EP 0578284 B1 19991020 - Mixing apparatus for improving the treatment of fibre suspension
Title (en)
Mixing apparatus for improving the treatment of fibre suspension
Title (de)
Rührwerk zur Verbesserung der Verarbeitung von Fasernsuspension
Title (fr)
Appareil mélangeur par améliorer le traitement de fibres en suspension
Publication
Application
Priority
- EP 88102569 A 19880222
- FI 870747 A 19870223
Abstract (en)
[origin: EP0280234A2] The present invention relates to a method and an apparatus for optimizing the control and treatment of fibre suspension flow. The invention is mainly intended to be applied in connection with pumping of high consistency pulp in pulp and paper industry. In general, a control valve is provided on the discharge site of the pump in order to regulate the flow. Problems with high pressure loss across the control valve or clogging of the valve are eliminated or minimized by the method and apparatus (19) according to the invention, in which in close proximity to the flow side surface of the valve element (19) a fluidizing element (22) is arranged, which fluidizes the pulp to a liquid state so that the pulp can flow through the valve opening (16) and not clog it.
IPC 1-7
IPC 8 full level
B01F 3/12 (2006.01); B01F 7/00 (2006.01); B01F 15/00 (2006.01); D21C 9/00 (2006.01); F16K 5/06 (2006.01)
CPC (source: EP)
B01F 23/53 (2022.01); B01F 25/3141 (2022.01); B01F 27/1126 (2022.01); B01F 27/50 (2022.01); D21C 9/00 (2013.01); B01F 27/1123 (2022.01)
Designated contracting state (EPC)
AT DE FR GB IT SE
DOCDB simple family (publication)
EP 0280234 A2 19880831; EP 0280234 A3 19910109; EP 0280234 B1 19940518; AT E105884 T1 19940615; AT E185704 T1 19991115; CA 1313325 C 19930202; DE 280234 T1 19890622; DE 3856373 D1 19991125; DE 3856373 T2 20000323; DE 3889559 D1 19940623; DE 3889559 T2 19940929; EP 0578284 A2 19940112; EP 0578284 A3 19970312; EP 0578284 B1 19991020; FI 82499 B 19901130; FI 82499 C 19920714; FI 870747 A0 19870223; FI 870747 A 19880824; JP H0240790 B2 19900913; JP S63288288 A 19881125; NO 178468 B 19951227; NO 880758 D0 19880222; NO 880758 L 19890823
DOCDB simple family (application)
EP 88102569 A 19880222; AT 88102569 T 19880222; AT 93114759 T 19880222; CA 559428 A 19880222; DE 3856373 T 19880222; DE 3889559 T 19880222; DE 88102569 T 19880222; EP 93114759 A 19880222; FI 870747 A 19870223; JP 3876288 A 19880223; NO 880758 A 19880222