Classifying – separating – and assorting solids – Precedent preparation of items or materials to facilitate... – Selective differentiation
Patent
1975-07-18
1976-12-14
Lutter, Frank W.
Classifying, separating, and assorting solids
Precedent preparation of items or materials to facilitate...
Selective differentiation
209144, 209 20, 209499, 302 51, 302 57, 222194, 34 10, 34 57A, B03B 100
Patent
active
039974332
ABSTRACT:
A method and apparatus for generating dry dust particles of a constant concentration from dry solid particles. The apparatus has a dust dispersion section receiving powdered material from a dust feeding section. The dust dispersion section includes a bed of beads subjected to a constant supply of air. An endless chain delivers a continuous supply of powdered material to the bed of beads and the air moving through the bed of beads. The chain is scrubbed by the beads and the air whereby the particles of powdered material are dispersed and entrained in the moving air. The particles move through a tube and are electrically neutralized with a radioactive source. A particle separator can be used to remove large particles. A photometer monitors the concentration of the particles emanating from the apparatus in aerosol form.
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Liu Benjamin Y. H.
Marple Virgil A.
Hill Ralph J.
Lutter Frank W.
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