(19)
(11) EP 0 273 020 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
01.02.1989 Bulletin 1989/05

(43) Date of publication A2:
29.06.1988 Bulletin 1988/26

(21) Application number: 87850359.8

(22) Date of filing: 19.11.1987
(51) International Patent Classification (IPC)4D21D 1/30, D21D 5/04
(84) Designated Contracting States:
AT DE FR GB SE

(30) Priority: 22.12.1986 FI 865283

(71) Applicant: SUNDS DEFIBRATOR JYLHÄ OY
SF-37601 Valkeakoski (FI)

(72) Inventor:
  • Paavola, Jyrki
    SF-33300 Tampere (FI)

(74) Representative: Roth, Ernst Adolf Michael et al
GÖTEBORGS PATENTBYRA AB Box 5005
402 21 Göteborg
402 21 Göteborg (SE)


(56) References cited: : 
   
       


    (54) Means for defibrating and sorting pulp in paper and cellulose industry


    (57) A means for defibrating and sorting pulp in paper and cellulose industry, comprising a defibrating means (1,2) consisting of a rotor (2) and a stator (1), wherebetween is established a defibrating zone, and of a sorter (2,3) consisting of the same rotor (2) and another stator (3), wherebetween is established a sorting zone, and said stator (3) of the sorter is formed to be sieve-like, and said means comprising a pulp feed (4), accept removal (7) and reject removal (6). At present, defibrating and sorting processes have to be carried out using separate apparatus, which is expensive and space-consuming. With the aid of the present invention, the problem is solved in that the angle (α) between the centre-line (8) of the shaft of the rotor (2) and the defibrating zone is 75 to 105° and the angel (β) between the sorting zone and the centre-line (8) of the shaft of the rotor (2) is 75 to 105°, and that the defibrating zone and the sorting zone are located in the same pulp space (5).





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