Metal refining method and apparatus
AssigneeBritish Steel Corporation
InventorsGene D. Spenceley, Robert Baker, Roger A. Page
Life of this patent
Estimating the term…
Abstract
Various forms of method and apparatus are described for the manufacture of steel wherein solid carbonaceous materials are injected below the surface of a melt during the introduction of oxygen to raise the energy level within the melt. Solid iron-bearing materials may also be introduced to the melt and a continuous tapping process is described wherein the iron-bearing and carbonaceous materials are delivered continuously to the melt.
Claims17
A method of raising the energy level of molten metal in a metallurgical vessel in the course of manufacturing steel which comprises injecting solid carbonaceous material into said molten metal below the surface thereof and introducing an oxidizing gas into the vessel to react with the carbonaceous material to liberate heat.
A method of raising the energy level of a molten metal in a metallurgical vessel in a steel manufacturing process which comprises the steps of:
- injecting solid carbonaceous material selected from the group consisting of particulate coal, coke, graphite or mixtures thereof into said molten metal below the surface thereof;
- and introducing an oxidizing gas into said vessel through the base or side of said vessel.
Dependencies are inferred from the claim text.