Paper making and fiber liberation – Apparatus – Digester
Patent
1993-12-07
1996-07-23
Chin, Peter
Paper making and fiber liberation
Apparatus
Digester
162 52, 137238, 137590, D21C 708
Patent
active
055385974
ABSTRACT:
An apparatus for the discharge of a mass tower containing medium to high consistency pulp and operable without the need for further dilution includes a vessel for storing the pulp; a suction duct extending from a zone of moving pulp to a region outside of the tower; and a pump attached to the end of the suction duct for discharging the pulp.
REFERENCES:
patent: 2772864 (1956-12-01), Rich et al.
patent: 3787284 (1974-01-01), Richter
patent: 4676809 (1987-06-01), Fjallstrom et al.
patent: 5058615 (1991-10-01), Timperi et al.
patent: 5087171 (1992-02-01), Dosch et al.
patent: 5106456 (1992-04-01), Voitto et al.
European Search Report EP 0 475 669 A3, filed Sep. 4, 1991.
Copy (2 pp.) of article headed "Medium-consistency technology".
Koso Arto
Reponen Voitto
Vesala Reijo
A. Ahlstrom Corporation
Chin Peter
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