CN113089029A - Intelligent material control method in aluminum electrolysis production process - Google Patents
Intelligent material control method in aluminum electrolysis production process Download PDFInfo
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- CN113089029A CN113089029A CN202110362224.7A CN202110362224A CN113089029A CN 113089029 A CN113089029 A CN 113089029A CN 202110362224 A CN202110362224 A CN 202110362224A CN 113089029 A CN113089029 A CN 113089029A
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- pole changing
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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
- C25C3/14—Devices for feeding or crust breaking
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- Electrolytic Production Of Metals (AREA)
Abstract
The invention discloses an intelligent material control method in an aluminum electrolysis production process, which comprises the following steps: the interface machine automatically updates the pole changing number at zero every day according to the pole changing periodic table and automatically sends the pole changing number to the cell control machine, the cell control machine enters pole changing control after detecting that a pole changing key is pressed, detects voltage change of the electrolytic cell and simultaneously performs pole changing timing, if the voltage change of the electrolytic cell is detected to meet real pole changing conditions or the pole changing duration time exceeds set time, the cell control machine is considered to be real pole changing, the cell control machine automatically controls material for a feeding point near a new anode according to the pole changing number issued by the interface machine after the pole changing is finished, controls material according to set material control times, and automatically restores feeding after the material control is finished; if the cell control machine does not detect the voltage change or the pole changing signal duration is less than the set time after the pole changing key is pressed down, the cell control machine is not considered to be the real pole changing, and the material control is not carried out when the misoperation is carried out. The invention completely solves the defects of the traditional material control method and greatly improves the material control accuracy.
Description
Technical Field
The invention belongs to the technical field of aluminum electrolysis production, and relates to an intelligent material control method in an aluminum electrolysis production process.
Background
The phenomenon of manual material control is more and more common throughout the current large aluminum factories, and mainly has the following reasons: 1. the current intensity of the electrolytic cell is gradually increased, the volume of the cell is also increased, the phenomenon of uneven concentration of local alumina is increased, and the phenomenon of some blanking point accumulation is increased; 2. with the increase of the requirements for energy conservation and consumption reduction, the production with low superheat degree becomes a normal state, the solubility of the alumina is deteriorated, and the phenomena of the blockage of a fire hole and the accumulation of materials are increased; 3. the electrolytic cell has pole changing operation every day, and the newly changed anode is temporarily non-conductive, so that the demand for alumina is reduced, and the phenomenon of material piling at a blanking point near the pole changing is common. The traditional treatment methods mainly comprise two methods: 1. the electromagnetic valve or the ball valve is manually turned off, and the greatest problem of the processing method is that the electromagnetic valve or the ball valve is frequently forgotten to be turned on after being turned off, and is usually thought of only when an effect occurs, and meanwhile, the labor intensity of workers is increased; 2. the blanking function is cut off from the computer, and the biggest problem of the processing method is that all points do not carry out blanking at the same time, the control of materials according to requirements cannot be realized, the problem of uneven concentration of alumina cannot be solved, and meanwhile, the recovery from the computer is also needed manually. Based on the above factors, a new method is urgently needed to meet the requirement of precise material control.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: provides an intelligent material control method in the aluminum electrolysis production process, which aims to solve the problems in the prior art.
The technical scheme adopted by the invention is as follows: an intelligent material control method in the aluminum electrolysis production process comprises the following steps: the interface machine automatically updates the pole changing number at zero every day according to the pole changing periodic table and automatically sends the pole changing number to the cell control machine, the cell control machine enters pole changing control after detecting that a pole changing key is pressed, detects voltage change of the electrolytic cell, and simultaneously performs pole changing timing, if the voltage change of the electrolytic cell is detected to meet real pole changing conditions or the pole changing duration time exceeds set time (such as 20 minutes), the cell control machine considers the cell change to be real pole changing, controls material for a feeding point near a new anode automatically according to the pole changing number issued by the interface machine after the pole changing is finished, controls material according to set material control times, and automatically restores feeding after the material control is finished; if the cell control machine does not detect the voltage change or the duration of the pole changing signal is less than the set time (such as 20 minutes) after the pole changing key is pressed down, the cell control machine is not considered to be the real pole changing, and the material control is not carried out when the misoperation is carried out.
An intelligent material control method in the aluminum electrolysis production process comprises the following steps: except for automatically controlling the material according to the pole changing periodic table after pole changing, the material control and material control time of a certain point is set by an interface machine or a client at any time, when the cell control machine receives a material control signal, the automatic material control and timing are carried out on the point, and when the timing exceeds the set material control time, the blanking is automatically recovered.
The invention has the beneficial effects that: compared with the prior art, the invention introduces the pole changing periodic table through the interface machine, the interface machine automatically sends the pole changing number of the current day to the cell control machine according to the zero point every day of the pole changing periodic table, when the cell control machine detects the pole changing signal, the material control is automatically carried out on the discharging point near the new pole changing after the pole changing signal is finished, and the material control time can be set according to different cell types and cell conditions. In addition, under the condition of non-pole change, any point material control and material control duration time can be set from the interface machine, the cell control machine automatically controls the material at the set point after receiving a command sent by the interface machine, and the blanking is automatically recovered after the time for controlling the material is up. The method completely solves the defects of the traditional material control method, and greatly improves the material control accuracy; the judgment condition is accurate, the real pole changing or the misoperation is distinguished, and the reliability is high; the computer is adopted for timing, so that the situation that the blanking is not recovered on time due to time forgetting like manual material control is avoided; after the method is used, the condition of effect caused by forgetting to recover the blanking is greatly reduced, and the energy consumption is reduced; the method can be completed by using the existing control equipment without adding additional equipment, so that the expenditure is reduced; because the method is automatically executed by a computer, the labor intensity of workers is greatly reduced, and the labor force is saved.
Drawings
FIG. 1 is a schematic flow chart of the present invention.
Detailed Description
The invention is further described with reference to the figures and the specific embodiments.
Example 1: as shown in figure 1, the intelligent material control method in the aluminum electrolysis production process comprises material control after pole change and material control after non-pole change, and the material control method after pole change comprises the following steps: the interface machine automatically updates the pole changing number at zero every day according to the pole changing periodic table and automatically sends the pole changing number to the cell control machine, the cell control machine enters pole changing control after detecting that a pole changing key is pressed, detects voltage change of the electrolytic cell and simultaneously performs pole changing timing, if the voltage change of the electrolytic cell is detected to meet real pole changing conditions or the pole changing duration time exceeds set time (such as 20 minutes), the cell control machine considers that the cell control machine is real pole changing, controls materials at a blanking point near a new anode automatically according to the pole changing number issued by the interface machine after the pole changing is finished, controls materials according to set material control times, and automatically restores blanking after the material control is finished; if the cell control machine does not detect the voltage change or the duration of the pole changing signal is less than the set time (such as 20 minutes) after the pole changing key is pressed down, the cell control machine is not considered to be the real pole changing, and when the misoperation is carried out, the material control is not carried out; the material control method after pole changing comprises the following steps: except for automatically controlling the material according to the pole changing periodic table after pole changing, the material control and material control time of a certain point is set by an interface machine or a client at any time, when the cell control machine receives a material control signal, the automatic material control and timing are carried out on the point, and when the timing exceeds the set material control time, the blanking is automatically recovered.
The anode-changing periodic table is an electrolytic cell anode-changing periodic table, and is changed one block every day, and one period is about 34 days.
The method has the following advantages:
1. the judgment condition is accurate, the real pole changing or the misoperation is distinguished, and the reliability is high.
2. By adopting the computer for timing, the situation that the blanking is not recovered on time due to time forgetting like manual material control is avoided.
3. After the method is used, the condition of effect caused by forgetting to recover the blanking is greatly reduced, and the energy consumption is reduced.
4. The method can be completed by using the existing control equipment without adding additional equipment, thereby reducing the expenditure.
5. Because the method is automatically executed by a computer, the labor intensity of workers is greatly reduced, and the labor force is saved.
The above description is only an embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of changes or substitutions within the technical scope of the present invention, and therefore, the scope of the present invention should be determined by the scope of the claims.
Claims (2)
1. An intelligent material control method in the aluminum electrolysis production process is characterized in that: the method comprises the following steps: the interface machine automatically updates the pole changing number at zero every day according to the pole changing periodic table and automatically sends the pole changing number to the cell control machine, the cell control machine enters pole changing control after detecting that a pole changing key is pressed, detects the voltage change of the electrolytic cell and simultaneously performs pole changing timing, if the voltage change of the electrolytic cell is detected to meet real pole changing conditions or the pole changing duration time exceeds set time, the cell control machine is considered to be real pole changing, the cell control machine automatically controls the feeding point near a new anode according to the pole changing number issued by the interface machine after the pole changing is finished, controls the feeding according to the set feeding times, and automatically restores the feeding after the feeding is finished; if the cell control machine does not detect the voltage change or the pole changing signal duration is less than the set time after the pole changing key is pressed down, the cell control machine is not considered to be the real pole changing, and the material control is not carried out when the misoperation is carried out.
2. The intelligent material control method in the aluminum electrolysis production process according to claim 1, characterized in that: the method comprises the following steps: except for automatically controlling the material according to the pole changing periodic table after pole changing, the material control and material control time of a certain point is set by an interface machine or a client at any time, when the cell control machine receives a material control signal, the automatic material control and timing are carried out on the point, and when the timing exceeds the set material control time, the blanking is automatically recovered.
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| CN202110362224.7A CN113089029A (en) | 2021-04-02 | 2021-04-02 | Intelligent material control method in aluminum electrolysis production process |
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Citations (9)
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|---|---|---|---|---|
| US4126525A (en) * | 1977-06-22 | 1978-11-21 | Mitsubishi Keikinzoku Kogyo Kabushiki Kaisha | Method of controlling feed of alumina to an aluminum electrolytic cell |
| US6033550A (en) * | 1996-06-17 | 2000-03-07 | Aluminium Pechiney | Process for controlling the alumina content of the bath in electrolysis cells for aluminum production |
| CN102534684A (en) * | 2010-12-21 | 2012-07-04 | 贵阳铝镁设计研究院有限公司 | Method for controlling electrolytic cell under low-voltage production |
| CN107620092A (en) * | 2017-11-06 | 2018-01-23 | 河南科达东大国际工程有限公司 | A kind of aluminium electroloysis single-point discharging control method and system |
| CN108914162A (en) * | 2018-08-07 | 2018-11-30 | 北方工业大学 | Method and system for controlling feeding amount of aluminum oxide |
| CN109183074A (en) * | 2018-11-02 | 2019-01-11 | 中南大学 | A kind of aluminum cell supplying method based on anode change cycle |
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| CN111155149A (en) * | 2020-01-17 | 2020-05-15 | 湖南阿尔惠特科技股份有限公司 | Aluminum electrolysis intelligent optimization control platform based on digital electrolytic cell |
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2021
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| US4126525A (en) * | 1977-06-22 | 1978-11-21 | Mitsubishi Keikinzoku Kogyo Kabushiki Kaisha | Method of controlling feed of alumina to an aluminum electrolytic cell |
| US6033550A (en) * | 1996-06-17 | 2000-03-07 | Aluminium Pechiney | Process for controlling the alumina content of the bath in electrolysis cells for aluminum production |
| CN102534684A (en) * | 2010-12-21 | 2012-07-04 | 贵阳铝镁设计研究院有限公司 | Method for controlling electrolytic cell under low-voltage production |
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| CN108914162A (en) * | 2018-08-07 | 2018-11-30 | 北方工业大学 | Method and system for controlling feeding amount of aluminum oxide |
| CN109183074A (en) * | 2018-11-02 | 2019-01-11 | 中南大学 | A kind of aluminum cell supplying method based on anode change cycle |
| CN109576738A (en) * | 2018-12-27 | 2019-04-05 | 中国神华能源股份有限公司 | Pole changing of aluminum electrolytic cell control method, storage medium and electronic equipment |
| CN112575349A (en) * | 2019-09-29 | 2021-03-30 | 沈阳铝镁设计研究院有限公司 | Aluminum oxide blanking and concentration control method for aluminum electrolysis cell |
| CN111155149A (en) * | 2020-01-17 | 2020-05-15 | 湖南阿尔惠特科技股份有限公司 | Aluminum electrolysis intelligent optimization control platform based on digital electrolytic cell |
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