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| Number | Title | Issue Date |
| 7374716 | Metallurgical oven and a material basket for a metallurgical oven A metallurgical furnace has a cover (20) for a vessel (10) and a charging device (30) for charging material that will be melted in the vessel. The charging device has a rotatable retaining means (31) and a projection (40) is provid... | 05/20/2008 |
| 7282171 | Method for oxy-fuel combustion An oxygen fueled combustion system includes a furnace having at least one burner, an oxygen supply for supplying oxygen having a predetermined purity, and a carbon based fuel supply for supplying a carbon based fuel. The oxygen and the carbon based fuel are fed into... | 10/16/2007 |
| 7235210 | Metal melting furnace There is provided a novel construction of a metal melting furnace that can preheat and melt the entire material more efficiently and that can facilitate operations for removing oxides deposited on the surface around the melting burner and the inside thereof and thus... | 06/26/2007 |
| 7060220 | Metal melting furnace In a metal melting furnace, a separation wall 60 is provided between an inclined hearth 30 and a molten metal reservoir 35 to define a molten metal processing portion 65. The separation wall is provided with a connecting passage 61... | 06/13/2006 |
| 6893607 | Elevated discharge gas lift bubble pump and furnace for use therewith A metal melting closed furnace which includes a main chamber, a circulation well connected to the main chamber by a communications passageway and a vortex well having a exit outlet for molten metal into the main chamber. A cover is emplaced over the vortex well. An ... | 05/17/2005 |
| 6855188 | Multichambered steelmaking apparatus and method of steelmaking The invention pertains to the art of ferrous metallurgy, and more particularly, to a multichambered steelmaking apparatus and to a method of steelmaking. A multichambered steelmaking apparatus contains smelting chambers communicating with each other through their up... | 02/15/2005 |
| 6797228 | Oxy-fueled aluminum recovery method An oxygen fueled combustion system includes a furnace having at least one burner, an oxygen supply for supplying oxygen having a predetermined purity, and a carbon based fuel supply for supplying a carbon based fuel. The oxygen and the carbon based fuel are fed into... | 09/28/2004 |
| 6696013 | Metallurgical furnace with scrap metal preheater and dispenser A Preheater-Steelmaking Furnace and closed loop Process System for semi-continuous melting of integrally preheated recycled or virgin ferrous charge, by using highly energy efficient combustion process of natural gas combusted by oxygen as the main heat s... | 02/24/2004 |
| 6596220 | Method for oxy-fueled combustion An oxygen fueled combustion system includes a furnace having at least one burner, an oxygen supply for supplying oxygen having a predetermined purity, and a carbon based fuel supply for supplying a carbon based fuel. The oxygen and the carbon based fuel a... | 07/22/2003 |
| 6555049 | Steel manufacturing facility and method A steel manufacturing facility and method are disclosed which utilize ground mobile equipment, as opposed to overhead cranes. At least one material container is loaded with a steel making product and picked up with a transport vehicle that is movable thro... | 04/29/2003 |
| 6436337 | Oxy-fuel combustion system and uses therefor An oxygen fueled combustion system includes a furnace having at least one burner, an oxygen supply for supplying oxygen having a predetermined purity, and a carbon based fuel supply for supplying a carbon based fuel. The oxygen and the carbon based fuel a... | 08/20/2002 |
| 6357264 | Apparatus for melting molten material This apparatus is a furnace for heating molten material which employs oxygen-fuel burner assemblies. Preferably, the assemblies are submerged in the molten material. They are water cooled top down units with burner nozzles being off-set from the supply co... | 03/19/2002 |
| 6311629 | Process and device for gasification of waste Gasification of waste is performed in a gasifier having a gasification space (1) and a liquid rotating slag bath (2). The slag bath (2) is preferably caused to rotate by tangentially injecting gasification medium and/or at least a portion of the waste via... | 11/06/2001 |
| 6274081 | Smelting installation with an electric-arc furnace This invention concerns a smelting installation with an electric-arc furnace in which the roof of the oven vessel is constructed out of two units (7, 8) which are separated by an aperture (38) and can be moved independently of one another relative to the ... | 08/14/2001 |
| 6120286 | Vaporizer boat for metal vaporizing The invention concerns a resistance-heated vaporizer boat for vaporizing metal. According to the invention, a reduced temperature is generated in the edge region, i.e., along the longitudinal edge of the vaporizer boat, such that there is only a very slig... | 09/19/2000 |
| 6090180 | Cupola emission control system and method A cupola emission control system is provided that includes both improved physical emission control equipment and improved controls for operating such equipment. The physical emission control improvements include an orifice ring of restricted diameter abov... | 07/18/2000 |
| 6074455 | Aluminum scrap melting process and apparatus A method of melting metal scrap in a molten melting media, the method comprising (a) providing a source of molten melting media in a furnace, the melting media in the furnace having a first surface level; (b) providing a first melting bay in fluid communi... | 06/13/2000 |
| 6068812 | Inert gas bubble-actuated molten metal pump with gas-diffusion grid An inert gas bubble-actuated molten metal pump, for the movement of molten metal in a molten-metal bath, which obviates the necessity of a heatproof and flameproof cover to counteract splashing and spattering at the surface of the molten metal bath above ... | 05/30/2000 |
| 6056914 | Apparatus for charging a shaft-type cupola furnace An apparatus for charging a shaft-type cupola furnace and located between an upper stack and a lower furnace having a preselected inside diameter. An inverted conical trough is provided for receiving charge materials delivered to the furnace. The conical ... | 05/02/2000 |
| 6039786 | Process for melting a metal charge in a rotary furnace and rotary furnace for implementing such a process Process for melting a metal charge in a rotary furnace equipped with at least one oxygen burner, comprising the steps of: (i) adding between 1.5 and 9% of a charge of solid fuel to the metal charge to form a combined charge; and (ii) injecting at least one jet... | 03/21/2000 |
| 6010552 | Apparatus for the process of melting and purification of aluminum, copper, brass, lead and bronze alloys The present apparatus is comprised by two magnetic induction sets, one for melting of the raw material and the second for purification of molten metal; each set comprises a pot or crucible (1, 1'), an electromagnetic device, a filter (11) and a power supp... | 01/04/2000 |
| 5984999 | Apparatus having gas-actuated pump and charge well and method of melting metal therewith charge a well of a metal-melting furnace The charge well of a metal melting furnace is provided with an internal cavity having a circular cross section when viewed from the top, preferably a cavity of cylindrical or conical configuration, and with a peripheral exit port located tangentially with... | 11/16/1999 |
| 5980818 | Melt tank assembly A melt tank is disclosed having a plurality of cartridges wherein each cartridge is adapted to hold at least one molded part. An annular tank is provided having an open top while a substantially circular plate is coaxially rotatably mounted to the top of ... | 11/09/1999 |
| 5928602 | Metal waste processing facility A facility to process metal wastes is provided. The facility includes an inclined heat-insulated casing with a door and a cover, which can be displaced and removed. The inner surface of the casing is provided with removable sheets which form the inner fac... | 07/27/1999 |
| 5908488 | Magnesium melting furnace and method for melting magnesium The magnesium melting furnace (1) has a plurality of chambers. The material to be melted is fed into a melting chamber (2) through a charging chute (20), one end of which terminates under the surface of the melting bath. The melt is slowly transferred int... | 06/01/1999 |
| 5890889 | Shaft furnace An improved hearth section for a shaft furnace may comprise a plurality of splines mounted to the side wall of the hearth section in spaced-apart circumferential positions so that each of the splines extends radially inward from the side-wall and into the... | 04/06/1999 |
| 5888458 | Melting furnace of metals and melting method thereof Disclosed is a melting furnace of metals and melting method thereof, which can control the rate at which a metallic raw material is introduced from a preheating section to a melting section within an optimum range and which can achieve efficient melting o... | 03/30/1999 |
| 5846480 | Aluminum remelting furnace, in particular for melting aluminum scrap to be recycled An aluminum remelting furnace for recycling scrap. In order to prevent atmospheric dispersion of toxic substances from the combustion of aluminum scrap contaminants, the furnace includes a loading chamber positioned on the upper wall of the furnace which ... | 12/08/1998 |
| 5785923 | Apparatus for continuous feed material melting The apparatus of the present invention is a melter housing having a pretreat chamber heated with a feed material heater that is partially isolated from a melter chamber. The method of the present invention has the steps of introducing feed material into a... | 07/28/1998 |
| 5759232 | Method of charging materials into cupola A method of charging an iron scrap melting cupola with iron scrap and coke enables the iron scrap to be melted with high energy efficiency. The charging pipe feed is set at a level "h" which meets the condition of h ࣘ (r-r') tan θ, and iron scrap of a ... | 06/02/1998 |
| 5397109 | Reduced emissions metal melting furnace A vertical shaft furnace for melting non-ferrous metals, such as copper, aluminum, and their alloys, includes metal blocks disposed in an annular wall just beneath the charging section of the furnace. Preheated air is forced into the furnace shaft through... | 03/14/1995 |
| 5238484 | Plant for the production of molten metals and method A plant for the production of molten metals, includes a melting vessel and a metallurgical vessel receiving the melt from the melting vessel for aftertreating the melt and closed by a lid. The melting vessel has a tap opening for the melt provided on the ... | 08/24/1993 |
| 5224985 | Process and apparatus for the melting of metals in the cupola furnace operated without coke The improved method of melting a metal, especially cast iron, in a cokeless cupola furnace includes the step of injecting at least one case product quality improving and stabilizing substance into a space between the grate and the burners. The quality imp... | 07/06/1993 |
| 5139236 | Melt facility for continuous upcaster A furnace system particularly adapted for use with a continuous upcaster. Instead of employing discrete furnaces, tundishes, ladles and the like, the instant unitary system employs a furnace, a feeding mechanism for directly introducing material into the ... | 08/18/1992 |
| 5120027 | Heater arrangement for aluminum refining systems A support plate, together with the shell of an aluminum holding and/or refining vessel, in combination with a refractory sheet positioned on the inner wall of a graphite block in which a heating element assembly is positioned, is used to hold and seal the... | 06/09/1992 |
| 5078368 | Gas fired melting furnace A high temperature gas fired heat transfer system ideally suited for melting metals is disclosed. The system generates a heated, reducing furnace atmosphere which prevents formation of metal oxides when the metal is melted. A unique arrangement is provide... | 01/07/1992 |
| 5064174 | Apparatus for production of energy and iron materials, including steel A process and arrangement are provided for the efficient generation of energy from coal, while at the same time providing for a relatively inexpensive step in processing of iron or steel, and the extraction of valuable materials such as oils from coal. An... | 11/12/1991 |
| 5026030 | Melting and holding furnace A melting and holding furnace comprising a preheating and melting chamber defining a preheating tower section in an upper position and a melting section in a lower position, a holding chamber communicating with the melting chamber, and a well communicatin... | 06/25/1991 |
| 5015178 | Melting furnace A melting furnace has a supporting structure of thermostable steel, and an internal shell of common steel, serving as a contact area for the refractory lining of the furnace.... | 05/14/1991 |
| 4989841 | Metal continuously melting and retaining furnace A metal continuously melting and retaining furnace including a retaining chamber which retains therein a molten metal fed from a melting chamber, a ladling chamber from which the molten metal is ladled out, and a treating chamber between the retaining and... | 02/05/1991 |
