Quotables
"It is my heart-warmed and world-embracing Christmas hope and aspiration that all of us, the high, the low, the rich, the poor, the admired, the despised, the loved, the hated, the civilized, the savage (every man and brother of us all throughout the whole earth), may eventually be gathered together in a heaven of everlasting rest and peace and bliss, except the inventor of the telephone. "
Mark Twain ; Christmas greetings, 1890
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| Number | Title | Issue Date |
| 7682556 | Degassing of molten alloys with the assistance of ultrasonic vibration An apparatus and method are disclosed in which ultrasonic vibration is used to assist the degassing of molten metals or metal alloys thereby reducing gas content in the molten metals or alloys. High-intensity ultrasonic vibration is applied to a radiator that create... | 03/23/2010 |
| 7611663 | Industrial furnace and associated jet element The present invention relates to an industrial furnace for smelting metals, in particular nonferrous metals, and the respective nozzle element. ... | 11/03/2009 |
| 7276205 | Injection device and process for the injection of a fluid The invention relates to an injection device for the reliable introduction of a fluid into a metallurgical vessel having a refractory lining, the device being removably insertable in the lining; comprising a refractory first body (2) and a refractory second b... | 10/02/2007 |
| 6471912 | Rotor for the treatment of a fluid such as a metal melt A device in connection with a rotor (9) for the treatment of a liquid such as molten metal in a reactor (20) or similar structure. Gas and/or particulate material is supplied to the liquid, preferably via the rotor shaft (8) and through openings (18) from... | 10/29/2002 |
| 6446565 | Blast tuyere for shaft furnaces, in particular blast furnaces or hot-blast cupola furnaces A blast tuyere for shaft furnaces, includes a conical hollow main body having inner and outer casings defining a hollow space and interconnected by a tuyere nose. The outer casing is formed by a single-piece base body terminating smoothly in the tuyere no... | 09/10/2002 |
| 6379416 | Method and device for melt-treating incineration residue containing salts A component adjustor is added to an incineration residue containing salts to adjust a component ratio determined by the equation (Ca+Mg)/(Si+Al) in the range of 0.7 to 2.0. The incineration residue having the adjusted component ratio is charged to a melti... | 04/30/2002 |
| 6083296 | Method of producing metals and metal alloys A method and an apparatus for producing metals and metal alloys from metal oxides in a metallurgical vessel containing a molten bath having a metal layer and a slag layer is disclosed. The method is characterized by injecting a carrier gas and a solid car... | 07/04/2000 |
| 5968448 | Process and apparatus for producing molten pig iron A process for producing molten pig iron uses direct reduction of iron ore in a pre-reduction stage followed by a final reduction stage. In the pre-reduction stage iron ore is pre-reduced in a melting cyclone by means of a reducing process gas originating ... | 10/19/1999 |
| 5788159 | Method and apparatus for applying compositions A circular, surface-coating application of sprayable composition or mortar is achieved through a rotatable spray head with at least one lateral discharge opening. The composition or mortar is distributed as uniformly and over as large a surface area as po... | 08/04/1998 |
| 5667201 | Smelt spout for a recovery furance A smelt spout for a chemical recovery furnace comprises a trough of U-shaped profile fabricated as a casting in a nickel-chromium alloy containing a minor amount of niobium. A system incorporating the spout includes a cooling arrangement which delivers co... | 09/16/1997 |
| 5573724 | Ladle port assembly A ladle port assembly having a longer use life than a conventional porous plug includes an inner refractory member constructed from a high-fired alumina-containing refractory material, a middle refractory member surrounding the inner member and also const... | 11/12/1996 |
| 5533713 | Gas and/or solid material blasting device for a metallurgical vessel and method of manufacture thereof A blasting device to be used to introduce a gas and/or a solid material into a metallurgical vessel such as a convertor includes a plurality of blasting tubes arranged in a tube bundle, with ends of the tubes being inserted into respective receiving bores... | 07/09/1996 |
| 5454852 | Converter for the production of steel A converter for the production of steel from solid and/or liquid charging substances, such as pig iron and/or scrap and/or sponge iron, includes a refractorily lined refining vessel, a refining device for feeding oxygen or an oxygen-containing gas, and a ... | 10/03/1995 |
| 5398915 | Apparatus for continuous copper smelting There is disclosed an apparatus for smelting copper which includes a smelting furnace, a separating furnace, a converting furnace, and launders connecting these furnaces in series. In the smelting furnace, copper concentrate is melted and oxidized to prod... | 03/21/1995 |
| 5299785 | Gas purging plug for electric-arc furnaces and the corresponding electric-arc furnace The present invention pertains to a gas purging plug with integrated electrode for use in electric-arc furnaces.... | 04/05/1994 |
| 5211743 | Treatment of a melt with a gas and means therefor An arrangement for use when treating a melt, particularly a metal melt (2) in a converter (1) with gas, for the purpose of intensifying and rendering effective the contact between gas and melt and to produce effective admixture of the gas with the melt. T... | 05/18/1993 |
| 5201941 | Process for introducing additive substances which are capable of flow into a metallurgical vessel and a vessel for that process For the metallurgical treatment of a molten metal bath (1) in a metallurgical smelting and refining vessel (3), additive substances (43) which are capable of flow, in particular lime, are supplied in a granular to dust state, at least during a part of the... | 04/13/1993 |
| 5131636 | Lance holder for a compact lance The lance holder for an oxygen lance has a substantially increased reliability and safety, since a valve disk slidable against the force of a valve disk spring by insertion of the lance is provided in a retaining body between the slag run back safety devi... | 07/21/1992 |
| 4991825 | Injection device An injection device for introducing gases into metallurgical vessels includes a gas sink with a plurality of gas-carrying ducts and formed as a refractory frustum, a metal layer enclosing an outer generated surface of the gas sink and its base area, a gas... | 02/12/1991 |
| 4957542 | Process for treating liquid steels by injecting gas through the ladle bottom A process for the in-ladle treatment of liquid steels by injecting gas through the ladle bottom. The process comprises injecting at least one inert gas from locations which are distributed over the ladle bottom in such a way as to form at the surface of t... | 09/18/1990 |
| 4944496 | Apparatus for injecting gas into high temperature liquids, e.g. molten metals An injection nozzle for installation in the wall of a vessel for introducing gas into a liquid in the vessel. The nozzle comprises a body pierced by a passage which is terminated at the discharge end of the nozzle by a gas-porous or foraminous passage-clo... | 07/31/1990 |
| 4938459 | Mechanically sealed tuyere block A tuyere block assembly design permitting intermittent flow of gas into the bottom of a metallurgical vessel is provided having the tuyere block assembly open to permit flow of gas into the vessel and closes when the flow of gas into the furnace is not de... | 07/03/1990 |
| 4930757 | Tuyere for metallurgical vessels A tuyere for a metallurgical vessel comprising a solid metal tuyere body with a central gas feed bore. The gas feed bore contains at least one gas feed pipe. The tuyere body also has at least one water-cooled bore between the outer wall of the tuyere body... | 06/05/1990 |
| 4925166 | Gas flushing brick for metallurgical vessels In a flushing brick for metallurgical vessels comprising a shaped brick having a gas distributor connected to a gas supply pipe and gas passages the gas passages lead out of a wind box and are surrounded in a gas-tight manner by a protective tube that kee... | 05/15/1990 |
| 4911414 | Sealing injection apparatus for injecting substances into molten metals An injection apparatus for use in injecting substances into molten metal contained in a vessel including a nozzle block having at least one initially closed injection passage and a lance movable in the passage and advanceable to open the passage for injec... | 03/27/1990 |
| 4905971 | Refractory ceramic sink A refractory ceramic sink includes a frusto-conically shaped internal ceramic element having upper and lower end surfaces and an outer surface extending between the upper and lower end surfaces, and an external ceramic element encompassing the internal ce... | 03/06/1990 |
| 4884787 | Refractory, ceramic, shaped member A refractory, ceramic, shaped member or nozzle. The shaped member is provided with a passage, preferably in the center. To prevent molten material that might penetrate the passage from penetrating therethrough and solidifying at such a later point, a cool... | 12/05/1989 |
| 4877449 | Vertical shaft melting furnace and method of melting A vertical shaft melting furnace wherein meltable solids are charged to the upper region of a bed supported only by a fluid cooled support grid having openings smaller than the average diameter of the charged solids wherein submerged combustion is maintai... | 10/31/1989 |
| 4858894 | Stirring block with unidirectional grain structure having improved erosion resistance A device for introducing gas into a mass of molten metal in a vessel for creating a stirring action therein has a rammed or pressed apertured block of relatively great density and a grain structure perpendicular to the exposed working surface of the block... | 08/22/1989 |
| 4840354 | Stirring brick with shaped gas volume control openings A device for introducing gas into a mass of molten metal from a location in the side wall of a vessel for creating a stirring action therein has a refractory body having a plurality of passageways transversely thereof, the refractory body being positioned... | 06/20/1989 |
| 4824080 | Apparatus for introducing gas into molten metal baths An apparatus for introducing gas into a molten metal bath contained within a refractory-lined vessel by the distribution of gas bubbles in the metal bath. The distribution is disbursed and covers a wide areas and mixing within the bath is improved. This i... | 04/25/1989 |
| 4808220 | Process for the preparation of refined ferromanganese The invention relates to a process for the preparation of low-carbon and low-silicon ferromanganese (refined ferromanganese) by blowing with pure oxygen in a converter ferromanganese of high carbon content (high-carbon ferromanganese) produced in a blast ... | 02/28/1989 |
| 4802655 | Apparatus for injecting substances into liquids For injecting substances into a liquid e.g. molten metal, a nozzle block is mounted in the wall of a vessel containing the liquid. Initially, an injection passage extending through the block is closed by a plug to prevent ingress of liquid, and only when ... | 02/07/1989 |
| 4790516 | Reactor for iron making A reactor for iron making having an upper gas blowing nozzle, a lower gas blowing nozzle, and an iron scrap charging inlet. A vertical shaft is installed directly above the inlet at the top part of the reactor. A mechanism is provided in the lower end of ... | 12/13/1988 |
| 4789141 | Nozzles for injecting substances into liquids An injection nozzle (10) is installed in the wall (13) of a liquid containment vessel (14) and comprises an assembly of refractory component bodies (18, 19, 20): injection passages (22) for receiving longitudinally movable lances (11) are provided in the ... | 12/06/1988 |
| 4783059 | Tuyere for treating molten metal A tuyere for treating molten metal in a vessel in which bottom stirring gas blowing is desired has a tubular body member having a mounting flange inwardly of one end thereof by which the tuyere is positioned in the vessel through an opening in a side wall... | 11/08/1988 |
| 4768756 | Converter for preparing steel and a gas supply device for such a converter A converter for preparing steel having a refractory lining including a wear lining is provided at its bottom with a plurality of gas supply devices for supply of stirring gas to the molten bath in the converter. Each gas supply device has a generally vert... | 09/06/1988 |
| 4754951 | Tuyere assembly and positioning method A tuyere assembly and positioning method comprising mechanically separate or separable inner and outer tubes, the inner tube(s) being removeable and replaceable and the outer tube being extendable into a vessel and held in place by a flared end abutting t... | 07/05/1988 |
| 4744545 | Apparatus for degassing molten metal Apparatus includes a chamber with an inner and outer sidewall wherein fluxing gas inlets are provided on the inner sidewall and a space is provided between the inner and outer sidewall with a heating element and an air space between the heating element an... | 05/17/1988 |
| 4744546 | Flushing arrangement for a metallurgical vessel A flushing arrangement for a metallurgical vessel having a metal outer shell, a bottom lined with a permanent lining, on which adjacently arranged refractory bricks are applied as working lining, and pipes inserted in recesses of the bricks at predetermin... | 05/17/1988 |
