Method of reducing emissions from a metal melting furnace

Details Method of reducing emissions from a metal melting furnace Method of reducing emissions from a metal melting furnace

1994-12-14

1996-05-21

Andrews, Melvyn

Specialized metallurgical processes, compositions for use therei

Processes

Producing or treating free metal

75653, 75686, C22B 916, C22B 1500, C22B 2100

Patent

active

055185240

ABSTRACT:
A vertical shaft furnace for melting non-ferrous metals, such as copper, aluminum, and their alloys, includes metal blocks disposed in an annular wall just beneath the charging section of the furnace. Preheated air is forced into the furnace shaft through openings in the wall of metal blocks to burn or oxidize substantially all the CO gas contained in the combustion gases rising from the melting chamber of the furnace. A pressurized plenum surrounding the shaft adjacent the charge opening is used to preheat ambient air which is then supplied under pressure to another plenum above the melting chamber where the preheated air is introduced into the shaft.

REFERENCES:
patent: 1889757 (1932-12-01), Miller
patent: 3545918 (1970-12-01), Frundl et al.
patent: 4664702 (1987-05-01), Barnes et al.
patent: 4842256 (1989-06-01), Bardenheuer

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