WO2015110907A1 - Dispositif de perçage d'une croûte de bain cryolithaire apte à être positionné en périphérie d'une cuve d'électrolyse - Google Patents
Dispositif de perçage d'une croûte de bain cryolithaire apte à être positionné en périphérie d'une cuve d'électrolyse Download PDFInfo
- Publication number
- WO2015110907A1 WO2015110907A1 PCT/IB2015/000075 IB2015000075W WO2015110907A1 WO 2015110907 A1 WO2015110907 A1 WO 2015110907A1 IB 2015000075 W IB2015000075 W IB 2015000075W WO 2015110907 A1 WO2015110907 A1 WO 2015110907A1
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- WIPO (PCT)
- Prior art keywords
- electrolytic cell
- piercing
- box
- piercing device
- rod
- Prior art date
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Classifications
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- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25C—PROCESSES FOR THE ELECTROLYTIC PRODUCTION, RECOVERY OR REFINING OF METALS; APPARATUS THEREFOR
- C25C3/00—Electrolytic production, recovery or refining of metals by electrolysis of melts
- C25C3/06—Electrolytic production, recovery or refining of metals by electrolysis of melts of aluminium
- C25C3/14—Devices for feeding or crust breaking
Definitions
- the present invention relates to the general technical field of aluminum production by electrolysis in an electrolysis cell containing a cryolite bath.
- cryolite bath a device for piercing a solidified crust extending over the cryolite bath (hereinafter referred to as "cryolite bath") of said vessel.
- This drilling device can be mounted on an electrolytic cell with pre-baked anodes, or on a continuous anode electrolysis cell called Soderberg.
- Aluminum is essentially produced by electrolysis of alumina dissolved in a cryolite bath.
- electrolytic cell composed of a steel box open at its upper part, and whose interior is covered with refractory material, a cathode surmounted by one (or more) anode (s), the anode being immersed in the cryolite bath heated to a temperature between 930 and 980 ° C.
- the application of an electric current between the anode and the cathode makes it possible to initiate the electrolysis reaction.
- the anode is consumed progressively during the electrolysis reaction. Once the anode has been used, it is replaced by a new anode.
- a solidified crust of alumina and frozen electrolyte forms on the surface of the cryolite bath.
- the formation of this crust has the advantage of thermally isolating the cryolite bath and confining a portion of the pollutant gases generated by the electrolysis reaction.
- the production of aluminum by electrolysis causes a permanent change in the composition of the cryolite bath.
- the alumina is consumed by the electrolysis reaction and, on the other hand, the quantity and the composition of the cryolite bath are progressively modified by secondary mechanisms, such as the absorption of constituents of the cryolite by the walls of the cell or the decomposition of the fluorinated constituents by anode effects.
- an electrolytic cell is generally equipped with piercing devices for forming holes by piercing the crust, and metering devices for adding the compounds in the form of powders through said holes.
- Each piercing device generally comprises a jack and a piercing member (known as a “plunger” or “chisel”) attached to the end of a rod of the jack.
- the piercing member generally vertically placed, is lowered by activation of the jack to break the crust extending over the solidified bath.
- Document FR 2 262 700 is thus known, an electrolytic cell comprising a box of rectangular parallelepiped shape, a superstructure carried by the box, anode assemblies suspended in pairs along the superstructure, cathode blocks at the bottom of the box, and a cryolite bath in which the anode assemblies are immersed.
- the electrolysis cell also comprises a plurality of piercing devices positioned above the box and extending in a median plane of the box between the pairs of anode assemblies, over the entire length of the box.
- An object of the present invention is therefore to provide a drilling device whose configuration makes it possible to improve the ergonomics of an electrolytic cell, and in particular to minimize the height of the electrolytic cell.
- the invention proposes a drilling device comprising a compound cylinder a body and a rod extending along a longitudinal axis, and a piercing member connected to the rod, the piercing device being operable to form a hole in a crust of alumina and solidified bath of an electrolytic cell by a reciprocating movement of the piercing member along a translation axis T, the longitudinal axis being parallel and distinct from the translation axis T.
- parallel and distinct axes means two parallel and non-coincident axes, that is to say spaced apart by a non-zero distance "d”.
- the electrolysis cell may comprise a box lined with an inner liner for receiving a cryolite bath and including a bottom, transverse side walls, and longitudinal side walls, and a containment enclosure including sidewalls offset to outside relative to the side walls of the box so that said side walls of the enclosure extend around and above the side walls of the box.
- a containment enclosure including sidewalls offset to outside relative to the side walls of the box so that said side walls of the enclosure extend around and above the side walls of the box.
- the planes in which the side walls of the enclosure extend surround the side walls of the box.
- the longitudinal axis is parallel and distinct from the translation axis T makes it possible to move the piercing member relative to the jack so as to obtain a piercing device intended to be positioned at the periphery of the bowl. electrolysis and whose height is minimized, more particularly the height of the piercing device above the crust.
- Such drilling on the periphery of the electrolytic cell allows a supply of various compounds (Alumina, AlIF3, etc.) at the periphery of the tank and thus the maintenance of cold spots in the cryolite bath near the walls of the caisson, thereby improving the holding of the caisson and the tank at the high temperatures of the cryolite bath.
- various compounds Allumina, AlIF3, etc.
- the free end of the piercing member is opposite the jack. More precisely, at least one plane perpendicular to the longitudinal axis of the jack passes through the free end of the piercing member and the jack. This limits the height of the piercing device, and thus the height of the electrolytic cell. In particular, this makes it possible to limit the height of a confinement enclosure defining with the caisson a volume of confinement of the gases above the crust.
- the end of the cylinder body through which the rod leaves is at a height less than the piercing member.
- the height of the drilling device above the crust is lower than that of a drilling device of the prior art in which the height above the crust is at least the addition of the heights of the crust.
- the piercing device and the cylinder body may comprise a U-shaped structure composed of two wings connected to a transverse web, a first wing being connected to the rod and a second wing being integral with the piercing member. This allows in particular a positioning of the piercing device at the periphery of the electrolytic cell, and more precisely on one of its side walls.
- the first wing is mounted integral with the cylinder rod.
- the first wing is connected to the rod by means of a transverse beam mounted integral with one end of the rod on the one hand, and mounted integral with one end of the first opposite wing. to the transverse soul on the other hand.
- the piercing device may also comprise means for guiding the piercing member in translation along the axis of translation T.
- the guiding means make it possible to define the path of displacement of the piercing member and limit the forces radial forces endured by the cylinder rod during the perforation of the crust by the piercing member, these radial forces may deteriorate the cylinder.
- the guide means may be coupled to the first wing and define a sliding guide path for the first wing.
- the guide means comprise for example a plate including a channel surrounding the first wing, the channel projecting on at least one face of the plate.
- the channel is more particularly protruding on the face of the plate opposite to the transverse core so as to minimize the height of the transverse core above the plate.
- the channel advantageously extends perpendicular to the plane of the plate.
- the first flange slides inside the channel.
- the fact that the channel protrudes from the face of the plate opposite to the transverse core makes it possible to limit the number of parts of the piercing device extending inside the electrolytic cell.
- the side walls of the containment chamber extend around and above the side walls of the box.
- the upper edges of the box and / or the lower edges of the containment chamber can form a flap for mechanically connecting the side walls of the box and the enclosure, so that the enclosure defines with the box a containment volume of gas above the cryolite bath.
- each guide means may be part of the enclosure and / or the plate, or allow to close an opening in said plate. This plate is in particular removable to facilitate disassembly of the piercing device.
- a first part of the piercing device composed of the jack and a portion of the first wing extends outside the enclosure, and a second part of the piercing device composed of a portion of the first wing, of the transverse core and the second wing extends inside the containment.
- the cylinder is outside the enclosure while the piercing member is inside the enclosure. This reduces the risk of degradation of the cylinder by limiting its exposure to gases and heat radiation.
- the guide means may be coupled to the second wing and define a sliding guide path for the second wing.
- the guide means may comprise a plate including a channel surrounding the second wing and positioned in line with the crust of alumina and solidified bath when the piercing device is attached to the electrolytic cell.
- the channel advantageously extends perpendicular to the plane of the plate at one end.
- the channel surrounding the second wing may protrude from the plate on one face of the plate facing the transverse core, or project from the plate on one side of the plate facing the piercing member, or protrude plate on both sides.
- the jack can be attached to the electrolytic cell at a free end of the cylinder body opposite the rod.
- This free end can be attached to an upper edge of the tank.
- the free end of the body is further away from the bottom of the tank than the end of the rod opposite the body.
- the cylinder body is positioned at an altitude greater than that of the bath contained in the tank, which limits the exposure of the cylinder body to high temperatures.
- the free end may be attached to the electrolysis cell so as to be closer to the bottom of the tank than the end of the stem opposite the body.
- the cylinder body is positioned at an altitude less than or equal to that of the bath contained in the tank, which limits the lateral space between the tanks of the piercing device.
- the invention also relates to an electrolytic cell that can be used for the production of aluminum, comprising a box covered with an inner lining and including a bottom, transverse lateral walls, and longitudinal side walls, the box being intended to receive a cryolite bath, the tank further comprising at least one piercing device as described above, each piercing device extending along at least one of the longitudinal side walls of the box.
- Positioning the piercing devices at the periphery of the electrolytic cell - and more precisely along its side walls - allows the absence of an obstacle to a vertical stroke of anode assemblies of the electrolytic cell. This allows the anode assemblies to be replaced by the top of the electrolytic cell, without requiring the implementation of a kinematics of complex displacement of the anode assemblies.
- Each piercing device can be attached to one of the side walls of the box.
- each piercing device can be attached to one of the side walls of a containment enclosure, the enclosure including transverse and longitudinal side walls, the enclosure being intended to define with the box a containment volume of gas above the cryolite bath.
- Each drilling device may in particular be attached to an upper edge of the containment chamber opposite the bottom of the box. This allows positioning of the piercing device above the cryolite bath to limit exposure of the cylinder body to high temperatures. Also, the side walls of the box are free to allow air convection at the periphery of the box to cool it.
- the tank may comprise a gas collection device including at least one gas collection sheath having suction holes for gas suction, each piercing device being fixed on said collection sheath.
- the capture duct in addition to the suction function of the pollutant gases, also provides a fixing support function for the drilling device.
- the piercing device can be fixed via the body of the cylinder and means for guiding the piercing member in translation.
- the guiding means are advantageously fixed on the box and / or the containment enclosure so as to be disassembled to facilitate disassembly and maintenance of the piercing device.
- the containment chamber may be supported on the box, the piercing device passing through the containment enclosure or the box.
- the drilling device - and more precisely the first wing - can pass through the containment enclosure or the box in a direction parallel to the translation axis T and the longitudinal axis A-A '. This limits the size of the opening for the passage of the piercing element to the dimensions of the first flange so as to improve the sealing of the vessel.
- a dynamic seal ring seal can be arranged on the opening for the passage of the piercing device.
- annular dynamic seal may be associated with the first wing; in this case, the first wing is able to move in translation through the annular dynamic seal. This ensures the tightness of the tank electrolysis at openings on the tank for the passage of the first wing.
- This seal may be positioned at the periphery of a light or a channel through which the first wing passes.
- FIG. 1 is a schematic perspective view of an example of an electrolysis cell
- FIG. 2 is a schematic representation of a drilling device
- FIGS. 3 to 5 are partial schematic sectional views of various alternative embodiments of the piercing device and an electrolytic cell
- Figure 6 is a perspective view of an electrolytic cell including a plurality of piercing devices.
- An example of an electrolysis cell including one or more piercing devices for forming a hole in a crust of alumina and solidified bath will now be described. It is obvious to those skilled in the art that the piercing device can be used with other types of tanks.
- 'Upper opening' means an opening in a horizontal wall of a rectangular parallelepiped opposite to the bottom
- face / side wall means a face / vertical wall of a rectangular parallelepiped extending in a plane perpendicular to the bottom
- FIG. 1 an example of an electrolytic cell according to the invention is illustrated.
- the rectangular parallelepiped-shaped electrolysis cell comprises a box 1, a containment chamber 2, one or more anode assembly (s) 3, a cathode 4, a gas collection device 5 and one or more measuring devices. drilling 6.
- This tank is used for the production of aluminum. It may be associated with a plurality of other electrolysis cells, possibly identical, the different tanks being arranged one after the other, two successive electrolytic cells being adjacent at one of their longitudinal side walls. .
- the casing 1 is of generally parallelepipedal shape. It comprises a bottom 11, two transverse side walls 12, and two longitudinal side walls 13.
- the box 1 may be metallic, for example steel.
- the inner faces of the bottom 11 and the side walls 12, 13 of the box 1 are covered with a refractory material 14 for insulating the box. This refractory material 14 is only partially represented so as not to overload FIG.
- the casing 1 is open in its upper part. It is intended to receive a cryolite bath 6 in which are dipped the (or) all (s) anode (s) 3.
- the confinement chamber 2 defines a closed volume above the cryolite bath 16 in which the anode assembly (s) 3 is (are) displaced.
- the chamber 2 comprises four side walls 22, 23: two transverse side walls 22 and two longitudinal side walls 23. It is open at the lower edges 24 and upper 25 of its side walls 22, 23.
- the side walls 22, 23 of the containment chamber 2 are offset outwardly relative to the side walls 12, 13 of the box 1 so that said side walls 22, 23 of the enclosure 2 extend around and above the side walls of the box 1.
- the planes in which the side walls of the enclosure 2 extend surround the side walls 12, 13 of the box 1.
- the upper edges 17 of the box 1 and / or the lower edges 24 of the containment chamber 2 can form a plate to mechanically connect the side walls 12, 13, 22, 23 of the box 1 and the chamber 2, so that the enclosure 2 defines with the caisson 1 a volume of confinement of the gases above the cryolite bath.
- the enclosure 2 also comprises a removable cowling intended to cover the upper opening of the assembly composed of the box 1 and the side walls 22, 23 of the enclosure 2.
- the cowling 26 may be composed of a panel assembly or hoods extending generally in a horizontal plane, and bearing on the upper edges 25 of the side walls 22, 23 of the enclosure 2.
- Each anode assembly 3 comprises an anode 31 and an anode structure 32.
- the anode structure 32 on the one hand manipulates the anode 31, and on the other hand to supply the electric current.
- the anode 31 immersed in the cryolite bath 16 is consumed.
- Anode assemblies 3 must therefore be replaced periodically.
- the anode 31 is preferably a block of precooked carbonaceous material.
- the anode and the anode structure may be of any type known to those skilled in the art and will not be described in more detail below.
- the cathode 4 is composed of one (or more) block (s) of carbonaceous material.
- the cathode 4 may be of any type known to those skilled in the art and will not be described in more detail below.
- the gas collection device 5 makes it possible to recover the pollutant gases generated during the electrolysis reaction.
- the gas collection device 5 comprises one (or more) collection sheath (s) 55 on which (which) suction holes 53 for the suction of gases are distributed.
- the capture sheath (s) is (are) associated with (or more) suction device (s) (not shown). It (s) extends (ent) on the longitudinal side walls 23 of the enclosure 2, and possibly on the transverse side walls of the enclosure 2. The presence of suction holes 53 along the longitudinal walls 23 of enclosure 2 makes it possible to improve the collection efficiency of the polluting gases 5.
- the suction holes 53 formed in the different side walls 22, 23 of the chamber 2 can be positioned vertically at different heights.
- the number of suction holes 53 of the collection device 5 may be equal to the number of piercing devices 6 attached to the electrolytic cell.
- each suction hole 53 can be associated with a respective drilling device 6 and be positioned close to it.
- each capture sheath 55 may be of square or rectangular section, and be made of a material having a high mechanical strength, such as steel. This makes it possible to increase the rigidity and the strength of the suction duct.
- a collection sheath is formed which, in addition to its primary gas routing function, can be used in particular as:
- strapping belt for the set composed of the caisson 1 and the enclosure 2, and as
- fixing bracket for various elements of the electrolytic cell such as piercing devices.
- the piercing devices make it possible to form holes in a crust of alumina and solidified bath forming on the surface of the cryolite bath during the electrolysis reaction. These holes are formed regularly to allow the addition of various compounds - such as alumina, cryolite (Na3AIF6) or aluminum fluoride (AIF3) - to stabilize and regulate the operating parameters of the tank. 'electrolysis.
- various compounds - such as alumina, cryolite (Na3AIF6) or aluminum fluoride (AIF3) - to stabilize and regulate the operating parameters of the tank. 'electrolysis.
- FIG. 2 shows an example of a drilling device. This comprises a jack 61 and a piercing member 62.
- the jack 61 comprises a body 61 1 and a rod 612 extending along a longitudinal axis A-A '.
- the cylinder 61 may be of pneumatic type to withstand the high temperatures of use of the tank (about 500 ° C).
- the jack 61 makes it possible to animate the piercing member 62 in a vertical reciprocating movement along a translation axis T.
- the piercing member 62 is intended to be positioned above the crust to be pierced.
- the piercing member 62 may consist of a bar whose free end is terminated by a point adapted to penetrate the crust to form a hole.
- the piercing member 62 is arranged such that the translation axis T is distinct (ie not coincidental) and parallel to the longitudinal axis AA 'of the jack 61. This makes it possible to move the piercing member 62 by relative to the jack 61 so as to limit the height of the piercing device 6 above the crust, more particularly in the confinement enclosure 2. Such a piercing device 6 can then be positioned at the periphery of the vessel of electrolysis on the other hand.
- the piercing member 62 is coupled to the jack 61 via a U-shaped structure 63 composed of first and second wings 631, 632 connected to a transverse core 633. .
- the first wing 631 is integral with the rod 612 and extends in the extension thereof along the longitudinal axis A-A '.
- the second wing 632 is integral with the piercing member 62 and extends along the translation axis T.
- a thermally insulating part may be fixed between the first flange 631 and the rod 6 2 to limit the risk of propagation of heat to the body 61 1 of cylinder 61, an excessive increase in the temperature of the body 611 may induce a degradation of cylinder 61.
- the transverse core 633 of the U-shaped structure preferably extends perpendicular to the first and second flanges 631, 632. It is mounted integral with the first and second flanges 631, 632.
- the guide means 64 guide the translational movement of the piercing member.
- the guiding means 64 comprise a plate 640 extending perpendicularly to the longitudinal axis AA 'and to the translation axis T.
- the plate 640 comprises first and second through channels 641, 642 surrounding a portion of the first and second wings 631, 632. These through channels 641, 642 define sliding guide paths for the first and second wings 631, 632.
- the presence of at least one through channel 641, 642 it makes it possible to limit the radial forces F 'applied to the rod 612 and which can degrade the jack 61.
- the diameter of the channels is slightly greater than the diameter of the first and second flanges 631, 632 to allow sliding and guiding of the first and second flanges 631, 632 inside the first and second channels 641, 642. that the diameter of the first channel is complementary to the diameter of the first wing makes it possible to improve the tightness of the tank
- An annular dynamic seal may also be mounted on the channel 641; in this case, the first wing is able to move in translation through the annular dynamic seal.
- the seal remains advantageously immobile at the periphery of the channel 641, while the first flange translates vertically inside this seal.
- the piercing device is intended to be fixed on the electrolytic cell at the level of the guide means 64 on the one hand, and the body 612 of the cylinder 61 on the other hand, more particularly of the free end 613 of the body 612 of cylinder 61.
- Figures 3 to 5 illustrate different mounting examples of the piercing device on an electrolytic cell.
- FIG. 3 there is illustrated an example of mounting the piercing device of Figure 2 on an electrolytic tank.
- the jack 61 is housed in a free space formed between reinforcement cradles 131 of the box 1.
- the cylinder 61 is fixed to the box "upside down". More specifically, the body 61 1 of cylinder 61 is mounted on the casing 1 so that its free end 613 is closer to the bottom 1 1 of the casing 1 that the rod 612.
- Having cylinder 61 thus allows to limit the height of the drilling device above the crust at the stroke distance necessary to break the crust, without the need to add the length of the cylinder.
- the guide means 64 comprise a plate 640.
- the plate 640 has a through-hole 643 through which the first wing 631 extends.
- the plate 640 also comprises a single channel 642 through which the second wing 632 extends. The presence of a single guide channel 642 allows a greater tolerance vis-à-vis any mounting gaps between the U-shaped structure 63, the cylinder 61 and the piercing member 62.
- the single guide channel 642 defines a vertical guide path for the piercing member 62.
- the single channel 642 extends to the right of the cryolite bath.
- the diameter of the through-light 643 is slightly greater than the diameter of the first wing 631 to improve the tightness of the tank.
- an annular dynamic seal may be mounted on the through-light 643.
- the jack 61 is connected to the U-shaped structure 63 via a transverse link beam 65.
- This transverse link beam 65 preferably extends perpendicularly to the rod 612 and to the first one. wing 631.
- the transverse connecting beam 65 is mounted integral with the rod 612 of the cylinder 61 and on the first wing 631.
- the cylinder 61 is fixed to the tank "head up". More specifically, the body 61 1 of cylinder 61 is mounted so that its free end 613 is further away from the bottom 1 1 of the box 1 that the rod 612.
- the free end 613 of the body 611 of the cylinder 61 can be fixed on the longitudinal side wall 23 of the chamber 2, and preferably on the capture sheath 55 of the chamber 2, so that the body 61 1 extends against the longitudinal side wall 23 at a height greater than that of the cryolite bath 16. This limits the risk of degradation of the cylinder 61 by exposure of the body 61 1 to too high temperatures.
- the temperature of the side walls 12, 13 of the box 1 is generally greater than the temperature of the side walls 22, 23 of the chamber 2 due to the presence of the cryolite bath 16 whose temperature is of the order of 1000 ° C.
- Such a positioning of the jack leaves more advantageously accessible the longitudinal side wall 13 of the box 1 to implement for example a ventilation device and cooling of the walls of the box as known from patent EP 1 070 158.
- the guide means 64 consist of a plate 640 including a single channel 641 intended to be associated with the first wing 631. This makes it possible to increase the tolerance of the piercing device vis-à-vis the possible games existing mounting between the cylinder 61, the piercing member 62, and the U-shaped structure 63. In addition this improves the ergonomics of the guide means 64 and limits the number of tank parts covering the surface of the bath cryolithaire for easy access.
- the single channel 641 protrudes on one side of the plate.
- the guide means 64 are fixed on the electrolytic cell so that the channel 641 extends downwards from the tank (ie towards the bottom of the box). This makes it possible to limit the number of pieces of the piercing device projecting in the closed volume defined by the containment enclosure 2 above the cryolite bath 16. This also makes it possible to limit the height at which the air rises. transverse core 633 above the crust.
- FIG. 5 another embodiment of the piercing device 6 is illustrated. This embodiment incorporates certain features of the two previous embodiments so as to combine their respective advantages.
- the body 61 1 of cylinder 61 is fixed "upside down", as the embodiment illustrated in Figure 3. It extends in the extension of the first flange 631, between the reinforcement cradles 131 of the box 1.
- the guide means 64 consist of a plate 640 including a single channel 641 surrounding the first flange 631 and protruding from the plate 640 towards the body 611 of the cylinder 61. No channel is associated with the second flange 632 for limit the size and complexity of the drilling device 6. Moreover, this avoids the presence of parts of the guide means 64 to the right of the cryolite bath 16.
- FIG. 6 there is illustrated a perspective view of an electrolytic cell including a plurality of piercing devices 6 as described above.
- the drilling devices 6 are arranged at the longitudinal side walls 13, 23 of the tank (consisting of the longitudinal side walls of the box and the containment).
- Each piercing device 6 is associated with one (or more) metering device (s) allowing the addition of compounds such as alumina, cryolite (Na3AIF6) or aluminum fluoride (AIF3), in order to stabilize the operating parameters of the electrolytic cell. More precisely, in the embodiment illustrated in FIG. 6, each piercing device 6 is associated with two proportioners 66, the first allowing the introduction of alumina through the hole formed by the piercing member 62, the second allowing the introduction of cryolite and aluminum fluoride through the hole formed by the piercing member 62.
- the drilling device described above therefore has many advantages, particularly with reference to the operation of an electrolytic cell used for the production of aluminum.
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- Electrolytic Production Of Metals (AREA)
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Abstract
Description
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Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
RU2016134748A RU2016134748A (ru) | 2014-01-27 | 2015-01-23 | Пробойник корки криолитовой ванны, который может быть установлен на периферии электролизера |
CA2935486A CA2935486A1 (fr) | 2014-01-27 | 2015-01-23 | Dispositif de percage d'une croute de bain cryolithaire apte a etre positionne en peripherie d'une cuve d'electrolyse |
AU2015208861A AU2015208861A1 (en) | 2014-01-27 | 2015-01-23 | Device for drilling a crust of a cryolite bath, that can be positioned on the periphery of an electrolytic cell |
EP15739799.3A EP3099846A4 (fr) | 2014-01-27 | 2015-01-23 | Dispositif de perçage d'une croûte de bain cryolithaire apte à être positionné en périphérie d'une cuve d'électrolyse |
CN201580006059.4A CN105940148A (zh) | 2014-01-27 | 2015-01-23 | 可以位于电解槽的周边的用于刺穿冰晶石浴的硬外皮的设备 |
DKPA201670543A DK179337B1 (en) | 2014-01-27 | 2016-07-19 | Device for drilling a crust of a cryolite bath that can be positioned on the periphery of an electrolytic cell |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR1400173 | 2014-01-27 | ||
FR1400173A FR3016898B1 (fr) | 2014-01-27 | 2014-01-27 | Dispositif de percage d'une croute de bain cryolithaire apte a etre positionne en peripherie d'une cuve d'electrolyse. |
Publications (1)
Publication Number | Publication Date |
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WO2015110907A1 true WO2015110907A1 (fr) | 2015-07-30 |
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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PCT/IB2015/000075 WO2015110907A1 (fr) | 2014-01-27 | 2015-01-23 | Dispositif de perçage d'une croûte de bain cryolithaire apte à être positionné en périphérie d'une cuve d'électrolyse |
Country Status (8)
Country | Link |
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EP (1) | EP3099846A4 (fr) |
CN (1) | CN105940148A (fr) |
AU (1) | AU2015208861A1 (fr) |
CA (1) | CA2935486A1 (fr) |
DK (1) | DK179337B1 (fr) |
FR (1) | FR3016898B1 (fr) |
RU (1) | RU2016134748A (fr) |
WO (1) | WO2015110907A1 (fr) |
Families Citing this family (1)
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FR3077018B1 (fr) * | 2018-01-24 | 2020-01-24 | Rio Tinto Alcan International Limited | Dispositif de percage comprenant un fourreau tubulaire fixe a un verin |
Citations (3)
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CA2093338A1 (fr) * | 1990-10-04 | 1992-04-05 | James H. Nordquist | Alimentateur continu de minerai pour cuves d'electrolyse soderberg |
CA1316793C (fr) * | 1988-06-14 | 1993-04-27 | Gianfranco Zannini | Marteau actionne par un systeme hydraulique, destine a etre utilise notamment en milieux poussiereux, corrosif ou similairement hostile |
CN202047145U (zh) * | 2011-04-11 | 2011-11-23 | 大连起重矿山机械有限公司 | 铝电解起重设备直立式打壳机 |
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DE2530831C2 (de) * | 1975-07-10 | 1982-06-16 | Gewerkschaft Eisenhütte Westfalia, 4670 Lünen | Vorrichtung zum Einblasen von Gas, wie insbesondere Luft, in ein elektrolytisches Aluminiumschmelzbad sowie zum Brechen der Kruste des Schmelzbades |
US4053384A (en) * | 1975-10-10 | 1977-10-11 | Siegmund Frederik W | Device for changing anode blocks, crust breaking and charging aluminum furnaces |
NL8801742A (nl) * | 1988-07-08 | 1990-02-01 | Nkm Nl Kraanbouw | Inrichting voor het vevangen van de anoden van electrolyse-cellen, in het bijzonder voor de bereiding van aluminium. |
DE4118304A1 (de) * | 1991-06-04 | 1992-12-24 | Vaw Ver Aluminium Werke Ag | Elektrolysezelle zur aluminiumgewinnung |
US5294318A (en) * | 1992-07-15 | 1994-03-15 | Louis A. Grant, Inc. | Crustbreaking assembly for aluminum electrolysis cells |
EP1028084B1 (fr) * | 1999-02-12 | 2003-07-02 | Reel S.A. | Dispositif de levage pour le remplaçement des anodes dans les cuves d'électrolyse pour la production d'aluminium |
DE202004008474U1 (de) * | 2004-05-27 | 2004-07-29 | Festo Ag & Co. | Krustenbrecherzylinder |
FR2872176B1 (fr) * | 2004-06-25 | 2006-07-28 | Ecl Soc Par Actions Simplifiee | Racleur d'un organe de percage d'une croute de bain d'une cellule d'electrolyse destinee a la production d'aluminium |
DE102004033964B3 (de) * | 2004-07-14 | 2006-03-30 | Bosch Rexroth Ag | Einrichtung und Verfahren zum Betrieb einer Krustenbrechvorrichtung für Metallschmelzen |
CN2918451Y (zh) * | 2006-06-08 | 2007-07-04 | 山东铝业股份有限公司 | 新型液压压壳机 |
CN201128767Y (zh) * | 2007-11-27 | 2008-10-08 | 贵阳铝镁设计研究院 | 变幅四连杆打壳机构 |
CN201217700Y (zh) * | 2008-06-30 | 2009-04-08 | 中国有色(沈阳)冶金机械有限公司 | 一种打壳机装置 |
CN201358309Y (zh) * | 2009-02-26 | 2009-12-09 | 贵阳铝镁设计研究院 | 一种新型电解天车用的打壳装置 |
US8409409B2 (en) * | 2009-03-26 | 2013-04-02 | Alcoa Inc. | System, method and apparatus for measuring electrolysis cell operating conditions and communicating the same |
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CN202047146U (zh) * | 2011-04-11 | 2011-11-23 | 大连起重矿山机械有限公司 | 铝电解起重设备磁锁气缸打壳机 |
-
2014
- 2014-01-27 FR FR1400173A patent/FR3016898B1/fr active Active
-
2015
- 2015-01-23 AU AU2015208861A patent/AU2015208861A1/en not_active Abandoned
- 2015-01-23 CA CA2935486A patent/CA2935486A1/fr not_active Abandoned
- 2015-01-23 RU RU2016134748A patent/RU2016134748A/ru not_active Application Discontinuation
- 2015-01-23 WO PCT/IB2015/000075 patent/WO2015110907A1/fr active Application Filing
- 2015-01-23 CN CN201580006059.4A patent/CN105940148A/zh active Pending
- 2015-01-23 EP EP15739799.3A patent/EP3099846A4/fr not_active Withdrawn
-
2016
- 2016-07-19 DK DKPA201670543A patent/DK179337B1/en not_active IP Right Cessation
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CA1316793C (fr) * | 1988-06-14 | 1993-04-27 | Gianfranco Zannini | Marteau actionne par un systeme hydraulique, destine a etre utilise notamment en milieux poussiereux, corrosif ou similairement hostile |
CA2093338A1 (fr) * | 1990-10-04 | 1992-04-05 | James H. Nordquist | Alimentateur continu de minerai pour cuves d'electrolyse soderberg |
CN202047145U (zh) * | 2011-04-11 | 2011-11-23 | 大连起重矿山机械有限公司 | 铝电解起重设备直立式打壳机 |
Non-Patent Citations (1)
Title |
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See also references of EP3099846A4 * |
Also Published As
Publication number | Publication date |
---|---|
FR3016898A1 (fr) | 2015-07-31 |
CA2935486A1 (fr) | 2015-07-30 |
EP3099846A4 (fr) | 2017-12-20 |
EP3099846A1 (fr) | 2016-12-07 |
RU2016134748A (ru) | 2018-03-05 |
RU2016134748A3 (fr) | 2018-10-03 |
FR3016898B1 (fr) | 2017-08-04 |
CN105940148A (zh) | 2016-09-14 |
AU2015208861A1 (en) | 2016-07-28 |
DK201670543A1 (en) | 2016-09-05 |
DK179337B1 (en) | 2018-05-14 |
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