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| Number | Title | Issue Date |
| 6767382 | Aluminium processing apparatus and process for separating aluminium from a mixture of aluminium and aluminium dross An apparatus for separating molten aluminium from a mixture of molten aluminium and aluminium dross includes a table for supporting an insulated crucible containing the mixture of molten aluminium and aluminium dross. A rotatable frame supports a plurality of tines ... | 07/27/2004 |
| 6676890 | Device for producing spherical balls Spherical balls, notably microballs of welding alloys, are produced by passing a melted material through vibrating orifices of a granulation pot, in order to form droplets which solidify when falling, by gravity, into a cooling tower filled with an inert ... | 01/13/2004 |
| 6395221 | Tilting rotary furnace system for recovery of non-ferrous metals from scrap or dross and method of operation A furnace system for recovering a non-ferrous metal from a charge of material containing the metal. The furnace system having a furnace chamber having walls defining a refractory chamber, the refractory chamber receiving the charge of material and the met... | 05/28/2002 |
| 6379609 | Process for controlling the amount of metal metered The invention relates to a process for controlling casting parameters and in particular to the control of the metering of the molten metal in a casting chamber of a vacuum die-casting machine. Measurement devices connected to a computer determine the volu... | 04/30/2002 |
| 5948137 | Scrap metal measuring and weighing process and apparatus An on-line system for measuring the composition of scrap metal, including a loader with a load sensor having a motion compensator linked to a bulk material analyzer such as a prompt gamma-ray neutron activation analyzer. The grade of scrap used to prepare... | 09/07/1999 |
| 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 |
| 5879618 | Apparatus for treating fine ore An apparatus for treating fine ore in which fine ore is dried by aid of a hot drying gas flowing around the ore particles. After having flown around the ore particles, the drying gas is purified while releasing entrained dust ore particles. The dust ore p... | 03/09/1999 |
| 5527017 | Apparatus for dissolving zinc by means of acid-containing liquid electrolytes An apparatus for dissolving zinc by means of acid-containing liquid electrolytes includes a container for zinc particles to be dissolved, inlet and outlet devices for continuously admitting and discharging fresh or zinc-enriched electrolytes, and collecti... | 06/18/1996 |
| 5421560 | Slag control apparatus for molten metal vessels A slag control shape is releasably mounted on a cover for a molten metal vessel. An actuator is connected to a slag control shape release member to move the release member from a first position engaged with the slag control shape to a second position dise... | 06/06/1995 |
| 5330555 | Process and apparatus for manufacturing low-gas and pore-free aluminum casting alloys The invention relates to a process and apparatus for manufacturing low-gas and pore-free aluminum casting alloys by vacuum degasification and densification of the melt. Contact between the aluminum melt and the atmospheric humidity of the alloying process... | 07/19/1994 |
| 5217674 | Drive for automatic lance changing devices The invention relates to a drive for an automatic lance-changing device, such as is used in the top-blowing steel-making process. Such a lance-changing device comprises two lance-receiving hooks pivotable about a horizontal axis of rotation, means for the... | 06/08/1993 |
| 5196050 | Control method of and apparatus for material charging at a top of a blast furnace In a control method of material dumping at top of a blast furnace, in which material stored in a furnace top bunker is dumped through a flow rate control gate into a blast furnace in a specified time, value of initial material weight before the transfer s... | 03/23/1993 |
| 5180538 | Device and method for feeding molten metal for the pressure casting of metal products Device and method for feeding molten metal for the pressure casting of metal products. The device for feeding molten metal to a mould 1 of a continuous pressure-casting installation comprises a vessel 2 equipped with a cover 7 carrying a spout 3, the said... | 01/19/1993 |
| 5131634 | Sublimer-reactor system with weighing means A sublimer-reactor system for reducing Group IVB metals with magnesium has a sublimer spaced from a reactor with a gas flow control valve in piping interconnecting them. A load cell weighs the feed in the sublimer and outputs a signal to the control valve... | 07/21/1992 |
| 5110365 | Control of furnace cleaning for reflective ash using infrared imaging A method and apparatus for monitoring reflective ash deposited on a furnace wall to be cleaned, comprises an infrared video camera or other mechanism for taking an infrared image of the furnace wall. The image must include an area to be cleaned by the wat... | 05/05/1992 |
| 5096502 | Advanced water lance control system based on peak furnace wall emissivity A method and apparatus for controlling the operation of a water lance for water cleaning a furnace wall comprises a sensor or calculation equipment to derive the furnace wall emissivity and equipment that compares the emissivity to a programmed low setpoi... | 03/17/1992 |
| 5094695 | Furnace cleanliness monitor for high reflectivity ash A method and apparatus of initiating and terminating the cleaning of a furnace wall to remove reflective ash which been deposited thereon, comprises a video or infrared monitor which monitors the light being reflected from the furnace wall or the ratio of... | 03/10/1992 |
| 5020778 | Apparatus for stirring molten metal The invention provides a new stirring apparatus for stirring the liquid metal contents of a furnace, particularly the shallow furnaces used in the processing of aluminum and its alloys. The apparatus consists a reservoir separate from the furnace of relat... | 06/04/1991 |
| 4923177 | Continuous preheat scrap charging system and method A continuous preheat charging method including the steps of transferring scrap from a receiving point to a discharge point, preheating scrap adjacent the discharge point prior to delivery of preheated scrap to one of a pair of melting furnaces, and altern... | 05/08/1990 |
| 4893791 | Automatic lance changeover device An automatic lance changeover device is presented wherein a radially guided ring is axially vertically displaceable by two lifting spindle systems provided on each side of the ring and bears pivotable hooks for receiving the lance and for pressing the lat... | 01/16/1990 |
| 4798367 | Apparatus of cooling steel strip in continuous heat treating line A steel strip which has been cooled through a cooling zone in a continuous heat treating line is finally cooled by immersing in cooling water in a cooling tank under the controlling in accordance with the following formula:- ##EQU1## With such c... | 01/17/1989 |
| 4787604 | Slag retention on discharge of a ladle Molten metal is discharged without slag from a ladle, vessel or the like having a closable bottom tap by weighing the vessel continuously and forming from the measuring values respective earlier and later average values as well as the difference thereof; ... | 11/29/1988 |
| 4738717 | Method for controlling the density of solidified aluminum An aluminum melt is processed by the injection of a sparging gas through a spinning nozzle into the melt in a preheat, conditioning and processing step sequence, with a predetermined proportion of hydrogen being employed with the sparging gas during the p... | 04/19/1988 |
| 4556535 | Production of aluminum-lithium alloy by continuous addition of lithium to molten aluminum stream A continuous process for forming aluminum-lithium alloys is disclosed which comprises continuously monitoring the ingot casting rate and continuously adding a measured and controlled amount of molten lithium beneath the surface of a molten aluminum stream... | 12/03/1985 |
| 4491475 | Constant rate briquette feeding system A method of charging relatively large briquettes of metal scrap to a melting system at a substantially constant feed rate is disclosed. The method comprises providing a pumping bay, a charging and melting bay, and a molten metal furnace from which molten ... | 01/01/1985 |
| 4445670 | Apparatus for controlling a pressure-type furnace for pouring molten ores A method and apparatus for controlling the pouring of molten metals in a pressure-type furnace is provided. The furnace includes a reservoir for storing the molten metal, a first passage for supplying the metal to the reservoir, and a second passage for s... | 05/01/1984 |
| 4412674 | High-temperature reduced iron production A reduced iron installation includes transportable container having a charge/discharge mouth section provided with a sealing valve and a plurality of support legs and is arranged for 180° rotation between a charge condition under a furnace to a discharge... | 11/01/1983 |
| 4375883 | System for recycling char in iron oxide reducing kilns A method and means for improving the efficiency of the process for directly reducing ore containing iron oxide in a rotary kiln using a solid carbonaceous reducing agent, such as coal, introduced from the ore feed and discharge ends of the kiln, as both f... | 03/08/1983 |
| 4356031 | Apparatus and method for controlling the recycle char circuit in a direct reduction process A method and means for maintaining optimum operation of the process for directly reducing iron oxides in a rotary kiln, using a solid carbonaceous reducing agent, such as coal fed at both the charge feed end and discharge end as the source of fuel and red... | 10/26/1982 |
| 4132452 | Slide-articulation bearing, in particular for tiltable converters A slide-articulation bearing for supporting a shaft, in particular for tiltable converters, has a circular-cylindrical sliding face forming a unit with the shaft, sliding elements held by a cage contacting the sliding face, and an outer race with a spheri... | 01/02/1979 |
| 4131668 | Iron ore pellet process control A method for controlling an iron ore pelletizing and pellet processing operation by evaluating the results of the on-stream analysis of the apparent specific gravity or apparent density distributions of the dry and fired pellet samples which permits the o... | 12/26/1978 |
| 4092053 | Bearing arrangement for a tilting trunnion of a metallurgical vessel A bearing arrangement for a tilting trunnion of a metallurgical vessel, in particular a converter in a steel making plant, has an inner race, an outer race, bearing bodies arranged therebetween, and at least one sensor device with a sensor pin. The sensor... | 05/30/1978 |
| 4088308 | System for controlling the flow of sinter to blast furnace A dead band and a feed forward control are part of a closed loop system for converting the batch flow of sinter into an accumulating hopper into a steady flow of sinter out of this hopper.... | 05/09/1978 |
| 4072302 | Tiltable metallurgical vessel arrangement A tiltable metallurgical vessel arrangement, in particular a converter for a steel making plant, has carrying trunnions, a fixed bearing, an expansion bearing, bearing housings for the bearings, and force measuring means resting on a supporting constructi... | 02/07/1978 |
| 4062415 | Method for weighing a vessel supported by shafts journaled in pressurized bearings The weight of a vessel having trunnion shafts supported by bearings fitted with pressure pads is determined as a function of the fluid pressure necessary to raise the shafts a constant distance and maintain the distance constant.... | 12/13/1977 |
| 4025060 | Molten metal pouring device A molten metal pouring device is disclosed, wherein there are provided two pairs of link mechanisms whose links are adapted to be moved in parallel relation to each other, so that, regardless of an inclined angle of a ladle, a molten metal-dropping locus ... | 05/24/1977 |
| 4023785 | Tiltable metallurgical converter arrangement A tiltable metallurgical converter arrangement, with a fixed bearing and an expansion bearing for the carrying trunnions, has bearing housings arranged on load cells that rest on a supporting construction designed as a sole plate. The bearing housings are... | 05/17/1977 |
| 3993293 | Automatic leaching system for hydro-metallurgical production of zinc An automatic leaching system for the hydrometallurgical production of zinc comprising a pH meter and means for detecting the feed rate of calcine. The pH meter is provided with means for automatically washing the electrodes thereof so as to be capable of ... | 11/23/1976 |
