• 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 method and apparatus in a paper making machine for transferring a web from a pick-up fabric to a flow-through drying wire for transport of the wire supported web to a flow-through dryer cylinder including passing a section of the flow-through drying wire over the web supported by the pick-up fabric thereby defining a sandwich structure of the drying wire, the web and the pick-up fabric. A first vacuum is applied by a first vacuum member on the sandwich structure from the flow-through drying wire side over a narrow first detaching zone. The direction of the pick-up fabric with respect to the flow-through drying wire is deviated and a second vacuum is applied by a second vacuum member over a second detaching zone subsequent to the first detaching zone in the direction of web travel from the drying wire side thereof thereby securing the web on the flow-through drying wire. The pick-up fabric may thus comprise either a felt or wire structure.
    公开号:SU847935A3
    申请号:SU782636448
    申请日:1978-07-07
    公开日:1981-07-15
    发明作者:Хуостила Маркку；Хаапсаари Тимо
    申请人:Ой Нокиа Аб(Фирма)；Валмет Ой (Фирма)；
    IPC主号:
    专利说明:

    The invention relates to technological methods and equipment for the manufacture of paper and may find application in the pulp and paper industry.
    There is a method according to which the drying of raw paper web on some paper machines is carried out on cylinders with a permeable θ surface covered by drying nets, while the raw paper web is transferred to ό cloth or mesh of the net portion of the boommashyids to the drying stack by creating a vacuum in the joint movement section both ' 5 grids £ 1]. · 'The disadvantages of this method include the lack of reliability of the transfer of canvas, paper, especially if the paper is thin and puffy.
    Devices are known for transferring a raw paper web containing a suction chamber installed over a drying grid and connected to a vacuum line ^ 1].
    The disadvantage of the known devices is the disadvantage. Accurate reliability and design complexity. AP
    The purpose of the invention is to increase the reliability of the transmission process.
    The objective is achieved in that · the area of the joint motion grids create two adjacent zones with different level "^ nyh in vacuum, wherein, the vacuum level in the first zone along the web You are a Chez g, Th ^ _, in the second zone.
    In order to increase the reliability of the device, the suction chamber has a transverse partition dividing it into two cavities, while the wall adjacent to the moving web in the first cavity has a transverse gap and in the second cavity this wall is made in the form of a plate with perforation * and / or slots .
    The transverse baffle may be equipped with a throttling device for regulating the level of vacuum in the second cavity.
    The drawing shows a diagram of a device ^ implementing the proposed method.
    The device consists of a drying cylinder 1 with a permeable surface mounted in a drying hood and covered by a drying net 3, which has a section of joint movement with a cloth or net 4, transferring a raw cloth. Taking into account the joint movement of the grids 3 and 4 ', a suction chamber 5 is mounted, connected by line 6 to the vacuum generator 7. The suction chamber 5 is divided by a transverse partition 8 into two cavities. The first cavity 9 along the web has a transverse slit 10 on the side of the moving web. The second cavity 11 has a wall on the canvas side, made in the form of a plate with perforation and / or slots. The transverse partition 8 may have a throttling device 12 for regulating the vacuum in the cavity 11. The device also contains a grid 13 for transferring the dried web to, a valve 14 for regulating the vacuum in the chamber 5.
    The method is as follows.
    The raw paper web enters through the net or cloth 4 to the joint movement area of the grids 3 and 4. Using the chamber 5 with the transverse partition 8, two vacuum zones are created in the joint movement area of the grids, and in the zone formed by the cavity 9 the vacuum is higher than in the 'cavity 11. As a result, through the slot 10, the crude web is separated from the net 3 and transferred to the net 3. In the cavity 11, the paper web attached to the net 3 is transported under the drying hood 2, and the net 4 is deflected by a certain angle and completely released It makes a paper web, which is then dried on the drying cylinder 1 by sucking hot air from the drying hood into the internal cavity of the cylinder 1 through its permeable surface. After drying, the web is transferred to the next mesh 1 3.
    The vacuum level in the chamber 5 can be controlled by a valve 14 installed on the line 6. In this case, in the cavity 11 of the chamber 5, additional adjustment of the vacuum can also be carried out by means of a throttling device 12 mounted on the transverse partition 8.
    The present invention allows for reliable transfer of paper, especially thin and puffy, in the drying 'part of the paper machine.
    权利要求:
    Claims (3)
    [1]
    degrading raw canvas. At the site of joint movement of the grids 3 and 4, a suction chamber 5 is mounted, with a 5 connected line 6 with a vacuum generator 7. The suction chamber is divided 5 times by a transverse wall 8 into two cavities. The first cavity 9 along the web has a transverse slit 10 from the side of the moving web. The second cavity 11 has a wall on the side, made in the form of a plate, with perforations and / or slits. The transverse discharger 8 may have a throttling device 12 for adjusting the vacuum in the cavity 11. The device also contains a net 13 for transmitting the dried web to the valve 14 for regulating the vacuum in the chamber 5. The method is degraded in the following way. The raw paper web enters the grid or cloth 4 to the joint movement of the grids 3 and 4. When the camera 5 is equipped with a transverse partition 8, two vacuum zones are created in the joint movement of the grids, and in the zone formed by the cavity 9 there is a vacuum better than the cavity 11 As a result, through the slit 10, the raw web is separated from the net 3 and transferred to the net 3. On the portion of the cavity 11, the paper web attached to the net 3 is transported under the drying bell 2, and the net 4 is inclined at a certain angle and completely free a paper web, which is then podver gaets dried on the drying cylinder 1 by sucking the hot air from the drying hood to the interior cavity of the cylinder 1 through its permeable surface. After drying, the web is transferred to the next grid 13. The vacuum level in the kg-keeper 5 can be adjusted by means of a valve 14 installed on line 6. In the cavity 11 of the chamber 5, additional vacuum adjustment can also be performed by means of a throttling device 12 mounted on the transverse partition 8. The present invention allows reliable transfer of paper, especially thin and thick, to the drying part of the paper machine. Claim 1. A method of transferring from a loose paper web from a carrier felt or net to a net, covering a drying cylinder, c. permeable surface, by creating a vacuum in the area of joint movement of both grids, so that, in order to increase the reliability of the transfer process, in the area of joint movement of grids create two adjacent zones with different levels of vacuum in them The vacuum level in the first zone along the web is higher than in the second zone.
    [2]
    2. A device for carrying out the method according to claim 1, comprising a suction chamber installed above the drying grid and connected to a vacuum line, characterized in that, in order to increase the operation of the device, the suction chamber has a transverse partition dividing it into two cavities, with the machine, adjacent to the moving body, the web in the first cavity has a transverse slit, and in the second cavity this wall is made in the form of a plate with perforations and / or crevices.
    [3]
    3. The apparatus of claim 2, wherein the transverse partition is provided with a throttling device for adjusting the vacuum level in the second cavity. Sources of information taken into account in the examination 1. US patent 3303576, cl. 34-115, 1967 (prototype)
    类似技术:
    公开号 | 公开日 | 专利标题
    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
    SU908252A3|1982-02-23|Apparatus for drying paper web in paper-making machine
    CA1171650A|1984-07-31|Device in the drying section of a paper machine
    US3034180A|1962-05-15|Manufacture of cellulosic products
    SE7702841L|1978-08-25|TISSUE PAPER MACHINE
    IE782197L|1979-05-08|Producing fibrous webs
    ES271722U|1983-10-01|Method and apparatus for making a patterned non-woven fabric.
    ES362198A1|1970-12-01|Method and equipment for drying web material
    US4203714A|1980-05-20|Apparatus for vacuum processing of concrete
    ES450401A1|1977-08-01|High bulk tissue forming and drying apparatus
    GB1516573A|1978-07-05|Dry-laying a web of particulate or fibrous material
    GB1529007A|1978-10-18|Production of fibre webs
    SE8703251D0|1987-08-21|METHOD AND DEVICE FOR A PAPER MACHINE VIA PARTY
    FI880224A|1988-01-19|FIXERINGSANORDNING.
    SU698552A3|1979-11-15|Apparatus for drying loose materials
    JPH04316694A|1992-11-09|Blow and air-conditioning device for inverted cylinder group in drying part of paper machine
    US3355350A|1967-11-28|Paper machine
    SE8306009D0|1983-11-02|PROCEDURE AND DEVICE IN THE DRYING PART IN A PAPER MACHINE FOR STABILIZING THE PAPER BAN
    FI112268B|2003-11-14|Apparatus and method for making tissue paper
    GB1191536A|1970-05-13|Method and Apparatus for Drying Wet Paper Webs and Product Obtained with such Method.
    US1214712A|1917-02-06|Paper-machine.
    GB1389992A|1975-04-09|Machine for making tissue paper
    SU1044706A1|1983-09-30|Hydraulic strip for wire portion of paper-making machine
    US3743571A|1973-07-03|Paper web formation using dual fabrics
    US3140930A|1964-07-14|Belt conveyor drier for web material
    同族专利:
    公开号 | 公开日
    FR2396829A1|1979-02-02|
    IT7825449D0|1978-07-07|
    GB2001369B|1982-01-27|
    IT1096912B|1985-08-26|
    BR7804397A|1979-02-28|
    SE420747B|1981-10-26|
    DE2829341A1|1979-01-25|
    US4194947A|1980-03-25|
    FI54164B|1978-06-30|
    ATA484178A|1982-04-15|
    FI54164C|1978-10-10|
    JPS5418909A|1979-02-13|
    CA1120260A|1982-03-23|
    SE7807600L|1979-01-09|
    GB2001369A|1979-01-31|
    NO782384L|1979-01-09|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    GB602237A|1944-03-13|1948-05-24|Beloit Iron Works|Improvements in or relating to paper making machines, and suction transfer roll assemblies suitable for use in the improved paper making machines|
    US2537129A|1945-10-05|1951-01-09|Beloit Iron Works|Structure for web transfers|
    US3303576A|1965-05-28|1967-02-14|Procter & Gamble|Apparatus for drying porous paper|
    US3560333A|1967-08-15|1971-02-02|Scott Paper Co|Method and apparatus for drying paper on a yankee dryer|
    DE2212209C3|1972-03-14|1980-05-29|Escher Wyss Gmbh, 7980 Ravensburg|Dryer section|
    US3821068A|1972-10-17|1974-06-28|Scott Paper Co|Soft,absorbent,fibrous,sheet material formed by avoiding mechanical compression of the fiber furnish until the sheet is at least 80% dry|
    GB1389992A|1973-04-19|1975-04-09|Valmet Oy|Machine for making tissue paper|
    US4036684A|1975-08-04|1977-07-19|Beloit Corporation|High bulk tissue forming and drying apparatus|
    FI752585A|1975-09-16|1977-03-17|Valmet Oy|
    FI74060C|1975-09-17|1987-12-10|Valmet Oy|tissue Paper Machine|US4551203A|1984-04-02|1985-11-05|Valmet Oy|Method and arrangement for guiding a paper web from the press section to the drying section|
    US4781795A|1986-04-08|1988-11-01|Ray R. Miller|Heated drum having high thermal flux and belt press using same|
    US4758310A|1986-04-08|1988-07-19|Miller Ray R|Belt and drum-type pressing apparatus|
    US4877487A|1986-04-08|1989-10-31|Miller Ray R|Belt and drum-type press with supplemental nip loading means|
    US4710271A|1986-04-08|1987-12-01|Ray R. Miller|Belt and drum-type press|
    US4740305A|1986-10-23|1988-04-26|Miller Ray R|Method and apparatus for treatment of a permeable web with a fluid|
    US5591298A|1988-01-19|1997-01-07|Kimberly-Clark Corporation|Machine for ultrasonic bonding|
    US5051122A|1990-01-03|1991-09-24|Ppg Industries, Inc.|Method and apparatus for manufacturing continuous fiber glass strand reinforcing mat|
    EP0505323B2|1991-03-21|2001-11-07|Maschinenfabrik Wifag|Method of adjusting the screendot sizes of a rotary offset printing machine|
    FI87669C|1992-03-02|1993-02-10|Valmet Paper Machinery Inc|FOERFARANDE OCH TORK VID TORKNING AV PAPPER|
    SE470134B|1992-04-23|1993-11-15|Valmet Karlstad Ab|Ways of converting a conventional tissue machine to a TAD machine, as well as a suitable "C-wrap" type double wire former|
    FI100013B†|1993-03-22|1997-08-15|Valmet Paper Machinery Inc|Drying procedure and drying module and drying portions where applied, especially for a fast-moving paper machine|
    US5600898A|1995-09-12|1997-02-11|Beloit Technologies, Inc.|Curl control by dryer aircaps in top felted dryer section|
    US5787603A|1995-10-27|1998-08-04|Voith Sulzer Papiermaschinen Gmbh|Pressing the web to the dryer in a dryer section|
    CA2190563C|1996-11-18|1999-10-26|Ralph Mancini|Device and method to stabilize sheet between press section and dryer section of a paper-making machine|
    CA2199328C|1997-03-06|2006-12-12|Gary W. Hodgins|Paper machine frame installation|
    US6260287B1|1997-08-08|2001-07-17|Peter Walker|Wet web stability method and apparatus|
    US6209224B1|1998-12-08|2001-04-03|Kimberly-Clark Worldwide, Inc.|Method and apparatus for making a throughdried tissue product without a throughdrying fabric|
    US6199296B1|1999-12-16|2001-03-13|Valmet-Karlstad Ab|Seal arrangement for through-air drying papermaking machine|
    US7721464B2|2003-09-12|2010-05-25|Kimberly-Clark Worldwide, Inc.|System and process for throughdrying tissue products|
    US6904700B2|2003-09-12|2005-06-14|Kimberly-Clark Worldwide, Inc.|Apparatus for drying a tissue web|
    US6877246B1|2003-12-30|2005-04-12|Kimberly-Clark Worldwide, Inc.|Through-air dryer assembly|
    DE102005000782A1|2005-01-05|2006-07-20|Voith Paper Patent Gmbh|Drying cylinder for use in the production or finishing of fibrous webs, e.g. paper, comprises heating fluid channels between a supporting structure and a thin outer casing|
    DE102005000795A1|2005-01-05|2006-07-13|Voith Paper Patent Gmbh|Apparatus and method for producing and / or refining a fibrous web|
    DK2085504T3|2008-02-04|2011-04-04|Albis Spa|Suction device for transferring a nonwoven layer|
    WO2020005236A1|2018-06-27|2020-01-02|Kimberly-Clark Worldwide, Inc.|Through-air drying apparatus and methods of manufacture|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    FI772149A|FI54164C|1977-07-08|1977-07-08|FOER REQUIREMENTS FOR ANIMAL READING AV EN TISSUEPAPPERSBANA FRAON PICK-UP-VAEVNADEN OCH FOER DESS OEVERFOERING TILL EN GENOMSTROEMNINGSTORK|
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