CN202925114U - Non-contact on-line measurement device for anode current distribution of aluminum electrolysis bath - Google Patents
Non-contact on-line measurement device for anode current distribution of aluminum electrolysis bath Download PDFInfo
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- CN202925114U CN202925114U CN 201220628743 CN201220628743U CN202925114U CN 202925114 U CN202925114 U CN 202925114U CN 201220628743 CN201220628743 CN 201220628743 CN 201220628743 U CN201220628743 U CN 201220628743U CN 202925114 U CN202925114 U CN 202925114U
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- measurement device
- line measurement
- sampling thief
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- hall sensing
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- 238000005259 measurement Methods 0.000 title claims abstract description 40
- 229910052782 aluminium Inorganic materials 0.000 title claims abstract description 9
- 238000005868 electrolysis reaction Methods 0.000 title abstract description 4
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 title abstract description 3
- 238000004891 communication Methods 0.000 claims abstract description 5
- 238000005070 sampling Methods 0.000 claims description 35
- 238000000034 method Methods 0.000 claims description 12
- AZDRQVAHHNSJOQ-UHFFFAOYSA-N alumane Chemical compound [AlH3] AZDRQVAHHNSJOQ-UHFFFAOYSA-N 0.000 claims description 6
- 230000005540 biological transmission Effects 0.000 claims description 5
- 238000012544 monitoring process Methods 0.000 description 5
- 238000001514 detection method Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 241001269238 Data Species 0.000 description 1
- 241000190022 Pilea cadierei Species 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 210000000038 chest Anatomy 0.000 description 1
- 238000007405 data analysis Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
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Abstract
The utility model discloses a non-contact on-line measurement device for anode current distribution of aluminum electrolysis bath. The on-line measurement device comprises a non-contact sampler, a mounting bracket, a data acquisition module and a computer. The non-contact sampler is fixedly mounted on the mounting bracket, and the non-contact sampler is located at certain distance from an anode rod; the signal output end of the non-contact sampler is connected with the data acquisition module through a high temperature resistant lead, and the data acquisition module is connected with the computer by a communication line. The on-line measurement device can be used for measuring the isometric voltage drop of the anode in real time without opening an electrolysis bath cover, and when changing the anode, the measurement device is free from being detached. The on-line measurement device is simple to produce, convenient to mount, high in measurement precision and high in reliability.
Description
Technical field
The utility model belongs to field of aluminum electrolysis, relates in particular to a kind of anodic current on-line measurement device.
Background technology
Aluminum cell anodic current distributes along with change poles, groove thorax change of shape, bottom land precipitation, negative electrode breakage etc. change.Thereby Current distribution in anode is an important technical data, can react the operation conditions of electrolyzer.Therefore, the on-line monitoring tool of Current distribution in anode has very important significance.
At present, what the monitoring method of Current distribution in anode was more common is manual measurement, i.e. the measuring apparatus that survey crew employing equidistant drop measurement fork connection volt ohm-milliammeter or millivoltmeter form is measured the pressure drop on anode rod.This method is simple, but shortcoming is: data logging is original, and data analysis efficient is not high; Error is larger; Each anode rod data have time delay; Labor intensity of operating staff is large; Open cell cover plate influential to the thermal equilibrium of electrolyzer.The method that current transformer is installed in the anodic current monitoring in addition, this kind method can realize the online detection of electric current, shortcoming is that cost of equipment is high, and the zero drift problem is arranged.Patent CN200610200170.X has introduced a kind of Current distribution in anode device, comprises conical contact, positioning spring, locating sleeve, base, and conical contact is contained in locating sleeve, and its rear portion is connected with the positioning spring; Locating sleeve is connected with the front end of threaded sleeve, and base is connected with the rear end of positioning spring and threaded sleeve; There is connector lug the rear end of base; Base is connected with angle bar frame with insulating mat by its flange with threaded sleeve.This kind device more complicated.Patent CN01107037.4 and CN200610200170.X are similar.Patent CN200710175799.8 discloses the distribution of current line detecting method, and the method is installed on the voltage data gathering device on anode rod, utilizes Radio Transmission Technology, realizes all guide rod voltage datas are gathered simultaneously.Must reinstall the voltage data gathering device when shortcoming of this method is anode change, workload is large, and operates dangerous.Patent CN200920085442.5 discloses and has utilized four three end line hall device measurement of inductance anodic currents, divides 20 grades to show step by step the aluminium cell anode running current by three look show bars.The shortcoming of this patent is that the hall device output signal is dealt with improperly, causes error very large.Patent CN200920230039.7 introduces by the direct measurement of inductance electric current of hall measurement head, the method that shows by number.The shortcoming of this kind method is not consider other guide rods or bus to the impact of measuring head test value, and error is large.
By document and patent analyses and on the-spot investigation as can be known, current way or the equidistant voltage drop value of manual measurement of electrolytic aluminium plant anodic current monitoring now.Other monitoring methods are all in experimental stage now, because the reasons such as accuracy of measurement and cost of equipment do not have large-scale application.
The utility model content
The purpose of this utility model is exactly the problem that exists in order to overcome prior art, and a kind of economy, easy to use and the high aluminum cell anodic current on-line measurement of accuracy of measurement device are provided.
Above-mentioned purpose realizes by following proposal:
A kind of aluminum cell anodic current non-contact type on-line measurement device is characterized in that, described on-line measurement device comprises contactless sampling thief, mounting bracket, data acquisition module and computer; Described contactless sampling thief is fixedly mounted on described mounting bracket, and described contactless sampling thief is apart from the anode rod certain distance; The signal output part of described contactless sampling thief is connected with described data acquisition module by high temperature resistant wire, and described data acquisition module is connected with described computer by connection.
On-line measurement device according to above-mentioned is characterized in that, described contactless sampling thief comprises a plurality of hall sensing devices, arithmetical circuit and is used for the battery of power supply.
On-line measurement device according to above-mentioned is characterized in that, take near first hall sensing device of anode rod as initial point, take the electrolyzer long axis direction as X-axis, take the electrolyzer short-axis direction as Y-axis, take vertical direction as Z axis; Apart from the certain distance of first hall sensing device, other hall sensing devices lay respectively on X-axis or Y-axis or Z axis; The output signal of first hall sensor respectively with the output signal input difference amplifying circuit of other hall sensing devices, the output signal of differential amplifier circuit is again through the output signal of summing circuit output as sampling thief.
On-line measurement device according to above-mentioned is characterized in that, described contactless sampling thief can wrap two hall sensing devices, and one of them hall sensor is arranged on initial point, and another hall sensing device is arranged on Y-axis.
On-line measurement device according to above-mentioned is characterized in that, described contactless sampling thief can wrap four hall sensing devices, and one of them hall sensor is arranged on initial point, and other three hall sensing devices lay respectively on the XYZ coordinate axle.
On-line measurement device according to above-mentioned is characterized in that described mounting bracket is fixed on positive bar, makes sampling thief be located at positive bar downward projection and anode rod in the overlapping region of electrolyzer minor axis horizontal projection, and near anode rod.
On-line measurement device according to above-mentioned is characterized in that described mounting bracket is fixed on the small box fastener base, makes sampling thief be located at positive bar downward projection and anode rod in the overlapping region of electrolyzer minor axis horizontal projection, and near anode rod.
On-line measurement device according to above-mentioned is characterized in that described data acquisition module is by netting twine and computer communication.
On-line measurement device according to above-mentioned is characterized in that described data acquisition module is by wireless transmission method and computer communication.
The beneficial effects of the utility model: the utility model need not load and unload measuring apparatus when changing anode in the situation that do not open the real-time measurement that the groove cover carries out the equidistant pressure drop of anode.The device making is simple, easy for installation, accuracy of detection is high, reliability is high.
Description of drawings
Fig. 1 is the non-contact measurement apparatus schematic diagram;
Fig. 2 is the sampling thief schematic diagram;
Fig. 3 mounting bracket front view;
Fig. 4 is the mounting bracket left view;
Fig. 5 is the E-E view of Fig. 4.
Embodiment
Embodiment 1
The utility model comprises the contactless sampling thief that is arranged on apart from the anode rod certain distance, sampling thief is fixed on 7 li of the positioning boxes of mounting bracket, be used for the data acquisition module that signal data collects, be used for the connection 8 of data transmission and be used for the computer of data processing; Contactless sampling thief comprises four hall sensing devices 2, arithmetical circuit 4 and is used for the battery 1 of power supply, take near first hall sensing device of anode rod as initial point, take the electrolyzer long axis direction as X-axis, take the electrolyzer short-axis direction as Y-axis, take vertical direction as Z axis.Apart from the certain distance of first hall sensing device, other three hall sensing devices lay respectively on three coordinate axis.The output signal of first hall sensor respectively with the output signal input difference amplifying circuit 4 of other three hall sensing devices, the output signal of differential amplifier circuit is again through the output signal of summing circuit output as sampling thief.The output signal of sampling thief is delivered to data acquisition module through high temperature resistant wire 3, and the signal of data acquisition module is sent into computer again and processed, and obtains the data of each anode rod electric current; Mounting bracket be fixed on positive bar by jig 5 or the small box fastener base on, back up pad 6 stationary positioned boxes 7, sampling thief is installed in positioning box 7, makes sampling thief be located at positive bar downward projection and anode rod in the overlapping region of electrolyzer minor axis horizontal projection, and near anode rod.
Embodiment 2
The utility model comprises the contactless sampling thief that is arranged on apart from the anode rod certain distance, sampling thief is fixed on 7 li of the positioning boxes of mounting bracket, be used for the data acquisition module that signal data collects, be used for the connection 8 of data transmission and be used for the computer of data processing; Contactless sampling thief comprises two hall sensing devices, arithmetical circuit and is used for the battery of power supply, take near first hall sensing device of anode rod as initial point, take the electrolyzer long axis direction as X-axis, take the electrolyzer short-axis direction as Y-axis, take vertical direction as Z axis.Apart from the certain distance of first hall sensing device, another one hall sensing device lays respectively on Y-axis.The output signal of first hall sensor respectively with the output signal input difference amplifying circuit 4 of another one hall sensing device, the output signal of differential amplifier circuit is as the output signal of sampling thief.The output signal of sampling thief is delivered to wireless data acquisition module through high temperature resistant wire 3, and the signal of wireless data acquisition module is sent into computer again and processed, and obtains the data of each anode rod electric current; Mounting bracket be fixed on positive bar by jig 5 or the small box fastener base on, back up pad 6 stationary positioned boxes 7, sampling thief is installed in positioning box 7, makes sampling thief be located at positive bar downward projection and anode rod in the overlapping region of electrolyzer minor axis horizontal projection, and near anode rod.
Claims (9)
1. an aluminum cell anodic current non-contact type on-line measurement device, is characterized in that, described on-line measurement device comprises contactless sampling thief, mounting bracket, data acquisition module and computer; Described contactless sampling thief is fixedly mounted on described mounting bracket, and described contactless sampling thief is apart from the anode rod certain distance; The signal output part of described contactless sampling thief is connected with described data acquisition module by high temperature resistant wire, and described data acquisition module is connected with described computer by connection.
2. on-line measurement device according to claim 1, is characterized in that, described contactless sampling thief comprises a plurality of hall sensing devices, arithmetical circuit and is used for the battery of power supply.
3. on-line measurement device according to claim 2, is characterized in that, take near first hall sensing device of anode rod as initial point, take the electrolyzer long axis direction as X-axis, take the electrolyzer short-axis direction as Y-axis, take vertical direction as Z axis; Apart from the certain distance of first hall sensing device, other hall sensing devices lay respectively on X-axis or Y-axis or Z axis; The output signal of first hall sensor respectively with the output signal input difference amplifying circuit of other hall sensing devices, the output signal of differential amplifier circuit is again through the output signal of summing circuit output as sampling thief.
4. on-line measurement device according to claim 3, is characterized in that, described contactless sampling thief can wrap two hall sensing devices, and one of them hall sensor is arranged on initial point, and another hall sensing device is arranged on Y-axis.
5. on-line measurement device according to claim 3, is characterized in that, described contactless sampling thief can wrap four hall sensing devices, and one of them hall sensor is arranged on initial point, and other three hall sensing devices lay respectively on the XYZ coordinate axle.
6. on-line measurement device according to claim 2, it is characterized in that, described mounting bracket is fixed on positive bar, makes sampling thief be located at positive bar downward projection and anode rod in the overlapping region of electrolyzer minor axis horizontal projection, and near anode rod.
7. on-line measurement device according to claim 2, it is characterized in that, described mounting bracket is fixed on the small box fastener base, makes sampling thief be located at positive bar downward projection and anode rod in the overlapping region of electrolyzer minor axis horizontal projection, and near anode rod.
8. on-line measurement device according to claim 1 and 2, is characterized in that, described data acquisition module is by netting twine and computer communication.
9. on-line measurement device according to claim 1 and 2, is characterized in that, described data acquisition module is by wireless transmission method and computer communication.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220628743 CN202925114U (en) | 2012-11-26 | 2012-11-26 | Non-contact on-line measurement device for anode current distribution of aluminum electrolysis bath |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220628743 CN202925114U (en) | 2012-11-26 | 2012-11-26 | Non-contact on-line measurement device for anode current distribution of aluminum electrolysis bath |
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| Publication Number | Publication Date |
|---|---|
| CN202925114U true CN202925114U (en) | 2013-05-08 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201220628743 Expired - Lifetime CN202925114U (en) | 2012-11-26 | 2012-11-26 | Non-contact on-line measurement device for anode current distribution of aluminum electrolysis bath |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104005053A (en) * | 2014-04-29 | 2014-08-27 | 中国铝业股份有限公司 | Apparatus for realizing anode current diversion during aluminum electrolysis cell baking |
| CN104057230A (en) * | 2014-06-19 | 2014-09-24 | 山东电力建设第一工程公司 | Welding-type common-box bus butting fixing fixture |
| CN104316757A (en) * | 2014-11-12 | 2015-01-28 | 北京科技大学 | Aluminum electrolysis anode distribution current accurate measuring instrument |
| CN106119897A (en) * | 2016-08-19 | 2016-11-16 | 河南科达东大国际工程有限公司 | A kind of electrolyzer electric flow distribution and safety monitoring system and electrolytic aluminium equipment |
| CN107543950A (en) * | 2016-06-23 | 2018-01-05 | 沈阳铝镁设计研究院有限公司 | A kind of aluminium cell inner anode electric current On-line Measuring Method |
| CN109518231A (en) * | 2018-12-25 | 2019-03-26 | 云南铝业股份有限公司 | A kind of electrode of aluminum electrolysis cell current distributions measuring device and its measurement method |
| CN110656355A (en) * | 2019-11-06 | 2020-01-07 | 贵阳铝镁设计研究院有限公司 | Clamp of aluminum cell anode current distribution detection device |
-
2012
- 2012-11-26 CN CN 201220628743 patent/CN202925114U/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104005053A (en) * | 2014-04-29 | 2014-08-27 | 中国铝业股份有限公司 | Apparatus for realizing anode current diversion during aluminum electrolysis cell baking |
| CN104057230A (en) * | 2014-06-19 | 2014-09-24 | 山东电力建设第一工程公司 | Welding-type common-box bus butting fixing fixture |
| CN104316757A (en) * | 2014-11-12 | 2015-01-28 | 北京科技大学 | Aluminum electrolysis anode distribution current accurate measuring instrument |
| CN107543950A (en) * | 2016-06-23 | 2018-01-05 | 沈阳铝镁设计研究院有限公司 | A kind of aluminium cell inner anode electric current On-line Measuring Method |
| CN106119897A (en) * | 2016-08-19 | 2016-11-16 | 河南科达东大国际工程有限公司 | A kind of electrolyzer electric flow distribution and safety monitoring system and electrolytic aluminium equipment |
| CN109518231A (en) * | 2018-12-25 | 2019-03-26 | 云南铝业股份有限公司 | A kind of electrode of aluminum electrolysis cell current distributions measuring device and its measurement method |
| CN110656355A (en) * | 2019-11-06 | 2020-01-07 | 贵阳铝镁设计研究院有限公司 | Clamp of aluminum cell anode current distribution detection device |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130508 |
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| CX01 | Expiry of patent term |