• 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:
    1. NETWORK OF A PAPER-DECOMING MACHINE containing a loader having a channel facing an endless belt sieve with an outlet zone for supplying a pulp flow to the sieve formed by two guiding walls, one of which contacts the supporting surface with an elongated supporting lip the radius of the surface extending beyond the zone of the outlet, which passes into the zone of formation of the sheet, limited on the one hand by the support shoe, and the other side - a sieve supported by a guide shoe having a convexly-curved radius surface characterized by. In order to reduce production costs and ensure uniform distribution of the fibers in the moldable web, the radius of the support shoe in the area of the outlet orifice is at least equal to the bending radius of the guide shoe, and the guide shoe is located inside the loop of the ribbon sieve. 2. The grid part according to claim 1, which is different in that the guide shoe has a displacement adjuster across the width of the machine. 3. The grid part of PP. 1 to 2, characterized in that the support shoe has a means for moving it along the support surface of the guide wall. A) 4. The grid part according to claim 3, about the aphids, so that the displacement of the shoe has a regulator. 5. The grid part of PP. 1-4, to characterized in that over 00 with the support shoe in the direction of the mass flow, it has a chamber of increased air pressure 42, located iio the entire width of the machine and equipped with CO. seals in the form of one or more throttling Blinds.
    公开号:SU1123543A3
    申请号:SU823473004
    申请日:1982-07-16
    公开日:1984-11-07
    发明作者:Шиль Кристиан
    申请人:Й.М.Фойт Гмбх (Фирма)；
    IPC主号:
    专利说明:

    The invention relates to the fabrication of mesh parts of paper making machines. The known mesh part of the papermaking machine contains a loader having a channel facing the endless belt sieve with a zone of an outlet for supplying a pulp flow to the sieve, formed by two guiding walls, one of which contacts the supporting surface with an elongated tread shoe having a convex a radially curved surface extending beyond the zone of the outlet, which passes into the web forming zone, bounded on one side by the supporting frame, and on the other by the screen m opirayuschims on the guide shoe having a radially vypukloizognututo surface disadvantage of the known wire section of a paper machine is that the average flux lines of substances within the outlet has a smaller turning radius than the web forming zone. As a result, at high operating speeds in the web-forming zone (when viewed in the longitudinal direction) secondary flows may occur that are directed across the main flow, which can lead to an uneven distribution of the fibers. Furthermore, the whole process is repeated many times. The purpose of the invention is to reduce production costs and ensure uniform distribution of the fibers to the moldable web. . The set goal is achieved by the fact that in the grid part of a papermaking machine containing a loader having a channel facing an endless belt sieve with an outlet zone for supplying a flow of fibrous mass to the sieve, two guide walls, one of which contacts the supporting surface with an elongated support shoe, a radially curved surface that extends beyond the zone of the outlet orifice that passes into the web forming zone, which is bounded on one side by on the other hand, a sieve supported by a guide shoe with a radius-convex surface, the radius of the support shoe in the area of the outlet hole is at least equal to the radius of bending of the guide shoe, (and the guide shoe is located inside the loop of the ribbon sieve In this case, the guide shoe has a regulator for moving it across the width of the machine. In addition, the support shoe has a means for moving it along the bearing surface of the guide wall. Moreover, the means of moving the shoe has a regulator. Behind the support shoe in the direction of mass flow, the grid part has a chamber of increased air pressure located across the entire width of the machine and provided with seals in the form of one or more throttling curtains. FIG. 1 shows the net part of a paper machine, general view; in fig. 2 — support and guide shoes} in FIG; 3 - grid part with two loaders; in fig. 4 - the same, with four loaders. The papermaking portion of the paper machine contains an endless belt sieve 1 moving along the guide rollers 2-5 and the loader 6. The roller 4 is adjustable and the roller 5 is tensioned (Fig. 1). The loader 6 has a transverse distribution pipe 7, a pipe 8 and an output channel 9 formed by two guide pins 10 and 11 with an outlet 12 for supplying the fibrous mass to the sieve 1. The guide wall 11 contacts the support surface with an elongated support shoe 13 having a radially bent radially, surface extending beyond the zone of the outlet port 12. The zone of the outlet port 12 passes into the web forming zone 14, bounded on the one side by the support shoe 13 , and the other, a sieve 1. The sieve 1 rests on a guide shoe 15, which cuts a convexly-curved radial surface. The radius of the support shoe 13 in the zone of the outflow opening 12 is at least equal to the p-radius of the bending of the guide shoe 15. The guide shoe 5 is located inside the loop of the belt sieve 1.
    - The guide shoe 15 (Fig. 2) is fixed on the support 16 and has a movement regulator across the width of the machine, made in the form of a clamp 17 fixed on the support 18. The support 18 is fixed with screws 19 on the support 16. On the support 16 Spindles 20 with two nuts 21 are placed along its entire length. Each spindle 20 passes through the hole 22 in the support 18, Aligning one of the screws 19, the support 18 with the guide screw 15 is displaced towards the guide wall 10.
    After exiting the outlet 12, the mass flow from the side facing the belt sieve t, freely falls on the internal sieve 1 at point 23 (a curved line), which before at point 2D goes down from the directional shoe 15. The distance between the directional shoe 15 and the end of the guide wall 10 is set as short as possible so that the length of the free fall portion of the mass flow, i.e. the distance between the outlet hole 12 and the screen sieve 1 was the smallest. The radius of curvature K of the guide shoe 15 is typically less than 100 mm, which also contributes to reducing the free fall portion of the mass flow.
    The support shoe 13 has a mechanism for moving it along the support surface 25 of the supporting wall 11, made in the form of rods 26 (Fig. 2). The rods 26 are located in the holes 27 of the wall 28 of the stiffness and can move in them in the axial direction, i.e. to outlet 12 and back. The movement mechanism of the shoe 1 3 has a regulator in the form of an adjusting nut 29, which with its external thread engages with the thread of the opening of the support 30. Each of the nuts 29 can independently rotate, whereby the movement of the support shoe 13 can be adjusted
    the width of the car. R
    The wall 28 with the guide wall 11 forms a cavity 31 into which air is supplied through the nozzle 32 under pressure, which through the holes 33 enters the plenum chamber 34. The pressure chamber 34 is located behind the support shoe 13 across the entire width of the machine in the direction of mass flow and has seals in the form of one or more chokes 35 curtains 35 fixed on the support 30.
    The cloth band 36 or belt sieve 1 is moved by a shaft 37, onto which a formed web of paper passes from the belt sieve and which is then fed to dewatering and vystat plants (not shown).
    Curved surface reference. The shoe 13, which is in contact with the mass flow, can be even or slightly curved with a very large radius of curvature M. Then follows a section with a large curvature radius T and a section with a small radius of curvature R. ) and tangent to it t. Flax Exact sieve 1 in this place is moved in such a way that it forms an angle of 0.5-5 with the tangent t, and the angle is measured with the tensioned sieve in an idle machine.
    Under the ribbon skut 1, in the web formation zone 14, there is a bath 39 for collecting the subgrid box and a suction box 40 for draining the web.
    The grid part (Fig. 3) has two loaders 41 and 42. The loader 41 is located horizontally, and the loader 42 is vertical. The curved surface of the support shoe 43 of the loader 41 is relatively short and slightly curved. The mass flow in their web forming zone is deflected a 45.
    The support shoe 44 of the loader 42 has a larger portion with a curved surface and with a large radius of curvature. As a result, a higher dewatering resistance is created by the first layer of fibrous material formed by the first loader 41, which can be used to obtain a lower dewatering rate due to the large average radius of curvature when molding the first layer of fibrous material. As a result, the fibers are less likely to get stuck in the cells of the sieve t.
    The loaders 41 and 42 have baths 45 and 46 for subgrid water. Each of the baths through pipes 47 and 48 is connected to tanks 49 and 50 for sub-flow water. In the future, the water of these tanks is mixed, since
    the circulation pump 51 is connected to the reservoir 50 via the flow tube 52, and the circulation pump 53 is connected to the reservoir 49 via the conduit 54. Due to this, a part of the subgrid water not used by the pump 53 is transferred from the reservoir 49 to the reservoir 50.
    The grid part (Fig. 4) has three loaders 55-57, which are supported. Support shoes 58-60 ,, Their guides (shoes 61 and 62 are fixed on the suction boxes 63 and 64.
    The proposed grid part of the boom cutting machine reduces production costs and ensures a rational distribution of the fibers in the forked web.
    FIG L
    phage.Z
    fig L
    权利要求:
    Claims (5)
    [1]
    1. GRID PART OF A PAPER MACHINE, comprising a loader, having a channel facing an infinite belt sieve with an outlet opening for supplying a pulp stream to the sieve, formed by two guide walls, one of which contacts the supporting surface with an elongated supporting shoe having a radius convexly curved surface extending beyond the aeons of the outlet, which goes into the zone of forming the web, limited on one side by a support shoe, and on the other hand by a sieve, opio expanding on the guide shoe, having a convex-curved radius radius surface, distinguishing from s. the fact that, in order to reduce production costs and ensure uniform distribution of fibers in the spunbond. web, the radius of the support shoe in the area of the outlet is at least equal to the bending radius of the guide shoe, the guide shoe being located inside the loop of the belt sieve.
    [2]
    2. The grid part by π. 1, characterized in that the guide shoe has a regulator for moving it along the width of the machine.
    [3]
    3. The grid part according to paragraphs. 1 and 2, characterized in that the supporting shoe has a means of moving it along the supporting surface of the guide wall.
    [4]
    4. The mesh part according to claim 3, characterized in that the shoe moving means has a regulator.
    [5]
    5. The grid part according to paragraphs. 1-4, characterized in that behind the support shoe in the direction of mass flow, it has a chamber for increased air pressure located ho throughout the entire width of the machine and provided with seals in the form of one or more throttling Shutters.
    SU, η, 1123543
    1 1123543
    类似技术:
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    FI77281C|1989-02-10|HYBRIDFORMARE FOER EN PAPPERSMASKIN.
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    US4234382A|1980-11-18|Former for a paper machine
    US2473269A|1949-06-14|Papermaking machine
    US3764465A|1973-10-09|Suction box and baffle for fourdrinier type of papermaking machine
    US2756650A|1956-07-31|Flow control apparatus
    KR840000111B1|1984-02-11|Method of attaining uniformity in paper webs on a roll former
    US3832282A|1974-08-27|Submerged twin wire paper former
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    US4659432A|1987-04-21|Vat paper machine
    US3578556A|1971-05-11|Vertical paper machine wherein stock impinges wires below the breast rolls
    FI84638B|1991-09-13|Hybrid former for a paper machine
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    US4285768A|1981-08-25|Apparatus for dewatering fiber suspension for producing a web of fiber
    同族专利:
    公开号 | 公开日
    DE3128156A1|1983-01-27|
    FI822522L|1983-01-17|
    US4416730A|1983-11-22|
    DE3128156C2|1985-01-24|
    FI822522A0|1982-07-15|
    BR8203666A|1983-06-21|
    JPS5823985A|1983-02-12|
    AT16948T|1985-12-15|
    EP0069925A1|1983-01-19|
    EP0069925B1|1985-12-11|
    JPH0210277B2|1990-03-07|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    US2718824A|1951-10-25|1955-09-27|Beloit Iron Works|Headbox for paper making machine|
    US3132990A|1962-10-19|1964-05-12|Diamond National Corp|Paper making apparatus|
    US3582467A|1968-06-25|1971-06-01|Beloit Corp|Two wire former|
    DE2552485A1|1975-11-22|1977-06-02|Voith Gmbh J M|CYLINDRICAL GUIDE DEVICE FOR FIBER WAYS|
    CA1073718A|1977-09-12|1980-03-18|Dominion Engineering Works Limited|Twin wire free loop web former|
    DE2754622C3|1977-12-08|1981-08-06|J.M. Voith Gmbh, 7920 Heidenheim|Wet end of a paper machine|
    DE2908791C3|1979-03-07|1981-08-13|J.M. Voith Gmbh, 7920 Heidenheim|Web forming section of the wire section of a paper machine|EP0079316B1|1981-11-10|1987-12-23|Mölnlycke Aktiebolag|Web forming method and device|
    AT376722B|1983-02-09|1984-12-27|Andritz Ag Maschf|DRAINAGE MACHINE FOR CELLULAR OD. DGL. FIBER MATERIAL|
    SE441195B|1984-04-10|1985-09-16|Moelnlycke Ab|DEVICE FOR SHAPING A FIBER COAT|
    US4780183A|1987-11-03|1988-10-25|Huyck Corporation|Method of using a dual compartment vacufoil unit to eliminate secondary headbox chatter|
    US4861432A|1987-11-03|1989-08-29|Huyck Corporation|Dual compartment vacufoil unit to eliminate secondary headbox chatter|
    GB8903517D0|1989-02-16|1989-04-05|Beloit Corp|A forming apparatus for forming a web from stock|
    GB8906275D0|1989-03-18|1989-05-04|Beloit Corp|Web former|
    FI934697A|1992-11-05|1994-05-06|Voith Gmbh J M|Inloppslaoda Foer en pappersmaskin med en modifierbar underlaepp|
    US6117271A|1998-04-15|2000-09-12|Beloit Technologies, Inc.|Slice lip apparatus|
    JP3297661B2|2000-02-02|2002-07-02|株式会社ヤマダコーポレーション|Pump device for high viscosity fluid pumping|
    FI20075452A|2007-06-15|2008-12-16|Upm Kymmene Corp|Method and apparatus for making paper|
    JP4887311B2|2008-01-30|2012-02-29|ＹｋｋＡｐ株式会社|Face material support structure and joinery|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    DE3128156A|DE3128156C2|1981-07-16|1981-07-16|Wire section of a paper machine|
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