Classifying – separating – and assorting solids – Sorting special items – and certain methods and apparatus for... – Separating means
Patent
1987-09-28
1990-02-20
Reeves, Robert B.
Classifying, separating, and assorting solids
Sorting special items, and certain methods and apparatus for...
Separating means
209296, 209672, 209288, B07B 114, B07B 122
Patent
active
049018639
ABSTRACT:
A wood chip sorter comprises a shell (22) which at least partially defines a substantially cylindrical sorting chamber (26) into which wood chips are introduced. The shell (22) has a plurality of rotatable shafts (28) mounted thereon with the axes (72) of the shafts (28) being circularly arranged about a central axis (24) of the shell (22). Each shaft (28) has a plurality of discs (80) mounted at spaced intervals thereon with discs of adjacent shafts (28) intermeshing radially to form essentially axial spaces (84) therebetween. A drive and transmission system (30) revolve the shell (22) about the central axis (24) of the shell (22). A planetary gear system (32) facilitates rotation of the shafts (28) about their axes (72) as the shell (22) revolves. The discs (80) are shaped to have greatest axial width at central portions thereof, and taper to a lesser axial width at their circumference. The discs (80) are formed from an abrasion-resistant material. Compressible spacer members (82) are mounted between adjacent discs on a shaft. An inlet (34) is configured to include a helically threaded feed member (46) which extends into the shell (22) and along the central axis (24) thereof. The inlet (120) facilitates input of the wood chips so that chips in a desired thickness range have the opportunity to pass through the axial spaces (84) existing between intermeshing, (80) discs of adjacent shafts (28).
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Christie, R. D., "Chip Screenings for Pulping Uniformity," 1986 Pulping Conference, pp. 551-561 (1986).
Christie, R. D., "Chip Thickness and Its Effect on Pulping Needs Further Study," Pulp & Paper Canada 87:9 (1986).
"RDS Radar Disc Screen" (copyright 1978).
"Disc Scalping Conveyor," West Salem Machinery Company-no date.
Hajec Donald T.
Hilbers L. F.
Reeves Robert B.
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