(19)
(11) EP 0 578 284 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
12.03.1997 Bulletin 1997/11

(43) Date of publication A2:
12.01.1994 Bulletin 1994/02

(21) Application number: 93114759.9

(22) Date of filing: 22.02.1988
(51) International Patent Classification (IPC)5: B01F 7/00
(84) Designated Contracting States:
AT DE FR GB IT SE

(30) Priority: 23.02.1987 FI 870747

(62) Application number of the earlier application in accordance with Art. 76 EPC:
88102569.6 / 0280234

(71) Applicant: A. AHLSTROM CORPORATION
FIN-29600 Noormarkku (FI)

(72) Inventor:
  • Niskanen, Toivo
    SF-49 400 Hamina (FI)

(74) Representative: Görg, Klaus, Dipl.-Ing. et al
Hoffmann, Eitle & Partner, Patent- und Rechtsanwälte, Arabellastrasse 4
81925 München
81925 München (DE)

 
Remarks:
This application was filed on 10 - 09 - 1993 as a divisional application to the application mentioned under INID code 60.
 


(54) Mixing apparatus for improving the treatment of fibre suspension


(57) The present invention relates to a mixing apparatus for improving the treatment of fibre suspension. The apparatus comprises a housing (13) for the fibre suspension flow having a mixing chamber with an inlet opening (14), an outlet opening (16), and a fluidizing rotor (22) arranged in the mixing chamber. The fluidizing rotor (22) is formed of a shaft (21) extending through the housing (13) substantially at a right angle to the fibre suspension flow therethrough and finger-like fluidizing members (26) attached to the end (25) of said shaft (21) in the housing (13).






Search report