公开(公告)号：EP3690135A1

公开(公告)日：2020-08-05

申请号：EP19214330.3

申请日：2019-12-09

申请人： Valmet Technologies Oy

发明人： AHO, Tuomo ,  HEIKKILÄ, Jarno

IPC分类号： D21D5/02

摘要： The invention relates to a screening device for screening pulp suspensions and/or for stock preparation, which screening device (10) comprises a screening cylinder (12) and an inside the screening cylinder (12) located rotor (13) with foils (14) connected to the rotor (13) by foil arms (17), which screening device (10) comprises an inlet fitting (20) and a feed chamber (11) above of the screening cylinder (12) into which inlet flow of the pulp suspension is guided through the inlet fitting (20), which screening device (10) comprises a housing (25), which housing (25) has an inlet opening (28) for the inlet fitting (20). The screening device (10) comprises a flow guide (29, 30) extending from the inlet opening (28) in the housing (25) of the screening device (10) a distance inside the screening device (10) and that the flow guide (29, 30) inside the feed chamber (11) of the screening device (10) guides the inlet flow into the feed chamber of the screening device (10) and prevents the incoming inlet flow to meet the inlet flow already in the feed chamber (11) of the screening device (10).