CN101270483B - Mending and ramming method for after reigniting electrolytic tank and clearing tank - Google Patents
Mending and ramming method for after reigniting electrolytic tank and clearing tank Download PDFInfo
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- CN101270483B CN101270483B CN2007100872414A CN200710087241A CN101270483B CN 101270483 B CN101270483 B CN 101270483B CN 2007100872414 A CN2007100872414 A CN 2007100872414A CN 200710087241 A CN200710087241 A CN 200710087241A CN 101270483 B CN101270483 B CN 101270483B
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- ramming
- slit
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Abstract
The invention relates to a repairing and ramming method after secondarily starting an electrobath which is characterized in that the process of the method includes the following steps: a, carrying out eliminating of two to three layers on the artificial ledges with the phenomena of cracking, slip crack, spalling and aluminum leakage and carrying out ramming again; b, digging a deep groove of 10 to 20cm between carbon blocks to the gaps between the cathode carbon blocks with the phenomena of cracking and aluminum leakage, and using paste to carry out ramming; c, cleaning the places of slip crack and fall-block of the cathode carbon blocks and using paste to carry out padding and ramming; d, beating away a groove with the width of 1 to 2cm from the gap location on the body of the cathode carbon blocks and then using paste to carry out pad and repair. The method of the invention effectively solves the problems of damages of the cathode carbon blocks, the slide carbon blocks and the artificial ledges after secondarily starting the electrobath and effectively prevents aluminum liquid or electrolyte to seep downwards along the damaged parts so as to lead the electrobath to be successfully started.
Description
Technical field
Repairing behind the restarting electrolytic tank and clearing tank with prick solid method, relate to a kind of maintaining method of aluminium cell, particularly at the repairing of cathode block, sidewall carbon brick, the artificial damaged different situations of stretching one's legs behind the 300KA restarting electrolytic tank and clearing tank with prick solid method.
Background technology
In aluminium electricity production process, when carrying out the electrolyzer light maintenance, after electrolyzer mulch, crust, anode and aluminium block were gone out clearly, electrolyzer sidepiece and cathode portion breakage were more serious, mainly show: the artificial fracture of stretching one's legs, aliquation, aluminising are serious; Sidewall carbon brick fracture, by the etch oxidation, fall piece; Cathode block weathering, fracture, aliquation, fall piece; Cathode block break joint cracking, aluminising etc.The smooth startup of electrolyzer in the serious threat that exists of the problems referred to above, if without repairing, very likely in electrolyzer energising start-up course, liquid aluminium or ionogen be along oozing under the damaged position, thereby cause electrolyzer generation bakie.
Summary of the invention
The objective of the invention is deficiency at above-mentioned prior art existence, cathode block behind a kind of effective solution restarting electrolytic tank and clearing tank, sidewall carbon brick, the artificial damaged problem of stretching one's legs are provided, effectively prevent in the electrolyzer energising start-up course, liquid aluminium or ionogen be along oozing under the damaged position, make behind the restarting electrolytic tank and clearing tank of smooth startup of electrolyzer repairing with prick solid method.
The objective of the invention is to be achieved through the following technical solutions.
Repairing behind the restarting electrolytic tank and clearing tank and bundle solid method is characterized in that its process may further comprise the steps:
A. crack, aliquation will occur, peel off, artificial the stretching one's legs of aluminising phenomenon carry out two to trilaminar removing, pricks solid again;
The cathode block break joint that cracking, aluminising phenomenon b. will occur reaches the place of 1/3 carbon tile height at carbon interblock seam width more than or equal to the 1mm and the degree of depth, excavates the 10cm-20cm deep trouth at the carbon interblock, pricks solid with thickener;
C. clear up the cathode block aliquation, fall the place of piece, with thickener fill up prick solid;
D. place, the slit on the cathode block body chisels the wide groove of 1-2cm from the slit, fills up with thickener;
E. be lower than 1/3 crannied lateral mass for the lateral mass corroding thickness, it is wide that the slit is extended to 1-2cm with grinding wheel, fills repairing with thickener then.
Method of the present invention at the difference of the cathode block of electrolyzer, sidewall carbon brick, the artificial damaged situation of stretching one's legs, has been formulated and different has been repaiied groove, mended the groove scheme, and the extent of damage of electrolyzer is better remedied.Effectively cathode block, sidewall carbon brick, the artificial damaged problem of stretching one's legs behind the solution restarting electrolytic tank and clearing tank prevent that effectively liquid aluminium or ionogen make the smooth startup of electrolyzer along oozing under the damaged position in the electrolyzer energising start-up course.
Embodiment
Repairing behind the restarting electrolytic tank and clearing tank with prick solid method, its process comprises: a. at artificial stretch one's legs crack, aliquation occur, peel off, the phenomenon of aluminising, artificial stretching one's legs disposed two to three layers and prick solid again; B. at the phenomenon of cathode block break joint cracking, aluminising, the thickener of carbon interblock is excavated 10cm, the maximum 20cm in aluminising position prick solid again; C. anticathode carbon piece aliquation, fall the place of piece, through the cleaning back with thickener fill up prick solid; D. all visible gap of anticathode carbon block body, it is wide to require to chisel from the slit 1-2cm left and right sides, fills up with thickener; E. for crannied lateral mass, the slit is enlarged, fill repairing with thickener then, recommended replacement when the lateral mass corroding thickness reaches 1/3 thickness with grinding wheel.Method of the present invention is used for electrolyzer and carries out the light maintenance process, and sidepiece silicon carbide bulk, cathode block do not change in principle, and Special Circumstances are on-the-spot to be determined.
Embodiment 1
When electrolyzer carried out light maintenance, there was more serious breakage in cleaning back electric tank cathode system, and the electrolyzer of crack, peeling phenomenon is appearred in artificial stretching one's legs, and artificial stretching one's legs disposed two layers, stuck with paste through pricking again behind roughened surface, heating, the extension oil; The groove thorax has the position of aluminising to dig the groove of 10cm, sticks with paste through pricking again behind roughened surface, heating, the extension oil; Reach the place of 1/3 carbon tile height at cathode block break joint width more than or equal to the 1mm and the degree of depth, excavation 10cm groove is stuck with paste through pricking again behind roughened surface, heating, the extension oil; Dig out and down dig again about 10cm in the place that cathode block break joint carbon cap comes off, stick with paste through pricking again behind roughened surface, heating, the extension oil; All visible gap of cathode block body or be subjected to layer, the seam of chemical erosion to require to chisel the wide groove of 1-2cm from the slit, fill up with thickener, place, crack width adopts thickener to fill up greater than the direct cleaning back of 2mm, for crannied lateral mass, it is wide that requirement is extended to 1-2cm with grinding wheel with the slit, the thickener made from silica cement or coal tar configuration carbon dust and magnesia fills then, will guarantee during construction that the slit smears real, floating.The lateral mass corroding thickness reaches 1/3 thickness place and changes.
Embodiment 2
When electrolyzer carried out light maintenance, there was more serious breakage in cleaning back electric tank cathode system, and the electrolyzer of crack, peeling phenomenon is appearred in artificial stretching one's legs, and artificial stretching one's legs disposed two layers, stuck with paste through pricking again behind roughened surface, heating, the extension oil; The groove thorax has the position of aluminising to dig the groove of 20cm, sticks with paste through pricking again behind roughened surface, heating, the extension oil; Reach the place of 1/3 carbon tile height at cathode block break joint width more than or equal to the 1mm and the degree of depth, excavation 10cm groove is stuck with paste through pricking again behind roughened surface, heating, the extension oil; Dig out and down dig again about 10cm in the place that cathode block break joint carbon cap comes off, stick with paste through pricking again behind roughened surface, heating, the extension oil; All visible gap of cathode block body or be subjected to layer, the seam of chemical erosion to require to chisel the wide groove of 1-2cm from the slit, fill up with thickener, place, crack width adopts thickener to fill up greater than the direct cleaning back of 2mm, for crannied lateral mass, it is wide that requirement is extended to 1-2cm with grinding wheel with the slit, the thickener made from silica cement or coal tar configuration carbon dust and magnesia fills then, will guarantee during construction that the slit smears real, floating.The lateral mass corroding thickness reaches 1/3 thickness place and changes.
Claims (1)
1. repairing behind the restarting electrolytic tank and clearing tank and bundle solid method is characterized in that its process may further comprise the steps:
A. crack, aliquation will occur, peel off, artificial the stretching one's legs of aluminising phenomenon carry out two to trilaminar removing, pricks solid again;
The cathode block break joint that cracking, aluminising phenomenon b. will occur reaches the place of 1/3 carbon tile height at carbon interblock seam width more than or equal to the 1mm and the degree of depth, excavates the 10cm-20cm deep trouth at the carbon interblock, pricks solid with thickener;
C. clear up the cathode block aliquation, fall the place of piece, with thickener fill up prick solid;
D. place, the slit on the cathode block body chisels the wide groove of 1-2cm from the slit, fills up with thickener;
E. be lower than 1/3 crannied lateral mass for the lateral mass corroding thickness, it is wide that the slit is extended to 1-2cm with grinding wheel, fills repairing with thickener then.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007100872414A CN101270483B (en) | 2007-03-22 | 2007-03-22 | Mending and ramming method for after reigniting electrolytic tank and clearing tank |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007100872414A CN101270483B (en) | 2007-03-22 | 2007-03-22 | Mending and ramming method for after reigniting electrolytic tank and clearing tank |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101270483A CN101270483A (en) | 2008-09-24 |
| CN101270483B true CN101270483B (en) | 2011-04-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2007100872414A Expired - Fee Related CN101270483B (en) | 2007-03-22 | 2007-03-22 | Mending and ramming method for after reigniting electrolytic tank and clearing tank |
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| CN (1) | CN101270483B (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102433571B (en) * | 2010-09-29 | 2014-05-07 | 中国铝业股份有限公司 | Quick minor repair method for aluminum cell |
| CN104514010B (en) * | 2013-09-30 | 2018-03-16 | 林州市林丰铝电有限责任公司 | A kind of large scale electrolytic cell restarting is locally stretched one's legs the method for light maintenance |
| CN104451774A (en) * | 2014-12-29 | 2015-03-25 | 云南铝业股份有限公司 | Zero allowance cell shutting polymorph high roasting method |
| CN105624731B (en) * | 2016-03-14 | 2018-03-16 | 中冶天工集团有限公司 | Combined tamping construction method for aluminum cell lining paste |
| CN107236970B (en) * | 2017-05-31 | 2019-04-26 | 山东南山铝业股份有限公司 | The method for repairing and mending of electrolytic cell sideways furnace wall |
| CN107475747B (en) * | 2017-07-28 | 2018-10-09 | 东营方圆有色金属有限公司 | A kind of method of the multiple new cupric electrolysis conductive rod of low cost |
Citations (6)
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|---|---|---|---|---|
| RU2123545C1 (en) * | 1997-07-16 | 1998-12-20 | Открытое акционерное общество "Братский алюминиевый завод" | Process of hot repair of hearth of aluminium electrolyzer |
| RU2124584C1 (en) * | 1997-06-16 | 1999-01-10 | Открытое акционерное общество "Братский алюминиевый завод" | Process of repair of lining and putting into operation of aluminum electrolyzer |
| RU2129170C1 (en) * | 1997-06-04 | 1999-04-20 | Акционерное общество открытого типа "Братский алюминиевый завод" | Process of local repair of side lining of aluminum electrolyzer |
| CN1696352A (en) * | 2004-05-13 | 2005-11-16 | 河南豫港龙泉铝业有限公司 | Method for repairing liner on side of electrolytic tank without stopping the tank |
| RU2270886C2 (en) * | 2003-12-25 | 2006-02-27 | Открытое акционерное общество "Сибирский научно-исследовательский, конструкторский и проектный институт алюминиевой и электродной промышленности" (ОАО "СибВАМИ") | Method of performing hot repair of local failures of carbon hearth of aluminum electrolyzer cathode unit |
| CN1900373A (en) * | 2006-05-24 | 2007-01-24 | 中国铝业股份有限公司 | Small repairing method for aluminum electrolytic bath cathode inner lining damage |
-
2007
- 2007-03-22 CN CN2007100872414A patent/CN101270483B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2129170C1 (en) * | 1997-06-04 | 1999-04-20 | Акционерное общество открытого типа "Братский алюминиевый завод" | Process of local repair of side lining of aluminum electrolyzer |
| RU2124584C1 (en) * | 1997-06-16 | 1999-01-10 | Открытое акционерное общество "Братский алюминиевый завод" | Process of repair of lining and putting into operation of aluminum electrolyzer |
| RU2123545C1 (en) * | 1997-07-16 | 1998-12-20 | Открытое акционерное общество "Братский алюминиевый завод" | Process of hot repair of hearth of aluminium electrolyzer |
| RU2270886C2 (en) * | 2003-12-25 | 2006-02-27 | Открытое акционерное общество "Сибирский научно-исследовательский, конструкторский и проектный институт алюминиевой и электродной промышленности" (ОАО "СибВАМИ") | Method of performing hot repair of local failures of carbon hearth of aluminum electrolyzer cathode unit |
| CN1696352A (en) * | 2004-05-13 | 2005-11-16 | 河南豫港龙泉铝业有限公司 | Method for repairing liner on side of electrolytic tank without stopping the tank |
| CN1900373A (en) * | 2006-05-24 | 2007-01-24 | 中国铝业股份有限公司 | Small repairing method for aluminum electrolytic bath cathode inner lining damage |
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| Publication number | Publication date |
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| CN101270483A (en) | 2008-09-24 |
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