• 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:
    An air guide box for the dryer section of a paper making machine is arranged as generally between two succeeding drying cylinders and along a continuous support band or belt which supports the associated paper web to be dried; the air guide box has an end of generally wedge-like configuration which extends at least some distance into the gore-like space as exists in the region where the support band or belt runs onto the next drying cylinder; a first gap exists generally between a first wall of the guide box and the running support band or belt while a second gap exists as between a second wall of the guide box and the juxtaposed surface of such next drying cylinder. In order to guide the paper web along the support band or belt in order to assure proper contact: (a) on the inflow side, an air wipe-off or barrier apparatus is provided as at the guide box; (b) the first gap preferably diverges from the first wall as the first gap more nearly approaches the gore-like space; (c) the guide box is connected to a blast air supply which, preferably, is directed through an opening and into the second gap as to have a flow direction generally opposite to the direction of rotation of such next drying cylinder; and (d) preferably the first and second gaps are interconnected by a passage with such interconnecting passage being situated as to occur before the air blast opening when viewed or considered in the direction of rotation of such next drying cylinder.
    公开号:SU1384211A3
    申请号:SU833647618
    申请日:1983-09-30
    公开日:1988-03-23
    发明作者:Фиссманн Ханс-Йоахим；Майнекке Альберт；Кеммер Манфред
    申请人:Й.М.Фойт Гмбх (Фирма)；
    IPC主号:
    专利说明:

    SLE 00 .4
    ISD
    CN
    .l
    The second wall 9 of the housing, which in its cross section is located in the surface area of the second drying cylinder in the direction of movement of the support belt, forms the second air gap 10 with the surface of this cylinder, is connected to the first wall in the area of the wedge arch and has an opening for air passage 11 The box is equipped with a nozzle 12 for connection with the air injection system into the housing, and the air passage opening 11 is slotted, serves to inject air into the second gap and is arranged as
    in such a way that its axis 13 coincides with the direction of air injection into the second gap and forms an obtuse angle with the direction of rotation 14 of cylinder 3. The ventilating box may have a partition 15 located in the housing in front of the slotted air inlet. The partition, located in front of the slotted hole for the passage of air, forms together with the second wall of the housing a nozzle, the outlet of which is aligned with the slotted hole. ; 3 zp f-ly, 2 ill.
    one
    The invention is intended for the drying part of a paper machine and is intended for use in the pulp and paper industry.
    The purpose of the invention is to provide high-quality drying of the paper web and reduce the possibility of it breaking due to the stabilization of the web feed when working on a high-speed paper-making machine.
    1 shows a schematic cut-out of the drying part of a paper machine; Fig. 2 shows the ventilation duct, cross section.
    The ventilating box for the drying part of the papermaking machine includes a body 1 extending transversely through the drying part of the machine between two successive successively displaced height cylinders 2 and 3 and located along the envelope from the securing cylinders of the support belt 4 for the paper web to the wedge arch 3 formed by this tape and second in its direction. of the drying cylinder, the first wall 6 of the body, which in its cross section passes along the supporting belt to the wedge vault and forms with it the first air gap 7, located on the edge of the first wall of the body located on the feed side of the belt into the first air gap 8 dl
    air removal oriented pro-. against the direction of its movement, the second wall 9 of the housing, which in its cross section is located in the zone
    the surface of the second in the direction of movement of the support strip of the drying cylinder forms. The second air gap 10 is connected to the surface of this cylinder and is connected to the first wall in the zone of the wedge vault and has an opening 1 1 on the side of the wedge vault for air passage. The box has a nozzle 12 for connection with the air injection system into the body, and the air passage opening is slotted, serves to inject air into the second gap and is positioned so that its axis 13 coincides with the direction of air injection into the second gap and forms the direction of rotation 14 of cylinder 3 is an obtuse angle. The first wall of the box can be located
    along the support strip to form a first air gap that expands in the direction of movement of the support strip. The ventilation duct may have a partition 15 located
    in the case in front of the slotted air inlet. The partition, located in front of the slotted hole for the passage of air, forms a coBMecTrto with the second wall of the housing nozzle 16, the outlet of which is aligned with the slotted | hole.
    ,
    313
    The ventilation box works as follows.
    The air stream entering the ventilating box 1 overcomes on its way to the spline-like opening 11 limited by the first wall 6 and the partition 15 a throttle gap through which air pressure is distributed evenly along the entire length of the box. In the nozzle-shaped space (nozzle) 16, the stream of air receives acceleration, so that it enters the gap 10 at a high speed against the direction of movement (arrow 14) of the drying cylinder 3. During its passage through the gap 10 located on the side of the cylinder and also already before the gap the air stream pulls away
     The boundary layer of air captured by the drying cylinder and thus preventing it from tightening into the roof 5, Means 8 for removing air (a bar) on the edge of the first wall 6 located on the supply side removes part of the boundary layer of air on the support belt 4. Noah tape gap 7 in the direction of the arch 5 in the gap occurs low, pressuremaking. This pressure tends to equalize by sucking air through the support belt 7, which leads to the desired fit of the paper web to the support belt. In addition, there is still a significant increase in the effect due to the presence of the ejector effect of the air jet in the gap 10 located on the cylinder side. With this jet, it is sucked both deep from the roof of the arch 5 and through the channel from the gap located on the side of the support strip. 7. The arrows plotted in Fig. 2 clearly convey the movements of the air streams in question. .-.
    There are difficulties in using paper machines with a rsobennially increased working speed (more than 850 m / min) when feeding a paper web in the drying part. The paper; e, the web is lifted precisely when running off from the circumferential surface of the outside of the drying cylinder from the support tape. At the same time, the air drawn in between the paper web and the support belt in the subsequent passage of the web prevents wide contact between the wheels.
    five
    .
    JQ 25 - 40
    45
    Stained canvas and supporting tape. From here an unstable supply of paper web arises, in particular, blowing occurs, restless movement and also turning the edge of the paper web. As the paper web runs into the next, inside the drying cylinder, the air is again compressed between the paper web and the support belt. During movement around this drying cylinder, the paper web remains in a raised state from the support web, so that the web feed is also unstable here. This undesirable state of the paper web results in a significant reduction in the quality of the paper and, during the introduction of the web into the drying section, leads to an increased risk of breakage.
    The proposed solution eliminates the indicated disadvantages.
    权利要求:
    Claims (1)
    [1]
    1. A ventilating box for the drying part of a paper machine, comprising a body extending transversely through the drying part of the machine between two successively followed by a height-offset drying cylinders and located along the envelope of the drying cylinders of the support strip for the paper web to the wedge arch formed this tape and the second in the direction of its movement of the drying cylinder, the first wall which in its cross section passes along the supporting belt to the wedge arch and forms with it the first air the edge of the first wall of the housing located on the feed side of the tape into the first air gap is the air removal device oriented opposite to the direction of its movement, the second wall of the housing, which in its cross section is located in the surface area of the second in the direction of movement of the reference tape drying cylinder forms a second air gap with the surface of this cylinder. It is connected to the first wall in the area of the wedge vault and has an air passage opening on the wedge vault side that distinguishes - so that, in order to ensure
    1
    but
    类似技术:
    公开号 | 公开日 | 专利标题
    SU1384211A3|1988-03-23|Ventilation skip for drying section of paper-making machine
    US4551203A|1985-11-05|Method and arrangement for guiding a paper web from the press section to the drying section
    US4539762A|1985-09-10|Pocket ventilating apparatus for a multi-cylinder dryer of a paper machine
    FI67901C|1987-07-20|FOERFARANDE OCH ANORDNING I TORKPARTIET I EN PAPPERSMASKIN VID STYRNING AV BANANS SPETS.
    FI76142C|1988-09-09|FICKVENTILATIONSFOERFARANDE OCH -ANORDNING I EN PAPPERSMASKINS MAONGCYLINDERTORK.
    US5232554A|1993-08-03|Threading the web into a twin wire dryer group
    KR20010112859A|2001-12-22|Method and apparatus in the drying section of a paper machine or the like
    US5800679A|1998-09-01|Device in a paper machine or in a finishing device of a paper machine for removing dust
    US20040007341A1|2004-01-15|Method for conveying and guiding a lead-in strip of a web in a paper machine
    EP0438388B1|1993-09-29|An apparatus for maintaining the edges of a web in conformity with a dryer felt
    JPH01156263A|1989-06-19|Air guide box for stabilizing travel of web, particularly, paper web
    US5379526A|1995-01-10|Apparatus for eliminating the flutter of a paper web in the dryer section of a papermaking machine
    US5517714A|1996-05-21|Device for cleaning a circulating screen
    FI73259B|1987-05-29|PROTECTION OF THE CYLINDER OF THE CYLINDER WITH A PAPER MACHINE
    US5509215A|1996-04-23|Method and device for stabilization of a paper web in a group of cylinders in a drying section of a paper machine
    FI82502B|1990-11-30|FOERFARANDE OCH ANORDNING I TORKPARTIET AV EN PAPPERSMASKIN FOER ATT EFFEKTIVERA SPETSDRAGNINGEN AV BANAN.
    US5860223A|1999-01-19|Device for drying a web
    FI95731C|1996-03-11|The invention relates to a method and apparatus for preventing fluttering of a paper web in the drying portion of a paper machine between its two groups of a single-wire race
    FI88812B|1993-03-31|ANORDING WITH STYRING AV BANANS SPETSDRAGNINGSBAND I EN PAPPERSMASKIN
    US5893505A|1999-04-13|Guide for a material web
    US6076280A|2000-06-20|Method and device for drying a fiber web
    CS250696B2|1987-05-14|Device for material's strips drying especially of paper strips
    FI65461C|1984-05-10|FOER FAR INSPECTION AND PAPER MACHINERY FOR STABILIZATION OF PAPER MACHINES
    SE8400556L|1984-08-08|PROCEDURE AND DEVICE FOR IN A PAPER MACHINE
    JPH04316694A|1992-11-09|Blow and air-conditioning device for inverted cylinder group in drying part of paper machine
    同族专利:
    公开号 | 公开日
    SE8304603D0|1983-08-25|
    CH663042A5|1987-11-13|
    JPS6348996B2|1988-10-03|
    SE8304603L|1984-04-03|
    ATA308583A|1987-07-15|
    SE455106B|1988-06-20|
    US4502231A|1985-03-05|
    FI833550A0|1983-09-30|
    JPS59130395A|1984-07-26|
    DE3236576A1|1984-04-05|
    FI833550A|1984-04-03|
    FI72547B|1987-02-27|
    AT385062B|1988-02-10|
    FI72547C|1987-06-08|
    BR8305469A|1984-05-15|
    DE3236576C2|1988-03-24|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    US3419203A|1967-03-20|1968-12-31|Beloit Corp|High speed paper making machine|
    US3733711A|1971-09-07|1973-05-22|Scapa Dryers Ltd|Apparatus for and method of treating a web|
    FI59637C|1979-11-20|1981-09-10|Valmet Oy|ANORDNING I TORKPARTIET AV EN PAPPERSMASKIN|
    SE444589B|1980-10-23|1986-04-21|Flaekt Ab|PROCEDURE FOR VENTILATION OF CYLINDER POCKETS IN A CYLINDER DRYER AND DEVICE FOR EXECUTION OF THE PROCEDURE|
    FI62571C|1980-12-01|1983-01-10|Valmet Oy|ANORDNING VID FLERCYLINDERTORK I EN PAPPERSMASKIN|
    FI65460C|1980-12-12|1984-05-10|Valmet Oy|FOER FARANDE OCH ANORDNING VID PRESS- ELLER TORKPARTIET I EN PAPERSMASKIN|FI67107C|1983-02-07|1985-01-10|Valmet Oy|FOER FARANDE OCH ANORDNING FOER LEDANDE AV PAPPERSBANAN FRAON PRESSPARTIET TILL TORKPARTIET|
    SE450957B|1983-05-30|1987-08-17|Flaekt Ab|SEALER AT CYLINDERTORK|
    DE3328162C2|1983-08-04|1986-02-20|J.M. Voith Gmbh, 7920 Heidenheim|Paper machine|
    FI69332C|1984-03-02|1986-01-10|Valmet Oy|ANORDNING I TORKNINGSPARTIET AV EN PAPPERSMASKIN|
    US4665631A|1985-05-13|1987-05-19|Thermo Electron Web Systems, Inc.|Air sealing nozzle for high speed dryer|
    US4686777A|1986-02-21|1987-08-18|Beloit Corporation|Preventing sheet flutter in paper web dryers|
    AT387801B|1986-09-24|1989-03-28|Andritz Ag Maschf|METHOD AND DEVICE FOR THE STABILIZED GUIDANCE OF A MOVING MATERIAL RAIL|
    US5507104A|1987-02-13|1996-04-16|Beloit Technologies, Inc.|Web drying apparatus|
    US4807371A|1987-02-13|1989-02-28|Beloit Corporation|Apparatus for maintaining the edges of a web in conformity with a dryer felt|
    US6049999A|1987-02-13|2000-04-18|Beloit Technologies, Inc.|Machine and 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|
    DE3706542C2|1987-02-28|1991-02-28|J.M. Voith Gmbh, 7920 Heidenheim, De|
    DE3706541A1|1987-02-28|1988-09-08|Voith Gmbh J M|DEVICE FOR STABILIZING THE RUN OF A GOODS, IN PARTICULAR FOR STABILIZING A PAPER, IN THE DRYING PART OF A PAPER MACHINE|
    DE3707612C2|1987-03-10|1995-03-09|Voith Gmbh J M|Air guide box with a device for guiding the transfer strip through the dryer section of a paper machine|
    FI80103C|1987-06-17|1990-04-10|Valmet Paper Machinery Inc|Method and apparatus in the cylinder dryer of a paper machine, in which a double-weave pull is used|
    JPS6481745A|1987-06-23|1989-03-28|Voith Gmbh J M|Suction box|
    DE3736520C1|1987-10-28|1989-04-13|Hilmar Vits|Method and device for stabilising the flutter-prone edges of material webs guided with a free draw over rolls|
    DE3739338C2|1987-11-20|1995-09-07|Voith Gmbh J M|Air guide box for stabilizing the running of a web, in particular a paper web|
    US4821429A|1987-11-30|1989-04-18|J. M. Voith, Gmbh|Air guide box for stabilizing the run of a web, for instance a paper web|
    DE3943864B4|1988-01-22|2006-05-11|Metso Paper, Inc.|Paper-making drying section - has air suction drawn through interior of cylinders to be blown on either side to prevent web flutter|
    DE3807857C2|1988-03-10|1990-11-08|J.M. Voith Gmbh, 7920 Heidenheim, De|
    DE3807856C2|1988-03-10|1990-02-15|J.M. Voith Gmbh, 7920 Heidenheim, De|
    DE3904314A1|1989-02-14|1990-08-16|Voith Gmbh J M|Air guide device for guiding an endless material web through a multi-stage machine, especially for use in the drying section of a paper machine|
    DE3910600C2|1989-04-01|1993-10-07|Voith Gmbh J M|One-sieve dryer group|
    FI82098C|1989-05-18|1991-01-10|Valmet Paper Machinery Inc|Nozzle system for a blower box in a paper machine|
    DE4016921C2|1989-07-07|1994-04-07|Voith Gmbh J M|Device for drying a web of material|
    FI82958C|1989-09-01|1991-05-10|Tampella Oy Ab|Device at a drying section of a paper machine|
    JPH0421596U|1990-06-13|1992-02-24|
    FI95732C|1992-01-13|1996-03-11|Valmet Paperikoneet Oy|Device in the dryer section of a paper machine|
    SE9400728L|1993-03-11|1994-09-12|Voith Gmbh J M|Cylinder dryer with two wires|
    FI103820B1|1993-11-30|1999-09-30|Valmet Paper Machinery Inc|Procedures for drying a paper web and drying parts for paper machine|
    FI93875C|1994-02-17|1995-06-12|Valmet Paper Machinery Inc|Procedure for drying a paper web and drying part in a paper machine|
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    FI93876C|1994-03-25|1995-06-12|Valmet Paper Machinery Inc|Drying section in paper machine, where there are cylinder groups with simple twisting|
    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|
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    US6260287B1|1997-08-08|2001-07-17|Peter Walker|Wet web stability method and apparatus|
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    US6328852B1|1999-08-24|2001-12-11|Kimberly-Clark Worldwide, Inc.|Method and apparatus for improving stability of moving webs|
    US6484418B1|2000-11-06|2002-11-26|Kimberly-Clark Worldwide, Inc.|Yankee drying hood and method comprising angled impingement nozzles|
    FR2832084B1|2001-11-12|2004-05-14|Vai Clecim|METHOD AND DEVICE FOR STABILIZING THE HIGH SPEED SCROLLING OF A STRIP PRODUCT|
    DE10226629A1|2002-06-14|2003-12-24|Voith Paper Patent Gmbh|Device for treating a fibrous web|
    DE102004038769A1|2004-08-09|2006-02-23|Voith Fabrics Patent Gmbh|Device for web stabilization|
    US20130215202A1|2012-02-22|2013-08-22|Kevin David Koller|Helical dryer path for a print substrate web|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    DE19823236576|DE3236576C2|1982-10-02|1982-10-02|Air guide box for the dryer section of a paper machine|
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