CN104862741A - Method for stopping a cell under situation of no power-off of aluminum electrolytic cell - Google Patents
Method for stopping a cell under situation of no power-off of aluminum electrolytic cell Download PDFInfo
- Publication number
- CN104862741A CN104862741A CN201510304486.2A CN201510304486A CN104862741A CN 104862741 A CN104862741 A CN 104862741A CN 201510304486 A CN201510304486 A CN 201510304486A CN 104862741 A CN104862741 A CN 104862741A
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- China
- Prior art keywords
- short
- circuit opening
- short circuit
- cell
- circuit port
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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
-
- 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
- C25C3/20—Automatic control or regulation of cells
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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 method for stopping a cell under the situation of no power-off of an aluminum electrolytic cell. The method comprises the following steps: 1), preparing a cell stopping tool; 2) replacing a short circuit port insulating rod by using an iron screw rod with an insulating sleeve; 3) viewing the horizontal bus height of the cell to be stopped; 4) taking an electrolyte and gradually reducing the cell voltage to below 1.10 V; 5) cleanly blowing accumulated dust at a short circuit port by using a high-pressure air pipe; 6) taking out an insulating plug board and remaining a transverse insulating plug board; 7) cleaning the accumulated dust at the short circuit port by using the high-pressure air pipe again; 8) measuring the pressure drop of the short circuit port; 9) taking out the transverse insulating plug board; 10) measuring the pressure drop of the short circuit port; 11) lifting anodes; 12) measuring the pressure drop of the short circuit port again; 13) picking up the tool to complete the groove stopping operation. The method disclosed by the invention is reasonable in design; all the anodes of the cell to be stopped are directly lowered, so that bottom palms of the anodes are completely immersed into molten aluminum in the cell to perform the direct short circuit operation of the short circuit port, and therefore, huge gains are brought to electrolytic aluminum production.
Description
Technical field
The invention belongs to electrolyzer field, specifically, relate to a kind of aluminium cell and not have a power failure groove method.
Background technology
Electrolyzer is after long-time running, and the breakage that cathode carbon pieces and sidepiece silica brick all will produce in various degree, therefore electrolyzer inevitably will carry out stopping groove operation.Stop groove operation to take power failure to series or use Sai Er switch circuit breaking to carry out every groove that stops to operate, series power failure is produced groove to other and is brought more negative impact, as output reduce, effect is frequent, destroy burner hearth inner mold, contaminate environment, even cause potline current to be difficult to recover the serious consequences such as ortho states, Sai Er switch circuit breaking is adopted to carry out stopping groove operation, operated as cumbersome, at substantial man power and material cost.
Summary of the invention
In order to overcome the deficiencies in the prior art, the invention provides a kind of aluminium cell not have a power failure groove method, reasonable in design, not stopping potline current, state that groove carries out power-off will be stopped without Sai Er Switch Controller under, all anodes that directly will stop groove decline, in the aluminium liquid that anode bottom is immersed in groove completely, make it to be in short-circuit condition, bath voltage at below 1.10v, and carries out the operating process of the direct short circuit of short-circuit opening, brings huge income to Aluminum Electrolysis Production.
The technical solution adopted for the present invention to solve the technical problems is:
Aluminium cell does not have a power failure groove method, it is characterized in that: step is as follows:
1), prepare to stop groove Work tool: iron screw rod, pneumatic impact wrench, fork spanner, speed wrench, volt ohm-milliammeter, change poles face shield, insulation rod, sledgehammer;
2), short circuit port insulation bar is changed with insulation thimble on iron screw rod band;
3), watching and will stop groove horizontal bus height, require to be not more than 250mm, requiring to propose bus operation to this groove as being greater than 250mm;
4), taking electrolyte, progressively reduce bath voltage to below 1.10v;
5), blow clean with the dust stratification of high-pressure air hose by short-circuit opening;
6), take out insulation insertion plate, keep lateral isolation plate;
7), with the dust stratification of high-pressure air hose to short-circuit opening place again clear up, with little bamboo chip, the foreign material in short-circuit opening gap are cleaned out;
8), measure short-circuit opening pressure drop, require to be less than 1.0v, be greater than 1.0v and require to reduce potline current;
9), lateral isolation plate is taken out, pneumatic impact wrench is used rapidly short-circuit opening to be carried out short circuit, its operation steps is: a people at the side pneumatic impact wrench of short-circuit opening by urgent for iron screw rod, two people fix iron bolt at the opposite side fork spanner of short-circuit opening, order by first and third, two, four is by urgent for iron screw rod, the like, by four short-circuit opening end of operations;
10), measure short-circuit opening pressure drop, require to be less than 15mv;
11), on lift anode, make horizontal bus be in 50mm;
12), again measure short-circuit opening pressure drop, require to be less than 20mv;
13), pack up, it is complete to stop groove operation.
Owing to have employed technique scheme, compared with prior art, the present invention is reasonable in design, not stopping potline current, state that groove carries out power-off will be stopped without Sai Er Switch Controller under, all anodes that directly will stop groove decline, in the aluminium liquid that anode bottom is immersed in groove completely, make it to be in short-circuit condition, bath voltage at below 1.10v, and carries out the operating process of the direct short circuit of short-circuit opening, brings huge income to Aluminum Electrolysis Production.
Embodiment
Aluminium cell does not have a power failure groove method, and step is as follows:
1), prepare to stop groove Work tool: iron screw rod, pneumatic impact wrench, fork spanner, speed wrench, volt ohm-milliammeter, change poles face shield, insulation rod, sledgehammer etc.
2), short circuit port insulation bar is changed with insulation thimble on iron screw rod band.
3), watching and will stop groove horizontal bus height, require to be not more than 250mm, requiring to propose bus operation to this groove as being greater than 250mm.
4), taking electrolyte, progressively reduce bath voltage to below 1.10v.
5), blow clean with the dust stratification of high-pressure air hose by short-circuit opening.
6), take out insulation insertion plate, keep lateral isolation plate.
7), with the dust stratification of high-pressure air hose to short-circuit opening place again clear up, with little bamboo chip, the foreign material in short-circuit opening gap are cleaned out.
8), measure short-circuit opening pressure drop, require to be less than 1.0v, be greater than 1.0v and require to reduce potline current.
9), lateral isolation plate is taken out, pneumatic impact wrench is used rapidly short-circuit opening to be carried out short circuit, its operation steps is: a people at the side pneumatic impact wrench of short-circuit opening by urgent for iron screw rod, two people fix iron bolt at the opposite side fork spanner of short-circuit opening, order by first and third, two, four is by urgent for iron screw rod, the like, by four short-circuit opening end of operations.
10), measure short-circuit opening pressure drop, require to be less than 15mv.
11), on lift anode, make horizontal bus be in 50mm.
12), again measure short-circuit opening pressure drop, require to be less than 20mv.
13), pack up, it is complete to stop groove operation.
The present invention is reasonable in design, not stopping potline current, state that groove carries out power-off will be stopped without Sai Er Switch Controller under, all anodes that directly will stop groove decline, in the aluminium liquid that anode bottom is immersed in groove completely, make it to be in short-circuit condition, bath voltage at below 1.10v, and carries out the operating process of the direct short circuit of short-circuit opening, brings huge income to Aluminum Electrolysis Production.
The present invention is not limited to above-mentioned preferred implementation, and anyone should learn the structural changes made under enlightenment of the present invention, and every have identical or akin technical scheme with the present invention, all belongs to protection scope of the present invention.
Claims (1)
1. aluminium cell does not have a power failure groove method, it is characterized in that: step is as follows:
1), prepare to stop groove Work tool;
2), short circuit port insulation bar is changed with insulation thimble on iron screw rod band;
3), watching and will stop groove horizontal bus height, require to be not more than 250mm, requiring to propose bus operation to this groove as being greater than 250mm;
4), taking electrolyte, progressively reduce bath voltage to below 1.10v;
5), blow clean with the dust stratification of high-pressure air hose by short-circuit opening;
6), take out insulation insertion plate, keep lateral isolation plate;
7), with the dust stratification of high-pressure air hose to short-circuit opening place again clear up, with little bamboo chip, the foreign material in short-circuit opening gap are cleaned out;
8), measure short-circuit opening pressure drop, require to be less than 1.0v, be greater than 1.0v and require to reduce potline current;
9), lateral isolation plate is taken out, pneumatic impact wrench is used rapidly short-circuit opening to be carried out short circuit, its operation steps is: a people at the side pneumatic impact wrench of short-circuit opening by urgent for iron screw rod, two people fix iron bolt at the opposite side fork spanner of short-circuit opening, order by first and third, two, four is by urgent for iron screw rod, the like, by four short-circuit opening end of operations;
10), measure short-circuit opening pressure drop, require to be less than 15mv;
11), on lift anode, make horizontal bus be in 50mm;
12), again measure short-circuit opening pressure drop, require to be less than 20mv;
13), pack up, it is complete to stop groove operation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510304486.2A CN104862741A (en) | 2015-06-05 | 2015-06-05 | Method for stopping a cell under situation of no power-off of aluminum electrolytic cell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510304486.2A CN104862741A (en) | 2015-06-05 | 2015-06-05 | Method for stopping a cell under situation of no power-off of aluminum electrolytic cell |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104862741A true CN104862741A (en) | 2015-08-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510304486.2A Pending CN104862741A (en) | 2015-06-05 | 2015-06-05 | Method for stopping a cell under situation of no power-off of aluminum electrolytic cell |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104862741A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107400902A (en) * | 2016-05-18 | 2017-11-28 | 王晓宇 | Engineering method is increased in jacking to aluminum electrolysis cell upper part structure online |
| CN109055987A (en) * | 2018-10-24 | 2018-12-21 | 中国铝业股份有限公司 | A kind of method that aluminium cell seat pocket stops slot |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101328595A (en) * | 2008-07-22 | 2008-12-24 | 山西华圣铝业有限公司 | Productive cell shutting method of aluminum cell |
| CN101392389A (en) * | 2008-11-06 | 2009-03-25 | 贵阳铝镁设计研究院 | Method and device for turning on or off bath without power failure of electrobath system |
| CN104514029A (en) * | 2013-09-30 | 2015-04-15 | 林州市林丰铝电有限责任公司 | Large-scale electrolytic tank outage-free shutting method |
-
2015
- 2015-06-05 CN CN201510304486.2A patent/CN104862741A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101328595A (en) * | 2008-07-22 | 2008-12-24 | 山西华圣铝业有限公司 | Productive cell shutting method of aluminum cell |
| CN101392389A (en) * | 2008-11-06 | 2009-03-25 | 贵阳铝镁设计研究院 | Method and device for turning on or off bath without power failure of electrobath system |
| CN104514029A (en) * | 2013-09-30 | 2015-04-15 | 林州市林丰铝电有限责任公司 | Large-scale electrolytic tank outage-free shutting method |
Non-Patent Citations (3)
| Title |
|---|
| 康炜: "240KA预焙铝电解槽不停电停槽操作实践", 《科技创新与应用》 * |
| 杨涛: "铝电解系列全电流开/停槽技术(上)", 《轻金属》 * |
| 高文义等: "大型预焙铝电解槽开停槽不停电操作的生产实践", 《中国有色冶金》 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107400902A (en) * | 2016-05-18 | 2017-11-28 | 王晓宇 | Engineering method is increased in jacking to aluminum electrolysis cell upper part structure online |
| CN109055987A (en) * | 2018-10-24 | 2018-12-21 | 中国铝业股份有限公司 | A kind of method that aluminium cell seat pocket stops slot |
| CN109055987B (en) * | 2018-10-24 | 2020-10-27 | 中国铝业股份有限公司 | Method for sitting and stopping aluminum electrolytic cell |
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| RJ01 | Rejection of invention patent application after publication | ||
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Application publication date: 20150826 |