CONVERTER GAS RECOVERY DEVICE AND SEAL GAS BLOWING OPERATION METHOD

摘要

A converter gas recovery device can reliably replace a portion open to the atmosphere between a converter throat and the converter gas recovery device with an inert gas atmosphere by introducing a large amount of inert gas into the portion open to the atmosphere, and recovers converter gas generated in a converter blowing process from a recovery hood, the converter gas recovery device being characterized in that blowing portions (7, 8) for seal gas having the inert gas as a main component are provided toward an air stream from the converter front side to the converter throat in a converter space between a dust collection duct disposed on the converter front side in plan view and a converter throat center.