EQUIPMENT FOR BLOWING GAS AND SCOURING AGENT

摘要

PURPOSE:To simplify the analysis and the assembly by forming a hardly sinterable packed layer, burying a gas blowing tube in the layer and connecting one end part of said tube in freely openable and closable manner with a channel which opens and closes by turning a plug punched with a connecting pore for introduction of gas. CONSTITUTION:A packed layer 14 of hardly sinterable particles is formed in a nozzle pore 2, which is punched in a molten metal vessel 1, and a gas blowing tube 4 is buried in a packed layer 14. One end part the gas blowing tube 4 is connected in freely openable and closable manner with a channel 12 opened and closed by the turning of a plug 3 punched with a connecting pore for introduction of gas. Furthermore, the channel 12 is contacted with an external gas supply source or a channel from an external gas supply source and scouring agent supply source.