A smart embedded storage facility for the anode of an aluminum electrolysis workshop

Abstract

This invention discloses an intelligent embedded storage facility for anodes in an aluminum electrolysis workshop. It includes a closed residual anode cooling zone located at the end of the electrolysis workshop, a temporary residual anode storage area and a new anode storage area located outside an adjacent corridor. A horizontal flue is installed in the closed residual anode cooling zone, with its end connected to an electrolysis flue gas purification system. Automatic ground-mounted sliding rails are installed in the closed residual anode cooling zone, the temporary residual anode storage area, and the new anode storage area, with transfer robots mounted on these rails. An automatic roller shutter door is installed at the entrance of the closed residual anode cooling zone. This invention can save transportation time for new anodes, improve operational efficiency, and promptly and effectively collect and purify harmful gases released during the residual anode cooling process, reducing residual anode handling costs and meeting environmental protection requirements.

Description

Technical Field

[0001] This invention relates to an intelligent embedded storage facility for the anode of an aluminum electrolysis workshop, belonging to the field of aluminum electrolysis technology. Background Technology

[0002] Electrolytic aluminum is the process of extracting metallic aluminum from alumina using the Holleruz process. The electrolytic cell, as the main equipment in an electrolytic aluminum plant, consists of an anode assembly, cathode lining, and busbar system. During electrolysis, the prebaked anode participates in the chemical reaction and is gradually consumed as the electrolysis reaction occurs. When approximately 15%–25% of the prebaked anode remains, it becomes a hot residual anode, requiring replacement to ensure stable operation of the electrolytic cell. This necessitates that the area where new anodes are stored be close to the electrolysis workshop for easy access by overhead cranes or anode handling equipment, saving anode transportation time.

[0003] When the hot electrode residue is removed from the electrolytic cell, its temperature reaches 800℃~900℃, requiring cooling to room temperature (<100℃) before subsequent processing. Direct exposure of the high-temperature electrode residue (800-900℃) to air can cause fires or burns. Furthermore, the electrode surface is covered with a large amount of cryolite (Na3AlF6) and fluoride salts (such as AlF3), which release harmful gases such as hydrogen fluoride (HF) during natural cooling. These emissions are concentrated within 30 minutes of the electrode residue being removed from the electrolytic cell. HF is highly corrosive; its presence in the electrolysis workshop can damage factory equipment, deteriorate the working environment for workers, and seriously affect their health. When it spreads to the surrounding area, it will pollute the ecological environment.

[0004] Currently, there are three main methods for cooling residual electrodes: First, using an overhead crane to remove the residual electrodes from the electrolytic cell and place them on an anode tray on the large-end operating surface of the electrolysis workshop for natural cooling. This method allows harmful gases released during the cooling process to be emitted unorganized throughout the electrolysis workshop, severely deteriorating the working environment for workers and failing to meet environmental protection requirements, while also posing a risk of burns. Second, setting up a dedicated residual electrode cooling area outside the electrolysis workshop and transporting the residual electrodes to this area for cooling. This method requires specialized vehicles to transfer the 900℃ residual electrodes from the electrolytic cell to the cooling area, increasing the cost of residual electrode transportation. Furthermore, residual electrode transportation requires additional high-temperature transport equipment (such as heat-resistant pallet trucks), and prolonged transportation increases fluoride emissions. Third, setting up residual electrode cooling boxes. After removal, the residual electrodes are quickly placed in a sealed cooling box, isolated from the outside environment, to slowly dissipate heat in a closed state, preventing the release of pollutants. Due to the limited volume of the cooling box, this method results in slow heat dissipation and a long waiting time. Additionally, after cooling, the residual electrodes need to be transported a second time to the residual electrode storage area, increasing transportation costs.

[0005] Therefore, in the aluminum electrolysis field, embedding an integrated intelligent anode storage facility that combines cooling, storage, and distribution within the electrolysis workshop can effectively and promptly transport replaced anodes to designated locations, efficiently collect and purify harmful gases released during the anode cooling process, reduce anode handling costs, maintain a good working environment for workers, and meet environmental protection requirements. Simultaneously, a new anode storage area can be set up near the electrolysis workshop, effectively saving anode transportation time and improving operational efficiency. Summary of the Invention

[0006] The purpose of this invention is to provide an intelligent embedded storage facility for anodes in an aluminum electrolysis workshop. This facility structure can save transportation time for new anodes, improve operational efficiency, and promptly and effectively collect and purify harmful gases released during the cooling process of residual anodes, reducing the cost of handling residual anodes and meeting environmental protection requirements.

[0007] The technical solution of the present invention is as follows: An intelligent embedded storage facility for anodes in an aluminum electrolysis workshop, comprising a closed residual electrode cooling area located at the end of the electrolysis workshop, a temporary residual electrode stacking area and a new anode stacking area set outside the corridor of the adjacent electrolysis workshop, a horizontal flue pipe set in the closed residual electrode cooling area, the end of the horizontal flue pipe being connected to an electrolysis flue gas purification system, automatic ground sliding rail lines set in the closed residual electrode cooling area, the temporary residual electrode stacking area and the new anode stacking area, a transfer robot set on the automatic ground sliding rail lines, and an automatic roller shutter door set at the entrance of the closed residual electrode cooling area.

[0008] In the aforementioned intelligent embedded storage workshop for the anode of an aluminum electrolysis plant, the enclosed residual electrode cooling zone is located on the wall near the electrolysis workshop, and several horizontal flue pipes are evenly arranged on the wall of the enclosed residual electrode cooling zone near the electrolysis workshop.

[0009] In the aforementioned intelligent embedded storage facility for anodes in an aluminum electrolysis workshop, when a temporary residual electrode storage area is set up outside the corridor, the temporary residual electrode storage area is located adjacent to and connected to one of the closed residual electrode cooling areas, and the temporary residual electrode storage area is also connected to the corridor; when two temporary residual electrode storage areas are set up outside the corridor, each temporary residual electrode storage area is located adjacent to and connected to one of the closed residual electrode cooling areas; the automatic floor sliding rail line in the closed residual electrode cooling area extends to the temporary residual electrode storage area connected to it.

[0010] In the aforementioned intelligent embedded storage facility for anodes in an aluminum electrolysis workshop, automatic roller shutters are installed at the connection points between the temporary residual electrode stacking area, the enclosed residual electrode cooling area, and the corridor.

[0011] In the aforementioned intelligent embedded storage facility for the anode of an aluminum electrolysis workshop, the temporary residual electrode stacking area, the enclosed residual electrode cooling area, and the automatic roller shutter door connected to them are all at the same horizontal level.

[0012] In the aforementioned intelligent embedded storage facility for the anode of an aluminum electrolysis workshop, the walls of the enclosed residual anode cooling zone are made of high-temperature resistant and insulating materials.

[0013] In the aforementioned intelligent embedded storage facility for anodes in an aluminum electrolysis workshop, the new anode stacking area is connected to a corridor, and an automatic roller shutter door is installed at the connection point.

[0014] The beneficial effects of this invention are as follows: Compared with the prior art, this invention adopts the above-mentioned technical solution, which allows the harmful gases released during the cooling process of the residual electrode to be collected by a horizontal flue pipe and treated by a flue gas purification system; the ground is laid with an automatic sliding rail line, which allows the anode and residual electrode to be transported by a transfer robot, thereby saving labor costs; a temporary storage area for residual electrodes is set up to facilitate the temporary placement of cooled residual electrodes, while a new anode storage area is set up to facilitate the use of new anodes; an automatic roller shutter door is set up to realize timely automatic opening and closing during the transportation of residual electrodes, avoiding the diffusion of harmful gases and reducing labor costs.

[0015] In summary, this invention can save transportation time for new anodes, improve operating efficiency, and collect and purify harmful gases released during the cooling process of residual anodes in a timely and effective manner, reduce the cost of transferring residual anodes, and meet environmental protection requirements. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of the present invention;

[0017] Figure 2 This is another structural schematic diagram of the present invention.

[0018] Attached reference numerals: 1-Electrolysis workshop, 2-Enclosed residual electrode cooling area, 3-Automatic roller shutter door, 4-Automatic sliding rail line, 5-Horizontal flue, 6-Temporary residual electrode storage area, 7-New anode storage area. Detailed Implementation

[0019] The present invention will be further described below with reference to the accompanying drawings and embodiments, but this should not be construed as limiting the present invention.

[0020] An embodiment of the present invention: An intelligent embedded storage facility for anodes in an aluminum electrolysis workshop includes a closed residual anode cooling zone 2 located at the end of the electrolysis workshop 1. A temporary residual anode stacking zone 6 and a new anode stacking zone 7 are set outside the corridor adjacent to the electrolysis workshop 1. A horizontal flue 5 is set in the closed residual anode cooling zone 2, and the tail end of the horizontal flue 5 is connected to an electrolysis flue gas purification system.

[0021] In this invention, the overhead crane places the removed residual electrode on a residual electrode tray at a designated location in the enclosed residual electrode cooling zone 2, and then transports it inside the enclosed residual electrode cooling zone 2 for cooling. Specifically, the residual electrode is transported to the gas collection port of the horizontal flue pipe 5 connected to the flue gas purification system, where it is unloaded. The gas collection port covers the high-temperature residual electrode, accelerating the delivery of harmful gases released during the residual electrode cooling process through the horizontal flue pipe 5 to the electrolysis flue gas purification system. The cooled residual electrode is then temporarily stored in the temporary residual electrode stacking area 6. The new anode stored in the new anode stacking area 7 is then transported to a designated location, and subsequently, the overhead crane hoists the new anode to the electrolytic cell where the anode needs to be replaced, completing the replacement of the new anode.

[0022] The enclosed residual electrode cooling area 2, the temporary residual electrode stacking area 6, and the new anode stacking area 7 are all equipped with automatic ground slide rails 4. Transfer robots are installed on the automatic ground slide rails 4. The transfer robots can transport hot residual electrodes or new anodes and can perform loading, transportation, and unloading operations along the automatic slide rails 4 under the control of the intelligent control program.

[0023] An automatic roller shutter door 3 is installed at the inlet of the enclosed residual electrode cooling zone 2 to prevent harmful gases from diffusing into the outside. At the same time, the door does not need to be opened and closed manually during the transportation of residual electrodes.

[0024] As shown in the figure, the enclosed residual electrode cooling zone 2 is set on the wall of the external space of the connecting corridor of the electrolysis workshop 1. Several horizontal smoke pipes 5 are evenly arranged on the wall of the enclosed residual electrode cooling zone 2 near the external space of the connecting corridor. The horizontal smoke pipes 5 are concentrated on one side, which is more convenient for installation. Moreover, the horizontal smoke pipes 5 are installed on the wall near the external space of the connecting corridor, so that the horizontal smoke pipes 5 only need a short distance to be led out to the outside.

[0025] like Figure 1 As shown, when only one temporary residual electrode storage area 6 is set up outside the corridor due to space limitations, this temporary residual electrode storage area 6 is located adjacent to one of the enclosed residual electrode cooling areas 2, and is also connected to the enclosed residual electrode cooling area 2. At this time, the automatic ground sliding rail line 4 in the adjacent enclosed residual electrode cooling area 2 extends into the connected temporary residual electrode storage area 6. The cooled residual electrodes in the enclosed residual electrode cooling area 2 adjacent to the temporary residual electrode storage area 6 can be directly transported to the residual electrode storage area 6 for temporary storage by a transfer robot along the automatic sliding rail line 4. At the same time, this temporary residual electrode storage area 6 is also connected to the corridor, while the cooled residual electrodes in the other enclosed residual electrode cooling area 2 are sent into the residual electrode storage area 6 for temporary storage through the entrance connected to the corridor.

[0026] like Figure 2As shown, when the space outside the corridor is large, two temporary residual electrode storage areas 6 can be set up outside the corridor. Each temporary residual electrode storage area 6 is set up next to and connected to one of the closed residual electrode cooling areas 2. The automatic ground slide rail line 4 in the closed residual electrode cooling area 2 extends to the temporary residual electrode storage area 6 connected to it. The residual electrodes cooled in the closed residual electrode cooling area 2 can be transported by the transfer robot along the automatic slide rail line 4 to the adjacent residual electrode storage area 6 for temporary storage, making the transfer more convenient.

[0027] Automatic roller shutter doors 3 are installed at the connection points between the temporary residual anode storage area 6, the enclosed residual anode cooling area 2, and the corridor. This prevents harmful gases from diffusing into the temporary residual anode storage area 6, and also eliminates the need for manual opening and closing of the doors during the transportation of new anodes.

[0028] The temporary residual electrode storage area 6, the enclosed residual electrode cooling area 2, and the automatic roller shutter door 3 connected to them are all at the same level on the ground, which makes it convenient to transport the residual electrodes.

[0029] The walls of the enclosed residual electrode cooling zone 2 are made of high-temperature resistant and insulating materials to improve safety protection.

[0030] The new anode storage area 7 is connected to the corridor to facilitate the transportation of new anodes. An automatic roller shutter door 3 is installed at the connection point to prevent harmful gases from spreading into the new anode storage area 7. At the same time, the door does not need to be opened and closed manually during the transportation of new anodes.

[0031] The complete workflow of this invention is as follows: An overhead crane places the removed residual electrodes onto a residual electrode tray at a designated location in the enclosed residual electrode cooling area 2. The residual electrode tray is transported through an automatic roller shutter door 3 to the enclosed electrode cooling area 2 and placed on a transfer robot on an automatic slide rail line 4. The transfer robot on the automatic slide rail line 4 loads and transports the residual electrodes to the gas collection port of the horizontal flue pipe 5 connected to the electrolysis flue gas purification system, and unloads the residual electrodes. The gas collection port covers the high-temperature residual electrodes, accelerating the transport of harmful gases released during the residual electrode cooling process through the horizontal flue pipe 5 to the electrolysis flue gas purification system. The cooled residual electrodes can be reloaded, transported, and stacked in a temporary residual electrode stacking area 6 via the transfer robot on the ground automatic slide rail line 4.

[0032] The intelligent control system controls the transfer robot to load the new anodes stored in the new anode stacking area 7. At the same time, the transfer robot is controlled to transport the new anodes along the automatic slide rail line 4 to the designated location. Then, the overhead crane lifts the new anodes to the electrolytic cell where the anodes need to be replaced, thus completing the replacement of the new anodes.

[0033] In the plant structure of this invention, an intelligent anode storage workshop is embedded at the end of the electrolysis workshop 1. This intelligent anode storage workshop includes a closed residual electrode cooling area 2, a new anode stacking area 7, and a temporary residual electrode stacking area 6. Specifically, two closed residual electrode cooling areas 2 are symmetrically arranged at the ends of the two electrolysis workshops 1. An automatic sliding rail line 4 and a horizontal flue pipe 5 are laid within the closed residual electrode cooling area 1. An intelligent control system controls a transfer robot to perform residual electrode transfer and transportation operations on the automatic sliding rail line 4. The horizontal flue pipe 5 connects to an electrolysis flue gas purification system, which systematically collects and purifies the flue gas released during the residual electrode cooling process. A temporary residual electrode stacking area 6 and a new anode stacking area 7 are set between the two closed residual electrode cooling areas 2. The automatic sliding rail line 4 runs from the residual electrode cooling area 2 to the temporary residual electrode stacking area 6, facilitating the transportation of cooled residual electrodes. Embedding the new anode stacking area 7 within the electrolysis workshop 1 facilitates the retrieval of new anodes, saving transportation costs. Simultaneously, the automatic sliding rail line 4 and the use of transfer robots reduce labor costs.

[0034] Therefore, any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this invention should be included within the scope of protection of this invention.

Claims

1. An aluminum electrolytic plant anode intelligent embedded warehouse plant, characterized in that: The enclosed residual electrode cooling area (2) is located at the end of the electrolysis workshop (1). A temporary residual electrode storage area (6) and a new anode storage area (7) are set outside the corridor of the adjacent electrolysis workshop (1). A horizontal flue (5) is set in the enclosed residual electrode cooling area (2). The end of the horizontal flue (5) is connected to the electrolysis flue gas purification system. A ground automatic sliding rail line (4) is set in the enclosed residual electrode cooling area (2), the temporary residual electrode storage area (6) and the new anode storage area (7). A transfer robot is set on the ground automatic sliding rail line (4). An automatic roller shutter door (3) is set at the entrance of the enclosed residual electrode cooling area (2).

2. The intelligent embedded anode storage plant of an aluminum electrolysis plant according to claim 1, characterized in that: The enclosed residual electrode cooling zone (2) is set on the wall of the electrolysis workshop (1), and several horizontal flue pipes (5) are evenly arranged on the wall of the enclosed residual electrode cooling zone (2) near the wall of the electrolysis workshop (1).

3. The intelligent embedded anode storage plant of an aluminum reduction plant according to claim 1, characterized in that: When a temporary residual electrode storage area (6) is set up outside the corridor, the temporary residual electrode storage area (6) is set up next to and connected to one of the closed residual electrode cooling areas (2), and the temporary residual electrode storage area (6) is also connected to the corridor; when two temporary residual electrode storage areas (6) are set up outside the corridor, each temporary residual electrode storage area (6) is set up next to and connected to one of the closed residual electrode cooling areas (2); the automatic ground sliding rail line (4) in the closed residual electrode cooling area (2) extends to the temporary residual electrode storage area (6) connected to it.

4. The intelligent embedded anode storage plant of an aluminum reduction plant according to claim 3, characterized in that: Automatic roller shutter doors (3) are provided at the connection points between the temporary residual electrode storage area (6), the enclosed residual electrode cooling area (2), and the corridor.

5. An aluminum potroom anode smart embedded warehousing plant according to claim 4, characterized in that: The temporary residual electrode storage area (6), the closed residual electrode cooling area (2), and the automatic roller shutter door (3) connected to them are all at the same horizontal level on the ground.

6. An aluminum potroom anode smart embedded warehousing plant according to claim 1, characterized in that: The walls of the enclosed residual electrode cooling zone (2) are made of high-temperature resistant and insulating materials.

7. An aluminum potroom anode smart embedded warehousing plant according to claim 1, characterized in that: The new anode stacking area (7) is connected to the corridor, and an automatic roller shutter door (3) is installed at the connection point.

Images