Method and apparatus for separating particulate materials

Details Method and apparatus for separating particulate materials Method and apparatus for separating particulate materials

1977-03-22

1978-11-14

Lutter, Frank W.

Classifying, separating, and assorting solids

Fluid suspension

Gaseous

209138, B07B 700

Patent

active

041254562

ABSTRACT:
A method and apparatus is provided for separating heavier particulate material from a mixture of light particulate material, heavy particulate material and gas. The apparatus includes a vessel having an outlet at a lower portion thereof wherein particulate material flows toward the outlet and is contacted by countercurrent flow of gas for uplifting of lighter particles of particulate material. Heavy particulate material and some light particulate material is then collected in a chamber of a valve wherein sequential injections of gas in a lower portion of the chamber further separates light particulate material from the heavy particulate material with the remaining particulate material in the chamber being discharged by sequential operation of the valve.

REFERENCES:
patent: 2591043 (1952-04-01), Berndt
patent: 2779468 (1957-01-01), King et al.
patent: 2963152 (1960-12-01), Leslie et al.
patent: 3308945 (1967-03-01), Oja
patent: 3493350 (1970-02-01), Howard
patent: 3595437 (1971-07-01), Howard
patent: 3956106 (1976-05-01), Muck et al.

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