Arrangement in tissue machine
    13.
    发明授权
    Arrangement in tissue machine 失效
    纸巾机的布置

    公开(公告)号:US06200425B1

    公开(公告)日:2001-03-13

    申请号:US09303619

    申请日:1999-04-20

    申请人: Kari Pellinen

    发明人: Kari Pellinen

    IPC分类号: D21F1100

    摘要: In a tissue machine, a roll is arranged to press a paper web against a Yankee cylinder. A steam box is arranged in connection with the roll. A steaming area of the steam box is arranged against the paper web substantially above the horizontal center line of the roll.

    摘要翻译: 在纸巾机器中,布置辊将纸幅压靠扬基滚筒。 一个蒸汽箱与卷筒相连配置。 蒸汽箱的蒸汽区域基本上在辊的水平中心线上方布置在纸幅上。

    Method for drying a surface-treated paper web in an after-dryer of a
paper machine and after-dryer of a paper machine
    14.
    发明授权
    Method for drying a surface-treated paper web in an after-dryer of a paper machine and after-dryer of a paper machine 失效
    在造纸机的后烘干机和造纸机的后烘干机中干燥表面处理过的纸幅的方法

    公开(公告)号:US5968590A

    公开(公告)日:1999-10-19

    申请号:US932889

    申请日:1997-09-17

    IPC分类号: D21F5/04 D21G9/00 D21F5/00

    摘要: An after-dryer and method for drying a surface-treated paper web in an after-dryer of a paper machine in which the web is first finished in a finishing section, i.e., surface-sized or coated, by a finishing device and then dried. In the after-dryer, the paper web is dried in at least one dryer group that makes use of single-wire draw and at the same time, the paper web is dried by an impingement-drying equipment arranged in connection with at least one cylinder or roll in the single-wire dryer group.

    摘要翻译: 干燥机和干燥后的造纸机的后处理纸的表面处理纸幅的方法,其中纸幅首先在整理部分中精加工,即由表面尺寸或涂布的精整装置,然后干燥 。 在后处理机中,纸幅在至少一个使用单线拉丝的干燥器组中干燥,同时,纸幅通过与至少一个圆柱体相连的冲击干燥设备干燥 或在单线干燥器组中滚动。

    Enhancing cross-directional stretch and tensile energy absorption during
paper manufacture
    15.
    发明授权
    Enhancing cross-directional stretch and tensile energy absorption during paper manufacture 失效
    在纸张制造过程中增强横向拉伸和拉伸能量吸收

    公开(公告)号:US5694702A

    公开(公告)日:1997-12-09

    申请号:US779322

    申请日:1997-01-06

    IPC分类号: D21F5/04 F26B3/00

    CPC分类号: D21F5/048

    摘要: An unrestrained drying capability is added to an existing series of rotating drying cylinders in a cost- and space-efficient manner to enhance cross-directional (CD) stretch and tensile energy absorption (TEA) in a paper web such as for sack kraft grade paper. High-intensity air glide drying devices are adapted for use in a variety of configurations to provide different levels of unrestrained drying capacity for a pre-existing series of rotating drying rollers. The air glide drying devices carry the paper web on a cushion of air which is heated preferably to 500.degree.-850.degree. F. The sheet moisture content of the paper web during heating in the unrestrained drying section decreases by at least approximately 5%, with an evaporation rate of approximately 15-30 lbm/hr/ft.sup.2. A preferred temperature range of the paper web upon entry to the air glide drying device is 160.degree.-210.degree. F. A pre-heater such as a convection or infrared heater may optionally be employed. A variety of configurations are disclosed to allow a gradual increase in the unrestrained drying capability without requiring extensive retrofitting of existing equipment.

    摘要翻译: 以成本和空间有效的方式将无限制的干燥能力添加到现有系列的旋转干燥筒中,以增强纸幅中的横向(CD)拉伸和拉伸能量吸收(TEA),例如用于袋式硫酸盐纸 。 高强度气流干燥装置适用于各种配置,以便为预先存在的一系列旋转干燥辊提供不受限制的无限干燥能力。 空气流动干燥装置将纸幅装载在优选加热至500°-850°F的空气缓冲垫上。在无限制干燥部分中加热期间纸幅的片材水分含量减少至少约5%,其中 蒸发速率约为15-30磅/小时/平方英尺。 纸幅在进入空气流动干燥装置时的优选温度范围为160°-210°F。可以任选地使用诸如对流或红外加热器的预热器。 公开了各种配置以允许逐渐增加无限制的干燥能力,而不需要对现有设备进行大量改造。

    Methods for drying a paper web
    16.
    发明授权
    Methods for drying a paper web 失效
    干燥纸幅的方法

    公开(公告)号:US5630285A

    公开(公告)日:1997-05-20

    申请号:US593609

    申请日:1996-01-30

    摘要: A method and device for drying a paper web in a dryer section having a number of successive dryer groups with a single-wire draw, and being situated after a press section of the paper machine. Each dryer group includes contact-drying cylinders arranged in a first row and reversing suction cylinders or equivalent suction rolls arranged in a second row, the rows being horizontal, diagonal or vertical rows. The paper web is dried by contact-drying cylinders from the side of its lower face across the entire length of the dryer section. The paper web is passed as a closed draw from one dryer group to the next group, and the paper web is guided, while it runs on the drying wire at the side of the outside curve, by the reversing suction cylinders having a curve radius selected in a range from about 250 mm to about 1000 mm. The paper web is kept in constant contact with the drying wire as it is placed at the side of the outside curve, against the effect of centrifugal forces by a pressure difference which preferably extends over the entire inner circumference of the reversing suction cylinders. In addition to the above, or as an alternative, the paper web is dried from the side of its upper face on a draw or draws of the paper web that is/are free from the wire and/or a flow of drying air is applied to the upper face of the paper web through the drying wire and/or on the draws of the paper web that are free from the wire.

    摘要翻译: 一种用于在具有多个连续干燥器组的干燥器部分中干燥纸幅的方法和装置,其具有单线牵引,并且位于造纸机的压榨部分之后。 每个干燥器组包括布置在第一排中的接触干燥筒和布置在第二排中的反向吸入缸或等效的吸入辊,所述行是水平的,对角线或垂直排。 纸幅通过接触干燥筒从其下表面的整个干燥部的整个长度干燥。 纸幅作为封闭的抽出通过一个干燥器组到下一个组,并且纸幅被引导,而其在外部曲线侧的干燥丝上运行,具有选择的曲线半径的反向抽吸圆筒 在约250mm至约1000mm的范围内。 当干燥线被放置在外部曲线的侧面时,纸幅与离心力的作用保持恒定的接触,该压力差优选地在反向吸入气缸的整个内周上延伸。 除了上述之外,或作为替代方案,纸幅从其上表面的一侧在绘图上进行干燥或者纸幅从纸上脱落和/或施加干燥空气流 通过干燥线和/或纸幅的不含导线的纸幅的纸幅的上表面。

    Method and apparatus for the levelling of the humidity profile of a
continuous web by dielectric drying
    17.
    发明授权
    Method and apparatus for the levelling of the humidity profile of a continuous web by dielectric drying 失效
    通过介电干燥使连续纤维网的湿度分布调平的方法和装置

    公开(公告)号:US4823477A

    公开(公告)日:1989-04-25

    申请号:US133127

    申请日:1987-08-12

    申请人: Mauri Soininen

    发明人: Mauri Soininen

    CPC分类号: D21F5/165 D21F5/048 D21F7/003

    摘要: A method and an apparatus for reducing moisture differentials of a moving web, for instance, a paper web, containing longitudinal wet streaks, by applying high-frequency electromagnetic energy to bar-formed electrodes, which are located close to the surface of the web. In accordance with the invention, the longitudinal axes of the electrodes are aligned approximately parallel to the machine direction of the web and the electrodes are located over each wet streak of the web. The apparatus in accordance with the invention comprises a beam extending in the cross direction essentially over the web, with each electrode fitted to the beam so as to align the longitudinal axis of the electrode in the home position approximately parallel to the machine direction of the web and provided with a means of transferring each electrode in the aforementioned cross direction onto an assigned wet streak in the web. The invention provides an economical and effective solution for reducing moisture differentials in the web.

    摘要翻译: PCT No.PCT / FI86 / 00148 Sec。 371日期1987年8月12日 102(e)日期1987年8月12日PCT提交1986年12月12日PCT公布。 出版物WO87 / 03632 日期:1987年6月18日。一种用于通过将高频电磁能施加到位于接近的条形电极的移动幅材(例如,包含纵向湿条纹)的纸幅的减少水分差异的方法和装置 到网的表面。 根据本发明,电极的纵向轴线大致平行于幅材的机器方向排列,并且电极位于幅材的每个湿条纹上。 根据本发明的装置包括沿着横向方向基本上在幅材上延伸的梁,每个电极装配到梁上,以使电极的纵向轴线大致平行于幅材的机器方向 并且设置有将上述横向上的每个电极转移到幅材上的分配湿条纹的装置。 本发明提供了一种经济有效的解决方案,用于减少纤维网中的水分差异。

    Drying apparatus
    19.
    发明授权
    Drying apparatus 失效
    干燥装置

    公开(公告)号:US4103434A

    公开(公告)日:1978-08-01

    申请号:US700568

    申请日:1976-06-28

    摘要: A drying apparatus suitable for use in the drying of paper web and which comprises a housing, rollers located within the housing for supporting the paper web which is transported through the housing, and means for applying heat to the rollers. The heat is applied directly to the rollers' periphery and at such a level as to cause vaporization of moisture contained within the web, whereby a vapor layer is created between the web and the portion of the rollers' periphery which would otherwise be contacted at any given time by the web.

    摘要翻译: 一种适用于干燥纸幅的干燥设备,其包括壳体,位于壳体内的辊,用于支撑通过壳体输送的纸幅,以及用于向辊施加热量的装置。 热量被直接施加到辊的周边并且在使得纤维网中包含的水分蒸发的水平上,由此在幅材和辊周边的部分之间产生蒸汽层,否则将在任何情况下接触 给网络时间。