CN101040063A - Method for changing anode in an electrolytic aluminium production cell including adjusting the position of the anode and servicing machine therefor - Google Patents

Method for changing anode in an electrolytic aluminium production cell including adjusting the position of the anode and servicing machine therefor Download PDF

Info

Publication number
CN101040063A
CN101040063A CNA2005800351952A CN200580035195A CN101040063A CN 101040063 A CN101040063 A CN 101040063A CN A2005800351952 A CNA2005800351952 A CN A2005800351952A CN 200580035195 A CN200580035195 A CN 200580035195A CN 101040063 A CN101040063 A CN 101040063A
Authority
CN
China
Prior art keywords
anode
handling tool
point
change
reference point
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
CNA2005800351952A
Other languages
Chinese (zh)
Inventor
A·范阿克
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.)
Fives ECL SAS
Original Assignee
ECL SAS
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 ECL SAS filed Critical ECL SAS
Publication of CN101040063A publication Critical patent/CN101040063A/en
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
    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25C—PROCESSES FOR THE ELECTROLYTIC PRODUCTION, RECOVERY OR REFINING OF METALS; APPARATUS THEREFOR
    • C25C7/00—Constructional parts, or assemblies thereof, of cells; Servicing or operating of cells
    • C25C7/06—Operating or servicing

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)

Abstract

The invention concerns a method for changing the anode of an igneous electrolytic aluminium production cell (2) which consists in using at least one anode handling tool (13) comprising a positioning member (13b) and a gripping member (13a). The invention is characterized in that, during the operations for replacing a specific used anode (20') with a replacement anode (20''), it consists in determining the position of the replacement anode (20'') from a specific set of measurements of the position of a fixed point Po located on at least one anode handling tool (13) relative to a specific set of reference points P located on separate specific objects of the anode handling tool. The invention also concerns a servicing machine for implementing the method. The invention enables the handling operations required for determining the replacement anode to be substantially reduced.

Description

Be used for changing the anode in electrolysis aluminium metallurgy pond, the multi-functional unit that comprises the method for adjusting anode position and realize this method
Technical field
The present invention relates to come the Hall-H é roult method of aluminium metallurgy by fusion electrolysis.More specifically, relate to anode change and be designed for the multifunction crane that in aluminium metallurgy factory, carries out anode change.
Background technology
Aluminium is to come in industrial production according to the Hall-H é roult method known by fusion electrolysis in electrolyzer.French patent application FR 2806742 (corresponding to U.S. Pat 6409894) has described and has been used for the installation of electrolytic aluminium plant of aluminium metallurgy.
According to the most general technology, electrolyzer has a plurality of " prebake " anodes by carbonaceous (carbonaceous is not a carbon system) material preparation, should be consumed in the electrolytic reduction reaction process of aluminium by " prebake " anode.Anodic consumes gradually and need safeguard electrolyzer, wherein particularly uses new anode change inefficacy anode.
To the interference of electrolyzer operation, preferably, new anode is laid in place when changing anode, made that another anode in its lower surface and the pond is in same level in order to be limited in.
Usually mainly come new anode is aimed at installation accurately by means of manual operation.Typically, with the chalk line with anode superstructure on the anode rod that lost efficacy of the corresponding position of calibration note really mark.Take out the inefficacy anode and it is lowered on the reference surface from the pond, this reference surface typically is metal sheet.Write down the level of chalk on this bar, take out the inefficacy anode, and on reference surface, lay new anode in place.Bar chalk line is drawn at level place at the record of new anode rod.New anode is placed on the anode superstructure, makes to calibrate really on its chalk line and the anode superstructure and remember the same level that is in.These manipulation requires operator safeguards in the zone of using the anode handling tool, and the operator is faced such as loading these operation institute inherent risks such as unhook and liquid metal sputter.
It is also known that the anode handling tool can be equipped with position transducer, this position transducer can be measured the elongation of anode handling tool in the anode change operating process.In this case, measure the operating distance of this instrument when taking out the inefficacy anode, then the inefficacy anode is placed on the reference surface, and measure the elongation of this instrument when this anode is placed on the reference surface once more.Fetch the inefficacy anode, new anode is placed on the reference surface, and measure when anode is placed on the reference surface once more the elongation of this instrument.Difference between the elongation that records for last twice is added on the elongation that records for the first time, determining when new anode being laid in electrolyzer when in place, the residual extension amount that should apply handling tool also.
These different mode of operation need a plurality of anode operation and reference surface need be transferred to another work area from a work area.Expend the time length that has prolonged attended operation on electrolyzer in these operational time significantly, and Chi Gai is in the time cycle of open mode, this has reduced the efficient of the waste water collection device that is used to collect the waste water that electrolyzer generates.
Therefore, the applicant seeks to avoid the program and the device of these shortcomings.
Summary of the invention
Target of the present invention is a kind of fusion electrolysis aluminium metallurgy pond anodic method that is used for changing, this pond comprises anode superstructure and a plurality of anode, each anode all is equipped with metallic rod, wherein, this method uses at least one to comprise the anode handling tool of locating device and grip device, replace inefficacy anode that at least one is determined with at least one alternative anode, and should substitute anode and put into electrolyzer allocation really.
According to the present invention, by being positioned at the point of fixity P at least one anode handling tool 0Determine that with respect to one group { alternative anodic position is determined in one group of the P} position measurement of determining to reference point, and this determines that reference point is positioned at and be independent of the anode handling tool really on the earnest body, and relevant with definite reference position of anode handling tool.
More accurately, anode change method according to the present invention is characterised in that:
For at least one anode handling tool, selection one is fixedly attached to the point of fixity P of described instrument 0
Select one group of middle reference position of determining of anode handling tool, and each position of described group is independent of the anode handling tool the middle reference point on the earnest body is relevant really with being positioned at;
Select the final reference position with the anode handling tool of the described definite position corresponding of alternative anodic, and this reference position and being positioned at is independent of the anode handling tool final reference point P of determining on the earnest body really FRelevant;
The anode handling tool is placed on each described middle reference position, and, measures the point of fixity P of described instrument for each position 0Relative position with respect to reference point in the middle of corresponding;
By the measurement of described relative position, determine the point of fixity P of handling tool 0With respect to the final reference point P that determines FFinal relative position, this final reference point P FCorresponding to substituting the described definite position of anodic in the electrolyzer;
By means of handling tool point of fixity P 0With respect to final reference point P FThe measurement of at least one relative position adjust and substitute the anodic position, thereby with described tool positioned on described final relative position.
Preferably, find range by remote measurement and to carry out described measurement,, and preferably find range by laser telemetry typically by optics, acoustics or radiotelemetry range finding.Optics remote measurement range finding can be based on visible light or invisible light.
The applicant intends the anode handling tool is determined anode position in the anode change process as reference element, thereby, can in common inefficacy anode change operation, carry out determining necessary measurement for this.So, the present invention can limit the required charge and discharge operations that is used for determining to substitute anode position significantly.
Preferably, use same anode handling tool to be used for described relative position measurement, can have only unique point of fixity P like this 0
Another target of the present invention is the multi-functional unit that is used for carrying out in a series of fusion electrolysis aluminium metallurgys pond the anode change operation, this pond comprises a plurality of anodes, each anode is equipped with metallic rod, described multi-functional unit comprises the anode handling tool that contains locating device and grip device, this anode handling tool is characterised in that, it comprises and is used to measure the point of fixity P that is positioned on the anode handling tool 0With respect to be positioned at be independent of the anode handling tool really at least one on the earnest body determine the device of the position of reference point P.
Advantageously, realize the anode change method by means of multi-functional unit according to the present invention.
Another target of the present invention is the multifunction crane that is used for fusion electrolysis aluminium metallurgy factory, and it comprises that walking crane and at least one are according to multi-functional unit of the present invention.
Description of drawings
Below with reference to accompanying drawing the present invention is described in more detail.
Fig. 1 is a sectional view, shows the typical potroom that is used for aluminium metallurgy, and comprises a multifunction crane that schematically shows.
Fig. 2 shows the sectional view of the typical electrolyzer that is used for aluminium metallurgy.
Fig. 3 has schematically shown the side-view of multifunction crane.
Fig. 4 schematically shows the position measurement according to a preferred embodiment of the present invention.
Fig. 5 to 8 shows the embodiment according to anode change program of the present invention.
Being used for the electrolytic aluminium plant of aluminium metallurgy comprises the liquid aluminium output zone, and this zone comprises one or more potrooms (1).As shown in Figure 1, each potroom (1) all comprises electrolyzer (2) and at least one multifunction crane (PTA) (4).
Electrolyzer (2) is in a row usually or become row to place, and each row or each row typically comprise the groove more than 100, and these grooves are electrically connected with series system by means of connection conductors.Place pond (2), to reserve open circulation passage (3) along the potroom length direction.
As shown in Figure 2, each electrolyzer (2) all comprises groove (2 '), is called as supporting structure (35) and a plurality of anode (20,20 ') of " superstructure ".Groove (2 ') comprising: box hat (26); Internal protection layer (27,28), it is made of the block that refractory materials is made usually; And cathode assembly (29,30), it comprises the block of being made by carbonaceous material (29) that is called as " negative electrode block ", and metal connecting strip (30), carries the electric conductor (31) of Faradaic current to be connected on this metal connecting strip.Anode (20,20 ') comprises at least one anode block (21,21 ') and metallic rod (22,22 ') by the carbonaceous material preparation of prebake.Anode block (21,21 ') typically is parallelepiped shape.Bar (22,22 ') typically is fixed on anode block (21 by retaining element (22a, 22a '), 21 ') on, retaining element (22a, 22a ') is commonly called " multipole " (" multipode "), its (typically by means of cast iron) is anchored on the anode block (21,21 ').This anode (20,20 ') removably is fixed on the moving metal framework (23) that is called " anode superstructure " by mechanical fastening system (24,25), and mechanical fastening system (24,25) typically comprises junctor (24) and suspension hook (25).This anode superstructure (23) is supported by superstructure (35), and is fixed on (not shown) on the electric conductor that is used for carrying Faradaic current.
Electrolyzer (2) generally includes convering system (36), and this convering system comprises that typically a series of being used for is limited in the lid in the pond with waste water and is used for the device (not shown) to processing enter with waste water row.
Internal protection layer (27,28) and negative electrode block (29) constitute crucible in groove (2 '), when this crucible can move in the pond, hold electrolytic solution (33) and one deck liquid metal (32).Usually, the cap rock of aluminium and solid solution (34) covers electrolytic solution and some or all anodes.
Anode (20,20 '), more properly, anode block (21,21 '), part immerses in the electrolytic solution (33) of the aluminium that contains fusing.Anode lower surface (21a, 21a ') is the plane substantially typically, and is parallel to the upper surface (29 ') of the basic horizontal of negative electrode block (29).Distance between anode lower surface and the negative electrode block upper surface is called " anode-cathode distance ", and it is an important parameter in regulating electrolyzer.The anode-cathode distance is very accurately controlled usually.
In use, anode block (21,21 ') is consumed gradually.In order to remedy this consumption, working specification comprises and equably anode superstructure (23) is moved down and reduce anode (20,20 ') gradually.And as shown in Figure 2, anode block (21,21 ') has consumption in various degree usually.Therefore, when changing anode, (20 ") are with respect to the position of anode superstructure (23) all will to adjust the alternative anode that is commonly called " new anode " usually at every turn.More properly, adjust anode position, thereby with anode block (21,21 ', 21 " (21a, 21a ', 21a ") place at grade on so-called D score surface), in other words, should " lower surface " refer to that the anode block will be immersed in the electrolytic solution (33) that is included in the electrolyzer (2) and is parallel to the surface of anode block of the upper surface (29 ') of negative electrode block (29).In the reality, (20 ") are placed as and make when its operating temperature has reached, and its lower surface (lower surface of the inefficacy anode (20 ') that 21a ") and it are changed (21a ') is in same level will to substitute anode.The anode block (21,21 ', (21a, 21a ', 21a ") they are the plane to the described lower surface of 21 ") usually substantially.
Multifunction crane (4) is used for (2) enterprising line operate in the pond, such as changing anode or with electrolytic solution that pulverizes and AlF 3Be full of the electrolyzer loading hopper.It can also be used to load and unload multiple loading, such as groove element, liquid metal bag or anode.
As shown in figs. 1 and 3, multifunction crane (4) comprises the walking crane (5) and the multi-functional unit (6) that can move in electrolyzer (2) top.Multi-functional unit (6) comprises removable overhead traveling crane (7) and Multi Role Aircraft pack module (8), and a plurality of loading and unloading and attending device (10) are installed on this Multi Role Aircraft pack module (8), such as instrument (shovel, wrench, crust breaking machine etc.).As shown in Figure 3, Multi Role Aircraft pack module (8) typically comprises capstan head (8 '), and capstan head (8 ') is installed on the overhead traveling crane (7), thereby in use, it can rotate around vertical axes A.Loading and unloading and attending device (10) typically are fixed on the capstan head.Multi Role Aircraft pack module (8) can also comprise the watch-keeping cubicle (16) of using for the operator.
Walking crane (5) is placed on the moving track (9,9 '), and circulation comes and goes thereon, and described track (9,9 ') is parallel to each other and be parallel to workshop (hall) main shaft (with the ranks direction in pond) and place.So, walking crane (5) can move along the length of potroom, and overhead traveling crane (7) can move along the length of walking crane (5).
As shown in Figure 3, the multi-functional unit (6) that is used for anode change operation is equipped with definite one group of instrument (10), promptly typically is crust breaking machine (11a), bucket type shovel (12a), anode grip device (being called " anode pincers ") (13a) and the funnel (14) that scalable transfer lime (15) are installed.Crust breaking machine (11a) is used for pulverizing aluminum hull and often covers some or all anodic solid state electrolytic solution (34) of pond; Bucket type shovel (12a) is used for after removing the inefficacy anode, clears up this anode position by removing the solid matter (such as broken shell sheet and aluminium flake) that is positioned at this position; Anode pincers (13a) are used for coming grasping and operation anode by their bar, especially for removing the inefficacy anode from electrolyzer, and new anode are put into electrolyzer; Scalable transfer lime (15) is used for aluminium and/or the electrolytic solution that pulverizes are sent into electrolyzer, thus new anode lay in place after, form protective layer.Crust breaking machine (11a), bucket type shovel (12a) and anode pincers (13a) typically are installed in locating device (11b, 12b, lower end 13b) such as scalable post or telescopic boom.The assembly of anode grip device (13a) and locating device (13b) represented to comprise in the term of " anode handling tool " (13).
The method of anode change that comprises the electrolysis aluminium metallurgy pond (2) of a plurality of anodes (20,20 ') typically comprises following basic step:
Multi-functional unit is placed near the inefficacy anode of determining (20 ');
To be positioned near the lid (36) of inefficacy anode (20 ') removes;
Make the anode superstructure (23) of fixed anode (20,20 ') not movable;
By means of anode handling tool (13), grasp the metallic rod of inefficacy anode (20 ') more accurately by means of grip device (13a), and;
Inefficacy anodic mechanical fastening system (24) is taken apart;
Remove the inefficacy anode (20 ') of electrolyzer by means of described handling tool (13);
Inefficacy anode (20 ') is placed into definite position downwards;
(20 "), this handling tool (13) are usually with to be used to load and unload inefficacy anodic instrument identical grasp to substitute anode by means of handling tool (13);
Be identified for substituting the anode (position of 20 ");
(at first 20 ") put into the space that occupied by inefficacy anode allocation really will to substitute anode;
(20 ") are fixed on the anode superstructure (23) will to substitute anode by means of mechanical fastening system (24).
According to the present invention, from being positioned at the definite point of fixity P on the anode handling tool (13) 0Measure beginning with respect to determine one group that is positioned at the relative position that is independent of on the anode handling tool (13) the definite reference point P on the earnest body really, be identified for substituting the anode (position of 20 ").Described measurement is carried out in loading and unloading anodic process, and preferably, in the operating process of anode change, regularly carve really and carry out, such as when grasping inefficacy anode (20 '), with the inefficacy anode, leave in when typically being on the loading and unloading collet really allocation (40 '), from typically being loading and unloading collet allocation (when 40 ") are picked up and substituted anode really.The present invention also has such advantage, and promptly it does not need additional loading and unloading action, and this has just been avoided electrolyzer to be in the prolongation of open mode time especially.
For acquisition point P 0The gratifying tolerance range of position, while significant notation reference point P, reference point P typically is located in the relative position measurement, and the surface-area that is had is with respect to point of fixity P 0And on the very little element of the spacing between each reference point P.For the ease of measuring, reference point P is preferably located on the reflecting surface and (is preferably the metallic surface).
Preferably, point of fixity P is positioned on the grip device (13a), or is positioned on the element of the handling tool that is fixed on grip device.This makes it possible to determine more accurately anode position.In fact, because in the anode cargo handling process, grip device (13a) moves with respect to other members (13b) of anode handling tool (13) and with respect to multifunction crane (4), this arrangement just avoided relating to relative position and relate to grip device (13a) and other members (13b) of anode handling tool (13) or multifunction crane (4) between the uncertainty of measurement in any gap.
(method of 20 ") typically comprises: point of fixity P according to be used to lose efficacy anode (20 ') and alternative anode of the present invention 0With respect at least one relative position measurement of the reference point that is connected to electrolyzer (2), and point of fixity P 0At least one relative position measurement with respect to the reference point that is independent of electrolyzer (2).Be connected to electrolyzer and be used for determining that the reference point of anode in the position of electrolyzer typically is arranged in anode superstructure (23) (Fig. 5 and 8 some P AAnd P F); Being independent of electrolyzer is used for measuring the anodic reference point and typically is positioned at anode and transmits loading and unloading collet (40) (Fig. 6 and 7 some P BAnd P C).
In a preferred embodiment of the invention, the measurement of relative position comprises:
Point of fixity P 0With respect to being positioned at the middle reference point P of first on the electrolyzer (2) AFirst the measuring of relative position, this is corresponding to the starting position of inefficacy anode (20 ').Preferably, when grip device (13a) is in the position of the metallic rod (22 ') that grasps anode (20 ') of losing efficacy in the electrolyzer, carry out this measurement;
Point of fixity P 0With respect to the second middle reference point P that is independent of electrolyzer (2) BSecond the measuring of relative position, corresponding to the length of the inefficacy anode of determining (20 ').Preferably, when grip device (13a) is in the position of the metallic rod (22 ') that grasps inefficacy anode (20 '), and this anode is placed on first when determining that Reference (40 ') is gone up, and carries out this measurement;
Point of fixity P 0With respect to the 3rd middle reference point P that is independent of electrolyzer (2) CThe 3rd the measuring of relative position, corresponding to the alternative anode (length of 20 ").Preferably, when grip device (13a) is in the position of the metallic rod that grasp to substitute anode (20 ") (22 "), and this anode is placed on second and determines that Reference (when 40 ") are gone up, carries out this measurement;
Preferably, the alternative anode in adjusting electrolyzer (in the process of the position of 20 "), substitutes the anodic metallic rod (position of 22 "), and this anode carries out point of fixity P when being placed in the electrolyzer when grip device (13a) is in to grasp 0The measurement of final relative position.
In the embodiment of the present invention shown in Fig. 5 to 8, adopted following program more accurately:
At the inefficacy anode of take out determining (20 ') before, the grip device (13a) of anode handling tool (13) is put into the first reference position A with respect to inefficacy anodic metallic rod (22 '), and measure the point of fixity P of this instrument 0With respect to being positioned on the electrolyzer (2), being preferably located in first on the anode superstructure (23) and determining middle reference point P AFirst relative position (Fig. 5).
After taking out inefficacy anode (20 ') and being put into it on the Reference (40 ') that preferably includes definite reference surface, the grip device (13a) of anode handling tool (13) is placed on the second reference position B with respect to inefficacy anode (20 ') metallic rod (22 '), and measures the point of fixity P of this instrument 0Determine middle reference point P with respect to second BSecond relative position, this second determine in the middle of reference point P BBe positioned at respect to Reference (40 ') (Fig. 6) on the allocation really.
Be placed on after the Reference that preferably includes definite reference surface (40 ") goes up will substituting anode (20 "), the grip device (13a) of anode handling tool (13) is placed on the 3rd reference position C with respect to the metallic rod that substitutes anode (20 ") (22 "), and measures the point of fixity P of this instrument 0Determine middle reference point P with respect to the 3rd CThird phase to the position, the 3rd determine in the middle of reference point P CBe positioned at that (40 ") are (Fig. 7) on the allocation really with respect to Reference.
Therefore, in this embodiment of the present invention, described definite middle reference position group comprises:
Taking out inefficacy anode (20 ') before, with respect to the first reference position A of its metallic rod (22 ') from electrolyzer (2).This position corresponding is in the starting position of the inefficacy anode of determining (20 ');
After taking out inefficacy anode (20 ') from electrolyzer (2) and being put on the Reference (40 '), with respect to the second reference position B of its metallic rod (22 ').This position is used for measuring inefficacy anode (20 ");
Be put into after Reference (40 ") goes up will substituting anode (20 "), with respect to its metallic rod (the 3rd reference position C of 22 ").This position is used for measuring alternative anode (20 ").
Preferably, the crawl position of the metallic rod (22 ') that described first and second reference positions are inefficacy anode (20 '), and described the 3rd reference position is the crawl position of the metallic rod that substitutes anode (20 ") (22 ").Preferably, the grip device (13a) that uses anode handling tool (13) grasp described metallic rod (22 ', 22 ") are carried out the measurement of relative position afterwards.
Preferably, described final reference position is the crawl position of the metallic rod that substitutes anode (20 ") (22 ").
The middle reference point P relevant with the first reference position A ABe preferably located on the electrolyzer (2), and more preferably be positioned on the anode superstructure (23).In order to simplify to substituting anode (determining of 20 ") final position, the final reference point P that determines FPreferably with the middle reference point P that is relevant to the first reference position A AIdentical.
The middle reference point P relevant with the second reference position B BTypically be positioned on first Reference (40 '), first Reference (40 ') is positioned at the electrolyzer outside.This Reference (40 ') typically is the part that anode transmits loading and unloading collet or anode transmission loading and unloading collet.
The middle reference point P relevant with the 3rd reference position C C(on 40 "), (40 ") are positioned at the electrolyzer outside to second Reference typically to be positioned at second Reference.(40 ") typically are the part that anode transmits loading and unloading collet or anode transmission loading and unloading collet to second Reference that can be identical with first Reference.
Preferably, the described second and the 3rd middle reference point (P BAnd P C) be in same level substantially, to avoid needing to consider level difference possible between 2 o'clock.
Preferably, described reference surface is in same level; If level disparity is known, they can be in different levels.
The gained result that use is used for the described relative position measurement of described first, second and the 3rd position (A, B, C) determines the point of fixity P on the anode handling tool (13) 0With respect to being preferably the described first reference point P ADefinite final reference point P FRearmost position (F), this final reference point substitutes anode when being arranged in described last reference position (F) and going up corresponding to the grip device (13a) when handling tool (13) (20 ") are in the position of electrolyzer (2); and (20 ") are put into the position that is at first occupied by inefficacy anode (20 '), and the point of fixity P by delivery anodic instrument will to be positioned at the alternative anode of this position 0With respect to last reference point P FAt least one position measurement (Fig. 8) is adjusted and is substituted the anodic position.
Described last reference position F is preferably alternative anode, and (crawl position of 20 ") is so that adjust its position in electrolyzer.
With respect to metallic rod (22 ', the reference position of 22 ") is preferably identical, avoids considering the gap of these positions in determining final position (F) process with this.
(at first 20 ") will put into the process of the position that is occupied by the inefficacy anode, use the result who is used for relative position A, B, C who is obtained, and come as calculated to determine that (20 ") are the final relative position of allocation really corresponding to alternative anode substituting anode.(20 "), (21a ") is positioned at lower surface (21a ') of the inefficacy anode (20 ') that its is ready to change, and (20 ") are with respect to reference point P to adjust alternative anode thereby make its lower surface in order to place alternative anode FFinal position F, thereby so that point of fixity P 0With final reference point P FBetween vertical distance satisfy and to concern E F=E A-E B+ E C+ Δ, wherein E A, E BAnd E CBe respectively point of fixity P 0With position A, B and the corresponding reference point (P in C place A, P BAnd P C) between vertical apart from E, wherein Δ is a modifying term, is used for considering that the pond substitutes anodic operation start (operating start up).
As shown in Figure 4, the reference point P that act as the identification marking that is used for determining anode handling tool position needn't be positioned at point of fixity P 0Under, in other words, reference point P can be from point of fixity P 0Depart from vertical line V.Position A, B, C and F be then corresponding to the position vector on three dimensions, as shown in Figure 4, this position vector can direction of passage (θ, ) and reference point P and some P 0Between distance D provide.Direction (θ, ), for example can be by (typically, passing point of fixity P with respect to the vertical axes V that determines 0) angle θ and provide with respect to the angle  of the transverse axis H that determines.Advantageously, described relative position is by point of fixity P 0And the distance D between the reference point and reference point are with respect to point of fixity P 0Spatial orientation S provide.
The applicant finds, selects reference point to make two angle , and at least one among the θ is basic identical for all reference point, and such selection is sufficient.Especially, (20 "), the angle  of reference point is normally identical, and angle θ is different with distance D for inefficacy anode (20 ') and alternative anode.On the other hand, typically be positioned at reference point P on the equivalent site of Reference (40) BAnd P CAngle  be not used in definite final relative position, in other words, have only that (angle θ that 20 ") are measured and distance D are only and must consider for inefficacy anode (20 ') and alternative anode.Under these conditions, some P 0With respect to reference point P FFinal relative position, (20 ") are allocation really, will be by relational expression  corresponding to alternative anode F= AAnd D FCos θ F=D ACos θ A-D BCos θ B+ D CCos θ C+ Δ provides, and wherein Δ is a modifying term, is used for considering the alternative anodic operation start in pond.
Of the present invention these are simplified variant and have been limited number of coordinates to be measured, and have avoided when determining to substitute anode position by the uncertainty of a plurality of coordinates being measured initiation.
Preferably, basic identical for two angle  of all reference point and θ, this is limited to position measurement only to point of fixity P 0And the measurement of the distance D between the reference point.So, in a preferred embodiment of the invention, select reference position (typically being A, B, C and F) and corresponding reference point, make that described spatial orientation S is basic identical for all relative position measurements.In this embodiment, measure point of fixity P 0With middle reference point (P corresponding to measuring position (A, B and C) in the middle of each A, P BAnd P C) between distance (D A, D BAnd D C), from measured distance (D A, D BAnd D C) determine described final relative position, and by means of at least one distance D corresponding to final relative position FMeasurement adjust the alternative anode (position of 20 ").
Preferably, use same anode handling tool (13) to load and unload inefficacy anode (20 ') and alternative anode (20 "), and carry out described relative position measurement.This variant impels the single point of fixity P of use 0, so avoided calibration to measuring apparatus, the calibration of this measuring apparatus and different instruments, and use the difference of different instrument inherent range observation relevant.In this case, (20 ") are preceding, remove inefficacy anode (20 ') pick up alternative anode with grip device (13a).
Consider the absolute mark P that is positioned on the anode handling tool 0, the advantage that the method according to this invention has is that it can correct the change of the antianode position that is caused by some unscheduled events.For example, if anode superstructure in the anode change operating process (23) has been moved (this typically occurs in and surveys after the anode incident), when the method according to this invention can be worked as reference point and is positioned on the anode superstructure, (20 ") were placed on respect on the correct height of other anodic will to change anode.Similarly, if anode has unexpectedly moved when fully not clamping anode rod (22) (this typically occurs in junctor (24)) with respect to other anodes, the method according to this invention can reappose anode with respect on the height of the correct position of other anodic when reference point is positioned on the anode superstructure.
Method according to anode change of the present invention can realize that this multi-functional unit (6) is equipped with device (13c) by means of multi-functional unit (6), is used for measuring the point of fixity P that is positioned on the anode handling tool (13) 0With respect to be positioned at be independent of anode handling tool (13) really at least one on the earnest body determine the position of reference point P.
Preferably, measuring apparatus (13c) comprises the remote measurement stadimeter that is used to carry out described measurement.This remote measurement stadimeter typically is selected from remote measurement stadimeter optical, acoustics or wireless.Advantageously, this remote measurement stadimeter is the laser telemetry stadimeter.Typically, by measuring sound wave or ultrasonic wave (if the remote measurement stadimeter is an acoustics), or hertzian wave (if the remote measurement stadimeter is an optical or wireless) is determined the distance between remote measurement stadimeter and the reference point P along the time that the roundtrip between remote measurement stadimeter and the reference point is propagated.Described ripple typically is bundle shape, and this with dashed lines in Fig. 4 to 8 is schematically illustrated.
For fear of the tolerance range of intermediary gap affects position measurement, measuring apparatus (13c) preferably is fixed on the grip device (13a), perhaps is fixed on the element that is fixed to grip device.
Typically, measuring apparatus (13c) comprises sound beam or electromagnetic beam projector, and sound wave or electromagnetic wave detector.Typically, described hertzian wave is a visible light, infrared light or radiowave.Advantageously, projector is a laser apparatus.The placement typically adjacent to each other of projector and/or detector, and point of fixity P 0Be positioned near them, this has simplified P 0The definite of position with respect to reference point P (particularly avoided needing to consider at projector, detector and point of fixity P 0Between distance).
So, according to the present invention, by means of projector to definite reference point P emission sound beam or electromagnetic beam (50), by determine the relative position of this reference point with respect to the relative position of projector by reference point reflected sound wave or hertzian wave and detector by means of detector measurement.
As mentioned above, point of fixity P 0Typically (θ is ) with point of fixity P by direction with respect to the position of determining reference point P 0And the distance D between the reference point P provides.Direction (θ, measure to determine by orientation that ) can the direction of passage detector.This distance D is typically by measuring sound wave or the hertzian wave travel-time between emission and detection, with the relative position of detector with respect to projector, differential seat angle between the particularly distance between projector and the detector, and beam transmission direction and the wave beam detection direction is determined.In order to improve the tolerance range of measurement, projector and detector preferably are fixedly attached to each other or are fixed on the common rigid support.Projector and/or detector typically are fixed on grip device (13a) and go up or be fixed on the element that is fixed to grip device (13a).Advantageously, projector and detector are placed side by side, and in other words, the distance at interval is very little with respect to distance D between them.
For between the member that compensates anode handling tool (13) and anode grip device (13a) and anode rod (22,22 ') between any gap, advantageously: always under tensioning state, carry out the measurement of relative position, in other words, after the motion parts of tightener (unclamping with anode rod remain on the anode superstructure (23) junctor (24) before), perhaps under compressed state, carry out the measurement of relative position.In order to consider described gap, advantageously, anode handling tool (13) should install and measure tool interior tensile device, such as axial force measuring machine, determining that movement of tool partly is in the moment of tensioning or compressed state, and definite mechanical clearance all is adjusted at the unidirectional moment.
The measurement of middle relative position (A, B and C) can be carried out under participating in being with or without the operator.Measurement can manually be carried out, and in other words, the operator writes down the data of being obtained in each independent process of this method, or they can be full-automatic or automanual, and in other words, computerized equipment carries out all or part of measurement automatically.Can also measure the value of gained and carry out determining the determining of final relative position of position by means of being used for mid-way (A, B and C) by the operator corresponding to substituting anodic.For simple light work person's task with avoid miscount, advantageously, the measurement of described position (A, B, C, F) is undertaken by computer installation whole or in part.Advantageously, measuring apparatus (13c) comprises and is used to write down the measurement of being done and is used for determining corresponding to the alternative anode (system of the described position F of 20 ").

Claims (29)

1. one kind is used for changing fusion electrolysis aluminium metallurgy pond (2) anodic method, this pond comprises anode superstructure (23) and a plurality of anode (20), each anode all is equipped with metallic rod (22), wherein, this method uses at least one to comprise the anode handling tool (13) of locating device (13b) and grip device (13a), with at least one alternative anode (20 ") replace at least one inefficacy anode (20 ') of determining; and should substitute anode (20 ") are put into electrolyzer (2) allocation really, and described method is characterised in that:
For at least one anode handling tool (13), selection one is fixedly attached to the point of fixity P of described instrument 0
Select one group of middle reference position of determining of anode handling tool (13), and each position of reference position, described centre group is independent of anode handling tool (13) the middle reference point on the earnest body is relevant really with being positioned at;
Select and alternative anode (the final reference position of the anode handling tool (13) of described definite position corresponding of 20 "), and this reference position and being positioned at is independent of anode handling tool (13) the final reference point P of determining on the earnest body really FRelevant;
With anode handling tool (13) be placed on described in the middle of on each position in the reference position, and for each position, the point of fixity P of survey instrument 0Relative position with respect to reference point in the middle of corresponding;
By the measurement of described relative position, determine the point of fixity P of handling tool (13) 0With respect to the final reference point P that determines FFinal relative position, this final reference point P FCorresponding to alternative anode (the described definite position of 20 ") in electrolyzer (2);
Point of fixity P by means of handling tool (13) 0With respect to final reference point P FAt least one relative position measurement adjust alternative anode (position of 20 "), thus with described tool positioned on described final relative position.
2. according to the method for claim 1, it is characterized in that final reference point P FBe positioned on the electrolyzer (2).
According to claim 2 be used to change the anodic method, it is characterized in that final reference point P FBe positioned on the anode superstructure (23) of electrolyzer (2).
According in the claim 1 to 3 each be used to change the anodic method, it is characterized in that described final relative position is the crawl position of the metallic rod that substitutes anode (20 ") (22 ").
According in the claim 1 to 4 each be used to change the anodic method, it is characterized in that described definite group middle reference position comprises:
Taking out inefficacy anode (20 ') before from electrolyzer (2), with respect to the first reference position A of the metallic rod (22 ') of inefficacy anode (20 ');
Taking out inefficacy anode (20 ') from electrolyzer (2) and putting it to after Reference (40 ') goes up, with respect to the second reference position B of the metallic rod (22 ') of inefficacy anode (20 ');
Be put into after Reference (40 ") goes up will substituting anode (20 "), with respect to the 3rd reference position C of the metallic rod that substitutes anode (20 ") (22 ").
6. be used to change the anodic method according to claim 5, it is characterized in that, the metallic rod that described first and second reference positions are inefficacy anode (20 ') (crawl position of 22 "), and described the 3rd reference position is the crawl position of the metallic rod that substitutes anode (20 ") (22 ").
According to claim 5 and 6 each be used to change the anodic method, its feature exists, the middle reference point P relevant with the first reference position A ABe positioned on the electrolyzer (2).
According to claim 7 be used to change the anodic method, it is characterized in that, described in the middle of reference point P ABe positioned on the anode superstructure (23).
According to claim 7 or 8 be used to change the anodic method, it is characterized in that described definite final reference point P FWith the middle reference point P that is relevant to the first reference position A AIdentical.
According in the claim 5 to 9 each be used to change the anodic method, it is characterized in that the middle reference point P relevant with the second reference position B BBe positioned on first Reference (40 '), this first Reference (40 ') is positioned at the electrolyzer outside.
11. according to claim 10 be used to change the anodic method, it is characterized in that Reference (40 ') is that anode transmits the loading and unloading collet.
12. according in the claim 5 to 11 each be used to change the anodic method, it is characterized in that the middle reference point P relevant with the 3rd reference position C C(on 40 "), (40 ") are positioned at the electrolyzer outside to this second Reference to be positioned at second Reference.
13. according to claim 12 be used to change the anodic method, it is characterized in that (40 ") are that anode transmits the loading and unloading collet to described Reference.
14. according in the claim 1 to 13 each be used to change the anodic method, it is characterized in that, use identical handling tool (13) to load and unload inefficacy anode (20 ') and alternative anode (20 "), and carry out described relative position measurement.
15. according in the claim 1 to 14 any one be used to change the anodic method, it is characterized in that described relative position is by point of fixity P 0And the distance D between the reference point and reference point are with respect to point of fixity P 0Spatial orientation S provide.
16. according to claim 15 be used to change the anodic method, it is characterized in that, select reference position and corresponding reference point, make that described spatial orientation S is basic identical for all relative position measurements.
17. according in the claim 1 to 16 each be used to change the anodic method, it is characterized in that, find range with remote measurement and carry out described measurement.
18. according to claim 17 be used to change the anodic method, it is characterized in that described remote measurement range finding is selected from remote measurement range finding optical, acoustics or wireless.
19. according to claim 18 be used to change the anodic method, it is characterized in that described remote measurement range finding is the laser telemetry range finding.
20. according in the claim 1 to 19 each be used to change the anodic method, it is characterized in that described point of fixity P 0Be positioned on the grip device (13a), perhaps be positioned on handling tool (13) element that is fixed on the grip device (13a).
21. be used for carrying out the multi-functional unit (6) of anode change operation in a series of fusion electrolysis aluminium metallurgys ponds (2), this pond comprises a plurality of anodes (20), each anode all is equipped with metallic rod (22), described multi-functional unit comprises that at least one contains the anode handling tool (13) of locating device (13b) and grip device (13a), this anode handling tool is characterised in that, it comprises device (13c), is used for measuring the point of fixity P that is positioned on the anode handling tool (13) 0Be positioned at respect at least one and be independent of anode handling tool (13) position of the definite reference point P on the earnest body really.
22. the multi-functional unit (6) according to claim 21 is characterized in that, described point of fixity P 0Be positioned on the grip device (13a), perhaps be positioned on the element of the handling tool (13) that is fixed to grip device (13a).
23. the multi-functional unit (6) according to claim 21 or 22 is characterized in that described measuring apparatus (13c) comprises the remote measurement stadimeter that carries out described measurement.
24. the multi-functional unit (6) according to claim 23 is characterized in that, described remote measurement stadimeter is selected from optical, acoustics or radiotelemetry stadimeter.
25. the multi-functional unit (6) according to claim 24 is characterized in that described remote measurement stadimeter is the laser telemetry stadimeter.
26., it is characterized in that described measuring apparatus (13c) is fixed on the grip device (13a), perhaps is fixed on the element that is fixed to grip device according to each multi-functional unit (6) in the claim 21 to 25.
27., it is characterized in that described anode handling tool (13) is equipped with the device of survey instrument inner tensions, as axial force measuring machine according to each multi-functional unit (6) in the claim 21 to 26.
28., it is characterized in that described measuring apparatus (13c) comprises the measurement done in order to record and in order to determine corresponding to the alternative anode (system of the described position A ' of 20 ") according to each multi-functional unit (6) in the claim 21 to 27.
29. be used for the multifunction crane (4) of fusion electrolysis aluminium metallurgy factory, it comprises that walking crane (5) and at least one are according to each multi-functional unit (6) in the claim 21 to 28.
CNA2005800351952A 2004-10-14 2005-10-12 Method for changing anode in an electrolytic aluminium production cell including adjusting the position of the anode and servicing machine therefor Pending CN101040063A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0410834A FR2876713B1 (en) 2004-10-14 2004-10-14 METHOD FOR CHANGING ANODE IN AN ELECTROLYTIC ALUMINUM PRODUCTION CELL INCLUDING ANODE POSITION ADJUSTMENT AND SERVICE MACHINE FOR CARRYING OUT THE METHOD
FR0410834 2004-10-14

Publications (1)

Publication Number Publication Date
CN101040063A true CN101040063A (en) 2007-09-19

Family

ID=34953512

Family Applications (1)

Application Number Title Priority Date Filing Date
CNA2005800351952A Pending CN101040063A (en) 2004-10-14 2005-10-12 Method for changing anode in an electrolytic aluminium production cell including adjusting the position of the anode and servicing machine therefor

Country Status (8)

Country Link
US (1) US20080251392A1 (en)
EP (1) EP1838901A2 (en)
CN (1) CN101040063A (en)
AR (1) AR054694A1 (en)
CA (1) CA2583471C (en)
FR (1) FR2876713B1 (en)
RU (1) RU2378417C2 (en)
WO (1) WO2006040475A2 (en)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102747385A (en) * 2011-04-18 2012-10-24 湖南晟通科技集团有限公司 Anode changing method of electrolyzer
CN101823666B (en) * 2009-03-04 2014-03-26 贵阳铝镁设计研究院有限公司 Method for resetting tool of aluminium electrolysis multifunctional overhead traveling crane and device thereof
CN103827356A (en) * 2011-09-28 2014-05-28 E.C.L.公司 Compact service module and use thereof in a plant for producing aluminum by electrolysis
CN105177625A (en) * 2015-09-02 2015-12-23 广西南宁凡成电子科技有限公司 Method for replacing anode of electrolytic bath
CN105220178A (en) * 2014-06-04 2016-01-06 贵阳铝镁设计研究院有限公司 A kind of aluminum electrolyzing cell used change poles covering car
CN105256333A (en) * 2015-11-23 2016-01-20 株洲天桥起重机股份有限公司 Anode replacement system for aluminum electrolysis production
CN105274572A (en) * 2015-11-23 2016-01-27 株洲天桥起重机股份有限公司 Anode replacement method for aluminum electrolysis production
CN105960482A (en) * 2014-01-27 2016-09-21 力拓艾尔坎国际有限公司 Device for storing a load above an electrolytic cell
CN110586533A (en) * 2019-10-11 2019-12-20 山西双力成传送设备有限公司 Device for cleaning carbon slag on small end surface of aluminum anode baked carbon block
CN113557324A (en) * 2019-03-14 2021-10-26 力拓艾尔坎国际有限公司 Intervention tool for the operation of an electrolytic cell

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2842215B1 (en) * 2002-07-09 2004-08-13 Pechiney Aluminium METHOD AND SYSTEM FOR COOLING AN ELECTROLYSIS TANK FOR THE PRODUCTION OF ALUMINUM
CN105755506B (en) * 2016-05-13 2018-10-16 邱岳 Aluminium cell replaces anode system and its replacing options automatically
CN105862081B (en) * 2016-05-27 2018-10-16 邱岳 A kind of automatic crust breaking of pole changing of aluminum electrolytic cell process anode cracks system and method
CN105839144A (en) * 2016-05-27 2016-08-10 邱岳 Anode automatic height measurement positioning device and method in pole changing process of aluminum electrolysis cell
CN111455412A (en) * 2020-05-08 2020-07-28 宁波创润新材料有限公司 Molten salt electrolysis device containing anode frame and anode solid material adding method thereof
GB2606991A (en) * 2021-03-31 2022-11-30 Alumatlq As Electrolytic cell lid handling system and method of use
EP4293141A1 (en) 2022-06-13 2023-12-20 Dubai Aluminium PJSC Anode servicing assembly for an aluminium electrolysis plant, and methods for operating the same

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3815116A (en) * 1972-04-17 1974-06-04 Tedd Shipyards Corp Apparatus and means for monitoring moments in material handling equipment
DE2819351A1 (en) * 1978-04-03 1979-10-04 Alusuisse METHOD FOR MEASURING ELECTRODES TO BE REPLACED, ARRANGEMENT FOR IMPLEMENTING THE METHOD AND DETECTOR FOR REGISTERING THE REACHER OF A PRESET POSITION
US4540474A (en) * 1984-06-04 1985-09-10 Aluminum Company Of America Light level electrode setting gauge and method of use
IT1263968B (en) * 1993-02-25 1996-09-05 Gianfranco Zannini AUTOMATED EQUIPMENT FOR THE CHANGE OF THE ELECTROLYTIC CELL ANODES FOR THE PRODUCTION OF ALUMINUM
US5757419A (en) * 1996-12-02 1998-05-26 Qureshi; Iqbal Inspection method and apparatus for tanks and the like
JP4459463B2 (en) * 2001-02-19 2010-04-28 株式会社ハーモニック・ドライブ・システムズ Actuator positioning error correction method
US7001497B2 (en) * 2003-04-25 2006-02-21 Alcoa,Inc. Process and apparatus for positioning replacement anodes in electrolytic cells
FR2868086B1 (en) * 2004-03-25 2006-05-26 Ecl Soc Par Actions Simplifiee COMPACT SERVICE MODULE FOR ALUMINUM PRODUCTION FACILITIES BY ELECTROLYSIS
FR2874934B1 (en) * 2004-09-08 2007-09-07 Ecl Soc Par Actions Simplifiee METHOD FOR CHANGING ANODE IN AN ELECTROLYTIC ALUMINUM PRODUCTION CELL INCLUDING ANODE POSITION ADJUSTMENT AND DEVICE FOR IMPLEMENTING THE SAME

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101823666B (en) * 2009-03-04 2014-03-26 贵阳铝镁设计研究院有限公司 Method for resetting tool of aluminium electrolysis multifunctional overhead traveling crane and device thereof
CN102747385A (en) * 2011-04-18 2012-10-24 湖南晟通科技集团有限公司 Anode changing method of electrolyzer
CN103827356B (en) * 2011-09-28 2016-07-13 E.C.L.公司 For by compact service module in the factory of electrolytic production of aluminum and application thereof
CN103827356A (en) * 2011-09-28 2014-05-28 E.C.L.公司 Compact service module and use thereof in a plant for producing aluminum by electrolysis
CN105960482B (en) * 2014-01-27 2019-03-19 力拓艾尔坎国际有限公司 Equipment for storing load object above electrolytic cell
CN105960482A (en) * 2014-01-27 2016-09-21 力拓艾尔坎国际有限公司 Device for storing a load above an electrolytic cell
CN105220178A (en) * 2014-06-04 2016-01-06 贵阳铝镁设计研究院有限公司 A kind of aluminum electrolyzing cell used change poles covering car
CN105177625B (en) * 2015-09-02 2017-07-07 广西南宁凡成电子科技有限公司 A kind of method that electrolytic cell changes anode
CN105177625A (en) * 2015-09-02 2015-12-23 广西南宁凡成电子科技有限公司 Method for replacing anode of electrolytic bath
CN105256333A (en) * 2015-11-23 2016-01-20 株洲天桥起重机股份有限公司 Anode replacement system for aluminum electrolysis production
CN105274572A (en) * 2015-11-23 2016-01-27 株洲天桥起重机股份有限公司 Anode replacement method for aluminum electrolysis production
CN105256333B (en) * 2015-11-23 2017-09-22 株洲天桥起重机股份有限公司 A kind of anode change system for aluminum electrolysis
CN105274572B (en) * 2015-11-23 2017-09-22 株洲天桥起重机股份有限公司 A kind of method of anode change for aluminum electrolysis
CN105256333B9 (en) * 2015-11-23 2022-07-26 株洲天桥起重机股份有限公司 Anode replacing system for aluminum electrolysis production
CN113557324A (en) * 2019-03-14 2021-10-26 力拓艾尔坎国际有限公司 Intervention tool for the operation of an electrolytic cell
CN110586533A (en) * 2019-10-11 2019-12-20 山西双力成传送设备有限公司 Device for cleaning carbon slag on small end surface of aluminum anode baked carbon block

Also Published As

Publication number Publication date
WO2006040475A3 (en) 2007-03-08
AR054694A1 (en) 2007-07-11
EP1838901A2 (en) 2007-10-03
US20080251392A1 (en) 2008-10-16
RU2378417C2 (en) 2010-01-10
FR2876713A1 (en) 2006-04-21
CA2583471C (en) 2013-04-23
CA2583471A1 (en) 2006-04-20
WO2006040475A2 (en) 2006-04-20
FR2876713B1 (en) 2007-07-20
RU2007117506A (en) 2008-11-20

Similar Documents

Publication Publication Date Title
CN101040063A (en) Method for changing anode in an electrolytic aluminium production cell including adjusting the position of the anode and servicing machine therefor
CN101052749A (en) Method of changing an anode of a cell for the production of aluminium by means of electrolysis, including an adjustment of the position of the anode, and device for performing same
US7422675B2 (en) Process for changing anodes in an electrolytic aluminum production cell including adjustment of the position of the anode and device for implementing the process
CN1063515C (en) Borehole boring method and machine
CA2523656C (en) Process and apparatus for positioning replacement anodes in electrolytic cells
US7731824B2 (en) Measuring duct offgas temperatures to improve electrolytic cell energy efficiency
CN102177280A (en) Service machine used for intervention on electrolysis cells for producing aluminium by igneous electrolysis
EP3191623B1 (en) System of protecting electrolysis cell sidewalls
CN101103142A (en) Load and unload device for electrolysis aluminium battery cover
CN1898414A (en) A method and equipment for positioning when replacing anodes in an electrolysis cell
RU2375502C2 (en) Method of anode changing in electrolytic cell for manufacturing of aluminium by electrolysis, including regulation of anode position and device for its implementation
CN207362344U (en) A kind of electrolytic cell with anode covering and heat insulating device
CN105112943B (en) A kind of pole changing of aluminum electrolytic cell crust breaker and its application
CN1977069A (en) Scraper for a drilling taper of an electrolytic cell solution crust for use in aluminium production
NZ535111A (en) Aluminium electrowinning cell design with movable insulating cover sections
CN106460209A (en) System for carrying out operations linked to use of cells of facility for producing aluminium by means of electrolysis
US7255783B2 (en) Use of infrared imaging to reduce energy consumption and fluoride consumption
CN1742117A (en) Serving machine for electrolysis cells for producing aluminium
RU2576514C2 (en) Method to measure surface patterns in operated aluminium electrolysis cells
EP4293141A1 (en) Anode servicing assembly for an aluminium electrolysis plant, and methods for operating the same
CN107513728A (en) A kind of electrolytic cell with anode covering and heat insulating device
CN105220178A (en) A kind of aluminum electrolyzing cell used change poles covering car
CN115074779A (en) Pole changing operation system and method of aluminum electrolysis multifunctional crown block driving unit
SE467359B (en) Process and device for point-feeding aluminium oxide, and an anode casing for Soederberg anodes in electrolysis cells for producing aluminium
Jie et al. Simulation study on the heating-up rate for coke bed preheating of aluminum reduction cell

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
AD01 Patent right deemed abandoned

Effective date of abandoning: 20070919

C20 Patent right or utility model deemed to be abandoned or is abandoned