Pulp washing apparatus and process

Details Pulp washing apparatus and process Pulp washing apparatus and process

D - Textiles, Paper

21

C

92/60

D21C 9/02 (2006.01) D21C 9/06 (2006.01) D21D 1/40 (2006.01)

Patent

CA 2009328

MB258802104 Abstract of the Disclosure An improved pressure washer and process are disclosed for washing cellulose pulp, wherein a mat of pulp is provided on a rotating drum and moves through a washing zone and a dewatering zone between the mat formation zone and a mat removal zone. A hood is provided over the drum, with appropriate seals, and a pressurized atmosphere is provided in the washing and dewatering zones. To relieve the pressure which normally builds up inside the washer drum, a conduit is connected between the drum interior and the inlet of the blower used for pressurizing the hood. In this way, foam generation is minimized as the drum interior is maintained at or below atmospheric pressure. A take-off roll, or doctor, is provided for removing the mat from the drum.

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