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US 4,066,535 AGranted
Method and apparatus for the classification of fine material from a stream of material in a circulating air classifier
AssigneeKlockner-Humboldt-Deutz Aktiengesellschaft
InventorWerner Strauss
Life of this patent
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Abstract
Method and apparatus for classifying articles of varying size from a stream of particulate material in which the stream is subjected to centrifugal forces to provide an annular dispersion, and a stream of air is directed substantially perpendicular through the dispersion to aid in separating the fines from the coarser particles.
Claims6
A classifier for classifying particulate materials comprising:
- means defining an outer housing,
- means defining an inner housing spaced from said outer housing and concentric therewith,
- inlet means for introducing a stream of particles through said outer housing,
- a horizontally disposed rotating spreading means receiving said stream and arranged to centrifugally propel the particles outwardly,
- baffle means substantially surrounding said spreading means and positioned to be impacted by the particles propelled by said spreading means to form a falling annular dispersion of particles, said baffle being substantially coextensive with the inlet to said housing,
- an impeller located below said spreading means and arranged to direct air radially through said dispersion to thereby separate finer particles from coarser particles, and
- means for separately collecting said finer particles and said coarser particles.
4 more elements
Dependencies are inferred from the claim text.