Kiln cooling device

Abstract

The embodiment of the application provides a kiln cooling device, which comprises a turbulence component, the turbulence component is arranged along the height direction of the furnace chamber and is located below the sagger, the turbulence component comprises a shell, the shell is surrounded to form a containing cavity, an air inlet and an air outlet which are communicated with the containing cavity, the air inlet and the air outlet are arranged at intervals along the height direction of the furnace chamber, and the air outlet end of the air outlet vertically faces upward; an annular gap is arranged through the shell, the annular gap is communicated with the containing cavity, the annular gap is configured to receive external gas and guide the external gas to flow in the direction of the air outlet; the external gas enters the containing cavity through the annular gap, so that a negative pressure is formed at the containing cavity corresponding to the air inlet, air in the furnace chamber enters the containing cavity from the air inlet and then flows out through the air outlet, a negative pressure is formed in the turbulence component, so that the upper and lower air flows are mixed, the sagger discharge temperature and the temperature difference between the upper and lower layers are reduced.

Description

Technical Field

[0001] This application relates to the field of lithium battery material sintering technology, and in particular to a kiln cooling device. Background Technology

[0002] With the development of new energy technologies, lithium batteries are widely used in production and daily life. The positive and negative electrode materials of lithium batteries, such as the positive electrode materials of ternary lithium batteries and lithium iron phosphate batteries and the negative electrode materials of graphite batteries, need to be sintered in a kiln during production. In order to increase the output of lithium battery materials in the kiln, the following two methods are mainly adopted: First, increase the loading capacity of the saggers, such as increasing the amount of saggers or changing the arrangement of single-layer saggers to two, three or more layers; Second, shorten the cooling time after sintering the materials and speed up the output efficiency of the refined products.

[0003] Both of these methods can lead to excessively high kiln outlet temperatures and large temperature differences between the upper and lower saggers. Related technologies typically involve preliminary stirring and heat dissipation of the material in the saggers after exiting the kiln, while simultaneously introducing cooling fresh air into the external circulation line. However, this method can result in material overflow, condensation of the introduced fresh air due to the large temperature difference, and excessive energy consumption.

[0004] In view of the above, this application is hereby submitted. Utility Model Content

[0005] This application provides a kiln cooling device. By introducing a turbulence component structure into the kiln cooling section and driving it with high-pressure gas, the turbulence component generates a high-speed airflow in the kiln cooling section, forming negative pressure adsorption and vortex disturbance, which promotes the mixing of airflow in the upper and lower layers of the cooling section, and reduces the kiln outlet temperature and the temperature difference between the upper and lower layers.

[0006] This application provides a kiln cooling device, which includes a kiln cooling section and a sagger installed inside the kiln chamber for cooling. The kiln cooling device includes:

[0007] A flow-dissipating assembly extends along the height of the furnace and is located below the sagger. The flow-dissipating assembly includes:

[0008] The shell encloses a cavity and an air inlet and an air outlet communicating with the cavity. The air inlet and air outlet are spaced apart along the height of the furnace, and the air outlet ends of the air outlets face vertically upwards.

[0009] An annular slit is provided through the shell, and the annular slit is connected to the receiving cavity. The annular slit is configured to receive external gas and guide it to flow toward the gas outlet.

[0010] External gas enters the containment cavity through the annular gap, creating a negative pressure at the containment cavity corresponding to the air inlet, causing the air in the furnace to enter the containment cavity from the air inlet and then flow out through the air outlet.

[0011] In one possible implementation, the housing further includes:

[0012] The shell body has a cavity and an air inlet and an air outlet communicating with the cavity; the shell body also has an air supply hole.

[0013] The extension section is connected to the housing body and is configured to extend toward the air inlet. The extension section and the housing body form an annular gap and an annular cavity communicating with the annular gap and the air supply hole.

[0014] In one possible implementation, the side of the extension away from the air supply hole is provided with an inclined surface, which is configured to be inclined from the air supply hole toward the annular gap toward the air outlet.

[0015] In one possible implementation, the air outlet is configured to be inclined toward the outer wall of the housing from the air inlet to the air outlet.

[0016] In one possible implementation, the air intake direction of the air inlet is configured to be inclined toward the inner wall of the housing from the direction of the air inlet toward the air outlet.

[0017] In one possible implementation, the kiln cooling device further includes a first fin and a second fin spaced apart along the height direction of the furnace, with the first fin positioned above the second fin.

[0018] In one possible implementation, both the first fin and the second fin are provided in multiples, with the number of first fins being greater than the number of second fins.

[0019] In one possible implementation, the kiln cooling device further includes a gas pipeline, with the inlet end of the gas pipeline connected to a gas source and the outlet end of the gas pipeline connected to a gas supply port.

[0020] In one possible implementation, multiple turbulence-disrupting components are provided, spaced apart along the length of the tracheal tube.

[0021] In one possible implementation, there is a gap between the air outlet and the sagger.

[0022] The kiln cooling device provided in this application includes a turbulence component. The turbulence component is arranged along the height direction of the furnace and has an air inlet and an air outlet along the height direction. External gas is introduced at the middle position of the turbulence component, and a negative pressure is formed inside the turbulence component, so that the air in the lower part of the furnace can reach the upper part of the furnace through the air inlet and the air outlet, thereby reducing the temperature difference between the upper and lower layers of the furnace. Attached Figure Description

[0023] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application.

[0024] Figure 1 A partial structural schematic diagram of the kiln provided in this application;

[0025] Figure 2 This is an assembly diagram of the tracheal tubing and the baffle assembly provided in this application;

[0026] Figure 3 for Figure 2 A magnified view of position A in the middle;

[0027] Figure 4 A cross-sectional view of the turbulence component provided in this application.

[0028] Explanation of reference numerals in the attached figures:

[0029] 10 - Kiln cooling section;

[0030] 1-Furnace chamber;

[0031] 21-First fin;

[0032] 22-Second fin;

[0033] 3-Gas piping;

[0034] 4-Spoiler components;

[0035] 5-Sagger;

[0036] 41 - Gas supply port;

[0037] 42-Annular cavity;

[0038] 43- Annular gap;

[0039] 45 - Air intake;

[0040] 46 - Air outlet;

[0041] 44 - Casing;

[0042] 441 - Shell body;

[0043] 442 - Extension;

[0044] 47 - Receiving cavity;

[0045] 31-Connecting pipes.

[0046] The accompanying drawings illustrate specific embodiments of this application, which will be described in more detail below. These drawings and descriptions are not intended to limit the scope of the concept in any way, but rather to illustrate the concept of this application to those skilled in the art through reference to particular embodiments. Detailed Implementation

[0047] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numbers in different drawings denote the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this application. Rather, they are merely examples of apparatuses and methods consistent with some aspects of this application as detailed in the appended claims.

[0048] The kiln cooling device proposed in this application is mainly used in industrial fields that require high-temperature sintering, such as electronic components (e.g., multilayer ceramic capacitors MLCC, ceramic substrates), structural ceramics (e.g., alumina ceramics), and magnetic materials. Specifically, it is adapted to continuous sintering kiln systems in large-scale production.

[0049] The sintering kiln system includes a kiln heating section, a kiln constant temperature section, and a kiln cooling section. In the kiln heating section, the material is heated to the sintering temperature, the sintering reaction is completed in the kiln constant temperature section, and finally the material is discharged after the sintering temperature is reduced to the discharge temperature in the kiln cooling section.

[0050] However, in order to increase production capacity, related technologies improve efficiency by increasing the amount of saggers and shortening the residence time in the cooling section of the kiln, which can lead to excessively high material temperature and excessively large temperature differences between the upper and lower saggers.

[0051] Related technologies employ methods such as stirring the material after it exits the furnace to dissipate heat or injecting cooling fresh air through an external circulation line. However, the former method has the problem of material overflow (especially for powdery materials), while the latter method is prone to condensation due to the large temperature difference between the inside and outside of the furnace (leading to the material absorbing moisture and deteriorating). Furthermore, the heating / dehumidification of the fresh air requires additional energy consumption.

[0052] To address the aforementioned technical problems, this application proposes a kiln cooling device. By optimizing the airflow disturbance structure in the cooling section, the operating frequency of the internal disturbance airflow is increased without introducing external fresh air or contacting the material, thereby reducing the temperature difference between the upper and lower saggers and lowering the sagger's exit temperature.

[0053] The technical solution of this application and how the technical solution of this application solves the above-mentioned technical problems are described in detail below with specific embodiments. These specific embodiments can be combined with each other, and the same or similar concepts or processes may not be described again in some embodiments. The embodiments of this application will now be described with reference to the accompanying drawings.

[0054] This application provides a kiln cooling device, referring to... Figure 1 As shown, the device includes a kiln cooling section, a kiln cooling chamber, and a storage space formed inside the kiln chamber.

[0055] The storage space is equipped with saggers, which are used to hold the materials to be sintered, thus avoiding the chaotic conveying caused by the direct scattering of materials.

[0056] To improve production, multiple saggars can be set up, and the saggars can be arranged according to a set arrangement rule.

[0057] Figure 1 As shown, the X-axis represents the length of the furnace chamber, the Y-axis represents the width of the furnace chamber, and the Z-axis represents the height of the furnace chamber.

[0058] Reference Figure 1 As shown, a sagger 5 is installed inside the furnace chamber 1 of the kiln cooling section 10.

[0059] The kiln cooling device includes a turbulence component 4, which extends along the height of the furnace chamber 1 and is located below the sagger 5.

[0060] The turbulence component 4 utilizes the Coanda effect and is driven by high-pressure gas to generate high-pressure airflow in the cooling section 10 of the kiln, forming negative pressure adsorption and vortex disturbance, which promotes the mixing of upper and lower airflows in the furnace 1.

[0061] It should be noted that the Coanda effect described above is as follows: when a liquid or gas (collectively referred to as "fluid") is flowing, it will naturally tend to adhere to a nearby convex solid surface and change its original straight flow trajectory along the convex surface, rather than detaching from the surface and continuing to move in a straight line.

[0062] Reference Figure 2 , Figure 3 As shown, the turbulence component 4 includes a housing 44, which encloses a receiving cavity 47 for receiving airflow.

[0063] The shell 44 also encloses an air inlet 45 and an air outlet 46 that communicate with the receiving cavity 47. The air inlet 45 and the air outlet 46 are spaced apart along the height direction of the furnace 1. The air outlet 46 has its outlet end facing vertically upward. The air inlet 45 has its inlet end facing vertically downward.

[0064] An annular slit 43 is provided through the housing 44, and the annular slit 43 is connected to the receiving cavity 47. The annular slit 43 is configured to receive external gas and guide it to flow toward the gas outlet 46.

[0065] External gas enters the containment cavity 47 through the annular gap 43 and flows faster in the direction toward the outlet 46, so as to form a negative pressure in the area of ​​the containment cavity 47 corresponding to the inlet 45, so that the air in the furnace 1 enters the containment cavity 47 from the inlet 45 and flows out through the outlet 46.

[0066] In the above scheme, the external gas is accelerated and released when passing through the annular gap 43, and the gas around the air inlet 45 is disturbed by negative pressure adsorption.

[0067] The gas released at the outlet 46 is faster than the surrounding airflow, which will form a vortex at the outlet 46 and disturb the gas around the outlet 46 upward.

[0068] The aforementioned airflow disturbance allows for thorough mixing of the gas at the bottom and the gas at the top of the kiln cooling section 10, thereby improving the uniformity of the temperature field in the kiln cooling section 10 and reducing the problem of excessive temperature difference between the upper and lower layers at the outlet of the kiln cooling section 10.

[0069] By mixing hot and cold air through internal airflow disturbance, the reliance on external cooling fresh air is reduced, energy consumption is lowered, and condensation problems are avoided.

[0070] The heat energy inside the kiln is converted into the kinetic energy of the turbulent airflow, and the temperature field is homogenized through internal circulation, rather than relying on external environmental intervention.

[0071] It should be noted that the area of ​​the receiving cavity 47 corresponding to the air inlet 45 refers to a specific spatial range in the receiving cavity 47 that is directly connected to the air inlet 45, that is, the opening position of the air inlet 45 in the receiving cavity 47 and the space of the receiving cavity 47 within a certain range around it.

[0072] The key function of the area of ​​the receiving cavity 47 corresponding to the air inlet 45 is to create negative pressure through airflow, thereby establishing the power for the bottom air of the furnace 1 to enter the receiving cavity 47.

[0073] In one possible implementation, refer to Figure 4 As shown, the housing 44 also includes a housing body 441, which surrounds and forms a receiving cavity 47 and an air inlet 45 and an air outlet 46 communicating with the receiving cavity 47.

[0074] An air supply port 41 is also formed on the housing body 441. The air supply port 41 is connected to the outside gas and is used to receive the outside gas.

[0075] Reference Figure 4 As shown, the housing 44 also includes an extension 442, which is connected to the housing body 441 and is configured to extend toward the air inlet 45.

[0076] The extension 442 and the housing body 441 form an annular gap 43, and the extension 442 and the housing body 441 form an annular cavity 42 that communicates with the annular gap 43 and the air supply port 41.

[0077] By setting the annular cavity 42 as a transition chamber for external gas to enter the receiving cavity 47, the external gas can be initially accelerated so that it can be accelerated again through the annular gap 43, so as to form a negative pressure in the receiving cavity 47 near the annular gap 43.

[0078] The air enters the annular cavity 42 of the turbulence assembly 4 through the air supply port 41, is squeezed and accelerated at the annular gap 43, and is released from the inner wall of the housing 44 to form a negative pressure, which adsorbs the surrounding gas. Here, the negative pressure is used to turbulent the airflow.

[0079] The released gas forms a high-speed airflow at the outlet 46, creating a speed difference with the surrounding airflow and forming a vortex, which further disturbs the gas around the outlet 46. This is achieved by using vortexes to disturb the airflow.

[0080] The aforementioned disturbances caused the cold air at the bottom of the kiln cooling section 10 to mix fully with the hot air above, breaking the original temperature field stratification phenomenon.

[0081] Through airflow disturbance, hot air inside the kiln is forced to the lower layer and cold air is forced to the upper layer, forming a circulating convection. This process significantly improves the efficiency of heat diffusion in both the lateral and longitudinal directions and reduces the temperature difference between the upper and lower saggars 5.

[0082] In one possible implementation, the extension 442 is provided with an inclined surface on the side away from the air supply port 41. The inclined surface is configured to be inclined from the air supply port 41 toward the annular gap 43 toward the air outlet 46.

[0083] By setting the angle of the extension 442, the outside gas is accelerated after passing through the annular gap 43 and flows upward along the inclined surface. This upward jet guide determines that the negative pressure zone is near the air inlet, thus realizing the normal operation of the overall airflow direction of the turbulence component 4.

[0084] Reference Figure 4 As shown, external gas enters the annular cavity 42 from the air supply port 41 and is accelerated out through the annular gap 43. Due to the Coanda effect, it adheres to the inclined surface of the extension 442 and flows upward. This flow will entrain gas near the air inlet. According to Bernoulli's principle, the pressure is low where the fluid velocity is high, resulting in a negative pressure in that area.

[0085] Because fluid flow follows the principle of least resistance, the path for cold air at the bottom to reach the negative pressure zone through the air inlet is short and direct (without excessive structural obstruction), resulting in low resistance; while the path for hot air at the top must bypass the shell 44, air outlets, and other structures, resulting in a long path and high resistance. Therefore, the negative pressure zone will preferentially attract the easily accessible cold air from the bottom.

[0086] The adsorbed cold air at the bottom will enter the upper layer of the kiln cooling section 10 through the air outlet along with the jet airflow. After mixing and cooling with the hot air, some of it will fall back to the bottom due to gravity, continuously providing air source for the bottom. After the hot air at the top is mixed and discharged, it cannot accumulate at the bottom, further ensuring that the negative pressure zone can only adsorb the cold air at the bottom.

[0087] In one possible implementation, the air outlet 46 is configured to be inclined toward the outer wall of the housing 44 from the air inlet 45 toward the air outlet 46.

[0088] It should be noted that the air outlet 46 of the same turbulence component 4 mentioned above is uniformly inclined along the circumferential direction to ensure symmetrical airflow diffusion.

[0089] When the air outlet is tilted toward the outer wall of the casing 44, the airflow is sprayed out from the air outlet in a fan-shaped diffusion pattern. Compared with the vertical upward air outlet, the diffusion angle expands synchronously with the tilt angle.

[0090] The airflow inclined towards the outer wall of the shell 44 will form an upward traction airflow during its upward flow.

[0091] On the one hand, the low-temperature mixture carried by the inclined airflow will directly impact the hot air layer outside the shell 44;

[0092] On the other hand, according to the fluid traction effect, the high-speed flow of the inclined airflow will entrain the hot air outside the shell 44, forming a mixed flow of low-temperature airflow and entrained hot air, which moves upward along the outer wall of the shell 44 and eventually merges with the hot air at the top of the furnace 1, improving the mixing efficiency of the upper and lower airflows.

[0093] In some embodiments, the air intake direction of the air inlet 45 is configured to be inclined toward the inner wall of the housing 44 from the direction of the air inlet 45 toward the air outlet 46.

[0094] It should be noted that the air inlet 45 of the same turbulence component 4 mentioned above is uniformly inclined along the circumferential direction to ensure symmetrical airflow diffusion.

[0095] After the air inlet 45 is tilted toward the inner wall of the housing 44, the airflow enters the receiving cavity 47 along a trajectory close to the tangential direction of the inner wall of the housing 44. The airflow does not need to overcome the resistance of vertical impact and can flow smoothly along the contour of the inner wall of the housing 44, forming a pre-attached state.

[0096] Combined with the Coanda effect, the airflow can be stabilized on the inner wall surface of the shell 44 more quickly, avoiding the waste of kinetic energy caused by vortices.

[0097] In one possible implementation, the kiln cooling device further includes an air pipeline 3, with the inlet end of the air pipeline 3 connected to an air source and the outlet end of the air pipeline 3 connected to an air supply port.

[0098] Reference Figure 3 As shown, a connecting pipe 31 is provided between the air outlet and the air supply port of the air pipeline 3. By providing the connecting pipe 31, the installation position of the turbulence component 4 can be flexibly set.

[0099] In one possible implementation, the kiln cooling device further includes a first fin 21 and a second fin 22 spaced apart along the height direction of the furnace chamber 1, with the first fin 21 positioned above the second fin 22.

[0100] Specifically, refer to Figure 1 As shown, the first fin 21 is located in the upper part of the furnace 1, and the first fin 21 is used to reduce the heat accumulated in the upper layer. The second fin 22 is located in the lower part of the furnace 1, and the second fin 22 is used to reduce the heat in the lower layer of the furnace 1 and reduce the airflow temperature in the gas pipeline 3, so as to avoid the excessive temperature difference between the gas temperature in the gas pipeline 3 and the gas temperature in the furnace 1, which would cause condensation to occur inside the furnace 1.

[0101] Cooling fins are installed on the upper and lower layers of the kiln cooling section 10, and air pipes of the turbulence component 4 are arranged between the lower cooling fins. Vertical airflow disturbance is achieved through vertical jetting to enhance heat diffusion.

[0102] The spacing of the cooling fins needs to match the airflow coverage of the turbulence assembly 4 in order to maximize the airflow disturbance effect.

[0103] In one possible implementation, there are multiple first fins 21 and second fins 22, with the number of first fins 21 being greater than the number of second fins 22.

[0104] Since hot air tends to stagnate in the upper part of the furnace chamber 1, precise temperature field control can be achieved by reasonably setting the number of the first fin 21 and the second fin 22.

[0105] Reference Figure 1 As shown, multiple gas pipelines 3 are provided, with the gas pipeline 3 located in the middle of the second fin 22. The gas pipeline 3 and the second fin 22 are spaced apart along the width direction of the furnace chamber 1.

[0106] By setting up multiple air ducts 3, multiple airflow turbulence components 4 can be used to reduce the heat dissipation blind spots in the width direction.

[0107] By setting the gas pipeline 3 and the second fin 22 at intervals, the airflow in the gas pipeline 3 can exchange heat with the second fin 22, reducing the temperature difference between the gas in the gas pipeline 3 and the gas in the furnace 1, and reducing the occurrence of condensation in the furnace 1.

[0108] In one possible implementation, multiple flow-disrupting components 4 are provided, spaced apart along the length of the air passage 3. By appropriately setting the number of flow-disrupting components 4, the mixing efficiency of the upper and lower airflow layers can be adjusted.

[0109] In one possible implementation, there is a gap between the air outlet 46 and the crucible 5. By setting the air outlet 46 of the turbulence assembly 4 to maintain a certain distance from the bottom of the crucible 5, it is ensured that the airflow directly acts on the material surface of the crucible 5.

[0110] After experimental measurement, the temperature difference between the upper and lower saggers 5 of the kiln cooling section 10 was effectively reduced after applying the turbulence component of the technical solution of this application embodiment.

[0111] Specifically, the temperature difference between the upper and lower saggers 5 of the kiln cooling section 10 without the turbulence-inducing component 4 is 40-70℃. The temperature difference between the upper and lower saggers 5 of the kiln cooling section 10 with the turbulence-inducing component 4 is 15-30℃.

[0112] The kiln cooling device provided in this application embodiment includes a turbulence component 4. The turbulence component 4 is arranged along the height direction of the furnace chamber 1, and an air inlet 45 and an air outlet 46 are arranged along the height direction. External gas is introduced at the middle position of the turbulence component 4, and a negative pressure is formed inside the turbulence component 4, so that the air in the lower part of the furnace chamber 1 can reach the upper part of the furnace chamber 1 through the air inlet 45 and the air outlet 46, thereby reducing the temperature difference between the upper and lower layers of the furnace chamber 1.

[0113] Through the coordinated design of the turbulence component 4 and the fins, efficient turbulence and heat exchange of the airflow inside the cooling section 10 of the kiln are achieved, solving problems such as uneven temperature field between upper and lower layers, high energy consumption and material overflow in related technologies.

[0114] Finally, it should be noted that other embodiments of this utility model will readily occur to those skilled in the art upon consideration of the specification and practice of the utility model disclosed herein. This utility model is intended to cover any variations, uses, or adaptations of this utility model that follow the general principles of this utility model and include common knowledge or customary techniques in the art not disclosed herein, and is not limited to the precise structures described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The scope of this utility model is limited only by the appended claims.

Claims

1. A kiln cooling device, comprising a kiln cooling section (10), wherein a sagger (5) is provided inside the furnace chamber (1) of the kiln cooling section (10), characterized in that, The kiln cooling device includes: A flow-dispersing assembly (4) extends along the height direction of the furnace (1) and is located below the sagger (5). The flow-dispersing assembly (4) includes: The shell (44) surrounds and forms a receiving cavity (47) and an air inlet (45) and an air outlet (46) communicating with the receiving cavity (47). The air inlet (45) and the air outlet (46) are spaced apart along the height direction of the furnace (1), and the air outlet (46) has its outlet end facing vertically upward. An annular slit (43) is provided through the housing (44), the annular slit (43) is connected to the receiving cavity (47), and the annular slit (43) is configured to receive external gas and guide it to flow toward the air outlet (46). External gas enters the containment cavity (47) through the annular gap (43) to form a negative pressure in the area of ​​the containment cavity (47) corresponding to the air inlet (45), so that the air in the furnace (1) enters the containment cavity (47) from the air inlet (45) and flows out through the air outlet (46).

2. The kiln cooling device according to claim 1, characterized in that, The housing (44) further includes: The housing body (441) surrounds and forms the receiving cavity (47) and the air inlet (45) and the air outlet (46) communicating with the receiving cavity (47); the housing body (441) also forms an air supply port (41). An extension (442) is connected to the housing body (441). The extension (442) is configured to extend toward the air inlet (45). The extension (442) and the housing body (441) form the annular slit (43) and an annular cavity (42) communicating with the annular slit (43) and the air supply port (41). The annular slit (43) communicates with the air supply port (41).

3. The kiln cooling device according to claim 2, characterized in that, The extension (442) has an inclined surface on the side away from the air supply port (41), and the inclined surface is configured to be inclined from the air supply port (41) toward the annular gap (43) toward the air outlet (46).

4. The kiln cooling device according to any one of claims 1-3, characterized in that, The air outlet (46) is configured to be inclined toward the outer wall of the housing (44) from the air inlet (45) toward the air outlet (46).

5. The kiln cooling device according to any one of claims 1-3, characterized in that, The air intake direction of the air inlet (45) is configured to be inclined towards the inner wall of the housing (44) from the air inlet (45) toward the air outlet (46).

6. The kiln cooling device according to any one of claims 1-3, characterized in that, It also includes a first fin (21) and a second fin (22) spaced apart along the height direction of the furnace (1), with the first fin (21) positioned above the second fin (22) along the height direction of the furnace (1).

7. The kiln cooling device according to claim 6, characterized in that, Both the first fin (21) and the second fin (22) are configured as multiple, and the number of the first fin (21) is greater than the number of the second fin (22).

8. The kiln cooling device according to claim 2, characterized in that, It also includes a gas pipeline (3), which is located inside the furnace (1). The gas inlet end of the gas pipeline (3) is connected to a gas source, and the gas outlet end of the gas pipeline (3) is connected to the gas supply port (41).

9. The kiln cooling device according to claim 8, characterized in that, The turbulence-disrupting components (4) are configured in multiples and are spaced apart along the length of the gas pipeline (3).

10. The kiln cooling device according to any one of claims 1-3, characterized in that, There is a gap between the air outlet (46) and the sagger (5).

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