公开(公告)号：EP1342043B1

公开(公告)日：2007-01-03

申请号：EP01985342.3

申请日：2001-11-27

申请人： Outokumpu Technology Oyj

发明人： STRÖDER, Michael ,  ZINGREBE, Horst ,  VOLLMER, Hubert

IPC分类号： F27B15/08 ,  F27D3/00

CPC分类号： F26B3/08 ,  B65G69/0466 ,  C21B13/0033 ,  F26B25/002 ,  F27B15/08 ,  F27D3/0033 ,  F27D2003/0077 ,  F27M2003/03

摘要： According to the method, granular ore or ore concentrate is introduced into a kiln (1) for roasting the ore at temperatures of 400 to 1050 DEG C, whereby the ore in the kiln forms a stationary fluidised bed (3). The ore is projected onto the fluidised bed through an opening (16) in the kiln housing located above said fluidised bed, the ore being accelerated by the blades (14a) of a rotating projection wheel. Said projection wheel (14) lies outside the kiln in the vicinity of the housing opening. Preferably, the speed of the projection wheel is variable and the projection wheel can be displaced and/or pivoted in relation to the kiln.