公开(公告)号：EP0791686A1

公开(公告)日：1997-08-27

申请号：EP97660014.8

申请日：1997-02-18

申请人： VALMET CORPORATION

发明人： Koskinen, Jukka ,  Nissinen, Vilho

IPC分类号： D21H23/50

CPC分类号： D21H23/50 ,  B05C5/0254

摘要： The invention relates to an assembly for preventing plugging of a narrow, slot-orifice-type jet nozzle 6 used in a paper and board coater in which jet nozzle extends over the entire cross-machine width of the web being coated, said coater comprising an application chamber (11), a coating mix infeed channel (10) connected thereto and a slot orifice (6) as well as at least one infeed port for feeding the coating mix into said application chamber (11). According to the invention, an easily cleanable strainer element (12) is placed close to the applicator apparatus, said strainer serving to separate aggregates of the coating mix that otherwise could plug the slot orifice (6).