OXYGEN CONVERTER GAS-OUTLET CIRCUIT Russian patent published in 2006 - IPC C21C5/38 

FIELD: ferrous metallurgy, namely gas outlet circuit of oxygen converter.

SUBSTANCE: gas outlet circuit includes main gas con, double-stage scrubber having hopper with hydraulic lock, smoke sucker, additional hood communicated through additional gas conduit with double-stage wet scrubber. Gas outlet circuit is provided in addition with system for dry removal of dust out of gas. Said system is in the form of elbow-separator mounted in turned zones of additional gas conduits with turning radius decreased from first elbow to last one and connected through pipelines with settling devices. First stage of scrubber is arranged horizontally. Additional gas conduit is opened to its upper wall. Second stage is arranged vertically. Main gas conduits before first stage of scrubber and additional gas conduit are provided with gas-tight valves. Hydraulic lock of hopper of double stage scrubber in the form of loop, its upper bending is arranged over level of draining opening of hopper.

EFFECT: enhanced reliability of gas exhausting without risk of explosion of gaseous mixtures.

2 cl, 2 dwg