Back to results
US 11,543,182 B2Granted
Furnace assembly for a metal-making process
AssigneesABB Schweiz AG, Tenova S.P.A.
InventorsLidong Teng, Anders Lehman, Hongliang Yang, Andrea Grasselli, Silvio Maria Reali
Life of this patent
Estimating the term…
Abstract
A furnace assembly for a metal-making process, including: an electric arc furnace configured for flat bath operation and having a bottom, and an electromagnetic stirrer configured to be arranged underneath the bottom of the electric arc furnace to enable stirring of molten metal in the electric arc furnace.
Claims17
A furnace assembly for a metal-making process, comprising:
- an electric arc furnace configured for flat bath operation and having a bottom, and
- an electromagnetic stirrer configured to be arranged underneath the bottom of the electric arc furnace to enable stirring of molten metal in the electric arc furnace,
- wherein a metal-charging region is located off-center with respect to a center point of the bottom of the electric arc furnace, and
- wherein the electromagnetic stirrer includes coils configured to generate a traveling magnetic field in a first direction along a stirring direction axis, wherein the electromagnetic stirrer is configured to be arranged relative to a central plane extending through the center of the electric arc furnace and through a tapping hole or spout of the electric arc furnace so that the stirring direction axis is at an angle relative to the central plane;
- wherein the coils are connected to a respective electric phase of an AC current supply, and wherein the electromagnetic stirrer is fed with a poly-phase AC current.
2 more elements
Dependencies are inferred from the claim text.