Vesuvius Crucible Company

Francois-No&euml;l Richard

Jose Antonio Simoes

Hubert Abels

The invention relates to a set of refractory assemblies, which is capable of being used between an upstream container and a downstream container of a plant for transferring liquid metal, in particular steel, comprising: a tapping spout via which the metal flows from the upstream container into the downstream container, each refracotry assembly of the tapping spout having at least one surface forming a mating surface with a corresponding surface of an adjacent refractory assembly; a flow regulator for regulating the flow of liquid metal through the tapping spout; a shroud channel placed around the tapping spout near at least one mating surface between refractory assemblies and having an inlet capable of allowing the intake of a fluid; in which the shroud channel has an outlet capable of allowing the fluid to escape to the outside of the plant.

Refractory assemblies

The invention relates to a plant for transferring liquid metal, in particular steel, between an upstream container (,) and a downstream container (,), comprising: an upstream container (,); a tapping spout (,); a downstream container (,), a flow regulator (,) for regulating the flow of liquid metal through the tapping spout (,); a set of refractory assemblies (,) which are placed between the upstream container and the downstream container, delimiting the tapping spout (,) via which the liquid metal flows from the upstream container (,) into the downstream container (,), each refractory assembly of the tapping spout (,) having at least one mating surface (,) forming a joint with a corresponding surface of an adjacent refractory assembly; a shroud channel (,) placed around the tapping spout (,) near at least one mating surface (,) between refractory assemblies (,), this shroud channel having an inlet (,) capable of allowing the introduction of materials; in which plant means (,) are provided for introducing a sealing agent into the shroud channel (,).

Plant for transferring liquid metal, method of operation, and refractories

The invention concerns a tundish for continuous casting in a steel mill, equipped with at least one tube changer (,). The changer has a frame (,) mounted under the tundish (,), at least one fixed plate (,) and a tube (,), having a plate (,) at its upper part, means (,) for applying the plate (,) of the tube (,) against the fixed plate (,), their surface in contact forming a junction plane (,). The junction plane (,) is inclined at a nonzero angle &agr; with respect to the horizontal. The new tube (,) passes from the introduction position to the casting position and the worm tube from the casting position to the evacuation position by a sliding movement on the junction plane (,), following a trajectory at least partially nonrectilinear, the combination of the angle of inclination &agr; of the junction plane, dimensions of the tubes (,) and the trajectories of these latter being such that the tubes (,) avoid the casting mold (,) during a tube change.

Growing community of inventors

Nancy, France

Francois-Noël Richard

Growing community of inventors

Nancy, France

Francois-No&euml;l Richard

Francois-Noël Richard