EP 1116818 B1 20060531 - Device for mixing pulp suspension
Title (en)
Device for mixing pulp suspension
Title (de)
Vorrichtung zum Vermischen von suspendiertem Faserstoff
Title (fr)
Dispositif pour mélanger d'une suspension fibreuse
Publication
Application
Priority
DE 29921879 U 19991213
Abstract (en)
[origin: EP1116818A2] The appts. for mixing fiber suspensions, to give a pulp for papermaking, has a mixing vessel (5) with at least one upstream mixing pipe (6) with feeds (8,9) for the fiber suspensions (1,2). It has an outflow (10) leading to a downstream mixing pump (4). The outflow (10) opens into the feed (11) of diluting material (3) to the mixing pump (4). The mixing pipe (6) has at least one static mixer (7). The mixing vessel (5) has a mechanical stirrer (12), with a drive. The vessel (5) is enclosed and can withstand an overpressure, or the vessel (5) is open. The outflow (10) from the vessel (5) has a pump. The vol. capacity of the mixing vessel (5) is set so that, for a given mixing operation, the dwell time of the suspension is 8-15 secs. The mixing pipe (6) dimensions are set, for a given mixing operation, to give an average suspension flow speed of 1-2 m/sec.
IPC 8 full level
D21F 1/00 (2006.01); B01F 13/10 (2006.01); D21B 1/34 (2006.01); D21D 5/28 (2006.01); B01F 3/12 (2006.01); B01F 5/06 (2006.01); B01F 7/00 (2006.01)
CPC (source: EP)
B01F 23/56 (2022.01); B01F 33/8212 (2022.01); D21B 1/342 (2013.01); D21D 5/28 (2013.01); D21F 1/0018 (2013.01); B01F 25/42 (2022.01); B01F 27/00 (2022.01); B01F 2101/47 (2022.01)
Designated contracting state (EPC)
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR
DOCDB simple family (publication)
EP 1116818 A2 20010718; EP 1116818 A3 20011031; EP 1116818 B1 20060531; AT E328153 T1 20060615; DE 29921879 U1 20000316; DE 50012855 D1 20060706
DOCDB simple family (application)
EP 00126764 A 20001206; AT 00126764 T 20001206; DE 29921879 U 19991213; DE 50012855 T 20001206