EP 4217536 A1 20230802 - REFINER PLATE SEGMENT
Title (en)
REFINER PLATE SEGMENT
Title (de)
MAHLGARNITURSEGMENT
Title (fr)
SEGMENT DE GARNITURE DE RAFFINAGE
Publication
Application
Priority
- DE 102020124891 A 20200924
- EP 2021075270 W 20210915
Abstract (en)
[origin: WO2022063643A1] The invention relates to a plate segment (2) for refining aqueously suspended fibrous material (1) in a refining gap (3) delimited by two treatment surfaces which rotate relative to one another and are formed by plate segments (2). The plate segment consists of a main body (4) having elongate treatment elements (5) facing the refining gap (3) and grooves (6) running between the treatment elements, wherein a plurality of channels (8) are arranged in the base body (4). In order to improve the efficiency and service life of the plate segments, the channels (8) are closed at least at one end and/or filled with a porous or abrasion-sensitive material to at least some extent.
IPC 8 full level
D21D 1/30 (2006.01)
CPC (source: EP)
D21D 1/306 (2013.01)
Citation (search report)
See references of WO 2022063643A1
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
Designated validation state (EPC)
KH MA MD TN
DOCDB simple family (publication)
DE 102021123802 A1 20220324; EP 4217536 A1 20230802; WO 2022063643 A1 20220331
DOCDB simple family (application)
DE 102021123802 A 20210915; EP 2021075270 W 20210915; EP 21777713 A 20210915