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EP 2 622 129 A2

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(88) Date of publication A3: 13.06.2013 (43) Date of publication: 07.08.2013 Bulletin 2013/32 (21) Application number: 11770848.7 (22) Date of filing: 26.09.2011

(51) International Patent Classification (IPC):  D21C 11/12(2006.01) F23G 5/46(2006.01) F23L 15/00(2006.01) (86) International application number: PCT/FI2011/050828 (87) International publication number: WO 2012/042107 (05.04.2012 Gazette 2012/14)

(84) Designated Contracting States: AL 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 RS SE SI SK SM TR (30) Priority: 27.09.2010 US 386818 P (71) Applicant: Andritz Oy 00180 Helsinki (FI)	(72) Inventors: BERG, Carl-Gustav FI-02700 Kauniainen (FI) KETONEN, Päivi FI-00140 Helsinki (FI) KOISTINEN, Peter FI-02710 Espoo (FI) (74) Representative: HOFFMANN EITLE  Patent- und Rechtsanwälte Arabellastrasse 4 81925 München 81925 München (DE)