CN112509303A - Anode current collecting system based on wireless transmission - Google Patents
Anode current collecting system based on wireless transmission Download PDFInfo
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- CN112509303A CN112509303A CN202011365985.XA CN202011365985A CN112509303A CN 112509303 A CN112509303 A CN 112509303A CN 202011365985 A CN202011365985 A CN 202011365985A CN 112509303 A CN112509303 A CN 112509303A
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- anode current
- node modules
- wireless transmission
- system based
- range expansion
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- G—PHYSICS
- G08—SIGNALLING
- G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
- G08C17/00—Arrangements for transmitting signals characterised by the use of a wireless electrical link
- G08C17/02—Arrangements for transmitting signals characterised by the use of a wireless electrical link using a radio link
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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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- G—PHYSICS
- G08—SIGNALLING
- G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
- G08C19/00—Electric signal transmission systems
- G08C19/02—Electric signal transmission systems in which the signal transmitted is magnitude of current or voltage
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L69/00—Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass
- H04L69/06—Notations for structuring of protocol data, e.g. abstract syntax notation one [ASN.1]
Abstract
The invention provides an anode current acquisition system based on wireless transmission, which is based on a SimpliciTI network protocol and comprises a plurality of field acquisition node modules distributed at electrolytic cells at corresponding positions on the field, a range expansion node module connected with the corresponding field acquisition node modules, and a data center terminal processing module respectively connected with the field acquisition node modules and the range expansion node modules, wherein the field acquisition node modules, the range expansion node modules and the data center terminal processing module are respectively connected with a wireless communication module. On the basis of comprehensive and in-depth research on network protocols, aiming at the requirements of convenient wiring and low power consumption, the invention tries to design the framework based on open-source SimpliciTI as the network protocol, and compared with the communication protocol working at the 2.4GHz frequency band, the invention supports the SimpliciTI network protocol of the 433MHz working frequency band, and has longer radio wave wavelength, stronger diffraction capability and better environment communication effect with obstacles in workshops and the like.
Description
Technical Field
The invention relates to an anode current acquisition system based on wireless transmission, in particular to an anode current acquisition system based on wireless transmission, which is efficient and accurate in acquisition.
Background
As can be known from the analysis of the production cost of aluminum electrolysis, the electricity charge accounts for 35-47% of the production cost in the aluminum electrolysis production, and the labor force only accounts for less than 5%. The average current efficiency of the aluminum electrolysis cells in western developed countries reaches 95%, compared with that of the aluminum electrolysis cells of the same type in China, the average current efficiency is about 85%, and the aluminum electrolysis yield in China is discharged to the third world in the last century and is continuously increased. Compared with the developed countries in the western world, the current efficiency of the aluminum electrolysis is low, the wasted electricity charges are more than one billion, and the improvement of the current efficiency of the electrolytic aluminum in China is not slow at all.
In the aluminum electrolysis production process, the electrolytic cell plays a crucial role, which is the core of the aluminum electrolysis production process, and the anode is the key of the aluminum electrolysis cell. If the anode current distribution of the aluminum cell is kept in the full current distribution working state for a long time, the service life of the aluminum cell can be prolonged by more than 100 days, and the current efficiency can be improved by 2 to 3 percentage points. On the contrary, if the anode current is unevenly distributed, the local temperature in the lead electrolytic cell is too high, and the lead electrolytic cell is damaged under the thermal stress generated by the cathode carbon lining, thereby affecting various technical indexes. The reduction of the voltage drop of the electrolytic cell and the improvement of the current efficiency can improve the economic benefit, reduce the production cost and improve the cell condition. The accurate measurement of the anode current distribution not only can prejudge the anode effect in advance, prevent and reduce the generation times of the anode effect in advance and reduce the voltage drop of effect sharing, but also can directly or indirectly improve the current efficiency and improve the tank condition, thereby having important economic significance.
Disclosure of Invention
The invention aims to solve the technical problem of the prior art and provides an anode current acquisition system based on wireless transmission, which has the following specific scheme:
the invention relates to an anode current acquisition system based on wireless transmission, which is characterized in that: the anode current acquisition system based on wireless transmission is based on a SimpliciTI network protocol and comprises a plurality of field acquisition node modules distributed at electrolytic tanks at corresponding positions on site, a range expansion node module connected with the field acquisition node modules correspondingly, and a data center terminal processing module respectively connected with the field acquisition node modules and the range expansion node modules, wherein the field acquisition node modules, the range expansion node modules and the data center terminal processing module are respectively connected with a wireless communication module.
The technical problem to be solved by the invention can be further realized by the following technical scheme that the site acquisition node module is arranged at the position corresponding to each electrolytic tank, the site acquisition node module is an anode current acquisition board for acquiring the real-time current of the anode guide rod of the electrolytic tank, and the anode current acquisition board is of a chip structure.
The technical problem to be solved by the invention can be further realized by adopting the following technical scheme that the anode current collecting plate takes STM32F030C8T6 as a main control chip.
The technical problem to be solved by the invention can be further realized by the following technical scheme that a voltage conversion circuit, a clock oscillation circuit, a reset circuit, an A/D conversion circuit, a keyboard interface circuit, a buzzer warning circuit and a 485 bus interface are arranged in the anode current acquisition board.
The technical problem to be solved by the present invention can be further solved by the following technical solution, where the range expansion node module is connected to a unit formed by a plurality of the field acquisition node modules, and the range expansion node module uses STM32F030C8T6 as a main control chip.
The technical problem to be solved by the present invention can be further solved by the following technical solution, where the data center terminal processing module uses STM32F030C8T6 as a main control chip, and is connected to the PLC upper computer.
Compared with the prior art, the invention has the beneficial effects that: on the basis of comprehensive and in-depth research on network protocols, aiming at the requirements of convenient wiring and low power consumption, the invention tries to design the framework based on open-source SimpliciTI as the network protocol, and compared with the communication protocol working at the 2.4GHz frequency band, the invention supports the SimpliciTI network protocol of the 433MHz working frequency band, and has longer radio wave wavelength, stronger diffraction capability and better environment communication effect with obstacles in workshops and the like.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required in the description of the embodiments or the prior art will be briefly introduced below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a block diagram of an anode current collecting system based on wireless transmission according to the present invention.
FIG. 2 is a fluctuation diagram of measured current data of different anode rods of an electrolytic cell at the same time in the anode current collecting system based on wireless transmission.
FIG. 3 is a fluctuation diagram of measured current data of the same group of anode rods of the electrolytic cell at different times in the anode current collecting system based on wireless transmission.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in fig. 1, the anode current collecting system based on wireless transmission provided in this embodiment is based on a SimpliciTI network protocol, and includes a plurality of field collecting node modules distributed at electrolytic cells at corresponding positions on the field, a range extending node module connected to the corresponding field collecting node modules, and a data center terminal processing module respectively connected to the field collecting node modules and the range extending node modules, where the field collecting node modules, the range extending node modules, and the data center terminal processing module are respectively connected to a wireless communication module. On the basis of comprehensive and in-depth research on network protocols, aiming at the requirements of convenient wiring and low power consumption, the invention tries to design the framework based on open-source SimpliciTI as the network protocol, and compared with the communication protocol working at the 2.4GHz frequency band, the invention supports the SimpliciTI network protocol of the 433MHz working frequency band, and has longer radio wave wavelength, stronger diffraction capability and better environment communication effect with obstacles in workshops and the like.
The position corresponding to each electrolytic tank is provided with a field acquisition node module, the field acquisition node module is an anode current acquisition board for acquiring real-time current of an anode guide rod of the electrolytic tank, the anode current acquisition board is of a chip structure and takes STM32F030C8T6 as a main control chip, and a voltage conversion circuit, a clock oscillation circuit, a reset circuit, an A/D conversion circuit, a keyboard interface circuit, a buzzer warning circuit and a 485 bus interface are arranged in the anode current acquisition board.
The range expansion node module is connected with a unit formed by a plurality of field acquisition node modules, and the range expansion node module takes STM32F030C8T6 as a main control chip. The data center terminal processing module takes STM32F030C8T6 as a main control chip and is connected with a PLC upper computer.
The test slot selected in the system test is a 400kA electrolytic slot, the voltage of the test slot is 3.968V, the temperature of the flame body is 945, the number of the guide rods is 24, the number of the guide rods on two sides is 12 respectively, and other structural parameters meet the design standard of the national industrial boiler electrolytic slot. In order to more intuitively see the current distribution, the fluctuation diagram of the measured current data of different anode guide rods at the same time is shown in figure 2, and the total current of the electrolytic cell is 403.51 kA. The average current of the A-side anode rod is 16.77 kA, and the fluctuation range is about 10.90kA to 22.56 kA. The average current of the B-side anode rod is 16.85 kA, and the fluctuation range is about 15.40kA to 17.68 kA. Because of the influence of the magnetic field of the upright post bus, the current distribution of the anode guide rod on the A side is far more uneven than that of the anode guide rod on the B side, and the current value on the B side is more consistent with the theoretical value of the anode guide rod current.
The test slot selected in the system test is a 400kA electrolytic slot, the voltage of the test slot is 3.968V, the temperature of the flame body is 945, the number of the guide rods is 24, the number of the guide rods on two sides is 12 respectively, and other structural parameters meet the design standard of the national industrial boiler electrolytic slot. As shown in fig. 3, the current fluctuation of the anode rod at different times is much larger than that of the anode rod at the side B, which is also influenced by the upright bus bar. The test shows that the system basically realizes the detection of the anode distributed current, the test result accords with the actual production of the electrolytic aluminum plant, and the data transmission is stable and reliable.
The above are only specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can substitute or change the technical solution and the concept of the present invention within the scope of the present invention disclosed by the present invention, and all the persons skilled in the art belong to the scope of the present invention.
Claims (6)
1. The utility model provides an anode current collection system based on wireless transmission which characterized in that: the anode current acquisition system based on wireless transmission is based on a SimpliciTI network protocol and comprises a plurality of field acquisition node modules distributed at electrolytic tanks at corresponding positions on site, a range expansion node module connected with the field acquisition node modules correspondingly, and a data center terminal processing module respectively connected with the field acquisition node modules and the range expansion node modules, wherein the field acquisition node modules, the range expansion node modules and the data center terminal processing module are respectively connected with a wireless communication module.
2. The anode current collecting system based on wireless transmission as claimed in claim 1, wherein: the site acquisition node modules are arranged corresponding to the positions of the electrolytic tanks, the site acquisition node modules are anode current acquisition plates for acquiring real-time current of the anode guide rods of the electrolytic tanks, and the anode current acquisition plates are of chip structures.
3. The anode current collecting system based on wireless transmission as claimed in claim 2, wherein: the anode current collecting plate takes STM32F030C8T6 as a main control chip.
4. The anode current collecting system based on wireless transmission as claimed in claim 3, wherein: and a voltage conversion circuit, a clock oscillation circuit, a reset circuit, an A/D conversion circuit, a keyboard interface circuit, a buzzer warning circuit and a 485 bus interface are arranged in the anode current acquisition board.
5. The anode current collecting system based on wireless transmission as claimed in claim 1, wherein: the range expansion node module is connected with a unit formed by a plurality of field acquisition node modules, and the range expansion node module takes STM32F030C8T6 as a main control chip.
6. The anode current collecting system based on wireless transmission as claimed in claim 1, wherein: the data center terminal processing module uses STM32F030C8T6 as a main control chip, and the data center terminal processing module is connected with a PLC upper computer.
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| CN202011365985.XA CN112509303A (en) | 2020-11-29 | 2020-11-29 | Anode current collecting system based on wireless transmission |
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| CN202011365985.XA CN112509303A (en) | 2020-11-29 | 2020-11-29 | Anode current collecting system based on wireless transmission |
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Citations (8)
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|---|---|---|---|---|
| CN101220489A (en) * | 2007-10-12 | 2008-07-16 | 北京华深中色科技发展有限公司 | On-line testing method for aluminum cell anodic current distribution and monitoring device |
| CN101967659A (en) * | 2010-11-18 | 2011-02-09 | 北方工业大学 | Online monitoring system for current distribution of aluminum electrolysis cell |
| CN102446400A (en) * | 2011-12-26 | 2012-05-09 | 上海电力实业总公司 | Wireless collection system of building energy consumption based on SimpliciTI |
| CN203653718U (en) * | 2013-04-01 | 2014-06-18 | 郑州经纬科技实业有限公司 | System for detecting current distribution of anode of aluminum electrolysis bath |
| CN105441981A (en) * | 2015-11-27 | 2016-03-30 | 贵阳铝镁设计研究院有限公司 | Method and device for wirelessly detecting current of aluminum electrolytic anode rod |
| CN105441980A (en) * | 2015-05-28 | 2016-03-30 | 贵阳铝镁设计研究院有限公司 | Online monitoring device for anode current distribution of aluminum electrolysis cell and monitoring method of online monitoring device |
| WO2017141135A1 (en) * | 2016-02-15 | 2017-08-24 | Dubai Aluminium Pjsc | Method of monitoring individual anode currents in an electrolytic cell suitable for the hall-heroult electrolysis process |
| CN206858674U (en) * | 2017-04-25 | 2018-01-09 | 华中科技大学 | A kind of aluminium electrolysis anode guide rod distributed current Detection ＆ Controling apparatus and system |
-
2020
- 2020-11-29 CN CN202011365985.XA patent/CN112509303A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101220489A (en) * | 2007-10-12 | 2008-07-16 | 北京华深中色科技发展有限公司 | On-line testing method for aluminum cell anodic current distribution and monitoring device |
| CN101967659A (en) * | 2010-11-18 | 2011-02-09 | 北方工业大学 | Online monitoring system for current distribution of aluminum electrolysis cell |
| CN102446400A (en) * | 2011-12-26 | 2012-05-09 | 上海电力实业总公司 | Wireless collection system of building energy consumption based on SimpliciTI |
| CN203653718U (en) * | 2013-04-01 | 2014-06-18 | 郑州经纬科技实业有限公司 | System for detecting current distribution of anode of aluminum electrolysis bath |
| CN105441980A (en) * | 2015-05-28 | 2016-03-30 | 贵阳铝镁设计研究院有限公司 | Online monitoring device for anode current distribution of aluminum electrolysis cell and monitoring method of online monitoring device |
| CN105441981A (en) * | 2015-11-27 | 2016-03-30 | 贵阳铝镁设计研究院有限公司 | Method and device for wirelessly detecting current of aluminum electrolytic anode rod |
| WO2017141135A1 (en) * | 2016-02-15 | 2017-08-24 | Dubai Aluminium Pjsc | Method of monitoring individual anode currents in an electrolytic cell suitable for the hall-heroult electrolysis process |
| CN206858674U (en) * | 2017-04-25 | 2018-01-09 | 华中科技大学 | A kind of aluminium electrolysis anode guide rod distributed current Detection ＆ Controling apparatus and system |
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