Method and apparatus for increasing the capacity of a waste heat boiler in a metallurgic smelting furnace
AssigneeOutokumpu Technology Oy
InventorsRisto Saarinen, Ilkka Kojo
Life of this patent
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Abstract
The invention relates to a method for increasing the capacity of a waste-heat boiler (1) processing gases obtained from a metallurgic smelting furnace, such as a flash smelting furnace, and for reducing dust accretions, where liquid is added into the waste-heat boiler (1) of the smelting furnace. The invention also relates to an apparatus for increasing the capacity of a waste-heat boiler (1) processing gases obtained from a metallurgic smelting furnace, such as a flash smelting furnace, and for reducing dust accretions, in which case the waste-heat boiler is provided with at least one nozzle (2) for adding liquid.
Claims5
A method for increasing the capacity of a waste-heat boiler processing gases obtained from a metallurgic smelting furnace, the waste heat boiler having a radiation chamber and a convection chamber, and for reducing dust accretions, comprising
- increasing the quantity of gas entering the waste-heat boiler,
- adding liquid into the radiation chamber of the waste-heat boiler of the smelting furnace and
- controlling the quantity of liquid flow according to the incoming gas quantity so that the gas temperature in the waste-heat boiler after the convection chamber does not surpass 420° C.
Dependencies are inferred from the claim text.