CN109594103B - Aluminum electrolysis cell anode effect early warning method - Google Patents
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- 230000000694 effects Effects 0.000 title claims abstract description 73
- 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 23
- 229910052782 aluminium Inorganic materials 0.000 title claims abstract description 23
- 238000005868 electrolysis reaction Methods 0.000 title claims abstract description 6
- 238000006073 displacement reaction Methods 0.000 claims abstract description 91
- 210000004027 cell Anatomy 0.000 claims abstract description 50
- 210000005056 cell body Anatomy 0.000 claims abstract description 9
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 7
- 229910052799 carbon Inorganic materials 0.000 claims abstract description 7
- 230000001133 acceleration Effects 0.000 claims description 9
- 238000001228 spectrum Methods 0.000 claims description 9
- 238000006243 chemical reaction Methods 0.000 claims description 7
- 238000004891 communication Methods 0.000 claims description 7
- 230000003595 spectral effect Effects 0.000 claims description 6
- 239000000284 extract Substances 0.000 claims description 5
- 238000003860 storage Methods 0.000 claims description 3
- 239000007789 gas Substances 0.000 description 10
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 5
- 239000000463 material Substances 0.000 description 5
- 238000005265 energy consumption Methods 0.000 description 4
- 239000003792 electrolyte Substances 0.000 description 3
- 239000003344 environmental pollutant Substances 0.000 description 3
- 230000033001 locomotion Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 231100000719 pollutant Toxicity 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 238000000605 extraction Methods 0.000 description 2
- 230000002401 inhibitory effect Effects 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 230000005764 inhibitory process Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000012805 post-processing Methods 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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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
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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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Abstract
本发明涉及一种铝电解槽阳极效应预警方法，包括电解槽，电解槽包括槽体，槽体上扣合有槽盖板，穿过槽盖板设有阳极导杆；阳极导杆位于槽体内的一端连接阳极碳块，另一端与横梁母线相连；槽盖板上设有位移传感器，位移传感器与预警控制器信号连接以将电解过程中槽盖板的位移信号传递给预警控制器，预警控制器根据位移信号判断是否即将发生阳极效应，预警控制器连接告警装置和槽控机以在判定即将要发生阳极效应时向告警装置和槽控机输出对应指令信号。本发明通过检测槽盖板的位移信息可间接预报阳极效应的发生，并提前预报、处理，预报判断简单可靠，及时性好，为抑制阳极效应的处理争取更多时间，从而减少阳极效应的发生，降耗减排。
The invention relates to an anode effect early warning method for an aluminum electrolytic cell, which comprises an electrolytic cell, the electrolytic cell includes a cell body, a cell cover plate is fastened on the cell body, and an anode guide rod is arranged through the cell cover plate; the anode guide rod is located in the cell body One end is connected to the anode carbon block, and the other end is connected to the beam bus; there is a displacement sensor on the tank cover, and the displacement sensor is connected with the signal of the early warning controller to transmit the displacement signal of the tank cover during the electrolysis process to the early warning controller, and the early warning control The controller judges whether the anode effect is about to occur according to the displacement signal, and the early warning controller is connected to the alarm device and the cell controller to output a corresponding command signal to the alarm device and the cell controller when it is determined that the anode effect is about to occur. The invention can indirectly predict the occurrence of anode effect by detecting the displacement information of the cover plate of the tank, and forecast and process it in advance. , reduce consumption and emission reduction.
Description
技术领域technical field
本发明属于铝的电解法生产技术领域，具体涉及一种铝电解槽阳极效应预警方法。The invention belongs to the technical field of aluminum electrolysis production, and in particular relates to an anode effect early warning method for an aluminum electrolytic cell.
背景技术Background technique
大型铝电解槽多用自动控制系统进行生产管理，生产过程中控制铝电解槽内的物料浓度很关键，自动控制系统中的槽控机通过对铝电解槽内氧化铝浓度的间接判断与分析，可制定合理的下料速度，从而达到对槽内的物料浓度的控制。通过将槽内氧化铝浓度控制在一个较低的范围内，可以获得较高的电流效率和稳定性。但较低的氧化铝浓度往往会带来阳极效应频发的问题，因为氧化铝浓度降低后，电解质与阳极气体的润湿性变差，阳极气体难以从电解质中排出而黏附在阳极碳块的底掌上，气体聚集过多时，会引起槽电压的急剧升高与槽稳定性的剧烈波动，即发生阳极效应。阳极效应的发生伴随着大量的能源消耗，并且会排出污染性的PFC类气体，减少或消除阳极效应的发生是需要解决的问题。Large-scale aluminum electrolytic cells use automatic control systems for production management. It is critical to control the material concentration in the aluminum electrolytic cell during the production process. The cell controller in the automatic control system can indirectly judge and analyze the alumina concentration in the aluminum electrolytic cell. Formulate a reasonable feeding speed, so as to achieve the control of the material concentration in the tank. By controlling the alumina concentration in the tank to a lower range, higher current efficiency and stability can be obtained. However, a lower alumina concentration often brings the problem of frequent anode effects, because after the alumina concentration is reduced, the wettability between the electrolyte and the anode gas becomes poor, and the anode gas is difficult to discharge from the electrolyte and adheres to the anode carbon block. On the bottom palm, when the gas accumulates too much, it will cause a sharp increase in the cell voltage and a violent fluctuation in the cell stability, that is, the anode effect occurs. The occurrence of anode effect is accompanied by a large amount of energy consumption, and polluting PFC gases will be discharged. Reducing or eliminating the occurrence of anode effect is a problem that needs to be solved.
发生阳极效应之后再进行处理属于事后处理，目前更常用的解决手段是通过提前预警的方式，以在阳极效应发生之前进行及时处理，抑制阳极效应的发生。现行的铝电解槽阳极效应预报的方法，通过采集铝电解槽的槽电压，并对槽电压进行解析以判断浓度状态，当电压出现快速攀升时则结合浓度信息给出阳极效应的预报结果；也有如CN101967658A所公开的通过计算电流分布相对误差并与设定阈值进行比较，来给出阳极效应预报结果的。但是，由于针对氧化铝浓度的槽电压解析需要对槽电压数据进行较长时间的滤波，因而预报很难在阳极效应发生之前的足够时间内给出，未能为抑制阳极效应的发生争取足够的处理时间，造成对阳极效应的抑制处理往往时间不足，阳极效应仍然较多发生。Treatment after the anode effect occurs is post-processing. Currently, the more commonly used solution is to use early warning to carry out timely treatment before the anode effect occurs to suppress the occurrence of the anode effect. The current method for predicting the anode effect of aluminum electrolytic cells is to collect the cell voltage of the aluminum electrolytic cell, and analyze the cell voltage to judge the concentration state. As disclosed in CN101967658A, the anode effect prediction result is given by calculating the relative error of the current distribution and comparing it with a set threshold. However, since the cell voltage analysis for the alumina concentration requires a long period of filtering of cell voltage data, it is difficult to give the forecast in a sufficient time before the occurrence of the anode effect, and it is not possible to obtain enough time to suppress the occurrence of the anode effect. Due to the treatment time, the inhibition treatment of the anode effect is often insufficient, and the anode effect still occurs more frequently.
发明内容SUMMARY OF THE INVENTION
针对现有技术的上述不足，本发明要解决的技术问题是提供一种铝电解槽阳极效应预警方法，避免对阳极效应的预警不及时的问题，取得对可能发生的阳极效应进行提前预报，为抑制阳极效应的处理争取更多时间的效果，减少阳极效应的发生，降低能耗和污染物的排放。In view of the above-mentioned deficiencies of the prior art, the technical problem to be solved by the present invention is to provide an early warning method for the anode effect of an aluminum electrolytic cell, which avoids the problem that the early warning of the anode effect is not timely, and obtains the advance forecast of the anode effect that may occur, so that the The treatment of inhibiting the anode effect strives for the effect of more time, reduces the occurrence of the anode effect, and reduces the energy consumption and the emission of pollutants.
为解决上述技术问题，本发明采用如下技术方案：In order to solve the above-mentioned technical problems, the present invention adopts the following technical solutions:
铝电解槽阳极效应预警方法，包括电解槽，所述电解槽包括槽体，所述槽体上扣合有槽盖板，穿过所述槽盖板设有阳极导杆；阳极导杆位于槽体内的一端连接阳极碳块，另一端与横梁母线相连以用于进电；所述槽盖板上设有位移传感器，所述位移传感器与预警控制器信号连接以将电解过程中槽盖板的位移信号传递给预警控制器，预警控制器根据位移信号判断是否即将发生阳极效应，所述预警控制器连接告警装置和槽控机以在判定即将要发生阳极效应时向告警装置和槽控机输出对应指令信号。A method for early warning of anode effect in an aluminum electrolytic cell includes an electrolytic cell, the electrolytic cell includes a cell body, a cell cover plate is fastened on the cell body, and an anode guide rod is arranged through the cell cover plate; the anode guide rod is located in the cell One end of the body is connected to the anode carbon block, and the other end is connected to the beam bus bar for power feeding; a displacement sensor is provided on the tank cover, and the displacement sensor is connected with the early warning controller signal to connect the tank cover during the electrolysis process. The displacement signal is transmitted to the early warning controller, and the early warning controller judges whether the anode effect is about to occur according to the displacement signal. The early warning controller is connected to the alarm device and the cell control machine to output to the alarm device and the cell control machine when it is determined that the anode effect is about to occur. corresponding to the command signal.
进一步完善上述技术方案，所述位移传感器固定连接在槽盖板的上部。To further improve the above technical solution, the displacement sensor is fixedly connected to the upper part of the slot cover.
进一步地，所述预警控制器对接收的位移信号进行位移特征提取，再与预设入的判断阀值进行对比从而进行判断。Further, the early warning controller performs displacement feature extraction on the received displacement signal, and then compares it with a preset judgment threshold to make judgment.
优选地，所述位移特征为槽盖板的绝对位移量，当绝对位移量达到判断阀值则判定即将要发生阳极效应。Preferably, the displacement feature is the absolute displacement of the slot cover, and when the absolute displacement reaches the judgment threshold, it is determined that the anode effect is about to occur.
优选地，所述位移特征为槽盖板的加速度，当加速度达到判断阀值则判定即将要发生阳极效应。Preferably, the displacement feature is the acceleration of the slot cover, and when the acceleration reaches the judgment threshold, it is judged that the anode effect is about to occur.
优选地，所述位移特征为槽盖板的位移频谱，判断阀值为谱特征，当位移频谱接近谱特征则判定即将要发生阳极效应。Preferably, the displacement feature is the displacement spectrum of the slot cover plate, the judgment threshold is the spectral feature, and when the displacement spectrum is close to the spectral feature, it is determined that the anode effect is about to occur.
进一步地，所述预警控制器对接收的位移信号进行提取判断的周期为5秒以上，判定即将要发生阳极效应时向告警装置和槽控机输出对应指令信号，反之则进入下一周期。Further, the cycle of extracting and judging the received displacement signal by the early warning controller is more than 5 seconds. When it is determined that the anode effect is about to occur, the corresponding command signal is output to the alarm device and the slot control machine, otherwise, the next cycle is entered.
进一步地，所述预警控制器包括判断模块，所述判断模块连接电源模块、通信模块、时钟模块、存储模块以及A/D转换模块，所述A/D转换模块连接位移解析模块，所述位移传感器与所述位移解析模块相连接，所述告警装置和槽控机与所述通信模块相连接；所述判断模块内写有所述判断阀值。Further, the early warning controller includes a judgment module, the judgment module is connected to a power supply module, a communication module, a clock module, a storage module and an A/D conversion module, the A/D conversion module is connected to a displacement analysis module, and the displacement The sensor is connected with the displacement analysis module, the alarm device and the slot control machine are connected with the communication module; the judgment threshold is written in the judgment module.
相比现有技术，本发明具有如下有益效果：Compared with the prior art, the present invention has the following beneficial effects:
1、本发明通过检测槽盖板的位移信息可以间接解析获得结壳上部气体的运动状态，从而间接预报阳极效应的发生，对可能发生的阳极效应进行提前预报，预报判断简单可靠，及时性好，为抑制阳极效应的处理争取更多时间，从而减少阳极效应的发生，降低能耗和污染物的排放。1. The present invention can indirectly analyze and obtain the motion state of the gas in the upper part of the crust by detecting the displacement information of the tank cover, thereby indirectly predicting the occurrence of the anode effect, and forecasting the possible anode effect in advance. The prediction judgment is simple and reliable, and the timeliness is good. , to gain more time for the treatment of inhibiting anode effect, thereby reducing the occurrence of anode effect, reducing energy consumption and pollutant discharge.
2、本发明位移传感器安装相对更加灵活，整体造价便宜；预报结果可靠，可以减少人工巡视的工作量。2. The installation of the displacement sensor of the present invention is relatively more flexible, and the overall cost is low; the prediction result is reliable, and the workload of manual inspection can be reduced.
3、本发明可以快速获得效应状态，并可向告警装置和操控系统进行快速反馈，可及早对浓度控制指令进行修正或者补偿。3. The present invention can quickly obtain the effect state, and can quickly feedback to the alarm device and the control system, and can correct or compensate the concentration control instruction as soon as possible.
4、本发明可以提醒人工及早介入，减少槽内物料浓度的波动，提早抑制阳极效应的发生。4. The present invention can remind manual early intervention, reduce the fluctuation of material concentration in the tank, and suppress the occurrence of anode effect in advance.
附图说明Description of drawings
图1-具体实施例的铝电解槽阳极效应预警方法的结构示意图；Fig. 1-the structural representation of the anode effect early warning method of the aluminum electrolytic cell of a specific embodiment;
其中，横梁母线1，阳极导杆2，阳极碳块3，位移传感器4，预警控制器5，槽控机6，告警装置7，槽盖板8，结壳9，槽体10。Among them, beam bus 1, anode guide rod 2, anode carbon block 3, displacement sensor 4, early warning controller 5, tank controller 6, alarm device 7, tank cover 8, crust 9, tank body 10.
具体实施方式Detailed ways
下面结合附图对本发明的具体实施方式作进一步的详细说明。The specific embodiments of the present invention will be further described in detail below with reference to the accompanying drawings.
具体实施例的铝电解槽阳极效应预警方法，通过在线监测槽盖板8位移信息，对所获得的位移信息进行在线解析以间接获得结壳9上部气体运动状态，从而对铝电解槽即将可能发生的阳极效应进行预报。参见图1，包括电解槽，所述电解槽包括槽体10，所述槽体10上扣合有槽盖板8，图中为示意性的一侧构造，另一侧为镜像形式；穿过所述槽盖板8设有阳极导杆2；阳极导杆2位于槽体10内的一端连接阳极碳块3，另一端与横梁母线1相连以用于进电；所述槽盖板8上设有位移传感器4，所述位移传感器4与预警控制器5信号连接以将电解过程中槽盖板8的位移信号传递给预警控制器5，并通过预警控制器5根据位移信号判断是否即将发生阳极效应，所述预警控制器5连接告警装置7和槽控机6（或是槽控机操控系统）以在判定即将要发生阳极效应时向告警装置7和槽控机6输出对应指令信号。The method for early warning of the anode effect of the aluminum electrolytic cell in the specific embodiment is to monitor the displacement information of the tank cover plate 8 online, and perform online analysis on the obtained displacement information to indirectly obtain the gas movement state of the upper part of the crust 9, so that the aluminum electrolytic cell is about to occur. The anode effect is predicted. 1, including an electrolytic cell, the electrolytic cell includes a cell body 10, and a slot cover plate 8 is buckled on the cell body 10, the figure is a schematic one side structure, and the other side is a mirror image; The tank cover 8 is provided with an anode guide rod 2; one end of the anode guide rod 2 located in the tank body 10 is connected to the anode carbon block 3, and the other end is connected to the beam bus 1 for power feeding; Displacement sensor 4 is provided, and the displacement sensor 4 is signal-connected with the early warning controller 5 to transmit the displacement signal of the tank cover 8 in the electrolysis process to the early warning controller 5, and judges whether it is about to happen by the early warning controller 5 according to the displacement signal. Anode effect, the early warning controller 5 is connected to the alarm device 7 and the slot controller 6 (or the slot controller control system) to output a corresponding command signal to the alarm device 7 and the slot controller 6 when it is determined that the anode effect is about to occur.
铝电解槽在将要发生阳极效应前约300s以内，其阳极气体的排放呈现非均匀状态，阳极气体以波浪形周期排放到槽内的结壳9上部空间，阳极气体在从上部空间溢出时会造成槽盖板8的非正常位移，该位移具有特定的频谱和绝对位移幅度范围（可通过阳极效应发生前后实测得到），通过检测槽盖板8的位移信息可以间接解析获得结壳9上部气体的运动状态，从而间接预报阳极效应的发生，对可能发生的阳极效应进行提前预报；位移传感器的应用及对位移信号采样解析判断的方式很成熟，预报判断简单可靠，及时性好，为抑制阳极效应的处理争取更多时间，从而减少阳极效应的发生，降低能耗和污染物的排放。Within about 300s before the anode effect occurs in the aluminum electrolytic cell, the discharge of the anode gas is in a non-uniform state, and the anode gas is discharged into the upper space of the crust 9 in the tank in a wave-shaped cycle. When the anode gas overflows from the upper space, it will cause The abnormal displacement of the slot cover 8 has a specific frequency spectrum and absolute displacement amplitude range (which can be obtained by actual measurement before and after the anode effect occurs). motion state, so as to indirectly predict the occurrence of the anode effect, and predict the possible anode effect in advance; the application of the displacement sensor and the method of sampling, analyzing and judging the displacement signal are very mature, the prediction judgment is simple and reliable, and the timeliness is good, in order to suppress the anode effect The treatment buys more time, thereby reducing the occurrence of anode effect, reducing energy consumption and pollutant emissions.
所述预警控制器5对接收的位移信号进行位移特征提取，再与预设入的判断阀值进行对比从而进行判断，预报阳极效应的发生可能性；预警控制器5对接收的位移信号进行提取判断的周期为五秒以上，判定即将要发生阳极效应时向告警装置7和槽控机6输出对应指令信号，反之则不向告警装置7和槽控机6输出对应指令信号并进入下一提取判断周期。所述位移特征为槽盖板8的绝对位移量、加速度或/和位移频谱，判断阀值与之对应设定。The early warning controller 5 extracts the displacement characteristics of the received displacement signal, and then compares it with the preset judgment threshold to make a judgment to predict the possibility of the occurrence of the anode effect; the early warning controller 5 extracts the received displacement signal. The judging period is more than five seconds. When it is judged that the anode effect is about to occur, the corresponding command signal is output to the alarm device 7 and the slot controller 6. Otherwise, the corresponding command signal is not output to the alarm device 7 and the slot controller 6 and goes to the next extraction. Judgment cycle. The displacement feature is the absolute displacement, acceleration or/and displacement spectrum of the slot cover 8, and the judgment threshold is set correspondingly.
具体地，所述预警控制器5包括判断模块，所述判断模块连接电源模块、通信模块、时钟模块、存储模块以及A/D转换模块，所述A/D转换模块连接位移解析模块，所述位移传感器4与所述位移解析模块相连接，所述告警装置7和槽控机6与所述通信模块相连接；所述判断模块内写有所述判断阀值。位移解析模块接收位移传感器4传送的槽盖板8位移信号并存储，本实施例中对位移信号提取判断的周期为300秒，位移传感器4实时检测槽盖板8的位移情况，并将检测的位移信号传递给位移解析模块，位移解析模块对接收的位移信号进行解析，经A/D转换模块转换为数字量后传入判断模块并提取位移特征，与预设入的判断阀值进行对比从而判断是否即将发生阳极效应。其中，位移特征可以是槽盖板8的绝对位移量，当绝对位移量达到判断阀值的位移量值时则判定即将要发生阳极效应；位移特征也可以是槽盖板8的加速度，当加速度达到判断阀值的加速度上限值时则判定即将要发生阳极效应；位移特征也可以是槽盖板8的位移频谱，判断阀值为谱特征，当位移频谱快速接近判断阀值的谱特征则判定即将要发生阳极效应；位移特征还可以综合槽盖板8的绝对位移量、加速度和位移频谱中的任两个或三个，逐一解析判断，均达到预报条件，则判定即将要发生阳极效应。预警控制器5判定即将要发生阳极效应后，通过通信模块向告警装置7和槽控机6发出对应的指令信号，告警装置7根据指令信号进行预报告警，告警装置7可以是LED面板指示灯或/和语音广播等方式，槽控机6根据指令信号可以对应调节下料速度，从而控制槽内的物料浓度，抑制阳极效应的发生，当然，抑制阳极效应的处理不限于槽控机控制的下料速度调节，还可以结合人工的方式，根据告警装置7的提醒，采用传统的人工方式，及时将木棒插入电解质，挤走阳极碳块3底掌上的聚集气层，或采用人工震动的方式等来处理。Specifically, the early warning controller 5 includes a judgment module, the judgment module is connected to the power supply module, the communication module, the clock module, the storage module and the A/D conversion module, the A/D conversion module is connected to the displacement analysis module, and the The displacement sensor 4 is connected with the displacement analysis module, the alarm device 7 and the slot controller 6 are connected with the communication module; the judgment threshold is written in the judgment module. The displacement analysis module receives and stores the displacement signal of the slot cover 8 transmitted by the displacement sensor 4. In this embodiment, the period for extracting and judging the displacement signal is 300 seconds. The displacement sensor 4 detects the displacement of the slot cover 8 in real time, and will The displacement signal is transmitted to the displacement analysis module, and the displacement analysis module analyzes the received displacement signal, converts the received displacement signal into a digital quantity by the A/D conversion module, and then transmits it to the judgment module and extracts the displacement characteristics, and compares it with the preset judgment threshold. Determine if an anode effect is about to occur. Among them, the displacement feature can be the absolute displacement of the slot cover 8, and when the absolute displacement reaches the displacement value of the judgment threshold, it is determined that an anode effect is about to occur; the displacement feature can also be the acceleration of the slot cover 8, when the acceleration When the acceleration upper limit of the judgment threshold is reached, it is judged that the anode effect is about to occur; the displacement feature can also be the displacement spectrum of the slot cover 8, and the judgment threshold is the spectral feature. When the displacement spectrum is rapidly approaching the spectral feature of the judgment threshold, the It is determined that the anode effect is about to occur; the displacement characteristics can also be combined with any two or three of the absolute displacement, acceleration and displacement spectrum of the tank cover 8, and analyzed and judged one by one. . After the early warning controller 5 determines that the anode effect is about to occur, it sends a corresponding command signal to the warning device 7 and the tank controller 6 through the communication module, and the warning device 7 performs a forecast and alarm according to the command signal. / and voice broadcast, etc., the tank controller 6 can adjust the feeding speed correspondingly according to the command signal, so as to control the material concentration in the tank and suppress the occurrence of anode effect. Of course, the treatment of suppressing anode effect is not limited to the control of the tank controller. According to the reminder of the alarm device 7, the traditional manual method can be used to adjust the material speed, and the wooden stick can be inserted into the electrolyte in time to squeeze out the accumulated gas layer on the bottom palm of the anode carbon block 3, or the method of artificial vibration can be used. wait to be processed.
其中，所述位移传感器4优选固定连接在槽盖板8的上部，获得的位移信号更及时、准确。Wherein, the displacement sensor 4 is preferably fixedly connected to the upper part of the slot cover 8, and the displacement signal obtained is more timely and accurate.
位移传感器4与预警控制器5之间、预警控制器5与告警装置7和槽控机6之间的信号传递可以是有线传输，也可以是无线传输的方式。实施时，对应于槽盖板8与槽体10的扣合连接结构，可以对应实测得到阳极效应发生前后槽盖板8的位移特征，并对应设置预警控制器5的位移解析模块和判断阀值以便后续的在线监控。The signal transmission between the displacement sensor 4 and the early warning controller 5 and between the early warning controller 5 and the alarm device 7 and the slot controller 6 may be wired transmission or wireless transmission. During implementation, corresponding to the buckle connection structure of the slot cover 8 and the tank body 10, the displacement characteristics of the slot cover 8 before and after the anode effect can be obtained corresponding to the actual measurement, and the displacement analysis module and judgment threshold of the early warning controller 5 are correspondingly set. for subsequent online monitoring.
最后说明的是，以上实施例仅用以说明本发明的技术方案而非限制，尽管参照较佳实施例对本发明进行了详细说明，本领域的普通技术人员应当理解，可以对本发明的技术方案进行修改或者等同替换，而不脱离本发明技术方案的宗旨和范围，其均应涵盖在本发明的权利要求范围当中。Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit them. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention can be Modifications or equivalent substitutions without departing from the spirit and scope of the technical solutions of the present invention should be included in the scope of the claims of the present invention.
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4302302A (en) * | 1980-05-09 | 1981-11-24 | Mitsubishi Light Metal Ind., Ltd. | Method of feeding alumina to an aluminium electrolytic cell and apparatus therefor |
| US4563255A (en) * | 1983-02-10 | 1986-01-07 | Swiss Aluminum Ltd. | Process and device for controlling a crust breaking facility |
| WO2008077016A1 (en) * | 2006-12-19 | 2008-06-26 | Michael Schneller | Aluminum production process control |
| CN101787549A (en) * | 2010-03-30 | 2010-07-28 | 云南铝业股份有限公司 | Method for improving inoxidizability of anode of high aluminum electrolysis slot |
| CN101967658A (en) * | 2010-11-18 | 2011-02-09 | 北方工业大学 | Aluminum cell anode effect prediction device |
| CN102808199A (en) * | 2012-07-27 | 2012-12-05 | 中国铝业股份有限公司 | Method for early warning and inhibiting on-line anode effect of aluminum electrolysis cell |
-
2019
- 2019-02-20 CN CN201910126598.1A patent/CN109594103B/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4302302A (en) * | 1980-05-09 | 1981-11-24 | Mitsubishi Light Metal Ind., Ltd. | Method of feeding alumina to an aluminium electrolytic cell and apparatus therefor |
| US4563255A (en) * | 1983-02-10 | 1986-01-07 | Swiss Aluminum Ltd. | Process and device for controlling a crust breaking facility |
| WO2008077016A1 (en) * | 2006-12-19 | 2008-06-26 | Michael Schneller | Aluminum production process control |
| CN101787549A (en) * | 2010-03-30 | 2010-07-28 | 云南铝业股份有限公司 | Method for improving inoxidizability of anode of high aluminum electrolysis slot |
| CN101967658A (en) * | 2010-11-18 | 2011-02-09 | 北方工业大学 | Aluminum cell anode effect prediction device |
| CN101967658B (en) * | 2010-11-18 | 2012-08-15 | 北方工业大学 | Aluminum cell anode effect prediction device |
| CN102808199A (en) * | 2012-07-27 | 2012-12-05 | 中国铝业股份有限公司 | Method for early warning and inhibiting on-line anode effect of aluminum electrolysis cell |
Non-Patent Citations (2)
| Title |
|---|
| "基于信号特征分析的阳极效应检测与预报研究";刘飞岐，;《中国优秀博硕士学位论文全文数据库 (硕士) 工程科技Ⅰ》;20070215(第2期);第B023-20页 * |
| "大型铝电解槽槽壳位移研究";伍洪泽;《中国有色金属学报》;19970630;第7卷(第2期);第65-68页 * |
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