| 摘要 |
PURPOSE: An apparatus for bottom blowing of molten steel is provided to maintain the soundness of the apparatus and improve yield ratio of metal by preventing the blockage of micro pipes. CONSTITUTION: An apparatus for bottom blowing of molten steel comprises a gas supply part(200) for supplying bottom blowing gas, bottom blowing nozzles(120) which comprise micro pipes and are installed on the bottom of a converter to supply gas into the converter, gas supply pipes which are provided for the respective bottom blowing nozzles and include a gas supply valve and a gas flow controller(220), and bypass pipes which include an opening valve for control of gas supply and detour gas from the gas supply part directly to the bottom blowing nozzles without passing through the gas supply pipe.
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