Method for cooling the gas flow in a smelting furnace
AssigneeOutokumpu Oyj
InventorsAntti Jalonen, Risto Saarinen
Life of this patent
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Abstract
The present invention relates to a method for cooling the gas flow exiting through the uptake of a smelting furnace such as a flash-smelting furnace with finely dispersed liquid sprays, which prevents the solid matter particles contained within from coalescing and sintering.
Claims21
A method to prevent dust particles flowing with an exhaust gas flow of a smelting furnace from sintering at the exhaust gas outlet of the smelting furnace and in after-treatment equipment, comprising cooling the exhaust gas flow to an extent such that the dust particles are cooled to a temperature below the melting point of the dust particles before the gas exits from the furnace.
A method to prevent dust particles flowing with an exhaust gas flow of a smelting furnace from sintering at the exhaust gas outlet of the smelting furnace and in after-treatment equipment, comprising cooling the exhaust gas flow to an extent such that the dust particles are cooled to a temperature below the sintering point of the dust particles before the gas exits from the furnace.
A method of operating a smelting furnace having an uptake leading to an exhaust gas outlet, said method comprising cooling an exhaust gas flow of the furnace in the uptake to prevent sintering of dust particles in the exhaust gas.
Dependencies are inferred from the claim text.