CN100427919C - Detection method for carbon block density during the forming process of aluminium electrolyse electrode - Google Patents
Detection method for carbon block density during the forming process of aluminium electrolyse electrode Download PDFInfo
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- CN100427919C CN100427919C CNB200410049608XA CN200410049608A CN100427919C CN 100427919 C CN100427919 C CN 100427919C CN B200410049608X A CNB200410049608X A CN B200410049608XA CN 200410049608 A CN200410049608 A CN 200410049608A CN 100427919 C CN100427919 C CN 100427919C
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- Prior art keywords
- density
- charcoal piece
- charcoal
- moulding
- weight
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- 229910052799 carbon Inorganic materials 0.000 title claims abstract description 29
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title claims abstract description 28
- 238000000034 method Methods 0.000 title claims abstract description 25
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 title claims abstract description 16
- 229910052782 aluminium Inorganic materials 0.000 title claims abstract description 16
- 238000001514 detection method Methods 0.000 title claims abstract description 16
- 230000008569 process Effects 0.000 title claims abstract description 15
- 239000004411 aluminium Substances 0.000 title claims abstract description 14
- 238000006073 displacement reaction Methods 0.000 claims abstract description 18
- 239000003610 charcoal Substances 0.000 claims description 61
- 238000000465 moulding Methods 0.000 claims description 29
- 239000002562 thickening agent Substances 0.000 claims description 7
- 238000005520 cutting process Methods 0.000 claims description 6
- 238000005303 weighing Methods 0.000 claims description 4
- 238000004364 calculation method Methods 0.000 claims description 3
- 230000000875 corresponding effect Effects 0.000 claims description 3
- 238000003825 pressing Methods 0.000 claims description 3
- 238000004088 simulation Methods 0.000 claims description 3
- 238000002360 preparation method Methods 0.000 abstract description 7
- 238000009434 installation Methods 0.000 abstract 1
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 description 6
- 238000005868 electrolysis reaction Methods 0.000 description 6
- 238000005259 measurement Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 229910001208 Crucible steel Inorganic materials 0.000 description 1
- 238000001354 calcination Methods 0.000 description 1
- 150000001721 carbon Chemical class 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000013467 fragmentation Methods 0.000 description 1
- 238000006062 fragmentation reaction Methods 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 230000032696 parturition Effects 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
- 238000002604 ultrasonography Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B30—PRESSES
- B30B—PRESSES IN GENERAL
- B30B11/00—Presses specially adapted for forming shaped articles from material in particulate or plastic state, e.g. briquetting presses, tabletting presses
- B30B11/02—Presses specially adapted for forming shaped articles from material in particulate or plastic state, e.g. briquetting presses, tabletting presses using a ram exerting pressure on the material in a moulding space
- B30B11/022—Presses specially adapted for forming shaped articles from material in particulate or plastic state, e.g. briquetting presses, tabletting presses using a ram exerting pressure on the material in a moulding space whereby the material is subjected to vibrations
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Electrolytic Production Of Metals (AREA)
Abstract
The present invention relates to a detection method for the density of a carbon block in the forming process of an electric aluminium electrolytic electrode, which relates to an on-line detection method for the density of a carbon block formed by vibration in the preparation process of carbon products. The present invention is characterized in that displacement when a heavy hammer falls off is transferred to a PC control system through a displacement sensor on a fixed guide platform, and the density is measured according to a calculating program set by the PC system. The method of the present invention can realize the automatic on-line detection of the density of raw carbon blocks, can directly judge the quality of the carbon block, and has the advantages of easy installation, high precision and simple and reliable structure.
Description
Technical field
Charcoal piece Density Detection method in the electrit electrolysis electrode forming process relates to a kind of carbon product preparation, particularly prebake sun (the moon) utmost point charcoal piece density online detection method of the vibration moulding of electrolgtic aluminium prebake sun (the moon) utmost point preparation process.
Background technology
In the Aluminium Electrolysis process, the charcoal piece is to use as consumable material-Yang (the moon) utmost point, and 1 ton of aluminium of every electrolysis need consume 0.6 ton of charcoal piece approximately, and the quality of charcoal piece is producing directly influence to the quality of electrolytic aluminium finished product.The density of charcoal piece becomes an important parameter of in the Aluminum Electrolysis Production aluminium quality being controlled, so in charcoal formation of lots process, the density of charcoal piece becomes the key factor of the quality of direct reflection charcoal piece.
The preparation process of electrolytic aluminium sun (the moon) charcoal piece is generally: comminution powder batching in the carbon raw preparation-calcining is mixed pinch vibration moulding-measurement-cooling-roasting-finished product.Wherein vibration moulding is one of important procedure of carbon product production, vibration moulding can not only make the charcoal piece have desired specification and geometric shape, also can make simultaneously some physical properties of charcoal piece, obtain certain improvement as density, physical strength, clearence degree, homogenieity and electric conductivity etc.Wherein density is the important indicator of examination charcoal piece quality quality, and it directly has influence on the Aluminum Electrolysis Production index.And in the carbon piece preparation process, because the formation of charcoal piece quality is to be finished by vibration moulding, detect in the density of this operation to the charcoal piece usually, qualified enter next procedure, underproofly return fragmentation and prepare burden again.
At present, the process equipment that is adopted comprises: the bottom has the weight of the rectangular parallelepiped cast steel workpiece of carbon welding bell head, and weight is connected with hydraulic lifting mechanism by chain; Rectangular shaped steel knot hook staving mould is positioned at shaking platform top; Adorn two groups of core shift pieces respectively by two vibrating shafts, drive by vibrating motor and produce the exciting force shaking table; One garden post steel part, its underpart is affixed by flange and weight, that its top is passed in is that the rectangle guide table slips with it, with the guide rod that heavily hangs down and be connected as a single entity, guide table is fixed on the ground by support.Technological process is that the thickener weighing is added in the mould, presses and shaking table vibration moulding by heavily hanging down.The measurement of the sun after the moulding (the moon) utmost point charcoal piece density is the height that is mostly by charcoal piece after the artificial block-by-block measurement moulding, judge the size of charcoal piece density again with the contrast form of prior good charcoal tile height and density, judge according to density whether the charcoal piece of institute's moulding is qualified then.Because the charcoal deblocking temperature height after the vibration moulding, and the environment glance coal is big, moves charcoal block device complexity, causes operating environment and security all relatively poor.Also there is small part producer to adopt ultrasound wave to survey height, laser-measured height, the high density of judging the forming charcoal piece indirectly of cylinder drive scrambler survey.Because these methods all are directly to measure on charcoal piece surface, and bigger limitation is arranged during measurement.As: 1) there are charcoal bowl and thick groove in charcoal piece surface, and the plane may be rough and uneven in surface on the charcoal piece, causes bigger error to measurement; 2) the charcoal piece has high temperature more than 100 ℃ after the moulding, and the oil smoke of environment has caused measuring error; May cause measuring error big owing to be in vibrational state when 3) measuring; 4) above measuring method measuring accuracy is low, can not directly measure the density of every charcoal piece, can only be as indirect reference, and make preparation process form technology at interval, increase the operation field that detects the charcoal piece, the manually-operated difficulty is big, poor working environment is difficult to the quality On-line Control to the charcoal piece.
Summary of the invention
Purpose of the present invention is exactly the deficiency that exists in used for aluminium electrolysis sun (the moon) utmost point charcoal piece preparation process at above-mentioned prior art, provide a kind of and can effectively improve detection efficiency, improve the detecting operation condition, reduce the detecting operation space, improve the charcoal piece Density Detection method in the online aluminium electroloysis electrode moulding process of automation degree of equipment
The objective of the invention is to be achieved through the following technical solutions.
Charcoal piece Density Detection method in the aluminium electroloysis electrode moulding process, it is characterized in that detection method is to fix a displacement transducer on guide table, adorn a pressing plate on the weight guide rod, displacement transducer corresponding actions when weight descends, and send displacement to the PC control system, finish density measure by the calculation procedure of PC default; Measuring process is: after mould has been adorned, weight is fallen minimum point, measure this moment weight die head bottom surface apart from the vibration table surface height H, and adjust displacement transducer, it is output as standard minimum to adjust this moment; After the anode carbon block moulding, this moment, the displacement transducer current signal was h through PC processor output height value, and the charcoal tile height is H+h; According to the anode carbon block shape of required moulding, the volume of charcoal piece is resolved into upper and lower two parts V
OnAnd V
Down, charcoal piece bottom area S
The end, calculate the charcoal bowl bottom respectively with upper volume V according to charcoal piece mould
OnWith charcoal piece bottom area S
The end, respectively S
The endV
OnThe input industrial computer; The weighing carriage device is controlled on request to the thickener cutting stock weight on the equipment in addition, detects the thickener cutting stock weight W of every charcoal piece, just can draw the density p of this piece anode carbon block after moulding:
Compile one section program just can directly be exported each charcoal piece after institute's moulding in simulation system density by the PLC control system.
Method of the present invention can realize giving birth to the automatic on-line Density Detection of charcoal piece, and directly judge the quality of charcoal piece, and easily install, the precision height, simple and reliable for structure.
Description of drawings
Fig. 1 is method shaped device of the present invention and automatic on-line checkout equipment synoptic diagram.
Fig. 2 is a charcoal piece master map after the moulding.
Fig. 3 is charcoal piece vertical view figure after the moulding.
Embodiment
Charcoal piece Density Detection method in the aluminium electroloysis electrode moulding process, on guide table 7, fix a commercial 4mA-20mA displacement transducer 1, adorn a pressing plate 6 on the weight guide rod 5, displacement transducer corresponding actions when weight 2 descends, and send displacement to PC 9, finish density measure by the calculation procedure that the PC control system is set; Measuring process is: after mould 3 has been adorned, weight is fallen minimum point, measure this moment weight die head bottom surface apart from shaking table 4 table surface height H, and adjust displacement transducer, it is output as standard minimum to adjust this moment; After anode carbon block 8 moulding, this moment, the displacement transducer current signal was h through PC processor output height value, and the carbon tile height is H+h; According to the anode carbon block shape of required moulding, the volume of charcoal piece is resolved into last 10,11 two parts V down
OnAnd V
Down, charcoal piece bottom area S
The end, calculate the carbon bowl bottom respectively with upper volume V according to carbon piece mould
OnWith carbon piece bottom area S
The end, respectively S
The endV
OnThe input industrial computer; The weighing carriage device is controlled on request to the thickener cutting stock weight on the equipment in addition, detects the thickener cutting stock weight W of every fast charcoal piece, then just can draw the density p of this piece anode carbon block after moulding:
Compile one section program just can directly be exported each charcoal piece after institute's moulding in simulation system density by the PLC control system.
Embodiment
Design carbon piece weight 655kg, the actual height H=400mm that records heavily vertical die head bottom surface apart from shaking platform, the carbon bowl bottom is with upper volume V
On=63518cm
3, carbon piece bottom area S
The end=7756cm
2, respectively S
The end, V
On, H imports industrial computer, the actual blanking amount W=658kg of system.This moment, the displacement transducer current signal was h=33mm through PC processor output height value, and the carbon tile height is H+h=435mm; System-computed output density ρ=1.64.Actual this carbon piece height of contour of survey is 540mm, and actual computation density is with the detection density value is identical automatically.
Claims (1)
1. the charcoal piece Density Detection method in the aluminium electroloysis electrode moulding process, it is characterized in that detection method is to fix a displacement transducer on guide table, adorn a pressing plate on the weight guide rod, displacement transducer corresponding actions when weight descends, and send displacement to the PC control system, finish density measure by the calculation procedure of PC default; Measuring process is: after mould has been adorned, weight is fallen minimum point, measure this moment weight die head bottom surface apart from the vibration table surface height H, and adjust displacement transducer, it is output as standard minimum to adjust this moment; After the anode carbon block moulding, this moment, the displacement transducer current signal was h through PC processor output height value, and the charcoal tile height is H+h; According to the anode carbon block shape of required moulding, the volume of charcoal piece is resolved into upper and lower two parts V
OnAnd V
Down, charcoal piece bottom area S
The end, calculate the charcoal bowl bottom respectively with upper volume V according to charcoal piece mould
OnWith charcoal piece bottom area S
The end, respectively S
The endV
OnThe input industrial computer; The weighing carriage device is controlled on request to the thickener cutting stock weight on the equipment in addition, detects the thickener cutting stock weight W of every charcoal piece, just can draw the density p of this piece anode carbon block after moulding:
Compile one section program just can directly be exported each charcoal piece after institute's moulding in simulation system density by the PLC control system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB200410049608XA CN100427919C (en) | 2004-06-22 | 2004-06-22 | Detection method for carbon block density during the forming process of aluminium electrolyse electrode |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB200410049608XA CN100427919C (en) | 2004-06-22 | 2004-06-22 | Detection method for carbon block density during the forming process of aluminium electrolyse electrode |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1593874A CN1593874A (en) | 2005-03-16 |
| CN100427919C true CN100427919C (en) | 2008-10-22 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB200410049608XA Expired - Fee Related CN100427919C (en) | 2004-06-22 | 2004-06-22 | Detection method for carbon block density during the forming process of aluminium electrolyse electrode |
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| Country | Link |
|---|---|
| CN (1) | CN100427919C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3213910A1 (en) * | 2016-03-02 | 2017-09-06 | Fives Solios | Counterpressure device for a vibrocompacting machine and machine comprising such a device |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101226124B (en) * | 2007-10-23 | 2011-06-08 | 四川启明星铝业有限责任公司 | On-line monitoring method for shaping carbon block and device thereof |
| CN102095483B (en) * | 2010-11-19 | 2012-07-04 | 太原重工股份有限公司 | Weighing device of carbon extruder |
| CN103668334B (en) * | 2012-09-03 | 2016-06-22 | 沈阳铝镁设计研究院有限公司 | A kind of shaped device of anode carbon bowl |
| CN102995057B (en) * | 2012-12-05 | 2015-09-02 | 中电投宁夏青铜峡能源铝业集团有限公司 | Surface is for plane or V-arrangement face and have cathode block and the preparation method of staggered charcoal bowl |
| CN104931386A (en) * | 2014-03-17 | 2015-09-23 | 沈阳铝镁设计研究院有限公司 | Carbon green anode carbon block online density detection device |
| CN104746104B (en) * | 2015-04-07 | 2017-03-22 | 兰州智成机械设备有限公司 | Vibration forming device of anode carbon blocks for aluminium electrolysis |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5760293A (en) * | 1995-10-18 | 1998-06-02 | Micromeritics | Method and apparatus for measuring envelope and bulk densities |
| CN2450661Y (en) * | 2000-11-22 | 2001-09-26 | 上海白猫有限公司 | Solid particle bulk density in-line measuring device |
| CN1392291A (en) * | 2001-06-18 | 2003-01-22 | 冯乃祥 | Cathode carbon block of aluminium electrolytic bath and its producing method |
-
2004
- 2004-06-22 CN CNB200410049608XA patent/CN100427919C/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5760293A (en) * | 1995-10-18 | 1998-06-02 | Micromeritics | Method and apparatus for measuring envelope and bulk densities |
| CN2450661Y (en) * | 2000-11-22 | 2001-09-26 | 上海白猫有限公司 | Solid particle bulk density in-line measuring device |
| CN1392291A (en) * | 2001-06-18 | 2003-01-22 | 冯乃祥 | Cathode carbon block of aluminium electrolytic bath and its producing method |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3213910A1 (en) * | 2016-03-02 | 2017-09-06 | Fives Solios | Counterpressure device for a vibrocompacting machine and machine comprising such a device |
| FR3048377A1 (en) * | 2016-03-02 | 2017-09-08 | Fives Solios Sa | COUNTERPRESSION DEVICE FOR A VIBROASSING COMPACTION MACHINE AND MACHINE COMPRISING SUCH A DEVICE |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1593874A (en) | 2005-03-16 |
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