ANODE SHROUD FOR OFF-GAS CAPTURE AND REMOVAL FROM ELECTROLYTIC OXIDE REDUCTION SYSTEM

摘要

The anode shroud of the present invention is used to capture and remove off-gas from an electrolytic oxide reduction system which may include a plurality of anode assemblies and an anode shroud for each of the anode assemblies. The anode shroud includes a body portion having a tapered upper section that includes an apex. The body portion has an inner wall that defines an off-gas collection cavity. A chimney structure extends from the apex of the upper section and is connected to the off-gas collection cavity of the body portion. The chimney structure includes an inner tube within an outer tube. Accordingly, a sweep gas/cooling gas may be supplied down the annular space between the inner and outer tubes, while the off-gas may be removed through an exit path defined by the inner tube.