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| Number | Title | Issue Date |
| 7497986 | Apparatus for incorporating a gaseous elemental component into a molten metal, and related articles, processes, and compositions An apparatus for incorporating an elemental component in gaseous form into a molten metal is described. The apparatus comprises a container for holding the molten metal; means for cooling the container; heating means for maintaining the metal in the molten state; an... | 03/03/2009 |
| 7381365 | Production of products from steel slags A method for treatment of metallurgical wastes i.e. slags, which are in liquid form by introducing water into the liquid slag thus causing it to cool at a slow rate so that the solidified slag contains a porous crystalline or utrified structure according to the rate... | 06/03/2008 |
| 6948650 | Dross removal and solder reclamation improvements When dross is removed from a molten-solder reservoir, a substantial amount of molten solder is often removed with the dross. This molten solder can be separated from the dross and returned to reservoir via a conduit for reuse. Additionally, a skimmer for removing th... | 09/27/2005 |
| 6803016 | Device for atomizing and granulating liquid slags In a device for atomizing and granulating liquid oxidic slags such as, e.g., converter slags, blast furnace slags or waste incineration slags, including a slag tundish having an outlet opening into which a height-adjustable lance for a propellant jet opens and to wh... | 10/12/2004 |
| 6558446 | In situ electroslag refining hot start An electroslag refining apparatus includes upper and lower integral crucibles, with the lower crucible having a drain. In situ hot start is effected by depositing in the lower crucible a pre-refined starter. The starter is melted in the lower crucible to ... | 05/06/2003 |
| 6436336 | Replaceable drain electroslag guide A melt guide includes a base plate having internal cooling channels and a center aperture extending vertically therethrough. A unitary drain bushing is removably mounted in the aperture and is readily replaceable after wear thereof.... | 08/20/2002 |
| 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 |
| 6375702 | Consumable electrode electroslag refining feed systems and methods A consumable electrode feed system for a refining system provides consumable electrodes to a refining system. The consumable electrode feed system comprises a side feed device that feeds consumable electrodes to a refining system in a first direction; a r... | 04/23/2002 |
| 6350293 | Bottom pour electroslag refining systems and methods A bottom pour electroslag refining system refines raw material into refined liquid metal. The bottom pour electroslag refining system comprises an electroslag refining crucible; a slag; a bottom pour structure that comprises an orifice from which refined ... | 02/26/2002 |
| 6318123 | Method for granulating a liquid slag bath and device for carrying out the method The method for granulating liquid slag melts, in particular blast furnace slag, in which the melt (2) is ejected into a cooling chamber via a slag tundish (1) and in which fluid under pressure, in particular compressed gas, vapor or pressurized water, is ... | 11/20/2001 |
| 6219372 | Guide tube structure for flux concentration A guide tube structure for flux concentration is provided. The discharge guide tube comprises a central orifice that extends from a source of metal to an outlet in the discharge guide tube for directing a stream of melt therethrough; a structure that gene... | 04/17/2001 |
| 6104742 | Electroslag apparatus and guide A melt guide is provided for enclosing a bottom of an electroslag refining crucible containing a melt of electroslag refined metal. The guide includes an upper plate sized to engage the crucible bottom for attachment thereto, and includes an upper orifice... | 08/15/2000 |
| 5992503 | Systems and methods for maintaining effective insulation between copper segments during electroslag refining process Systems and methods of electroslag refining of metal include the introduction of unrefined metal into an electroslag refining process in which the unrefined metal is first melted at the upper surface of the refining slag. The molten metal is refined as it... | 11/30/1999 |
| 5968230 | Method and furnace for disposal of steel-making waste, and operating method of the furnace A melting furnace for reforming steel-making slag so as to be available, for example, to roadbed ballast by mixing steel-making dust with the slag in molten states, which is provided with a fuel oxygen burner for melting the slag and the dust, a slag char... | 10/19/1999 |
| 5820814 | Method and apparatus for cooling and solidifying red-hot molten blast furnace slag The invention relates to the cooling of red-hot molten blast furnace slag. In this case in order that a substantial proportion of the heat content of the red-hot molten blast furnace slag can be recovered this is introduced together with coal or fuel cont... | 10/13/1998 |
| 5810066 | Systems and methods for controlling the dimensions of a cold finger apparatus in electroslag refining process A system and method of electroslag refining of metal is taught. The system and method includes the introduction of unrefined metal into an electroslag refining process in which the unrefined metal is first melted at the upper surface of the refining slag.... | 09/22/1998 |
| 5809057 | Electroslag apparatus and guide A melt guide is provided for enclosing a bottom of an electroslag refining crucible containing a melt of electroslag refined metal. A base plate is sized to have a perimeter to engage the crucible bottom for attachment thereto. The base plate includes an ... | 09/15/1998 |
| 5769151 | Methods for controlling the superheat of the metal exiting the CIG apparatus in an electroslag refining process Methods for controlling the superheat of the stream of molten metal from an electroslag refining apparatus is taught. The methods include the introduction of unrefined metal into an electroslag refining process apparatus in which the unrefined metal is fi... | 06/23/1998 |
| 5724669 | Metal decontamination process and systems for accomplishing same The present invention provides for methods for on-line monitoring of a molten process phase to determine the extent of extraction of radioactive species from a waste metal contaminated with the radioactive species. The waste metal is mixed with an inorgan... | 03/03/1998 |
| 5683653 | Systems for recycling overspray powder during spray forming A system for the recycling of overspray powder during spray forming is provided. The system involves providing a refining vessel to contain an electroslag refining layer floating on a layer of molten refined metal. An ingot of unrefined metal is lowered i... | 11/04/1997 |
| 5332197 | Electroslag refining or titanium to achieve low nitrogen A method for the electroslag refining of titanium base alloy is provided. The method involves providing a refining vessel to contain an electroslag refining layer floating on a layer of molten refined metal. An ingot of unrefined titanium base alloy havin... | 07/26/1994 |
| 5310165 | Atomization of electroslag refined metal A method of atomization of refined metal is taught. The method starts with the introduction of unrefined metal into an electroslag refining process in which the unrefined metal is first melted at the upper surface of the refining slag. The molten metal in... | 05/10/1994 |
| 5255900 | Method and a device for processing hot, liquid slags A method for processing hot, liquid slag includes the steps of: conveying the slag to be processed to an upper region of a granular material forming a fluidized bed that has a temperature below the solidification temperature of the slag; cooling the slag ... | 10/26/1993 |
| 5192487 | Apparatus for treating zinc concentrates A method and apparatus for treating zinc concentrates in order to recover zinc. The method includes an oxidizing and smelting stage (10) and, subsequent to the smelting stage, a fuming stage (20) in which the zinc-oxide-containing slag formed in the smelt... | 03/09/1993 |
| 5160532 | Direct processing of electroslag refined metal A method for the electroslag refining of metal is provided. The method involves providing a refining vessel to contain an electroslag refining layer floating on a layer of molten refined metal. An ingot of unrefined metal is lowered into the vessel into c... | 11/03/1992 |
| 4978107 | Apparatus for producing foamed blast furnace slag To permit a continuous production of foamed blast furnace slag, a revolving conveyor is provided, which is continuously supplied with a stream of slag from a slag feeder in a trough which comprises a bottom and side walls rising from the bottom. Adjacent ... | 12/18/1990 |
| 4913734 | Method for preparing ferrocarbon intermediate product for use in steel manufacture and furnace for realization thereof The hereinproposed method and furnace provide for preliminary building up of melt in a melting pot (10) of a rectangular shape in the horizontal section, delivery of an oxygen-containing gas (3) into the melt below its surface level through tuyeres (13) w... | 04/03/1990 |
| 4637591 | Dross cooler and processor The invention provides dross treatment apparatus comprising a drum rotatable about a horizontal axis with means to feed dross to the inside of the drum where it is cooled and broken by tumbling and then removed from the other end of the drum for separatio... | 01/20/1987 |
| 4604136 | Method and an apparatus for subdivision of and heat recovery from a liquid slag The method in accordance with the invention comprises a rolling of the liquid slag between at least two cooling rolls of metal, preferably steel, the temperature of and the distance between the rolls being controlled such that a cohesive slag slab is obta... | 08/05/1986 |
| 4540163 | Press for recovering metal from dross A power driven press for recovering aluminum from aluminum dross is disclosed. The press has a receptacle for containing dross. The receptacle has at least one inclined sidewall and at least one passageway extending through its bottom. The passageway is s... | 09/10/1985 |
| 4484730 | Device for leaching copper from slags Method of and apparatus for leaching copper from slags by the use of a device comprising at least two cells separated by partitions and connected to each other by means of through-holes provided at the bottom part of the partitions, a slag charging hole, ... | 11/27/1984 |
| 4420304 | Apparatus for manufacturing rapidly cooled solidified slag An apparatus for manufacturing a rapidly cooled solidified slag, which comprises: a pair of cooling drums, the peripheral surfaces of said pair of cooling drums being in contact with each other and rotating in directions opposite to each other at the same... | 12/13/1983 |
| 4406666 | Device for the gasification of carbon by means of a molten metal bath A device for the gasification of carbon containing material to obtain the continuous production of gas, essentially a mixture of carbon monoxide and hydrogen, by using the molten metal bath process is provided. The carbon material, oxidizing agents, and s... | 09/27/1983 |
| 4373907 | Apparatus for manufacturing rapidly cooled solidified slag An improved apparatus for manufacturing a rapidly cooled solidified slag, the improvement relating to the use of pairs of weirs having an annular shape and a hollow portion therein; each of said pair of weirs being fixed to each edge of the peripheral sur... | 02/15/1983 |
| 4362504 | Apparatus for manufacturing a rapidly cooled solidified gas having rotating cooling drum An apparatus for manufacturing a rapidly cooled solidified slag, which comprises: at least one rotating cooling drum rotating around a horizontal center axis thereof, said cooling drum being cooled by a cooling medium, and having an outer peripheral surfa... | 12/07/1982 |
| 4330264 | Apparatus for manufacturing vitreous slag An apparatus for manufacturing a vitreous slag, which comprises: a pair of cooling drums, the peripheral surfaces of said pair of cooling drums being in contact with each other, and said pair of cooling drums rotating in directions opposite to each other ... | 05/18/1982 |
| 4294433 | Pyrometallurgical method and furnace for processing heavy nonferrous metal raw materials A method for processing heavy nonferrous metal raw materials by heating and melting said raw materials in a molten slag with the formation of a heterogeneous melt consisting of a sulfide and an oxide phases. The melt is bubbled oxidized by injecting a gas... | 10/13/1981 |
| 4208041 | Metallurgical apparatus A metallurgical apparatus; air is continuously blown into a mixture of agglomerates of lead concentrates and carbonaceous fuel in a shaft furnace. The resulting slag is delivered from the shaft furnace into a settling tank to which the slag continuously f... | 06/17/1980 |
| 4166609 | Device for detecting surface level of scum in scum removing apparatus In a scum removing apparatus including a suction source, a suction pipe having one end communicating with the suction source and the other free end positioned above the surface of scum to suck the scum and apply water to the sucked scum in the vicinity of... | 09/04/1979 |
| 4121810 | Aluminium dross treatment apparatus An aluminium/dross separator comprising a container or drum having one or more mixer blades mounted therein, drive means being provided to produce relative rotary movement of the container and blades characterized in that the drive means are positioned be... | 10/24/1978 |
