Classifying – separating – and assorting solids – Sifting – Feeding and discharging
Patent
1978-05-30
1980-03-18
Halper, Robert
Classifying, separating, and assorting solids
Sifting
Feeding and discharging
209273, 209379, 210415, B07B 120
Patent
active
041938658
ABSTRACT:
A classifying apparatus for a suspension, especially for a pulp suspension, having a screen drum, means for feeding the suspension to one side of the screen drum, for removing thickened suspension from the same side of the screen drum and liquid from the opposite side of the screen drum, blades inclined in relation to their direction of rotation so that any one of the ends of the inclined blades is substantially on the same screen drum line parallel to the screen drum axis as the opposite end of some other blade and fitted to sweep at least one surface of the screen drum, and driving means for moving the blades in relation to the screen drum.
REFERENCES:
patent: 3970548 (1976-07-01), Seifert et al.
patent: 3997441 (1976-12-01), Pamplin
Halper Robert
Hokanson Jon E.
OY Tampella AB
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