Bottom structure for a smelting furnace

Details Bottom structure for a smelting furnace Bottom structure for a smelting furnace

2005-02-22

2005-02-22

Kastler, Scott (Department: 1742)

Metallurgical apparatus

Linings

With specific lining enclosing structure

C266S280000, C266S283000

Reexamination Certificate

active

06858175

ABSTRACT:
The invention relates to a bottom structure of a suspension smelting furnace to be used in a smelting furnace (1), in the reaction space (2) whereof of sulfidic raw material containing metal, such as copper, nickel or lead, is smelted in the presence of an oxygen-bearing gas and slag-forming agent, in order to render the metal in a form that is advantageous for further treatment, and where the created molten phases (5, 6) are settled onto the bottom (3) of the smelting furnace in order to separate the molten phases form each other, when the temperature of the molten phases is within the range 1150-1450° C. According to the invention, the bottom structure includes at least one arched lining layer (7) inclined in the longitudinal direction of the smelting furnace, so that the temperature on the surface (89that is opposite to the surface that gets into contact with the molten phase is below 800° C.

REFERENCES:
patent: 4088310 (1978-05-01), Noponen et al.
patent: 4325538 (1982-04-01), Wozniczko et al.
patent: 4428731 (1984-01-01), Maes et al.
patent: 4773630 (1988-09-01), Carminati et al.
patent: 34 05 462 (1984-08-01), None
patent: 0 499 956 (1996-05-01), None

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