Apparatus for the dewatering of a web of cellulosic matter or a web of
material for the pasteboard or cardboard production
    91.
    发明授权
    Apparatus for the dewatering of a web of cellulosic matter or a web of material for the pasteboard or cardboard production 失效
    用于纸板或纸板生产的纤维素物质纤维网或材料网的脱水设备

    公开(公告)号:US5085737A

    公开(公告)日:1992-02-04

    申请号:US536102

    申请日:1990-06-08

    IPC分类号: D21F3/02 D21F3/04

    摘要: The invention relates to apparatus for the dewatering of a web of cellulosic matter or a web of material for the pasteboard or cardboard production, having endless screen belts or the like circulating in opposite directions between which the web is made to pass for dewatering, the web being made to pass through at least one first dewatering zone with at least two screen belts or the like and thereupon to at least one further dewatering zone, in particular a compresion zone, with at least two screen belts. The invention is mainly characterized in that the web is made to pass at least largely unsupported from at least one dewatering zone serving as a pre-dewatering zone and in particular formed as a double screen belt press to at least one further dewatering zone, in particular to a compression zone in particular formed as a double screen belt press, preferably as a high-pressure press, one or a plurality of heating means, in particular means for applying a heating medium, conveniently one or a plurality of steam-blowing box(es), being provided behind the at least one first dewatering zone serving for pre-dewatering on the web or on the path of the web, in particular above it, one or a plurality of suction site(s), suction box(es) or/and heating means, in particular means for applying a heating medium, conveniently (a) suction box(es), being provided opposite to said steam-blowing box(es) on the other side, in particular underneath, the web or the path of the web, heating means and suction sites conveniently being disposed above and underneath the web opposite to one another and thus forming pairs.

    摘要翻译: 本发明涉及用于糊料板或纸板生产的纤维素物质纤维网或材料纤维网的脱水装置,其具有循环丝网带或类似物,所述丝网带或类似物沿相反方向循环,在该方向上使幅材通过以脱水, 使至少一个具有至少两个筛网带等的至少一个第一脱水区通过至少一个进一步的脱水区,特别是压缩区,至少具有两个筛网带。 本发明的主要特征在于,所述幅材被制造成至少大部分地从至少一个用作预脱水区域的脱水区域未被支撑,并且特别地形成为双筛网带压机至少一个进一步的脱水区域 特别是形成为双筛网带式压榨机的压缩区域,优选为高压压机,一个或多个加热装置,特别是用于施加加热介质的方法,一个或多个蒸汽箱( 设置在所述至少一个第一脱水区域的后面,用于在幅材上或在幅材的路径上,特别是其上方的预脱水,一个或多个抽吸位置,抽吸箱, 特别是用于施加加热介质的装置,特别是用于施加加热介质的装置,方便地(a)抽吸箱,在另一侧,特别是在下方,与所述蒸汽吹出箱相对设置,所述抽吸箱或所述抽吸箱 网路,加热方式和suctio n个位置方便地布置在彼此相对的腹板的上方和下方,从而形成对。

    Method for hot-pressing of a web
    92.
    发明授权
    Method for hot-pressing of a web 失效
    网压热压方法

    公开(公告)号:US4976820A

    公开(公告)日:1990-12-11

    申请号:US187259

    申请日:1988-04-28

    申请人: Jorma Laapotti

    发明人: Jorma Laapotti

    IPC分类号: D21F3/02 D21F3/04

    摘要: Method for pressing and dewatering a paper web, in which a hot-pressing stage is utilized where the wet paper web is pressed in direct contact with a cylinder face that has been heated to a temperature higher than about 100.degree. C. A relatively long pressing time and a relatively low compression pressure are applied in a pre-heating/pre-pressing stage. In this preliminary stage, a surface layer of the cylinder that heats the paper web is heated to a temperature higher than about 100.degree. C. In the immediately following stage, the compression pressure applied to the paper web is lowered so that vaporization of the water present in the paper web is intensified. Next, the web is passed substantially immediately into an intensive nip-pressing stage in which the web is pressed with a peak pressure, preferably higher by one order, so that water vapor is blown through the paper web, thereby causing some of the water present in intermediate spaces between fibers in the web to be blown out, and intensifying dewatering.

    Heated extended nip press with porous roll layers
    93.
    发明授权
    Heated extended nip press with porous roll layers 失效
    加热延长压区与多孔辊层

    公开(公告)号:US4874469A

    公开(公告)日:1989-10-17

    申请号:US89887

    申请日:1987-08-27

    IPC分类号: D21F3/08 D21F1/00 D21F3/02

    CPC分类号: D21F3/0209 D21F3/0281

    摘要: An apparatus and method is disclosed for removing fluid from a fibrous web. The apparatus includes a press member and a blanket which cooperates with the press member for defining therebetween an elongate pressing section such that the web is pressed between the press member and the blanket during passage through the pressing section. An elongate shoe urges the blanket towards the press member such that when the web passes through the pressing section, fluid is removed from the web. A heater is disposed adjacent to the press member for transferring heat to the web such that when the web passes through the press section, the web is subjected for an extended period to increased pressure and temperature so that water vapor generated within the pressing section during passage through the pressing section forces the fluid in the liquid phase away from the web. The press member defines a pressing surface which is porous so that delamination of the web is inhibited.

    Heated drum having high thermal flux and belt press using same
    94.
    发明授权
    Heated drum having high thermal flux and belt press using same 失效
    具有高热通量的加热鼓和使用它的带式压机

    公开(公告)号:US4781795A

    公开(公告)日:1988-11-01

    申请号:US94155

    申请日:1987-09-08

    申请人: Ray R. Miller

    发明人: Ray R. Miller

    摘要: The invention is a fluid heated drum especially well adapted for use with a drum press in which high press roll nip loading and high heat flux to a pressed web are both encountered. A press of this type is disclosed in detail. However, the drum is more broadly useful in any application combining heavy mechanical drum loading and high heat flux through the drum surface. The drum is constructed with a thin outer shell spaced radially apart from an inner cylindrical body. Radial supports provide load bearing connections between the two. The annulus between the shell and inner body may be arranged in various patterns as a conduit for the flow of heating fluid. By using a thin outer shell which does not have to sustain high bending stresses a high rate of heat transfer is permitted. The outer shell may be made of copper or other high thermal flux but lower strength metal to obtain additional heat transfer advantages.

    摘要翻译: 本发明是一种流体加热鼓,特别适用于与滚筒压机一起使用,其中都遇到高压辊压区加载和高压通道到压制纤维网。 详细公开了这种类型的压力机。 然而,滚筒在任何应用中都比较广泛地用于结合重型机械鼓加载和通过滚筒表面的高热通量。 滚筒由一个薄薄的外壳构成,其外径与内筒体径向分开。 径向支撑提供两者之间的承载连接。 外壳和内体之间的环可以以各种图案布置为用于加热流体流动的导管。 通过使用不需要承受高弯曲应力的薄的外壳,允许高的传热速率。 外壳可以由铜或其他高热通量但较低强度的金属制成,以获得额外的传热优点。

    Method and apparatus for drying a moist fibre web
    95.
    发明授权
    Method and apparatus for drying a moist fibre web 失效
    用于干燥湿纤维网的方法和设备

    公开(公告)号:US4691449A

    公开(公告)日:1987-09-08

    申请号:US775054

    申请日:1985-08-16

    申请人: Per-Arne Wiberg

    发明人: Per-Arne Wiberg

    CPC分类号: D21F3/0281 D21F5/004

    摘要: A method for drying a moist fibre web (6), particularly a paper web, in which the moist fibre web, subsequent to having passed a wire (9), a couch roll (10), a pick-up felt (11) and a suction press roll (8), is advanced to a press nip (13) where the fibre web is transferred to a drying cylinder (1) and remains on the cylinder until drying of the web is completed, wherein the fibre web on the drying cylinder is passed to a drying press, where a heated permeable press is pressed against the moist fibre web, whereupon moisture in the fibre web is transferred to the press by the pressure and the heat, the water pressed from the fibre web to the press being subsequently extracted therefrom with the aid of suction boxes (5, 16, 19) arranged on the inside of the press.

    摘要翻译: PCT No.PCT / SE85 / 00009 Sec。 371日期1985年8月16日 102(e)日期1985年8月16日PCT提交1985年1月11日PCT公布。 出版物WO85 / 03314 日本1985年8月1日。一种用于干燥潮湿纤维网(6),特别是纸幅的方法,其中湿纤维网在经过线(9),沙辊(10),接头 (11)和吸力压榨辊(8)前进到压榨压区(13),其中纤维网被转移到干燥筒(1)上并保持在圆筒上,直到纤维网的干燥完成, 其中将干燥筒上的纤维网传递到干燥压榨机,其中加热的可渗透的压榨机被压在湿纤维网上,于是纤维网中的水分通过压力和热量被转移到压力机中, 借助于布置在印刷机内部的抽吸箱(5,16,19),将纤维幅材随后从其中提取。

    Method of dewatering and drying in a Yankee machine
    96.
    发明授权
    Method of dewatering and drying in a Yankee machine 失效
    扬基机器脱水干燥方法

    公开(公告)号:US4139410A

    公开(公告)日:1979-02-13

    申请号:US847590

    申请日:1977-11-01

    CPC分类号: D21F3/0281

    摘要: A Yankee paper machine, particularly for the production of MG (machine glazed) paper and creped tissue, in which the formed paper web is sandwiched between a Yankee felt and a lower felt, pressed in a first nip between a suction roll and a dewatering roll, carried on the Yankee felt around the suction roll and pressed in a second nip between the suction roll and a Yankee cylinder. The web is adhered to the Yankee cylinder and the Yankee felt is detached from the web, passed around separate rolls and returned to the web on the Yankee cylinder in a third nip which in which adherance of the web to the Yankee cylinder is assured.

    摘要翻译: 一种扬克造纸机,特别是用于生产MG(机器釉面)纸和起皱纸巾,其中成形纸幅被夹在扬克毡和下毛毡之间,在抽吸辊和脱水辊之间的第一辊隙中被压制 在扬基上携带,在吸辊周围感觉到,并在吸辊和扬基缸之间的第二辊隙中压紧。 纸幅粘附在扬基圆筒上,扬克纸毡与纸幅分离,通过分开的纸卷,并在第三辊隙中返回到扬基圆筒上的纸幅上,其中纸幅连接到扬基圆筒上。

    Method and apparatus for drying paper on a yankee dryer
    97.
    发明授权
    Method and apparatus for drying paper on a yankee dryer 失效
    干燥机上干燥纸的方法和装置

    公开(公告)号:US3560333A

    公开(公告)日:1971-02-02

    申请号:US3560333D

    申请日:1967-08-15

    申请人: SCOTT PAPER CO

    IPC分类号: D21F3/02 D21F11/00

    CPC分类号: D21F3/0281 Y10S162/07

    摘要: PAPERMAKING APPARATUS IS DISCLOSED WHICH INCLUDES STEAM SUPPLY MEANS ADAPTED TO APPLY STEAM TO THE SURFACE OF A WET PAPER WEB TO BE DRIED IN THE REGION IMMEDIATELY PRECEDING THE POINT WHERE THE PAPER WEB CONTACTS THE SURFACE OF THE YANKEE DRYER. ONE EMBODIMENT OF THE METHOD AND APPARATUS DISCLOSED INVOLVES CONTACTING A WET PAPER WEB WITH STEAM IMMEDIATELY BEFORE IT PASSES INTO THE ON-RUNNING SIDE OF A DRYING NIP FORMED BY A PRESSURE ROLL IN CONTACT WITH THE YANKEE DRYER. EMBODIMENTS OF THE METHOD AND APLPARATUS ARE DISCLOSED IN WHICH THE ABOVE FEATURE IS UTILIZED IN CONJUNCTION WITH SUCTION PRESSURE ROLLS, AND SOLID ROLLS, SUCH AS BLIND DRILLED ROLLS AND GROOVED ROLLS. A FURTHER EMBODIMENT IS DISCLOSED IN WHICH STEAM IS ALSO APPLIED TO THE EXPOSED SURFACE OF A WET PAPER WEB CARRIED ON A YANKEE DRYER BETWEEN TWO SUCCESSIVE PRESSURE ROLLS. ONE DISCLOSED FORM OF THIS EMBODIMENT INVILVES THE USE OF A HOOD BETWEEN THE PAPER WEB AND THE FELT LOOP RUNNING FROM ONE PRESSSURE ROLL, AROUND A GUIDE ROLL AND TO A SUCCESSIVE PRESSURE ROLL. ANOTHER DISCLOSED FORM OF THIS EMBODIMENT INVOLVES ENCLOSING THE ENDS OF THE SPACE DEFINED BY THE FELT LOOP AND THE SURFACE OF THE YANKEE DRYER AND THE INSERTION OF STEAM INTO THAT SPACE TO ELEVATE THE VAPOR PRESSURE INSIDE THE SPACE AT LEAST TO THE VAPOR PRESSURE OF THE WET PAPER WEB CARRIED ON THE YANKEE DRYER AND, PREFERABLY, SUBSTANTIALLY TO ATMOSPHERIC PRESSURE.

    BEND FOR INTRODUCING A STEAM-AND-FIBERS STREAM INTO A DRYER OR A PULP CHEST OF A FIBERS-PROCESSING PLANT, BLOW LINE WITH A BEND, AND FIBERS-PROCESSING PLANT WITH A BLOW LINE
    100.
    发明申请
    BEND FOR INTRODUCING A STEAM-AND-FIBERS STREAM INTO A DRYER OR A PULP CHEST OF A FIBERS-PROCESSING PLANT, BLOW LINE WITH A BEND, AND FIBERS-PROCESSING PLANT WITH A BLOW LINE 审中-公开
    将蒸汽和纤维物流引入干燥器或纤维加工厂的浆料,具有弯曲的吹制线以及具有吹制线的纤维加工设备的弯曲

    公开(公告)号:US20160069021A1

    公开(公告)日:2016-03-10

    申请号:US14403732

    申请日:2012-06-01

    IPC分类号: D21F3/02 B27N1/02 D21F7/06

    摘要: A bend for introducing a steam-and-fibers stream into a dryer or a pulp chest of a fibers-processing plant, a blow line with such a bend, and a fibers-processing plant with such a blow line are provided to reduce the energy consumption in a fiberboard plant or another fibers-processing plant, such as a pulp mill or a board mill. The bend includes an inlet socket for the steam-and-fibers stream, a first outlet socket for emptying into the dryer or the pulp chest, a bent section that connects the inlet socket to the first outlet socket, and a second outlet socket arranged radially inwardly with respect to the first outlet socket. The bent section connects the inlet socket to the second outlet socket.

    摘要翻译: 用于将蒸汽和纤维流引入纤维加工厂的干燥器或纸浆箱,具有这种弯曲的吹塑线以及具有这种吹塑线的纤维加工设备的弯曲被提供以减少能量 在纤维板厂或其他纤维加工厂(例如纸浆厂或板磨机)中的消耗。 所述弯曲部包括用于蒸汽和纤维流的入口插座,用于排空到干燥器或纸浆箱中的第一出口插座,将入口插座连接到第一出口插座的弯曲部分和径向布置的第二出口插口 相对于第一出口插座向内。 弯曲部分将入口插座连接到第二个插座。