A FORMING APPARATUS
    1.
    发明申请
    A FORMING APPARATUS 审中-公开
    一个成型装置

    公开(公告)号:WO1992022704A1

    公开(公告)日:1992-12-23

    申请号:PCT/US1992003084

    申请日:1992-04-15

    CPC classification number: D21F9/003

    Abstract: A forming apparatus (10) is disclosed for forming a web (W) from stock (S) having an ash content above 20 percent. The apparatus (10) includes a headbox (12) and a first and a second endless looped forming wire (16, 18) cooperating together to define therebetween a forming section (20) having an upstream and a downstream end (22, 24). A curved shoe (26) cooperates with the second wire (18), so that a first portion of water (28) is removed through the first wire (16). A dewatering device (30) is disposed between the shoe (26) and the downstream end (24) of the forming section (20) with the dewatering device (30) cooperating with the first wire (16). The arrangement is such that a second portion of water (32) is removed from the stock (S) through the second wire (18). A further dewatering shoe (34) is disposed between the dewatering device (30) and the downstream end (24) of the forming section (20). The further shoe (34) cooperates with the second wire (18) and is disposed on the same side of the wires (16, 18) as the shoe (26). The further shoe (34) is connected to a source of partial vaccum (36) such that a third portion of water (38) is removed from the stock (S) through the second wire (18). The arrangement is such that from the upstream to the downstream end (22, 24) of the forming section (20), water is progressively and evenly removed from the stock (S) through both wires (16, 18) so that two-sided ness of the resultant web is minimized while maintaining maximum retention of the ash within the web.

    A FORMING APPARATUS
    2.
    发明授权
    A FORMING APPARATUS 失效
    成形设备

    公开(公告)号:EP0583403B1

    公开(公告)日:1997-08-13

    申请号:EP92912978.1

    申请日:1992-04-15

    CPC classification number: D21F9/003

    Abstract: A forming apparatus (10) is disclosed for forming a web (W) from stock (S) having an ash content above 20 percent. The apparatus (10) includes a headbox (12) and a first and a second endless looped forming wire (16, 18) cooperating together to define therebetween a forming section (20) having an upstream and a downstream end (22, 24). A curved shoe (26) cooperates with the second wire (18), so that a first portion of water (28) is removed through the first wire (16). A dewatering device (30) is disposed between the shoe (26) and the downstream end (24) of the forming section (20) with the dewatering device (30) cooperating with the first wire (16). The arrangement is such that a second portion of water (32) is removed from the stock (S) through the second wire (18). A further dewatering shoe (34) is disposed between the dewatering device (30) and the downstream end (24) of the forming section (20). The further shoe (34) cooperates with the second wire (18) and is disposed on the same side of the wires (16, 18) as the shoe (26). The further shoe (34) is connected to a source of partial vaccum (36) such that a third portion of water (38) is removed from the stock (S) through the second wire (18). The arrangement is such that from the upstream to the downstream end (22, 24) of the forming section (20), water is progressively and evenly removed from the stock (S) through both wires (16, 18) so that two-sided ness of the resultant web is minimized while maintaining maximum retention of the ash within the web.

    Abstract translation: 公开了用于由灰分含量高于20%的原料(S)形成网(W)的成形设备(10)。 该设备(10)包括流浆箱(12)和第一和第二环形成形网(16,18),它们一起配合以在其间限定具有上游端和下游端(22,24)的成形部分(20)。 弯曲的鞋(26)与第二线(18)配合,使得第一部分的水(28)通过第一线(16)被移除。 脱水装置(30)设置在鞋(26)与成形部分(20)的下游端(24)之间,而脱水装置(30)与第一金属丝(16)配合。 该布置使得通过第二金属丝(18)将第二部分水(32)从储备物(S)中移除。 在脱水装置(30)和成形部分(20)的下游端(24)之间设置另一个脱水靴(34)。 另外的鞋(34)与第二线(18)配合并且与鞋(26)布置在线(16,18)的同一侧上。 另外的鞋(34)连接到部分真空源(36),使得第三部分的水(38)通过第二线(18)从储备物(S)移除。 该布置使得从成形部分(20)的上游端(22)到下游端(24),通过两根线(16,18)从容器(S)逐渐且均匀地移除水,使得双侧 所得到的纤网的最小程度减到最小,同时保持纤维网内灰的最大限度的保留。

    PAPERMAKING HEADBOX
    3.
    发明公开
    PAPERMAKING HEADBOX 失效
    HEADBOX纸机

    公开(公告)号:EP1161594A1

    公开(公告)日:2001-12-12

    申请号:EP98902577.0

    申请日:1998-01-16

    CPC classification number: D21F1/022 D21F1/02 D21F1/024 D21F1/026

    Abstract: A papermaking machine has a stock manifold or headbox (10) which is tapered in the machine direction. Paper stock flows through a bank of tubes (18) from the stock manifold (16) to a slice (30) for injecting stock onto a forming wire (12). Each tube (24) in the tube bank (18) extends in a plane which is substantially parallel to the direction of motion of the paper web being formed. The tubes (24) are connected to the interior of the headbox manifold (16) along a stock supply wall (21). A plurality of supply conduits (139, 140, 141) are connected to the supply wall (21) and discharge fines such as chemicals and fillers into the manifold where they are immediately drawn, together with the stock, into adjacent tube ends which feed the stock and added fines to the slice for forming a paper web.

    A FORMING APPARATUS
    4.
    发明公开
    A FORMING APPARATUS 失效
    成形设备

    公开(公告)号:EP0583403A1

    公开(公告)日:1994-02-23

    申请号:EP92912978.0

    申请日:1992-04-15

    IPC: D21F9

    CPC classification number: D21F9/003

    Abstract: On décrit un appareil de formage (10) servant à former une bande continue (W) à partir d'une pâte à papier (S) dont la teneur en cendres est supérieure à 20 %. L'appareil (10) comprend une caisse de tête (2) et un premier et second fils de formage sans fin et bouclés (16, 18) coopérant de manière à délimiter une section de formage (20) présentant une extrémité en amont et une extrémité en aval (22, 24). Un sabot incurvé (26) coopère avec le second fil (18) de sorte qu'une première quantité d'eau (28) est enlevée par l'intermédiaire du premier fil (16). Un dispositif de séchage (30) est placé entre le sabot (26) et l'extrémité en aval (24) de la section de formage (20), le dispositif de séchage (30) coopérant avec le premier fil (16). L'agencement est tel qu'une seconde quantité d'eau (32) est enlevée de la pâte (S) par l'intermédiaire du second fil (18). Un autre sabot de séchage (34) est placé entre le dispositif de séchage (30) et l'extrémité en aval (24) de la section de formage (20). Le second sabot (34) coopère avec le second fil (18) et se trouve du même côté que le premier sabot (26) par rapport aux fils (16, 18). Le deuxième sabot (34) est relié à une source d'aspiration (36) produisant un vide partiel de sorte qu'une troisième quantité d'eau (38) est enlevée de la pâte (S) par le second fil (18). L'agencement est tel que l'eau est progressivement et uniformément enlevée de la pâte (3) à travers les deux fils (16, 18), de l'extrémité en amont (22) de la section de formage (20) vers son extrémité en aval (24), de sorte que l'on diminue les caractéristiques de double face de la bande obtenue tout en permettant à celle-ci de retenir une quantité maximale de cendres.

    Abstract translation: 描述了由灰分含量大于20%的纸浆(S)形成纸幅(W)的成形设备(10)。 该设备(10)包括流浆箱(2)和第一和第二环形成形线(16,18),该成形线协作以限定具有上游端和 下游端(22,24)。 弯曲的鞋(26)与第二线(18)配合,从而通过第一线(16)去除第一数量的水(28)。 干燥装置(30)放置在鞋(26)与成形部分(20)的下游端(24)之间,干燥装置(30)与第一线材(16)配合。 该布置使得通过第二线(18)从面团(S)移除第二数量的水(32)。 另一干燥靴(34)放置在干燥器(30)和成形部分(20)的下游端(24)之间。 第二鞋(34)与第二金属丝(18)配合并且与第一鞋(26)相对于儿子(16,18)在同一侧。 第二鞋(34)连接到产生局部真空的真空源(36),使得通过第二线(18)从面团(S)移除第三量的水(38)。 该布置使得水从成形部分(20)的上游端(22)通过两条线(16,18)逐渐且均匀地从面团(3)去除到其 末端下游(24),从而使所得带材的双面特性减小,同时使其保留最大量的灰分。

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