Aluminum electrolysis precise aluminum outlet device

Abstract

The present application relates to the technical field of aluminum electrolysis precision aluminum field, a kind of aluminum electrolysis precision aluminum device, including crown car body and vacuum ladle, the lower end of the crown car body is equipped with vacuum ladle, the outer wall of the crown car body is equipped with double output shaft servo motor, the output shaft of the double output shaft servo motor is fixedly connected with main shaft, the end of the main shaft is fixedly connected with roller, the outer wall of the main shaft is rotatably connected with crown car body, the outer wall of the roller is movably connected with track, the lower end of the track is connected with placing mechanism.Crown car body is equipped with double output shaft servo motor, roller and track, positioning is accurate, electrolytic cell is carried out constant temperature anti-condensation by heat preservation conveying pipe, liquid level meter is built in quantitative bin, linkage electric control valve is carried out accurate quantitative aluminum, the heat preservation storage bin of storage mechanism is continuously heat preservation, whole closed loop control, safety is strong, adapt to high temperature high dust electrolytic environment, significantly improve production stability and product qualification rate.

Description

Technical Field

[0001] This invention relates to the technical field of precise aluminum extraction in aluminum electrolysis, specifically to a device for precise aluminum extraction in aluminum electrolysis. Background Technology

[0002] In aluminum electrolysis production, the safe, stable, and precise delivery of high-temperature molten aluminum from the electrolytic cell to subsequent processes directly affects production efficiency, product quality, and production safety.

[0003] While existing precise aluminum tapping devices for aluminum electrolysis have solved the problem of low tapping accuracy due to errors in electrolytic cell tapping systems, these devices suffer from several drawbacks. Firstly, the monitoring modules, such as electronic scales and laser rangefinders, lack adequate protection and are prone to malfunction in high-temperature and high-humidity environments. Secondly, they cannot accurately control tapping parameters, and secondly, poor sealing of connections and pipelines leads to leaks, unstable vacuum, and impacts tapping stability. Furthermore, long-term operation causes component wear, resulting in a continuous decline in accuracy, frequent quality defects, and low product qualification rates, severely affecting production continuity and product quality stability. Summary of the Invention

[0004] The purpose of this invention is to solve the problem that existing aluminum electrolysis precision aluminum extraction devices seriously affect production continuity and product quality stability, and to propose an aluminum electrolysis precision aluminum extraction device.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a precise aluminum electrolysis aluminum extraction device, comprising a crane body and a vacuum lifting bag, wherein the vacuum lifting bag is installed at the lower end of the crane body, a dual-output shaft servo motor is installed on the outer wall of the crane body, the output shaft of the dual-output shaft servo motor is fixedly connected to the main shaft, the end of the main shaft is fixedly connected to the roller, the outer wall of the main shaft is rotatably connected to the crane body, the outer wall of the roller is movably connected to the track, and a placement mechanism is connected to the lower end of the track.

[0006] This setup: The overhead crane body is equipped with a vacuum lifting ladle to achieve initial transfer of molten aluminum. Dual-axis servo motors drive the main shaft and rollers to move along the track, achieving precise positioning of the overhead crane. The placement mechanism supports the electrolytic cell, ensuring stable aluminum tapping position and laying the foundation for precise aluminum tapping.

[0007] Preferably, the placement mechanism includes a placement frame, the upper end of which is fixedly connected to a track, the outer wall of which is fixedly connected to a fixing frame, the surface of which is fixedly connected to an electrolytic cell, the outer wall of which is connected to an injection connector, and the outer wall of the lower end of which is connected to a discharge connector.

[0008] This setup: The placement rack stably secures the electrolytic cell via a fixing frame, the injection connector is used to assist in the input of raw materials, and the discharge connector enables the discharge of molten aluminum. The structure is stable, ensuring the stability of the electrolysis and aluminum tapping process.

[0009] Preferably, the end of the discharge connector is connected to the first insulated conveying pipe, the end of the first insulated conveying pipe is connected to the electromagnetic pump, and the output end of the electromagnetic pump is connected to the second insulated conveying pipe.

[0010] This setting: The insulated conveying pipe reduces the temperature loss of the molten aluminum and prevents solidification. The electromagnetic pump provides stable conveying power, enabling uniform and controllable conveying of the molten aluminum and avoiding flow interruption or overflow.

[0011] Preferably, the outer wall of the electromagnetic pump is threadedly connected to the fixing frame by bolts.

[0012] This setting ensures the electromagnetic pump is securely fixed, operates stably, is easy to disassemble and maintain, and is suitable for high-temperature, high-dust electrolysis environments.

[0013] Preferably, the end of the second insulated conveying pipe is connected to the metering chamber, and a level gauge is installed on the inner wall of the metering chamber.

[0014] This setting: The quantitative storage tank temporarily stores the molten aluminum, and the level gauge monitors the molten aluminum level in real time to accurately measure the amount of aluminum dispensed, ensuring consistent and high-precision aluminum dispensing each time.

[0015] Preferably, an electric control valve is installed at the lower end of the quantitative bin, and a storage mechanism is connected to the end of the electric control valve.

[0016] This setting: The electric control valve automatically opens and closes according to the liquid level signal to achieve quantitative discharge of aluminum liquid. It has a high degree of automation, reduces manual intervention, and improves accuracy and efficiency.

[0017] Preferably, the storage mechanism includes a third insulated conveying pipe, the end of which is connected to an electric control valve and the end of which is connected to an insulated storage silo. The outer wall of the insulated storage silo is fixedly connected to a support frame, and a storage valve is installed on the lower outer wall of the insulated storage silo.

[0018] This setup features an insulated storage silo for storing molten aluminum, continuously insulated to prevent solidification; a support frame provides stable support; and a storage valve controls the output of molten aluminum, adapting to subsequent casting and processing steps, ensuring full insulation and efficient flow.

[0019] Preferably, the upper end of the support frame is fixedly connected to the lifting ring.

[0020] This feature: The lifting rings facilitate the overall hoisting and relocation of the storage mechanism, flexibly adapting to different production stations and improving the equipment's versatility and convenience.

[0021] Preferably, the lower end of the fixing frame is machined with fixing holes.

[0022] This setting: The fixing hole is used to bolt the placement bracket, ensuring that the electrolytic cell is firmly installed, operates stably, and avoids displacement that could affect the aluminum output accuracy.

[0023] Preferably, the output end of the level gauge is electrically connected to the electric control valve.

[0024] This setting: The level gauge is linked with the electric control valve to achieve real-time monitoring of the liquid level, automatic control of discharge, closed-loop control, accurate measurement, and significantly reduced error.

[0025] The present invention proposes a precise aluminum tapping device for aluminum electrolysis, which has the following advantages: the overhead crane body is equipped with a dual-axis servo motor, rollers and rails for precise positioning; the electrolytic cell is kept at a constant temperature and prevented from condensing by the insulated conveying pipe; the quantitative silo has a built-in level gauge and an electric control valve for precise quantitative aluminum tapping; the insulated storage silo of the storage mechanism is continuously kept warm; the whole process is closed-loop controlled, which has strong safety, is suitable for high temperature and high dust electrolysis environment, and significantly improves production stability and product qualification rate. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the structure of the present invention;

[0027] Figure 2 for Figure 1 Schematic diagram of the placement mechanism;

[0028] Figure 3 for Figure 1 Schematic diagram of the combination of medium-quantitative silo and electromagnetic pump;

[0029] Figure 4 for Figure 3 Schematic diagram of the placement rack and fixing rack structure;

[0030] Figure 5 for Figure 1 Schematic diagram of the central storage and depletion mechanism;

[0031] Figure 6 for Figure 1 Schematic diagram of the overhead crane body and track assembly;

[0032] Figure 7 for Figure 1 A schematic diagram of the combination of the overhead crane body and the dual output shaft servo motors.

[0033] In the diagram: 1. Crane body, 2. Vacuum lifting bag, 3. Dual-axis servo motor, 4. Main shaft, 5. Roller, 6. Track, 7. Placement mechanism, 701. Placement rack, 702. Fixing rack, 703. Electrolytic cell, 704. Injection connector, 705. Discharge connector, 8. First insulated conveying pipe, 9. Electromagnetic pump, 10. Second insulated conveying pipe, 11. Quantitative bin, 12. Level gauge, 13. Electric control valve, 14. Storage mechanism, 1401. Third insulated conveying pipe, 1402. Insulated storage bin, 1403. Support frame, 1404. Storage valve, 15. Lifting ring, 16. Fixing hole. Detailed Implementation

[0034] The present invention will be further described below with reference to the accompanying drawings:

[0035] Please see Figure 1-7 In this embodiment, a precise aluminum electrolysis aluminum extraction device includes a crane body 1 and a vacuum lifting bag 2. The vacuum lifting bag 2 is installed at the lower end of the crane body 1. The vacuum lifting bag 2 is fixedly connected to the lower crossbeam of the crane body 1 via a flange and lifting lug structure. The connecting bolts are high-temperature anti-slip locking bolts to ensure that they do not loosen or fall off under crane movement and vibration conditions. A dual-output shaft servo motor 3 is installed on the outer wall of the crane body 1. The dual-output shaft servo motor 3 is fixed to symmetrical positions on both sides of the crane body 1 by reinforced motor mounts and shock-absorbing pads. The motor output shaft and the main shaft 4 are coaxially connected by a rigid coupling to avoid positioning deviation caused by transmission clearance.

[0036] The output shaft of the dual-axis servo motor 3 is fixedly connected to the main shaft 4. The end of the main shaft 4 is fixedly connected to the roller 5. The roller 5 and the main shaft 4 are double-fixed by a keyway and set screw. The roller 5 has anti-slip and wear-resistant textured surfaces, and the contact surface with the track 6 maintains a 0.5mm-1mm gap, ensuring smooth rolling while preventing lateral swaying. The outer wall of the main shaft 4 is rotatably connected to the crane body 1. A double-row deep groove ball bearing and a dustproof sealed end cap are installed between the main shaft 4 and the crane body 1. The bearing is filled with high-temperature grease, which allows for long-term stable rotation in environments above 80℃, reducing rotational resistance and wear.

[0037] The outer wall of roller 5 is movably connected to track 6. Track 6 is made of I-beam steel guide rail, and the rail surface has been quenched and precision ground. The straightness error is controlled within 0.2mm per meter to ensure that the crane body 1 moves smoothly without jamming. The lower end of track 6 is connected to placement mechanism 7. The track 6 and placement frame 701 are reinforced by welded stiffening plates. The weld is subjected to stress-relieving annealing treatment to prevent deformation under long-term stress.

[0038] The placement mechanism 7 includes a placement frame 701, the upper end of which is fixedly connected to the track 6, and the outer wall of the placement frame 701 is fixedly connected to the fixing frame 702. The placement frame 701 and the fixing frame 702 are formed by bending an integral steel section, and a triangular reinforcing plate is added at the connection. The overall load-bearing capacity meets the stable support requirements of the electrolytic cell 703 under full load.

[0039] The surface of the placement rack 701 is fixedly connected to the electrolytic cell 703. A high-temperature resistant heat-insulating rubber pad is placed between the bottom of the electrolytic cell 703 and the placement rack 701, which buffers vibration and isolates high-temperature conduction, preventing the heat of the cell from being directly transferred to the steel structure and causing deformation. The outer wall of the electrolytic cell 703 is connected to the injection connector 704, which is a quick-plug sealing connector with a one-way check structure inside to prevent the backflow of electrolyte or molten aluminum. The lower outer wall of the electrolytic cell 703 is connected to the discharge connector 705, which is located slightly below the side wall of the electrolytic cell 703, at a height slightly higher than the lowest liquid level at the bottom of the cell, ensuring that the molten aluminum in the cell can be fully discharged and avoiding residual liquid accumulation.

[0040] The end of the discharge connector 705 is connected to the first insulated conveying pipe 8. The first insulated conveying pipe 8 adopts a three-layer composite structure consisting of an inner high-temperature resistant alloy pipe, a middle layer of insulation cotton, and an outer protective steel pipe. The insulation layer thickness is not less than 20mm, which can control the temperature drop of the aluminum liquid during the conveying process to within 3℃ / minute. The end of the first insulated conveying pipe 8 is connected to the electromagnetic pump 9. The interfaces of the first insulated conveying pipe 8 with the discharge connector 705 and the electromagnetic pump 9 all adopt a double sealing structure of spherical seal plus locking clamp to prevent leakage of high-temperature aluminum liquid.

[0041] The output end of the electromagnetic pump 9 is connected to the second insulated conveying pipe 10. The structure, material, and insulation performance of the second insulated conveying pipe 10 are consistent with those of the first insulated conveying pipe 8. The two sections of the conveying pipe are connected by flanges, and the sealing gasket is a high-temperature resistant, asbestos-free flexible graphite gasket. The outer wall of the electromagnetic pump 9 is threadedly connected to the fixing frame 702 by bolts. The base of the electromagnetic pump 9 is equipped with shock-absorbing rubber blocks to reduce the transmission of vibration during pump operation and to prevent the fixing frame 702 from fatigue cracking due to long-term vibration.

[0042] The end of the second insulated conveying pipe 10 is connected to the metering chamber 11. The metering chamber 11 is a vertical cylindrical sealed tank with a double-layer insulation structure. The inner wall is made of high-temperature and corrosion-resistant alloy, and the outer wall is a carbon steel protective shell. The middle layer is filled with aluminum silicate insulation cotton to ensure the stability of the aluminum liquid temperature inside the tank. A level gauge 12 is installed on the inner wall of the metering chamber 11. The level gauge 12 is a high-temperature resistant hydrostatic level sensor. The probe is in direct contact with the aluminum liquid, and the detection accuracy reaches ±1mm. It can output a real-time continuous analog level signal and is not affected by high temperature, dust, or magnetic field interference. An electric control valve 13 is installed at the lower end of the metering chamber 11. The electric control valve 13 uses a high-temperature explosion-proof electric actuator. The valve body channel is smooth and without dead corners. The opening and closing response time is less than 0.5 seconds, and the opening and closing action is clean and crisp, without dripping or material accumulation. The end of the electric control valve 13 is connected to the storage mechanism 14. The electric control valve 13, the quantitative bin 11, and the third insulated conveying pipe 1401 are all rigidly connected by flanges, which are reliable in sealing and convenient for disassembly and maintenance.

[0043] The storage mechanism 14 includes a third insulated conveying pipe 1401. The end of the third insulated conveying pipe 1401 is connected to an electric control valve 13. The third insulated conveying pipe 1401 also adopts a three-layer composite insulation structure. Its length is determined according to the on-site workstation layout, and its bending radius is not less than 5 times the pipe diameter to ensure smooth flow of molten aluminum without pipe blockage. The end of the third insulated conveying pipe 1401 is connected to an insulated storage silo 1402. The insulated storage silo 1402 is a vertical, large-capacity insulated tank with a vent valve and observation port at the top.

[0044] An internal flow guide structure is incorporated into the tank to ensure a smooth flow of molten aluminum, preventing impact and splashing. The outer wall of the insulated storage silo 1402 is fixedly connected to the support frame 1403, which employs a four-column symmetrical support structure with adjustable feet at the bottom for easy leveling and to ensure the tank's vertical stability. A storage valve 1404 is installed on the lower outer wall of the insulated storage silo 1402. The storage valve 1404 is dual-purpose (manual and electric), with electric control for normal use and manual quick-closing capability in emergencies, enhancing production safety.

[0045] The upper end of the support frame 1403 is fixedly connected to the lifting ring 15. The lifting ring 15 is made of high-strength forgings, with four rings symmetrically arranged to ensure uniform force distribution during overall lifting and meet the requirements for overall crane lifting and relocation. The lower end of the fixing frame 702 is machined with fixing holes 16, which are oblong holes to facilitate position adjustment during installation and adapt to the fixing requirements of different foundation surfaces. The fixing bolts are expansion bolts or pre-embedded bolts to ensure that the overall structure does not shift or tilt. The output end of the level gauge 12 is electrically connected to the electric control valve 13. The two are connected through a shielded cable, ensuring stable signal transmission that is not affected by electromagnetic interference in the workshop, forming a fully automatic closed-loop control link of "level detection - signal output - valve opening and closing".

[0046] Working principle:

[0047] Assembly and installation process:

[0048] First, the fixing frame 702 and the placement frame 701 are fixed to the pre-set foundation ground in the workshop through the fixing holes 16. The fixing holes 16 are designed with elongated ovals, allowing installers to adjust the horizontal position and verticality of the placement frame 701 within a certain range, ensuring that the track 6 remains strictly parallel to the direction of the overhead crane's movement. After tightening the fixing bolts, the placement frame 701 is re-leveled to ensure that the electrolytic cell 703 does not tilt or shake after placement, providing a structural foundation for subsequent precise aluminum extraction.

[0049] The track 6 is connected to the placement frame 701 to complete the overall structural fixation. During the installation of the track 6, a level and a string line method are used for calibration. The track gauge, straightness, and height difference are all controlled within the design allowable error range to ensure that the crane body 1 runs smoothly and is positioned accurately.

[0050] Then, the electromagnetic pump 9 is fixed to the mounting bracket 702 with bolts. When installing the electromagnetic pump 9, ensure that the pump body is horizontal and that the center of the inlet and outlet is aligned with the center of the first insulated conveying pipe 8 and the second insulated conveying pipe 10 to avoid leakage caused by pipe pressure buildup or uneven wear.

[0051] Connect the first insulated conveying pipe 8 and the second insulated conveying pipe 10 to each component in sequence. After each pipe section is connected, a sealing test is performed using compressed air pressure holding at 1.2 times the working pressure for at least 30 minutes. Only proceed to the next step of installation if there is no pressure drop or leakage. Install the storage mechanism 14 into place using the support frame 1403. After the insulated storage silo 1402 is installed, check that the lifting ring 1405, support frame 1403, and storage valve 1404 are secure and reliable. Once confirmed, complete the overall assembly of the equipment.

[0052] The external power supply powers the dual-axis servo motor 3, electromagnetic pump 9, level gauge 12, and electric control valve 13. The power supply lines use high-temperature resistant and flame-retardant cables. All electrical wiring is housed in sealed conduits, away from high-temperature pipelines and vibrating areas. Terminals are reinforced with cold-pressed terminals to prevent loosening due to high-temperature aging. The control system is equipped with a separate explosion-proof electrical control box, featuring overload protection, short-circuit protection, overheat protection, and emergency stop circuits to meet the special operating conditions of the aluminum electrolysis workshop, including high temperature, high dust, and strong magnetic fields.

[0053] Aluminum tapping process:

[0054] After the aluminum electrolysis process is started, the electrolysis reaction is completed in the electrolysis cell 703. Due to density differences, the aluminum liquid settles at the bottom of the cell, while the electrolyte floats on the top. The discharge connector 705 is positioned precisely at the aluminum liquid layer, ensuring that the extracted aluminum liquid is of high purity and preventing electrolyte contamination that could affect product quality. The electromagnetic pump 9 is then started. Driven by non-contact electromagnetic induction, the electromagnetic pump 9 has no internal rotating parts, preventing contamination of the aluminum liquid. It also operates with low noise and a low failure rate, making it suitable for long-term continuous operation. Under the suction of the electromagnetic pump 9, the aluminum liquid in the electrolysis cell 703 enters the first insulated conveying pipe 8 through the discharge connector 705. The three-layer insulation structure of the first insulated conveying pipe 8 significantly reduces heat loss from the aluminum liquid, preventing cooling, viscosity increase, or even localized solidification during transport, ensuring smooth transport.

[0055] Driven by the electromagnetic pump 9, molten aluminum is uniformly fed into the metering chamber 11 through the second insulated conveying pipe 10. The metering chamber 11 serves as a temporary storage and precise metering unit. The volume of the chamber is designed according to the standard aluminum output per batch, and the interior is smooth with no dead corners, facilitating emptying and cleaning. The level gauge 12 monitors the molten aluminum level in the metering chamber 11 in real time and transmits the continuous level signal to the control system. The control system compares the real-time level with the preset target level, with a data refresh frequency of no less than 10 times per second.

[0056] When the molten aluminum level reaches the set aluminum dispensing threshold, the control system immediately outputs a trigger signal, and the electric control valve 13 quickly opens. The metered molten aluminum in the metering chamber 11 flows into the insulated storage chamber 1402 via the third insulated conveying pipe 1401 for temporary storage. The third insulated conveying pipe 1401 continues to maintain its insulation effect, ensuring that the molten aluminum enters the insulated storage chamber 1402 at a constant temperature, meeting the temperature requirements of subsequent processes. When the liquid level drops to the set lower limit, the level gauge 12 outputs a shut-off signal, and the electric control valve 13 quickly closes, cutting off the molten aluminum passage and completing a precise metered aluminum dispensing operation. The entire process requires no manual intervention; from liquid inlet, detection, metering to liquid discharge, it is fully automated. The aluminum dispensing error can be controlled within ±1%, far superior to traditional manual control methods.

[0057] When molten aluminum is needed, the storage valve 1404 at the lower end of the insulated storage silo 1402 is opened to output a fixed quantity of molten aluminum to the next process, completing the aluminum output operation. The insulated storage silo 1402 can continuously store multiple batches of fixed quantities of molten aluminum and maintain a constant temperature, avoiding solidification of the molten aluminum while waiting for subsequent processes and improving production continuity.

[0058] When the aluminum tapping position needs to be adjusted, the dual-output shaft servo motor 3 is activated. The output shafts on both sides of the servo motor 3 rotate synchronously, transmitting power evenly to the main shafts 4 and rollers 5 on both sides, ensuring consistent running speed on both sides of the overhead crane body 1, preventing deviation and jamming. The dual-output shaft servo motor 3 drives the main shafts 4 to rotate, moving the rollers 5 along the track 6. The servo control system achieves precise positioning with an accuracy of ±5mm, enabling rapid movement of the overhead crane body 1 and the vacuum ladle lifter 2 to the target workstation for efficient transfer. The vacuum ladle lifter 2 can be flexibly transferred under the servo motor's drive, working in conjunction with the precision aluminum tapping system to meet the production needs of multiple electrolytic cells rotating aluminum tapping.

[0059] The entire process utilizes a level gauge-linked control system to achieve closed-loop control of the aluminum output, effectively improving output accuracy, reducing errors, and meeting the precise output requirements of aluminum electrolysis production. Compared to traditional output methods, this device offers more accurate positioning, more precise metering, better insulation, tighter sealing, and more stable operation. It significantly reduces aluminum waste, lowers equipment failure rates, and improves production efficiency and product qualification rates, making it fully adaptable to the harsh working conditions of aluminum electrolysis workshops characterized by high temperatures, high dust levels, and strong magnetic fields.

[0060] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A precise aluminum electrolysis aluminum extraction device, comprising a crane body (1) and a vacuum lifting bag (2), wherein the vacuum lifting bag (2) is installed at the lower end of the crane body (1), characterized in that: The outer wall of the crane body (1) is equipped with a dual-output shaft servo motor (3). The output shaft of the dual-output shaft servo motor (3) is fixedly connected to the main shaft (4). The end of the main shaft (4) is fixedly connected to the roller (5). The outer wall of the main shaft (4) is rotatably connected to the crane body (1). The outer wall of the roller (5) is movably connected to the track (6). The lower end of the track (6) is connected to a placement mechanism (7).

2. The precise aluminum extraction device for aluminum electrolysis according to claim 1, characterized in that: The placement mechanism (7) includes a placement rack (701), the upper end of which is fixedly connected to the track (6), the outer wall of which is fixedly connected to the fixing rack (702), the surface of which is fixedly connected to the electrolytic cell (703), the outer wall of which is connected to the injection connector (704), and the outer wall of the lower end of which is connected to the discharge connector (705).

3. The precise aluminum extraction device for aluminum electrolysis according to claim 2, characterized in that: The end of the discharge connector (705) is connected to the first insulated conveying pipe (8), the end of the first insulated conveying pipe (8) is connected to the electromagnetic pump (9), and the output end of the electromagnetic pump (9) is connected to the second insulated conveying pipe (10).

4. The precise aluminum extraction device for aluminum electrolysis according to claim 3, characterized in that: The outer wall of the electromagnetic pump (9) is threadedly connected to the fixing frame (702) by bolts.

5. The precise aluminum extraction device for aluminum electrolysis according to claim 3, characterized in that: The end of the second insulated conveying pipe (10) is connected to the metering chamber (11), and a level gauge (12) is installed on the inner wall of the metering chamber (11).

6. The precise aluminum extraction device for aluminum electrolysis according to claim 5, characterized in that: An electric control valve (13) is installed at the lower end of the quantitative bin (11), and a storage mechanism (14) is connected to the end of the electric control valve (13).

7. The precise aluminum extraction device for aluminum electrolysis according to claim 6, characterized in that: The storage mechanism (14) includes a third insulated conveying pipe (1401), the end of which is connected to an electric control valve (13), the end of which is connected to an insulated storage silo (1402), the outer wall of which is fixedly connected to a support frame (1403), and a storage valve (1404) is installed on the lower outer wall of which is insulated storage silo (1402).

8. The precise aluminum extraction device for aluminum electrolysis according to claim 7, characterized in that: The upper end of the support frame (142) is fixedly connected to the lifting ring (15), the lower end of the fixing frame (702) is machined with a fixing hole (16), and the output end of the level gauge (12) is electrically connected to the electric control valve (13).

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