CN104514010A - Minor overhaul method of large-scale electrolytic tanks' local extension legs for second start-up - Google Patents
Minor overhaul method of large-scale electrolytic tanks' local extension legs for second start-up Download PDFInfo
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- CN104514010A CN104514010A CN201310457734.8A CN201310457734A CN104514010A CN 104514010 A CN104514010 A CN 104514010A CN 201310457734 A CN201310457734 A CN 201310457734A CN 104514010 A CN104514010 A CN 104514010A
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- legs
- electrolyzer
- electrolytic tanks
- extension legs
- periphery
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- 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
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- 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)
Abstract
The invention discloses a minor overhaul method of large-scale electrolytic tanks' local extension legs for second start-up and specifically relates to a method for minor overhauling of electrolytic tanks' local extension legs during second start-up of large-scale electrolytic tanks. The technical problem to be solved is that costs are high, start-up time of equipment is long, working time is wasted and work efficiency is low during overhauling of electrolytic tanks at present. The method comprises the following steps: 1, electrolytic tanks which shut down are cleaned; 2, after cleaning, badly weathered silicon carbide side carbon blocks on extension legs on the periphery of the electrolytic tanks are replaced; 3, preheated coal tar is sprayed on the extension legs on the periphery of the electrolytic tanks; and 4, heated peripheral paste is used for minor overhaul of the extension legs which are sprayed with coal tar, so as to meet the start-up requirement. By the above method, overhauling cost is minimized, start-up risk is reduced, and start-up time is shortened, and work efficiency is raised.
Description
Technical field
The present invention relates to a kind of electrolyzer, when being specifically related to a kind of large scale electrolytic cell restarting, stretched one's legs in electrolyzer local and carry out the method for light maintenance.
Background technology
Electrolyzer is in normal productive process, because certain cause specific causes, electrolyzer is improper stops groove, current electrolysis groove is improper stop groove after equipment is overhauled, meet electrolyzer and again start when requiring and carry out restarting electrolyzer, stretching one's legs of electrolyzer is not repaired; To the finishing of stretching one's legs of electrolyzer be all when electrolyzer needs overhaul to electrolyzer stop groove finishing, refractory brick, insulating brick, cathode carbon pieces etc. in electrolyzer are needed all again to lay during overhaul, every platform electrolytic cell overhaul expense about needs about 1,400,000, costly, need after overhaul to restart equipment, start time is longer, and each overhaul waste working hour, cause working efficiency low.
Summary of the invention
The technical problem to be solved in the present invention be when at present electrolyzer being carried out large repairs costly, the device start time is longer, the waste working hour, working efficiency is low, there is provided a kind of simple to operate, reducing overhaul number of times, reduce overhaul cost, stretches one's legs the method for light maintenance in the large scale electrolytic cell restarting local of reducing the number of starts of electrolyzer.
For achieving the above object, the present invention adopts following technical proposals: stretching one's legs the method for light maintenance in a kind of large scale electrolytic cell restarting local, comprises the following steps: 1, clear up stopping the electrolyzer after groove; 2, clean out the rear silicon carbide side wall carbon block serious to the upper weathering of stretching one's legs of electrolyzer periphery to change; 3, on the stretching one's legs of electrolyzer periphery, send preheated coal tar forth, 4, to stick with paste with the periphery heated and carried out local light maintenance to sending stretching one's legs of coal tar forth, thus reach and meet startup requirement.
Described the cleaning of electrolyzer is comprised to the cleaning ionogen in stopped groove, bottom land being stayed to aluminium, the cleaning of upper silicon carbide of stretching one's legs to furnace bottom cathode carbon pieces and groove surrounding, clears up the secondary of weak part of stretching one's legs.
Adopt the present invention after aforesaid method, meet electrolyzer again start require time, according to stopped groove practical situation, stretched one's legs and carry out light maintenance in the stretch one's legs local of weak part of electrolyzer, reduce overhaul cost, reduce startup risk, shorten start time, improve working efficiency.
Accompanying drawing explanation
Fig. 1 is the structural representation of electrolyzer.
Fig. 2 is that electrolyzer is stretched one's legs the local structure schematic diagram before light maintenance.
Fig. 3 is that electrolyzer is stretched one's legs the local structure schematic diagram after light maintenance.
Embodiment
As shown in Figure 1 to Figure 3, the present invention includes following steps: 1, clear up stopping the electrolyzer after groove 1; 2, clean out the rear silicon carbide side wall carbon block serious to the weathering on 2 of stretching one's legs of electrolyzer periphery to change; 3, on the stretching one's legs of electrolyzer periphery, send preheated coal tar forth, 4, to stick with paste with the periphery heated and carried out local light maintenance to sending stretching one's legs of coal tar forth, thus reach and meet startup requirement.
Described the cleaning of electrolyzer is comprised to the cleaning ionogen in stopped groove, bottom land 3 being stayed to aluminium carbon cathode blocks, the cleaning of upper silicon carbide of stretching one's legs to furnace bottom cathode carbon pieces and groove surrounding, clears up the secondary of weak part of stretching one's legs.
Electrolyzer is in normal productive process, when certain cause specific causes that electrolyzer is improper stops groove, equipment is overhauled, meet electrolyzer again to start when requiring and carry out light maintenance to electrolyzer, again restarting is carried out to electrolyzer after light maintenance terminates, reduce overhaul number of times, reduce startup risk, shorten start time, improve working efficiency.
Claims (2)
1. stretch one's legs the method for light maintenance in large scale electrolytic cell restarting local, it is characterized in that: comprise the following steps: 1, clear up stopping the electrolyzer after groove (1); 2, clean out the rear silicon carbide side wall carbon block serious to the upper weathering of stretching one's legs of electrolyzer periphery to change; 3, on stretch one's legs (2) of electrolyzer periphery, send preheated coal tar forth, 4, to stick with paste with the periphery that heats and carried out local light maintenance to sending stretching one's legs of coal tar forth, thus reach and meet startup requirement.
2. stretch one's legs the method for light maintenance in large scale electrolytic cell restarting according to claim 1 local, it is characterized in that: described the cleaning of electrolyzer is comprised to the cleaning ionogen in stopped groove, bottom land (3) being stayed to aluminium, furnace bottom cathode carbon pieces and groove surrounding to be stretched one's legs the cleaning of upper silicon carbide, the secondary of weak part of stretching one's legs is cleared up.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310457734.8A CN104514010B (en) | 2013-09-30 | 2013-09-30 | A kind of large scale electrolytic cell restarting is locally stretched one's legs the method for light maintenance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310457734.8A CN104514010B (en) | 2013-09-30 | 2013-09-30 | A kind of large scale electrolytic cell restarting is locally stretched one's legs the method for light maintenance |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104514010A true CN104514010A (en) | 2015-04-15 |
| CN104514010B CN104514010B (en) | 2018-03-16 |
Family
ID=52789876
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310457734.8A Expired - Fee Related CN104514010B (en) | 2013-09-30 | 2013-09-30 | A kind of large scale electrolytic cell restarting is locally stretched one's legs the method for light maintenance |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104514010B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3969213A (en) * | 1973-10-26 | 1976-07-13 | Nippon Light Metal Company Limited | Aluminum electrolytic cells |
| 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 |
| CN101270483A (en) * | 2007-03-22 | 2008-09-24 | 山西华圣铝业有限公司 | Mending and ramming method for after reigniting electrolytic tank and clearing tank |
| CN102433571A (en) * | 2010-09-29 | 2012-05-02 | 中国铝业股份有限公司 | Quick minor repair method for aluminum cell |
-
2013
- 2013-09-30 CN CN201310457734.8A patent/CN104514010B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3969213A (en) * | 1973-10-26 | 1976-07-13 | Nippon Light Metal Company Limited | Aluminum electrolytic cells |
| 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 |
| CN101270483A (en) * | 2007-03-22 | 2008-09-24 | 山西华圣铝业有限公司 | Mending and ramming method for after reigniting electrolytic tank and clearing tank |
| CN102433571A (en) * | 2010-09-29 | 2012-05-02 | 中国铝业股份有限公司 | Quick minor repair method for aluminum cell |
Non-Patent Citations (3)
| Title |
|---|
| 姚惠雄: "浅谈电解槽二次启动前的清炉及维修", 《2007中国国际铝冶金技术论坛论文集》 * |
| 梁学民 等主编: "《现代铝电解生产技术与管理》", 31 December 2011, 中南大学出版社 * |
| 王平 等: "电解槽阴极内衬小修技术探讨", 《2007中国国际铝冶金技术论坛论文集》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104514010B (en) | 2018-03-16 |
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Legal Events
| Date | Code | Title | Description |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information | ||
| CB02 | Change of applicant information |
Address after: Anyang City, Henan province 456561 Luban Linzhou City Canal Economic and Technological Development Zone on the north side of East Avenue Applicant after: LINZHOU LINFENG ALUMINUM AND ELECTRICITY Co.,Ltd. Address before: Anyang City, Henan Province, Linzhou City, 456571 cross Shuifeng Bao Industrial Zone Applicant before: LINZHOU LINFENG ALUMINUM AND ELECTRICITY Co.,Ltd. |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180316 Termination date: 20210930 |