公开(公告)号：WO2004025019A1

公开(公告)日：2004-03-25

申请号：PCT/SE2003/001443

申请日：2003-09-16

Applicant: STFI, SKOGSINDUSTRINS TEKNISKA FORSKNINGSINSTITUT AB ,  SAMUELSSON, Åsa ,  SJÖGREN, Birger ,  VOMHOFF, Hannes ,  SJÖSTRÖM, Lars ,  LUCISANO, Marco ,  LINDSTRÖM, Mikael ,  IVERSEN, Tommy

Inventor： SAMUELSSON, Åsa ,  SJÖGREN, Birger ,  VOMHOFF, Hannes ,  SJÖSTRÖM, Lars ,  LUCISANO, Marco ,  LINDSTRÖM, Mikael ,  IVERSEN, Tommy

IPC: D21C9/02

CPC classification number: D21C9/10 ,  D21C9/007 ,  D21C9/06

Abstract: The present invention relates to a process for replacing intra-fiber liquid in fibers by a replacement liquid, comprising the following steps; compressing the fiber cake to such a degree that a substantial quantity of the intra-fiber liquid is expressed to the space between the fibers and partially out of the fiber cake, forcibly supplying the replacement liquid to the fiber cake during the compression and thus replacing the intra-fiber liquid from the space between the fibers and letting the fibers expand while supplying additional replacement liquid which is thus further absorbed by the expanding fibers. It also relates to an arrangement for replacing intra-fiber liquid in fibers with a replacement liquid comprising a device (1, 4, 5) for compressing the fiber cake in such a degree that a substantial quantity of intra-fiber liquid is expressed to the space between the fibers and partially out of the fiber cake , a first device (6, 8, 9) for forcibly supplying the replacement liquid to the fibers during the compression and a second device (7) for supplying additional replacement liquid immediately after the device for compression arranged in an expansion area where the fibers are allowed to expand after the compression while absorbing replacement liquid. The object of the present invention is to get rid of or significantly reduce the content of contaminating material in not only the areas between the fibers in a fiber cake but also in the fiber wall pores and the lumen and replace this liquid by a replacement liquid.

Abstract translation: 本发明涉及用替换液替代纤维中的纤维内液体的方法，包括以下步骤： 将纤维饼压缩到大量的纤维内液体被表达到纤维之间的空间并且部分地被排出纤维饼的程度，在压缩过程中强制地将更换的液体供给纤维饼， 来自纤维之间的空间的纤维内液体，并使纤维膨胀，同时提供另外的替代液体，由此进一步被膨胀纤维吸收。 还涉及一种用于用包含用于压缩纤维饼的装置（1,4,5）的置换液体来替换纤维中的纤维内液体的布置，使得将大量的纤维内液体表达到 在纤维之间的空间和部分地在纤维饼之间的第一装置（6,8,9），用于在压缩期间强制地将替换液体供应到纤维;以及第二装置（7），用于在装置之后立即提供附加的更换液体 用于压缩布置在膨胀区域中，其中纤维在压缩之后允许膨胀而吸收替换液体。 本发明的目的在于消除或显着降低污染物质的含量，不仅在纤维饼中的纤维之间，而且在纤维壁孔和内腔中的区域中，还可以通过置换液来代替该液体。

公开(公告)号：EP1543192A1

公开(公告)日：2005-06-22

申请号：EP03795542.4

申请日：2003-09-16

Applicant: STFI, Skogsindustrins Tekniska Forskningsinstitut AB

Inventor： SAMUELSSON, Asa ,  SJÖGREN, Birger ,  VOMHOFF, Hannes ,  SJÖSTRÖM, Lars ,  LUCISANO, Marco ,  LINDSTRÖM, Mikael ,  IVERSEN, Tommy

IPC: D21C9/02 ,  D21C9/06 ,  D21C9/10

CPC classification number: D21C9/10 ,  D21C9/007 ,  D21C9/06

Abstract: The present invention relates to a process for replacing intra-fiber liquid in fibers by a replacement liquid, comprising the following steps; compressing the fiber cake to such a degree that a substantial quantity of the intra-fiber liquid is expressed to the space between the fibers and partially out of the fiber cake, forcibly supplying the replacement liquid to the fiber cake during the compression and thus replacing the intra-fiber liquid from the space between the fibers and letting the fibers expand while supplying additional replacement liquid which is thus further absorbed by the expanding fibers. It also relates to an arrangement for replacing intra-fiber liquid in fibers with a replacement liquid comprising a device (1, 4, 5) for compressing the fiber cake in such a degree that a substantial quantity of intra-fiber liquid is expressed to the space between the fibers and partially out of the fiber cake , a first device (6, 8, 9) for forcibly supplying the replacement liquid to the fibers during the compression and a second device (7) for supplying additional replacement liquid immediately after the device for compression arranged in an expansion area where the fibers are allowed to expand after the compression while absorbing replacement liquid. The object of the present invention is to get rid of or significantly reduce the content of contaminating material in not only the areas between the fibers in a fiber cake but also in the fiber wall pores and the lumen and replace this liquid by a replacement liquid.

公开(公告)号：EP0500674A1

公开(公告)日：1992-09-02

申请号：EP90916835.0

申请日：1990-11-06

Applicant: STFI

Inventor： ENGSTRAND, Per ,  HAMMAR, Lars-Ake ,  SJÖGREN, Birger ,  SVENSSON, Börje ,  HTUN, Myat

IPC: D21C3 ,  D21B1 ,  D21C1

CPC classification number: D21C1/00 ,  D21B1/021 ,  D21B1/16

Abstract: On produit de la pâte de cellulose mécanique et chimico-mécanique, notamment de la pâte à papier, à une entrée de faible énergie, par désintégration et trituration de matière ligneuse en une ou en plusieurs étapes. Selon l'invention, on ajoute une substance capable de former des complexes avec des ions métal polyvalents, notamment des ions calcium, appelée agent de transformation en complexe, à la matière ligneuse, avant le procédé de trituration, afin de remplacer lesdits ions calcium ou autre métal singulier polyvalent par des ions sodium, ce qui permet de réduire davantage l'entrée d'énergie.