Classifying – separating – and assorting solids – Fluid suspension – Liquid
Patent
1992-02-19
1993-06-15
Jones, W. Gary
Classifying, separating, and assorting solids
Fluid suspension
Liquid
209207, 209642, 209695, 494 43, B03B 558
Patent
active
052190765
ABSTRACT:
Fractionation apparatus (20) is disclosed which utilizes a rapidly rotating disk which receives a liquid suspension of particles to be separated onto its rotating face surface (35). When the film of liquid and particles on the rotating face surface (35) reaches the peripheral edge (38) of the face, particles having sufficient kinetic energy to overcome surface forces (e.g., above a certain size) are radially ejected while particles with less kinetic energy (e.g., smaller particles) and the liquid are carried over the edge onto the surface of a depending rim (39). The suspension of smaller particles and liquid is carried down the rim to the rim edge (40) at which point the smaller particles and liquid are disengaged. A separator wall (27) may be interposed between the two streams of particles emanating from the disk (24) to provide a physical separation of the larger and smaller particles once they have left the disk. The characteristics of the face surface, the angle of the rim with respect to the face, the disk speed, suspension feed rate, and other operating conditions can be selected such that highly efficient fractionations of particle suspensions, such as wood pulp slurries, can be obtained about a selected break point particle size.
REFERENCES:
patent: 472682 (1892-04-01), Pape et al.
patent: 1358375 (1920-11-01), Koch
patent: 1517509 (1924-12-01), Hokanson
patent: 2224169 (1940-12-01), Turnbull
patent: 3276591 (1966-10-01), Hultsch
patent: 3326459 (1967-06-01), Leroux
patent: 3485360 (1969-12-01), Deinken et al.
patent: 3591000 (1971-07-01), Humphreys
patent: 3819110 (1974-06-01), Baturov et al.
patent: 4288317 (1981-09-01), de Ruvo et al.
patent: 4334987 (1982-06-01), Mamadzhanov et al.
patent: 4427541 (1984-01-01), Crosby et al.
patent: 5104522 (1992-04-01), Crosby et al.
Soviet Inventions Illustrated, Derwent Publications LTD., London GB, Section Chemical/General E44 Abstract No. 82-94771E, Classes Jo2 P41, 15 Dec. 1982 which is an abstract of Soviet Union Patent Document SU-A-895571 [A. N. Dubovets] dated 7 Jan. 1982.
Chemie-Ingenieur Technik, vol. 37, No. 12 Dec. 1965, Eeinheim, DE (Germany), pp. 1221-1223, A. Kober, et al., "Trennung Durch Adhasion--ein neues Verfahren Zum Masskalssieren".
Felsvang, et al, Screening, Cleaning and Fractionation with a Rotating Cup Atomizer, 17th Eucepa Cone, Vienna, Oct. 10-14, 1977.
Moller, et al, "Screening, Cleaning and Fractionation, with an Atomizer," Paper Technology and Industry, vol. 20(3), pp. 110-114, Apr., 1979.
Moller, et al "High Consistency Pulp Fractionation with an Atomizer," Tappi, vol. 63(9), pp. 89-91, Sep. 1980.
Crosby Edwin J.
Oroskar Anil R.
Burns Todd J.
Jones W. Gary
Wisconsin Alumni Research Foundation
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