(19)
(11) EP 2 182 109 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
13.08.2014 Bulletin 2014/33

(43) Date of publication A2:
05.05.2010 Bulletin 2010/18

(21) Application number: 09174199.1

(22) Date of filing: 27.10.2009
(51) International Patent Classification (IPC): 
D21D 1/30(2006.01)
(84) Designated Contracting States:
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO SE SI SK SM TR

(30) Priority: 31.10.2008 FI 20086034

(71) Applicant: Valmet Technologies, Inc.
02150 Espoo (FI)

(72) Inventors:
  • Vuorio, Petteri
    37630 Valkeakoski (FI)
  • Seppälä, Veikko
    37600 Valkeakoski (FI)
  • Touvinen, Olli
    33530 Tampere (FI)

(74) Representative: TBK 
Bavariaring 4-6
80336 München
80336 München (DE)

   


(54) Method of manufacturing a refiner, and refiner


(57) A method of manufacturing a refiner (14, 16, 18), and a refiner. The method comprises changing a structure of at least one disc refiner (1). The refiner comprises a frame structure (2) which comprises a pressure frame (3) surrounding a refiner chamber (5) and a base frame (4) supporting the pressure frame (3) and at least one rotor (7) rotatable via a shaft (6). The method comprises changing the frame structure (2) of the disc refiner (1) at least over a section belonging to the pressure frame (3) such that the refiner chamber (5) of the refiner (14) is arrangeable to comprise a rotor (7) comprising a conical refining surface section (10') and a stator (9) comprising a conical refining surface section (11') or changing the frame structure (2) of the disc refiner (1) at least over a section belonging to the pressure frame (3) such that two single disc refiners (1) are combinable into one double disc refiner (16, 18) comprising two rotors (7).







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Search report