Ultrahigh-temperature-resistant furnace wall structure and high-temperature continuous graphitization furnace

Abstract

The utility model provides an ultrahigh-temperature-resistant furnace wall structure and a high-temperature continuous graphitization furnace. The ultrahigh-temperature-resistant furnace wall structure comprises a carbon fiber porous layer, a stacking layer, a heat preservation layer and a protective atmosphere assembly, and a stacking channel between the carbon fiber porous layer and the heat preservation layer is filled with the stacking layer; the protective atmosphere assembly comprises a protective atmosphere source, a protective atmosphere pipeline and an air inlet pipeline which are communicated in sequence, the air inlet pipeline penetrates through the heat preservation layer and abuts against the carbon fiber porous layer, and the air inlet pipeline is further provided with a side wall outlet communicated with the stacking channel; a plurality of mutually communicated air hole channels are formed in the carbon fiber porous layer, the air hole channels are communicated with the stacking channel and the air inlet pipeline, and the air outlet ends of the air hole channels are arranged on the side, away from the stacking channel, of the carbon fiber porous layer. The gaps of the stacked layers can reduce heat and reduce the heat resistance requirement of the heat preservation layer, the protective gas forms an air cushion protective layer on the surface of the carbon fiber porous layer, oxidation of the carbon fiber porous layer is reduced, and the service life of the carbon fiber porous layer is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of graphitization, in particular to an ultra-high temperature resistant furnace wall structure and a high-temperature continuous graphitization furnace. Background Art

[0002] With the widespread application of lithium batteries, the demand for artificial graphite as anode material for lithium batteries is also increasing day by day. Common carbonaceous materials need to be above 2700℃ to undergo the graphitization and crystallization process, and carbonaceous materials will gasify all other impurities other than carbon elements at ultra-high temperatures, thereby producing artificial graphite with good crystallinity and low impurity content.

[0003] During the graphitization process of carbonaceous materials, the high temperature zone of the continuous graphitization furnace requires an insulation structure that can withstand temperatures of 2700°C and above. The insulation structure is required to have a long service life while ensuring low heat loss. The insulation structure includes a high temperature resistant layer and a multi-layer insulation layer. The high temperature resistant layer needs to continuously pass the protective gas into the continuous graphitization furnace so that the surface of the high temperature resistant layer in the high temperature zone is covered with protective gas, thereby reducing the oxygen content and reducing the oxidation loss of the high temperature resistant layer. However, when the protective gas covers the surface of the high temperature resistant layer unevenly, there is a problem that the high temperature resistant layer is easily oxidized, which leads to a reduction in the service life of the high temperature resistant layer. Utility Model Content

[0004] The utility model aims to overcome the shortcomings of the prior art and provide an ultra-high temperature resistant furnace wall structure and a high temperature continuous graphitization furnace which can reduce heat conduction and loss and reduce oxidation.

[0005] The purpose of this utility model is achieved through the following technical solutions:

[0006] An ultra-high temperature resistant furnace wall structure, comprising a carbon fiber porous layer, a stacking layer, a thermal insulation layer and a protective atmosphere component, wherein a stacking channel is provided between the carbon fiber porous layer and the thermal insulation layer, and the stacking layer is filled in the stacking channel;

[0007] The thermal insulation layer is provided with an installation channel, and the installation channel is connected to the stacking channel. The protective atmosphere component includes a protective atmosphere source, a protective atmosphere pipeline and an air intake pipeline. The air intake pipeline is arranged in the installation channel, one end of the protective atmosphere pipeline is connected to the protective atmosphere source, and the other end of the protective atmosphere pipeline is connected to the air intake end of the air intake pipeline. The air outlet end of the air intake pipeline abuts against the carbon fiber porous layer. The air intake pipeline is also provided with a side wall outlet, and the side wall outlet is connected to the stacking channel.

[0008] The carbon fiber porous layer is provided with pore channels, the number of the pore channels is multiple, the multiple pore channels are interconnected, the air inlet ends of several of the pore channels are connected to the stacking channel, the air inlet ends of several of the pore channels are connected to the air outlet ends of the air inlet pipe, and the air outlet ends of the multiple pore channels are arranged on the side of the carbon fiber porous layer away from the stacking channel.

[0009] In one embodiment, the porous carbon fiber layer includes a first carbon fiber and a second carbon fiber, the first carbon fiber and the second carbon fiber are interlaced and woven, and a plurality of pore channels are formed between the first carbon fiber and the second carbon fiber.

[0010] In one embodiment, there are multiple side wall outlets, and the multiple side wall outlets are spaced apart in the air intake duct.

[0011] In one embodiment, the ultra-high temperature resistant furnace wall structure also includes a graphite nail, the carbon fiber porous layer is provided with a fixed through hole, the graphite nail is passed through the fixed through hole, one end of the graphite nail is connected to the insulation layer, and the other end of the graphite nail abuts against the carbon fiber porous layer.

[0012] In one embodiment, the thermal insulation layer includes a high-temperature support layer and a lightweight protective layer. The high-temperature support layer is arranged on the side of the stacking layer away from the carbon fiber porous layer, and the high-temperature support layer is provided with a first air passage. The lightweight protective layer is arranged on the side of the high-temperature support layer away from the stacking layer, and the lightweight protective layer is provided with a second air passage. The first air passage is connected to the second air passage to form the installation channel.

[0013] In one embodiment, the protective atmosphere component also includes a fixing part, which is connected to the outer wall of the air inlet pipe. A fixing groove is opened on the side of the high-temperature support layer away from the stacking layer. The fixing groove is respectively connected to the first air passage and the second air passage, and the fixing part is installed in the fixing groove.

[0014] In one of the embodiments, the fixing groove is a conical structure, and the fixing piece is adapted to be embedded in the fixing groove.

[0015] In one embodiment, the thermal insulation layer further includes a heat insulating layer, and the heat insulating layer is coated on the outer peripheral wall of the lightweight protective layer.

[0016] In one embodiment, there are multiple air inlet pipes, installation channels and protective atmosphere pipes, each of the protective atmosphere pipes is passed through each of the installation channels, each of the protective atmosphere pipes is connected to each of the protective atmosphere pipes, and multiple protective atmosphere pipes are connected to the protective atmosphere source.

[0017] A high-temperature continuous graphitization furnace comprises the ultra-high temperature resistant furnace wall structure described in any one of the above embodiments.

[0018] Compared with the prior art, the utility model has at least the following advantages:

[0019] 1. The ultra-high temperature resistant furnace wall structure and the high temperature continuous graphitization furnace described above fill the stacking channel with protective gas through the air inlet pipe, and the protective gas covers the surface of the stacking layer, thereby reducing the oxidation loss of the stacking layer. The stacking layer fills the gaps in the stacking channel to reduce heat conduction, thereby reducing heat and reducing the heat resistance requirements and cost of the insulation layer;

[0020] 2. When the protective gas flows into the multiple pore channels of the carbon fiber porous layer, the gas outlet ends of the multiple pore channels are evenly distributed on the surface of the carbon fiber porous layer, so that the protective gas forms an air cushion protective layer on the surface of the carbon fiber porous layer, reducing the oxidation loss of the carbon fiber porous layer, thereby improving the service life of the carbon fiber porous layer.

[0021] 3. The fixing groove is installed in the fixing part, so that the connection strength between the air intake pipe connected by the fixing part and the high-temperature support layer and the lightweight protective layer is improved, thereby preventing the air intake pipe from loosening. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0023] Figure 1 This is a structural schematic diagram of an ultra-high temperature resistant furnace wall structure according to an embodiment;

[0024] Figure 2 for Figure 1 A partial enlarged view of the ultra-high temperature resistant furnace wall structure at position A is shown;

[0025] Figure 3 for Figure 1 Schematic diagram of the structure of the carbon fiber porous layer shown.

[0026] Figure markings: 10-ultra-high temperature resistant furnace wall structure; 100-carbon fiber porous layer; 110-first carbon fiber; 120-second carbon fiber; 101-pore channel; 102-fixed through hole; 200-stacked layer; 201-stacking channel; 300-insulation layer; 301-installation channel; 310-high temperature support layer; 3101-first air passage; 3102-fixed groove; 320-lightweight protective layer; 3201-second air passage; 330-insulation layer; 400-protective atmosphere component; 410-protective atmosphere source; 420-protective atmosphere duct; 430-air inlet duct; 4301-side wall outlet; 440-fixing piece; 500-graphite nail; 600-air cushion protective layer. DETAILED DESCRIPTION

[0027] In order to facilitate the understanding of the present invention, the present invention will be described more comprehensively with reference to the relevant drawings. The drawings provide preferred embodiments of the present invention. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present invention more thoroughly and comprehensively understood.

[0028] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only and do not represent the only implementation method.

[0029] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art in the technical field of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0030] In order to better understand the technical solutions and beneficial effects of the present application, the present application is further described in detail below in conjunction with specific embodiments:

[0031] like Figure 1 and Figure 2As shown, an ultra-high temperature resistant furnace wall structure 10 of an embodiment includes a carbon fiber porous layer 100, a stacking layer 200, an insulation layer 300 and a protective atmosphere component 400. A stacking channel 201 is opened between the carbon fiber porous layer 100 and the insulation layer 300. The stacking layer 200 is filled in the stacking channel 201. The stacking layer 200 is a lightweight carbon material, and there are a large number of gaps when the stacking channel 201 is filled. The thermal insulation layer 300 is provided with an installation channel 301, and the installation channel 301 is connected to the stacking channel 201. The protective atmosphere component 400 includes a protective atmosphere source 410, a protective atmosphere pipe 420 and an air inlet pipe 430. The air inlet pipe 430 is arranged in the installation channel 301. One end of the protective atmosphere pipe 420 is connected to the protective atmosphere source 410, and the other end of the protective atmosphere pipe 420 is connected to the air inlet end of the air inlet pipe 430. The air outlet end of the air inlet pipe 430 abuts against the carbon fiber porous layer 100. The air inlet pipe 430 is also provided with a side wall outlet 4301, and the side wall outlet 4301 is connected to the stacking channel 201. The protective atmosphere source 410 controls the protective atmosphere of different pressures and flows to continuously enter the protective atmosphere pipe 420. The protective atmosphere can be a protective gas such as nitrogen and argon.

[0032] Furthermore, a pore channel 101 is opened in the carbon fiber porous layer 100, and the number of the pore channels 101 is multiple, and the multiple pore channels 101 are interconnected. The protective gas enters the multiple pore channels 101 and flows. The air inlet ends of the multiple pore channels 101 are respectively connected to the stacking channel 201, and the air outlet ends of the multiple pore channels 101 are arranged on the side of the carbon fiber porous layer 100 away from the stacking channel 201. After entering the multiple pore channels 101, the protective gas flows out evenly from the surface of the carbon fiber porous layer 100.

[0033] In this embodiment, the protective atmosphere source 410 continuously passes the protective gas into the air inlet pipe 420, and the protective gas enters the air inlet pipe 430 through the protective atmosphere pipe 420. The protective gas in the air inlet pipe 430 can enter the pore channel 101 from the outlet end of the air inlet pipe 430, and the protective gas in the air inlet pipe 430 can also enter the stacking channel 201 from the side wall outlet 4301. After passing through the stacking channel 201, the protective gas enters the pore channel 101, so that the pore channel 101 is filled with protective gas, and the outlet end of the pore channel 101 uniformly distributed on the surface of the carbon fiber porous layer 100 continuously gushes out protective gas, so that the protective gas forms an air cushion protective layer 600 on the surface of the carbon fiber porous layer 100. In the production process of high-temperature continuous graphitization, the air cushion protective layer 600 of the protective gas can reduce the contact between oxygen and the stacking layer 200 and the carbon fiber porous layer 100, thereby reducing the oxidation of the stacking layer 200 and the carbon fiber porous layer 100. The heat passes through the carbon fiber porous layer 100, the stacking layer 200 and the thermal insulation layer 300 in sequence. The gaps in the stacking layer 200 can reduce heat conduction, so that the thermal insulation layer 300 can be insulated with traditional temperature-resistant materials.

[0034] The above-mentioned ultra-high temperature resistant furnace wall structure 10 fills the stacking channel 201 with protective gas through the air inlet pipe 430, and the protective gas covers the surface of the stacking layer 200, reducing the oxidation loss of the stacking layer 200. The gaps in the stacking channel 201 filled by the stacking layer 200 can reduce heat conduction, thereby reducing heat and reducing the heat resistance requirements and costs of the insulation layer 300; when the protective gas flows into the multiple pore channels 101 of the carbon fiber porous layer 100, the outlet ends of the multiple pore channels 101 are evenly distributed on the surface of the carbon fiber porous layer 100, so that the protective gas forms an air cushion protective layer 600 on the surface of the carbon fiber porous layer 100, reducing the oxidation loss of the carbon fiber porous layer 100, thereby improving the service life of the carbon fiber porous layer 100.

[0035] like Figure 3 As shown, in one embodiment, the carbon fiber porous layer 100 includes a first carbon fiber 110 and a second carbon fiber 120, the first carbon fiber 110 and the second carbon fiber 120 are interlaced and woven, and a plurality of pore channels 101 are formed between the first carbon fiber 110 and the second carbon fiber 120. In this embodiment, by weaving the first carbon fiber 110 and the second carbon fiber 120, a large number of gaps are formed between the first carbon fiber 110 and the second carbon fiber 120 to form a plurality of mutually connected pore channels 101, and when the protective gas enters, it can quickly pass through the plurality of pore channels 101, and the protective gas forms a stable air cushion protective layer 600 on the surface of the carbon fiber porous layer 100, thereby reducing the oxidation loss of the first carbon fiber 110 and the second carbon fiber 120.

[0036] In one embodiment, the carbon fiber porous layer 100 may also be a high-strength carbon felt with a porous structure. In this embodiment, after the protective gas enters the multiple pore channels 101 in the high-strength carbon felt with a porous structure, the protective gas flows out evenly from the pore channels 101 on the surface of the high-strength carbon felt, so that a stable air cushion protective layer 600 is formed on the surface of the high-strength carbon felt, reducing the oxidation of the high-strength carbon felt and increasing the service life of the high-strength carbon felt.

[0037] like Figure 2 As shown, in one embodiment, the number of the side wall outlets 4301 is multiple, and the multiple side wall outlets 4301 are arranged at intervals in the air inlet duct 430. In this embodiment, the multiple side wall outlets 4301 can increase the flow rate of the protective gas flowing into the stack channel 201, speed up the speed at which the protective gas fills the stack channel 201, and make the protective gas evenly diffuse in the stack channel 201.

[0038] like Figure 1 As shown, in one embodiment, the ultra-high temperature resistant furnace wall structure 10 further includes a graphite nail 500, and the carbon fiber porous layer 100 is provided with a fixing through hole 102, the graphite nail 500 is penetrated through the fixing through hole 102, one end of the graphite nail 500 is connected to the insulation layer 300, and the other end of the graphite nail 500 is abutted against the carbon fiber porous layer 100. In this embodiment, one end of the graphite nail 500 is embedded in the insulation layer 300 by anchoring, and the graphite nail 500 increases the supporting strength of the carbon fiber porous layer 100 to the stacking layer 200, thereby improving the durability of the carbon fiber porous layer 100.

[0039] like Figure 1 As shown, in one embodiment, the thermal insulation layer 300 includes a high-temperature support layer 310 and a lightweight protective layer 320. The high-temperature support layer 310 is arranged on the side of the stacking layer 200 away from the carbon fiber porous layer 100. The high-temperature support layer 310 is provided with a first air passage 3101. The lightweight protective layer 320 is arranged on the side of the high-temperature support layer 310 away from the stacking layer 200. The lightweight protective layer 320 is provided with a second air passage 3201. The first air passage 3101 is connected to the second air passage 3201 to form an installation channel 301. In this embodiment, the high-temperature support layer 310 can use high-temperature resistant high-density brick materials such as magnesium bricks, corundum bricks or spinel bricks, and the lightweight protective layer 320 can be made of heat-resistant materials such as high-temperature resistant cotton blankets or high-temperature resistant lightweight insulation bricks. The temperature of the heat decreases after passing through the stacking layer 200. The high-temperature support layer 310 can withstand the high temperature of the stacking layer 200 and support one side of the stacking layer 200. The temperature of the heat is further reduced after passing through the high-temperature support layer 310, thereby increasing the service life of the lightweight protective layer 320. The lightweight protective layer 320 effectively isolates heat, and the ultra-high temperature resistant furnace wall structure 10 reduces heat loss.

[0040] like Figure 1As shown, in one embodiment, the protective atmosphere component 400 further includes a fixing member 440, which is connected to the outer peripheral wall of the air intake pipe 430, and a fixing groove 3102 is provided on the side of the high temperature support layer 310 away from the stacking layer 200, and the fixing groove 3102 is respectively connected to the first air passage 3101 and the second air passage 3201, and the fixing member 440 is installed in the fixing groove 3102. In this embodiment, the air intake pipe 430 can be made of high temperature resistant zirconium oxide material, the fixing member 440 and the air intake pipe 430 are made of the same material, the fixing member 440 and the air intake pipe 430 are welded together, and the fixing member 440 is installed between the high temperature support layer 310 and the lightweight protective layer 320, so that the connection strength between the air intake pipe 430 and the high temperature support layer 310 and the lightweight protective layer 320 is improved, and the air intake pipe 430 is not easy to loosen.

[0041] like Figure 1 As shown, in one embodiment, the fixing groove 3102 is a conical structure, and the fixing member 440 is adapted to be embedded in the fixing groove 3102. In this embodiment, the fixing member 440 is adapted to the fixing groove 3102 to form a fixing member 440 with a conical structure. When the conical fixing member 440 is installed in the conical fixing groove 3102, the conical surface of the fixing member 440 blocks the protective gas from penetrating from the stacking channel 201 into the high-temperature support layer 310, thereby increasing the sealing performance and preventing the waste of the protective gas.

[0042] like Figure 1 As shown, in one embodiment, the thermal insulation layer 300 further includes a heat insulating layer 330, and the heat insulating layer 330 is coated on the outer surface of the lightweight protective layer 320. In this embodiment, the heat insulating layer 330 is composed of a lightweight thermal insulation material with a high density. When the heat insulating layer 330 wraps the thermal insulation layer 300, the heat insulating layer 330 can prevent the hot air in the thermal insulation layer 300 from directly contacting the external air, thereby further reducing heat loss.

[0043] like Figure 1 As shown, in one embodiment, the number of the air intake pipe 430, the installation channel 301 and the protective atmosphere pipe 420 is multiple, each protective atmosphere pipe 420 is arranged in each installation channel 301, each protective atmosphere pipe 420 is connected to each protective atmosphere pipe 420, and multiple protective atmosphere pipes 420 are connected to the protective atmosphere source 410. In this embodiment, multiple air intake pipes 430 are evenly distributed in the installation channel 301, so that the protective gas can evenly form an air cushion protective layer 600 on the surface of the carbon fiber porous layer 100, thereby effectively improving the service life of the ultra-high temperature resistant furnace wall structure 10.

[0044] The present application also provides a high-temperature continuous graphitization furnace, comprising the ultra-high temperature resistant furnace wall structure 10 in any of the above embodiments. In this embodiment, the ultra-high temperature resistant furnace wall structure 10 can effectively insulate heat, reduce energy consumption, and form an air cushion protective layer 600 in the high-temperature continuous graphitization furnace, reducing the loss of carbonaceous materials in the furnace, thereby increasing the service life of the high-temperature continuous graphitization furnace.

[0045] Compared with the prior art, the utility model has at least the following advantages:

[0046] 1. The ultra-high temperature resistant furnace wall structure 10 and the high temperature continuous graphitization furnace described above fill the stacking channel 201 with protective gas through the air inlet pipe 430, and the protective gas covers the surface of the stacking layer 200, thereby reducing the oxidation loss of the stacking layer 200. The gaps in the stacking channel 201 filled by the stacking layer 200 can reduce heat conduction, thereby reducing heat and reducing the heat resistance requirements and costs of the thermal insulation layer 300;

[0047] 2. When the protective gas flows into the multiple pore channels 101 of the carbon fiber porous layer 100, the gas outlet ends of the multiple pore channels 101 are evenly distributed on the surface of the carbon fiber porous layer 100, so that the protective gas forms an air cushion protective layer 600 on the surface of the carbon fiber porous layer 100, reducing the oxidation loss of the carbon fiber porous layer 100, thereby improving the service life of the carbon fiber porous layer 100.

[0048] 3. The fixing groove 3102 is installed in the fixing member 440, so that the connection strength between the air intake pipe 430 connected by the fixing member 440 and the high temperature support layer 310 and the light protective layer 320 is improved, thereby preventing the air intake pipe 430 from loosening.

[0049] The above-mentioned embodiments only express several implementation methods of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.

Claims

1. An ultra-high temperature resistant furnace wall structure, characterized in that: It comprises a carbon fiber porous layer (100), a stacking layer (200), a thermal insulation layer (300) and a protective atmosphere component (400), wherein a stacking channel (201) is provided between the carbon fiber porous layer (100) and the thermal insulation layer (300), and the stacking layer (200) is filled in the stacking channel (201); The thermal insulation layer (300) is provided with an installation channel (301), and the installation channel (301) is connected to the stacking channel (201). The protective atmosphere component (400) comprises a protective atmosphere source (410), a protective atmosphere pipeline (420) and an air intake pipeline (430), and the air intake pipeline (430) is arranged in the installation channel (301). One end of the protective atmosphere pipeline (420) is connected to the protective atmosphere source (410), and the other end of the protective atmosphere pipeline (420) is connected to the air intake end of the air intake pipeline (430). The air outlet end of the air intake pipeline (430) abuts against the carbon fiber porous layer (100). The air intake pipeline (430) is also provided with a side wall outlet (4301), and the side wall outlet (4301) is connected to the stacking channel (201); The carbon fiber porous layer (100) is provided with a pore channel (101), the number of the pore channels (101) is multiple, the multiple pore channels (101) are interconnected, the air inlet ends of several of the pore channels (101) are connected to the stacking channel (201), the air inlet ends of several of the pore channels (101) are connected to the air outlet ends of the air inlet pipe (430), and the air outlet ends of the multiple pore channels (101) are arranged on a side of the carbon fiber porous layer (100) away from the stacking channel (201).

2. The ultra-high temperature resistant furnace wall structure according to claim 1, characterized in that: The carbon fiber porous layer (100) comprises a first carbon fiber (110) and a second carbon fiber (120), wherein the first carbon fiber (110) and the second carbon fiber (120) are interlaced and woven, and a plurality of pore channels (101) are formed between the first carbon fiber (110) and the second carbon fiber (120).

3. The ultra-high temperature resistant furnace wall structure according to claim 1, characterized in that: There are multiple side wall outlets (4301), and the multiple side wall outlets (4301) are arranged at intervals in the air intake duct (430).

4. The ultra-high temperature resistant furnace wall structure according to claim 1, characterized in that: The ultra-high temperature resistant furnace wall structure further comprises a graphite nail (500), the carbon fiber porous layer (100) is provided with a fixing through hole (102), the graphite nail (500) is passed through the fixing through hole (102), one end of the graphite nail (500) is connected to the thermal insulation layer (300), and the other end of the graphite nail (500) is abutted against the carbon fiber porous layer (100).

5. The ultra-high temperature resistant furnace wall structure according to claim 1, characterized in that: The thermal insulation layer (300) comprises a high-temperature support layer (310) and a light-weight protective layer (320); the high-temperature support layer (310) is arranged on a side of the stacking layer (200) away from the carbon fiber porous layer (100); the high-temperature support layer (310) is provided with a first air passage (3101); the light-weight protective layer (320) is arranged on a side of the high-temperature support layer (310) away from the stacking layer (200); the light-weight protective layer (320) is provided with a second air passage (3201); the first air passage (3101) and the second air passage (3201) are connected to form the installation channel (301).

6. The ultra-high temperature resistant furnace wall structure according to claim 5, characterized in that: The protective atmosphere component (400) also includes a fixing part (440), and the fixing part (440) is connected to the outer peripheral wall of the air inlet pipe (430). A fixing groove (3102) is provided on the side of the high-temperature support layer (310) away from the stacking layer (200), and the fixing groove (3102) is respectively connected to the first air passage (3101) and the second air passage (3201), and the fixing part (440) is installed in the fixing groove (3102).

7. The ultra-high temperature resistant furnace wall structure according to claim 6, characterized in that: The fixing groove (3102) is a conical structure, and the fixing member (440) is adapted to be embedded in the fixing groove (3102).

8. The ultra-high temperature resistant furnace wall structure according to claim 5, characterized in that: The thermal insulation layer (300) further comprises a heat insulating layer (330), wherein the heat insulating layer (330) is coated on the outer peripheral wall of the lightweight protective layer (320).

9. The ultra-high temperature resistant furnace wall structure according to claim 1, characterized in that: The number of the air intake pipe (430), the installation channel (301) and the protective atmosphere pipe (420) is multiple, each of the protective atmosphere pipes (420) is passed through each of the installation channels (301), each of the protective atmosphere pipes (420) is connected to each of the protective atmosphere pipes (420), and multiple protective atmosphere pipes (420) are connected to the protective atmosphere source (410).

10. A high temperature continuous graphitization furnace, characterized in that: It comprises the ultra-high temperature resistant furnace wall structure (10) according to any one of claims 1 to 9.

Images