EP 0874936 A1 19981104 - METHOD AND PLANT FOR TREATING A CONTAMINATED PULP SUSPENSION
Title (en)
METHOD AND PLANT FOR TREATING A CONTAMINATED PULP SUSPENSION
Title (de)
VERFAHREN UND VORRICHTUNG ZUR BEHANDLUNG VON EINER VERUNREINIGTEN FASERSTOFFSUSPENSION
Title (fr)
PROCEDE DE TRAITEMENT DE PATE CONTAMINEE EN SUSPENSION ET INSTALLATIONS CORRESPONDANTES
Publication
Application
Priority
- SE 9701437 W 19970828
- SE 9603346 A 19960916
Abstract (en)
[origin: WO9811296A1] With the aid of hydrocyclones, relatively light and heavy contaminants are separated from a pulp suspension. According to the invention, at first light contaminants are separated from the pulp suspension and the fibre concentration of the pulp suspension is substantially increased by means of a first multihydrocyclone unit (6) comprising a multiplicity of parallelly coupled hydrocyclones designed for separating light contaminants, and thereafter heavy contaminants are separated from the pulp suspension with the increased fibre concentration by a second multihydrocyclone unit (13) comprising a multiplicity of parallelly coupled hydrocyclones designed for separating heavy contaminants.
IPC 1-7
IPC 8 full level
CPC (source: EP)
D21D 5/24 (2013.01)
Citation (search report)
See references of WO 9811296A1
Designated contracting state (EPC)
AT DE ES FI FR GB GR IT
DOCDB simple family (publication)
WO 9811296 A1 19980319; BR 9706750 A 19990720; CA 2233193 A1 19980319; EP 0874936 A1 19981104; ID 18266 A 19980319; JP 2000500831 A 20000125; KR 19990067425 A 19990816; NO 982224 D0 19980515; NO 982224 L 19980714; SE 507386 C2 19980525; SE 9603346 D0 19960916; SE 9603346 L 19980317
DOCDB simple family (application)
SE 9701437 W 19970828; BR 9706750 A 19970828; CA 2233193 A 19970828; EP 97936918 A 19970828; ID 973179 A 19970915; JP 51354898 A 19970828; KR 19980703436 A 19980508; NO 982224 A 19980515; SE 9603346 A 19960916