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WO/2016/084028A1 |
A direct current electric arc furnace (1) for metallurgical plant comprises an electrode (3) having a base (4) and a plurality of metal bars (5) fixed to the base (4); each of said metal bars (5) comprises at least a first portion (12) a...
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WO/2016/071391A1 |
An electric arc furnace (EAF) including a raw material container, a set of electrodes, a set of electrical potential transformers, and a reference signal verification device. The set of electrodes are configured to be controllably extend...
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WO/2016/059248A1 |
The invention relates to a method of reducing plasticizer migration in hoses and vessels made from PVC. It also relates to a hose or vessel having an inner lumen which has been treated by the method of the invention. It also relates to t...
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WO/2016/050627A1 |
This invention concerns power supplies suitable for electric arc gas heaters such a plasma torches. It more particularly relates to the dimensioning of the inductor in the switched-mode DC to DC converter used for feeding the torch. The ...
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WO/2016/008864A1 |
The invention relates to an electric arc furnace which comprises a safety device (3) and an earthed peripheral device. The invention is characterised in that an earth cable (4) is provided to the peripheral device of said arc furnace (2)...
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WO/2015/190494A1 |
Provided is a graphite structure with which it is possible to suppress, to a minimum, adverse effects such as breaking when a join site is subjected to bending stress. For a graphite structure (20A), the distance between an inner periphe...
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WO/2015/149980A1 |
The invention relates to an apparatus and a method for dynamically regulating an electric arc furnace (1) that is electrically connected to a power supply system and that has at least one system phase that is used to apply to a furnace e...
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WO/2015/101714A1 |
The invention relates to a method and an arrangement for measurement of electrode paste in an electrode column of an electric arc furnace. The electrode column (10) comprises a steel casing (11) surrounding the electrode paste and said e...
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WO/2015/096915A1 |
The present invention relates to an ignition apparatus and an ignition method for electric arc furnaces, at least two electrodes each generating an arc by means of one phase of an alternating current and one associated phase of an altern...
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WO/2015/079024A1 |
The invention relates to a device (1) and a method for adjusting an electrode (2) of a metallurgical furnace. The device (1) concerned comprises an upper, first clamping ring (4) and a lower, second clamping ring (6), wherein the clampin...
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WO/2015/071312A1 |
This tool has an attachment head (22) holder (70) extending along a longitudinal axis (B-B'); - a mould bottom (72) carried by the holder (70), the mould bottom (72) defining an axial through-orifice for the attachment head (22); - an en...
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WO/2015/062956A1 |
The invention relates to a method for operating an electric arc furnace (10), which comprises at least one electrode (18), which is made of graphite and which has a passage opening (32), wherein in the method an arc (20) is generated bet...
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WO/2015/062968A1 |
The invention relates to a method for operating an electric arc furnace (10) comprising at least one electrode (18) having a through-opening (32), wherein in said method an electric arc (20) is generated between the at least one electrod...
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WO/2015/028706A1 |
The invention relates to a pressure ring assembly for contact shoes in an electrode system of an electric arc furnace provided with at least one electrode column assembly. The electrode column assembly comprises a contact shoe ring forme...
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WO/2015/028709A1 |
The invention relates to an arrangement for sealing a bellows cylinder in a pressure block of a pressure ring assembly of an electrode system (1) of an electric arc furnace (6). The bellows cylinder (60) is located in a cavity (61) forme...
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WO/2015/024822A1 |
The present invention relates to a carbon-containing nipple having at least one nipple thread, in particular for carbon-containing electrodes, comprising at least one inlet (also called first inlet) in the at least one nipple thread, whi...
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WO/2014/126575A9 |
The present invention relates generally to compositions for use in biological and chemical separations, as well as other applications. More specifically, the present invention relates to hybrid felts fabricated from electrospun nanofiber...
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WO/2015/000745A1 |
The invention relates to an electric arc furnace (2) and to a method for operating an electric arc furnace (2) comprising at least one electrode (4a, 4b, 4c) for generating an electric arc (6a, 6b, 6c), in which the desired value of the ...
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WO/2015/001180A1 |
An electrode slipping device comprises an upper holder (3) and a lower holder, both holders (3) containing one or more clamping shoes (5) and one or more clamping cylinders (6) in co-operation with the clamping shoes (5).The clamping sho...
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WO/2015/001179A1 |
A method and a system for monitoring clamping pressure exerted by a clamping cylinder to an electrode in an electrode slipping device which comprises an upper annular holderringand a lower annular holderring, each comprising at least one...
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WO/2014/190433A1 |
A heat treatment apparatus for heat treating an interior surface of a longitudinally extending cavity of a target structure has a processing head which comprises a longitudinally extending central support member and distal and proximal e...
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WO/2014/139402A1 |
Disclosed is a method for heating oil shale subsurface in-situ. The method may used to obtain shale oil and fuel gas from an underground oil shale layer in-situ, and may used to obtain fuel gas from underground coal bed in-situ. The meth...
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WO/2014/141217A1 |
The method for adjusting the impedance of one or more phases of a secondary circuit of an electric furnace, in order to limit the unbalance between the phases themselves comprises the transformer (31), a variable impedance secondary circ...
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WO/2014/131069A1 |
The invention relates to a holding device for a heating element and to a heater having at least one such holding device, wherein the holding device (2) is produced from a refractory metal or from an alloy on a refractory metal basis and ...
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WO/2014/118147A1 |
A contact plate intended to be brought into contact with the wall of an electrode of an electro-metallurgical furnace, comprising an internal channel having an inlet and at least one outlet which can be linked respectively to an external...
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WO/2014/096543A1 |
A sealing device (1) for sealing an annular gap (21, 22, 23) in connection with structures of a pyrometallurgical furnace (3) to isolate an inner atmosphere of the furnace from the atmosphere residing outside the furnace, for preventing ...
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WO/2014/096540A1 |
A method and sealing arrangement (22) for sealing of gaps (1) in a contact shoe ring (2). The sealing arrangement (22) comprises a refractory fabric (12) which is folded to a substantially U-form shape having a first branch portion (13) ...
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WO/2014/063176A1 |
The invention relates to a glass-melting electrode (2) with a cooling device and a cooling device for a glass-melting electrode, the glass-melting electrode (2) having an electrode body (4, 6) with a blind hole (8), and the cooling devic...
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WO/2014/060256A1 |
The invention relates to a device and a method for the process-based power control of an electric arc furnace (10). Several types of sensors (15, 16, 17) detect current operational parameters of the electric arc furnace (10) in accordanc...
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WO/2014/060262A1 |
The invention relates to a device and method for controlling an electric arc furnace (10) in the initial phase of a melting process. A sensor (16) for measuring the actual current and a sensor (15) for measuring the actual flowing curren...
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WO/2014/060258A1 |
The invention relates to a device and a method for reducing network reactions when an electric arc furnace (10) is in operation. Said electric arc (10) comprises three branches (7) respectively comprising an electrode (4). A sensor (15) ...
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WO/2014/062063A1 |
The publication relates to a method for melting solid metal, such as scrap aluminum, where the solid material is placed in a closed, insulated container (12) of a material having refractory qualities, the container (12) being provided wi...
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WO/2014/049780A1 |
In order to allow a conventional UV irradiator to be used as a heating device (4) by simply replacing a light collecting mirror thereof, and easily achieve size reduction and reduced costs compared with a constitution using a light sourc...
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WO/2014/044548A1 |
The invention relates to a device and a method for changing at least one electrode of a melt-metallurgical vessel which has a receiving device for molten metal and a vessel cover with one opening per electrode for covering the receiving ...
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WO/2014/037614A1 |
An apparatus (100) comprises at least one optical cable (104), a detector (106) and a processing unit (108). An end of an optical cable (104) is placed inside the electric arc furnace (10) for collecting light from the furnace (10). The ...
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WO/2014/016151A1 |
The invention relates to a method and a device (1) for replenishing an electrode (2) of a metallurgical furnace having a furnace cover (14), said electrode having a sensitive length section (21). The device (1) comprises a first and a se...
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WO/2013/186022A1 |
The present invention relates to a method for determining the consumption of electrode material during the operation of an electric furnace, particularly an arc furnace for producing steel, wherein the method comprises determining the we...
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WO/2013/181675A1 |
In a submerged arc furnace deviation of a current path is detected by identifying a variation of a parameter of a magnetic field generated by current flow in the furnace.
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WO/2013/152937A1 |
In a method for operating an arc furnace (30) and a smelting system operated according to said method, at least one measurement value (M1) of a measurement variable characterizing the operating state of each of a plurality of system comp...
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WO/2013/154971A1 |
An electrode case used to make a self-baking electrode that is consumed in a reducing arc furnace and the electrode made therefrom is described. The electrode case comprises an outer sleeve and a plurality of fins. The outer sleeve is di...
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WO/2013/084650A1 |
A plasma device which is provided with: a reaction container to which a metal starting material is supplied; a plasma torch which generates plasma between itself and the metal starting material within the reaction container, thereby evap...
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WO/2013/075999A1 |
The invention relates to an electric arc furnace and a method for operating same. The electric arc furnace comprises a lower vessel and a lid 120 placed on said lower vessel. The lower vessel has a tapping device for tapping molten metal...
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WO/2013/078368A2 |
Systems and methods for controlling a plasma edge region are described. One of the systems includes a top electrode and a bottom electrode. The system also includes an upper electrode extension and a lower electrode extension. At least a...
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WO/2013/069334A1 |
Provided is a self-baking electrode upper-end detection apparatus with which the upper end of a self-baking electrode can be detected automatically, accurately, and safely. The self-baking electrode upper-end detection apparatus (40) is ...
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WO/2013/063830A1 |
Disclosed is a network transmission based digital electric arc furnace electrode control method, comprising: Step 1: using an electric signal acquisition unit to acquire an electric signal from an electrode short network system, and outp...
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WO/2013/020042A1 |
A Plasma Arc Reformer for creating a useful fuel, such as Methanol, using any of Methane, Municipal Solid Waste, farm or forest waste, coal orchar rock from oil shale production, petrochemical hydrocarbons, (any carbon containing charge)...
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WO/2013/010891A1 |
For a method for operating an electric arc furnace (2) operated with an alternating voltage and for a melting plant having an electric arc furnace (2) operated according to said method, a structure-borne sound signal (S) occurring on a w...
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WO/2013/001198A1 |
According to the invention, the cable (1) for a power supply system includes a hollow central core (2) around which conductive elements (3) are stranded, the assembly of the strands consisting of the conductive elements (3) and the centr...
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WO/2012/143814A1 |
Light management system for an outdoor lighting network (OLN) having lighting units, the system including a central control apparatus (40); lighting unit control apparatus (50); and a communication system (60). The central control appara...
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WO/2012/104323A1 |
The invention relates to a device for controlling the electrode of an electric arc reduction furnace, comprising a vertically oriented electrode (4), which can be inserted into a vessel (1) of the reduction furnace from above, wherein th...
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