Device at rotary filter

Details Device at rotary filter Device at rotary filter

D - Textiles, Paper

21

C

92/13, 182/61

D21C 9/18 (2006.01) D21F 1/76 (2006.01) D21G 3/00 (2006.01)

Patent

CA 1122540

ABSTRACT OF THE DISCLOSURE A doctor device for removing a web of material from a filter drum in a filter for dewatering liquid-containing stock mixtures. The device com- prises a hollow doctor holder on which a doctor blade is mounted. In order to prevent deformations of the doctor device owing to heat stresses, fluid such as liquid or gas of substantically constant temperature is supplied to the cavity of the hollow doctor holder. The fluid is sprayed therefrom through nozzles against the drum for cleaning same.

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