Method and apparatus for improving the drying capacity of a hood
covering a yankee cylinder
    1.
    发明授权
    Method and apparatus for improving the drying capacity of a hood covering a yankee cylinder 有权
    一种用于提高覆盖扬子缸的罩的干燥能力的方法和装置

    公开(公告)号:US6154981A

    公开(公告)日:2000-12-05

    申请号:US300787

    申请日:1999-04-28

    CPC分类号: D21F5/044

    摘要: A method and an apparatus for improving the drying capacity of a hood covering a Yankee cylinder (10), when drying a web with a Yankee cylinder while conveying the web over the cylinder by blowing hot air jets against the web at the region of a first hood (12), said hot air jets having a temperature mainly 550.degree. C.

    摘要翻译: 一种用于提高覆盖扬基气缸(10)的罩的干燥能力的方法和装置,当用杨克缸筒干燥纤维网时,同时通过在第一 罩(12),所述热空气喷射器的温度主要<550℃。通过在第二罩的区域上吹送热空气喷射流动在气缸上传送的卷材上,干燥罩的干燥能力增加,所谓的 热空气罩(14,14',14“),所述热空气射流的温度高于在第一罩处吹向腹板的热空气喷射的温度,或者主要> 550℃。

    Method in contact-free air-drying of a material web as well as a
nozzle-blow-box and a pulp dryer that make use of the method
    3.
    发明授权
    Method in contact-free air-drying of a material web as well as a nozzle-blow-box and a pulp dryer that make use of the method 失效
    材料网的无接触空气干燥的方法以及使用该方法的喷嘴吹风箱和纸浆干燥器

    公开(公告)号:US5471766A

    公开(公告)日:1995-12-05

    申请号:US334210

    申请日:1994-11-04

    IPC分类号: F26B13/20 F26B13/00 F26B3/00

    CPC分类号: F26B13/104

    摘要: The invention relates to a method for air-drying material webs, in particular material webs of relatively high grammage such as pulp webs. The invention also relates to a nozzle-blow-box and a pulp dryer that make use of the method. Air blowings in a direction substantially perpendicular to the web and air blowings in a direction substantially parallel to the plane of the web are applied to the web to be dried from underneath the web. By means of these blowings, both heat is transferred to the web and the web is supported by the air free of contact, and the run of the web through the dryer is stabilized. In order to improve the transfer of heat in comparison with a planar carrier face, the air flow velocity parallel to the plane of the web is initially kept substantially invariable. The air flow velocity is lowered in the lateral areas of the carrier face by employing lateral areas of the nozzle-carrier face that become rampwise and/or stepwise lower in the air-flow direction.

    摘要翻译: 本发明涉及一种用于空气干燥材料幅材的方法,特别是具有较高克重的材料幅材如纸浆幅材。 本发明还涉及利用该方法的喷嘴吹风箱和纸浆干燥器。 在基本上垂直于纸幅的方向上的空气吹塑和在基本上平行于幅材的平面的方向上的空气吹送从幅材下面施加到待干燥的幅材上。 通过这些吹塑,两个热量被转移到幅材上,并且纤维网被空气不受接触支撑,并且通过干燥器的纤维网的运行是稳定的。 与平面载体面相比,为了改善热传递,初始保持平行于幅材平面的气流速度基本上不变。 通过使喷嘴载体面的横向区域在空气流动方向上变成斜坡和/或逐步降低,使得气流速度在载体面的横向区域中降低。

    Arrangement and method for treatment of webs using nozzles with negative
pressure
    4.
    发明授权
    Arrangement and method for treatment of webs using nozzles with negative pressure 失效
    使用具有负压的喷嘴处理网的布置和方法

    公开(公告)号:US5299364A

    公开(公告)日:1994-04-05

    申请号:US938952

    申请日:1992-09-01

    摘要: The invention relates to an arrangement of nozzles with negative pressure intended for the treatment of webs. A nozzle directs a drying and supporting gas flow at the web and which has a box construction, and a nozzle space formed at one side of the nozzle. The nozzle space is provided with a nozzle slot defined by nozzle walls. One of the walls operates as a curved guide face which is fitted to turn the gas flow passed out of the nozzle slot, based on the Coanda effect, so as to make it parallel to the carrier face formed on the top face of the nozzle. At least one second nozzle slot is provided at a distance before said first nozzle slot, in the running direction of the web. A flow guiding fitted in connection with the second nozzle slot is arranged so that the flow has a substantially large velocity component perpendicular to the direction of running of the web. The velocity component parallel to the plane of running of the web of the flow passed out of the second nozzle slot is larger than zero.

    摘要翻译: 本发明涉及一种用于处理腹板的具有负压的喷嘴的布置。 喷嘴引导干燥和支撑气流在腹板处并具有盒结构,以及形成在喷嘴一侧的喷嘴空间。 喷嘴空间设有由喷嘴壁限定的喷嘴槽。 其中一个壁作为弯曲的引导面进行操作,该弯曲引导面基于柯恩达效应而被安装成转过从喷嘴槽流出的气流,以使其平行于形成在喷嘴顶面上的载体面。 至少一个第二喷嘴槽在所述第一喷嘴槽之间的距离处沿着所述幅材的运行方向设置。 布置成与第二喷嘴槽连接的流动引导件被布置成使得该流动具有垂直于卷材运行方向的基本上大的速度分量。 平行于从第二喷嘴槽流出的流动幅材运行平面的速度分量大于零。

    Flotation dryer unit and method of use
    5.
    发明授权
    Flotation dryer unit and method of use 失效
    浮选机组及其使用方法

    公开(公告)号:US06289607B1

    公开(公告)日:2001-09-18

    申请号:US09424654

    申请日:1999-11-26

    IPC分类号: F26B300

    CPC分类号: D21F5/188 F26B13/104

    摘要: A method and flotation dryer unit effects drying of a web such as a coated paper web. The flotation dryer unit advantageously includes several nozzle boxes extending across the web for feeding drying air toward the web to be dried, a distribution chamber for drying air for leading the dry air into the nozzle boxes, and a suction chamber for gathering the drying air led toward the web from the web area and for directing it to the side of the web. The suction chamber is divided into an equalizing space and an air transport chamber by a perforated plate for equalizing the return air flow occurring from the web area.

    摘要翻译: 一种方法和浮选干燥器单元实现诸如涂布纸幅之类的幅材的干燥。 浮选式干燥机单元有利地包括若干喷嘴箱,其横过纸幅延伸,用于将干燥空气送入待干燥的纸幅;干燥空气的分配室,用于将干燥空气引入喷嘴箱;吸入室,用于收集干燥空气 从网页区域朝向网络并将其引导到网页的一侧。 吸入室通过多孔板被分成均衡空间和空气输送室,用于均衡从腹板区域发生的返回气流。

    Method and device for drying a coating on a paper web or equivalent
    6.
    发明授权
    Method and device for drying a coating on a paper web or equivalent 失效
    用于干燥纸幅或等同物上的涂层的方法和装置

    公开(公告)号:US5771602A

    公开(公告)日:1998-06-30

    申请号:US735691

    申请日:1996-10-23

    摘要: A method and device for drying a coating on a paper web or equivalent in which the direction of running of the paper web is turned, free of contact, by blowings produced by a turning device and the coating on the paper web is dried free of contact by blowings of drying devices placed at both sides of the paper web. The direction of running of the paper web is turned by drying blowings. The exhaust air of the turning device and drying device, which is placed at the side of the turning device, is removed from direct vicinity of the paper web or equivalent by a common exhaust device. The turning device and drying device are placed under and within a common box construction so that access of the exhaust air into the surrounding space is prevented. The device includes a turning device for turning the running direction of the paper web free of contact and a drying device for contact-free drying of the coating on the paper web. The turning device and drying device have nozzles for producing blowings and an exhaust-air device for removing the exhaust air from the vicinity of the paper web or equivalent. The device is arranged to produce drying blowings at the turning device. The turning device and the drying device have common exhaust-air members.

    摘要翻译: 用于干燥纸幅或其等同物上的涂层的方法和装置,其中纸幅的运行方向与转动装置产生的吹塑和纸幅上的涂层无接触地转动而无接触地干燥,无接触 通过放置在纸幅两侧的干燥装置的吹塑。 纸幅的运行方向通过干燥吹塑来转动。 设置在转向装置一侧的车削装置和干燥装置的废气通过普通的排气装置从纸幅的直接附近或相当的位置移除。 转向装置和干燥装置放置在公共箱体结构内部和内部,从而防止废气进入周围空间。 该装置包括用于使没有接触的纸幅的运行方向转动的转动装置和用于纸幅上的涂层的无接触干燥的干燥装置。 车削装置和干燥装置具有用于产生吹气的喷嘴和用于从纸幅附近去除废气的排气装置或等同物。 该装置被布置成在车削装置处产生干燥吹塑。 车削装置和干燥装置具有共同的排气构件。

    Method and apparatus for drying webs
    7.
    发明授权
    Method and apparatus for drying webs 失效
    干燥WEBS的方法和装置

    公开(公告)号:US5163236A

    公开(公告)日:1992-11-17

    申请号:US496411

    申请日:1990-03-20

    申请人: Pertti Heikkila

    发明人: Pertti Heikkila

    CPC分类号: F26B13/16 D21F5/042 D21H25/06

    摘要: A method for use in web drying apparatus, such as a drying section of a coating or paper machine which includes drying cylinders against the outer mantles of which a web to be dried is pressed in direct contact, and wherein the web is carried from one drying cylinder to the next supported on a wire which passes from a drying cylinder over an intermediate leading cyclinder where the web is carried on the outer side of the wire out of direct contact with an outer mantle of the leading cylinder, and then to the next drying cylinder, comprises the steps of maintaining a negative pressure in a pocket space defined between a pair of successive drying cylinders and the web-supporting wire for suctioning the web into contact with the wire as it runs from one drying cylinder to the intermediate leading cylinder and from the intermediate leading cylinder to the next drying cylinder, and providing the leading cylinder with a perforated outer mantle and maintaining a negative pressure within the interior of the outer mantle, to thereby render it a suction cylinder for suctioning the web into contact with the wire as the wire travels over the suction cylinder. Apparatus for use in the method includes a pocket chamber for enclosing the pocket and apparatus for maintaining negative pressures in the enclosed pocket space and interior of the leading cylinder.

    摘要翻译: 一种在卷筒纸干燥装置中使用的方法,例如涂布机或造纸机的干燥部分,其包括将干燥筒抵靠外壁直接接触地压制干燥的幅材,并且其中所述幅材从一个干燥 气缸到下一个支撑在电线上的电线,该电线从干燥筒通过中间引导环形器,其中网被承载在电线的外侧,与引导圆筒的外罩直接接触,然后到下一个干燥 包括以下步骤:在一对连续的干燥筒之间保留一个负压,并且当卷筒从一个干燥滚筒运行到中间的前导滚筒时,卷筒纸支撑丝线用于吸引卷材与丝接触; 从中间导向圆筒到下一个干燥圆筒,并为引导圆筒提供穿孔的外套,并在i内保持负压 从而使其成为吸引气缸,当吸管沿着吸气筒行进时,该气缸用于将纤维网与线接触。 用于该方法的装置包括用于封闭袋的袋室和用于在封闭的袋空间和引导筒的内部保持负压的装置。

    Combination infrared and airborne drying of a web
    8.
    发明授权
    Combination infrared and airborne drying of a web 失效
    组合红外和空气干燥的网

    公开(公告)号:US4936025A

    公开(公告)日:1990-06-26

    申请号:US343049

    申请日:1989-04-25

    申请人: Pertti Heikkila

    发明人: Pertti Heikkila

    摘要: Method and device in a drying of a moving web, in which the web is passed while being supported free of contact through various drying gaps in which the web is dried by infrared radiation and air blowing. The web is passed into an infrared treatment gap in which infrared radiation is applied to the same, preferably from gas-operated infrared-radiation elements. Cooling air of the infrared unit is blown into the treatment gap and towards the web. After the infrared treatment gap, the web is immediately passed into an air drying gap within which the web is dried by way of air blowings which, at the same time, support the web free of contact. The cooling air and possibly combustion gases from the infrared unit are passed through a web inlet opening of the airborne web dryer unit into an interior of the box of the airborne unit to constitute part of its circulating air. The cooling air required by the infrared unit is passed into the infrared unit out of a pressure compartment of the airborne unit.

    摘要翻译: 移动纤维网的干燥方法和装置,其中纤维网在通过各种干燥间隙被支撑而不受接触的情况下通过,其中纤维网通过红外辐射和空气吹送干燥。 纤维网被传送到红外线处理间隙中,其中红外线辐射被施加到红外线处理间隙,优选地从气体操作的红外辐射元件施加。 红外线单元的冷却空气被吹入处理间隙并朝向网。 在红外线处理间隙之后,纤维网立即进入空气干燥间隙,在该空气干燥间隙中,幅材通过空气吹送而干燥,同时支撑幅材不受接触。 来自红外线单元的冷却空气和可能的燃烧气体通过空中卷筒纸干燥器单元的卷筒纸入口开口进入机载单元的盒子的内部,以构成其循环空气的一部分。 红外线单元所需的冷却空气从机载单元的压力室传入红外单元。

    Method, arrangement and equipment for tensioning and guiding a fabric in a paper or board machine
    10.
    发明申请
    Method, arrangement and equipment for tensioning and guiding a fabric in a paper or board machine 失效
    在纸张或纸板机上张紧和引导织物的方法,布置和设备

    公开(公告)号:US20060249271A1

    公开(公告)日:2006-11-09

    申请号:US10555525

    申请日:2004-05-04

    IPC分类号: D21F1/36

    CPC分类号: D21F7/005

    摘要: A paper or board machine has a fabric (10) that is adapted mobile as well as rolls (11, 11′) arranged to support the fabric (10). The fabric (10) is tensioned by changing the position of one roll (11′) of the rolls (11, 11′). Correspondingly, the fabric (10) is guided by changing the alignment of one roll (11′) of the said rolls (11, 11′). Surprisingly the fabric (10) is both tensioned and guided by changing the alignment and position of only one and the same roll (11′). In addition, the wrap angle of the fabric (10) at this roll (11′) is set higher than 30°.

    摘要翻译: 纸或纸板机具有适于移动的织物(10)以及布置成支撑织物(10)的辊(11,11')。 织物(10)通过改变辊(11,11')的一个辊(11')的位置来张紧。 相应地,织物(10)通过改变所述辊(11,11')的一个辊(11')的对准来引导。 令人惊奇的是,织物(10)通过改变仅一个和相同卷(11')的对准和位置而被张紧和引导。 此外,织物(10)在该卷(11')处的包角被设定为高于30°。