(19)

(11)

EP 2 422 134 A1

(12)

(43) Date of publication: 29.02.2012 Bulletin 2012/09 (21) Application number: 10717846.9 (22) Date of filing: 23.04.2010

(51) International Patent Classification (IPC):  F23D 1/04(2006.01) (86) International application number: PCT/IB2010/051800 (87) International publication number: WO 2010/122529 (28.10.2010 Gazette 2010/43)

(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: 24.04.2009 DK 200900528 (71) Applicant: FLSmidth A/S 2500 Valby (DK)	(72) Inventor: OHLSEN, Ib DK-2820 Gentofte (DK) (74) Representative: Johansson, Lars E.  Hynell Patenttjänst AB P.O. Box 138 683 23 Hagfors 683 23 Hagfors (SE)