| 摘要 |
FIELD: metallurgy.SUBSTANCE: invention relates to electrometallurgy and can be used at electrosmelting of sintered pellets at arc steel smelting furnaces with combustible gas afterburning above the pool nearby the zone of off-gas suction form the plant. Arc steel smelting furnace comprises body with metal and slag channel, roof, lateral walls and tuyere for oxygen flow feed for off-gas afterburning in the furnace working space. This furnace incorporates off-gas suction pipe fitted at furnace roof. Said tuyere is arranged inside said pipe to displace along pipe axis and relative to this axis within the limits of 30-60 degrees. Note that nozzle is fitted at the end of said tuyere, nozzle inner surface being threaded to swirl oxygen flow at nozzle outlet and to interact with opposite combustible off-gas flow from the bath.EFFECT: intensified steel smelting, higher performances of the process.4 cl, 1 dwg |
