Dry washer with hot air supply

Details Dry washer with hot air supply Dry washer with hot air supply

1985-06-18

1986-10-07

Schor, Kenneth M.

Classifying, separating, and assorting solids

Electrostatic

Stratifying

2091272, 2091273, 209 11, 209 44, 209466, 165 51, 165119, B03C 704, B07B 900

Patent

active

046157972

ABSTRACT:
The electrostatic recovery of gold in the drywasher is improved by providing means to scavenge the waste heat from the internal combustion engine that powers the air blower. This preheats the intake air to the air blower, whereby the equilibrium temperature of the compressed air delivered to the partially fluidized bed of ore particles on the riffle table is raised about 50.degree. F. above ambient temperature. The layer of fabric underlying the bed of particles is maintained at bone dryness, the ore particles are dried, and the electrostatic forces operate under most favorable conditions at low relative humidity.

REFERENCES:
patent: 613143 (1898-09-01), Harris
patent: 1701624 (1929-02-01), Lide
patent: 2116613 (1938-05-01), Bedford
patent: 2161500 (1939-06-01), Bird et al.
patent: 3773174 (1973-11-01), Stimpel
patent: 4231717 (1980-11-01), Onishi
patent: 4411038 (1983-09-01), Mukai

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