AU2015282394B2 - Side Insulation Lining for an Electrolytic Cell - Google Patents
Side Insulation Lining for an Electrolytic Cell Download PDFInfo
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- AU2015282394B2 AU2015282394B2 AU2015282394A AU2015282394A AU2015282394B2 AU 2015282394 B2 AU2015282394 B2 AU 2015282394B2 AU 2015282394 A AU2015282394 A AU 2015282394A AU 2015282394 A AU2015282394 A AU 2015282394A AU 2015282394 B2 AU2015282394 B2 AU 2015282394B2
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- elements
- thermally insulating
- electrolytic cell
- wedging
- cell according
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- 238000009413 insulation Methods 0.000 title claims abstract description 32
- 239000000463 material Substances 0.000 claims abstract description 29
- 239000011819 refractory material Substances 0.000 claims abstract description 11
- 230000001681 protective effect Effects 0.000 claims description 23
- 238000005260 corrosion Methods 0.000 claims description 8
- 230000007797 corrosion Effects 0.000 claims description 8
- 230000006835 compression Effects 0.000 claims description 7
- 238000007906 compression Methods 0.000 claims description 7
- 239000003792 electrolyte Substances 0.000 claims description 6
- 239000000835 fiber Substances 0.000 claims description 6
- 239000003517 fume Substances 0.000 claims description 5
- 239000002657 fibrous material Substances 0.000 claims description 4
- 244000025254 Cannabis sativa Species 0.000 claims description 3
- 235000012766 Cannabis sativa ssp. sativa var. sativa Nutrition 0.000 claims description 3
- 235000012765 Cannabis sativa ssp. sativa var. spontanea Nutrition 0.000 claims description 3
- 229920000049 Carbon (fiber) Polymers 0.000 claims description 3
- 239000005909 Kieselgur Substances 0.000 claims description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 3
- 239000000378 calcium silicate Substances 0.000 claims description 3
- 229910052918 calcium silicate Inorganic materials 0.000 claims description 3
- OYACROKNLOSFPA-UHFFFAOYSA-N calcium;dioxido(oxo)silane Chemical compound [Ca+2].[O-][Si]([O-])=O OYACROKNLOSFPA-UHFFFAOYSA-N 0.000 claims description 3
- 235000009120 camo Nutrition 0.000 claims description 3
- 239000004917 carbon fiber Substances 0.000 claims description 3
- 235000005607 chanvre indien Nutrition 0.000 claims description 3
- SHFGJEQAOUMGJM-UHFFFAOYSA-N dialuminum dipotassium disodium dioxosilane iron(3+) oxocalcium oxomagnesium oxygen(2-) Chemical compound [O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[Na+].[Na+].[Al+3].[Al+3].[K+].[K+].[Fe+3].[Fe+3].O=[Mg].O=[Ca].O=[Si]=O SHFGJEQAOUMGJM-UHFFFAOYSA-N 0.000 claims description 3
- 239000003365 glass fiber Substances 0.000 claims description 3
- 239000011487 hemp Substances 0.000 claims description 3
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 3
- 239000010451 perlite Substances 0.000 claims description 3
- 235000019362 perlite Nutrition 0.000 claims description 3
- 239000011435 rock Substances 0.000 claims description 3
- 239000011248 coating agent Substances 0.000 abstract description 6
- 238000000576 coating method Methods 0.000 abstract description 6
- 229910052782 aluminium Inorganic materials 0.000 description 7
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 7
- 238000005868 electrolysis reaction Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 4
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 description 4
- 239000003575 carbonaceous material Substances 0.000 description 3
- 230000001627 detrimental effect Effects 0.000 description 3
- 239000011810 insulating material Substances 0.000 description 3
- 238000002955 isolation Methods 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 229910010271 silicon carbide Inorganic materials 0.000 description 3
- 229910000323 aluminium silicate Inorganic materials 0.000 description 2
- 239000011449 brick Substances 0.000 description 2
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000010445 mica Substances 0.000 description 2
- 229910052618 mica group Inorganic materials 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 238000009626 Hall-Héroult process Methods 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 229910052729 chemical element Inorganic materials 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 229910001610 cryolite Inorganic materials 0.000 description 1
- 230000003292 diminished effect Effects 0.000 description 1
- 238000005470 impregnation Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000012212 insulator Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
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
- C25C3/085—Cell construction, e.g. bottoms, walls, cathodes characterised by its non electrically conducting heat insulating parts
-
- 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
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)
- Furnace Housings, Linings, Walls, And Ceilings (AREA)
- Electrolytic Production Of Non-Metals, Compounds, Apparatuses Therefor (AREA)
Abstract
The invention relates to an electrolytic cell (100) which includes a box (200) comprising side walls (3), and a side insulation coating covering the side walls (3), the side insulation coating including: thermally insulating elements (1) made of compressible material; bracing elements (2) made of refractory material having at least one side surface, the thermally insulating elements (1) and the bracing elements (2) being affixed in an alternating manner against at least one side wall (3) of the box (200); and inner facing blocks (5) arranged such that each inner facing block (5) bears against the side surface of at least two bracing elements (2). The side insulation coating can also include protection elements (4) made of refractory material or outer facing panels (6).
Description
(57) Abstract : The invention relates to an electrolytic cell (100) which includes a box (200) comprising side walls (3), and a side insulation coating covering the side walls (3), the side insulation coating including: thermally insulating elements (1) made of compressible material; bracing elements (2) made of refractory material having at least one side surface, the thermally insulating ele ments (1) and the bracing elements (2) being affixed in an alternating manner against at least one side wall (3) of the box (200); and inner facing blocks (5) arranged such that each inner facing block (5) bears against the side surface of at least two bracing elements (2). The side insulation coating can also include protection elements (4) made of refractory material or outer facing panels (6).
(57) Abrege :
[Suite sur la page suivante] wo 2016/001743 Al llllllllllllllllllllllllllllllllll^
Cuve d'electrolyse (100) qui comprend un caisson (200) comportant des parois laterales (3), et un revetement lateral d'isolation recouvrant les parois laterales (3), le revetement lateral d'isolation comprenant : des elements thermiquement isolants (1) en materiau compressible, des elements de calage (2) en materiau relractaire presentant au moins une face laterale, les elements thermi quement isolants (1) et les elements de calage (2) etant apposes de Eicon altemee contre au moins une paroi laterale (3) du caisson (200), et des blocs de parement interne (5) agences de sorte que chaque bloc de parement interne (5) prend appui contre la face la terale d'au moins deux elements de calage (2). Le revetement lateral d'isolation peut egalement comprendre des elements de protection (4) en materiau relractaire ou des plaques de parement exteme (6).
2015282394 14 Dec 2016
SIDE INSULATION LINING FOR AN ELECTROLYTIC CELL
The present invention relates to an electrolytic cell used for the production of aluminum by electrolysis.
Aluminum is conventionally produced in aluminum works by electrolysis using the Hall-Heroult process. To this end, an electrolytic pot is provided comprising a pot shell and an internal lining of refractory material. The electrolytic cell also comprises cathode blocks arranged at the bottom of the pot shell, traversed by conductive bars designed to collect the electrolysis current in order to route it to the next electrolytic cell. The electrolytic cell also comprises at least one anode block suspended from an anode support, such as a stem and a cross member, the anode block being partially immersed in an electrolytic bath, above the cathode blocks. A layer of liquid aluminum is formed under the electrolytic bath, covering the cathode blocks as the reaction proceeds. Current flow takes place from the anode support to the cathode via the anode block, the electrolytic bath at a temperature of about 970° C in which alumina is dissolved, and the layer of metal. In order to limit corrosion of the walls of the pot shell, due to the chemical composition of the electrolytic bath and its temperature, it is known to use internal facing blocks made of a carbonaceous material which are superposed on the inner lining of the pot shell. However, despite the presence of these internal facing blocks and the inner lining, heat loss through the vessel walls is very great, which is detrimental to general energy efficiency, to the life time of the cell, and to proper running of the electrolysis process.
One purpose of the present invention aims to overcome this disadvantage. To do this, the invention offers an electrolytic cell designed to contain an electrolytic bath, the electrolytic cell comprising a pot shell having side walls, and a lateral insulating lining covering the side walls, the lateral insulating lining comprising: thermally insulating elements of compressible material, wedging elements made of refractory material having at least one side face, the thermally insulating elements and the wedging elements being alternately affixed against at least one side wall of the pot shell, and the internal facing blocks arranged to protect the pot shell, the thermally insulating elements and the wedging elements of the electrolytic bath, the distance between two adjacent wedging elements being adapted so that each internal facing block bears against the side face of at least two wedging elements.
In this configuration, the wall of the pot shell is partially covered with thermally insulating elements that may be made of compressible material, which greatly limit heat loss and protect the pot shell wall from the great heat generated by the electrolytic bath and the liquid aluminum. Furthermore, the refractory wedging elements interposed between the
12110720 (IRN: P251949) thermally insulating elements of compressible material are used to limit or prevent compression of the thermally insulating elements when building and operating the cell, without forming a thermal bridge that would be harmful to the pot shell wall. The thermally insulating elements are not subjected to detrimental compression between the side wall of the pot shell and the internal facing blocks, so they are not crushed and retain their thermal insulation capacity. The use of thermally insulating elements of compressible material made possible in this way limits the costs of raw materials and installation for an improved, easily adjustable heat balance.
Thermally insulating element of compressible material is taken to mean any element which would be crushed, and therefore degraded by the internal facing blocks, during manufacture or operation of the cell, without the presence of wedging elements. The thermally insulating elements of compressible material may be aerated in structure, in particular based on fibers.
Advantageously, each wedging element has a thickness equal to or greater than the thickness of the thermally insulating elements.
Advantageously, the lateral insulation lining further comprises protective elements made of refractory material arranged between the thermally insulating elements and the internal facing blocks. These protective elements protect the thermally insulating elements arranged behind against any impregnation of electrolyte bath through the internal facing blocks so that the protection of the thermal insulation is reinforced with time.
According to one arrangement, the space between two adjacent wedging elements houses protective elements. In this configuration, the protective elements do not cover the wedging elements but only the thermally insulating elements.
Preferably, each wedging element has a substantially identical thickness to the total thickness of a protective element and a thermally insulating element so that the thermally insulating elements are free from compression. This arrangement therefore makes it possible to maintain the strength and the thermal insulating capacity of the thermally insulating elements of compressible material throughout the life of the cell.
The thermally insulating elements have a thermal insulation coefficient superior to that of the wedging elements and that of the protective elements. In this way it is possible to use thin thermally insulating elements. Their presence has very little impact on the residual volume inside the pot shell for efficient heat insulation. These elements therefore make it possible to reduce heat loss at the side walls of the pot shell without the need to reduce the dimensions of the cathode blocks present in the pot shell and therefore the efficiency of the electrolysis process.
Advantageously, the length of each heat insulation element, measured along the longitudinal axis of the respective wall of the pot shell is greater than that of each wedging element. This arrangement optimizes the thermal insulation of the pot shell and limits thermal bridges.
Typically, the length of each heat insulation element, measured along the longitudinal axis of the respective wall of the pot shell, is at least four times greater than that of each wedging element.
Preferably, the lateral insulation lining further comprises external facing plates, preferably made of silicon carbide (SiC), extending against the at least one side wall of the pot shell and arranged in line above the wedging elements, the thermally insulating elements, and, as appropriate, the protective elements. These plates therefore protect the thermally insulating elements from above and the pot shell from corrosion. They also help localized and controlled removal of heat flow at a chosen surface.
Advantageously, each external facing plate has a thickness substantially identical to that of each wedging element. The side edges of the thermally insulating elements and, as appropriate, the protective elements are therefore covered and protected vertically from the corrosive environment of the electrolytic cell.
Advantageously, the external facing plates are formed integrally with the internal facing blocks.
According to one option, the compressible material of the thermally insulating element is made of fibrous material such as glass fiber, carbon fiber, rock fiber, or hemp fiber material. It may also be of the highly insulating microporous type or be based on perlite, diatomaceous earth or calcium silicate.
Advantageously, the compressible material of the thermally insulating elements has a thermal conductivity of less than 0.5W/m.K (measured using the ASTM C201 method at room temperature).
Advantageously, the thermally insulating elements made of compressible material are surrounded by a layer of material resistant to corrosion from electrolyte fumes. Highly corrosive electrolyte fumes may penetrate and spread throughout the life time of the electrolytic cell against the side walls of the pot shell and degrade the compressible material of the thermally insulating element. Enclosing the compressible material in a layer of material resistant to corrosion from electrolyte fumes (or a vapor barrier) helps to protect and extend the range of materials that can be used to make the thermally insulating element.
The layer of material resistant to corrosion from electrolyte fumes is preferably formed of an aluminum film.
Advantageously, the wedging elements exhibit a resistance to compression greater than 10 MPa.
Advantageously, the wedging elements have lower thermal conductivity than the thermal conductivity of the internal facing blocks and, as appropriate, of the external facing plates.
The wedging elements do not therefore form thermal conductivity bridges detrimental to the pot shell wall between the thermally insulating elements.
According to one option, the wedging elements have a thermal conductivity of less than 2 W/m.K (measured using the ASTM C201 method at room temperature).
Advantageously, the wedging elements are made of refractory bricks, for example aluminosilicate or mica plates, which have good compressive strength and low thermal conductivity.
Typically, the protective elements are of the same material, or of the same type, as that of the wedging elements.
Advantageously, the internal facing blocks are made of carbon-based material, in particular SiC, which ensure that the pot shell will be durable, despite the highly corrosive electrolysis conditions. Other aspects, objects and advantages of the invention will appear more clearly on reading the following description of an embodiment thereof, given as a non-limiting example and with reference to the accompanying drawings. The figures are not necessarily to scale for all the elements shown in order to improve readability. In the following description, for simplicity, elements that are identical, similar or equivalent to the various embodiments have the same reference numbers.
Figure 1 illustrates a partial schematic view of the inside of an electrolytic cell according to one embodiment of the invention.
Figure 2 illustrates another partial schematic view of the inside of an electrolytic cell according to one embodiment of the invention.
Figure 3 illustrates still another partial schematic view of the inside of an electrolytic cell according to one embodiment of the invention.
Figure 4 is a partial sectional view of the inside of an electrolytic cell according to the embodiment of the invention illustrated in figure 3.
As illustrated in figure 1, the electrolytic cell 100 comprises a pot shell 200 and a lateral insulation lining incorporating thermally insulating elements 1 and wedging elements 2 affixed alternately against a side wall 3 of pot shell 200. These thermally insulating elements 1 are covered with protective elements 4 (figure 2) which in their turn cover internal facing blocks 5 bearing against the wedging elements 2 (figure 3). External facing plates 6 also extend against the side wall 3 of the pot shell 200 and in line above the wedging elements 2 of the thermally insulating elements 1 and protective elements 4. (figure 3).
The thermally insulating elements 1 are protected against compression between the side wall of the pot shell 200 and the internal facing blocks 5 by the arrangement of the wedging elements 2 so that they can be made of a compressible thermally insulating material. The compressible thermally insulating material may be, for example, fibrous material such as glass fiber, carbon fiber, rock fiber, or hemp fiber. The compressible thermally insulating material may also, for example, be of the highly insulating microporous type or be based on perlite, diatomaceous earth or calcium silicate.
The thermally insulating elements 1 made of compressible material have a high thermal insulation coefficient, such that a small thickness of this compressible material is enough to ensure good thermal insulation of the wall of the pot shell they cover.
The wedging elements 2 include a refractory material such as refractory brick aluminosilicate or mica plates. The wedging elements must protect the thermally insulating elements from being crushed and contribute advantageously to thermal insulation. These wedging elements 2, as well as the protective elements 4 in general exhibit thermal insulating properties inferior to those of thermally insulating elements 1 even though they are good insulators. Their thermal conductivity is less than 2 W/m.K. The length of each heat insulation element 1, measured along the longitudinal axis of the wall 3 of the pot shell 200 (x axis, figure 1), is chosen so as to be greater than that of each wedging element 2. Typically, a length ratio of one to four and preferably one to five is applied to obtain an optimal reduction of heat loss on the walls 3 of the pot shell 200.
Furthermore, the thickness of each wedging element 2 is equal to or greater than that of the thermally insulating element 1. In addition, the planned distance between two adjacent wedging elements 2 is less than the length of an internal facing block 5 along the longitudinal axis x of the wall 3 of the pot shell 200 so that internal facing block 5 can bear against at least two wedging elements 2. In this way, each internal facing block 5 rests against at least two wedging elements 2. The latter have a compressive strength greater than 10 MPa so that they are sufficiently rigid and incompressible to prevent internal facing blocks 5 from compressing the thermally insulating elements 1 made of compressible material which would otherwise present diminished thermal insulating properties.
The internal facing block 5 is a carbon-based material. Its role is to help protect the wall 3 of the pot shell 200 and the thermally insulating elements 1 from corrosion by liquid aluminum and/or the electrolytic bath at very high temperature. It is intended to cover all of the thermally insulating elements 1, the wedging elements 2 and at least a part of the external facing elements 6.
As illustrated in figure 2, protective elements 4 can be inserted between the thermally insulating elements 1 and the internal facing blocks 5, in the space between two adjacent wedging elements 2. Each wedging element 2 is of substantially identical thickness to the total thickness of a protective element 4 and a thermally insulating element 1. These protective elements 4, which are made of refractory material can protect the insulation over time and complete the thermal insulation provided by the thermally insulating elements'!. The protective elements 4 may be of the same composition as the wedging elements 2.
As illustrated in figure 3, external facing plates 6 made of silicon carbide-based material (SiC), of substantially identical thickness to that of the wedging elements 2, cover the upper side edge of the thermally insulating elements 1, wedging elements 2 and protective elements 4 between the inner wall 3 of the pot shell 200 and internal facing blocks 5. This arrangement helps to protect the different elements against corrosion and to provide, at the appropriate location, suitable heat exchange between the electrolytic bath, the pot shell wall and the outside atmosphere to create a bank of cryolite protecting internal facing blocks 5.
According to a possibility that has not been illustrated, all the side walls 3 of the pot shell are covered by thermally insulating elements 1, wedging elements 2, protective elements 4, internal facing blocks 5 and external facing plates 6. In this way, pot shell 200 has an optimal thermal profile.
Figure 4 is a partial sectional view of the electrolytic cell illustrating the pot shell 200, the thermally insulating elements 1 affixed directly against a wall 3 of pot shell 200 and adjacent to protective elements 4, protected by internal facing blocks 5 and external facing plates 6.
In this way, the present invention offers an electrolytic cell with a lateral insulation lining to effectively reduce heat loss through optimal insulation that takes up little space.
It goes without saying that the invention is not limited to the embodiments described above by way of example, but includes all technical equivalents and variants of the means described and combinations of these.
2015282394 14 Dec 2016
Claims (15)
1. Electrolytic cell designed to contain an electrolytic bath comprising a pot shell having side walls and a lateral insulation lining covering the side walls, characterized in that the lateral insulation lining comprises:
thermally insulating elements of compressible material, wedging elements made of refractory material having at least one side face, the thermally insulating elements and the wedging elements being alternately affixed against at least one side wall f the pot shell, and internal facing blocks arranged to protect the pot shell, the thermally insulating elements and the wedging elements of the electrolytic bath, the distance between two adjacent wedging elements being adapted so that each internal facing block bears against the side face of at least two wedging elements.
2 . An electrolytic cell according to claim 1, wherein each wedging element has thickness equal to or greater than the thickness of the thermally insulating elements.
3. Electrolytic cell according to one of claims 1 to 2, wherein the lateral insulation lining further comprises protective elements made of refractory material arranged between thermally insulating elements and internal facing blocks.
4. Electrolytic cell according to claim 3, wherein the space between two adjacent wedging elements houses the protective elements.
5. Electrolytic cell according to one of claims 3 to 4, wherein each wedging element has substantially the same thickness as the combined thickness of a thermally insulating element and a protective element such that the thermally insulating elements are free of compression.
6. Electrolytic cell according to one of claims 3 to 5, wherein the thermally insulating elements have a thermal insulation coefficient superior to that of the wedging elements and that of the protective elements.
7. Electrolytic cell according to one of claims 1 to 6, wherein the length of each heat insulation element, measured along the longitudinal axis of the respective wall of pot shell, is greater than that of each wedging element.
12110720 (IRN: P251949)
2015282394 14 Dec 2016
8. Electrolytic cell according to one of claims 1 to 7, wherein the lateral insulation lining further comprises external facing plates extending against the at least one side wall of the pot shell and arranged in line above the wedging elements and the thermally insulating elements.
9. Electrolytic cell according to claim 8, wherein each external facing plate has a substantially identical thickness to that of each wedging element.
10. Electrolytic cell according to one of claims 1 to 9, wherein the compressible material of the thermally insulating elements is made of fibrous material such as a material of glass fiber, carbon fiber, rock fiber or hemp fiber of the highly insulating microporous type, or based on perlite, diatomaceous earth or calcium silicate.
11. Electrolytic cell according to one of claims 1 to 10, wherein the wedging elements display a resistance to compression greater than 10 MPa.
12. Electrolytic cell according to one of claims 1 to 11, wherein the wedging elements have a lower thermal conductivity than the thermal conductivity of internal facing blocks and, where appropriate, external facing plates.
13. Electrolytic cell according to one of claims 1 to 12, wherein the wedging elements display a thermal conductivity of less than 2 W/m.K.
14. Electrolytic cell according to one of claims 1 to 13, wherein the compressible material of the thermally insulating elements has a thermal conductivity of less than 0.5W/m.K.
15. Electrolytic cell according to one of claims 1 to 14, wherein the thermally insulating elements of compressible material are surrounded by a layer of material resistant to corrosion by electrolyte fumes.
Rio Tinto Alcan International Limited
Patent Attorneys for the Applicant/Nominated Person
SPRUSON & FERGUSON
12110720 (IRN: P251949)
200
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR1401518A FR3023301B1 (en) | 2014-07-04 | 2014-07-04 | ELECTROLYSIS TANK |
| FR1401518 | 2014-07-04 | ||
| PCT/IB2015/001116 WO2016001743A1 (en) | 2014-07-04 | 2015-07-01 | Side insulation coating for an electrolytic cell |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| AU2015282394A1 AU2015282394A1 (en) | 2017-01-12 |
| AU2015282394B2 true AU2015282394B2 (en) | 2019-03-07 |
Family
ID=51483483
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| AU2015282394A Active AU2015282394B2 (en) | 2014-07-04 | 2015-07-01 | Side Insulation Lining for an Electrolytic Cell |
Country Status (7)
| Country | Link |
|---|---|
| EP (1) | EP3164529B1 (en) |
| CN (1) | CN106661747B (en) |
| AU (1) | AU2015282394B2 (en) |
| CA (1) | CA2950692C (en) |
| FR (1) | FR3023301B1 (en) |
| RU (1) | RU2689292C2 (en) |
| WO (1) | WO2016001743A1 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR3129157A1 (en) * | 2021-11-18 | 2023-05-19 | Rio Tinto Alcan International Limited | INTERNAL LINER SYSTEM FOR ELECTROLYSIS TANK |
| WO2023233196A1 (en) * | 2022-06-03 | 2023-12-07 | Vedanta Limited (Aluminium & Power) | Lining design of electrolytic cell in an aluminum smelter |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0399786A2 (en) * | 1989-05-25 | 1990-11-28 | Alcan International Limited | Refractory linings capable of resisting sodium and sodium salts |
Family Cites Families (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5560809A (en) * | 1995-05-26 | 1996-10-01 | Saint-Gobain/Norton Industrial Ceramics Corporation | Improved lining for aluminum production furnace |
| RU2186880C1 (en) * | 2001-03-05 | 2002-08-10 | Общество с ограниченной ответственностью "АЛКОРУС ИНЖИНИРИНГ" | Side lining of aluminum electrolyzer |
| CN2721655Y (en) * | 2004-08-31 | 2005-08-31 | 贵阳铝镁设计研究院 | Arranging structure of lining material in electrolytic bath side |
| CN100415938C (en) * | 2004-12-27 | 2008-09-03 | 沈阳铝镁设计研究院 | Lining structure of aluminium electrolytic bath |
| RU2294404C1 (en) * | 2005-09-20 | 2007-02-27 | Открытое акционерное общество "Сибирский научно-исследовательский, конструкторский и проектный институт алюминиевой и электродной промышленности" (ОАО "СибВАМИ") | Cathode device of aluminum cell |
| FR2893329B1 (en) * | 2005-11-14 | 2008-05-16 | Aluminium Pechiney Soc Par Act | ELECTROLYSIS TANK WITH THERMAL EXCHANGER. |
| CN201195753Y (en) * | 2008-04-29 | 2009-02-18 | 东北大学设计研究院（有限公司） | Aluminum cell long direction end socket grid section insulation structure |
| CN101423955A (en) * | 2008-11-21 | 2009-05-06 | 中国铝业股份有限公司 | Lining structure of large-sized aluminum cell |
| CN101709486B (en) * | 2009-12-18 | 2012-05-30 | 中国铝业股份有限公司 | Aluminium electrolysis bath |
| CN201793762U (en) * | 2010-07-30 | 2011-04-13 | 任必军 | Energy locking structure for aluminum electrolytic cells |
| CN201908138U (en) * | 2010-12-17 | 2011-07-27 | 贵阳铝镁设计研究院有限公司 | Heat-preserving inside-lining structure of aluminum electrolytic cell |
| CN202116666U (en) * | 2011-06-24 | 2012-01-18 | 贵阳铝镁设计研究院有限公司 | Lateral portion structure of lining of refined aluminum tank |
| CN103122463B (en) * | 2011-11-21 | 2015-07-22 | 沈阳铝镁设计研究院有限公司 | Heat-insulated type cell lining side composite block for aluminium electrolysis cell |
| CA2893476C (en) * | 2012-12-13 | 2018-01-16 | Sgl Carbon Se | Side-wall block for a wall in an electrolytic cell for reducing aluminium |
| CN203307449U (en) * | 2013-06-29 | 2013-11-27 | 贵阳铝镁设计研究院有限公司 | Lining structure of side part of refined aluminum groove |
-
2014
- 2014-07-04 FR FR1401518A patent/FR3023301B1/en not_active Expired - Fee Related
-
2015
- 2015-07-01 RU RU2017103537A patent/RU2689292C2/en active
- 2015-07-01 WO PCT/IB2015/001116 patent/WO2016001743A1/en active Application Filing
- 2015-07-01 EP EP15814096.2A patent/EP3164529B1/en active Active
- 2015-07-01 AU AU2015282394A patent/AU2015282394B2/en active Active
- 2015-07-01 CA CA2950692A patent/CA2950692C/en active Active
- 2015-07-01 CN CN201580034926.5A patent/CN106661747B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0399786A2 (en) * | 1989-05-25 | 1990-11-28 | Alcan International Limited | Refractory linings capable of resisting sodium and sodium salts |
Also Published As
| Publication number | Publication date |
|---|---|
| CA2950692C (en) | 2022-07-26 |
| CA2950692A1 (en) | 2016-01-07 |
| EP3164529B1 (en) | 2019-04-24 |
| FR3023301A1 (en) | 2016-01-08 |
| FR3023301B1 (en) | 2016-07-01 |
| EP3164529A1 (en) | 2017-05-10 |
| AU2015282394A1 (en) | 2017-01-12 |
| WO2016001743A1 (en) | 2016-01-07 |
| RU2017103537A3 (en) | 2019-01-28 |
| RU2017103537A (en) | 2018-08-06 |
| EP3164529A4 (en) | 2018-01-24 |
| RU2689292C2 (en) | 2019-05-24 |
| CN106661747A (en) | 2017-05-10 |
| CN106661747B (en) | 2018-08-07 |
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