EP3804464A1 - Selbstbackende elektrode - Google Patents
Selbstbackende elektrodeInfo
- Publication number
- EP3804464A1 EP3804464A1 EP19727045.7A EP19727045A EP3804464A1 EP 3804464 A1 EP3804464 A1 EP 3804464A1 EP 19727045 A EP19727045 A EP 19727045A EP 3804464 A1 EP3804464 A1 EP 3804464A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- loop
- zone
- tube
- electrode
- loops
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B7/00—Heating by electric discharge
- H05B7/02—Details
- H05B7/10—Mountings, supports, terminals or arrangements for feeding or guiding electrodes
- H05B7/109—Feeding arrangements
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B7/00—Heating by electric discharge
- H05B7/02—Details
- H05B7/06—Electrodes
- H05B7/08—Electrodes non-consumable
- H05B7/085—Electrodes non-consumable mainly consisting of carbon
- H05B7/09—Self-baking electrodes, e.g. Söderberg type electrodes
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B7/00—Heating by electric discharge
- H05B7/02—Details
- H05B7/10—Mountings, supports, terminals or arrangements for feeding or guiding electrodes
- H05B7/107—Mountings, supports, terminals or arrangements for feeding or guiding electrodes specially adapted for self-baking electrodes
Definitions
- the invention relates to a device for a self-baking electrode and a method for operating this device.
- Soderbergelektrode self-baking or self-calcining electrodes are to be understood with the following technical principle: An electrode mass (lumpy and solid at room temperature), comprising carbon support such as anthracite, petroleum coke, graphite and a coal tar melt which melts by electrically supplied energy and process heat at 1 20 - 200 ° C and forms a liquid to pasty, uncoked mass. Above 500 ° C and above, the electrode mass changes into the solid, ie coked, state, and its electrical resistance decreases.
- the electrode composition is at temperatures of about 2000 ° C in egg nem graphitized state.
- this electrode technology is used in electric arc furnaces, for example in the reduction of ferroalloys.
- the Söderbergelektrode for smelting reduction furnaces for the production of silicon comprises a cylindrical housing in the form of a sheet metal jacket, wherein within the sheet metal jacket, a continuously extendable graphite electrode is guided, which is correspondingly smaller, ie, has a smaller diameter than the metal jacket.
- the sheet metal jacket is continuously filled with electrode material, for example in the form of briquettes. crowded.
- the graphite electrode whose main function is the holding of the Söderberg mass, can be moved within the metal jacket in the vertical direction up and down. As a result of the downward movement of the graphite electrode, the electrode mass is moved within the sheet metal jacket.
- the graphite electrode is continuously extended by joining together individual graphite electrode pieces.
- the region in which a graphite electrode piece adjoins and is connected to a further electrode electrode piece is referred to as a nipple zone.
- the so-called replenishment and lengthening of the graphite electrode prolongs that part of the electrode which is consumed due to the reduction process (so-called electrode burn-up).
- the energy input from the Elekt rodenmasse the baked and electrically conductive electrode is produced results, on the one hand from the process heat of the furnace and the other from the current passage, which is introduced via contact jaws in the jacket.
- composite technology As problematic at the Söderbergelektrode with graphite electrode in the core but has ever proven the high thermal conductivity of graphite. The heat transfer within the graphite electrode leads to a large temperature gradient between the electrode surface and the center of the electrode.
- Object of the present invention is to solve at least one known from the prior art disadvantage.
- the device according to the invention for a self-baking electrode wherein the Elekt has at least three zones, namely a first zone with unverkokter carbon-containing material, a second zone, which adjoins the first zone in which the carbonaceous mass is present in a pasty to liquid form and a third zone, which adjoins the second zone in which the carbonaceous mass is present in a concave manner, comprises a vertically (y) raisable and lowerable tube and an extendible egg-shaped element for absorbing tensile forces.
- Eialteelement is an extendable rigid element, such as a rod or a verlän gerbares flexible element, such as a rope. Both elements consist at least partially of a temperature-resistant material with a temperature resistance of at least 1000 ° C. The material used is, for example, a high-temperature steel or mate rials based on carbon fiber used. At least the first and the second Zo ne of the electrode are surrounded by a cylindrical housing. The tube runs partially inside the cylindrical housing, passing through the first and second zones and ends above the third zone. The holding element extends partially within the
- a first end of the retaining element is detachably connectable to a fastening element, a second end of the retaining element opens into the third zone and is anchored there.
- the pipe serves to exert shear or pressure forces on the carbon-containing mass from. It can be raised and lowered in the vertical direction. In this way, the carbonaceous mass can be moved relative to the cylindrical housing. In this process one speaks of the Nachemper.
- the tube has for this purpose corresponding tel on which allow this vertical movement.
- These means are connected to the structural system structure surrounding the device according to the invention.
- the means are, for example, two, seen in the vertical direction, against oppositely arranged clamping rings which are connected by a Nachsetzhydraulik example, Verstellzylinder together.
- the first clamping ring is called the upper clamping ring and the second clamping ring, which is seen in the vertical direction, below the first clamping ring, the so-called lower clamping ring.
- the tube runs inside these two clamping rings and is clamped by them.
- the resetting can be described as follows: The lower of the two clamping rings is opened, the upper clamping ring clamps the tube firmly and is lowered hydraulically in the direction of the lower clamping ring. The lower clamping ring is closed and holds the tube by clamping. The upper clamping ring is opened and moved hydraulically to its original position, upwards.
- the tube is dimensioned so that already existing means for Nachsetz, which were originally used for the graphite electrode, can be used.
- the tube is moved vertically within the first and second zones, but not within the third zone, since the tube would bake into the carbonaceous mass here.
- the pipe pushes against the third zone.
- a termination element is provided which assists the Nachsetzvorgang.
- the inventive device is at the portion of the tube which runs within the cylindrical housing a connec mer provided, which presses against the first zone of the electrode at a lowering of the tube.
- This follower supports the movement of the carbonaceous mass relative to the cylindrical housing during readjustment.
- the driver is designed so that the continuous filling with chunky carbonaceous mass is possible without hindrance.
- An exemplary embodiment is a star-shaped arrangement of individual ner driver elements on the outside of the tube. Depending on the embodiment, only one driver or a closing element or both can be provided on the pipe.
- the tube is provided with openings or perforations, for example perforations or slots. This allows the Söderberg mass to get inside the pipe.
- the tube preferably made of aluminum
- the tube is arranged concentrically with the cylindrical housing of the electrode. This arrangement is ideal for the distribution of tensile and compressive forces.
- the tube is made of metal, for example steel. To avoid a mouth in the third zone, as this would lead to a harmful iron entry.
- the tube is made of a non-ferrous metal, such as aluminum (and opens into the third zone).
- the second function of the tube is to protect the extendible egg member, which extends partially within the tube. This applies in particular in the first zone in which the carbonaceous mass is present in uncoked form.
- Uncoupled means the carbonaceous mass lies, inter alia, in lumpy form, for example in the form of briquettes, which are supplied continuously, as usual in Söderberg technology
- the ice element is at least partially made of carbon fibers.Carbon fibers are generally susceptible to shearing and buckling movements, it requires effective protection against rubbing de and The primary purpose of the egg tube element is to hold the electrode, which has an electrode weight of several tons, and a temperature resistance of 1,000 ° C and higher to ensure there Otherwise, the egg whisk could not perform the necessary egg function.
- the inventive device has the already mentioned verlän gerbare retaining element for receiving tensile forces.
- a first end of the Garele element is releasably connected to a fastener.
- the fastening element is designed as a bolt in which the retaining element can be suspended or as a clamp into which the retaining element can be clamped.
- the second end of the holding element opens into the third zone.
- the carbon-containing mass is here in a coked form, that is solid form. That region of the holding element which runs in this zone is "baked in” there, in other words anchored.
- the retaining element is a rope in the form of a fiber composite of heat-stable fibers, for example in the form of a woven, knitted, knitted, braided or unidirectional fiber orientation, or as a combination thereof.
- the rope is a braid with preferably loose braiding in order to minimize kinks and friction under tensile load or to be able to achieve maximum tensile strength.
- the rope is a braided tubular fabric of Car bon fibers, which is overlapping (for example, about 20 cm) is formed as a loop and sewn by means of carbon fiber yarn.
- a loop element has a loop length optimized for the oven and the user (a loop length of 4m then corresponds to an extension of the electrode suspension of 2 m).
- the rope comprises a plurality of interconnected loops.
- a second loop passes through a first loop.
- a Mixbe rich Between the first and second loop is amaschinebe rich, dividing the second loop into a first loop part and a second loop part.
- a third loop passes through the two loop parts of the second loop.
- Between the second and the third loop is a contact area, which is the third Split the loop into a first loop part and a second loop part (etc.). In this way, the rope can be extended continuously and endlessly.
- the contract area (or contact areas) between successive loops with a synthetic fiber composite (for example, a woven, knitted, knitted, braided or unidirectional fiber orientation or a combination thereof) as a shell for protecting the contact area and the Promotion of the elasticity of the loop chain covered.
- a synthetic fiber composite for example, a woven, knitted, knitted, braided or unidirectional fiber orientation or a combination thereof
- the synthetic fibers are, for example, aramid and / or para-aramid fibers, such as Kevlar® (poly (p-phenylene-terephthalamide), Nomex® (aramid of m-phenylenediamine and isophthalic acid), Twaron®, Technora, Teijinconex, phenol-formaldehyde fibers such as Kynol, polyamide / polyimide fibers such as Kermel, Polybenzimidazolfasem or fiber blends is from.
- Kevlar® poly (p-phenylene-terephthalamide), Nomex® (aramid of m-phenylenediamine and isophthalic acid), Twaron®, Technora, Teijinconex, phenol-formaldehyde fibers such as Kynol
- polyamide / polyimide fibers such as Kermel, Polybenzimidazolfasem or fiber blends is from.
- one or more additional pile points may be created at regular or irregular intervals of, for example, 10 cm to 30 cm.
- short carbon fiber parts such as pieces of rope or cords, which are provided at the ends with knots, braided into the loop or inserted through the loop.
- the short carbon fiber parts are knotted at a distance of about 20 cm as a cross member.
- the carbon fiber parts are of a length between 1 5 cm and 40 cm and a diameter between 1 0 mm and 20 mm.
- the retaining element is a rod comprising a plurality of individual rod elements operatively connected to each other.
- the individual rod elements are joined by operatively connecting their ends to a rod. In this way, the rod is extended continuously.
- Wirkverbinden example a screw or a plug connection to understand.
- a first step the carbon-containing mass of the three zones is moved relative to the housing by a vertical lowering movement of the tube. This step is repeated periodically until the tube has reached the end of the second zone. Subsequently, the relief of the retaining element by reduction of the holding element we kenden tensile forces, followed by the extension of the retaining element and securing the extended retaining element by means of fastening element. Then, the tensile force is applied to the extended retaining element and the tube is raised until it is again within the first zone. Thereafter, the first step takes place again.
- the extension of the holding element in which the holding element end, which is connectable to the fastening element is carried out by connecting with at least one further loop or extended with at least one further rod element.
- Figure 1 shows schematically a partial sectional view (longitudinal section) through a self-baking electrode with inventive device, wherein the holding element is designed as a rope and the tube is etc.
- Figure 2a shows schematically a part of the holding element and its structure of the individual loops.
- Figure 2b shows schematically a single loop of the Flaltiatas, which is provided with fürge stuck carbon fiber parts and a sheath in the contact area.
- FIG. 3 shows schematically a partial sectional illustration (longitudinal section) through a self-baking electrode with a device according to the invention, wherein the
- Holding element is designed as a rod with individual rod elements and the tube is designed with drivers.
- Figure 4 shows schematically a partial sectional view (longitudinal section) by a self-baking electrode with inventive device, wherein the holding element is designed as a rope and the tube (without driver) is Perfo ured.
- FIG. 1 schematically shows a partial sectional view through the self-baking electrode with a device according to the invention.
- the electrode 1 comprises a cylindrical housing 2 in the form of a sheet metal jacket, which is continuously filled with lumped carbonaceous material (briquettes).
- On the cylindrical housing 2 means 9 are arranged, with which the housing can be moved in the vertical direction.
- These means are connected to the structural plant structure which surrounds the device according to the invention (not visible in FIG. 1).
- the means are, for example, two, in the vertical direction hen hen, oppositely disposed Mantelklemmringe 91 and 92, which are connected by a Nachsetzhydraulik, for example Versetzzylinder 93 together.
- the first jacket clamping ring 91 is referred to the upper jacket clamping ring 91 and the second jacket clamping ring 92, which is seen in the vertical direction, below the first Mantelklemmrings, so-called lower Mantelklemmring 92.
- the cylindrical housing 2, that is, the metal jacket extends within these two jacket clamping rings 91st , 92 and is held by these clamped.
- the mantle resetting is carried out by mutual opening of the jacket clamping rings 91, 92 and corresponding vertical movements triggered by the Nachsetzhydraulik, ie the Versetzzylinder 93.
- the Mantel-Nach can be described as follows: The lower of the two Mantelklemmringe 92 is opened, the upper Mantelklemmring 91 holds the cylindrical housing 2 clamped firmly and is hydraulically lowered in the direction of the lower jacket clamping rings 92. The lower clamping ring 92 is closed and holds the cylindrical housing 2 by clamping. The upper jacket clamping ring 91 is geöff net and hydraulically moved to its original position upwards. About so-called contact jaws 3, also arranged on the cylindrical housing 2, the electrode 1 is supplied electrical energy. Another energy source is the thermal energy emitted by the melt.
- the lumpy carbon-containing mass also referred to as uncoked Söderberg mass
- solid state one speaks of a coked Söderberg mass.
- the first zone 4 comprises uncoked carbonaceous mass.
- this mass is pasty to liquid and in the third zone 6 in a coked form.
- Zone 6 is shown only partially in FIG. At this Zone is that region of the electrode 1 which dips into the reaction zone of the furnace (not visible in FIG. 1).
- ore (Si0 2 ) is reduced by carbon addition (eg Elolzkohle, low-ash coal and wood chips) to metallic silicon.
- carbon addition eg Elolzkohle, low-ash coal and wood chips
- the necessary electrical energy arc or plasma
- the electrode 1 consumes itself.
- FIG. 1 Shown in FIG. 1 is a tube 7. This is partially arranged outside the electrode (region 71) and partly within the electrode (region 72). A section of the tube 7, which is arranged in the region 72, passes through the first and the second zone 4, 5. The tube 7 does not reach the third zone 6, in which the carbon is in a coked state and thus in a solid form.
- the tube 7 is arranged concentrically to the cylindrical housing 2.
- a retaining element 1 00 designed as a cable 1, runs partially within the tube 7.
- the tube 7 protects the retaining element 1 00 from being damaged mechanically, in particular in the first zone 4 of the electrode. rode, in which the carbon-containing mass is uncrowned, often in the form of sharp-chunk ing lumpy material.
- a second end 1 02 of the holding element 1 00 which is no longer surrounded by the tube 7, opens in the third zone 6 of the electrode.
- the fastening element 11 is, for example, clamping means or, as shown schematically in FIG. 1, a bolt 1100 in which the retaining element 100 formed as a cable 10 is suspended and of which the Retaining element 1 00 formed as a rope 1 0 dissolved again can be.
- the holding element 1 00 serves primarily to absorb tensile forces and to hold the electrode 1.
- the holding element 1 00 In the embodiment shown in Figure 1, the holding element 1 00 obtained from the holding element 1 00 obtained from the holding element 1 00.
- the first holding element end 01 01 formed as a first loop 1 3 is mounted in the bolt 1 0.
- a loop 1 00 designed as a rope 1 0 is continuously extendable in which a loop 1 3 with a second loop 1 3 and the second loop 1 3 with a third loop 1 3 (etc.) is connected.
- a loop 1 3 is formed as a closed ring.
- the individual loops are made of carbon fiber.
- a preferred embodiment of these loops 1 3 and the possibility of these individual loops 1 3 with each other to the is shown in Figures 2a and 2b.
- Such means 8 are, for example, two, in the vertical direction GE compared arranged clamping rings 81, 82, which are connected mitei by a Versetzzylinder 83 mitei.
- the first clamping ring 81 is called the upper clamping ring and the second clamping ring, which is seen in the vertical direction, below the first clamping ring, the so-called lower clamping ring 82.
- the tube extends within half of these two clamping rings 81, 82 and is clamped by these held.
- the Nachsten can be described as follows: The lower of the two clamping rings 82 is opened, the upper clamping ring 81 holds the tube clamped and is hydraulically lowered in the direction of the lower clamping ring 82.
- the lower clamping ring 82 is closed and holds the tube 7 clamping.
- the upper clamping ring 81 is ge opens and hydraulically moved to its original position, upwards.
- the tube 7 moves within the uncoked carbon-containing mass of the first zone 4 and the pasty to liquid mass of the second zone 5, thereby exerting corresponding thrust and / or pressure forces on the third zone 6.
- the coked carbonaceous mass from the third zone 6 is consumed.
- the holding element 1 00 in particular for that region of the holding element which extends in the third zone 6.
- a driver 1 2 pre-see, which presses against the uncoked carbon-containing mass of the first zone 4 in the vertical movement of the tube 6.
- the holding element 1 00 is continuously ver longer.
- the loop 1 3, which forms the first end 1 01 of the holding member 1 00 of the bolt 1 1 0 dissolved and with a wide ren loop 1 3, which is then hooked back into the pin 1 1 0 connected. In this way, the holding member 1 00 is continuously extended as needed.
- FIG 2a are parts of the holding element 1 00, formed from individual ver each other connected loops 1 3 of a rope 1 0 shown.
- Each of the loops 13 is, in the embodiment shown in FIG. 2, formed as a closed ring.
- An exemplary material for the loops 1 3 is a fabric of carbon fiber.
- Schematically represented is the third zone 6 consisting of verkokter solid Söderberg mass.
- the second holding element end 10 2 comprises two loops 1 3A and 1 3B, and the two loops 1 3A and 1 3B are connected by a third Loop 1 3C interconnected.
- the third loop 1 3C passes through the at the loops 1 3A and 1 3B.
- the loop 1 3C then comprises a first loop portion 13C and a second loop portion 13C.
- the next loop 1 3D passes through these two loop portions, intervening between the first loop portion 13C, second loop portion 13C" and Loop 1 3D then results in a contact area 1 31.
- the loop 1 3D comprises a first loop part 1 3D 'and a second loop part 1 3D.
- a next following loop 1 3E (indicated as a dashed arrow in FIG. 2) passes through the first loop part 1 3D' and the second loop part 1 3D".
- the result is a contact region 1 32 between those in the loop parts 1 3D 'and 1 3D.
- the loop 1 3E comprises a first loop part 1 3 E' and a second loop part 1 3E", which are penetrated by the next loop 1 3F (in FIG Figure 2a is no longer visible).
- the holding element 1 00 comprises a certain number of loops which are interconnected in the manner previously described.
- the second retaining element end 1 02 is formed by two loops 1 3A and 1 3B, which are connected by the third loop 1 3C.
- another anchoring element for example a kind of hook is used, is anchored with the help of the second holding element end 1 02 in the verkokten Söderbergmasse.
- the second holding element end 1 02 (not visible in FIG. 2) is formed in a preferred embodiment in the same way as, for example, the loop 1 3D shown in FIG. 2a.
- the two loop parts 1 3D 'and 1 3D "are hooked into the bolt 1 0 (see Figure 1) and form the end of the holding element 1 00.
- an additional further anchoring element for example also a Hook be seen before, which connects the two loop parts with the bolt.
- FIG. 2 b shows an enlarged view of the loop 1 3 D (according to FIG. 2 a) with loop parts 1 3D 'and 1 3 D "and their contact areas 1 31 and 1 32 with loops 1 3C and 1 3E a covering or sheath 1 34 made of a fiber composite
- the loop 1 3D is provided with additional breakpoints 1 33 in the form of carbon fiber parts with nodes at the ends.
- FIG. 3 shows the illustration from FIG. 1, with the difference that the holding element 100 is constructed as a bar 20 made up of individual bar elements 21.
- the rod (20) can be extended as needed.
- the rod elements (2 1) are operatively connected at their ends, for example by means of a plug connection or a screw connection.
- the first end of the holding element 1 01 comprises a fastening means 1 1, which is formed in the embodiment of Figure 3, for example, as a terminal in which one end of the rod member (2 1) can be clamped (terminal not visible in Figure 3).
- FIG. 4 shows the illustration from FIG. 1, with the difference that the pipe 7a is perforated and no drivers are provided on the outside of the pipe 7a. It is also recognizable that the tube 7a opens into the third zone 6.
- the perforations 7b allow the unconsolidated, carbonaceous mass into the interior of the tube 7a to ge long, causing the use of drivers according to Figure 1 (1 2) to exercise from pressure against the uncoked, carbonaceous mass of the first zone 4 is unnecessary.
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Plasma & Fusion (AREA)
- Ceramic Products (AREA)
- Electrolytic Production Of Metals (AREA)
- Carbon And Carbon Compounds (AREA)
- Furnace Details (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/EP2018/064657 WO2019233549A1 (de) | 2018-06-04 | 2018-06-04 | Selbstbackende elektrode |
PCT/EP2019/064364 WO2019233955A1 (de) | 2018-06-04 | 2019-06-03 | Selbstbackende elektrode |
Publications (1)
Publication Number | Publication Date |
---|---|
EP3804464A1 true EP3804464A1 (de) | 2021-04-14 |
Family
ID=62555065
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP19727045.7A Pending EP3804464A1 (de) | 2018-06-04 | 2019-06-03 | Selbstbackende elektrode |
Country Status (8)
Country | Link |
---|---|
US (1) | US11606847B2 (de) |
EP (1) | EP3804464A1 (de) |
CN (1) | CN112514535B (de) |
AU (1) | AU2019282028A1 (de) |
BR (1) | BR112020024645A2 (de) |
CA (1) | CA3102345A1 (de) |
EA (1) | EA202092994A1 (de) |
WO (2) | WO2019233549A1 (de) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR3093610B1 (fr) * | 2019-03-08 | 2021-02-12 | Ferropem | Electrode à auto-cuisson |
CN111365993A (zh) * | 2020-03-24 | 2020-07-03 | 罗建美 | 矿热炉及电极焙烧加热方法 |
Family Cites Families (19)
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US1442031A (en) * | 1920-01-27 | 1923-01-09 | Norske Elektrokemisk Ind As | Method of suspending electrodes |
GB701082A (en) * | 1951-04-20 | 1953-12-16 | Elektrokemisk As | Contact arrangements for continuous self-baking electrodes in electric furnaces |
GB729234A (en) * | 1952-08-29 | 1955-05-04 | William Harvey Payne | Adjusting apparatus for controlling movements of a hydraulically operated structure supporting an electrode in an electric arc furnace |
GB881897A (en) * | 1957-06-05 | 1961-11-08 | Shawinigan Chem Ltd | Improvements in or relating to apparatus for controlling slipping of continuous electrodes |
DE1161652B (de) * | 1958-11-05 | 1964-01-23 | Edison Settore Chimico Azienda | Kontinuierliche, selbstbackende Metallmantelelektrode fuer Lichtbogenoefen |
DE2521873C3 (de) * | 1975-05-16 | 1980-01-31 | Mannesmann Demag Ag, 4100 Duisburg | Beschickungsvorrichtung für Feinmöller zu Elektroofen mit selbstbackenden Hohlelektroden und Verfahren zum Betreiben der Beschickungsvorrichtung |
DE2723917A1 (de) * | 1977-05-26 | 1978-11-30 | Jurij Fedorovitsch Frolov | Einrichtung zur formierung einer selbstbackenden elektrode |
EP0179164B1 (de) * | 1984-10-23 | 1987-09-02 | Kinglor - Ltd | Selbstbackende Elektrode für elektrische Lichtbogenöfen und dergleichen |
NO157078C (no) * | 1985-08-22 | 1988-01-13 | Elkem As | Bakeovn for elektroder. |
DE4010353A1 (de) * | 1990-03-28 | 1991-10-02 | Mannesmann Ag | Verfahren und vorrichtung zum betreiben eines metallurgischen ofens mit selbstbackender elektrode |
FR2724219B1 (fr) * | 1994-09-05 | 1996-10-25 | Pechiney Electrometallurgie | Dispositif de montage d'une electrode composite a autocuisson pour four electrique a arc |
US5912916A (en) * | 1995-05-01 | 1999-06-15 | Alabama Power Company | Electric furnace with insulated electrodes and process for producing molten metals |
JP4604342B2 (ja) * | 2000-12-08 | 2011-01-05 | ソニー株式会社 | カーボンナノ構造体の合成用のアーク電極 |
CA2876548C (en) * | 2012-06-28 | 2018-04-17 | Jacques Venter | Electrode clamping device |
CN103731941B (zh) * | 2012-10-12 | 2015-12-02 | 清华大学 | 加热元件的制备方法 |
CN104427673A (zh) * | 2013-09-01 | 2015-03-18 | 钱学君 | 无壳自焙电极*** |
DE102013224552A1 (de) * | 2013-11-29 | 2015-06-03 | Sms Siemag Ag | Vorrichtung und Verfahren zum Nachsetzen einer Elektrode für einen metallurgischen Ofen |
CN205627919U (zh) * | 2016-02-03 | 2016-10-12 | 夏维珞 | 一种电弧加热煤粉制乙炔反应器 |
CN108083274A (zh) * | 2017-12-22 | 2018-05-29 | 沈阳中禾能源科技有限公司 | 超高温连续式石墨提纯设备及方法 |
-
2018
- 2018-06-04 WO PCT/EP2018/064657 patent/WO2019233549A1/de active Application Filing
-
2019
- 2019-06-03 WO PCT/EP2019/064364 patent/WO2019233955A1/de unknown
- 2019-06-03 EP EP19727045.7A patent/EP3804464A1/de active Pending
- 2019-06-03 BR BR112020024645-0A patent/BR112020024645A2/pt unknown
- 2019-06-03 EA EA202092994A patent/EA202092994A1/ru unknown
- 2019-06-03 US US15/734,626 patent/US11606847B2/en active Active
- 2019-06-03 CN CN201980048560.5A patent/CN112514535B/zh active Active
- 2019-06-03 AU AU2019282028A patent/AU2019282028A1/en active Pending
- 2019-06-03 CA CA3102345A patent/CA3102345A1/en active Pending
Also Published As
Publication number | Publication date |
---|---|
WO2019233549A1 (de) | 2019-12-12 |
CN112514535B (zh) | 2023-06-30 |
CN112514535A (zh) | 2021-03-16 |
AU2019282028A1 (en) | 2021-02-04 |
EA202092994A1 (ru) | 2021-04-02 |
WO2019233955A1 (de) | 2019-12-12 |
BR112020024645A2 (pt) | 2021-03-02 |
US11606847B2 (en) | 2023-03-14 |
US20210235556A1 (en) | 2021-07-29 |
CA3102345A1 (en) | 2019-12-12 |
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