EP4079939A1 - Clip d'anode, ainsi qu'agencement de sécurisation - Google Patents

Clip d'anode, ainsi qu'agencement de sécurisation Download PDF

Info

Publication number
EP4079939A1
EP4079939A1 EP21169909.5A EP21169909A EP4079939A1 EP 4079939 A1 EP4079939 A1 EP 4079939A1 EP 21169909 A EP21169909 A EP 21169909A EP 4079939 A1 EP4079939 A1 EP 4079939A1
Authority
EP
European Patent Office
Prior art keywords
anode
levers
component
clamp
safety
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
Application number
EP21169909.5A
Other languages
German (de)
English (en)
Inventor
Rietz Florian
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Reel GmbH
Original Assignee
Reel GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Reel GmbH filed Critical Reel GmbH
Priority to EP21169909.5A priority Critical patent/EP4079939A1/fr
Publication of EP4079939A1 publication Critical patent/EP4079939A1/fr
Pending legal-status Critical Current

Links

Images

Classifications

    • 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
    • C25C3/16—Electric current supply devices, e.g. bus bars

Definitions

  • the present invention relates to an anode clamp for fixing an anode or an anode rod to an anode frame, for use in a furnace for the electrolytic production of aluminum, according to the preamble of claim 1. Furthermore, a safety arrangement is provided, which serves to secure the anode clamp.
  • Furnaces for the electrolytic production of aluminum normally have anodes attached to anode rods which allow the anodes to be immersed in the electrolytic bath for the electrolytic process.
  • anode clamps are used, which are placed on a hook on the anode frame.
  • the anode clamps have two levers which are articulated to one another via a shaft.
  • the levers can be pivoted in relation to one another via a clamping screw, with the levers being pressed in a fixing position of the anode clamp with a pressing surface against the anode rod in such a way that the latter is fastened to the anode frame in a non-positive manner.
  • a gripping device which grips the anode clamp in a suitable manner is provided for placing or removing the anode clamps on or from the hook.
  • a safety mechanism is provided which, after the gripping device has been placed on the anode clip, ensures that the anode clip that has been gripped does not fall off the gripping device. Examples of such constructions are EP 1 627 099 B1 , EP 1 876 265 B1 , US 2015/0114833 A1 or FR 3 050 462 B1 described.
  • the falling of the anode clamp taken during transport of the anode clamp is doing prevented by the safety mechanism in that, in the release position of the anode clamp, a hook means on the anode clamp engages in a locking area on the gripping device. Furthermore, a fork-shaped receptacle is provided on the gripping device, which rests on pins protruding laterally from the shaft in order to prevent axial slipping.
  • a safety arrangement formed by the interaction of the anode clamp with the safety mechanism of the gripping device cannot reliably ensure that the anode clamp that has been gripped does not fall off the gripping device during transport, thereby causing unwanted damage .
  • the object of the invention is therefore to provide an anode clamp and a safety arrangement which enable reliable transport of the anode clamp in a simple manner.
  • an anode clamp has at least one rotatably mounted safety component with at least one pressure arm, the safety component interacting with at least one of the levers of the anode clamp in such a way that the safety component which is defined by a shank, and the pressure arm of the fuse component when the anode clamp is moved into a release position, it is pivoted in the direction of the hook means in order to secure a hook means hooked into the locking area of the gripping device.
  • a safety arrangement made up of an anode clamp according to the invention and a gripping device with a safety mechanism for gripping and carrying the anode clamp, the safety mechanism being formed by the locking area which is arranged on a traverse of the gripping device and into which the hook means on one of the crossbeams of the anode clamp in the Release position of the anode clamp can intervene, wherein the pressure arm of the fuse component pivots in the release position of the anode clamp in such a way towards the traverse that the traverse is enclosed between the pressure arm and the hook means.
  • the additional securing component ensures that the hooking means can be additionally secured on the traverse of the gripping device, even if there are signs of wear or if the setting is incorrect.
  • This can be achieved in a simple manner by adding an additional component, with existing anode clamps being easy to retrofit depending on the structure of the additional component.
  • the safety component is easy to actuate, with the movement of the safety component advantageously being coupled to the movement of the anode clamp, so that no further complicated synchronization or additional actuations are necessary for the safety. Rather, the fuse is formed automatically when the anode clamp is in the release position or is brought into this position. When the anode clamp is moved into the fixing position, the pressure arm of the safety component preferably pivots away from the hook means or the traverse to release the hook means.
  • the pressure arm is part of a safety lever, the safety lever being rotatably mounted via a bearing area on the shaft, which also pivotally connects the levers, and resting via a cam on one of the levers of the anode clamp in order to carry the safety component when the lever is pivoted about the axis of rotation.
  • the securing component and the levers thus interact with one another via a cam, via which the movement of the levers can be transmitted to the pressing arm in a simple manner and automatically when the lever is moved.
  • the cam can rest, for example, on one of the crossbeams of the respective lever, which offers an effective transmission surface. The automatic inclusion of the traverse in the release position can therefore be done with few resources and without additional effort.
  • the safety component has a bearing area with which the safety component is rotatably mounted on the shaft or about the axis of rotation, the bearing region preferably being formed by two legs on the safety lever, between which the shaft is arranged , the legs slidably resting on the shank to allow twistability of the securing component.
  • the safety component has at least one safety lever, but preferably exactly two safety levers, each with a pressure arm and a bearing area, which are arranged parallel to one another and brought into overlap, with a gap is formed between the safety levers.
  • the bearing area is also preferably made for the bearing area to have an open end, with the open end preferably being designed in such a way that the securing component can be placed on the shaft via the open end.
  • the safety component can easily be subsequently attached to the shank by being placed or pushed onto the shank and then being held on it in a suitable rotatable manner.
  • the securing component has a holding means, with the holding means holding the securing component rotatably mounted on the shaft via the bearing area on the shaft, with the holding means preferably closing the bearing area on one side, i.e. the open ends of the bearing area with one another connects, so that the shaft is preferably completely enclosed.
  • the holding means is detachably fastened to the safety component, for example via pins or bolts which hold the holding means detachably at the open ends or legs of the bearing area. This means that it is easy to retrofit but also to be interchangeable.
  • the holding means is placed with a central area around the shank and rests with the central area sliding on a surface of the shank in order to enable rotation of the securing component held on the shank, the holding means preferably being embodied as a sheet metal is.
  • the fuse component can be produced simply and inexpensively, and it is also simple Assembly guaranteed, which can also ensure reliable positioning and twistability of the fuse component at the same time.
  • wires placed around the shaft can also be provided as holding means.
  • the retaining element starting from the central area, runs with a constriction through an intermediate space between two safety levers and then has a widened end area which protrudes beyond the two safety levers on both sides.
  • a simple and secure connection of the holding means to the safety levers can be ensured if they are arranged in pairs, for example.
  • high stability of the securing component can be ensured if the widened end area has finger-like extensions between which the securing levers are arranged.
  • an anode clamp 1 which serves to figure 2 to fix the anode rod 2 shown schematically by adhesion or by clamping to an anode frame R of a furnace for the electrolytic production of aluminum.
  • the anode clamp 1 has two levers, an upper lever 3 and a lower lever 4, each of which consists of two side walls 3a, 3b, 4a, 4b.
  • the side walls 3a, 3b, 4a, 4b of a lever 3, 4 are connected to one another by upper and lower crossbeams 5, 6, respectively.
  • the two levers 3, 4 are connected to one another in an articulated manner via a shaft 7, with a longitudinal central axis of the shaft 7 defining a main axis or axis of rotation A of the articulated connection.
  • the levers 3, 4 are operatively connected at the end via a turnbuckle or a clamping screw 8 with opposing threads in such a way that the levers 3, 4 pivot like a clamp about the axis of rotation A towards or away from each other when a screw head 9 of the clamping screw 8 is rotated.
  • This allows the anode clamp 1 to be placed in an in 2 illustrated fixing position S1 (lever 3, 4 open at the end) or in an in 3 shown release position S2 (lever 3, 4 ends moved towards each other) are brought.
  • the anode rod 2 is pressed in the fixing position S1 of the anode clamp 1 via an end-side pressing surface 11 on the two levers 3, 4 against the anode frame R and thereby fixed to it in a non-positive manner.
  • the release position S2 see 3
  • the clamping is released and the anode rod 2 is thereby released and the anode clamp 1 can be removed from the hook 10 or placed on it.
  • a gripping device 20 which can grip the anode clamp 1, the gripping device 20 having a securing mechanism 21 which is used for this purpose serves to secure the anode clamp 1 gripped by the gripping device 20 from falling when being carried.
  • the safety mechanism 21 is formed by two side walls 21a, 21b, which each have a fork-shaped receptacle 22 on the underside, with which the gripping device 20 can be supported on the pin 7a of the shaft 7 on both sides.
  • the side walls 21a, 21b of the safety mechanism 21 are also connected to one another via a traverse 23, with the traverse 23 having a locking area 24.
  • the upper lever 3 of the anode clamp 1 is pivoted in the fixing position S1 by opening the ends of the levers 3, 4 via the clamping screw 8 in such a way that a hook means 5a, which is formed by a hook-shaped edge of the upper cross member 5, is not engages in the locking area 24 on the traverse 23.
  • the gripping device 20 with the securing mechanism 21 can therefore be lifted upwards from the anode clamp 1 in this fixing position S1, so that the anode clamp 1 is not yet taken along by the gripping device 20.
  • the described interaction of the securing mechanism 21 of the gripping device 20 with the anode clamp 1 forms a securing arrangement 50, which is expanded within the scope of the invention by an additional securing component 30 compared to the prior art, as described below: Due to wear or due to an incorrect setting, the anode clip 1 gripped by the gripping device 20 can fall off the gripping device 20 despite the securing mechanism 21 when being carried. In order to prevent this, the fuse component 30 is additionally attached to the anode clamp 1 .
  • the fuse component 30 has a holding element 31 with which the fuse component 30 is held rotatably about the axis of rotation A on the shaft 7 of the anode clamp 1 .
  • the retaining element 31 is designed as a bent sheet metal 31a, which is placed flatly around the shaft 7 with a central region 31e and can slide along its surface 7b, as shown in FIG Figure 2a shown.
  • any other holding element 31 can also be provided. which also holds the securing component 30 on the shaft 7 while at the same time being able to rotate about the axis of rotation A.
  • the retaining element 31 is detachably fastened to locking levers 32 of the locking component 30, which locking levers 32 overlap in pairs.
  • the as a bent sheet 31a the holding element 31 designed is narrowed starting from the central region 31e above and below the shaft 7 and runs with the narrowings 31b through an intermediate space 32a between the two safety levers 32.
  • the holding means 31 protrudes above and below the safety levers 32 from the intermediate space 32a and then merges into a flared end portion 31c.
  • the widened end area 31c has finger-like extensions 31d, between which the two safety levers 32 are arranged, so that a suitable locking of the holding element 31 or the safety levers 32 is achieved.
  • the metal sheet 31a with the respective constriction 31b is held in the corresponding intermediate space 32a via pins 32b, the two widened end regions 31c preventing the metal sheet ends from slipping out through the intermediate space 32a.
  • the securing levers 32 arranged in pairs are rotatably held on the shaft 7 via the respective holding element 31 .
  • the securing lever 32 each have a bearing area 33, which is formed by two opposite legs 33a, 33b, between which the shaft 7 is arranged or which receive the shaft 7 between them, the legs 33a, 33b on the cylindrical surface 7b of the shaft 7 slide.
  • the retaining element 31 prevents the safety lever 32 from slipping off the shaft 7 because this "seals" the open ends 33c of the bearing portion 33 in the manner described above.
  • the securing component 30 can be assembled in such a way that the securing levers 32 with the legs 33a, 33b are pushed onto the shaft 7, then the sheet metal 31a, or another holding element 31, is fastened via the pins 32b and thus the end open storage areas 33 are closed and the securing levers 32 are rotatably held on the shaft 7 via the holding element 31 .
  • Existing anode clamps 1 can thus be easily retrofitted if the dimensions of the fuse component 30 are appropriately adapted to the construction of the anode clamp 1 .
  • the securing component 30 can also be arranged rotatably on the shaft 7 as an integral part of the anode clamp 1 without the possibility of subsequent assembly or disassembly, with the holding element 31 then being connected directly to the securing levers 32 in a corresponding manner or as an integral part thereof is.
  • the safety levers 32 also have a cam 34 or wing, which rests on the lower cross member 6 of the lower lever 4, so that by pivoting the lower lever 4 with a corresponding rotation of the screw head 9, the safety levers 32 can also be rotated around the Pivot axis of rotation A with.
  • the movement of the safety levers 32 or of the safety component 30 is thus coupled to the opening and closing of the levers 3, 4 or to the positions S1, S2 of the anode clamp 1. In the two positions S1, S2 of the anode clamp 1, this also results in different positions of the safety lever 32 or of the safety component 30, as in FIGS figures 2 and 3 or the Figures 4 and 5 shown.
  • the safety levers 32 have pressure arms 35 on the sides opposite the cams 34, which in the fixing position S1 of the anode clamp 1 in 2 illustrated embodiment are pivoted in the direction of the clamping screw 8 or away from the hook means 5a and the traverse 23 and are optionally supported on the clamping screw 8 .
  • the securing component 30 is carried along via the cams 34 resting on the lower crossbeam 6 in such a way that the pressure arms 35 pivot forward (away from the clamping screw 8) onto the hook means 5a or the traverse 23.
  • the pressure arms 35 are moved towards or away from the hook means 5a in the manner of pliers, which, as described below, leads to an additional securing of the locked anode clamp 1.
  • the pressure arms 35 come into contact with a pressure point 23a on the traverse 23 on the back when the anode clamp 1 is moved into the release position S2, or at least approach this.
  • the traverse 23 of the gripping device 20 is held between the pressure arms 35 of the securing component 30 and the hook means 5a on the upper lever 3 of the anode clamp 1, which engages or is hooked into the locking area 24 on the traverse 23 in the release position S2. enclosed like pincers.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Electrolytic Production Of Metals (AREA)
EP21169909.5A 2021-04-22 2021-04-22 Clip d'anode, ainsi qu'agencement de sécurisation Pending EP4079939A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP21169909.5A EP4079939A1 (fr) 2021-04-22 2021-04-22 Clip d'anode, ainsi qu'agencement de sécurisation

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP21169909.5A EP4079939A1 (fr) 2021-04-22 2021-04-22 Clip d'anode, ainsi qu'agencement de sécurisation

Publications (1)

Publication Number Publication Date
EP4079939A1 true EP4079939A1 (fr) 2022-10-26

Family

ID=75639813

Family Applications (1)

Application Number Title Priority Date Filing Date
EP21169909.5A Pending EP4079939A1 (fr) 2021-04-22 2021-04-22 Clip d'anode, ainsi qu'agencement de sécurisation

Country Status (1)

Country Link
EP (1) EP4079939A1 (fr)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2005009685A1 (fr) * 2003-07-23 2005-02-03 Pintab Services Pty Ltd Dispositif de fusion
EP1627099B1 (fr) 2003-05-12 2011-02-16 E.C.L. Organe de manutention de connecteurs d'electrode de cellules d'elctrolyse destinees a la production d'aluminium
WO2012032234A1 (fr) * 2010-09-08 2012-03-15 E.C.L. Organe de manutention securisee de connecteurs de cellules d'electrolyse destinees a la production d'aluminium
EP1876265B1 (fr) 2006-06-14 2013-06-12 NKM Noell Special Cranes Connecteur pour le raccordement mécanique et électrique d'une anode au cadre anodique d'une cellule de production d'aluminium et dispositif de préhension et de serrage/desserrage d'un tel connecteur
US20150114833A1 (en) 2012-04-24 2015-04-30 Rio Tinto Alcan International Limited Preheating connector
FR3050462B1 (fr) 2016-04-26 2020-12-25 Nkm Noell Special Cranes Gmbh Connecteur pour le raccordement mecanique et electrique d'une anode au cadre anodique d'une cellule de production d'aluminium

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1627099B1 (fr) 2003-05-12 2011-02-16 E.C.L. Organe de manutention de connecteurs d'electrode de cellules d'elctrolyse destinees a la production d'aluminium
WO2005009685A1 (fr) * 2003-07-23 2005-02-03 Pintab Services Pty Ltd Dispositif de fusion
EP1876265B1 (fr) 2006-06-14 2013-06-12 NKM Noell Special Cranes Connecteur pour le raccordement mécanique et électrique d'une anode au cadre anodique d'une cellule de production d'aluminium et dispositif de préhension et de serrage/desserrage d'un tel connecteur
WO2012032234A1 (fr) * 2010-09-08 2012-03-15 E.C.L. Organe de manutention securisee de connecteurs de cellules d'electrolyse destinees a la production d'aluminium
US20150114833A1 (en) 2012-04-24 2015-04-30 Rio Tinto Alcan International Limited Preheating connector
FR3050462B1 (fr) 2016-04-26 2020-12-25 Nkm Noell Special Cranes Gmbh Connecteur pour le raccordement mecanique et electrique d'une anode au cadre anodique d'une cellule de production d'aluminium

Similar Documents

Publication Publication Date Title
EP1020395B1 (fr) Pince pour agripper des charges par dessus
DE3424985C2 (fr)
DE60207945T2 (de) Eiskrampen zum Bergsteigen mit Befestigungsvorrichtung mit seitlichem Hebel
DE3514562A1 (de) Balken-klemmvorrichtung
DE19860481A1 (de) Aufnahmevorrichtung
DE2119951C3 (de) Scharnierhebeklaue
DE3517620C2 (de) Plastik-Clip
DE2614961C3 (de) Karabinerhaken, insbesondere zum Transport von schweren Außenlasten an Hubschraubern
DE2709272A1 (de) Schraubklemme
EP0499708A1 (fr) Dispositif pour l'assemblage décrochable d'un bras de compas avec un bras auxiliaire
EP4079939A1 (fr) Clip d'anode, ainsi qu'agencement de sécurisation
DE2434613C2 (de) Zange zur hängenden Halterung von Glasscheiben
EP2785629B1 (fr) Dispositif de montage ou de démontage d'une grue
DE1481800B1 (de) Hebeklaue
DE3540867A1 (de) Plastik-clip
AT408467B (de) Stützenkopf
DE102017003470A1 (de) Vorrichtung zum Anheben und Absenken eines Flächenelements
DE653799C (de) Geruestklemme mit einem U-foermigen Kupplungsglied
DE609394C (de) Grubenstempel
DE8529661U1 (de) Befestiger
DE4116804C2 (de) Schrittschaltvorrichtung für Transportgreifer
EP3246202B1 (fr) Point d'ancrage
DE10042971A1 (de) Aufnahmevorrichtung für von oben zu greifende, mit einer Tragöse versehene Lasten, insbesondere Betonträger
DE2821747C2 (de) Tragklaue für den Untertagebetrieb
DE4113538A1 (de) Verstellbare haltevorrichtung fuer die sitzrueckenlehne eines kinderwagens

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION HAS BEEN PUBLISHED

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE

17P Request for examination filed

Effective date: 20221104

RBV Designated contracting states (corrected)

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

P01 Opt-out of the competence of the unified patent court (upc) registered

Effective date: 20230731

RAP3 Party data changed (applicant data changed or rights of an application transferred)

Owner name: REEL GMBH