Suspension smelting furnace for finely-divided sulfide and/or ox

Details Suspension smelting furnace for finely-divided sulfide and/or ox Suspension smelting furnace for finely-divided sulfide and/or ox

1976-07-23

1977-06-07

Dost, Gerald A.

Metallurgical apparatus

Means for extracting and refining metal

With separate refining zone

266190, C22B 500

Patent

active

040278638

ABSTRACT:
A suspension smelting furnace system for suspension smelting of finely-divided sulfidic and/or oxidic ores or concentrates is disclosed. The furnace system has a horizontal lower furnace to which the lower ends of at least one vertical suspension reaction shaft and one rising-flow shaft are connected, with devices at the upper end of the suspension reaction shaft for producing a suspension of the finely-divided raw material with an oxygen containing gas and for directing the suspension downwards in the reaction shaft perpendicular to the surface of melt accumulated in the lower furnace in order to discharge most of the suspension into the melt. The rising-flow shaft includes means for removing the residual suspension, and there are means for removing slag, metal and matte from the lower furnace.
Inside the suspension reaction shaft there is a gas-tight pressure water cooling pipe system having forced circulation for producing on the surface of the system an autogenous lining material of solidified matte and slag components.
The suspension reaction shaft may also be subdivided in several vertical suspension reaction zones by means of said pressure water cooling pipe system.

REFERENCES:
patent: 3271134 (1966-09-01), Derham

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