Electrolyte preparation system and preparation method for aluminum refining process
By designing an automated electrolyte preparation system, the problem of relying on manual control of the electrolyte preparation process in the aluminum refining process has been solved, reducing labor investment and improving product quality consistency.
Patent Information
- Application Number
- CN202310901972.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2023-07-20
- Publication Date
- 2025-01-21
AI Technical Summary
In the existing aluminum refining process, the electrolyte preparation process relies on manual regulation, resulting in high manpower investment and difficult to stabilize product quality.
Design an automated electrolyte preparation system, including batching equipment, melting equipment and control equipment. The controller adjusts the furnace speed and feed amount to realize automatic preparation of electrolyte.
It reduces manpower investment, improves the quality consistency of electrolyte products, and ensures the stability of the subsequent aluminum refining process.
Smart Images
Figure CN119332306A_ABST
Abstract
Description
Technical Field
[0001] The present invention belongs to the technical field of electrolysis, and in particular relates to an electrolyte preparation system and a preparation method for an aluminum refining process. Background Art
[0002] Among the aluminum refining processes, three-layer electrolytic aluminum refining is the most widely used method.
[0003] The electrolyte in the three-layer electrolytic aluminum refining process is very important. However, when preparing the electrolyte, the process parameters such as the furnace temperature, current intensity and electrolyte raw material addition amount of the preparation furnace are usually adjusted manually. The operator can only adjust it based on experience. This situation not only greatly increases the manpower required, but also requires extremely high experience from the operator. At the same time, it will make it difficult to grasp the quality of the electrolyte product, and the quality often fluctuates. After being put into the three-layer electrolytic aluminum refining process, it will make it difficult to stabilize the quality of the aluminum product. Summary of the invention
[0004] The technical problem to be solved by the present invention is to provide an electrolyte preparation system for aluminum refining process in view of the above-mentioned deficiencies in the prior art. The system can automatically complete the preparation of electrolyte, reduce manpower input, stabilize the quality of electrolyte products, and facilitate the subsequent three-layer electrolysis aluminum refining process. The present invention also provides an electrolyte preparation method for aluminum refining process.
[0005] The present invention provides an electrolyte preparation system for aluminum refining process, comprising a batching device, a melting device and a control device. The batching device is connected to the melting device and is used to prepare electrolyte raw materials and transport the electrolyte raw materials to the melting device. The melting device is used to melt the electrolyte raw materials. The control device comprises a furnace gear adjustment device, a feed adjustment device and a controller. Under the control of the controller, the furnace gear adjustment device is used to adjust the electrode gear of the melting device, and the feed adjustment device is used to adjust the feed amount of the electrolyte raw materials transported by the batching device to the melting device.
[0006] Preferably, the controller is also electrically connected to the melting equipment, and the controller is used to control the furnace gear adjustment device to adjust the electrode gear of the melting equipment to the first set gear according to the start of the melting equipment, and control the feed adjustment device so that the feed amount delivered by the batching equipment to the melting equipment is the first set material amount. When the feeding of the first set material amount is completed, the feed adjustment device sends a first signal to the controller, and the controller controls the furnace gear adjustment device to adjust the electrode gear of the melting equipment to the second set gear according to the first signal, and controls the feed adjustment device so that the feed amount delivered by the batching equipment to the melting equipment at every second set time interval is the second set material amount, until the total feed amount of the batching equipment to the melting equipment reaches the set total material amount, at which time the feed adjustment device sends a second signal to the controller, and the controller controls the furnace gear adjustment device to adjust the electrode gear of the melting equipment to the third set gear according to the second signal, and after keeping the electrode gear at the third set gear for the first set time, sends a discharge signal to the melting equipment to discharge the melting equipment.
[0007] Preferably, the control device also includes a melting sensing device and a furnace temperature acquisition device. The melting sensing device is electrically connected to the controller, and is used to sense the melting state of the electrolyte raw material in the melting device, and when it is sensed that the electrolyte raw material is completely melted, it sends a fourth signal to the controller. The furnace temperature acquisition device is electrically connected to the controller, and is used to sense the furnace temperature in the melting device, and is also used to send a third signal to the controller when the furnace temperature in the melting device reaches a set temperature. The controller is used to send a discharge signal to the melting device according to the received third signal and fourth signal.
[0008] Preferably, the melting equipment includes an electric arc furnace and a furnace body turning device, the electric arc furnace is connected to the furnace body turning device, the melting of the electrolyte raw material is carried out in the furnace body of the electric arc furnace, a slag box is provided under the electric arc furnace, and the furnace body turning device is electrically connected to the controller, and is used to drive the electric arc furnace to turn after receiving a discharge signal sent by the controller, so that the melted electrolyte raw material enters the slag box.
[0009] Preferably, the melting equipment also includes an electrode and an electrode lifting device, the electrode can be lifted and lowered above the electric arc furnace, the electrode lifting device is connected to the electrode, and is used to drive the electrode to descend and ascend to enter and exit the electric arc furnace, and the furnace gear adjustment device is electrically connected to the electrode, and is used to adjust the current and voltage in the electric arc furnace through the electrode, thereby adjusting the electrode gear of the melting equipment.
[0010] Preferably, a through hole adapted to the electrode is provided on the top of the electric arc furnace, and the electrode enters the interior of the electric arc furnace through the through hole driven by the electrode lifting device, and a seal is provided at the edge of the through hole for sealing the gap between the electrode and the through hole.
[0011] Preferably, a discharge barrel is provided between the batching equipment and the melting equipment, and the feed regulating device includes a first weighing sensor and a first feed valve, the first feed valve is arranged at the discharge barrel, the first weighing sensor is used to sense the weight of the electrolyte raw material passing through the first feed valve and send the weight value to the controller, the controller is used to determine whether the received weight value reaches the first set material amount / the second set material amount / the set total material amount, and control the opening and closing of the first feed valve according to the judgment result, so as to control the opening and closing of the discharge barrel, thereby regulating the feed amount of the electrolyte raw material delivered to the melting equipment.
[0012] Preferably, the batching equipment includes a silo, a discharging device and an intermediate silo. There are multiple silos, each of which is used to store the component materials of the electrolyte raw materials. A group of discharging devices is correspondingly provided at the discharge port of each silo. The discharging device includes a second valve, a second weighing sensor and a conveying pipe. The controller is also electrically connected to the discharging device. Each second weighing sensor is used to sense the discharge amount of each component material passing through the second valve at the discharge port of each silo, and send the discharge amount to the controller. The controller is also used to determine whether the discharge amount of each component material received reaches its preset component weight, and control the opening and closing of each second valve according to the judgment result to control the opening and closing of the discharge machine of each silo, thereby controlling the discharge of each component material. The conveying pipe connects the discharge port of each silo and the intermediate silo, and is used to convey the component materials after discharge to the intermediate silo. The intermediate silo is used to store the mixed component materials and convey the mixed component materials to the melting equipment.
[0013] The present invention also provides a method for preparing an electrolyte for an aluminum refining process, using the above-mentioned electrolyte preparation system, the method comprising the following steps:
[0014] The controller controls the furnace gear adjustment device to adjust the electrode gear of the melting device to a first set gear, so as to feed a first set material amount to the melting device under a first set voltage and a first set current;
[0015] After the first set material amount is fed, the controller controls the furnace gear adjustment device to adjust the electrode gear of the melting device to the second set gear, so as to feed the second set material amount to the melting device at a second set time interval under the second set voltage and the second set current until the total amount of material fed to the melting device reaches the set total amount of material;
[0016] After the total amount of material fed into the melting equipment reaches the set total amount of material, the controller controls the furnace gear adjustment device to adjust the electrode gear of the melting equipment to the third set gear to maintain the first set time at the third set voltage and the third set current until all the electrolyte raw materials are melted and the furnace temperature in the melting equipment reaches the set temperature, then the melting equipment is controlled to discharge the material.
[0017] The present invention provides an electrolyte preparation system for aluminum refining process, and its control device can control the furnace gear adjustment device to adjust the electrode gear of the melting equipment, and control the feed adjustment device to adjust the feed amount of the electrolyte raw material delivered to the melting equipment by the batching device during the preparation process. Therefore, the preparation process of the electrolyte can be fully automatically realized, and the electrolyte can be directly prepared by pre-set parameters without manual participation, so it not only greatly reduces the required manpower, but also basically has no experience requirements for operators. At the same time, the preparation process of each batch of electrolyte is basically consistent, and no manual operation error is introduced. Therefore, the quality of the electrolyte product remains highly consistent, and the stability of the quality of the aluminum product in the subsequent three-layer electrolytic aluminum refining process can also be guaranteed. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] Figure 1 It is a schematic structural diagram of a batching device of an electrolyte preparation system for an aluminum refining process in Example 1 of the present invention;
[0019] Figure 2 It is a schematic diagram of the connection structure of the electrolyte preparation system used for the aluminum refining process in Example 1 of the present invention.
[0020] In the figure: 1. batching equipment; 11. silo; 12. second weighing sensor; 13. conveying pipe; 14. intermediate silo; 2. melting equipment; 3. control equipment. DETAILED DESCRIPTION
[0021] The following will be combined with the accompanying drawings in the present invention to clearly and completely describe the technical solutions in the invention. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of the present invention.
[0022] In the description of the present invention, it should be noted that the terms "upper", "lower" and the like indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings and are only for the convenience and simplification of the description. They do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they should not be understood as limitations on the present invention.
[0023] In the description of the present invention, the terms “first”, “second” and “third” are used for descriptive purposes only and should not be understood as indicating or implying relative importance.
[0024] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "connect", "set", "install", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection, or an integral connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be the internal communication of two elements. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances.
[0025] Example 1
[0026] like Figure 1 As shown, the electrolyte preparation system for aluminum refining process of this embodiment is used to prepare the electrolyte in the aluminum refining process. The system includes a batching device 1, a melting device 2 and a control device 3, and the specific method steps for executing the preparation process can be shown as the method steps proposed in Example 2. The batching device 1 is connected to the melting device 2, and is used to prepare electrolyte raw materials and transport the electrolyte raw materials to the melting device 2. The melting device is used to melt the electrolyte raw materials. The control device 3 includes a furnace gear adjustment device, a feed adjustment device and a controller. The controller is electrically connected to the furnace gear adjustment device and the feed adjustment device. Under the control of the controller, the furnace gear adjustment device is used to adjust the electrode gear of the melting device 2, and the feed adjustment device is used to adjust the feed amount of the electrolyte raw materials transported to the melting device 2 by the batching device 1.
[0027] The preparation system of this embodiment can fully automatically realize the preparation process of the electrolyte. The electrolyte can be directly prepared through pre-set parameters without human intervention. Therefore, it not only greatly reduces the required manpower, but also has basically no experience requirements for operators. At the same time, the preparation process of each batch of electrolyte remains basically consistent, and no manual operation errors are introduced. Therefore, the quality of the electrolyte product remains highly consistent, and the stability of the quality of the aluminum products in the subsequent three-layer electrolytic aluminum refining process can also be guaranteed.
[0028] In this embodiment, the controller is also electrically connected to the melting equipment 2. The controller is used to control the furnace gear adjustment device to adjust the electrode gear of the melting equipment 2 to the first set gear according to the start of the melting equipment 2, and control the feed adjustment device so that the feed amount delivered by the batching equipment 1 to the melting equipment 2 is the first set material amount. When the feeding of the first set material amount is completed, the feed adjustment device sends a first signal to the controller; the controller controls the furnace gear adjustment device to adjust the electrode gear of the melting equipment 2 to the second set gear according to the first signal, and controls the feed adjustment device so that the feed amount delivered by the batching equipment 1 to the melting equipment 2 at every second set time interval is the second set material amount, until the total feed amount of the batching equipment 1 to the melting equipment 2 reaches the set total material amount, at which time the feed adjustment device sends a second signal to the controller, and the controller controls the furnace gear adjustment device to adjust the electrode gear of the melting equipment 2 to the third set gear according to the second signal, and after keeping the electrode gear at the third set gear for the first set time, sends a discharge signal to the melting equipment 2 to discharge the melting equipment 2.
[0029] Specifically, the controller may include a timing module, through which time is measured, and the controller also stores a preset second set time and a first set time.
[0030] In this embodiment, Figure 2 As shown, the factory power supply is passed into the high-voltage cabinet, and the high-voltage cabinet power supply is passed into the melting equipment 2 through the furnace gear adjustment device. The furnace gear adjustment device can be a conventional device on the market such as an electric furnace transformer. The power transmission intensity passed into the melting equipment 2 is adjusted through the electric furnace transformer, thereby adjusting the electrode gear of the melting equipment 2 to each set gear.
[0031] In this embodiment, each setting gear includes a setting current and a setting voltage, the first setting current in the first setting gear is 5000A, the first setting voltage is 30V, the second setting current in the second setting gear is 6000A, the second setting voltage is 26V, and the third setting current in the third setting gear is 9000A, and the third setting voltage is 45V. By adjusting the setting current and setting voltage up and down within the setting range, the temperature in the furnace can also be adjusted to rise and fall within a certain range, and the setting range is specifically selected according to the size of the furnace body and the electrolyte raw material conditions. The first setting material quantity is 2 tons, the feeding speed is 16.7kg / min (i.e. 500kg / 30min), and the feeding is carried out at room temperature; the second setting time is half an hour, the second setting material quantity is 500kg, the feeding speed is 16.7kg / min (i.e. 500kg / 30min), and the feeding starts when the furnace temperature reaches 900℃. The temperature in the furnace will drop instantly after feeding. At this time, the current and voltage in the gear can be adjusted to heat up the arc furnace; the total material amount is set to 3t, and the first setting time is two hours, that is, the entire feeding process is to add 2t first, and then add 500kg every half hour until the total feeding amount reaches 3t, and then keep warm for two hours, and the insulation temperature is 1000℃.
[0032] During the insulation stage, the voltage and current in the electric arc furnace gear can be appropriately adjusted according to the temperature parameters in the furnace to keep the temperature in the furnace as stable as possible at 1000℃.
[0033] In this embodiment, the control device 3 also includes a melting sensing device and a furnace temperature acquisition device. The melting sensing device is electrically connected to the controller, and is used to sense the melting state of the electrolyte raw material in the melting device 2, and when it is sensed that the electrolyte raw material is completely melted, it sends a fourth signal to the controller. The furnace temperature acquisition device is electrically connected to the controller, and is used to sense the furnace temperature in the melting device, and is also used to send a third signal to the controller when the furnace temperature in the melting device 2 reaches the set temperature. The controller is used to send a discharge signal to the melting device 2 according to the received third signal and fourth signal. That is, the condition for the controller to send a discharge signal includes not only that the electrode gear of the melting device 2 is maintained at the third set gear for a time greater than or equal to the first set time, but also that the electrolyte raw material is completely melted, and the furnace temperature reaches the set temperature. When all three conditions are met, the melting device 2 is discharged.
[0034] In this embodiment, the melting sensing device can be an electrical device, such as an image recognition device, and a camera can be used to capture the internal image of the melting device 2, so that the melting state can be determined by the material blocks floating on the liquid surface as features, thereby realizing automatic sensing of the melting state. Alternatively, a person can observe the internal melting state of the melting device 2 through the observation port of the arc furnace cover with the naked eye, and then determine whether to discharge the material according to the melting state.
[0035] In this embodiment, the melting equipment 2 includes an arc furnace and a furnace body turning device. The arc furnace is connected to the furnace body turning device. The electrolyte raw material is melted in the furnace body of the arc furnace. A slag box is provided under the arc furnace. The furnace body turning device is electrically connected to the controller and is used to drive the arc furnace to turn after receiving the discharge signal sent by the controller, so that the melted electrolyte raw material enters the slag box. More specifically, the electrolyte liquid in the arc furnace is first poured into the open bag, and after cooling, the electrolyte in the open bag is poured into the slag box prepared in advance by a crane.
[0036] In this embodiment, the melting equipment 2 also includes an electrode and an electrode lifting device. The electrode can be lifted and lowered above the electric arc furnace. The electrode lifting device is connected to the electrode and is used to drive the electrode to descend and ascend to enter and exit the electric arc furnace. The furnace gear adjustment device is electrically connected to the electrode and is used to adjust the current and voltage in the electric arc furnace through the electrode, thereby adjusting the electrode gear of the melting equipment 2.
[0037] In this embodiment, a through hole adapted to the electrode is provided on the top of the electric arc furnace. The electrode enters the interior of the electric arc furnace through the through hole driven by the electrode lifting device. Three electrodes are provided, and three through holes are adapted thereto. The positions of the through holes correspond to the positions of the electrodes. A sealing member is provided at the edge of the through hole to seal the gap between the electrode and the through hole to prevent powder from flying when feeding.
[0038] In this embodiment, a discharge barrel is provided between the batching equipment 1 and the melting equipment 2. Before starting, the discharge barrel needs to be fixedly connected to the batching equipment 1 and the melting equipment 2. The connection operation can be completed by mechanical parts or operators. The holes are well sealed to prevent powder from flying during feeding. The feed adjustment device includes a first weighing sensor and a first material valve. The first material valve is provided at the discharge barrel. The first weighing sensor is used to sense the weight of the electrolyte raw material passing through the first material valve and send the weight value to the controller. The controller is used to determine whether the received weight value reaches the first set material amount / the second set material amount / the set total material amount, and controls the opening and closing of the first material valve according to the judgment result to control the opening and closing of the discharge barrel, thereby adjusting the feed amount of the electrolyte raw material delivered to the melting equipment 2.
[0039] Specifically, first, the system is started, the controller controls the first material valve to open, and when the first weighing sensor senses that the amount of electrolyte raw material passing through the first material valve reaches a first set material amount, the controller controls the first material valve to close;
[0040] Afterwards, the electrode gear position of the melting equipment 2 is adjusted to the second set gear position, and the controller controls the first material valve to open and time at the same time. When the first weighing sensor senses that the amount of electrolyte raw material passing through the first material valve reaches the second set material amount, the controller controls the first material valve to close, and controls the first material valve to open again when the timing reaches the second set time. Repeat until the first weighing sensor senses that the total amount of electrolyte raw material passing through the first material valve reaches the set total amount of material, and the controller controls the first material valve to close.
[0041] The first weighing sensor can measure the amount of material passing through the first material valve at a single time, and can also directly measure the superposition amount after superposition of each material amount, and this part of the superposition calculation work can also be placed in the controller to complete.
[0042] In this embodiment, the batching equipment 1 includes a silo 11, a discharging device and an intermediate silo 14. There are multiple silos 11, which are respectively used to store the component materials of the electrolyte raw materials. A group of discharging devices is correspondingly provided at the discharge port of each silo 11. The discharging device includes a second material valve, a second weighing sensor 12 and a conveying pipe 13. The controller is also electrically connected to the discharging device. Each second weighing sensor 12 is used to sense the discharge amount of each component material passing through the second material valve at the discharge port of each silo 11, and send the discharge amount to the controller. The controller is also used to determine whether the discharge amount of each component material received reaches its preset component weight, and control the opening and closing of each second material valve according to the judgment result to control the opening and closing of the discharge machine of each silo 11, thereby controlling the discharge of each component material. The conveying pipe 13 connects the discharge port of each silo 11 and the intermediate silo 14, and is used to convey the component materials after discharge to the intermediate silo 14. The intermediate silo 14 is used to store the mixed component materials and convey the mixed component materials to the melting equipment 2.
[0043] In this embodiment, in order to configure the electrolyte, the ratio of each component material of the electrolyte and the weight of each component material must be determined first. Multiple silos 11 are used to store each component material. After receiving the electrolyte ingredient list pre-stored by the operator, the controller sets the discharge amount that the second weighing sensor 12 corresponding to each silo 11 should reach, so that the corresponding amount of material can be weighed from each silo 11.
[0044] When each second weighing sensor 12 senses that the silo 11 has enough material, the silo 11 stops unloading, and then the conveying pipe 13 can be used to transfer the material to the intermediate silo 14. During the entire configuration process, the amount of various materials for configuring the electrolyte can be accurately controlled to obtain an electrolyte with precise components. In addition, during the entire configuration process, the material is no longer exposed to the air, which avoids air pollution, reduces manual participation, and improves efficiency.
[0045] Example 2
[0046] The electrolyte preparation method for aluminum refining process of this embodiment is based on the electrolyte preparation system in Example 1, and the method specifically includes the following steps:
[0047] The controller controls the furnace gear adjustment device to adjust the electrode gear of the melting device 2 to the first setting gear, so as to feed the first setting material amount 2t to the melting device 2 at room temperature with the first setting voltage 30V and the first setting current 5000A, and the feeding speed is 16.7kg / min (i.e. 500kg / 30min);
[0048] After the first set material amount is fed, the controller controls the furnace gear adjustment device to adjust the electrode gear of the melting device 2 to the second set gear, so that the furnace temperature reaches 900°C, and at the second set voltage of 26V and the second set current of 6000A, the second set material amount of 500kg is fed to the melting device 2 every second set time, i.e., half an hour, until the total amount of material fed to the melting device 2 reaches the set total amount of material, i.e., 3t, and the feeding speed is 16.7kg / min (i.e., 500kg / 30min);
[0049] After the total amount of material fed to the melting equipment 2 reaches the set total amount of material, the controller controls the furnace gear adjustment device to adjust the electrode gear of the melting equipment 2 to the third set gear, so as to maintain the first set time (two hours) at the third set voltage of 45V, the third set current of 9000A and the set temperature of 1000°C, until all the electrolyte raw materials are melted and the furnace temperature in the melting equipment 2 is still at the set temperature of 1000°C, and then the material is discharged.
[0050] The method of this embodiment uses an automated preparation system, so it can simplify the operation process and reduce manpower input. In addition, the feeding process of putting a part of the material first and then gradually adding the material is adopted. Compared with the one-time feeding, after there is a part of the melted electrolyte liquid in the furnace, the electrolyte melting rate will be faster and the energy consumption will be reduced. Therefore, there is no need to keep the arc furnace running at a high level, and the temperature in the furnace can be more reasonably controlled.
[0051] It is to be understood that the above embodiments are merely exemplary embodiments used to illustrate the principles of the present invention, but the present invention is not limited thereto. For those of ordinary skill in the art, various modifications and improvements can be made without departing from the spirit and essence of the present invention, and these modifications and improvements are also considered to be within the scope of protection of the present invention.
Claims
1. An electrolyte preparation system for aluminum refining process, characterized in that: It comprises batching equipment (1), melting equipment (2) and control equipment (3), The batching device (1) is connected to the melting device (2) and is used to prepare electrolyte raw materials and transport the electrolyte raw materials to the melting device (2). The melting device (2) is used to melt the electrolyte raw material. The control device (3) comprises a furnace gear adjustment device, a feed adjustment device and a controller. The controller is electrically connected to the furnace gear adjustment device and the feed adjustment device. Under the control of the controller, the furnace gear adjustment device is used to adjust the electrode gear of the melting device (2), and the feed adjustment device is used to adjust the feed amount of the electrolyte raw material delivered by the batching device (1) to the melting device (2).
2. The electrolyte preparation system for aluminum refining process according to claim 1, characterized in that: The controller is also electrically connected to the melting device (2). The controller is used to control the furnace gear adjustment device to adjust the electrode gear of the melting device (2) to a first set gear according to the start of the melting device (2), and control the feed adjustment device to make the feed amount delivered by the batching device (1) to the melting device (2) be the first set material amount, When the first set material amount is fed, the feeding regulating device sends a first signal to the controller. The controller controls the furnace gear adjustment device to adjust the electrode gear of the melting device (2) to a second set gear according to the first signal, and controls the feed adjustment device to make the feed amount delivered by the batching device (1) to the melting device (2) at every second set time interval be the second set material amount, until the total amount of feed fed by the batching device (1) to the melting device (2) reaches the set total amount of material, at which time the feed adjustment device sends a second signal to the controller. The controller controls the furnace gear adjustment device to adjust the electrode gear of the melting device (2) to a third set gear according to the second signal, and after maintaining the electrode gear at the third set gear for a first set time, sends a discharge signal to the melting device (2) to enable the melting device (2) to discharge the material.
3. The electrolyte preparation system for aluminum refining process according to claim 2, characterized in that: The control device (3) also includes a melting sensing device and a furnace temperature acquisition device, The melting sensing device is electrically connected to the controller and is used to sense the melting state of the electrolyte raw material in the melting device (2), and when it is sensed that the electrolyte raw material is completely melted, sends a fourth signal to the controller. The furnace temperature acquisition device is electrically connected to the controller and is used to sense the furnace temperature in the melting device (2) and to send a third signal to the controller when the furnace temperature in the melting device (2) reaches a set temperature. The controller is used for sending a discharge signal to the melting device (2) according to the received third signal and fourth signal.
4. The electrolyte preparation system for aluminum refining process according to claim 2, characterized in that: The melting device (2) comprises an electric arc furnace and a furnace turning device. The electric arc furnace is connected to a furnace body turning device, and the electrolyte raw material is melted in the furnace body of the electric arc furnace. A slag box is provided below the electric arc furnace. The furnace body turning device is electrically connected to the controller and is used to drive the electric arc furnace to turn after receiving a discharge signal sent by the controller, so that the melted electrolyte raw material enters the slag box.
5. The electrolyte preparation system for aluminum refining process according to claim 4, characterized in that: The melting device (2) further comprises an electrode and an electrode lifting device, The electrode is arranged above the electric arc furnace in a liftable manner, and an electrode lifting device is connected to the electrode and is used to drive the electrode to descend and ascend so as to enter and exit the electric arc furnace. The furnace gear adjustment device is electrically connected to the electrodes and is used to adjust the current and voltage in the electric arc furnace through the electrodes, thereby adjusting the electrode gear position of the melting device (2).
6. The electrolyte preparation system for aluminum refining process according to claim 5, characterized in that: The top of the electric arc furnace is provided with a through hole adapted to the electrode. The electrode enters the interior of the electric arc furnace through the through hole driven by the electrode lifting device. A sealing member is provided at the edge of the through hole for sealing the gap between the electrode and the through hole.
7. The electrolyte preparation system for aluminum refining process according to claim 2, characterized in that: A discharge cylinder is provided between the batching device (1) and the melting device (2), and the feed regulating device comprises a first weighing sensor and a first feed valve. The first material valve is arranged at the discharge barrel. The first weighing sensor is used to sense the weight of the electrolyte raw material passing through the first material valve and send the weight value to the controller. The controller is used to determine whether the received weight value reaches the first set material amount / the second set material amount / the set total material amount, and controls the opening and closing of the first material valve according to the determination result to control the opening and closing of the discharge barrel, thereby adjusting the feed amount of the electrolyte raw material delivered to the melting device (2).
8. The electrolyte preparation system for aluminum refining process according to claim 7, characterized in that: The batching equipment (1) comprises a silo (11), a discharging device and an intermediate silo (14). The silos (11) are provided with a plurality of materials, each for storing the various component materials for configuring the electrolyte raw material. A set of discharge devices is provided at the discharge port of each silo (11), and the discharge devices include a second material valve, a second weighing sensor (12) and a conveying pipe (13). The controller is also electrically connected to the discharge device. Each second weighing sensor (12) is used to sense the discharge amount of each component material passing through the second material valve at the discharge port of each silo (11) and send the discharge amount to the controller. The controller is also used to determine whether the amount of each component material received has reached its preset component weight, and to control the opening and closing of each second material valve according to the determination result, so as to control the opening and closing of the material discharger of each silo (11), thereby controlling the discharge of each component material. The conveying pipe (13) is connected to the unloading port of each silo (11) and the intermediate silo (14), and is used to convey the unloaded component materials to the intermediate silo (14). The intermediate bin (14) is used to store the mixed component materials and transport the mixed component materials to the melting device (2).
9. A method for preparing an electrolyte for an aluminum refining process, characterized in that: Using the electrolyte preparation system according to any one of claims 1 to 8, the method comprises the following steps: The controller controls the furnace gear adjustment device to adjust the electrode gear of the melting device (2) to a first set gear, so as to feed a first set material amount to the melting device (2) at a first set voltage and a first set current; After the first set material amount is fed, the controller controls the furnace gear adjustment device to adjust the electrode gear of the melting device (2) to the second set gear, so that the second set material amount is fed to the melting device (2) at a second set time interval under the second set voltage and the second set current until the total amount of material fed to the melting device (2) reaches the set total amount of material; After the total amount of material fed into the melting device (2) reaches the set total amount of material, the controller controls the furnace gear adjustment device to adjust the electrode gear of the melting device (2) to a third set gear, so as to maintain the first set time at the third set voltage and the third set current, until all the electrolyte raw materials are melted and the furnace temperature in the melting device (2) reaches the set temperature, and then the melting device (2) is controlled to discharge the material.