VACUUM DEGASSING APPARATUS FOR MOLTEN GLASS AND METHOD TO RISE VACUUM DEGASSING APPARATUS TEMPERATURE

摘要

Prior to operating a vacuum degassing apparatus for molten glass having a passageway for molten glass made of refractory material, the fuel must be combusted by a temperature raising burner and the burnt gas is passed through an exhaust pipe in communication with the upper end of the vacuum degassing vessel And exhausted.