|
Match
|
Document |
Document Title |
|
|
7767136 |
Apparatus for the combustion of gas exiting from a furnace, for the preheating of scraps entering the furnace itself and related process
Apparatus for the combustion of gas exiting from an electric arc furnace where the heat of combustion is used for the preheating of scraps entering the furnace wherein the apparatus has an...
|
|
|
6818175 |
System for producing steel
The invention relates to a device for producing steel. The invention device comprises a container (1, 101, 201). The metal used is molten, blown and refined in said container which comprises an...
|
|
|
6693948 |
Apparatus for arc-melting cold iron source and method thereof
The present invention provides an arc-melting apparatus which attains extremely high efficiency by preheating scraps using exhaust gas from the melting chamber. The arc-melting apparatus needs for...
|
|
|
6660219 |
Method and device for emptying metallurgic melting vessels by tipping
The invention relates to the emptying of melting vessels (1) by tipping. According to the invention, the melting vessel (1) is placed on column-shaped bases (6). During the tipping process, the...
|
|
|
6438154 |
Method and apparatus for recovering metal values from liquid slag an baghouse dust of an electric arc furnace
An apparatus and method for processing liquid slag and baghouse dust from a steelmaking furnace such as an EAF to recover valuable metals from the slag and dust includes a treatment vessel having a...
|
|
|
6393043 |
Tiltable arc furnace
In a tiltable arc furnace in which a furnace vessel (2) and a portal (4) for an electrode lifting and pivoting apparatus are arranged on a platform (1 and 3) of a furnace cradle which is tiltable...
|
|
|
6269112 |
Electric arc furnace for continuous charging with ferrous materials and semicontinuous tapping of molten steel
This invention is an electric arc furnace that can be continuously charged with ferrous materials, that can continuously melt the incoming charged materials, and that can semicontinuously tap...
|
|
|
6104743 |
Electric arc furnace cooling apparatus
In an electric arc furnace cooling apparatus in which cooling water is made to flow into a plurality of water-cooled panels provided around side walls of a furnace body of an electric arc furnace...
|
|
|
6038246 |
Method and apparatus for operating a furnace
A direct current electric arc furnace for melting or heating raw material or molten material. The furnace includes a refractory lined vessel for holding raw or molten material. The vessel has at...
|
|
|
5987051 |
Arc furnace fume collection system and method
The present invention provides a system and method for collecting fumes from an arc furnace of the type typically used in metal foundries. The system provides an electrode hood with extended sides...
|
|
|
5905752 |
ARC furnace fume collection system and method
The present invention provides a system and method for collecting fumes from an arc furnace of the type typically used in metal foundries. The system provides an electrode hood with extended sides...
|
|
|
5898726 |
Preheater for arc furnaces
To provide a pre-heating apparatus capable of improving the installation reliability of a raw material holding gate of a pre-heating apparatus, reducing an installation cost and reducing melting...
|
|
|
5850413 |
Device to support and swing the hearth in an electric furnace
Device to support and swing the hearth in an electric furnace, whether it be the type operating on direct or alternate current, the furnace being able to be of the channel type, EBT with the hearth...
|
|
|
5812587 |
Apparatus and method for the supply of molten metal
The present invention is concerned with an apparatus for supply of molten metal including a holding furnace pivotable about an axis having a metal chamber for holding molten metal, an outlet for...
|
|
|
5535235 |
Melting furnace having preheating vessel
A melting furnace including preheating vessels for preheating raw material, and a melting furnace body having a tilting device and a heating device for heating the preheated raw material. A furnace...
|
|
|
5524119 |
Taphole design and pouring method
An electric arc furnace or convertor is provided with a taphole collector nozzle which is provided, for at least a portion of its length, with an offset bore enlargement. The furnace may be a...
|
|
|
5490162 |
Process and device for the continuous treatment of silicon
The invention relates to a process for the continuous treatment of silicon in which a slag in a pivotable low-shaft furnace (1) with a discharge pipe (4) reaching the bottom of the furnace tank is...
|
|
|
5462259 |
Tilting device for a D.C. arc furnace and process for emptying the furnace
A tilting device for a direct current arc furnace and a process are disclosed for completely emptying the furnace while the furnace is operated with a continuous scrap supply through a lateral...
|
|
|
5153894 |
Smelting plant with removable shaft-like charging material preheater
This invention is directed to a smelting plant with shaft-like charging material preheater. In a smelting plant with an electric arc furnace (1) and a charging material preheater (2) of shaft...
|
|
|
5054033 |
Tiltable arc furnace
A tiltable arc furnace vessel is provided with a projecting, bay-like extension having a discharge opening closable from the outside only by a pivotable plate; the bay-like extension has a bottom...
|
|
|
4965813 |
Combustion aiding apparatus for steel-making electric-arc-furnace
A combustion aiding apparatus for a steel-making electric-arc-furnace characterized by installing a combustion aiding burner on a balcony having an inspection-and-working opening through which to...
|
|
|
4870655 |
Apparatus for recovery of metallics and non-metallics from spent catalysts
An electric arc furnace includes a crucible having a metal shell for recovering precious metals from spent material. The shell includes a metal tap hole and a slag door positioned above and...
|
|
|
4779287 |
Tiltable metallurgical furnace vessel
In a tiltable metallurgical furnace vessel having a completely closed lateral protrusion with a closable discharge opening on its underside, simplified furnace structure is achieved by configuring...
|
|
|
4733853 |
Molten metal taphole design to improve yield and cleanliness
A taphole structure for BOF vessels that will prevent slag entrapment through vortexing and allow most of the metal to be tapped free of slag. This is accomplished through the use of a refractory...
|
|
|
4726033 |
Process to improve electric arc furnace steelmaking by bottom gas injection
A process to improve electric arc furnace steelmaking. The efficiency increase is due to the metal-slag stirring that is produced by bottom gas injection through gas permeable ceramic elements. The...
|
|
|
4641319 |
Method for quantitative discharge of molten material
In a method of intermittently charging a molten principal raw material and any supplementary material as needed to provide a specified raw material formulation into a melting furnace and...
|
|
|
4639927 |
Continuous melt electric furnace with continuous discharge
An electric melting furnace is provided with an exit comprising an overflow dam and a downwardly extending unmolten-substances blocking plate placed inwardly of the overflow dam. The exit is...
|
|
|
4543124 |
Apparatus for continuous steelmaking
Apparatus for the continuous making of steel in an electric steelmaking furnace, having a charge material preheater, continuous charging means, and means for removing refined steel without removing...
|
|
|
4523747 |
Discharging molten metal from a smelting furnace
Slag-free discharge of molten metal from a smelting furnace is assured either through slow tilting through a small angular range in case the outlet is located in a lateral bay extension of the...
|
|
|
4468781 |
Tiltable arc furnace
A tiltable arc furnace with a platform (5) supported on rolling-contact cradles (10) is designed so that the furnace shell (2) resting on a mobile carriage (6) can be moved approximately one...
|
|
|
4468782 |
Method and device for operating a DC arc furnace
The present invention relates to a method and a device for operating a DC arc furnace with a bottom in the furnace vat consisting of rammed compound (8) or bricks with metallic elements (7) which...
|
|
|
4466104 |
Metallurgical plant
A metallurgical plant is provided with a plurality of electric arc furnace vessels arranged so that the centers of the vessels lie along the points of an imaginary circle. A lid having the...
|
|
|
4349909 |
Process for casting fused refractory oxides having high melting points
The present invention provides a process and apparatus for the production of refractory oxide materials having high fusion points. By high fusion points is meant melting points greater than 2400° ...
|
|
|
4308415 |
Process for refining a molten metal and an apparatus therefor
Refining method of molten metal which employs a refining apparatus provided with a tiltable refining vessel, a tuyere formed therein for blowing inert gas and/or flux or further sometimes additive...
|
|
|
4304954 |
Apparatus for casting fused refractory oxides having high melting points
The present invention provides a process and apparatus for the production of refractory oxide materials having high fusion points. By high fusion points is meant melting points greater than 2400° ...
|
|
|
4263469 |
Roller cradle of an inherently stable furnace
A roller cradle of an inherently stable furnace comprises a contact surface whose rest portion has a curvature which is less than that of the remaining contact surface portions. The rest portion is...
|
|
|
4255126 |
Furnace tilting device
A method and apparatus for tilting a furnace supported by rolling rockers is disclosed. The apparatus includes at least one hydraulic cylinder connected to a spout side of the furnace, and at least...
|
|
|
4217462 |
Rotary furnace for the fusion of mineral bearing substances, apparatus and method
Furnace apparatus and method, for the continuous electric heating or fusion of particulate mineral-bearing substances, wherein a cylindrical furnace housing is adapted to trunnion bearing, the...
|
|
|
4181812 |
Iron oxide melt reduction furnace and method
An iron oxide melt reduction furnace has a hearth with a raised periphery forming an annular shelf, the hearth holding a carbonaceous iron melt up to a level forming a thin layer on the shelf. The...
|
|
|
4124200 |
Converter for refining liquid metals, with heating and blowing in means
A converter for refining a liquid metal bath using simultaneous heating and blowing in comprises a metal vessel internally lined with refractory material, having an upwardly open mouth and having a...
|
|
|
4123617 |
Electric arc furnace
An electric arc furnace has a body mounted on a pivotable platform and electrodes which extend through a furnace cover. A gantry supports the cover and electrode and is mounted on a rail for...
|
|
|
4094495 |
Method and apparatus for the production of quality steels
A method for producing steels within a very close analysis tolerance in which the raw materials are melted down in a first vessel, the melt is then tapped into a second vessel in which deslagging...
|
|
|
4065634 |
Skull furnace for melting highly reactive metals under vacuum or neutral atmosphere
A skull furnace is provided with an expansion vessel filled with neutral gas and communicating with a cooling agent space made in the wall and bottom of a crucible. Used as a coolant is liquid...
|
|
|
4031309 |
Arrangement for producing steel
An electric furnace has an inlet opening for introduction of starting materials in the upper region thereof. A pre-melting vessel is arranged above the furnace and has a discharge opening above and...
|
|
|
3999001 |
Arc furnace fumes control system
An exhaust system for use with an electric arc melting furnace having a crucible and an upwardly directed mouth covered by a roof, and a device coupled to the roof for projecting it upwardly along...
|
|
|
3984613 |
Electric furnace with tiltable and removable hearth
A direct arc electric furnace having a tiltable base for pouring molten metal from the furnace. A refractory lined hearth supported by the base is pivotal with respect to the base for tilting to a...
|
|
|
3980801 |
Tilt and swing lock mechanism for electric furnace
A mechanical tamper-resistant interconnecting locking apparatus is connected to a top charge tiltable direct arc electric furnace which includes a refractory lined furnace shell and a removable...
|
|
|
3835231 |
TILTING FURNACE
A tilting furnace has non-tiltable electrodes through its roof. The bottom portion of the furnace has supporting rolls arranged on both sides of a vertical line through the center of gravity of the...
|
|
|
3783169 |
METHOD AND APPARATUS FOR THE CONTINUOUS FLUIDIZING OF STEEL
An electric arc furnace having a plurality of in-line electrodes are separated by baffle plates. Scrap metal or prereduced iron ore is placed in the furnace and a thick high-temperature slag covers...
|
|
|
3745224 |
ELECTRIC FURNACE INSTALLATION
The roof of a top-charge direct arc melting furnace is supported from the superstructure of a gantry frame structure and, if desired, with the furnace back plate assembly serving as the pillar or...
|