Method and apparatus for the pyrometallurgical treatment of fine

Details Method and apparatus for the pyrometallurgical treatment of fine Method and apparatus for the pyrometallurgical treatment of fine

1985-10-24

1987-05-19

Andrews, Melvin J.

Metallurgical apparatus

Means for treating ores or for extracting metals

By means applying heat to work, e.g., furnace

266221, 266267, F27D 318

Patent

active

046661328

ABSTRACT:
A method and apparatus for the pyrometallurgical treatment of fine grained solids such as non-ferrous metal ore concentrates with an oxygen-containing gas wherein the solids are mixed with the gas to form a suspension which is blown through a nozzle into a reaction chamber such as a vertical melting cyclone. In the reaction chamber, the solids are brought to reaction and melted. The invention is concerned with injecting a particle stream through the reaction zone as a focused open jet having mass flow velocity of greater than 50 kg/m.sup.2 .multidot.sec and having a linear speed of more than 35 m/sec. The particle stream is ignited by the hot combustion gases thereof or by a pilot flame. In a preferred embodiment of the invention, the particle stream is directed along a horizontal secant of the chamber to the opposite wall.

REFERENCES:
patent: 3607224 (1971-09-01), Blaskowski
patent: 3759501 (1973-09-01), Foard

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