公开(公告)号：US20180369724A1

公开(公告)日：2018-12-27

申请号：US16019251

申请日：2018-06-26

Applicant: Valmet Technologies Oy

Inventor： Rolf Oswaldson ,  Kent Strid

IPC: B01D33/21 ,  B01D33/46 ,  D21D5/06

Abstract: A vat (1) with an inlet (2) for a suspension. A rotatable inner axial part (5) with peripheral channels (7) and at least one disc-shaped filter (8) mounted to the inner axial part (5). Within the vat the suspension is contained between partition walls (16A) in which the filters rotate. The filter (8) has inner flow channels (42) for transporting filtrate to channels (7) in the inner axial part (5). The filtrate from the channels (7) is combined in one end of the inner axial part (5) into at least one vacuum forming downpipe (12). Sprays (13) (15) detach material deposited on the filters. Mounted to the top of the partition walls (16A), which form receiving chutes (16), are guide plates (14A) for guiding material down into the chutes. Spray nozzles (14B) are located below the guide plate(s) and between the partition walls (16A) to clean the filtering surface (10).