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| Number | Title | Issue Date |
| 5626753 | System and method for the transport of lime A filter for use in a coupling disposed between first and second tubes which convey lime from a movable carrier to a processing pot in a steel mill. The filter has a plurality of openings sized and positioned to allow passage of lime and exclude contamina... | 05/06/1997 |
| 5618491 | Studs for boilers and other high temperature applications Disclosed is a stud for a boiler or other high temperature application, such as a furnace. The stud is made of an iron aluminum alloy which comprises about 81 to 91 wt. % iron, about 8 to 13 wt. % aluminum, about 0.01 to 0.3 wt. % carbon, and zero to abou... | 04/08/1997 |
| 5610935 | Method for manufacturing a base anode for a metallurgical vessel In a method for manufacturing a base anode (10) having a multiplicity of adjacently arranged metal elements (11) for a metallurgical vessel (1), the intermediate spaces (14) between the metal elements (11) are filled with refractory material (16), the ref... | 03/11/1997 |
| 5499798 | Refractory retaining apparatus An improvement is provided in apparatus for retaining refractory in a metallurgical vessel. The improvement includes a wedge-shaped metal ring extending along the inner periphery of a metal shell of the vessel adjacent to an opening at one end thereof and... | 03/19/1996 |
| 5227120 | Method for protecting austenitic stainless steels from solvent attack by molten magnesium by forming crucible and crucible A crucible for containing molten mixtures of magnesium and magnesium chloride comprises an outer relatively thick base layer of austenitic stainless steel covered inside with a relatively thin layer of mild carbon steel. The stainless layer provides stren... | 07/13/1993 |
| 5084312 | Molten metal containment vessel with rare earth oxysulfide protective coating thereon and method of making same An improved molten metal containment vessel is disclosed in which wetting of the vessel's inner wall surfaces by molten metal is inhibited by coating at least the inner surfaces of the containment vessel with one or more rare earth oxysulfide or rare eart... | 01/28/1992 |
| 4900603 | Refractory, heat insulating articles The invention relates to preformed, shaped, refractory, heat-insulating articles for use in an expendable sidewall lining of a molten metal handling vessel. The lining has a face at part of which is exposed a zone of matter of high resistance to erosion b... | 02/13/1990 |
| 4709905 | Casing assembly for injecting material into a metallurgical vessel A casing assembly includes a nozzle brick to form part of a wall of a metallurgical vessel. The nozzle brick has therethrough a conical opening defined by a conical inner surface. A casing to be inserted into the conical opening has a truncated conical sh... | 12/01/1987 |
| 4676486 | Reaction vessel for smelting iron ore and method Attack of the refractory containment by the slag in an ironmaking or steelmaking vessel is prevented by means providing a continuously replenished thin film of liquid iron or steel between the slag and the refractory.... | 06/30/1987 |
| 4647022 | Refractory insulation mounting system and insulated structures A structure such as a wall of a high temperature furnace door is lined with fibrous refractory insulation material which has structural fastening devices embedded therein or interleaved between planks thereof. In one embodiment, plank-like pieces of fibro... | 03/03/1987 |
| 4526353 | Safety device for the cover of a metallurgical vessel A safety device for protecting a cover used for closing a vessel in which molten metal undergoes metallurgical treatments is presented. The device is used in conjunction with the type of cover which rests on or hangs over the edge of the vessel. The devic... | 07/02/1985 |
| 4403768 | Bottom of metallurgical container and process of forming the same In a process for forming the bottom of a metallurgical container, especially the bottom of a converter for refining pig iron, of the type which comprises a metallic base, at least one layer of refractory material superimposed on the metallic base, a first... | 09/13/1983 |
| 4386765 | Composite moulded refractory articles A sliding gate valve slide plate in a can has an integral collector nozzle and is formed as two conjoined refractory concrete mouldings with a cup or trough shaped metal foil lying in the joint therebetween. The foil is oxidisable in service to form a bon... | 06/07/1983 |
| 4383570 | Method of pouring steel into a container A method of pouring molten steel into a container having a bottom made of material subject to damage by the falling stream includes providing a light weight tin free steel mat made from a plurality of thin sheets each having closely spaced holes therein o... | 05/17/1983 |
| 4376808 | Lining unit The present invention relates to lining units used to protect surfaces exposed to intensive wear by solids, gases and liquids. The lining unit is a metallic shell formed with a pipe of rectangular cross section, containing a metallic plate and a wear-resistant... | 03/15/1983 |
| 4316603 | Stockline armor construction for blast furnaces A stockline armor construction for blast furnaces in which the armor plates are anchored positively to the inside face of the furnace shell. The anchoring means includes brackets fixed to the shell to be engaged by tongues on the plates. The tongues have ... | 02/23/1982 |
| 4249894 | Blast furnace for heating granular material An improved blast furnace for heating granular materials is provided of the "CCR" type which includes two similar stacks disposed side by side, one of which heats the goods by direct current while the discharging gases escape from the other parallel unhea... | 02/10/1981 |
| 4196894 | Basic oxygen furnace and refractories therefor having improved thermal conductivity A steel refining furnace and refractories therefor having improved thermal conductivity may be achieved by the use of refractory bricks containing 31/2 to 51/2% residual carbon and having metal plates and the like associated therewith externally and, in m... | 04/08/1980 |
| 4094496 | Enclosure for steel converting apparatus An open-topped vessel for converting molten ferrous metal to steel is pivotal about a horizontal axis and has bottom tuyeres for blowing oxygen or other gases upwardly through molten metal. An enclosure at least partially surrounds the vessel and cooperat... | 06/13/1978 |
