公开(公告)号：EP4357519A1

公开(公告)日：2024-04-24

申请号：EP23194484.4

申请日：2023-08-31

申请人： Valmet Technologies Oy

发明人： KETTUNEN, Heikki ,  TOIKKANEN, Jukka ,  MÅNSSON, Carl ,  MATTSSON, Kenneth ,  HEIKKINEN, Jukka T. ,  PITKÄNEN, Tatu ,  BERG, Jonas ,  NORDIN, Andreas ,  KULLGREN, Olle ,  BERG, Anna ,  PIIPONNIEMI, Joni ,  CHRISTOFFERSEN, Caroline

IPC分类号： D21F3/10

CPC分类号： D21F3/10

摘要： The invention relates to a suction roll (30), which comprises a rotatable outer shell (31), which has a plurality of openings (32) arranged spaced apart along the circumference of the outer shell (31), and an inside the rotatable outer shell (31) arranged in axial direction of the suction roll (30) extending stationary suction box (33), which comprises two side walls and a lower wall extending between the side walls, and a setup of seals (34, 35) configured to seal the suction box (33) against inner surface of the rotatable outer shell (31) by the seals (34, 35) of the seal setup, which seals (34, 35) are by lubrication medium lubricated seals and extend in axial direction of the suction roll (30) and are located on the side walls of the suction box (33) at edges of the side walls pointing towards the inner surface of the rotatable outer shell (31) of the suction roll (30). The outer shell (31) of the suction roll (30) is rotatable in both rotation directions (S30) and that the seals (34, 35) are similar and located in the seal setup as mirror images to each other. The invention also relates to a seal setup of a suction roll.