HEADBOX FOR A MACHINE FOR PRODUCING A FIBROUS WEB
    1.
    发明申请
    HEADBOX FOR A MACHINE FOR PRODUCING A FIBROUS WEB 审中-公开
    用于制造纤维网的机器的头架

    公开(公告)号:US20120168105A1

    公开(公告)日:2012-07-05

    申请号:US13350187

    申请日:2012-01-13

    IPC分类号: D21F1/02

    CPC分类号: D21F1/02 D21F1/022 D21F1/024

    摘要: A headbox for a machine for producing a fibrous web, in particular a paper, cardboard or tissue web from at least one fibrous stock suspension, includes a feeding device for feeding the at least one fibrous stock suspension; a perforated distribution pipe plate which is arranged immediately downstream from the feeding device in the flow direction of the at least one fibrous stock suspension and which includes a plurality of flow channels arranged in rows and columns; an intermediate channel which is arranged immediately downstream from the perforated distribution pipe plate in the flow direction of the at least one fibrous stock suspension and which extends in a width direction of the headbox and includes two walls, for example having the width of the machine; a turbulence generator which is arranged immediately downstream of the intermediate channel in the flow direction of the at least one fibrous stock suspension and which has a plurality of flow channels arranged in rows and columns; and a headbox nozzle which is arranged immediately downstream of turbulence generator in the flow direction of the at least one fibrous stock suspension and which has a nozzle gap. Feeding device, perforated distribution pipe plate and intermediate channel are arranged in a first alignment plane, and turbulence generator and headbox nozzle are arranged in a second alignment plane. The two alignment planes form an angle in the range of >90 and

    摘要翻译: 用于从至少一种纤维原料悬浮液生产纤维网,特别是纸,纸板或纸巾纸的机器的流浆箱包括用于供给所述至少一种纤维原料悬浮液的进料装置; 穿孔分布管板,其沿所述至少一个纤维原料悬浮液的流动方向紧邻所述进料装置的下游布置并且包括排成行和列的多个流动通道; 中间通道,其布置在所述穿孔分配管板的所述至少一个纤维原料悬浮液的流动方向的正下方,并且在所述流浆箱的宽度方向上延伸,并且包括两个壁,例如具有所述机器的宽度; 湍流发生器,其布置在所述至少一个纤维原料悬浮液的流动方向的紧邻中间通道的下游,并且具有以行和列排列的多个流动通道; 以及流柱箱喷嘴,其在所述至少一个纤维原料悬浮液的流动方向上紧挨着湍流发生器的下游排列并且具有喷嘴间隙。 进料装置,穿孔分配管板和中间通道布置在第一对准平面中,并且湍流发生器和流浆箱喷嘴布置在第二对准平面中。 两个对准平面在> 90°和<180°的范围内形成一个角度,例如≥100和

    HEADBOX FOR A MACHINE TO PRODUCE A FIBER WEB
    2.
    发明申请
    HEADBOX FOR A MACHINE TO PRODUCE A FIBER WEB 审中-公开
    用于制造纤维网的机器的头架

    公开(公告)号:US20120138251A1

    公开(公告)日:2012-06-07

    申请号:US13314793

    申请日:2011-12-08

    IPC分类号: D21F1/06

    CPC分类号: D21F1/02 D21F1/028

    摘要: Headbox for a machine to produce a fiber web, in particular a paper, cardboard or tissue web from at least one fibrous suspension, having a headbox nozzle comprising an upper nozzle wall and a lower nozzle wall, as well as two side walls tapering to form an outlet, and having an inner chamber through which the fibrous suspension flows in flow direction during operation of headbox, whereby on upper nozzle wall of headbox nozzle a baffle is arranged on the outlet side which is movable by way of several elements and which extends across machine width, and which has a baffle protrusion and a baffle immersion depth and which has at least two surfaces—an upstream ramp surface and a subsequent main surface contacted by a fibrous suspension during operation of headbox. The inventive headbox is characterized in that between ramp surface of baffle and main surface of baffle at least one refraction surface which is in contact during operation of headbox with a fibrous suspension is provided on baffle.

    摘要翻译: 用于机器的流浆箱,用于从至少一个纤维悬浮液产生纤维网,特别是纸,纸板或纸巾纸,其具有包括上喷嘴壁和下喷嘴壁的流浆箱喷嘴,以及渐缩形成的两个侧壁 出口,并且具有内室,纤维悬浮液在流浆箱操作期间沿流动方向流动,由此在流浆箱喷嘴的上喷嘴壁上,挡板布置在出口侧,出口侧可通过若干元件移动并延伸穿过 机器宽度,并且其具有挡板突起和挡板浸入深度,并且具有至少两个表面 - 在流浆箱操作期间由纤维悬浮液接触的上游斜面和随后的主表面。 本发明的流浆箱的特征在于,在挡板的斜面和挡板的主表面之间,在挡板上提供了在具有纤维悬浮液的流浆箱操作期间接触的至少一个折射表面。

    Method for operating a sheet-forming unit, and sheet forming unit
    3.
    发明授权
    Method for operating a sheet-forming unit, and sheet forming unit 失效
    操作片材形成单元和片材形成单元的方法

    公开(公告)号:US08382955B2

    公开(公告)日:2013-02-26

    申请号:US13370697

    申请日:2012-02-10

    IPC分类号: D21F1/18

    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&lt; nlE; 300ms之间。

    HEADBOX FOR A MACHINE FOR PRODUCING A FIBROUS WEB
    4.
    发明申请
    HEADBOX FOR A MACHINE FOR PRODUCING A FIBROUS WEB 失效
    用于制造纤维网的机器的头架

    公开(公告)号:US20110303381A1

    公开(公告)日:2011-12-15

    申请号:US13163271

    申请日:2011-06-17

    IPC分类号: D21F1/18

    CPC分类号: D21F1/02 D21F1/022

    摘要: A headbox includes a feed device for feeding at least one fiber suspension, a perforated distribution pipe plate arranged immediately downstream thereof and having a plurality of channels arranged in lines and columns and an intermediate channel arranged downstream thereof extending over the width of the headbox and having a plurality of apparatuses for dosing a fluid in partial fluid streams to the at least one fiber suspension in an adjustable/controlled manner. The apparatuses are spaced apart from each other in the width direction of the headbox and the individual apparatuses include a plurality of dosing channels having respective dosing channel openings on the outlet side and a dosing channel length, arriving at different levels and being connected to a common supply channel. The headbox further includes a downstream turbulence generator having a plurality of flow channels arranged in lines and columns and a headbox nozzle which is directly contiguous to the turbulence generator and which has a nozzle gap. At least some sections of the channels of the perforated distribution pipe plate have a diffuser and the perforated distribution pipe plate has a length which is ≧0.5·√{square root over (partition)} area the partition area being the surface of the downstream perforated distribution pipe plate divided by the total number of the channels of the perforated distribution pipe plate.

    摘要翻译: 流浆箱包括用于供给至少一种纤维悬浮液的进料装置,在其下游布置的多孔分配管板,并且具有排列成直线和立柱的多个通道,以及布置在流浆箱宽度上的下游的中间通道,并具有 多个装置,用于将部分流体流中的流体以可调节/受控的方式计量至少一个纤维悬浮液。 这些设备在流浆箱的宽度方向上彼此间隔开,并且各个设备包括多个计量通道,其在出口侧具有相应的配量通道开口,并且配量通道长度达到不同水平并连接到共同的 供应渠道。 流浆箱还包括下游湍流发生器,其具有排列成直线和立柱的多个流动通道和与湍流发生器直接邻接且具有喷嘴间隙的流浆箱喷嘴。 穿孔分布管板的通道的至少一些部分具有扩散器,并且穿孔分布管板的长度为≥0.5λ(平方根(分隔))面积,分隔区域是下游穿孔的表面 分配管板除以穿孔分布管板的通道总数。

    HEADBOX FOR A MACHINE FOR PRODUCING A FIBROUS WEB
    5.
    发明申请
    HEADBOX FOR A MACHINE FOR PRODUCING A FIBROUS WEB 失效
    用于制造纤维网的机器的头架

    公开(公告)号:US20110290440A1

    公开(公告)日:2011-12-01

    申请号:US13149093

    申请日:2011-05-31

    IPC分类号: D21F1/02

    CPC分类号: D21F1/02 D21F1/022

    摘要: The invention relates to a headbox for a machine for producing a fibrous web, in particular a paper or cardboard web, from at least one fibrous stock suspension, having a feed apparatus which feeds the at least one fibrous stock suspension, having a distributor-pipe perforated plate which is adjacent downstream and has a multiplicity of channels which are arranged in rows and in columns, having an intermediate channel which lies downstream of the latter, extends over the width of the headbox and has a plurality of means which are spaced apart from one another in the width direction of the headbox for the preferably regulatable/controllable metering of a fluid in fluid part streams into the at least one fibrous stock suspension. The headbox according to the invention is characterized in that the means for the preferably regulatable/controllable metering of the fluid in fluid part streams into the at least one fibrous stock suspension is also configured for the preferably regulatable/controllable metering of at least one further fluid in fluid part streams into the at least one fibrous stock suspension, wherein the individual means comprises in each case a plurality of metering channels for the at least one further fluid, which metering channels have a respective metering-channel opening, open at different heights and are connected to a common supply channel.

    摘要翻译: 本发明涉及一种用于从至少一种纤维原料悬浮液生产纤维网,特别是纸或纸板幅材的机器的流浆箱,其具有供给至少一种纤维原料悬浮液的进料装置,所述进料装置具有分配管 穿孔板,其邻近下游并且具有排列成行和列的多个通道,其具有位于后端的下游的中间通道,其延伸超过流浆箱的宽度,并且具有多个与第一和第 在流浆箱的宽度方向上彼此相隔,用于优选地可调节/可控地计量流入至少一个纤维原料悬浮液的流体部分流体中的流体。 根据本发明的流浆箱的特征在于,用于优选可调节/可控计量流体部分流入至少一种纤维原料悬浮液的装置还被构造用于优选可调节/可控计量至少一种其它流体 流体部分流入所述至少一种纤维原料悬浮液,其中所述单独装置在每种情况下包括用于所述至少一种其它流体的多个计量通道,所述计量通道具有相应的计量通道开口,在不同的高度开放, 连接到公共供应通道。

    Headbox for a machine for producing a fibrous web
    6.
    发明授权
    Headbox for a machine for producing a fibrous web 失效
    用于生产纤维网的机器的流浆箱

    公开(公告)号:US08303774B2

    公开(公告)日:2012-11-06

    申请号:US13163271

    申请日:2011-06-17

    IPC分类号: D21F1/18

    CPC分类号: D21F1/02 D21F1/022

    摘要: A headbox includes a feed device for feeding at least one fiber suspension, a perforated distribution pipe plate arranged immediately downstream thereof and having a plurality of channels arranged in lines and columns and an intermediate channel arranged downstream thereof extending over the width of the headbox and having a plurality of apparatuses for dosing a fluid in partial fluid streams to the at least one fiber suspension in an adjustable/controlled manner. The apparatuses are spaced apart from each other in the width direction of the headbox and the individual apparatuses include a plurality of dosing channels having respective dosing channel openings on the outlet side and a dosing channel length, arriving at different levels and being connected to a common supply channel. The headbox further includes a downstream turbulence generator having a plurality of flow channels arranged in lines and columns and a headbox nozzle which is directly contiguous to the turbulence generator and which has a nozzle gap. At least some sections of the channels of the perforated distribution pipe plate have a diffuser and the perforated distribution pipe plate has a length which is ≧0.5·√{square root over (partition)} area the partition area being the surface of the downstream perforated distribution pipe plate divided by the total number of the channels of the perforated distribution pipe plate.

    摘要翻译: 流浆箱包括用于供给至少一种纤维悬浮液的进料装置,在其下游布置的多孔分配管板,并且具有排列成直线和立柱的多个通道,以及布置在流浆箱宽度上的下游的中间通道,并具有 多个装置,用于将部分流体流中的流体以可调节/受控的方式计量至少一个纤维悬浮液。 这些设备在流浆箱的宽度方向上彼此间隔开,并且各个设备包括多个计量通道,其在出口侧具有相应的配量通道开口,并且配量通道长度达到不同水平并连接到共同的 供应渠道。 流浆箱还包括下游湍流发生器,其具有排列成直线和立柱的多个流动通道和与湍流发生器直接邻接且具有喷嘴间隙的流浆箱喷嘴。 穿孔分布管板的通道的至少一些部分具有扩散器,并且穿孔分布管板的长度为≥0.5λ(平方根(分隔))面积,分隔区域是下游穿孔的表面 分配管板除以穿孔分布管板的通道总数。

    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。

    METHOD FOR OPERATING A SHEET-FORMING UNIT, AND SHEET FORMING UNIT
    8.
    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&lt; nlE; 300ms之间。

    Multi-layer headbox with plastic and metal divider plate
    9.
    发明授权
    Multi-layer headbox with plastic and metal divider plate 失效
    多层流浆箱采用塑料和金属分隔板

    公开(公告)号:US5849159A

    公开(公告)日:1998-12-15

    申请号:US801132

    申请日:1997-02-27

    IPC分类号: D21F1/00 D21F1/02 D21F9/00

    CPC分类号: D21F1/028 D21F1/02 D21F9/006

    摘要: A multi-layer headbox for the production of a multi-layer web of paper has, for instance, three flow planes (I, II, III), each having a pulp feed device (1.1, 1.2, 1.3). In each flow plane a turbulence generator (3) is provided which opens into a nozzle (4). In it there are two plates (5.1, 5.2) which keep two neighboring streams of slurry separate from each other up to the region of the exit slot (8). Each plate is developed as a flexurally soft plate of plastic, the downstream end of which is metal and has a thickness S of at most 0.3 mm. The plastic and metal have a different in coefficients of thermal expansion of

    摘要翻译: 用于生产多层纸网的多层流浆箱具有例如三个流平面(I,II,III),每个具有纸浆进料装置(1.1,1.2,1.3)。 在每个流动平面中,提供通向喷嘴(4)的湍流发生器(3)。 在其中有两个板(5.1,5.2),其保持两个相邻的浆料流彼此分离直到出口槽(8)的区域。 每个板被展开为柔性柔软的塑料板,其下游端是金属并且具有至多0.3mm的厚度S. 塑料和金属具有不同的热膨胀系数<10-71 / K。

    Multilayer headbox
    10.
    发明授权
    Multilayer headbox 失效
    多层流浆箱

    公开(公告)号:US5645689A

    公开(公告)日:1997-07-08

    申请号:US557719

    申请日:1995-11-13

    IPC分类号: D21F1/00 D21F1/02 D21F9/00

    摘要: A multilayer headbox for the introduction of at least two fiber suspension streams to the forming section of a paper manufacturing machine includes a nozzle chamber further defined by two stream guide walls which end at an outlet gap and by two side walls. At least one lamella is provided in the nozzle chamber, this lamella keeping at least two fiber suspension streams separated from each other through the region of the outlet gap. The lamella includes a body, preferably made of plastic, and a tip made of a hard material. The tip is either a strip or a coating having a sharp tip-edge integrated into the body of the lamella.

    摘要翻译: 用于将至少两个纤维悬浮液流引入造纸机的成形部分的多层流浆箱包括一个喷嘴室,该喷嘴室由两个在导出间隙处延伸的两个流引导壁和两个侧壁限定。 在喷嘴室中设置至少一个薄板,该薄板保持至少两个纤维悬浮液流彼此分离通过出口间隙的区域。 薄片包括优选由塑料制成的主体和由硬质材料制成的尖端。 尖端是条带或具有集成到薄片的主体中的尖锐尖端的涂层。