TREATMENT DEVICE OF MOLTEN METAL WITH REFINING SLAG Russian patent published in 2013 - IPC C21C1/00 

FIELD: metallurgy.

SUBSTANCE: device includes a vessel open from below and partially submerged into molten metal, in which a refractory partition is installed; the latter forms a refining chamber located below the partition and a slag catcher chamber located above the partition. In the partition there is a hole closed from above with a plug and having a hole with section of 0.01÷0.25 S, where S - cross section area of the refining chamber, for extrusion through it of waste slag to the slag catcher chamber. Refractory partition can be equipped with electrically conductive element to increase the slag fluidity by electric heating.

EFFECT: obtaining steel of increased purity owing to increasing the refining degree of molten steel.

2 cl, 2 dwg