CN1396309A - Protecting jacket of self-calcining self-shaping anode and its preparing process - Google Patents
Protecting jacket of self-calcining self-shaping anode and its preparing process Download PDFInfo
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- CN1396309A CN1396309A CN 02125001 CN02125001A CN1396309A CN 1396309 A CN1396309 A CN 1396309A CN 02125001 CN02125001 CN 02125001 CN 02125001 A CN02125001 A CN 02125001A CN 1396309 A CN1396309 A CN 1396309A
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Abstract
A process for preparing the protecting jacket of steel jaw as anode includes such steps as preparing protecting material from C, asphalt and industrial graphite through mixing, sleeving a cover on the steel jaw, filling the protecting material in the gap between the cover and the steel jaw, and self calcining in an electrolyzer. It can elongate the service life of anode, and stabilize the quality of raw aluminium.
Description
Technical field
The present invention relates to metallurgy of aluminium equipment technical field, particularly a kind of protecting jacket of self-calcining self-shaping anode and preparation method thereof.
Background technology
Anode mainly plays conduction in the existing electrolysis of aluminum, and itself also participates in electrochemical reaction.Prebaked anode has the level of automation height, pollutes advantages such as little during electrolysis, is extensive use of by each aluminium manufacturer at present.Prebaked anode is made up of anode rod, steel pawl and anode carbon block three parts, and wherein anode rod links to each other with power supply, by the steel pawl electric current is imported anode carbon block, carries out electrolysis.In electrolyzer, along with the continuous consumption of anode carbon block, the anode system that needs regularly to comprise the steel pawl descends, and electrolyticly normally carries out guaranteeing, when anode drops to certain altitude, the steel pawl will be immersed in the ionogen of the molten profit of high temperature, washes away, corrodes owing to electrolytical, and the steel pawl will be damaged, will cause like this copper pawl scrap with primary aluminum in the content of iron, production cost is raise, on the other hand, influence the quality and the grade of primary aluminum.How to solve the burn into problem of oxidation of anode steel jaw, improve its work-ing life, become one of aluminium production industry urgent problem.Disclosed " protective sleeve of aluminum electrolytic pre-baked anode steel grab and preparation method thereof " patent application by name in Patent Office of the People's Republic of China's on March 27th, 2002; number of patent application: 01128395.5; it is siccative with the electrolyzer waste and old cathode carbon block after fragmentation processing that this patent application discloses a kind of; with syrup or starch is binding agent; mix the back as preservative; preservative directly made firm by ramming by mould be installed in the anode steel and grab, during use, preservative carries out self-baking and forms a firm protective sleeve.This technology in actual use since electrolyzer in high temperature action and electrolytical washing away, all left and right sides protective sleeve deliquescing is caved in, do not have the protection anode steel jaw effect.
Summary of the invention
For addressing the above problem, the invention discloses a kind of protecting jacket of self-calcining self-shaping anode and preparation method thereof.Protecting jacket of self-calcining self-shaping anode is characterized in that being with on the anode steel jaw tubular protection overcoat, is filled with protecting materials between protection overcoat and the steel pawl.
The protection overcoat can be metal or non-metallic material, preferred aluminium.The preferred 2-3 of the thickness of protecting materials centimetre.
Protecting materials comprises carbon element and caking agent, and wherein carbon element accounts for 40-70% and granularity less than 5mm, and pitch accounts for 20-30%, and industrial Graphite Powder 99 accounts for 10-20%, at normal temperatures dry mixed evenly after, be protecting materials.
Carbon element can be the useless living thickener or the scrap anode of discharging in calcined petroleum coke, electro-forge coal, the prebaked anode production process.The preferred pitch powder of pitch, its granularity is less than 1mm.
A kind of preparation method of protecting jacket of self-calcining self-shaping anode; it is characterized in that at first making a tubular protection overcoat; to protect overcoat to be enclosed within on the steel pawl; again ready protecting materials is filled in the space between protection overcoat and the steel pawl, just can puts into electrolyzer then and carry out from roasting.
Because the present invention has adopted the mode of the type that has of one's own from roasting, all process steps all is to carry out at normal temperatures, and the starting material of employing are the waste material in the electrolytic aluminum process basically, so technology is simple, cost is also cheaper, has solved the problem that deliquescing is caved in the self-baking moulding process in the documents.
Has stronger anticorrosive and oxidation-resistance at formed ring protection cover in the roasting process; can effectively protect anode steel jaw; make anode steel jaw prolong two days even the longer time work-ing life in aluminium cell, and stablized the quality of primary aluminum, have remarkable economic efficiency.
At present in the electrolytic aluminum process; anode consumes the obnoxious flavour that is produced naturally all has a cover treatment unit that it is handled; and the weight of protecting materials that this invention adds is compared with the weight of anode carbon block, can ignore, so can not work the mischief to environment.
Description of drawings
Accompanying drawing 1 is a structural representation of the present invention.
Embodiment
Embodiment one:
As shown in Figure 1, tubular protection overcoat 4 made from aluminium sheet of cover on each steel pawl 2 of the good anode carbon block 5 of roasting, aluminium sheet adopts the aluminium of 0.5-1mm, preferred 3 centimetres of the spacing between protection overcoat and the steel pawl.Fill protecting materials 3 between protection overcoat and steel pawl, protecting materials selects for use 50% carbon element aggregate, 30% pitch and 20% industrial Graphite Powder 99 to mix.Wherein the plain aggregate of charcoal is calcined petroleum coke or electricity section coal, and its granularity is less than 5mm, the preferred pitch powder of pitch, and its granularity is less than 1mm.After carrying out above work; the anode that directly will comprise anode rod 1, steel pawl, anode carbon block is put into electrolyzer and is used; along with the temperature of protecting materials in electrolyzer raises; protecting materials is invaded profit through softening, pitch; coking forms fine and close ring protection ring in the protection overcoat; closely be wrapped in the steel pawl around, the steel pawl is played a protective role.
Embodiment two:
As shown in Figure 1, tubular protection overcoat 4 made from aluminium sheet of cover on each steel pawl 2 of the good anode carbon block 5 of roasting, aluminium sheet adopts the aluminium of 0.5-1mm, preferred 3 centimetres of the spacing between protection overcoat and the steel pawl.Fill protecting materials 3 between protection overcoat and steel pawl, protecting materials selects for use 50% carbon element aggregate, 30% pitch and 20% industrial Graphite Powder 99 to mix.Wherein the plain aggregate of charcoal is the useless raw material in the prebaked anode production process, is broken for granularity less than 5mm; The preferred pitch powder of pitch, its granularity is less than 1mm.After carrying out above work; the anode that directly will comprise anode rod 1, steel pawl, anode carbon block is put into electrolyzer and is used; along with the temperature of protecting materials in electrolyzer raises; protecting materials is invaded profit through softening, pitch; coking forms fine and close ring protection ring in the protection overcoat; closely be wrapped in the steel pawl around, the steel pawl is played a protective role.
Claims (7)
1. protecting jacket of self-calcining self-shaping anode is characterized in that being with on the anode steel jaw tubular protection overcoat, is filled with protecting materials between protection overcoat and the steel pawl.
2. protecting jacket of self-calcining self-shaping anode as claimed in claim 1, it is characterized in that protecting overcoat can be metal or non-metallic material, preferred aluminium.
3. protecting jacket of self-calcining self-shaping anode as claimed in claim 1 is characterized in that the preferred 2-3 of thickness centimetre of protecting materials.
4. protecting jacket of self-calcining self-shaping anode according to claim 1; it is characterized in that protecting materials comprises carbon element and caking agent; wherein carbon element accounts for 40-70% and granularity less than 5mm; pitch accounts for 20-30%; industrial Graphite Powder 99 accounts for 10-20%; at normal temperatures dry mixed evenly after, be protecting materials.
5. protecting jacket of self-calcining self-shaping anode according to claim 4 is characterized in that carbon element can be the useless living thickener or the scrap anode of discharging in calcined petroleum coke, electro-forge coal, the prebaked anode production process.
6. protecting jacket of self-calcining self-shaping anode according to claim 4 is characterized in that the preferred pitch powder of pitch, and its granularity is less than 1mm.
7. the preparation method of a protecting jacket of self-calcining self-shaping anode; it is characterized in that at first making a tubular protection overcoat; to protect overcoat to be enclosed within on the steel pawl; again ready protecting materials is filled in the space between protection overcoat and the steel pawl, just can puts into electrolyzer then and carry out from roasting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02125001 CN1396309A (en) | 2002-06-19 | 2002-06-19 | Protecting jacket of self-calcining self-shaping anode and its preparing process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02125001 CN1396309A (en) | 2002-06-19 | 2002-06-19 | Protecting jacket of self-calcining self-shaping anode and its preparing process |
Publications (1)
| Publication Number | Publication Date |
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| CN1396309A true CN1396309A (en) | 2003-02-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 02125001 Pending CN1396309A (en) | 2002-06-19 | 2002-06-19 | Protecting jacket of self-calcining self-shaping anode and its preparing process |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101781777A (en) * | 2010-03-30 | 2010-07-21 | 云南铝业股份有限公司 | Method for protecting aluminum electrolytic pre-baked anode steel grab |
| CN101643917B (en) * | 2009-09-10 | 2011-07-13 | 中国铝业股份有限公司 | Self-sintered electrolytic anode steel claw guard ring and preparation method thereof |
| CN102330115A (en) * | 2011-07-30 | 2012-01-25 | 湖南晟通科技集团有限公司 | Anode steel claw carbon protecting ring |
| CN103031574A (en) * | 2011-09-30 | 2013-04-10 | 湖南创元新材料有限公司 | Anode protection ring and preparation method thereof |
| CN103789794A (en) * | 2014-01-15 | 2014-05-14 | 王会智 | Aluminum ash positive electrode steel claw protection tile and preparation method thereof |
| CN104593824A (en) * | 2015-02-02 | 2015-05-06 | 叶光旗 | Method for producing steel claw protecting ring by using electrolytic aluminum cover material |
-
2002
- 2002-06-19 CN CN 02125001 patent/CN1396309A/en active Pending
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101643917B (en) * | 2009-09-10 | 2011-07-13 | 中国铝业股份有限公司 | Self-sintered electrolytic anode steel claw guard ring and preparation method thereof |
| CN101781777A (en) * | 2010-03-30 | 2010-07-21 | 云南铝业股份有限公司 | Method for protecting aluminum electrolytic pre-baked anode steel grab |
| CN101781777B (en) * | 2010-03-30 | 2012-07-04 | 云南铝业股份有限公司 | Method for protecting aluminum electrolytic pre-baked anode steel grab |
| CN102330115A (en) * | 2011-07-30 | 2012-01-25 | 湖南晟通科技集团有限公司 | Anode steel claw carbon protecting ring |
| CN102330115B (en) * | 2011-07-30 | 2016-01-20 | 湖南晟通科技集团有限公司 | A kind of anode steel claw carbon protecting ring |
| CN103031574A (en) * | 2011-09-30 | 2013-04-10 | 湖南创元新材料有限公司 | Anode protection ring and preparation method thereof |
| CN103789794A (en) * | 2014-01-15 | 2014-05-14 | 王会智 | Aluminum ash positive electrode steel claw protection tile and preparation method thereof |
| CN103789794B (en) * | 2014-01-15 | 2016-01-06 | 王会智 | A kind of aluminium grey matter anode steel jaw protection watt and preparation method thereof |
| CN104593824A (en) * | 2015-02-02 | 2015-05-06 | 叶光旗 | Method for producing steel claw protecting ring by using electrolytic aluminum cover material |
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| C06 | Publication | ||
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| ASS | Succession or assignment of patent right |
Owner name: QINGTONGXIA ALUMINIUM LIMITED LIABILITY COMPANY Free format text: FORMER OWNER: QINGTONGXIA ALUMINIUM INDUSTRY GOUP CO LTD Effective date: 20030618 |
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| C41 | Transfer of patent application or patent right or utility model | ||
| C53 | Correction of patent for invention or patent application | ||
| CB03 | Change of inventor or designer information |
Inventor after: Zhou Jingqi Inventor after: Song Yue Inventor after: Hao Shengxin Inventor after: Yang Fuqiang Inventor after: Zhang Chuangqi Inventor after: He Shengyu Inventor after: Wu Liancheng Inventor after: Liu Xuewei Inventor after: Li Jinguo Inventor after: Wu Weiguo Inventor after: Han Yong Inventor after: Mu Hongbing Inventor before: Liu Xuewei Inventor before: Gao Yi Inventor before: Zhang Jianxun Inventor before: Zhang Chuangqi Inventor before: Wu Liancheng Inventor before: Wu Weiguo |
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| COR | Change of bibliographic data |
Free format text: CORRECT: INVENTOR; FROM: LIU XUEWEI; GAO YI; ZHANG JIANXUN; ZHANG CHUANGQI; WU LIANCHENG; WU WEIGUOTO: ZHOU JINGQI; ZHANG CHUANGQI; HE SHENGYU; WU LIANCHENG; LIU XUEWEI; LI JINGUO; WU WEIGUO; HAN YONG; MU HONGBING; SONG; YUE HAO; SHENGXIN; YANG FUQIANG |
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| TA01 | Transfer of patent application right |
Effective date of registration: 20030618 Address after: 751603 the Ningxia Hui Autonomous Region Qingtongxia City Qingtongxia Applicant after: Qingtongxia Aluminium Co., Ltd. Address before: 751603 the Ningxia Hui Autonomous Region Qingtongxia City Qingtongxia Applicant before: Qingtongxia Aluminium Industry Goup Co., Ltd. |
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| C12 | Rejection of a patent application after its publication | ||
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