| 摘要 |
This invention has the function of injecting gas and/or gas and powders into liquid metals using a refractory lance that is endowed with circular movement around its axis, using low values of pressure and sewage, which provides a better distribution and lower consumption of the powders, resulting in lower cost of the handled metal. The system consists of a refractory lance ( 7 ), which is endowed with a rotative junction ( 6 ), a motor-reducer ( 5 ) and a high-pressure hose ( 8 ).
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