6656325B1|2003-12-02|Machine for manufacturing paper or board
    GB1389992A|1975-04-09|Machine for making tissue paper
    SU827664A1|1981-05-07|Device for drying webs
    US2981007A|1961-04-25|Willow drier
    GB2110804A|1983-06-22|Drying paper webs
    同族专利:
    公开号 | 公开日
    ATA234978A|1981-01-15|
    SE7803785L|1978-10-05|
    DE2813933A1|1978-10-12|
    SE449762B|1987-05-18|
    DE2813933C2|1982-12-16|
    FR2386638A1|1978-11-03|
    CA1121152A|1982-04-06|
    FI54627C|1979-01-10|
    AT363779B|1981-08-25|
    JPS53134909A|1978-11-25|
    US4202113A|1980-05-13|
    GB1584342A|1981-02-11|
    JPS6123319B2|1986-06-05|
    FI54627B|1978-09-29|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    US2224803A|1937-09-30|1940-12-10|Downingtown Mfg Co|Apparatus for drying paper|
    US2858747A|1955-02-07|1958-11-04|Wagner Rudolf Ernst|Rotary presses and the like|
    GB977956A|1962-09-26|1964-12-16|Abitibi Power & Paper Co|Drier section of paper making machine|
    US3555700A|1967-08-15|1971-01-19|Huyck Corp|Roll for papermaking machinery|
    US3503139A|1968-03-11|1970-03-31|Beloit Corp|Apparatus for drying fibrous webs on external drums|
    BE754598A|1969-08-13|1971-01-18|Inventing Ab|METHOD AND DEVICE FOR DRYING WET MATERIALS SUCH AS PAPER, CELLULOSE, OTHER FIBER MATERIALS, AND OTHER PRODUCTS OF THE SAME KIND|
    US3576078A|1970-02-02|1971-04-27|Cons Paper Inc|Paper drying process and apparatus|
    US3919783A|1971-03-29|1975-11-18|Anthony J Cirrito|Method for hot gas heat transfer, particularly for paper drying|
    DE2212209C3|1972-03-14|1980-05-29|Escher Wyss Gmbh, 7980 Ravensburg|Dryer section|
    US4103434A|1972-05-30|1978-08-01|Richard Turner Walker|Drying apparatus|
    GB1397023A|1973-03-16|1975-06-11|Kankaanpaa M|Multiple-cylinder drier in a paper-making machine|
    US3874997A|1973-03-21|1975-04-01|Valmet Oy|Multiple cylinder drier in a paper machine|
    DE2323574C3|1973-05-10|1976-01-08|J.M. Voith Gmbh, 7920 Heidenheim|Drying section for paper machines|
    AT333120B|1973-11-24|1976-11-10|Voith Gmbh J M|CYLINDER FOR PAPER MACHINES OR DGL.|
    DE2364346C3|1973-12-22|1978-04-06|J.M. Voith Gmbh, 7920 Heidenheim|Drying device for paper webs or the like|
    US3956832A|1974-09-13|1976-05-18|Beloit Corporation|Web dryer arrangement|US4359828A|1979-11-05|1982-11-23|Weyerhaeuser Company|Vacuum box for use in high speed papermaking|
    US4359827B1|1979-11-05|1994-03-29|Keith V Thomas|High speed paper drying|
    FI59637C|1979-11-20|1981-09-10|Valmet Oy|ANORDNING I TORKPARTIET AV EN PAPPERSMASKIN|
    FI59278C|1980-05-13|1981-07-10|Valmet Oy|CYLINDERTORK I EN PAPPERSMASKIN ELLER LIKNANDE|
    US4476636A|1980-10-27|1984-10-16|Gross Frank R|Boundary air layer modification structure for heat transfer roll|
    FI62693C|1980-12-01|1983-02-10|Valmet Oy|FOERFARANDE I EN FLERCYLINDERTORK ELLER LIKNANDE I EN PAPPERSMASKIN|
    FI65460C|1980-12-12|1984-05-10|Valmet Oy|FOER FARANDE OCH ANORDNING VID PRESS- ELLER TORKPARTIET I EN PAPERSMASKIN|
    US4483083A|1982-08-18|1984-11-20|Beloit Corporation|Drying and runnability for high speed paper machines|
    US4625430A|1984-06-06|1986-12-02|Valmet Oy|Drying section and method in paper machine|
    GB8531540D0|1985-12-21|1986-02-05|Scapa Porritt Ltd|Papermachine &c fabrics|
    US4686777A|1986-02-21|1987-08-18|Beloit Corporation|Preventing sheet flutter in paper web dryers|
    US4716660A|1986-04-03|1988-01-05|Hercules Incorporated|Unifelt air suction system|
    US5175945A|1987-02-13|1993-01-05|Beloit Corporation|Apparatus for drying a web|
    US6049999A|1987-02-13|2000-04-18|Beloit Technologies, Inc.|Machine and process for the restrained drying of a paper web|
    US5279049A|1987-02-13|1994-01-18|Beloit Technologies, Inc.|Process for the restrained drying of a paper web|
    US4934067A|1987-02-13|1990-06-19|Beloit Corporation|Apparatus for drying a web|
    US5404653A|1987-02-13|1995-04-11|Beloit Technologies, Inc.|Apparatus for drying a web|
    US5507104A|1987-02-13|1996-04-16|Beloit Technologies, Inc.|Web drying apparatus|
    US5144758A|1987-02-13|1992-09-08|Borgeir Skaugen|Apparatus for drying a web|
    CA1328167C|1987-02-13|1994-04-05|Borgeir Skaugen|Apparatus for drying a web|
    US5065529A|1987-02-13|1991-11-19|Beloit Corporation|Apparatus for drying a web|
    US4876803A|1987-02-13|1989-10-31|Beloit Corporation|Dryer apparatus for drying a web|
    US4945655A|1987-02-13|1990-08-07|Beloit Corporation|Apparatus for cutting a tail from a web|
    US4882854A|1987-05-26|1989-11-28|Beloit Corporation|Guide roll apparatus for a dryer of a paper machine drying section|
    FI80491C|1987-09-02|1990-06-11|Valmet Paper Machinery Inc|FOERFARANDE OCH TORKNINGSGRUPP I MAONGCYLINDERTORKEN AV EN PAPPERSMASKIN.|
    FI79370C|1988-03-09|1989-12-11|Valmet Paper Machinery Inc|Method and apparatus in the drying group of the multi-cylinder dryer of a paper machine to ensure the tip drawing of the web|
    FI83680C|1988-03-09|1991-08-12|Valmet Paper Machinery Inc|FOERFARANDE OCH ANORDNING VID DRAGNINGEN AV BANAN I EN PAPPERSMASKIN SAMT CYLINDER FOER ANVAENDNING VID DRAGNINGEN AV BANAN.|
    DE3910600C2|1989-04-01|1993-10-07|Voith Gmbh J M|One-sieve dryer group|
    DE3910612C2|1989-04-01|1992-12-24|J.M. Voith Gmbh, 7920 Heidenheim, De|
    AT394063B|1989-11-10|1992-01-27|Andritz Ag Maschf|DRYING DEVICE|
    AT394870B|1989-11-10|1992-07-10|Andritz Ag Maschf|DRYING DEVICE|
    AT396263B|1991-07-15|1993-07-26|Andritz Patentverwaltung|Suction roll|
    DE4142524A1|1991-12-21|1993-06-24|Voith Gmbh J M|DRY LOT|
    US5542193A|1992-04-24|1996-08-06|Beloit Technologies, Inc.|Dryer group for curl control|
    US5884415A|1992-04-24|1999-03-23|Beloit Technologies, Inc.|Paper making machine providing curl control|
    FI95491C|1992-12-30|1996-02-12|Valmet Paper Machinery Inc|Paper machine drying section|
    FI925942A|1992-12-30|1994-07-01|Valmet Paper Machinery Inc|Swing drying group in the maong cylinder dryer of a paper machine|
    US5291666A|1993-04-23|1994-03-08|International Paper Company|Apparatus for drying roll material|
    FI98229C|1993-08-23|1997-05-12|Valmet Paper Machinery Inc|Drying lot for a paper machine|
    FI103820B1|1993-11-30|1999-09-30|Valmet Paper Machinery Inc|Procedures for drying a paper web and drying parts for paper machine|
    FI98387C|1995-02-01|1997-06-10|Valmet Corp|Method for the production of surface-treated paper, in particular fine paper, and the dry end of a paper machine|
    US6126787A|1995-02-01|2000-10-03|Valmet Corporation|Dry end of a paper machine|
    US6280576B1|1996-07-31|2001-08-28|Valmet Corporation|After-dryer in a paper machine|
    FI105573B|1996-12-16|2000-09-15|Valmet Corp|Paper machine, in particular paper dryer roll and paper machine dryer group|
    US5996244A|1996-12-16|1999-12-07|Valmet Corporation|Roll for a paper machine, in particular for a paper drying device, and dryer group for a paper machine|
    DE19842746A1|1998-09-18|2000-03-23|Voith Sulzer Papiertech Patent|Wet web drying station has a continuous heated belt in contact with the web as it passes round rotating cylinders together with a carrier belt for effective drying in a short drying stage|
    US6209224B1|1998-12-08|2001-04-03|Kimberly-Clark Worldwide, Inc.|Method and apparatus for making a throughdried tissue product without a throughdrying fabric|
    US6183601B1|1999-02-03|2001-02-06|Kimberly-Clark Worldwide, Inc.|Method of calendering a sheet material web carried by a fabric|
    US7006569B1|1999-02-05|2006-02-28|Samsung Electronics Co., Ltd.|Digital video processing method and apparatus thereof|
    FI116732B|1999-02-10|2006-02-15|Metso Paper Inc|Method and apparatus for drying a fiber web|
    FI106269B|1999-05-10|2000-12-29|Valmet Corp|Blow arrangement and method for compensating the curl tendency of paper or cardboard webs and a paper or cardboard machine|
    US6581301B1|2000-11-21|2003-06-24|Georgia-Pacific Corporation|Paper drying machine|
    FI118999B|2003-10-07|2008-06-13|Metso Paper Inc|Paper or board machine roller and paper or board machine drying group|
    FI20065061A|2006-01-30|2007-07-31|Metso Paper Inc|Method and apparatus for drying part of a fiber web machine such as a paper or board machine|
    JP5109376B2|2007-01-22|2012-12-26|東京エレクトロン株式会社|Heating device, heating method and storage medium|
    US10119758B2|2014-05-30|2018-11-06|Worcester Polytechnic Institute|Drying using phase change material |
    DE102016125172A1|2016-12-21|2018-06-21|Voith Patent Gmbh|Method for operating a heating group subsystem and heating subsystem|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    FI771056A|FI54627C|1977-04-04|1977-04-04|FOERFARANDE OCH ANORDNING I TORKPARTIET I EN PAPPERSMASKIN|
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