A preheating treatment device and electrolysis system for anode carbon blocks

By preheating the anode carbon block using a preheating treatment device, the problem of uneven thermal stress caused by the temperature difference between the anode carbon block and the electrolytic cell was solved, thereby improving the stability of the electrolysis process and the current efficiency.

CN224450875UActive Publication Date: 2026-07-03GUANGXI DEBAO BAIKUANG ALUMINUM CO +3
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
GUANGXI DEBAO BAIKUANG ALUMINUM CO
Filing Date
2025-07-07
Publication Date
2026-07-03

AI Technical Summary

Technical Problem

In the process of aluminum electrolysis, the temperature difference between the newly replaced anode carbon block and the electrolytic cell leads to uneven thermal stress, which affects the uniformity and stability of the electrolytic reaction, increases energy loss, and makes it prone to excessive oxidation and corrosion, resulting in reduced current efficiency.

Method used

A preheating treatment apparatus for anode carbon blocks is provided, including a preheating chamber furnace and a conveying mechanism. The anode carbon blocks are supported by a support structure and fuel is placed under a perforated plate for heating. Combined with a vent pipe and an auxiliary blower, airflow circulation is promoted to ensure uniform preheating of the anode carbon blocks.

Benefits of technology

It significantly reduces the temperature difference between the new anode carbon block and the environment inside the electrolytic cell, reduces the impact of thermal stress, improves the stability and current efficiency of the electrolysis process, and ensures the stable operation of the electrolysis system.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model provides a preheating treatment device and an electrolysis system for anode carbon blocks, relating to the field of heating equipment. The preheating treatment device for anode carbon blocks includes a preheating chamber and a conveying mechanism. The preheating chamber includes a furnace body and a perforated plate horizontally disposed within the furnace body. Support structures are respectively arranged on two opposite sides of the furnace body above the perforated plate. The conveying mechanism is used to transport the anode carbon blocks into the furnace body and place them above the support structures. The distance between the support structures on both opposite sides of the furnace body is less than the length of the anode carbon block, and the support structures are used to abut and support the anode carbon blocks. After preheating, the anode carbon blocks are transferred to the electrolysis system by the conveying mechanism, thereby ensuring the stable operation of the electrolysis system.
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Description

Technical Field

[0001] This utility model relates to the technical field of heating equipment, and more specifically, to a preheating treatment device and electrolysis system for prebaked anode carbon blocks to improve the current efficiency of aluminum electrolysis. Background Technology

[0002] In the electrolytic aluminum production process, voltage fluctuations often occur in the electrolytic cells after the anodes are replaced with new ones. This is because the temperature of the newly replaced anode carbon blocks is lower than the temperature inside the electrolytic cell, creating a significant temperature difference. This temperature difference can lead to uneven local thermal stress, affecting the uniformity and stability of the electrolytic reaction, resulting in increased energy loss, reduced current efficiency, and a higher risk of excessive oxidation, corrosion, and uneven current distribution during electrolysis. These issues further impact the normal operation and current efficiency of the electrolytic cell. Utility Model Content

[0003] The problem this invention solves is: how to effectively preheat the anode carbon block to ensure the stable operation of the electrolysis system.

[0004] To solve the above problems, this utility model provides a preheating treatment device and an electrolysis system for anode carbon blocks.

[0005] In a first aspect, this utility model provides a preheating treatment device for anode carbon blocks, including a preheating box furnace and a conveying mechanism. The preheating box furnace includes a furnace body and a perforated plate horizontally disposed within the furnace body. Supporting structures are respectively disposed on two opposite sides of the furnace body above the perforated plate. The conveying mechanism is used to transport the anode carbon blocks into the furnace body and place them above the supporting structures. The distance between the supporting structures on the two opposite sides of the furnace body is less than the length of the anode carbon blocks. The supporting structures are used to abut and support the anode carbon blocks.

[0006] Optionally, a combustion space for placing fuel is formed between the perforated plate and the anode carbon block.

[0007] Optionally, the preheating box furnace further includes a vent pipe, the perforated plate divides the furnace body into a first cavity and a second cavity, the support structure is located in the first cavity, and the vent pipe is located in the second cavity.

[0008] Optionally, the perforated plate is provided with ash collection holes and ventilation holes, the ash collection holes being provided corresponding to the combustion space, and the ventilation holes being connected to the ventilation pipe.

[0009] Optionally, the vent pipe includes a main air intake pipe and an air intake branch pipe connected to the main air intake pipe. The main air intake pipe is connected to the blower, and the air intake branch pipe is connected to the vent. The diameter of the main air intake pipe is larger than the diameter of the air intake branch pipe.

[0010] Optionally, a high-temperature resistant layer is cast onto the inner surface of the furnace body.

[0011] Optionally, the support structure is formed by a high-temperature resistant layer cast on the inner surface of the furnace body.

[0012] Optionally, the furnace body includes an openable and closable furnace door located above the support structure.

[0013] Optionally, the furnace body is provided with a feeding and observation port, and the feeding and observation port is covered with a window baffle.

[0014] Secondly, this utility model provides an electrolysis system for anode carbon blocks, including a preheating treatment device for anode carbon blocks as described above and an electrolytic cell. The conveying mechanism of the preheating treatment device for anode carbon blocks is used to convey the preheated anode carbon blocks to the electrolytic cell.

[0015] The beneficial effects of the preheating treatment device and electrolysis system for anode carbon blocks of this utility model are as follows: the anode carbon blocks to be preheated can be sent into the furnace body of the preheating box furnace through the conveying mechanism, and the anode carbon blocks can be placed on the support structure. Since the distance between the two support structures is less than the length of the anode carbon blocks, most of the anode carbon blocks, except for those in contact with the support structure, will be in a suspended state. Fuel can be placed between the perforated plate and the anode carbon blocks, so that the fuel can be fully burned and the heat of combustion can be fully applied to the anode carbon blocks, ensuring effective preheating of the anode carbon blocks. After preheating, the anode carbon blocks can be transferred to the electrolysis system through the conveying mechanism, thereby ensuring the stable operation of the electrolysis system. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the preheating treatment device for the anode carbon block in an embodiment of this utility model;

[0017] Figure 2 This is a three-dimensional structural diagram of the preheating treatment device for the anode carbon block in an embodiment of this utility model;

[0018] Figure 3 This is a partial three-dimensional structural diagram of the preheating treatment device for the anode carbon block in an embodiment of this utility model;

[0019] Figure 4 This is a partial three-dimensional structural diagram of the bottom of the preheating treatment device for the anode carbon block in an embodiment of this utility model;

[0020] Figure 5This is a schematic diagram of the electrolysis system in an embodiment of the present invention.

[0021] Explanation of reference numerals in the attached figures:

[0022] 1. Preheating box furnace; 11. Perforated plate; 111. Ash collection hole; 112. Ventilation hole; 12. Support structure; 13. Ventilation pipe; 14. Auxiliary blower; 15. Furnace door; 16. Feeding and observation port; 17. Window baffle; 18. Ash collection tray; 2. Conveying mechanism; 21. Moving structure; 3. Anode carbon block; 31. Anode guide rod; 4. Fuel; 5. Electrolytic cell. Detailed Implementation

[0023] To make the above-mentioned objects, features, and advantages of this utility model more apparent and understandable, specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. Although some embodiments of this utility model are shown in the drawings, it should be understood that this utility model can be implemented in various forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of this utility model. It should be understood that the drawings and embodiments of this utility model are for illustrative purposes only and are not intended to limit the scope of protection of this utility model.

[0024] The term "comprising" and its variations as used herein are open-ended, meaning "including but not limited to"; the term "based on" means "at least partially based on"; the term "one embodiment" means "at least one embodiment"; the term "another embodiment" means "at least one additional embodiment"; the term "some embodiments" means "at least some embodiments"; and the term "optionally" means "optional embodiments". Definitions of other terms will be given in the following description. It should be noted that the concepts of "first," "second," etc., mentioned in this utility model are only used to distinguish different devices, modules, or units, and are not used to limit the order of functions performed by these devices, modules, or units or their interdependencies.

[0025] It should be noted that the terms "one" and "multiple" used in this utility model are illustrative rather than restrictive. Those skilled in the art should understand that, unless otherwise expressly indicated in the context, they should be understood as "one or more".

[0026] To address the problems existing in the aforementioned related technologies, this utility model provides a preheating treatment device and electrolysis system for anode carbon blocks. By preheating the anode carbon blocks, the temperature difference between the new anode carbon blocks and the environment inside the electrolytic cell is significantly reduced, the impact of thermal stress is mitigated, and the stability of the electrolysis process is improved. Detailed descriptions are provided below with reference to specific embodiments.

[0027] Combination Figures 1 to 5As shown in the figure, the present invention provides a preheating treatment device for anode carbon blocks, including a preheating box furnace 1 and a conveying mechanism 2. The preheating box furnace 1 includes a furnace body and a perforated plate 11 horizontally arranged inside the furnace body. Supporting structures 12 are respectively arranged on two opposite sides of the furnace body above the perforated plate 11. The conveying mechanism 2 is used to transport the anode carbon blocks 3 into the furnace body and place them above the supporting structures 12. The distance between the supporting structures 12 on the two opposite sides of the furnace body is less than the length of the anode carbon blocks 3. The supporting structures 12 are used to abut and support the anode carbon blocks 3.

[0028] Specifically, fuel 4 can be placed on a perforated plate 11 inside the preheating furnace 1. Protruding support structures 12 are provided on opposite sides of the perforated plate 11. The distance between the two support structures 12 is less than the length of the anode carbon block 3. This arrangement prevents the anode carbon block 3 from falling from the support structures 12 onto the perforated plate 11. Support surfaces are provided on the top of each support structure 12, respectively for contacting and supporting the opposite sides of the bottom of the anode carbon block 3. When the anode carbon block 3 is placed inside the preheating furnace 1, both ends of the anode carbon block 3 are supported on the support structures 12, and the fuel 4 on the perforated plate 11 heats the anode carbon block 3 from below. An anode guide rod 31 is provided on the top of the anode carbon block 3 for the conveying mechanism 2 to hold and transport the anode carbon block 3. The preheating furnace 1 can be designed and manufactured according to the shape (e.g., cuboid, cylinder, etc.) and size of the anode carbon block 3. The internal space of the preheating furnace 1 must be larger than the anode carbon block 3 to ensure that the anode carbon block 3 can be smoothly placed in and removed. The conveying mechanism 2 can be a crane or other lifting equipment in the operating workshop. The dimensions inside the preheating box furnace 1 can be set to preheat one or more anode carbon blocks 3 simultaneously.

[0029] In this embodiment, the anode carbon block 3 to be preheated can be sent into the furnace body of the preheating box furnace 1 by the conveying mechanism 2, and the anode carbon block 3 can be placed on the support structure 12. Since the distance between the two support structures 12 is less than the length of the anode carbon block 3, most of the anode carbon block 3 will be suspended except for contact with the support structure 12. Fuel 4 can be placed between the perforated plate 11 and the anode carbon block 3, so that the fuel 4 can be fully burned and the heat of combustion can be fully applied to the anode carbon block 3, ensuring effective preheating of the anode carbon block 3. After preheating, it can be transferred to the electrolysis system by the conveying mechanism 2, thereby ensuring the stable operation of the electrolysis system.

[0030] Optionally, the top of the preheating box furnace 1 is set with an inclined structure, which can reduce the retention of hot air in the corners of the furnace body and make the hot air flow more evenly across the surface of the anode carbon block 3.

[0031] Optionally, an anode guide rod 31 is cast and fixed to the top of the anode carbon block 3 during manufacturing. The clamps of the lifting device of the conveying mechanism 2 can be fixedly connected to the anode guide rod 31 by mechanical locking or hydraulic pressure, thereby realizing the lifting and transportation of the anode carbon block 3. In the electrolytic cell, the anode guide rod 31 can be connected to the busbar to conduct current from the busbar into the anode carbon block. The anode guide rod 31 plays a conductive role, maintaining the electrolytic reaction.

[0032] Optionally, an opening may be provided at the top of the preheating chamber furnace 1 for the anode guide rod 31 to pass through.

[0033] Optionally, combined Figure 1 As shown, a combustion space for placing fuel 4 is formed between the perforated plate 11 and the anode carbon block 3.

[0034] In this optional embodiment, fuel 4 is placed between the perforated plate 11 and the anode carbon block 3, so that the fuel 4 can burn completely and the heat of combustion can be fully applied to the anode carbon block 3 above.

[0035] Specifically, fuel 4 is evenly distributed within the furnace to ensure uniform heating of the anode carbon block 3. Fuel 4 can also be waste carbon blocks, achieving the effect of waste recycling.

[0036] Optionally, combined Figure 4 As shown, the preheating box furnace 1 also includes a vent pipe 13, a perforated plate 11 that divides the furnace body into a first cavity and a second cavity, a support structure 12 located in the first cavity, and a vent pipe 13 located in the second cavity.

[0037] Specifically, the vent pipe 13 delivers gas from the outside into the first cavity through the perforated plate 11.

[0038] In this optional embodiment, the vent pipe 13 located in the second chamber can supply combustion air into the first chamber, thereby promoting airflow circulation and rapidly distributing air around the fuel 4, enhancing the combustion efficiency of the fuel 4 and ensuring its complete combustion. Forced airflow circulation can eliminate temperature dead zones in the first chamber, uniformly raising the preheating temperature of the anode carbon block 3, while accelerating hot gas convection and shortening the preheating time.

[0039] Optionally, combined Figures 3 to 4 As shown, the perforated plate 11 is provided with ash collection holes 111 and ventilation holes 112. The ash collection holes 111 are provided in accordance with the combustion space, and the ventilation holes 112 are connected to the ventilation pipe 13.

[0040] In this optional embodiment, the ash collection hole 111 allows debris and other impurities generated by the fuel 4 during preheating in the combustion space to fall automatically by gravity, preventing them from accumulating on the perforated plate 11 of the preheating chamber furnace 1, which would affect heat transfer efficiency or airflow circulation. This ensures the perforated plate 11 is clean, improves the combustion efficiency of the fuel 4, and ensures complete combustion. The vent pipe 13 delivers combustion air into the first cavity through the vent hole 112, thereby promoting airflow circulation and rapidly distributing air around the fuel 4, enhancing the combustion efficiency of the fuel 4 and ensuring complete combustion.

[0041] Specifically, multiple ventilation holes 112 can be evenly spaced on the perforated plate 11 to ensure uniform air intake. The fuel 4 at different positions on the perforated plate 11 can burn evenly, so that the temperature in the first cavity can be raised evenly, thereby raising the preheating temperature of the anode carbon block 3 evenly.

[0042] Specifically, the perforated plate 11 can be provided with multiple ash-falling holes 111 at equal intervals, so that the debris and other impurities generated by the fuel 4 can fall fully into the second cavity, so that the fuel 4 at different positions on the perforated plate 11 can burn evenly, and so that the preheating temperature of the anode carbon block 3 can be raised evenly.

[0043] Specifically, in combination Figure 1 As shown, an ash collection tray 18 can be installed below the second cavity of the preheating box furnace 1, and the vertical projection of the ash discharge hole 111 falls within the range of the ash collection tray 18. The lower ash collection tray 18 can be easily disassembled and cleaned, which can improve maintenance efficiency compared to manual cleaning, and can effectively prevent debris from clogging the fuel 4 or affecting the airflow circulation, ensuring the cleanliness of the furnace interior of the preheating box furnace 1, extending the service life of the equipment, and reducing maintenance costs.

[0044] Optionally, combined Figure 1 and Figure 4 As shown, the vent pipe 13 includes an air intake main pipe and an air intake branch pipe connected to the air intake main pipe. The air intake main pipe is connected to the blower 14, and the air intake branch pipe is connected to the vent 112. The diameter of the air intake main pipe is larger than the diameter of the air intake branch pipe.

[0045] Specifically, the end of the vent pipe 13 is inserted into the vent hole 112, so that the gas in the vent pipe 13 is completely transported to the first cavity through the vent hole, thereby increasing the gas volume and airflow speed, accelerating hot gas convection, and shortening the preheating time.

[0046] In this optional embodiment, the vent holes 112 on the perforated plate 11, in conjunction with the blower 14, can deliver combustion air into the first cavity or promote airflow circulation. The diameter of the main intake pipe is larger than that of the branch intake pipe. The vent pipe 13, which tapers towards the vent holes 112, can maintain and pressurize the airflow by decreasing its diameter, thereby increasing the airflow velocity and ensuring that the air is evenly distributed around the fuel 4, thus enhancing the combustion efficiency of the fuel 4. Forced airflow circulation can eliminate temperature dead zones in the furnace, ensuring a uniform increase in the preheating temperature of the anode carbon block 3. At the same time, it accelerates hot gas convection, shortens the preheating time, and the tapered structure reduces airflow resistance, achieving high efficiency and energy saving.

[0047] Optionally, a high-temperature resistant layer is cast onto the inner surface of the furnace body.

[0048] Specifically, the high-temperature resistant layer is formed by casting with ladle refractory material. The ladle refractory material contains Al. z 0. Kaolin, binder and binder. The preheating box furnace 1 uses steel plates and channel steel as the furnace body frame. The refractory material is poured into the inner surface of the furnace body of the preheating box furnace 1 and hardened after 12 hours to form a high temperature resistant layer.

[0049] In this optional implementation, steel plates and channel steel are used as the furnace body frame to cast ladle refractory. After hardening, a high-strength, high-temperature resistant structure is formed, which is suitable for high-temperature environments and improves thermal insulation performance, reducing heat loss. The combination of ladle refractory and metal frame can prevent material cracking or falling off at high temperatures, extending the service life of the equipment.

[0050] Optionally, the support structure 12 is formed by a high-temperature resistant layer cast on the inner surface of the furnace body.

[0051] In this optional implementation, the support structure 12 is directly formed by the high-temperature resistant layer cast on the inner surface of the furnace body, without the need for separate processing, thus saving manufacturing costs.

[0052] Optionally, combined Figure 2 As shown, the furnace body includes an openable furnace door 15, which is located above the support structure 12.

[0053] Specifically, the furnace door 15 is rotatably mounted on the side of the preheating box furnace 1. The furnace door 15 can be formed using steel plate, and a high-temperature resistant layer is formed by casting refractory material onto the surface of the steel plate facing the interior of the furnace body. The furnace door 15 and the furnace body adopt the same high-temperature resistant layer design simultaneously to ensure overall sealing and insulation, reduce energy consumption, and improve preheating efficiency.

[0054] In this optional implementation, the thickness of the furnace door 15 can be designed to be less than the thickness of the support structure 12, leaving a support surface above the two support structures 12 for contact with the opposite sides of the bottom of the anode carbon block 3, thus stably supporting the anode carbon block 3. After the anode carbon block 3 enters the first cavity, it can directly rest on the support surface of the support structure 12, reducing operational safety risks. Furthermore, the side walls of the furnace body on opposite sides serve as support structures 12 to stably support the anode carbon block 3, maintaining a reasonable distance between the anode carbon block 3 and the fuel 4 at the bottom, ensuring uniform heating of the fuel 4 below the anode carbon block 3. The internal space of the preheating box furnace 1 is adapted to the shape and size of the anode carbon block 3, facilitating loading and unloading. The fuel 4 can be burning carbon blocks or waste carbon blocks, achieving uniform heating and recycling waste carbon blocks, reducing costs. This structural design ensures uniform heating of the anode carbon block 3, improving preheating efficiency and laying the foundation for improving the current efficiency of electrolytic aluminum.

[0055] Optionally, the furnace body is provided with a feeding and observation port 16, and the feeding and observation port 16 is covered with a window baffle 17.

[0056] Specifically, the feeding and observation ports 16 and the support structure 12 are respectively located on different sides of the preheating furnace 1. The feeding and observation ports 16 can be arranged on the two side walls adjacent to the furnace door 15. The feeding and observation ports 16 can be positioned opposite the fuel 4 for adding fuel 4 into the furnace, and can also be used to measure and observe the temperature at the bottom of the anode carbon block 3 in the first chamber via infrared temperature measurement equipment. The preheating process ends when the preset temperature is reached.

[0057] Specifically, in combination Figure 2 As shown, a raised limiting structure is provided on the preheating furnace 1 below the feeding and observation port 16 to place and limit the removable window baffle 17. The raised limiting structure below the feeding and observation port 16 can stably support the window baffle 17, preventing the window baffle 17 from shifting at high temperatures, causing hot air leakage or debris to fall in. At the same time, it facilitates the disassembly and maintenance of the window baffle 17, ensuring the sealing and safety of the equipment operation.

[0058] Specifically, the window baffle 17 set at the feeding and observation port 16 can be made of transparent material to facilitate observation of the temperature of the anode carbon block 3 in the first cavity.

[0059] In this optional implementation, the feeding and observation port 16 allows for precise addition of fuel 4 without opening the furnace door 15, avoiding heat loss caused by frequent opening of the furnace door 15. The feeding and observation port 16 is aligned with the fuel 4 to ensure efficient addition. The feeding and observation port 16 can be a transparent window baffle 17, which, in conjunction with an infrared temperature measuring device, can monitor the bottom temperature of the anode carbon block 3 in real time. Preheating is terminated promptly when the preset temperature is reached, preventing overheating and improving preheating accuracy.

[0060] Optionally, combined Figure 5 As shown, the conveying mechanism 2 includes a moving structure 21, and an anode guide rod 31 is provided on the anode carbon block 3. The moving structure 21 moves the anode carbon block 3 by clamping the anode guide rod 31.

[0061] In this optional embodiment, the anode guide rod 31 is located on the anode carbon block 3. The anode carbon block 3 is moved by the moving structure 21 holding the anode guide rod 31, and the anode carbon block 3 to be preheated is sent into the furnace body of the preheating box furnace 1. The anode carbon block 3 can be placed on the support structure 12. After preheating, the anode carbon block 3 can be moved by the moving structure 21 holding the anode guide rod 31 to transfer the anode carbon block 3 to the electrolysis system, thereby ensuring the stable operation of the electrolysis system.

[0062] Specifically, the transport mechanism 2 can be a crane or other lifting equipment in the operating workshop. For example, during use, fuel 4 is added through the furnace door 15 and ignited. Then, the crane pushes the new anode carbon block 3 from the furnace door 15 onto the support structure 12 inside the first cavity of the preheating furnace 1. The furnace door 15 is closed, and the auxiliary blower is started to assist in the combustion of fuel 4. After roasting for about 55-60 minutes, fuel 4 is added through the feeding and observation port 16, and the temperature of the anode carbon block 3 is observed and measured. When the temperature of the new anode carbon block 3 reaches 260-280°C, it is then lifted by the crane to the electrolytic cell 5.

[0063] Combination Figure 5 As shown, another embodiment of the present invention provides an electrolysis system for an anode carbon block, including an anode carbon block preheating treatment device as described above and an electrolytic cell 5. The conveying mechanism 2 of the anode carbon block preheating treatment device is used to convey the preheated anode carbon block 3 to the electrolytic cell 5.

[0064] In this embodiment, the moving structure 21 of the conveying mechanism 2 is provided with a clamp at its end, and the anode guide rod 31 is connected in sequence through the clamp to realize the conveying of the anode carbon block 3 between the preheating treatment device of the anode carbon block 3 and the electrolytic cell 5.

[0065] When the preheated anode carbon block 3 enters the electrolytic cell 5, it will have superior conductivity, thermal stability, oxidation resistance, corrosion resistance and uniformity, thus ensuring the stable operation of the electrolysis system.

[0066] The electrolysis system for anode carbon blocks in this embodiment has the same beneficial effects over the prior art as the preheating treatment device for anode carbon blocks described above, and will not be repeated here.

[0067] Although the present invention has been disclosed above, its protection scope is not limited thereto. Those skilled in the art can make various changes and modifications without departing from the spirit and scope of the present invention, and all such changes and modifications will fall within the protection scope of the present invention.

Claims

1. An apparatus for preheating anodes, characterized in that, The furnace includes a preheating box furnace (1) and a conveying mechanism (2). The preheating box furnace (1) includes a furnace body and a perforated plate (11) horizontally arranged inside the furnace body. Supporting structures (12) are respectively arranged on two opposite sides of the furnace body above the perforated plate (11). The conveying mechanism (2) is used to transport the anode carbon block (3) into the furnace body and place it above the supporting structure (12). The distance between the supporting structures (12) on the two opposite sides of the furnace body is less than the length of the anode carbon block (3). The supporting structure (12) is used to abut and support the anode carbon block (3).

2. The preheating device for anode carbon blocks according to claim 1, characterized in that, A combustion space for placing fuel is formed between the perforated plate (11) and the anode carbon block (3).

3. The apparatus for preheating anodes according to claim 2, characterized in that, The preheating box furnace (1) also includes a vent pipe (13), the hollow plate (11) divides the furnace body into a first cavity and a second cavity, the support structure (12) is located in the first cavity, and the vent pipe (13) is located in the second cavity.

4. The apparatus for preheating an anode carbon block according to claim 3, wherein The perforated plate (11) is provided with ash collection holes (111) and ventilation holes (112). The ash collection holes (111) are provided in correspondence with the combustion space, and the ventilation holes (112) are connected to the ventilation pipe (13).

5. The apparatus for preheating anodes according to claim 4, characterized in that, The ventilation pipe (13) includes a main intake pipe and an intake branch pipe connected to the main intake pipe. The main intake pipe is connected to the blower (14), and the intake branch pipe is connected to the ventilation hole (112). The diameter of the main intake pipe is larger than the diameter of the intake branch pipe.

6. The apparatus for preheating an anode carbon block according to claim 1, wherein The inner surface of the furnace body is coated with a high-temperature resistant layer.

7. The apparatus for preheating anodes according to claim 6, characterized in that, The supporting structure (12) is formed by a high-temperature resistant layer cast on the inner surface of the furnace body.

8. The apparatus for preheating an anode carbon block according to claim 7, wherein The furnace body includes an openable furnace door (15) located above the support structure (12).

9. The apparatus for preheating an anode carbon block according to claim 1, wherein The furnace body is provided with a feeding and observation port (16), and the feeding and observation port (16) is covered with a window baffle (17).

10. An electrolysis system of anodes of carbon blocks, characterized in that, The device includes a preheating treatment apparatus for anode carbon blocks as described in any one of claims 1-9 and an electrolytic cell (5), wherein the conveying mechanism (2) of the preheating treatment apparatus for anode carbon blocks is used to convey the preheated anode carbon blocks (3) to the electrolytic cell (5).