Paper making and fiber liberation – Apparatus – Digester
Patent
1974-08-09
1976-03-02
Bashore, S. Leon
Paper making and fiber liberation
Apparatus
Digester
232905, 162246, 162249, 162251, 162274, 209379, 210412, 210413, D21C 700
Patent
active
039416500
ABSTRACT:
A continuous digester in which liquor is drained, at various levels, through a screen into a compartment formed by half rings attached to the interior of the digester. The compartment is provided with rotating vanes, which backwash the screen by pulsing liquid therethrough. The digester includes a lower cone, provided with an impeller and compartment for introducing and circulating liquor for "cold blow" of product.
REFERENCES:
patent: 3755072 (1973-08-01), Ostberg et al.
patent: 3802956 (1974-04-01), Backlund
patent: 3811994 (1974-05-01), Ostberg
Bashore S. Leon
Yeung George C.
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