Method and apparatus for removing deposit in non-ferrous smeltin

Details Method and apparatus for removing deposit in non-ferrous smeltin Method and apparatus for removing deposit in non-ferrous smeltin

1997-10-30

1999-11-09

Kastler, Scott

Metallurgical apparatus

Process

266135, 266DIG1, C22B 1500

Patent

active

059808160

ABSTRACT:
A method of removing furnace deposit in a non-ferrous smelting furnace, comprising the steps of inserting a lance 2 provided with a spray nozzle 4 at the tip thereof from a furnace ceiling into a furnace; spraying a reducing agent from the spray nozzle 4 at the tip of the lance toward a molten deposit mainly comprising oxides adhering to a furnace wall surface of a non-ferrous smelting furnace by turning the lance within a prescribed angular range and vertically moving the lance within a prescribed range; reducing the molten deposit into a low-melting-point slag; causing the slag to flow; and discharging the slag together with furnace slag to outside the furnace.

REFERENCES:
patent: 3960546 (1976-06-01), Rote et al.
Japanese Patent Abstract JP408121741A, May 1996.
Japanese Patent Abstract JP410140255A, May 1998.

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