CN104674306A - Measuring method of anode iron carbon pressure drop - Google Patents
Measuring method of anode iron carbon pressure drop Download PDFInfo
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- CN104674306A CN104674306A CN201510106107.9A CN201510106107A CN104674306A CN 104674306 A CN104674306 A CN 104674306A CN 201510106107 A CN201510106107 A CN 201510106107A CN 104674306 A CN104674306 A CN 104674306A
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- drill rod
- point
- charcoal
- charcoal bowl
- bowl
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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
- C25C3/20—Automatic control or regulation of cells
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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
- C25C3/08—Cell construction, e.g. bottoms, walls, cathodes
- C25C3/12—Anodes
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
- G01R19/0084—Arrangements for measuring currents or voltages or for indicating presence or sign thereof measuring voltage only
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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)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Electrolytic Production Of Metals (AREA)
Abstract
The invention discloses a measuring method of anode iron carbon pressure drop. The measuring method comprises the following steps: (1) preparing steel chisels: using two first steel chisels and two second steel chisels, rubbing down the two end faces of each of the first steel chisels, and polishing the outer cylindrical surfaces at the both ends, bending the two second steel chisels for 90 degrees at the positions of 7/10 to 9-10 of the total length in the length direction, and rubbing down the two end faces of each of the second steel chisels; (2) determining measuring points which comprise four points of A1, A2, B1 and B2; (3) punching: respectively punching downwards at the points of A1 and A2, and enabling the pore diameters to be 6-9 mm, and the pore depths to be 90-110 mm both; (4) mounting the second steel chisels: respectively welding the ends with the bended longer sections of the two second steel chisels with the points of B1 and B2; (5) measuring the pressure drop values; (6) calculating the average pressure drop. Compared with the correlation technology, as the measuring positions are fixed, and the steel chisels are tightly combined with the carbon block, the measured data are stable and accurate, and the comparability is good.
Description
[technical field]
The invention belongs to field of aluminum electrolysis, particularly relate to the method that aluminium cell anode iron carbon pressure under the current condition such as a kind of Measurement and analysis falls.
[background technology]
Prebaked anode is the important component part in Aluminium Electrolysis, is electrolyzer " heart ".Whether rationally the quality of anode carbon block inner quality and the design of every technical parameter, all directly affect electrolytic aluminium production process, each economic target and production cost.It is one of most important parameter of prebaked anode that iron carbon pressure falls.Affect the principal element that iron carbon pressure falls: the degree of cleaning on steel pawl surface, phosphorus pig iron formula, casting quality and iron carbon contact area.In correlation technique, the method that measurement iron carbon pressure falls comprises: in the boring of anode carbon block end face optional position, stamp drill rod, during measurement, pen meter of universal meter one contacts with drill rod on charcoal block, and one contacts with steel pawl, reading of data.The defect of the method is drill rod on every block charcoal block, steel pawl point position disunity, and charcoal block contacts not tight with drill rod, drill rod does not have sfgd., easily fuses, and affects accuracy and the measuring period of take off data;
Therefore, be necessary that the measuring method providing a kind of new anode iron carbon pressure to fall solves the problems of the technologies described above in fact.
[summary of the invention]
Technical problem to be solved by this invention is to provide the measuring method that a kind of accuracy of measurement is high, take off data comparability is strong anode iron carbon pressure falls.
The measuring method that a kind of anode iron of the present invention carbon pressure falls, one group of anode in electrolyzer to be measured has two pieces of charcoal blocks, is respectively left charcoal block, right charcoal block; Left charcoal block is linearly respectively arranged with the first left charcoal bowl, the second left charcoal bowl, the 3rd left charcoal bowl and the 4th left charcoal bowl by electrolyzer externally to inside; Right charcoal block is respectively arranged with first right charcoal bowl, second right charcoal bowl, three right charcoal bowl and four right charcoal bowl externally to inside along straight line by electrolyzer; Steel pawl in electrolyzer to be measured comprises crossbeam and is welded on eight claws below described crossbeam, and the cross section of described crossbeam is rectangle, and described claw is right cylinder, the upper surface of described claw and described beam welding; Wherein, the measuring method that described anode iron carbon pressure falls comprises the steps:
(1) prepare drill rod, get four drill rods, wherein two is the first drill rod, and another two is the grinding two end surfaces of the second drill rod, the first drill rod, two ends external cylindrical surface polishing; One 90 degree of bendings of overall length 7/10 ~ 9/10 are being accounted for along its length, the second drill rod grinding two end surfaces from one end wherein of the second drill rod to the other end;
(2) location survey point, measuring point comprises A1, A2, B1, B2 4 point;
A1 point is positioned at distance the first left charcoal bowl and the central point of the second left charcoal bowl and is 90 ~ 110mm and away from the position at Zuo Tankuai center;
A2 point is positioned at distance the first right charcoal bowl and the central point of the second right charcoal bowl and is 90 ~ 110mm and away from the position at You Tankuai center;
B1 point is positioned on the upper surface of the described claw of contiguous described A1 point;
B2 point is positioned on the upper surface of the described claw of contiguous described A2 point;
(3) punch, the first drill rod be installed,
From A1, A2 point respectively to lower punching, aperture is 6 ~ 9mm, and hole depth is 90 ~ 110mm, is squeezed into one end of the external cylindrical surface region polishing of 0 ~ 110mm of two first drill rods in two holes; Wrap up in the bottom of two first drill rods with aluminum oxide mud drum again, parcel scope is around first drill rod of charcoal block upper surface upwards 0 ~ 110mm;
(4) the second drill rod is installed
By one end of the long section after two second drill rod bendings respectively with B1, B2 spot weld;
(5) pressure measurement is fallen
Volt ohm-milliammeter is adjusted to direct current mV shelves, is contacted respectively by two of volt ohm-milliammeter test pencils with the free end of first drill rod of A1, second drill rod at B1 place, reading volt ohm-milliammeter reading is w;
Volt ohm-milliammeter is adjusted to direct current mV shelves, is contacted respectively by two of volt ohm-milliammeter test pencils with the free end of first drill rod of A2, second drill rod at B2 place, reading volt ohm-milliammeter reading is q;
(6) average pressure drop is calculated
W and the q value upper pacing obtained is averaging, and namely obtains final anode iron carbon pressure depreciation.
Preferably,
In step (1), the diameter of described first drill rod is 10mm, and length is 400mm, apart from the external cylindrical surface region polishing of one end 0 ~ 100mm, apart from the external cylindrical surface region polishing of the other end 0 ~ 150mm;
The diameter 10mm of described second drill rod, length 200mm, the second drill rod account for the bending of 90 degree, overall length 7/10 ~ 9/10 place at length direction;
In step (2), A1 point is positioned at distance the first left charcoal bowl and the central point of the second left charcoal bowl and is 100mm and away from the position at Zuo Tankuai center; A2 point is positioned at distance the first right charcoal bowl and the central point of the second right charcoal bowl and is 100mm and away from the position at You Tankuai center;
In step (3), from A1, A2 point respectively to lower punching, aperture is 8mm, and hole depth is 100mm, is squeezed into one end of the external cylindrical surface region polishing of 0 ~ 100mm of two first drill rods in two holes; Wrap up in the bottom of two first drill rods with aluminum oxide mud drum again, parcel scope is around first drill rod of charcoal block upper surface upwards 0 ~ 100mm.
Compared with correlation technique, owing to securing measuring position, and drill rod and charcoal agllutination close closely, and take off data is accurately stable, and comparability is strong.
[accompanying drawing explanation]
Fig. 1 is the measuring state schematic diagram of the measuring method that a kind of anode iron of the present invention carbon pressure falls;
Fig. 2 is that E in Fig. 1 is to partial view;
Fig. 3 is that F in Fig. 1 is to partial view.
[embodiment]
Below in conjunction with drawings and embodiments, the invention will be further described.
See Fig. 1 ~ 3, the measuring method that a kind of anode iron carbon pressure falls, one group of anode in electrolyzer to be measured has two pieces of charcoal blocks, is respectively left charcoal block 1, right charcoal block 2.Left charcoal block 1 is linearly respectively arranged with the left charcoal bowl 12 of the first left charcoal bowl 11, second, the 3rd left charcoal bowl 13 and the 4th left charcoal bowl 14 by electrolyzer externally to inside.Right charcoal block 2 is respectively arranged with first right charcoal bowl, second right charcoal bowl, three right charcoal bowl and four right charcoal bowl externally to inside along straight line by electrolyzer.Eight claws 32 that steel pawl 3 in electrolyzer to be measured comprises crossbeam 31 and is welded on below crossbeam 31, the cross section of crossbeam 31 is rectangle, and claw 32 is right cylinder, and the upper surface of claw 32 is welded with crossbeam 31
The measuring method that anode iron carbon pressure falls comprises the steps:
(1) prepare drill rod, get four drill rods, wherein two is the first drill rod 4, and another two is the grinding two end surfaces of the second drill rod 5, first drill rod 4, two ends external cylindrical surface polishing; Overall length 180mm 90 degree of bendings are being accounted for along its length, the second drill rod 5 grinding two end surfaces from one end wherein of the second drill rod 5 to the other end; (2) location survey point, measuring point comprises A1, A2, B1, B2 4 point.
A1 point is positioned at distance the first left charcoal bowl 11 and the central point of the second left charcoal bowl 12 and is 100mm and away from the position at left charcoal block 1 center.
A2 point is positioned at distance the first right charcoal bowl and the central point of the second right charcoal bowl and is 100mm and away from the position at right charcoal block 2 center.
B1 point is positioned on the upper surface of the claw 32 of contiguous A1 point.
B2 point is positioned on the upper surface of the claw 32 of contiguous A2 point.
(3) punch, the first drill rod 4 be installed,
From A1, A2 point respectively to lower punching, aperture is 8mm, and hole depth is 100mm, is squeezed in two holes one end of the external cylindrical surface region polishing of 0 ~ 100mm of two first drill rods 4.Wrap up in the bottom of two first drill rods 4 with aluminum oxide mud drum again, parcel scope be charcoal block upper surface upwards 0 ~ 100mm the first drill rod 4 around.
(4) the second drill rod 5 is installed
By one end of the long section after two second drill rod 5 bendings respectively with B1, B2 spot weld.
(5) pressure measurement is fallen
Volt ohm-milliammeter 6 is adjusted to direct current mV shelves, is contacted respectively by two of volt ohm-milliammeter 6 test pencils with the free end of first drill rod 4 of A1, second drill rod 5 at B1 place, reading volt ohm-milliammeter 6 reading is w.
Volt ohm-milliammeter 6 is adjusted to direct current mV shelves, is contacted respectively by two of volt ohm-milliammeter 6 test pencils with the free end of first drill rod 4 of A2, second drill rod 5 at B2 place, reading volt ohm-milliammeter 6 reading is q.
(6) average pressure drop is calculated
W and the q value upper pacing obtained is averaging, and namely obtains final anode iron carbon pressure depreciation.
In the present embodiment, the diameter of the first drill rod 4 is 10mm, and length is 400mm, apart from the external cylindrical surface region polishing of one end 0 ~ 100mm, apart from the external cylindrical surface region polishing of the other end 0 ~ 150mm.The diameter 10mm of the second drill rod 5, length 200mm, the second drill rod 5 account for the bending of 90 degree, overall length 7/10 ~ 9/10 place at length direction.
In the present invention, drill rod diameter is 10mm, is squeezed in the hole of 8mm, and is all to ensure drill rod and charcoal block close contact by one end external cylindrical surface polishing of drill rod.Drill rod bottom aluminum oxide mud drum is wrapped up in, and for the protection of drill rod, avoiding drill rod to fuse because being corroded from an electrolyte, extending the work-ing life of drill rod.The selection of A1 and A2 point position in order to measure more easily, and is not subject to the interference of charcoal bowl position.The structure design of drill rod is in order to measure more easily, and the especially bending structure of the second drill rod 5, mainly in order to allow measurer away from the electrolyzer of high temperature, can measure again iron carbon pressure more accurately and falling (the longer measuring error of drill rod is larger).Fixing A1, A2, B1, B2 tetra-measuring points are to make the data of measurement more accurately and relatively having better comparability with take off data before.
Compared with correlation technique, owing to securing measuring position, and drill rod and charcoal agllutination close closely, and take off data is accurately stable, and comparability is strong.
Above-described is only embodiments of the present invention, it should be pointed out that for the person of ordinary skill of the art at this, without departing from the concept of the premise of the invention, can also make improvement, but these all belongs to protection scope of the present invention.
Claims (2)
1. an anode iron carbon pressure measuring method of falling, one group of anode in electrolyzer to be measured has two pieces of charcoal blocks, is respectively left charcoal block, right charcoal block; Left charcoal block is linearly respectively arranged with the first left charcoal bowl, the second left charcoal bowl, the 3rd left charcoal bowl and the 4th left charcoal bowl by electrolyzer externally to inside; Right charcoal block is respectively arranged with first right charcoal bowl, second right charcoal bowl, three right charcoal bowl and four right charcoal bowl externally to inside along straight line by electrolyzer; Steel pawl in electrolyzer to be measured comprises crossbeam and is welded on eight claws below described crossbeam, and the cross section of described crossbeam is rectangle, and described claw is right cylinder, the upper surface of described claw and described beam welding; It is characterized in that, the measuring method that described anode iron carbon pressure falls comprises the steps:
(1) prepare drill rod, get four drill rods, wherein two is the first drill rod, and another two is the grinding two end surfaces of the second drill rod, the first drill rod, two ends external cylindrical surface polishing; One 90 degree of bendings of overall length 7/10 ~ 9/10 are being accounted for along its length, the second drill rod grinding two end surfaces from one end wherein of the second drill rod to the other end;
(2) location survey point, measuring point comprises A1, A2, B1, B2 4 point,
A1 point is positioned at distance the first left charcoal bowl and the central point of the second left charcoal bowl and is 90 ~ 110mm and away from the position at Zuo Tankuai center;
A2 point is positioned at distance the first right charcoal bowl and the central point of the second right charcoal bowl and is 90 ~ 110mm and away from the position at You Tankuai center;
B1 point is positioned on the upper surface of the described claw of contiguous described A1 point;
B2 point is positioned on the upper surface of the described claw of contiguous described A2 point;
(3) punch, the first drill rod be installed,
From A1, A2 point respectively to lower punching, aperture is 6 ~ 9mm, and hole depth is 90 ~ 110mm, is squeezed into one end of the external cylindrical surface region polishing of 0 ~ 110mm of two first drill rods in two holes; Wrap up in the bottom of two first drill rods with aluminum oxide mud drum again, parcel scope is around first drill rod of charcoal block upper surface upwards 0 ~ 110mm;
(4) the second drill rod is installed,
By one end of the long section after two second drill rod bendings respectively with B1, B2 spot weld;
(5) pressure measurement is fallen
Volt ohm-milliammeter is adjusted to direct current mV shelves, is contacted respectively by two of volt ohm-milliammeter test pencils with the free end of first drill rod of A1, second drill rod at B1 place, reading volt ohm-milliammeter reading is w;
Volt ohm-milliammeter is adjusted to direct current mV shelves, is contacted respectively by two of volt ohm-milliammeter test pencils with the free end of first drill rod of A2, second drill rod at B2 place, reading volt ohm-milliammeter reading is q;
(6) average pressure drop is calculated
W and the q value upper pacing obtained is averaging, and namely obtains final anode iron carbon pressure depreciation.
2. the anode iron carbon pressure according to claim 1 measuring method of falling, is characterized in that,
In step (1), the diameter of described first drill rod is 10mm, and length is 400mm, apart from the external cylindrical surface region polishing of one end 0 ~ 100mm, apart from the external cylindrical surface region polishing of the other end 0 ~ 150mm;
The diameter 10mm of described second drill rod, length 200mm, the second drill rod account for the bending of 90 degree, overall length 7/10 ~ 9/10 place at length direction;
In step (2), A1 point is positioned at distance the first left charcoal bowl and the central point of the second left charcoal bowl and is 100mm and away from the position at Zuo Tankuai center; A2 point is positioned at distance the first right charcoal bowl and the central point of the second right charcoal bowl and is 100mm and away from the position at You Tankuai center;
In step (3), from A1, A2 point respectively to lower punching, aperture is 8mm, and hole depth is 100mm, is squeezed into one end of the external cylindrical surface region polishing of 0 ~ 100mm of two first drill rods in two holes; Wrap up in the bottom of two first drill rods with aluminum oxide mud drum again, parcel scope is around first drill rod of charcoal block upper surface upwards 0 ~ 100mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510106107.9A CN104674306A (en) | 2015-03-11 | 2015-03-11 | Measuring method of anode iron carbon pressure drop |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510106107.9A CN104674306A (en) | 2015-03-11 | 2015-03-11 | Measuring method of anode iron carbon pressure drop |
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| CN104674306A true CN104674306A (en) | 2015-06-03 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105699783A (en) * | 2016-03-15 | 2016-06-22 | 中冶天工集团有限公司 | Simple and efficient cathode carbon block voltage drop detection method |
| CN107677702A (en) * | 2017-08-14 | 2018-02-09 | 郑州中实赛尔科技有限公司 | Anode rod casting quality detection device and method |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201255563Y (en) * | 2008-05-05 | 2009-06-10 | 郑州凯乐生物能有限公司 | Superheated vapour roller drier |
| CN102230190A (en) * | 2011-06-17 | 2011-11-02 | 兖矿集团有限公司 | Method and device for testing anode iron-carbon voltage drop of aluminum electrolysis cell |
| CN102534683A (en) * | 2010-12-21 | 2012-07-04 | 湖南晟通科技集团有限公司 | Method for measuring voltage drop of anodic ferrum-carbon of aluminium cell under condition of equivalent current |
| CN103741169A (en) * | 2013-12-27 | 2014-04-23 | 云南云铝涌鑫铝业有限公司 | Measurement device and measurement method for pressure dropping of anode carbon block of prebaking slot |
-
2015
- 2015-03-11 CN CN201510106107.9A patent/CN104674306A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201255563Y (en) * | 2008-05-05 | 2009-06-10 | 郑州凯乐生物能有限公司 | Superheated vapour roller drier |
| CN102534683A (en) * | 2010-12-21 | 2012-07-04 | 湖南晟通科技集团有限公司 | Method for measuring voltage drop of anodic ferrum-carbon of aluminium cell under condition of equivalent current |
| CN102230190A (en) * | 2011-06-17 | 2011-11-02 | 兖矿集团有限公司 | Method and device for testing anode iron-carbon voltage drop of aluminum electrolysis cell |
| CN103741169A (en) * | 2013-12-27 | 2014-04-23 | 云南云铝涌鑫铝业有限公司 | Measurement device and measurement method for pressure dropping of anode carbon block of prebaking slot |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105699783A (en) * | 2016-03-15 | 2016-06-22 | 中冶天工集团有限公司 | Simple and efficient cathode carbon block voltage drop detection method |
| CN107677702A (en) * | 2017-08-14 | 2018-02-09 | 郑州中实赛尔科技有限公司 | Anode rod casting quality detection device and method |
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Application publication date: 20150603 |
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