Disk centrifuge for granular material

Details Disk centrifuge for granular material Disk centrifuge for granular material

1977-11-10

1979-05-01

Halper, Robert

Classifying, separating, and assorting solids

Fluid suspension

Gaseous

209136, 233 40, 406 71, D07B 7083

Patent

active

041522540

ABSTRACT:
A centrifuge for sifting granular material, ranging in particle size from a few microns to several hundred microns, for example, comprises an upwardly concave frustoconical disk rotatable about a horizontal axis and provided with a similarly shaped cover defining therewith a narrow annular gap of outwardly converging radial cross-section. Air, or some other gaseous or liquid fluid, is axially introduced from above into that gap together with the granular material to be centrifuged, the fluid stream imparting to the smaller particles an added acceleration making the velocities of all particles substantially equal at the disk periphery.

REFERENCES:
patent: 588908 (1897-08-01), Heslop
patent: 655792 (1900-07-01), Dusconaguerre
patent: 1577769 (1926-03-01), Street
patent: 1785918 (1930-12-01), Stebbins
patent: 2003141 (1935-05-01), Vorfan
patent: 2352677 (1944-07-01), Anderson
patent: 2546068 (1951-03-01), Oustavsson
patent: 3520407 (1970-07-01), Rumpf

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