CN2627009Y - An anode protecting device - Google Patents
An anode protecting device Download PDFInfo
- Publication number
- CN2627009Y CN2627009Y CN 03246633 CN03246633U CN2627009Y CN 2627009 Y CN2627009 Y CN 2627009Y CN 03246633 CN03246633 CN 03246633 CN 03246633 U CN03246633 U CN 03246633U CN 2627009 Y CN2627009 Y CN 2627009Y
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- CN
- China
- Prior art keywords
- anode
- carbon
- aluminum
- steel claw
- dry type
- 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.)
- Expired - Fee Related
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- 229910000831 Steel Inorganic materials 0.000 claims abstract description 36
- 239000010959 steel Substances 0.000 claims abstract description 36
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 22
- 229910052799 carbon Inorganic materials 0.000 claims abstract description 22
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 21
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 20
- 238000005868 electrolysis reaction Methods 0.000 claims abstract description 14
- 229910000805 Pig iron Inorganic materials 0.000 claims abstract description 12
- 230000005855 radiation Effects 0.000 claims abstract description 5
- 238000005520 cutting process Methods 0.000 claims abstract description 4
- 239000000203 mixture Substances 0.000 claims description 17
- 239000002245 particle Substances 0.000 claims description 16
- 229910052698 phosphorus Inorganic materials 0.000 claims description 10
- 239000011574 phosphorus Substances 0.000 claims description 10
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 claims description 9
- 239000004411 aluminium Substances 0.000 claims description 8
- 238000000034 method Methods 0.000 claims description 6
- 238000005266 casting Methods 0.000 claims description 4
- 238000000465 moulding Methods 0.000 claims description 4
- 238000004026 adhesive bonding Methods 0.000 claims description 2
- 239000000463 material Substances 0.000 claims description 2
- 239000011087 paperboard Substances 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 230000002035 prolonged effect Effects 0.000 abstract description 2
- 210000000078 claw Anatomy 0.000 abstract 5
- 239000008187 granular material Substances 0.000 abstract 4
- 238000006243 chemical reaction Methods 0.000 abstract 2
- 230000007797 corrosion Effects 0.000 abstract 1
- 238000005260 corrosion Methods 0.000 abstract 1
- 239000003792 electrolyte Substances 0.000 abstract 1
- 230000008018 melting Effects 0.000 abstract 1
- 238000002844 melting Methods 0.000 abstract 1
- 235000010210 aluminium Nutrition 0.000 description 15
- 230000003628 erosive effect Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 239000011230 binding agent Substances 0.000 description 2
- 238000001354 calcination Methods 0.000 description 2
- 239000000571 coke Substances 0.000 description 2
- 238000004939 coking Methods 0.000 description 2
- 238000003487 electrochemical reaction Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 description 1
- 230000003044 adaptive effect Effects 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000004523 agglutinating effect Effects 0.000 description 1
- 150000001335 aliphatic alkanes Chemical class 0.000 description 1
- AZDRQVAHHNSJOQ-UHFFFAOYSA-N alumane Chemical compound [AlH3] AZDRQVAHHNSJOQ-UHFFFAOYSA-N 0.000 description 1
- 125000002837 carbocyclic group Chemical group 0.000 description 1
- 239000003575 carbonaceous material Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 229910021385 hard carbon Inorganic materials 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 1
- 238000012946 outsourcing Methods 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
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- Electrolytic Production Of Metals (AREA)
Abstract
A novel anode protection device comprises an annular housing arranged on a phosphoric pig iron cast between an anode steel claw and carbon holes around the steel claw, and dry-type anode paste granules filled between the steel claw and the annular housing. The dry-type anode paste granules are granules of 15-0 mm produced by cutting a dry-type anode paste. The anode paste granules can be self-sintered to form a uniformly retracted ring by high-temperature electrolysis radiation, conduction heat and resistive heat of carbon blocks to protect the steel claw and the phosphoric pig iron from corrosion of electrolyte and reduce the anode carbon block consumption for pre-baking of aluminum per ton, thereby prolonging the electrode conversion cycle, preventing melting of the steel claw, and ensuring the quality of aluminum. According to conservative statistics, the production cost of an aluminum plant with annual yield of 120,000 tons of electrolyzed aluminum can be reduced by 8.81 million yuan per year if the conversion cycle of each carbon anode is prolonged by two days.
Description
Technical field the utility model belongs to the non-ferrous metal technical field of aluminum electrolysis, is a kind of device of protecting the prebaked cell for aluminum-reduction anode steel jaw.
Background technology prebaked cell for aluminum-reduction anode block group comprises guide rod, steel pawl, carbon piece three parts.The carbon hole that carbon piece top has four assembling steel pawls to use connects with the casting of the phosphorus pig iron between steel pawl and the carbon hole.The anode block bottom is immersed in the high-temperature electrolysis matter about 950 ℃ in Aluminium Electrolysis, and broken hair is given birth to electrochemical reaction and consumed.For avoiding ionogen to corrode the steel pawl and the phosphorus pig iron, influence the primary aluminum quality and cause utmost point accident, when carbon anode constantly consumes in electrolysis when being about to reach capacity height, just must the replacing anode.The pre-calcining electrolytic cell anode protection ring is to begin one's study the early 1990s, because anode protection ring has erosion-resistant characteristic, makes anode effectively participate in the time lengthening of electrochemical reaction, has promptly prolonged the anode life cycle.But existing pre-calcining electrolytic cell anode protection ring (being called for short the prebake ring) is to make with carbon materials, and it is shaped as two semicircular rings, is enclosed within the above steel pawl outside of carbon anode, becomes a domain with the carbon paste adhesive joints.The deficiency that this prebake ring exists is: because this guard ring has passed through the roasting moulding before use; softening, the coking agglutinating process of binder free in electrolytic process; so be enclosed within on the carbon anode steel pawl; there is the slit unavoidably with the junction of anode block; ionogen still can be invaded and be corroded the steel pawl and the phosphorus pig iron; still there is the phenomenon of polluting the electrolysis primary aluminum, also very limited to the reduction of carbon anode residual anode ratio and steel pawl rehabilitation cost.
The summary of the invention the purpose of this utility model is to provide a kind of novel anode protection device, and it and positive interpolar bond powerful, and anticorrosive effect is remarkable, can effectively prolong anode change cycle, reduces production costs, and guarantees the primary aluminum quality.
For achieving the above object; the technical scheme that the utility model is taked is: this novel anode protection device is to establish a circular shell around the steel pawl on the phosphorus pig iron of casting between anode steel jaw and the carbon hole; dry type anode mix particle is piled up between steel pawl and circular shell; the anode mix particle is in the Aluminium Electrolysis process; the resistance heat that utilizes the heat of high-temperature electrolysis radiation, conduction and carbon piece self is sinter molding voluntarily; form one and shrink ring uniformly; play the effect of protection steel pawl, make the steel pawl and the phosphorus pig iron avoid electrolytical erosion.
Described dry type anode mix particle is the particle of dry type anode mix in produced simultaneously 15～0mm grade of cutting.
The novel anode protection device that the utility model provides; pile up the dry type anode mix particle between steel pawl and circular shell; in the Aluminium Electrolysis process; utilize the high-temperature electrolysis radiation; the heat of conduction and the resistance heat of carbon piece self around anode steel jaw, sinter into voluntarily one hard; compact and have a sintered ring of excellent conductive performance; the steel pawl and the phosphorus pig iron are played a protective role; make the steel pawl avoid electrolytical erosion; make the anode residual anode ratio 36～40% be reduced to 20% when originally not adding guard ring; reduced the consumption of ton aluminium prebaked anode carbon piece; thereby reached prolongation anode change cycle (more than 28 days) and prevented the fusing of steel pawl, guaranteed the purpose of primary aluminum quality.According to incomplete measuring and calculating: the anode change cycle that prolongs two days by each carbon anode calculates, can save 0.6 ton of anode block, 228 prebaked cells of applicant Lanzhou Aluminium Industry Co., Ltd, produce 120000 tons of electrolytic aluminums per year, every prebaked cell has 28 groups of anode blocks, then can save 3786 tons of prebaked anode carbon pieces full company's year, 1200 tons of the consumptions in 1 year of deduction dry type anode mix particle, year can be saved 5,890,000 yuan.Owing to adopt self-baking formula aluminium cell anode guard ring, a year saving outsourcing anode ring expense is 2,920,000 yuan.Then annual total economic benefit is 8,810,000 yuan.
Description of drawings Fig. 1 is the structural representation of novel anode protection device.
Fig. 2 is novel anode protection device partial top view.
Among the specific implementation figure: the 1-anode rod; The 2-anode steel jaw; The 3-anode block; The 4-phosphorus pig iron; 5-dry type anode mix particle; The 6-circular shell.
As shown in Figure 1 and Figure 2; the novel anode protection device that the utility model provides; be on the phosphorus pig iron 4 of casting between anode steel jaw 2 and the carbon hole, a circular shell 6 to be set around steel pawl 2; circular shell 6 can be with inserting formula, inserted or thread gluing formula industrial paperboard, thin aluminum sheet certainly or other surrounds the material that primary aluminum can not pollute; as: strip boards one end of suitable length is made plug-like; the other end is established the socket adaptive with it, and plug is inserted in the socket, surrounds a circular shell 6.Dry type anode mix particle 5 is piled up between steel pawl 2 and circular housing 6.What dry type anode mix particle 5 utilized is the particle of dry type anode mix 15～0mm grade of generation when cutting.
Above-mentioned dry type anode mix particle 5, in the Aluminium Electrolysis process, the resistance heat that utilizes the heat of high-temperature electrolysis radiation, conduction and carbon piece self is sinter molding voluntarily, and when temperature surpassed 140 ℃ of left and right sides, the binding agent in the dry type anode mix particle began to soften, decompose; Sticking with paste internal adsorption water and constitution water and low molecule alkane in the time of 200 ℃～300 ℃ is excluded; When temperature surpassed 350 ℃, the hard carbon that the coke in the modified pitch begins in the bonding paste formed the coke lattice, and integral body is the thickness state; In the time of 500 ℃～650 ℃, the carbocyclic ring polymerization forms semicoke; When temperature surpasses 700 ℃; dry type anode mix coking is finished substantially; around anode steel jaw 2, form one hard, compact and have the sintered ring of excellent conductive performance, play the effect of protection steel pawl 2, make the steel pawl 2 and the phosphorus pig iron 4 avoid electrolytical erosion.
Claims (3)
1, a kind of novel anode protection device; it is characterized in that on the phosphorus pig iron of casting between anode steel jaw and the carbon hole, surrounding a circular shell around the steel pawl; dry type anode mix particle is piled up between steel pawl and circular shell; pile up the dry type anode mix particle between steel pawl and circular shell; in the Aluminium Electrolysis process; the resistance heat that utilizes the heat of high-temperature electrolysis radiation, conduction and carbon piece self is sinter molding voluntarily, forms one and shrinks ring uniformly.
2, novel anode protection device according to claim 1 is characterized in that above-mentioned dry type anode mix particle is the particle of dry type anode mix in produced simultaneously 15～0mm grade of cutting.
3, novel anode protection device according to claim 1 is characterized in that above-mentioned circular shell around the steel pawl is with from inserting formula, inserted or thread gluing formula industrial paperboard, thin aluminum sheet or other surrounds the material that primary aluminum can not pollute.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03246633 CN2627009Y (en) | 2003-04-16 | 2003-04-16 | An anode protecting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03246633 CN2627009Y (en) | 2003-04-16 | 2003-04-16 | An anode protecting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2627009Y true CN2627009Y (en) | 2004-07-21 |
Family
ID=34252082
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03246633 Expired - Fee Related CN2627009Y (en) | 2003-04-16 | 2003-04-16 | An anode protecting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2627009Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102373485A (en) * | 2010-08-26 | 2012-03-14 | 沈阳铝镁设计研究院有限公司 | Anode carbon lump with slotted holes at its upper part |
| CN105112939A (en) * | 2015-09-09 | 2015-12-02 | 重庆旗能电铝有限公司 | Method for manufacturing prebaked anode steel stud guard ring |
-
2003
- 2003-04-16 CN CN 03246633 patent/CN2627009Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102373485A (en) * | 2010-08-26 | 2012-03-14 | 沈阳铝镁设计研究院有限公司 | Anode carbon lump with slotted holes at its upper part |
| CN105112939A (en) * | 2015-09-09 | 2015-12-02 | 重庆旗能电铝有限公司 | Method for manufacturing prebaked anode steel stud guard ring |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: CHINESE ALUMINIUM CO., LTD. Free format text: FORMER OWNER: LANZHOU ALUMINIUM INDUSTRY CO., LTD. Effective date: 20071228 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20071228 Address after: No. 62 North Street, Beijing, Xizhimen: 100082 Patentee after: Aluminum Corporation of China Limited Address before: Xigu District of Gansu city of Lanzhou province Shandan Street No. 375, zip code: 730060 Patentee before: Lanzhou Aluminium Industry Co., Ltd. |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20040721 Termination date: 20120416 |