Cooling device and graphitization furnace

Abstract

The utility model relates to a cooling device and a graphitization furnace. The cooling device is used for cooling materials in a furnace body of the graphitization furnace and comprises a cooling main body and a cooling piece, a feeding channel is arranged in the cooling main body, the feeding channel is used for being communicated with the interior of the furnace body, a first cooling channel is arranged in the wall body of the cooling main body, and the first cooling channel is annularly arranged on the periphery of the feeding channel; the cooling piece is rotatably arranged in the feeding channel. The wall body of the cooling device is arranged on the periphery of the feeding channel, and the cooling piece is arranged in the feeding channel so as to cool materials located at different positions in the feeding channel, so that the cooling effect of the cooling device is improved, and the materials can be uniformly cooled.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of cooling devices, in particular to a cooling device and a graphitization furnace. BACKGROUND

[0002] For high-temperature reaction devices, the generated material after the reaction is often at a high temperature, which is not conducive to subsequent processing of the material. For example, when using a graphitization furnace to generate graphite material, the graphite material obtained in the reaction chamber is at a high temperature, which is easy to cause secondary reaction with external air and affect the quality of the graphite material.

[0003] Therefore, it is necessary to cool the material obtained in the reaction chamber after the reaction. However, the current cooling device has poor cooling effect on the material, and there is a large temperature difference between the materials at different positions, which causes uneven cooling of the material. SUMMARY

[0004] In view of the above problems, the present application provides a cooling device and a graphitization furnace, which can alleviate the problem of poor cooling effect of the material obtained after the reaction in the reaction chamber.

[0005] In a first aspect, the present application provides a cooling device for cooling the material in the furnace body of a graphitization furnace, which comprises a cooling main body and a cooling member. The cooling main body is internally provided with a feeding channel for communicating with the inside of the furnace body, and the wall body of the cooling main body is internally provided with a first cooling channel which is annularly arranged at the outer periphery of the feeding channel; and the cooling member is rotatably arranged in the feeding channel.

[0006] In the technical scheme of the present application, the cooling device is started, and cooling medium is introduced into the first cooling channel of the wall body and the cooling member. The above-mentioned material can be roughly divided into a first part and a second part, the first part is arranged close to the wall body, and the second part is arranged away from the wall body. Because the cooling member is located in the feeding channel, the wall body mainly cools the first part, and the cooling member mainly cools the second part. Moreover, the cooling member can agitate the material passing through it to accelerate the cooling speed of the material.

[0007] Because the farther away from the wall body or the cooling member, the poorer the cooling effect of the wall body and the cooling member, the wall body is arranged at the periphery of the feeding channel, and the cooling member is arranged in the interior of the feeding channel, so as to cool the material at different positions in the feeding channel, thereby improving the cooling effect of the cooling device and uniformly cooling the material.

[0008] In some embodiments, the feeding channel extends along a first direction, the cooling member rotates around a set axis of itself, the set axis extends along the first direction, the cooling member comprises a second cooling channel, the second cooling channel extends along the first direction and communicates with the feeding channel.

[0009] In this way, by arranging the second cooling channel in the cooling member, the material can be cooled in multiple directions, and the cooling effect of the cooling member is improved.

[0010] In some embodiments, the cooling member comprises a base and a plurality of cooling pipes, all the cooling pipes are arranged on the base, two adjacent cooling pipes are arranged at intervals, and a second cooling channel is formed between the two adjacent cooling pipes.

[0011] In this way, by arranging a plurality of second cooling channels in the cooling member, the material can be cooled in multiple directions, and the cooling effect of the cooling member is improved.

[0012] In some embodiments, the feeding channel comprises a feeding end and a discharging end arranged opposite to each other in the first direction, the cooling member is arranged away from the feeding end, and the base and the wall body jointly form the discharging end.

[0013] In this way, the discharging mode of the material in the cooling body is simplified.

[0014] In some embodiments, the cooling pipes are arranged in extension in the first direction, and the orthographic projection of at least part of the cooling pipes on the base forms a ring structure.

[0015] In this way, the material can be cooled in all directions, and the cooling capacity of the cooling member is improved.

[0016] In some embodiments, all the cooling pipes are connected, the base is provided with a cooling medium inlet and a cooling medium outlet away from one side of the cooling pipes, the cooling medium inlet is connected to at least one cooling pipe, and the cooling medium outlet is connected to the remaining cooling pipes.

[0017] In this way, the cooling medium conveying device can be connected to the conveying pipe, and the installation difficulty is reduced.

[0018] In some embodiments, at least one of all the cooling pipes is configured as an inflow pipe, and the remaining cooling pipes are configured as outflow pipes, one end of the inflow pipe is connected to the cooling medium inlet, the other end of the inflow pipe is connected to all the outflow pipes, and one end of each outflow pipe away from the inflow pipe is connected to the cooling medium outlet.

[0019] In this way, the connection mode between the cooling pipes of the cooling member is simplified, so that the cooling pipes and the cooling medium conveying device are connected to form a circulation channel for the cooling medium.

[0020] In some embodiments, the outer diameter of the cooling pipe is r1, the inner diameter of the cooling pipe is r2, and the ratio of r1 to r2 is in the range of 5:1 to 1.1:1.

[0021] By limiting the ratio range of the inner diameter and the outer diameter of the cooling member, the wall thickness of the cooling member is limited, the probability of damage of the cooling member is reduced without affecting the heat exchange effect of the cooling member, and the service life of the cooling member is prolonged.

[0022] In some embodiments, along the first direction, the inner diameter of the cross section of the cooling body is R1, the outer diameter of the cross section of the cooling body is R2, and the ratio of R1 and R2 ranges from 1:1 to 1:1.8.

[0023] By limiting the ratio range of the inner diameter and the outer diameter of the cross section of the cooling body, the wall thickness of the cooling body is limited, the probability of damage of the cooling member is reduced without affecting the heat exchange effect of the cooling member, and the service life of the cooling member is prolonged.

[0024] In some embodiments, the first cooling channel extends along the first direction, and the cooling body further comprises a flow guide arranged in the first cooling channel, the flow guide being helical and extending along the first direction.

[0025] In this way, after the cooling medium enters the first cooling channel, it can smoothly flow from the cooling medium inlet to the cooling medium outlet under the action of the flow guide, thereby accelerating the flow speed of the cooling medium in the first cooling channel.

[0026] In some embodiments, the inner wall surface of the cooling body is provided with a wear-resistant coating.

[0027] In this way, the wear resistance of the inner wall surface of the cooling body is prolonged, thereby prolonging the service life of the cooling body.

[0028] In a second aspect, the application provides a graphitization furnace comprising the cooling device in the above embodiments.

[0029] The above description is only a summary of the technical solutions of the application. In order to enable the technical means of the application to be more clearly understood, and to be implemented according to the content of the description, and in order to enable the above and other purposes, characteristics and advantages of the application to be more apparent and easy to understand, the following specific embodiments of the application are described in detail. BRIEF DESCRIPTION OF DRAWINGS

[0030] By reading the detailed description of the preferred embodiments below, various other advantages and benefits will become apparent to those of ordinary skill in the art. The drawings are only for the purpose of illustrating the preferred embodiments and are not considered limiting the application. Moreover, the same reference numbers are used throughout the drawings to represent the same components. In the drawings:

[0031] Figure 1 is a structural schematic view of a graphitization furnace according to one or more embodiments.

[0032] Figure 2A structural schematic view of a cooling device of a graphitization furnace according to one or more embodiments.

[0033] Figure 3 A sectional view of a cooling device of a graphitization furnace according to one or more embodiments.

[0034] Reference signs in the detailed description of the embodiments are as follows:

[0035] 1000, a graphitization furnace; 100, a cooling device; 200, a furnace body;

[0036] 10, a cooling body; 11, a feeding passage; 111, a feeding end; 112, a discharging end; 12, a wall body; 13, a first cooling passage; 14, a flow guide member; 20, a cooling member; 21, a base; 211, a cooling medium inlet; 212, a cooling medium outlet; 22, a cooling pipe; X, a first direction. DETAILED DESCRIPTION

[0037] The embodiments of the technical solutions of the present application will be described in detail below with reference to the drawings. The following embodiments are only used to more clearly illustrate the technical solutions of the present application, and therefore only serve as examples, and cannot limit the protection scope of the present application.

[0038] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terms used herein are only for the purpose of describing specific embodiments and are not intended to limit the present application; the terms "include" and "have" and any variations thereof in the specification and claims of the present application and the above description of drawings are intended to cover non-exclusive inclusion.

[0039] In the description of the embodiments of the present application, if the technical terms "first", "second", etc. appear, they are only used to distinguish different objects, and cannot be understood as indicating or implying relative importance or implicitly indicating the number, specific order or primary and secondary relationship of the indicated technical features. In the description of the embodiments of the present application, the meaning of "a plurality of" is two or more, unless otherwise explicitly and specifically limited.

[0040] Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the present application. The appearance of the phrase in various places in the specification does not necessarily all refer to the same embodiment, nor is it necessarily independent or alternative to other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0041] In the description of the embodiments of the present application, if the term "and / or" appears, it only describes the association relationship of the associated objects, which means that there can be three relationships, for example, A and / or B, which can represent the existence of A alone, the existence of A and B together, and the existence of B alone. In addition, if the character " / " appears in this paper, it generally represents that the front and rear associated objects are in an "or" relationship.

[0042] In the description of the embodiments of the present application, if the term "a plurality of" appears, it refers to two or more (including two), and similarly, "a plurality of groups" refers to two or more groups (including two groups), and "a plurality of pieces" refers to two or more pieces (including two pieces).

[0043] In the description of the embodiments of the present application, if the technical terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the embodiments of the present application and simplifying the description, and does not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore it cannot be understood as a limitation on the embodiments of the present application.

[0044] In the description of the embodiments of the present application, unless otherwise explicitly specified and limited, if the technical terms "mounting", "connection", "connection", "fixing" and the like appear, they should be understood in a broad sense, for example, they can be fixedly connected, or they can be detachably connected, or they can be integrated; they can be mechanically connected, or they can be electrically connected; they can be directly connected, or they can be indirectly connected through an intermediate medium; they can be the communication or interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the embodiments of the present application can be understood according to the specific circumstances.

[0045] The carbon atoms of the carbonaceous material are arranged irregularly, and only by high-temperature heat treatment, the carbon atoms recrystallize and re-order, so as to present the crystal structure of graphite, thereby having the excellent properties of graphite, such as electrical conductivity, thermal conductivity, and chemical and thermal stability. Therefore, it is necessary to convert the carbonaceous material into artificial graphite material by a graphitization furnace, so as to apply the graphite material to the production and preparation of the battery negative electrode material.

[0046] The graphite material formed after the reaction has a high temperature, and if it is directly taken out from the reaction chamber, on the one hand, it is not convenient to operate, and on the other hand, the high-temperature graphite material is easy to have a secondary reaction when contacting the external air, thereby affecting the quality of the graphite material. Therefore, it is necessary to cool the graphite material after the reaction is completed.

[0047] However, the currently provided cooling device generally uses water cooling to cool the graphite material. The graphite material is passed into the cooling channel inside the cooling device, and the cooling liquid is passed into the channel wall of the cooling channel, so as to cool the graphite material in the cooling channel. Thus, the cooling effect of the part of the graphite material directly contacting the channel wall of the cooling channel is good, and the part of the graphite material which cannot directly contact the channel wall of the cooling channel cannot be well cooled, and thus has a higher temperature, so that the temperature of the graphite material is uneven.

[0048] In addition, when the water cooling is used for cooling, the channel wall of the cooling channel has a large temperature difference, so that the channel wall of the cooling channel is easy to crack under the action of internal stress, resulting in leakage of the cooling liquid, and if the cooling liquid contacts the high-temperature graphite material, a combustible and toxic gas such as carbon monoxide will be generated.

[0049] In order to improve the cooling effect of the material obtained after the reaction in the reaction chamber, some embodiments of the present application provide a cooling device, which comprises a cooling body and a cooling piece. The cooling body is provided with a feeding channel communicated with the reaction chamber. The wall body of the cooling body is provided with a first cooling channel. The feeding channel is provided with the cooling piece. The wall body and the cooling piece can jointly cool the materials at different positions in the feeding channel, improve the cooling effect of the cooling device, and uniformly cool the materials.

[0050] The cooling device disclosed in one or more embodiments of the present application can be used to cool the graphite material reacted in the furnace body of the graphitization furnace, but can also be used to cool the high-temperature material generated by other high-temperature reaction devices, which will not be described here.

[0051] One or more embodiments of the present application provide a graphitization furnace comprising a cooling device. The graphitization furnace refers to a device for high-temperature sintering of carbonaceous materials, so that carbon atoms are recrystallized and reordered, thereby being converted into artificial graphite materials.

[0052] As shown in Figure 1 Some embodiments of the present application provide a cooling device 100 for cooling the material in the furnace body 200 of the graphitization furnace 1000. The cooling device 100 comprises a cooling body 10 and a cooling piece 20. The cooling body 10 is internally provided with a feeding channel 11 for communicating with the inside of the furnace body 200. The wall body 12 of the cooling body 10 is internally provided with a first cooling channel 13, and the first cooling channel 13 is annularly arranged outside the outer periphery of the feeding channel 11. The cooling piece 20 is rotatably arranged in the feeding channel 11.

[0053] The structure of the cooling body 10 can be but is not limited to a cylindrical structure, and the cooling member 20 is rotatably arranged in the feeding channel 11 and can cool the material passing through the cooling member 20. The first cooling channel 13 of the cooling body 10 and the cooling member 20 can be supplied with liquid cooling medium or gaseous cooling medium such as water, oil, air, inert gas, etc. to cool the material flowing through the feeding channel 11.

[0054] Taking the graphitization furnace 1000 as a vertical graphitization furnace 1000 as an example, the furnace body 200 includes a reaction chamber extending along the first direction X and having a feeding end and a discharging end. The cooling device 100 is arranged at the discharging end, and when the material completes the reaction in the reaction chamber, it can leave the reaction chamber through the discharging end and enter the cooling device 100.

[0055] The cooling device 100 is started, and the cooling medium is supplied into the first cooling channel 13 of the wall body 12 and the cooling member 20. After the material enters the feeding channel 11, it is cooled, wherein the material can be roughly divided into a first part and a second part, the first part is arranged close to the wall body 12, and the second part is arranged away from the wall body 12. Because the cooling member 20 is located inside the feeding channel 11, the wall body 12 mainly cools the first part, and the cooling member 20 mainly cools the second part. Moreover, the cooling member 20 can agitate the material passing through it to accelerate the cooling speed of the material.

[0056] Because the farther away from the wall body 12 or the cooling member 20, the poorer the cooling effect of the wall body 12 and the cooling member 20, the wall body 12 is arranged at the periphery of the feeding channel 11, and the cooling member 20 is arranged inside the feeding channel 11 to cool the material at different positions in the feeding channel 11, thereby improving the cooling effect of the cooling device 100 and uniformly cooling the material.

[0057] Because the cooling effects of the wall body 12 and the cooling member 20 are different, the pressures of the cooling medium supplied into the first cooling channel 13 of the wall body 12 and the cooling member 20 are also different. The pressure of the cooling medium supplied into the first cooling channel 13 ranges from 0.2 MPa to 1.5 MPa, and the specific values of the pressure can be 0.2 MPa, 0.2 MPa, 0.6 MPa, 0.8 MPa, 1.5 MPa, and any value between any two adjacent values. In general, the pressure is set to be between 0.4 MPa and 0.55 MPa in the embodiments of the present application.

[0058] The pressure of the cooling medium supplied into the cooling member 20 ranges from 0.1 MPa to 1 MPa, and the specific values of the pressure can be 0.1 MPa, 0.2 MPa, 0.6 MPa, 0.8 MPa, 1 MPa, and any value between any two adjacent values. In general, the pressure is set to be between 0.3 MPa and 0.4 MPa in the embodiments of the present application.

[0059] As shown in Figure 1 and Figure 2 in some embodiments, the feeding passage 11 extends along a first direction X, the cooling member 20 rotates around a set axis of itself, the set axis extends along the first direction X, the cooling member 20 comprises a second cooling passage, the second cooling passage extends along the first direction X, and the second cooling passage is in communication with the feeding passage 11.

[0060] When the material enters the feeding passage 11, the material can continuously approach the cooling member 20 as the material moves. Since the second cooling passage of the cooling member 20 is in communication with the feeding passage 11, the material can enter the second cooling passage and be cooled by the cooling member 20. Since the cooling member 20 can rotate in the feeding passage 11, the material can be stirred and cooled when entering the cooling member 20, and the material can be cooled in multiple directions.

[0061] The above arrangement can cool the material in multiple directions by arranging the second cooling passage in the cooling member 20, and the cooling effect of the cooling member 20 is improved.

[0062] Further, in some embodiments, as shown in Figure 2 and Figure 3 the cooling member 20 comprises a base 21 and a plurality of cooling pipes 22, all the cooling pipes 22 are arranged on the base 21, and two adjacent cooling pipes 22 are arranged with a second cooling passage formed therebetween.

[0063] The base 21 is used to carry the cooling pipes 22, and a driving member is connected to a side of the base 21 away from the cooling pipes 22. The driving member drives the base 21 to rotate, thereby driving the cooling pipes 22 to rotate through the base 21.

[0064] Since the cooling member 20 comprises a plurality of cooling pipes 22, all the cooling pipes 22 form a plurality of second cooling passages. When the material reaches the cooling member 20, the material can be divided and enter different second cooling passages to be cooled by rotation. Based on the second cooling passages being formed by different cooling pipes 22, different materials can be cooled by the cooling pipes 22 in different second cooling passages.

[0065] In this way, the material can be divided and cooled by arranging a plurality of second cooling passages in the cooling member 20, and the cooling effect of the cooling member 20 is improved.

[0066] Further, in some embodiments, the feeding passage 11 comprises a feeding end 111 and a discharging end 112 arranged opposite along the first direction X, the cooling member 20 is arranged away from the feeding end 111, and the base 21 and the wall 12 jointly form the discharging end 112.

[0067] The cooling body 10 can be arranged to extend along the first direction X, and the first cooling channel 13 in the wall body 12 can also be arranged to extend along the first direction X. The first cooling channel 13 can extend from the feeding end 111 to the discharging end 112.

[0068] The material enters the feeding channel 11 from the feeding end 111 and is cooled by the wall body 12. As the material continuously approaches the discharging end 112, some of the material can be cooled by both the wall body 12 and the cooling member 20, and some of the material can only be cooled by the cooling member 20. When the material moves to the base 21, the agitated material can be subjected to centrifugal force and be thrown to the discharging end 112, so as to be discharged from the cooling body 10 through the discharging end 112.

[0069] In this way, the discharging mode of the material in the cooling body 10 is simplified.

[0070] Of course, in other embodiments, the first cooling channel 13 can also be arranged between the feeding end 111 and the cooling member 20, which will not be described herein again.

[0071] In some embodiments, the cooling pipe 22 is arranged to extend along the first direction X, and at least part of the cooling pipe 22 on the base 21 is projected to form a ring structure.

[0072] Because the cooling pipe 22 is arranged to extend along the first direction X, when the material moves along the first direction X, the material is always in a cooled state, that is, different parts of the cooling pipe 22 can cool different materials. When the material enters the second cooling channel, the material can rotate under the driving of the cooling pipe 22, and some of the cooling pipe 22 is arranged in a ring structure, so that the rotating material can also contact the cooling pipe 22 and be cooled.

[0073] In this way, the material can be cooled in all directions, and the cooling capacity of the cooling member 20 is improved.

[0074] In some embodiments, all the cooling pipes 22 are connected in communication, the side of the base 21 away from the cooling pipe 22 is provided with a cooling medium inlet 211 and a cooling medium outlet 212, the cooling medium inlet 211 is in communication with at least one cooling pipe 22, and the cooling medium outlet 212 is in communication with the remaining cooling pipes 22.

[0075] The side of the base 21 provided with the cooling medium inlet 211 and the cooling medium outlet 212 can be located outside the cooling body 10, so as to be connected with the conveying pipe of the cooling medium conveying device. Because all the cooling pipes 22 are connected in communication, the cooling medium entering from the cooling medium inlet 211 can flow through all the cooling pipes 22 and then flow out from the cooling medium outlet 212.

[0076] The cooling medium inlet 211 and the cooling medium outlet 212 are arranged on the base 21 to facilitate connection with the conveying pipe of the cooling medium conveying device, and the installation difficulty is reduced.

[0077] Specifically, at least one of the cooling pipes 22 is configured as an inflow pipe, and the rest are configured as outflow pipes. One end of the inflow pipe is in communication with the cooling medium inlet 211, and the other end is in communication with all the outflow pipes. Each outflow pipe is in communication with the cooling medium outlet 212 away from one end of the inflow pipe.

[0078] In some examples, the cooling member 20 includes two inflow pipes and three outflow pipes. The two inflow pipes are in communication with the cooling medium inlet 211, and the three outflow pipes are in communication with the cooling medium outlet 212.

[0079] In other examples, referring to Figure 2 and Figure 3 , the cooling member 20 includes one inflow pipe and five outflow pipes. All the outflow pipes form a ring structure, and the inflow pipe is located in the ring structure and in communication with the other outflow pipes. The cooling medium flows into the inflow pipe and flows to the outflow pipes, and finally flows out of the outflow pipes.

[0080] In this way, the connection mode between the cooling pipes 22 of the cooling member 20 is simplified to facilitate the communication of the cooling pipes 22 and the cooling medium conveying device to form a circulating channel for the cooling medium.

[0081] It should be noted that the number of cooling pipes 22 in communication with the cooling medium inlet 211 and the cooling medium outlet 212 can be determined according to actual conditions, and will not be described in detail here.

[0082] In some embodiments, the outer diameter of the cooling pipe 22 is r1, the inner diameter of the cooling pipe 22 is r2, and the ratio of r1 and r2 is in the range of 5:1 to 1.1:1. The specific value of the ratio range can be 5:1, 4:1, 3:1, 2:1, 1.1:1, and any value between adjacent two values.

[0083] By limiting the ratio range of the inner diameter and the outer diameter of the cooling member 20, the wall thickness of the cooling member 20 is limited, which can reduce the probability of damage to the cooling member 20 without affecting the heat exchange effect of the cooling member 20, and prolong the service life of the cooling member 20.

[0084] In some embodiments, along the first direction X, the inner diameter of the cross section of the cooling body 10 is R1, and the outer diameter of the cross section of the cooling body 10 is R2. The ratio of R1 and R2 is in the range of 1:1 to 1:1.8.

[0085] The specific value of the ratio range can be 1:1.1, 1:1.3, 1:1.4, 1:5, 1:1.8, and any value between adjacent values. The ratio range is generally set to 1:1.25-1:4.2 in the embodiments of the present application.

[0086] By limiting the ratio range of the inner diameter and the outer diameter of the cross section of the cooling body 10, the wall thickness of the cooling body 10 is limited, which can reduce the probability of damage to the cooling member 20 and prolong the service life of the cooling member 20 without affecting the heat exchange effect of the wall body 12 of the cooling body 10.

[0087] In some embodiments, the first cooling channel 13 extends in the first direction X, and the cooling body 10 further comprises a flow guide 14 arranged in the first cooling channel 13, the flow guide 14 being helical and extending in the first direction X.

[0088] The first cooling channel 13 has a cooling medium inlet and outlet, and after the cooling medium enters the first cooling channel 13, it can smoothly flow from the cooling medium inlet to the cooling medium outlet 212 under the action of the flow guide 14, thereby accelerating the flow speed of the cooling medium in the first cooling channel 13.

[0089] In some embodiments, the inner wall surface of the cooling body 10 is provided with a wear-resistant coating. The wear-resistant coating can be prepared by using carbide, yttrium oxide, or zirconium oxide, etc. The wear-resistant coating can be coated on the inner wall surface of the cooling body 10 by spraying or the like.

[0090] In this way, the wear resistance of the inner wall surface of the cooling body 10 is prolonged, thereby prolonging the service life of the cooling body 10.

[0091] In addition, the present application also provides a graphitization furnace 1000 comprising the cooling device 100 in the above-mentioned embodiments. Therefore, the graphitization furnace 1000 has all the beneficial effects of the cooling device 100.

[0092] Specifically, as shown in Figure 1 and Figure 2 The cooling device 100 comprises a cooling body 10 and a cooling member 20. The cooling body 10 is internally provided with a feeding channel 11 for communicating with the inside of the furnace body 200, and the wall body 12 of the cooling body 10 is internally provided with a first cooling channel 13 arranged around the outer periphery of the feeding channel 11. The cooling member 20 is rotatably arranged in the feeding channel 11. The cooling member 20 comprises a base 21 and a plurality of cooling pipes 22, all the cooling pipes 22 being arranged on the base 21, and adjacent two cooling pipes 22 being arranged with a space therebetween, and a second cooling channel being formed between the two cooling pipes 22.

[0093] The cooling device 100 is started, and cooling medium is introduced into the first cooling channel 13 of the wall body 12 and the cooling member 20, and the material is cooled after entering the feeding channel 11. The material can be roughly divided into a first part and a second part, the first part is arranged close to the wall body 12, and the second part is arranged away from the wall body 12. Because the cooling member 20 is arranged inside the feeding channel 11, the wall body 12 mainly cools the first part, and the cooling member 20 mainly cools the second part. The cooling member 20 can agitate the material passing through it to accelerate the cooling speed of the material.

[0094] When the material reaches the cooling member 20, the material can be divided into different second cooling channels 22 to be cooled by rotating. Based on the second cooling channel formed by the different cooling channels 22, different materials in different second cooling channels can be cooled by the cooling channels 22.

[0095] Because the farther away from the wall body 12 or the cooling member 20, the worse the cooling effect of the wall body 12 and the cooling member 20, the wall body 12 is arranged at the periphery of the feeding channel 11, and the cooling member 20 is arranged inside the feeding channel 11 to cool the material at different positions in the feeding channel 11, which improves the cooling effect of the cooling device 100 and can uniformly cool the material.

[0096] The technical features of the above-described embodiments can be combined in any manner. In order to make the description simple, all possible combinations of the technical features in the above-described embodiments are not described, but as long as the combinations of the technical features do not exist contradictory, they should be considered as the scope of the present application.

[0097] The above-described embodiments only express several implementation manners of the present application, and the description is more specific and detailed, but it should not be understood as a limitation on the patent scope of the application. It should be pointed out that for ordinary skilled in the art, without departing from the concept of the present application, a number of modifications and improvements can be made, which are all within the protection scope of the present application. Therefore, the patent protection scope of the present application should be subject to the appended claims.

Claims

1. A cooling device for cooling materials inside a graphitization furnace, characterized in that, The cooling device includes: The cooling body has an internal feeding channel that communicates with the interior of the furnace body. The cooling body has a first cooling channel in its wall that surrounds the outer periphery of the feeding channel. A cooling element is rotatably disposed within the feed channel.

2. The cooling device according to claim 1, characterized in that, The feeding channel extends along a first direction, the cooling component rotates around its own set axis, the set axis extends along the first direction, the cooling component includes a second cooling channel, the second cooling channel extends along the first direction and is connected to the feeding channel.

3. The cooling device according to claim 2, characterized in that, The cooling component includes a base and multiple cooling pipes, all of which are disposed on the base. Adjacent cooling pipes are spaced apart, and a second cooling channel is formed between them.

4. The cooling device according to claim 3, characterized in that, The feeding channel includes a feeding end and a discharging end arranged opposite to each other along the first direction. The cooling component is disposed away from the feeding end, and the base and the wall together form the discharging end.

5. The cooling device according to claim 3, characterized in that, The cooling pipes extend along the first direction, and at least a portion of the cooling pipes are arranged in a ring structure by their orthogonal projections onto the base.

6. The cooling device according to claim 3, characterized in that, All the cooling pipes are connected together. The base is provided with a cooling medium inlet and a cooling medium outlet on the side away from the cooling pipes. The cooling medium inlet is connected to at least one of the cooling pipes, and the cooling medium outlet is connected to the remaining cooling pipes.

7. The cooling device according to claim 6, characterized in that, At least one of the cooling pipes is configured as an inflow pipe, and the rest are configured as outflow pipes. One end of the inflow pipe is connected to the cooling medium inlet, and the other end is connected to all the outflow pipes. The end of each outflow pipe away from the inflow pipe is connected to the cooling medium outlet.

8. The cooling device according to claim 3, characterized in that, The outer diameter of the cooling pipe is r1, the inner diameter of the cooling pipe is r2, and the ratio of r1 to r2 is in the range of 5:1 to 1.1:

1.

9. The cooling device according to any one of claims 1 to 8, characterized in that, Along the first direction, the inner diameter of the cross-section of the cooling body is R1, the outer diameter of the cross-section of the cooling body is R2, and the ratio of R1 to R2 is in the range of 1:1 to 1:1.

8.

10. The cooling device according to any one of claims 1 to 8, characterized in that, The first cooling channel extends along the first direction, and the cooling body further includes a flow guide, which is disposed in the first cooling channel and is spiral-shaped and extends along the first direction.

11. The cooling device according to any one of claims 1 to 8, characterized in that, The inner wall of the cooling body is provided with a wear-resistant coating.

12. A graphitization furnace, characterized in that, Includes the cooling device as described in any one of claims 1 to 11.

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