Sill and door jamb assembly for electric arc furnace
AssigneeNorth American Refractories Co.
InventorLee A. Nosbisch
Life of this patent
Estimating the term…
Abstract
A sill and door jamb assembly providing an opening in an electric arc furnace, the sill and door jamb assembly having a sill block assembly and two jamb block assemblies. The sill block assembly having side-by-side sill blocks, each of the sill blocks being positioned side-by-side to form the sill block assembly and having an upper end and a lower end. The lower end of the sill block assembly is confined within a plurality of courses of the refractory bricks. Each jamb block assembly having a plurality of jamb blocks positioned side-by-side. Each of the jamb block assemblies having a lower end and an inner surface abutting the distal ends of the sill block assembly. The inner surfaces of the jamb block assemblies and the upper surface of the sill block assembly form the slag opening in the furnace.
Claims26
In an electric arc furnace having a shell comprised of side walls and a bottom and a refractory layer lining the bottom and side walls, said refractory layer including continuous courses of refractory bricks along the inner surface of said side walls of said shell, a slag opening, comprised of:
- a sill block assembly and two jamb block assemblies defining an opening;
- said sill block assembly comprised of side-by-side sill blocks, each of said sill blocks having an upper end with an upper surface, a lower end with a lower surface, and an inner surface facing the interior of said furnace, said sill blocks positioned side-by-side with the upper surfaces of said side-by-side sill blocks defining an upper surface of an upper end of said sill block assembly and the lower surfaces of said side-by-side sill blocks defining a lower surface of a lower end of said sill block assembly, said lower surfaces of said sill assembly resting on said continuous courses of refractory bricks along the inner surface of said side walls of said shell with said lower end of said sill block assembly disposed between a plurality of courses of said refractory bricks;
- and each of said jamb block assemblies comprised of a plurality of jamb blocks positioned side-by-side, each of said jamb block assemblies having a lower end supported on said continuous courses of refractory bricks, each of said jamb block assemblies having generally opposite-facing side surfaces, each of said side surfaces of a jamb block assembly being defined entirely by a side surface of an outermost jamb block, one of said side surfaces of a jamb block assembly abutting ends of a plurality of said continuous course of refractory bricks and another side of the jamb block assembly having a portion abutting said upper end of said sill block assembly and another portion extending above the upper surface of said sill block assembly wherein said another portion of said another side of said jamb block assembly and said upper surface of said sill block assembly form the entire side and bottom respectively of said slag opening in said furnace, said sill blocks and said jamb blocks being formed of a refractory material.
Dependencies are inferred from the claim text.