CN101573475A - Method for the heating of anode blocks, and an arrangement for the heating of anode blocks - Google Patents
Method for the heating of anode blocks, and an arrangement for the heating of anode blocks Download PDFInfo
- Publication number
- CN101573475A CN101573475A CNA2007800463285A CN200780046328A CN101573475A CN 101573475 A CN101573475 A CN 101573475A CN A2007800463285 A CNA2007800463285 A CN A2007800463285A CN 200780046328 A CN200780046328 A CN 200780046328A CN 101573475 A CN101573475 A CN 101573475A
- Authority
- CN
- China
- Prior art keywords
- anode block
- cup
- hole
- end surface
- open end
- 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.)
- Granted
Links
- 238000000034 method Methods 0.000 title claims abstract description 12
- 238000010438 heat treatment Methods 0.000 title abstract description 4
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 9
- 238000004519 manufacturing process Methods 0.000 claims abstract description 8
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 6
- 239000004411 aluminium Substances 0.000 claims abstract description 5
- 229910004298 SiO 2 Inorganic materials 0.000 claims description 3
- 239000012774 insulation material Substances 0.000 claims description 3
- 230000005855 radiation Effects 0.000 claims description 3
- 238000001035 drying Methods 0.000 description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 7
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 238000007664 blowing Methods 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 229910000953 kanthal Inorganic materials 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 238000009418 renovation Methods 0.000 description 1
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
- C25C3/08—Cell construction, e.g. bottoms, walls, cathodes
- C25C3/12—Anodes
- C25C3/125—Anodes based on carbon
-
- 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
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B3/00—Ohmic-resistance heating
- H05B3/62—Heating elements specially adapted for furnaces
- H05B3/64—Heating elements specially adapted for furnaces using ribbon, rod, or wire heater
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Resistance Heating (AREA)
- Electrolytic Production Of Metals (AREA)
- Primary Cells (AREA)
Abstract
A method for the heating of anode blocks, which anode blocks (2) are used during the production of aluminium and comprise contact holes (3) into which it is arranged that electrical contacts are to be attached. The invention is characterised in that the holes (3) are caused to be heated by means of radiative heat from electri- cal resistive elements (4, 5, 6) arranged to be used at high temperatures, in that the wire of the elements (4, 5, 6) is in the form of shanks with two or more legs, in that each one of the elements (4, 5, 6) is caused to be arranged in a cup (7, 8, 9) with an open end surface, in that one cup (7, 8, 9) for each hole (3) in the anode block (2) is caused to lie in front of the hole(3) in question. The invention relates also to an arrangement.
Description
Technical field
The present invention relates to a kind of method that is used to heat anode block, and relate to a kind of device (arrangement) that is used to heat anode block.
Background technology
During the production process of primary aluminum, use the object that is known as " anode block ".This piece is made up of granular graphite.In these pieces, there is the hole, so that by the molded electrical contact (electrical contact) that comes attached iron to constitute, it is called as " yoke (yoke) ".The variable size of piece, and the quantity of the contact hole of attached therein contact is also variable.Usually there are three to six holes.Piece can be of different sizes: for example, this size can be 1300 * 500 * 500 millimeters.
Anode block is changed by the interval with rule.Then, anode block renovation and storage are got up, up to it is reused.
Because it is outdoor that piece often is stored in, so, in the hole of piece, may assemble the water that has to a certain degree as the result of precipitation.In addition, this piece also can be exposed in the wet air.Because the material of piece is a porous, so water is pumped in the piece or is absorbed in the piece.
Before can be, water must be removed, and make the piece drying by molded firm attachment of carrying out to the contact.This carries out as follows current, that is, at first, by blowing forced air liquid water is removed, and heats this piece by means of gas burner then, so that make its drying.The problem of this program is that the gas in the burner includes a certain amount of water vapour, and wherein, described water vapour was condensate on the piece before the temperature of piece is raise fully at first.This result who causes is to need dry described of long time.
Summary of the invention
A kind of demand is that reduced time of drying significantly.The invention solves this problem.
Therefore, the present invention relates to a kind of method that is used to heat anode block, wherein, described anode block is used in the production of aluminium and comprises contact hole, in described contact hole, what arrange is the electrical contact that carries out annex, and the invention is characterized in by from the radiations heat energy that is arranged to the resistance element that at high temperature uses described hole being heated; Be that the lead of described element is the form of handle (shank) with two or more legs; Be, in the described element each all be disposed in have in the cup of open end surface; And be that a feasible cup that is used for each hole of anode block is placed in the place ahead in described hole.
In addition, that the present invention relates to this type and have a device of the specified characteristics of principle of Patent right requirement 6.
Description of drawings
Hereinafter,, the present invention is described in more detail embodiments of the invention shown in reference to the accompanying drawings especially, wherein:
Fig. 1 show when anode block wherein is in side under the device, see according to device of the present invention,
Fig. 2 and Fig. 3 show the different perspective sketches of device according to the present invention and anode block.
Embodiment
Fig. 1 shows the device 1 that is used to heat anode block 2, and wherein, anode block is used in the production period of aluminium, and this anode block comprises contact hole 3, and in described contact hole 3, what arranged is the electrical contact that carries out annex.
According to the present invention, as shown in Figure 3, device 1 comprises resistance element 4,5,6, and it is arranged at high temperature and uses.Preferably, use the resistance element that is called " Kanthal Super " by the manufacturing of KANTHALAB company and the name that on market, sell of Sweden.This element can be heated to 1900 ℃ in operation.The lead of element 4-6 is formed the handle with two or more legs.Among the element 4-6 each is disposed in the cylindrical cup 7,8,9 with open end surface.Preferably, described cup is a cylindricality.Quantitatively equate with the cup 7-9 of resistance element 4-6 with the quantity in hole 3 in the anode block 2.It all is in the common retainer 10 that cup 7-9 is placed on all cups, and a feasible cup 7-9 who is used for each hole 3 of anode block 2 is placed in the front in described hole 3.
Because when heat-processed begins, there is not water to be added into, so, produced the prior art that a kind of ratio described and had more high efficiency heating means by use from this device of the radiations heat energy of high-temperature components.By using high-temperature components, can reach much higher energy in limited surface, and this helps to heat quickly and dry described anode block.
According to a preferred embodiment of the present invention, making described element is high-temperature components.
According to another preferred embodiment of the invention, make described cup by comprising Al
2O
3And/or SiO
2Fibrous insulation material constitute.
According to further preferred embodiment, make each resistance element can produce the power of about 10-20kW.
According to further preferred embodiment again, make the distance between described open end surface and the anode block surpass some millimeters, and should be less than some centimetres.
Present method demonstrates, and compares with the time of drying that prior art is required, and it can greatly reduce the time of drying that is used for anode block.For the above anode block that provides as the size of example, may be as little to about 4 minutes time of drying.
Therefore the invention solves the problem described in introduction.
In addition, verified following situation when test set promptly, by using suitable explicitly and blowing device previously known with heat treated, makes the described cup of blows air over and enters downwards in the hole of anode block, can further reduce time of drying.
The present invention never is limited to the method and apparatus that uses with the anode block with three holes.The present invention can be used for the design of all tool foraminous anode blocks.
Some embodiment has below been described.Yet, the present invention can with for a person skilled in the art significantly mode change, and therefore, owing to the present invention can change under the situation of the scope that does not break away from described Patent right requirement, so the present invention should be considered as being subject to the foregoing description.
Claims (10)
1. method that is used to heat anode block, wherein, anode block (2) is used in the production of aluminium and comprises contact hole (3), in described contact hole (3), what arrange is to carry out attached electrical contact, it is characterized in that, by described hole (3) being heated from the radiations heat energy that is arranged to the resistance element (4,5,6) that at high temperature uses; Be that the lead of described element (4,5,6) is the form with handle of two or more legs; Be, in the described element (4,5,6) each is disposed in the cup (7,8,9) with open end surface; Be that a feasible cup (7,8,9) that is used for each hole (3) of described anode block (2) is positioned at the place ahead of described hole (3).
2. method according to claim 1 is characterized in that, making described element (4,5,6) is high-temperature components.
3. method according to claim 1 and 2 is characterized in that, makes described cup (7,8,9) by comprising Al
2O
3And/or SiO
2Fibrous insulation material constitute.
4. according to claim 1,2 or 3 described methods, it is characterized in that, make each resistance element (4,5,6) produce the power of about 10-20kW.
5. according to each described method in the aforementioned claim, it is characterized in that, make the distance between described open end surface and the described anode block (2) surpass some millimeters, and less than some centimetres.
6. device that is used to heat anode block, wherein, anode block (2) is used in the production of aluminium and comprises contact hole (3), in described contact hole (3), what arrange is to carry out attached electrical contact, it is characterized in that described device comprises and is arranged at high temperature the resistance element (4,5,6) that uses; Be that the lead of described element (4,5,6) is the form with handle of two or more legs; Be that each of described element (4,5,6) is disposed in the cup (7,8,9) with open end surface; Be, quantitatively equate with the quantity in hole (3) in the described anode block (2) with the described cup (7,8,9) of described resistance element (4,5,6); And be that it all is in the common retainer (10) that described cup (3) is placed in all cups, a feasible cup (7,8,9) that is used for each hole (3) of described anode block (2) is placed in the place ahead of described hole (3).
7. device according to claim 6 is characterized in that, described element (4,5,6) is high-temperature components.
8. according to claim 6 or 7 described devices, it is characterized in that described cup (7,8,9) is by comprising Al
2O
3And/or SiO
2The fibrous insulation material manufacturing.
9. according to claim 6,7 or 8 described devices, it is characterized in that, each resistance element (4,5,6) is arranged as the power that produces about 10-20kW.
10. according to each described device among the claim 6-9, it is characterized in that, make that the distance between described open end surface and described anode block (2) surpasses some millimeters, and less than some centimetres.
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SE0602707A SE531376C2 (en) | 2006-12-15 | 2006-12-15 | Method of heating anode blocks, as well as apparatus for heating anode blocks |
| SE06027072 | 2006-12-15 | ||
| SE0602707-2 | 2006-12-15 | ||
| PCT/SE2007/050904 WO2008073031A1 (en) | 2006-12-15 | 2007-11-27 | Method for the heating of anode blocks, and an arrangement for the heating of anode blocks. |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101573475A true CN101573475A (en) | 2009-11-04 |
| CN101573475B CN101573475B (en) | 2011-08-17 |
Family
ID=39511959
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2007800463285A Active CN101573475B (en) | 2006-12-15 | 2007-11-27 | Method for the heating of anode blocks, and an arrangement for the heating of anode blocks |
Country Status (6)
| Country | Link |
|---|---|
| EP (1) | EP2102387B1 (en) |
| CN (1) | CN101573475B (en) |
| AU (1) | AU2007332181B2 (en) |
| CA (1) | CA2672507C (en) |
| SE (1) | SE531376C2 (en) |
| WO (1) | WO2008073031A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110541175A (en) * | 2019-10-17 | 2019-12-06 | 陈雨 | Heating device for electrolytic aluminum anode production |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NO333400B1 (en) * | 2009-08-25 | 2013-05-27 | Norsk Hydro As | Process and plant for cleaning and drying of calcined electrodes |
| CN103103567B (en) * | 2012-09-28 | 2015-09-23 | 河南永登铝业有限公司阳城分公司 | Electrolytic aluminum equipment and anode block process furnace thereof |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SE395214B (en) * | 1975-09-09 | 1977-08-01 | Bulten Kanthal Ab | DEVICE FOR ELECTRICALLY HEATED RESISTANT STOVES |
| DE2844222C2 (en) * | 1978-10-11 | 1984-10-18 | Gewerkschaft Eisenhütte Westfalia, 4670 Lünen | Method and device for connecting anodes to their anode rods |
| US4394566A (en) * | 1979-11-27 | 1983-07-19 | Bulten-Kanthal Aktiebolag | Ladle preheater |
| EP0150680A3 (en) * | 1984-01-18 | 1985-08-28 | Schweizerische Aluminium AG | Process for attaching anode blocks to an anode hanging |
| AU7625594A (en) * | 1993-08-27 | 1995-03-21 | Asbjorn Moen | Procedure and device for electrical drying and preheating of cells for electrolysis |
| SE518582C2 (en) * | 2000-02-18 | 2002-10-29 | Kanthal Ab | Heating furnace in which heat is transmitted by radiation |
| JP2004139769A (en) * | 2002-10-16 | 2004-05-13 | Aruba Japan:Kk | Exoergic structure |
| CN2653407Y (en) * | 2003-10-16 | 2004-11-03 | 韦力 | Electric induction heating drier |
-
2006
- 2006-12-15 SE SE0602707A patent/SE531376C2/en unknown
-
2007
- 2007-11-27 CA CA2672507A patent/CA2672507C/en active Active
- 2007-11-27 WO PCT/SE2007/050904 patent/WO2008073031A1/en active Application Filing
- 2007-11-27 EP EP07852176.2A patent/EP2102387B1/en active Active
- 2007-11-27 AU AU2007332181A patent/AU2007332181B2/en active Active
- 2007-11-27 CN CN2007800463285A patent/CN101573475B/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110541175A (en) * | 2019-10-17 | 2019-12-06 | 陈雨 | Heating device for electrolytic aluminum anode production |
Also Published As
| Publication number | Publication date |
|---|---|
| CA2672507C (en) | 2015-02-24 |
| AU2007332181B2 (en) | 2010-05-20 |
| EP2102387B1 (en) | 2016-01-27 |
| AU2007332181A1 (en) | 2008-06-19 |
| SE531376C2 (en) | 2009-03-17 |
| WO2008073031A1 (en) | 2008-06-19 |
| SE0602707L (en) | 2008-06-16 |
| CN101573475B (en) | 2011-08-17 |
| EP2102387A1 (en) | 2009-09-23 |
| CA2672507A1 (en) | 2008-06-19 |
| EP2102387A4 (en) | 2010-09-29 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20240119 Address after: Halsta Hama, Sweden Patentee after: Cantel Ltd. Address before: Sandviken Patentee before: SANDVIK INTELLECTUAL PROPERTY AB |