Chemistry: physical processes
Patent
1978-06-12
1979-05-22
Krizmanich, George H.
Chemistry: physical processes
233 23R, B04B 1108
Patent
active
041555031
ABSTRACT:
A centrifugal separator comprising an upright cylindrical drum having top and bottom walls which extend radially inward from its cylindrical side walls. The upper annular wall has a center aperture greater in diameter than the corresponding center aperture of the lower annular wall. A liquid slurry is delivered to the interior of the drum as it rotates, forcing separation of solid particles as they migrate outwardly toward the drum side walls. Excess liquid escapes over the top of the drum through the opening at the center of the upper annular wall. An independently rotatable scraper blade is coaxially mounted with the drum and is located adjacent the interior side walls. The scraper blade can be independently braked to assist in removing solid materials from the rotating side walls while drum rotation is being terminated.
REFERENCES:
patent: 3424375 (1969-01-01), Maurer
patent: 3494542 (1970-02-01), Craig et al.
patent: 3761014 (1973-09-01), Carter
patent: 3991935 (1976-11-01), Henning
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