EP 3233402 C0 20230802 - PROCESS FOR DISINTEGRATING LIGNOCELLULOSIC MATERIAL IN A DRUM CHIPPER
Title (en)
PROCESS FOR DISINTEGRATING LIGNOCELLULOSIC MATERIAL IN A DRUM CHIPPER
Title (de)
VERFAHREN ZUR DESINTEGRATION VON LIGNOCELLULOSEMATERIAL IN EINEM TROMMELZERSPANER
Title (fr)
PROCÉDÉ DE DÉSINTÉGRATION DE MATÉRIAU LIGNOCELLULOSIQUE DANS UNE DÉCHIQUETEUSE À TAMBOUR
Publication
Application
Priority
- SE 1400599 A 20141217
- SE 2015051317 W 20151209
Abstract (en)
[origin: WO2016099380A1] The present invention relates to a process for disintegrating lignocellulosic material (1) in a drum chipper. The process includes that the lignocellulosic material (1) is introduced to the drum chipper via an input device (2) and that the disintegrated lignocellulosic material is analysed (9) regarding its configuration. The disintegration takes place in a drum chipper comprising a stand carrying a horizontal, rotatable rotor (26), whose periphery has a plurality of knifes (30) and with each knife (30) cooperating radially adjustable wear plates (25) located at some distance from the knife edge, and a space for temporarily collecting the disintegrated lignocellulosic material between each pair of knives (30) and anvil steels. The process is characterized in that at least one process variable is changed during operation in the form of, that a certain cutting angle (ε) is set by regulation of the feeding device (2) position versus the rotor (26) and/or a specific T dimension is adjusted by changing the wear plate's (25) radial distance from the rotor (26) centre and/or that a certain cutting speed, i.e. the knife speed through the lignocellulosic material (1) is adjusted by changing the speed of the rotor (26).
IPC 8 full level
B27L 11/02 (2006.01); B27G 13/00 (2006.01); B27G 13/02 (2006.01); B27L 11/00 (2006.01)
CPC (source: EP SE)
B27G 13/04 (2013.01 - SE); B27L 11/005 (2013.01 - EP SE); B27L 11/02 (2013.01 - EP SE)
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
Participating member state (EPC – UP)
AT BE BG DE DK EE FI FR IT LT LU LV MT NL PT SE SI
DOCDB simple family (publication)
WO 2016099380 A1 20160623; EP 3233402 A1 20171025; EP 3233402 A4 20181024; EP 3233402 B1 20230802; EP 3233402 C0 20230802; SE 1400599 A1 20160618; SE 542730 C2 20200630
DOCDB simple family (application)
SE 2015051317 W 20151209; EP 15870456 A 20151209; SE 1400599 A 20141217