Classifying – separating – and assorting solids – Sifting – Concave and convex sifters
Patent
1999-11-12
2000-10-31
Nguyen, Tuan N.
Classifying, separating, and assorting solids
Sifting
Concave and convex sifters
209276, 209281, 209283, B07B 106
Patent
active
06138836&
ABSTRACT:
In the arrangement, the cross section of a blade rotating close to the surface of a screen cylinder changes in such a way that as the pulp consistency changes in the vertical direction of the screen cylinder, the cross section of the blade also changes in order to operate as efficiently as possible according to the pulp consistency by the blade.
REFERENCES:
patent: 4097374 (1978-06-01), Young
patent: 4111799 (1978-09-01), Cancilla
patent: 5000842 (1991-03-01), Ljokkoi
patent: 5611434 (1997-03-01), Veh et al.
Miller Jonathan R.
Nguyen Tuan N.
Valmet Corporation
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