Method and apparatus for improving heat and dust recovery in a w

Details Method and apparatus for improving heat and dust recovery in a w Method and apparatus for improving heat and dust recovery in a w

1994-12-30

1996-04-09

Kastler, Scott

Metallurgical apparatus

Process

266155, C21B 722

Patent

active

055054340

ABSTRACT:
The invention relates to a boiler construction successive to a smelting furnace, particularly a flash smelting furnace, whereby a direct flow from the radiation section of a waste heat boiler to the convection section thereof is prevented by means of an intermediate plate located in the boiler, advantageously made of cooler pipes and arranged in a direction essentially parallel to the flow. At the same time, the return of the gas flow to the outlet opening of the smelting furnace is prevented in order to reduce the tendency to dust accretions caused by the gases. By means of a flow pattern thus optimized, the eddy currents or dead areas in the radiation section are remarkably reduced, which lengthens the delay time advantageous mainly for heat transfer.

REFERENCES:
patent: 2182129 (1939-12-01), Kuzell
patent: 3601382 (1971-08-01), Sandri et al.
patent: 4475947 (1984-10-01), Andersson
patent: 4908058 (1990-03-01), Saarinen

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