公开(公告)号：EP3313632A1

公开(公告)日：2018-05-02

申请号：EP16730394.0

申请日：2016-06-20

申请人： Eternit NV ,  ETEX SERVICES NV

发明人： CLOET, Peter ,  VAN ACOLEYEN, Bertrand ,  MUYSOMS, Wouter

IPC分类号： B28B1/52 ,  B01F5/10 ,  B01F3/12 ,  B28B17/02 ,  D21F1/66 ,  D21F9/04 ,  D21F11/08

CPC分类号： B28B1/527 ,  B01F3/1271 ,  B01F5/10 ,  B28B17/02

摘要： A method for controlling the liquid level in the premixing unit (500) of a Hatschek machine (1000) comprising a sheet manufacturing machine (100), a cement slurry preparation mixer (200), a settling tank (300), a selectifier (400), and a premixing unit (500), wherein a level meter measures the liquid level in the premixing unit and generates a measurement signal, and wherein said measurement signal directly or indirectly controls a control valve (801), such that the amount of the portion of the water-loaded cement slurry of the sheet manufacturing machine (100) that is supplied to the selectifier (400), is controlled.