(19)

(11)

EP 3 774 085 A1

(12)

(43) Date of publication: 17.02.2021 Bulletin 2021/07 (21) Application number: 19709767.8 (22) Date of filing: 20.02.2019

(51) International Patent Classification (IPC):  B07B 1/00(2006.01) B07B 13/16(2006.01) (86) International application number: PCT/FI2019/050132 (87) International publication number: WO 2019/197706 (17.10.2019 Gazette 2019/42)

(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 Designated Extension States: BA ME Designated Validation States: KH MA MD TN (30) Priority: 09.04.2018 FI 20185332 (71) Applicant: Metso Minerals, Inc. 33900 Tampere (FI)	(72) Inventors: LEINONEN, Timo 33101 Tampere (FI) MÄKINEN, Marko 33101 Tampere (FI) KEIHÄNEN, Osku 33101 Tampere (FI) (74) Representative: Espatent Oy  Kaivokatu 10 D 00100 Helsinki 00100 Helsinki (FI)