Industrial electric heating furnaces – Environmental control – Arc furnace
Patent
1981-06-08
1984-04-17
Envall, Jr., Roy N.
Industrial electric heating furnaces
Environmental control
Arc furnace
373 87, 373 73, F27D 700
Patent
active
044438788
ABSTRACT:
A method and a hood for mixing a hot furnace gas with a second gas before the furnace gas is discharged from a furnace by directing the hot furnace gases out via a hood which forms an uninterrupted space for gas with the furnace is disclosed in which the second gas is fed along the side walls of the hood substantially countercurrently in relation to the hot gases emerging from the furnace in order to mix the gases with each other into a toroidal vortex, and that the gases are removed from this vortex tangentially.
REFERENCES:
patent: 3909499 (1975-09-01), Stark
patent: 3997711 (1976-12-01), Stark et al.
Heikkila Risto M.
Norrman Bengt J. F.
Tuovinen Frans H.
Envall Jr. Roy N.
Outokumpu Oy
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