Lamella of a headbox of a paper, cardboard, or tissue machine
    1.
    发明授权
    Lamella of a headbox of a paper, cardboard, or tissue machine 失效
    纸板,纸板或纸巾机的流浆箱的薄片

    公开(公告)号:US06761801B2

    公开(公告)日:2004-07-13

    申请号:US09978041

    申请日:2001-10-17

    IPC分类号: D21F102

    CPC分类号: D21F1/02 D21F1/028

    摘要: Lamella and headbox of a web production machine. The lamella is formed of at least one high-performance polymer. The at least one high-performance polymer includes high stability, high heat resistance, and good to very good resistance to at least one of alkaline solution and acid. The headbox includes the lamella.

    摘要翻译: 网页制作机的薄膜和流浆箱。 薄片由至少一种高性能聚合物形成。 所述至少一种高性能聚合物包括高稳定性,高耐热性,以及对至少一种碱性溶液和酸的良好至极好的耐受性。 流浆箱包括薄片。

    Headbox
    2.
    发明授权
    Headbox 失效
    流浆箱

    公开(公告)号:US06471828B1

    公开(公告)日:2002-10-29

    申请号:US09589893

    申请日:2000-06-09

    IPC分类号: B22D1726

    摘要: Headbox for a machine and process for forming the same. The headbox includes a plurality of channels arranged in rows that extend across a width of the machine and in columns substantially perpendicular to the rows, at least one lamella positioned between adjacent rows, a fixing point for the at least one lamella, and lamellar supports positioned after the fixing point, relative to a headbox flow. This includes arranging a plurality of headbox channels into rows and columns, positioning a lamella between adjacent rows, fixing an end of the lamella at a fixing point, and arranging lamellar supports downstream of, relative to a headbox flow direction, the fixing point.

    摘要翻译: 流浆机用于形成机器和过程。 流浆箱包括排列成行的多个通道,其横跨机器的宽度延伸并且基本上垂直于行排列,至少一个位于相邻行之间的薄片,用于至少一个薄片的固定点,以及层状支撑件 在固定点之后,相对于流浆箱流。 这包括将多个流浆箱通道布置成行和列,将相邻行之间的薄片定位,将薄片的一端固定在固定点,以及相对于流浆箱流动方向在固定点的下游布置层状支撑件。

    Device for detecting and correcting a fiber orientation cross direction profile change
    3.
    发明授权
    Device for detecting and correcting a fiber orientation cross direction profile change 失效
    用于检测和校正纤维取向横向轮廓变化的装置

    公开(公告)号:US06174413B1

    公开(公告)日:2001-01-16

    申请号:US09126808

    申请日:1998-07-31

    IPC分类号: D21F106

    摘要: Process and a device for detecting a change in the fiber orientation cross-direction profile of a paper or cardboard web in the manufacturing process on a paper or cardboard machine. It is recognized that a change in the fiber orientation cross-direction profile in the web is inferred or determined by way of a characteristic change in the basis weight cross-direction profile or at least one measurement quantity that correlates to it, and/or by way of a characteristic change in the basis weight in the travel direction of the web or at least one measurement quantity that correlates to it. The device includes an arrangement for detecting a change in the basis weight cross-direction profile and/or a characteristic chronological course of the change in the basis weight, which is characteristic for a change in the fiber orientation.

    摘要翻译: 用于在纸或纸板机器上的制造过程中检测纸或纸板纸的纤维取向横向轮廓的变化的方法和装置。 应当认识到,通过基重交叉方向分布的特征变化或与其相关联的至少一个测量量来推断或确定幅材中的纤维取向横向分布的变化,和/或由 在幅材的行进方向上的基重的特征变化的方式或与其相关联的至少一个测量量。 该装置包括用于检测基重交叉方向分布的变化和/或基重变化的特征时间过程的布置,其是纤维取向的变化的特征。

    Process and dryer section for drying a running web in a paper or board
making machine
    5.
    发明授权
    Process and dryer section for drying a running web in a paper or board making machine 失效
    用于在纸或纸板制造机中干燥运行的纸幅的工艺和烘干部分

    公开(公告)号:US4982513A

    公开(公告)日:1991-01-08

    申请号:US398053

    申请日:1989-08-24

    IPC分类号: D21F5/04

    CPC分类号: D21F5/04

    摘要: A dryer section of a paper or board making machine has a plurality of dryers. In a first group of dryers, each dryer heats the web somewhat more, but not to the level of the maximum evaporation rate of the moisture contained in the web. As the web is passing the end of the first group, the web is heated to such a high temperature that it reaches the maximum evaporation rate of the moisture in the web. The dryers in the first group have smaller diameters, which may gradually increase up to the region of the maximum evaporation rate, or they may all be of one smaller size. The dryer section has a second group of dryers in which each dryer heats the web to the maximum evaporation rate of the moisture contained in the web. The dryer at the beginning of the second group has the largest diameter. The following dryers in that group can have a smaller diameter. The dryers in the second group may be grouped in groups of decreasing size, or may gradually decrease in size. Advantageously, each group of dryers (A,B) is divided into subgroups (A.sub.1 ; A.sub.2 ; B.sub.1 ; B.sub.2 ; B.sub.3 ; B.sub.4) wherein first, one side of the web contacts all the dryers of one subgroup (for example A.sub.1), and then the other side of the web contacts all the dryers in the next subgroup (for example A.sub.2), and each subgroup is associated with one and only one fabric belt such as a felt or wire.

    Dryer section for drying a running web in a paper or board making machine
    6.
    发明授权
    Dryer section for drying a running web in a paper or board making machine 失效
    用于干燥纸张或纸板制造机器中的运行纸幅的干燥部分

    公开(公告)号:US4882855A

    公开(公告)日:1989-11-28

    申请号:US213094

    申请日:1988-06-29

    IPC分类号: D21F5/04

    CPC分类号: D21F5/04

    摘要: An apparatus in the dryer section of a paper or board making machine, wherein the section has a plurality of dryers. There is an initial region of dryers, each of which heats the web somewhat more, but not to the level of the maximum evaporation rate of the moisture contained in the web. It is not until the web is passing the end of said initial region that the web is heated to such a high temperature that it reaches the maximum evaporation rate of moisture in the web. The dryers of the initial region have smaller diameters, which may gradually increase up to the region of maximum evaporation rate, or they may all be of one smaller size. Following the initial region the dryer section has a region of dryers in which each dryer heats the web to the maximum evaporation rate of the moisture contained in the web. The dryer at the beginning of that regions has the largest diameter. The following dryers in that region may have a small diameter, because with less remaining moisture in the web, the web needs to contact each succeeding dryer for a decreasing length of time to still reach the maximum evaporation rate of moisture. The dryers in the region of maximum evaporation rate may gradually decrease in size, or may be grouped in groups of decreasing size.

    摘要翻译: 纸或纸板制造机的干燥部中的装置,其中该部分具有多个干燥器。 存在干燥器的初始区域,每个干燥器的每一个都稍微加热幅材,但是不能达到包含在幅材中的水分的最大蒸发速率的水平。 直到网状物通过所述初始区域的末端,即网状物被加热到如此高的温度,使其达到网状物中最大的水分蒸发速率。 初始区域的干燥器具有较小的直径,其可以逐渐增加到最大蒸发速率的区域,或者它们都可以是一个较小的尺寸。 在初始区域之后,干燥器部分具有干燥器的区域,其中每个干燥器将幅材加热到包含在幅材中的水分的最大蒸发速率。 该区域开始时的干燥器具有最大的直径。 该区域中的以下干燥器可能具有小的直径,因为在幅材中较少的剩余水分,纤维网需要接触每个随后的干燥器减少长度的时间,以达到最大的湿度蒸发速率。 最大蒸发速率区域中的干燥器的尺寸可能逐渐减小,或者可以按尺寸减小的组分组。

    HEADBOX, SHEET FORMING UNIT WITH A HEADBOX AND METHOD FOR OPERATING A SHEET FORMING UNIT
    7.
    发明申请
    HEADBOX, SHEET FORMING UNIT WITH A HEADBOX AND METHOD FOR OPERATING A SHEET FORMING UNIT 审中-公开
    HEADBOX,具有HEADBOX的成型单元和用于操作成形单元的方法

    公开(公告)号:US20120186767A1

    公开(公告)日:2012-07-26

    申请号:US13370782

    申请日:2012-02-10

    IPC分类号: D21F1/00

    摘要: A headbox includes a feed device feeding the fibrous material suspension, a nozzle, and a turbulence-generating device. The fibrous material suspension is guided in the turbulence-generating device in sub-flows through turbulence-generating channels. Within the individual turbulence-generating channel of the turbulence-generating device, at least one region forming a fluidization region is provided, in which a pressure loss can be generated in the sub-flow of the fibrous material suspension guided through said region. The nozzle and the turbulence-generating device are designed and dimensioned such that they are suitable for setting a dwell time of ≦200 ms of the fibrous material suspension flowing through the same from a final fluidization region of an individual turbulence-generating channel before inlet into the nozzle as far as the outlet gap of the nozzle, and a pressure loss of ≧50 mbar in the final fluidization region upstream of the inlet into the nozzle.

    摘要翻译: 流浆箱包括供给纤维材料悬浮液的进料装置,喷嘴和湍流产生装置。 纤维材料悬浮液在湍流产生装置中在通过湍流产生通道的子流中被引导。 在湍流产生装置的单个湍流产生通道内,提供形成流化区域的至少一个区域,其中在通过所述区域引导的纤维材料悬浮液的副流中可产生压力损失。 喷嘴和湍流发生装置的设计和尺寸被设计成使得它们适合于设置从入口之前的单个湍流产生通道的最终流化区域流过的200ms的纤维材料悬浮液的停留时间; 进入喷嘴直到喷嘴的出口间隙,并且在进入喷嘴的入口的上游的最终流化区域中的压力损失为≥50mbar。

    Headbox and process for the metered addition of a fluid medium into a suspension stream of a headbox
    8.
    发明授权
    Headbox and process for the metered addition of a fluid medium into a suspension stream of a headbox 失效
    用于将流体介质计量添加到流浆箱的悬浮液流中的流浆箱和方法

    公开(公告)号:US06464837B1

    公开(公告)日:2002-10-15

    申请号:US09497162

    申请日:2000-02-03

    IPC分类号: D21F100

    摘要: Process for a metered addition of a fluid medium into a material suspension stream of a headbox, including feeding the material suspension in a main flow direction through at least one turbulence-producing conduit to a headbox nozzle, the at least one turbulence-producing conduit having an entrance, a graduated pressure loss area, and an exit. A total pressure loss &Dgr;Ptotal is caused in the at least one turbulence-producing conduit such that the total pressure loss &Dgr;Ptotal includes at least one intake pressure loss &Dgr;Pintake formed at the entrance and a graduated pressure loss &Dgr;Pgrad formed at the graduated pressure loss area. A metered addition of a fluid medium is also provided in a region between the entrance and the exit. The headbox for one of a paper and cardboard machine includes at least one material suspension supply running a width of the machine, at least one turbulence producer having at least one conduit through which a material suspension flows, at least one metered suspension supply running a width of the machine, at least one turbulence producer having at least one conduit through which a material suspension flows, at least one metered addition point located in the conduit for introducing a fluid medium, and a headbox nozzle located downstream from the at least one turbulence producer for delivering the material suspension. A portion of a flow resistance located downstream of the metered addition point is at least approximately 50% of a total flow resistance of the at least one conduit.

    摘要翻译: 用于将流体介质计量添加到流浆箱的材料悬浮液流中的方法,包括将主流动方向上的材料悬浮液输送通过至少一个湍流产生管道至流浆箱喷嘴,所述至少一个湍流产生管道具有 一个入口,一个毕业的压力损失区域和一个出口。 在至少一个湍流产生管道中引起总压力损失DELTAP总计,使得总压力损失DELTAP总计包括在入口处形成的至少一个进气压力损失DELTAPintake和在刻度压力损失区域形成的分级压力损失DELTAPgrad。 在入口和出口之间的区域中还设置流量介质的计量加法。 用于纸张和纸板机之一的流浆箱包括运行机器宽度的至少一种材料悬浮液供应器,至少一个湍流发生器具有至少一个材料悬浮液流过的导管,至少一个运动宽度 所述至少一个湍流发生器具有至少一个导管,材料悬浮液通过所述至少一个导管,位于所述导管中的用于引入流体介质的至少一个计量加法点和位于所述至少一个湍流生成器下游的流浆箱喷嘴 用于输送材料悬浮液。 位于计量加法点下游的流动阻力的一部分至少为至少一个导管的总流阻的50%。

    Method and machine for manufacturing a fibrous pulp web
    9.
    发明授权
    Method and machine for manufacturing a fibrous pulp web 失效
    制造纤维纸浆网的方法和机器

    公开(公告)号:US06254728B1

    公开(公告)日:2001-07-03

    申请号:US09012731

    申请日:1998-01-23

    IPC分类号: D21F1100

    摘要: A method and machine for the manufacturing a fibrous pulp web including a first draining zone and a second draining zone, where the first and second draining zones are successively arranged in the web run direction, where a first side of the web is drained in the first draining zone by pressure acting on the web which increases from an initial pressure to a final pressure, where a second side of the web is drained in the second draining zone by pressure acting on the web which increases from an initial pressure to a final pressure in the web run direction, and where the initial pressure in the second draining zone is less than the final pressure in the first draining zone.

    摘要翻译: 一种用于制造纤维纸浆网的方法和机器,所述方法和机器包括第一排水区和第二排水区,其中所述第一排水区和所述第二排水区依次布置在所述幅材运行方向上,其中所述幅材的第一侧在第一排水区 通过作用在幅材上的压力引起的排水区域从初始压力增加到最终压力,其中幅材的第二侧通过作用在幅材上的压力在第二排水区域中排出,该压力从初始压力增加到最终压力 纸幅运行方向,并且其中第二排水区域中的初始压力小于第一排水区域中的最终压力。

    METHOD FOR OPERATING A SHEET-FORMING UNIT, AND SHEET FORMING UNIT
    10.
    发明申请
    METHOD FOR OPERATING A SHEET-FORMING UNIT, AND SHEET FORMING UNIT 失效
    操作成形单元及成形单元的方法

    公开(公告)号:US20120193059A1

    公开(公告)日:2012-08-02

    申请号:US13370697

    申请日:2012-02-10

    IPC分类号: D21F1/00

    摘要: A method for operating a sheet-forming unit of a papermaking machine. At least one fibrous material suspension is fed to a headbox and is conducted in a plurality of turbulence-generating channels to form sub-flows, and fed to a nozzle. From the nozzle, the at least one fibrous material suspension is in the form of a free jet into the forming unit to define an impingement line. In a final fluidization region of an individual turbulence-generating channel a pressure loss (Δp) of ≧50 mbar is generated within the fibrous material suspension before inlet thereof into the nozzle, and the fibrous material suspension is guided from the final fluidization region as far as the impingement line in such a way that the dwell time of the suspension in the region defined by the final fluidization region as far as the impingement line ranges from >30 ms to ≦300 ms.

    摘要翻译: 一种用于操作造纸机的片材形成单元的方法。 将至少一种纤维材料悬浮液供给到流浆箱中,并且在多个产生湍流的通道中传导以形成子流,并且进料到喷嘴。 从喷嘴,至少一个纤维材料悬浮液为形成单元的自由射流的形式,以限定冲击线。 在单个湍流产生通道的最终流化区域内,在纤维材料悬浮液进入喷嘴之前,在纤维材料悬浮液内产生≥50mbar的压力损失(&Dgr; p),并且将纤维材料悬浮液从最终流化区域 直到冲击线,使得悬挂在由最终流化区域限定的区域中的停留时间直到冲击线的范围在> 30ms至< nlE; 300ms之间。