Patent ID: 7648674

Claim:
A device for treatment of a liquid metal flow comprising a treatment ladle, said ladle comprising: a single treatment compartment, liquid metal inlet means and outlet means, connection means to at least one liquid metal input trough, at least one liquid metal output trough, and means for injecting a treatment gas into the liquid metal arranged in at least one sidewall of a ladle, wherein said liquid metal inlet and outlet means each comprise at least one orifice positioned so as to be entirely underneath a level of the liquid metal during the treatment, in order to prevent entry of ambient air into said compartment during treatment, and further wherein said treatment compartment comprises an upstream part and a downstream part, and said injection means is located in said upstream part, and wherein said compartment further comprises at least one first filtration means located in said downstream part for degassing and filtering the liquid metal; said injecting and filtration means being located in close proximity to one another and within the same single treatment compartment.