Inclined, vibrated, sifter and stratifier with gates

Details Inclined, vibrated, sifter and stratifier with gates Inclined, vibrated, sifter and stratifier with gates

1976-03-01

1978-02-28

Halper, Robert

Classifying, separating, and assorting solids

Plural, diverse separating operations

Aqueous suspension, sifting, and stratifying

209443, B03B 700

Patent

active

040766144

ABSTRACT:
Heavy metal values are separated from particulate material such as, for example, river sand or gravel, by depositing the material in a vibrating, inclined chute, where the coarser elements of the material are separated by a screen, and the material is then passed into two successive troughs for crude and fine extractions, whereby, tailings in the form of sand and other light particles are flushed out leaving any heavy metal values deposited in the second trough for discharge through a normally closed discharge opening. Flushing in the troughs is effected using perforated pipes for spraying water into the material and creating a turbulent flowing suspension of the particles.

REFERENCES:
patent: 70914 (1867-11-01), Stiles
patent: 171747 (1876-01-01), Thompson
patent: 189928 (1877-04-01), Evans
patent: 247077 (1881-09-01), Lodwick
patent: 540953 (1895-06-01), Dana
patent: 552931 (1896-01-01), Sopen
patent: 620014 (1899-02-01), Blacket
patent: 747214 (1903-12-01), Parker
patent: 859354 (1907-07-01), Wall
patent: 2298015 (1942-10-01), Lincoln

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