Tubular furnace for preparing fluorocarbon anode

Abstract

The invention relates to the technical field of tube furnaces, in particular to a tube furnace for preparing a fluorocarbon anode, which comprises a rack, a mounting seat is arranged above the rack, a lifting device is arranged at the lower part of the mounting seat, a furnace body is arranged on the mounting seat, a furnace tube is arranged in the furnace body, and a heating device is arranged on the furnace tube. The furnace tube comprises a feeding part, a heating part and a discharging part which are arranged in the conveying direction of materials, plugs located on the two sides of the heating part are arranged in the furnace tube, and driving modules connected with the two plugs are arranged on the two sides of the furnace body correspondingly and used for driving the two plugs to be close to or away from the heating part. By means of the technical scheme, materials can be pushed to the middle of the furnace tube, it is guaranteed that the materials can be located in the heating part all the time in the heating process, compared with existing equipment, all operation on the materials can be achieved without increasing the heating area of the equipment, the production cost of the equipment is saved, and meanwhile the heating effect of the equipment on the materials can be improved.

Description

Technical Field

[0001] The invention relates to the technical field of tube furnaces, and in particular to a tube furnace for preparing fluorocarbon anodes. Background Art

[0002] In the preparation process of fluorocarbon anode, heating treatment is a crucial link. This step not only determines the physical and chemical properties of the fluorocarbon anode, but also directly affects the production efficiency and quality of its final product. Traditional heating equipment, such as box furnaces or muffle furnaces, often have the problem of uneven material heating during the heating process, especially when processing long strips or tubular materials, due to the different distances between different parts of the material and the heat source, resulting in significant differences in heating temperature. This heating unevenness not only prolongs the heating time and increases energy consumption, but may also cause uneven stress distribution inside the material, thereby affecting the uniformity and stability of the fluorocarbon anode, and ultimately reducing the production efficiency and quality of the product.

[0003] In order to solve the above problems, the industry began to explore the use of tubular furnaces for the preparation of fluorocarbon anodes. As a highly efficient heating device, the unique structural design of the tubular furnace allows the material to be heated more evenly during the heating process. In particular, in a tubular furnace, the material is pushed to the middle of the furnace tube for heating. This design cleverly utilizes the uniform distribution characteristics of the thermal field inside the furnace tube, ensuring that the material can obtain a consistent heating temperature during the heating process.

[0004] For example, a Chinese patent (application number 202410348268 8) discloses a tubular furnace with automatically controlled feeding, including an operating table, a heating furnace installed on the operating table, a furnace tube rotatably installed in the heating furnace, a spiral pattern is provided in the furnace tube, a collecting tube is rotatably installed at one end of the furnace tube, and a feeding tube is rotatably installed at the other end, a feeding motor is fixedly installed at one end of the feeding tube, and a screw for feeding is fixedly installed at the output end of the feeding motor. This tubular furnace with automatically controlled feeding uses an arc plate, a spring and an induction plate to sense the passability of the material in the silo, and controls the stirring motor to drive the rotating shaft and the limit block to rotate, and through the limit of the limit block by the guide groove and the limit of the telescopic block by the threaded groove in the sleeve, the rotating drum drives the wedge rod and the scraper to rotate and move downward, so as to dredge the material blocked in the silo and scrape off the crusted material on the inner wall of the silo, thereby effectively solving the problem of raw material blockage in the silo.

[0005] Although the equipment can realize automatic addition and discharge of materials, it cannot ensure that the materials are in the middle heating area of ​​the furnace tube when adding materials. This leads to the need to increase the heating area of ​​the entire equipment to avoid the phenomenon that the residual materials in some areas cannot reach the set heating temperature. However, this method will increase energy consumption and the manufacturing cost of the equipment, and also increase the footprint of the equipment. Summary of the invention

[0006] In order to solve the above problems, an embodiment of the present invention provides a tubular furnace for preparing fluorocarbon anodes. Through the design of the plug and the drive module, the material can be pushed to the middle of the furnace tube and limited, ensuring that the material is always in the heating area during heating, ensuring that all materials can complete the heating operation in the heating area.

[0007] In order to achieve the above-mentioned purpose, the embodiment of the present invention specifically adopts the following technical scheme: a tubular furnace for preparing fluorocarbon anodes, comprising a frame, a mounting seat is arranged above the frame, a lifting device is arranged below the mounting seat, a furnace body is arranged on the mounting seat, and a furnace tube is arranged in the furnace body;

[0008] The furnace tube includes a feeding part, a heating part and a discharging part arranged along the material conveying direction. The furnace tube is provided with plugs located on both sides of the heating part. Both sides of the furnace body are provided with driving modules respectively connected to the two plugs for driving the two plugs to move closer to or away from the heating part.

[0009] As a further improvement of the above technical solution:

[0010] The driving module comprises a transmission rod, one end of which is connected to the plug, and the other end of which is provided with a driving source, and the end of which is connected to the driving source is provided with a bearing seat.

[0011] The driving source includes a moving seat slidably connected along the mounting seat, a push plate connected to a transmission rod is arranged above the moving seat, a ball screw for moving forward or backward is arranged at the bottom of the moving seat, a guide rail connected to both sides of the moving seat is arranged on the mounting seat, and a rotating driving device is arranged in the middle of the transmission rod.

[0012] A boss connected to the transmission rod is arranged on one side of the plug, and a material pushing sleeve is arranged on the other side. A sealing body which fits with the inner wall of the furnace tube is arranged on the outer wall of the plug.

[0013] The pushing sleeve extends from one end connected to the plug toward the heating portion and its thickness gradually decreases. A material guide plate is arranged on the inner side wall of the pushing sleeve.

[0014] The guide plate is spiral-shaped, and its height gradually decreases as it extends from the inside of the pushing sleeve to the outside. There are multiple guide plates, which are evenly distributed along the circumferential direction of the pushing sleeve.

[0015] A storage sleeve is arranged in the heating part, connecting sleeves connected to the pushing sleeve are arranged at both ends of the storage sleeve, and a stirring device is arranged in the storage sleeve.

[0016] The thickness of the connecting sleeve gradually decreases as it extends outward from one end connected to the storage sleeve. An alignment groove is provided at the end of the connecting sleeve, and an alignment convex ridge is provided at the end of the pushing sleeve for use in conjunction with the alignment groove.

[0017] The stirring device comprises a turning plate arranged on the inner side wall of the storage sleeve, the turning plate is distributed along the length direction of the storage sleeve and the thickness of the turning plate gradually decreases from bottom to top.

[0018] There are multiple flipping plates evenly distributed along the circumferential direction of the storage sleeve. The cross section of each flipping plate is triangular, and the angle formed by one of the edges and the tangent of the storage sleeve is ≤60 degrees.

[0019] The feed part is provided with a delivery pipe located between the furnace body and the driving module, a material bin is provided on the upper part of the delivery pipe, and a discharge valve is provided in the middle part of the delivery pipe.

[0020] The discharge portion is provided with a feed pipe located between the furnace body and the driving module, and a sealing valve is provided at one end of the feed pipe connected to the furnace pipe.

[0021] The beneficial effects of the embodiments of the present invention are as follows: the tubular furnace for preparing fluorocarbon anodes comprises a frame, a mounting seat is arranged above the frame, a lifting device is arranged at the bottom of the mounting seat, a furnace body is arranged on the mounting seat, a furnace tube is arranged in the furnace body, the furnace tube comprises a feeding part, a heating part and a discharging part arranged along the conveying direction of the material, plugs are arranged on both sides of the heating part in the furnace tube, and driving modules respectively connected with the two plugs are arranged on both sides of the furnace body, which are used to drive the two plugs to approach or move away from the heating part. Through the design of the two plugs, the material can be pushed to the middle of the furnace tube, ensuring that the material can always be located in the heating part during the heating process, ensuring that all materials can obtain the set heating temperature and duration, and compared with the existing equipment, all operations on the material can be realized without increasing the heating area of ​​the equipment, saving the production cost of the equipment and improving the heating effect of the equipment on the material;

[0022] The thickness of the push sleeve gradually decreases as it extends from the end connected to the plug toward the heating part, and a ramp is formed on the inner wall of the push sleeve to prevent the material from being retained in the push sleeve when the material is pushed forward. A guide plate is provided on the inner wall of the push sleeve. The guide plate is spiral-shaped, and its height gradually decreases as it extends from the inside of the push sleeve to the outside. There are multiple guide plates and they are evenly distributed along the circumferential direction of the push sleeve. The design of the guide plate can accelerate the movement of the material when the push sleeve rotates, ensuring that the material moves to the middle of the heating part, thereby improving the heating effect on the material.

[0023] The stirring device includes a flipping plate located on the inner side wall of the storage sleeve. The flipping plates are distributed along the length direction of the storage sleeve and the thickness gradually decreases from bottom to top. There are multiple flipping plates and they are evenly distributed along the circumferential direction of the storage sleeve. The design of the flipping plates can stir the material as the storage sleeve rotates, change the heating position of the material, and make the material heated more evenly. The cross-section of each flipping plate is triangular, and the angle formed by one of the side lines and the tangent of the storage sleeve is ≤ degrees. A gap is reserved between two adjacent flipping plates, and the upper end of the previous flipping plate is located in the middle of the surface of the next flipping plate. A cavity is formed between the two adjacent flipping plates, which is used as a heat transfer chamber and plays a mobile heat storage role to avoid large fluctuations in the temperature in the storage chamber after the material disturbs the airflow in the storage sleeve during the tumbling process. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0025] Figure 2 is a cross-sectional view of the present invention;

[0026] Figure 3 It is a schematic diagram of the structure of the plug in the present invention;

[0027] Figure 4 is a cross-sectional view of the plug in the present invention;

[0028] Figure 5 It is a schematic diagram of the installation structure of the furnace tube and the plug in the present invention;

[0029] Figure 6 It is a schematic diagram of the connection structure between the plug and the storage sleeve in the present invention;

[0030] Figure 7 It is a structural schematic diagram of the furnace tube in the present invention;

[0031] Figure 8 It is a schematic diagram of the structure of the storage sleeve in the present invention;

[0032] Fig. 9 is a cross-sectional view of the storage sleeve of the present invention;

[0033] Fig.10 It is a cross-sectional view of the furnace body in the present invention.

[0034] In the figure: 1. frame; 2. mounting seat; 3. furnace body; 4. furnace tube; 5. feeding part; 6. heating part; 7. discharging part; 8. plug; 9. transmission rod; 10. driving source; 11. bearing seat; 12. moving seat; 13. push plate; 14. ball screw; 15. guide rail; 16. boss; 17. push sleeve; 18. sealing body; 19. guide plate; 20. storage sleeve; 21. connecting sleeve; 22. alignment groove; 23. alignment convex ridge; 24. turning plate; 25. conveying pipe; 26. silo; 27. discharge valve; 28. discharge pipe; 29. ​​sealing valve. DETAILED DESCRIPTION

[0035] The preferred embodiments of the present invention are described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are only used to explain the technical principles of the present invention and are not intended to limit the protection scope of the present invention.

[0036] like Figure 1-10 As shown, the tubular furnace for preparing fluorocarbon anode of the present embodiment comprises a frame 1, a mounting seat 2 is arranged above the frame 1, a lifting device is arranged at the lower part of the mounting seat 2, the lifting device adopts a hydraulic rod, the fixed end of the hydraulic rod is hinged to the frame 1, and the movable end is hinged to the lower surface of the mounting seat 2, a rotating shaft is arranged at the connection between one end of the mounting seat 2 and the frame 1, the lifting device can drive one end of the mounting seat 2 to rotate upward, thereby driving the furnace body 3 to rotate, a furnace body 3 is installed on the mounting seat 2, a furnace tube 4 is installed in the furnace body 3, the furnace tube 4 comprises a feeding part 5, a heating part 6 and a discharging part 7 which are sequentially distributed along the conveying direction of the material, the diameter of the heating part 6 is larger than the diameters of the feeding part 5 and the discharging part 7, and a heating part 6 is arranged in the furnace tube 4. The plugs 8 on both sides of the hot section 6 are respectively located in the feed section 5 and the discharge section 7. Drive modules respectively connected to the two plugs 8 are installed on both sides of the furnace body 3 to drive the two plugs 8 to approach or move away from the heating section 6. When the two plugs 8 move toward the heating section 6, they will push the materials into the heating section 6. Compared with the existing equipment, the materials can be pushed through the cooperation of the plugs 8 and the drive modules. The design of the two plugs 8 can ensure that the two ends of the furnace tube 4 are sealed while the materials can be concentrated in the position of the heating section 6, ensuring that the materials can always be located in the heating section 6 during the heating process, avoiding the materials from sliding to both sides, resulting in the heating of some materials failing to achieve the predetermined effect.

[0037] It should be noted that the furnace body 3 includes a lower shell 30 and an upper shell 31, the bottom of the lower shell 30 is fixedly connected to the mounting base 2, one side of the upper shell is hinged to the lower shell, and the other side is connected to the lower shell 30 by a buckle, and a heating chamber 32 corresponding to the position of the heating part 6 is provided in the middle of the upper shell and the lower shell, and a heating wire is installed in the heating chamber, and avoidance grooves that fit the outer wall of the furnace tube 4 are opened at both ends of the heating chamber, and a thermal insulation pad 33 is laid on the inner wall of the avoidance groove, and the position of the thermal insulation pad is coaxially distributed with the sealing body 18 when the equipment is in the operating state.

[0038] The driving module includes a transmission rod 9, one end of which is connected to the plug 8, and the other end is provided with a driving source 10 for driving the transmission rod 9 to perform lateral displacement. The end of the transmission rod 9 connected to the driving source 10 is provided with a bearing seat 11, and the driving source 10 includes a moving seat 12 slidably connected along the mounting seat 2, and a push plate 13 connected to the transmission rod 9 is provided above the moving seat 12, and the bearing seat 11 is installed on the push plate 13. The lower part of the moving seat 12 is provided with a ball screw 14 for moving forward or backward, and the mounting seat 2 is provided with a guide rail 15 movably connected to both sides of the moving seat 12, and the ball screw 1 is driven by a forward and reverse motor. 4, thereby realizing the displacement of the movable seat 12, a rotating driving device located between the feeding part 5 and the driving source 10 is installed in the middle of the transmission rod 9, and the driving device includes a servo motor, and a transmission shaft is provided at the output end of the servo motor. The transmission shaft and the transmission rod are linked by a belt or gear connection to achieve linkage, thereby driving the rotation of the transmission rod 9. It should be noted that the rotation of the transmission rod 9 is when the entire equipment is in the heating operation. Its main purpose is to stir the material to avoid uneven heating caused by accumulation of the material in the heating part. In severe cases, the material will adhere to the side wall of the furnace tube 4.

[0039] A boss 16 connected to the transmission rod 9 is provided on one side of the plug 8, a positioning plate connected to the boss 16 is provided at the end of the transmission rod 9, a pushing sleeve 17 is provided on the other side of the plug 8, a sealing body 18 fitted with the inner wall of the furnace tube 4 is provided on the outer wall of the plug 8, the main body of the plug 8 is hollow in design to improve the heat insulation capacity, a positioning ridge is provided on the outer wall in the middle of the plug 8, and a card groove corresponding to the position of the positioning ridge is provided at the bottom of the sealing body 18. When installing the sealing body 18, the sealing body 18 is positioned by the design of the positioning ridge and the card groove to avoid the sealing body 18 falling off when the plug 8 moves back and forth.

[0040] The thickness of the pushing sleeve 17 gradually decreases as it extends from the end connected to the plug 8 toward the heating part 6. A ramp is formed on the inner wall of the pushing sleeve 17 to prevent the material from being retained in the pushing sleeve 17 when the material is pushed forward. A guide plate 19 is provided on the inner wall of the pushing sleeve 17. The guide plate 19 is spiral and its height gradually decreases as it extends from the inside of the pushing sleeve 17 to the outside. There are multiple guide plates 19 and they are evenly distributed along the circumferential direction of the pushing sleeve 17. The design of the guide plate 19 can accelerate the movement of the material when the pushing sleeve 17 rotates, ensure that the material moves to the middle of the heating part 6, and enhance the heating effect on the material.

[0041] A storage sleeve 20 is provided in the heating part 6. The function of the storage sleeve 20 is to place materials. Both ends of the storage sleeve 20 are provided with connecting sleeves 21 connected to the pushing sleeve 17. The function of the connecting sleeve 21 is to drive the storage sleeve 20 and the transmission rod 9 to rotate synchronously. A stirring device is provided inside the storage sleeve 20. The stirring device can turn the material when the storage sleeve 20 rotates, so that the material is heated more evenly and the utilization of heat energy is improved.

[0042] The thickness of the connecting sleeve 21 gradually decreases from the end connected to the storage sleeve 20 to the outside. The connecting sleeve 21 is trumpet-shaped, and the thickness of the end is reduced, which can avoid the step formed between the connecting sleeve 21 and the inner wall of the furnace tube 4, and can avoid the material being squeezed and crushed by the connecting sleeve 21 and the pushing sleeve 17 when the pushing sleeve 17 pushes the material forward, resulting in a gap in the connection between the connecting sleeve 21 and the pushing sleeve 17, and then heat escapes from the gap. An alignment groove 22 is provided at the end of the connecting sleeve 21, and an alignment rib 23 is provided at the end of the pushing sleeve 17 for use with the alignment groove 22. The depth of the alignment groove 22 gradually decreases from the end away from the connecting sleeve 21 to the inside, and the end of the alignment rib 23 is beveled to match the shape of the alignment groove 22.

[0043] The stirring device includes a flipping plate 24 located on the inner wall of the storage sleeve 20. The flipping plates 24 are distributed along the length direction of the storage sleeve 20 and the thickness gradually decreases from bottom to top. There are multiple flipping plates 24 and they are evenly distributed along the circumferential direction of the storage sleeve 20. The design of the flipping plates 24 can stir the material as the storage sleeve 20 rotates, change the heating position of the material, and make the material heated more evenly. The cross-section of each flipping plate 24 is triangular, and the angle formed by one of the side lines and the tangent of the storage sleeve 20 is ≤60 degrees. A gap is reserved between two adjacent flipping plates 24. The upper end of the previous flipping plate 24 is located in the middle of the surface of the next flipping plate 24. A cavity is formed between the two adjacent flipping plates 24, which is used as a heat transfer chamber and plays a mobile heat storage role to avoid large fluctuations in the temperature of the storage sleeve 20 caused by disturbance of the airflow in the storage sleeve 20 during the tumbling process of the material.

[0044] The feed part 5 is provided with a conveying pipe 25 located between the furnace body 3 and the driving module, a silo 26 is provided on the upper part of the conveying pipe 25, and a discharge valve 27 is provided in the middle part of the conveying pipe 25. When feeding, the plug 8 located in the feed part 5 is in the initial position, and the plug 8 in the initial position is located on the outside of the conveying pipe to avoid affecting the falling of the material. When the equipment is in the feeding state, the plug 8 located in the discharge part 7 is in the first operating state to seal the discharge pipe 28 (that is, the discharge pipe 28 is sealed or located on the inner side of the discharge pipe 28) to prevent the material from rolling directly from the discharge pipe 28.

[0045] A discharge pipe 28 located between the furnace body 3 and the drive module is installed on the discharge part 7. A sealing valve 29 is installed at one end of the discharge pipe 28 connected to the furnace tube 4. The function of the sealing valve 29 is to control the discharge and cooperate with the plug 8 in the discharge part 7 to perform two-step control of the discharge.

[0046] Working principle / assembly process of this solution: First, a lifting device lifts the mounting seat 2 upward, and the mounting seat 2 drives the furnace body 3 and the furnace tube 4 from a horizontal state to an inclined state, and the inclination angle is 10-20 degrees. After the mounting seat 2 completes the inclination operation, the plug 8 located in the discharge portion 7 moves toward the heating portion 6 under the action of the driving module. When the plug 8 moves to the discharge pipe 28 or moves to the inner side of the discharge pipe 28, it can ensure that the cloth will not stop moving after falling at the discharge pipe 28. At this time, the plug 8 in the feed portion is in the initial position (that is, the plug 8 in the feed portion 5 is located on the outer side of the conveying pipe 25 at this time), and then the discharge valve 27 is opened, and the material falls into the furnace tube 4. At this time, the material loading is completed;

[0047] After the set amount is filled, the lifting device is reset and the mounting seat 2 is restored to a horizontal state. At this time, the plug 8 in the feeding portion 5 is pushed forward by the driving module. During the pushing process, the material will be pushed into the heating portion 6. At this time, the plug 8 in the discharging portion 7 also continues to move forward to the working position (i.e., the state of abutting with the storage sleeve 20). At this time, it can be ensured that all the materials are gathered in the heating portion 6. After the pushing operation is completed, the rotary drive device is turned on to drive the plug 8 to rotate. During the rotation process, the material in the pushing sleeve 17 will move toward the heating portion 6 under the action of the ramp formed by its side wall and the guide plate 19. Finally, the material enters the storage sleeve 20 for heating. The reason why the push sleeve 17 is designed here is to form a sealed chamber at both ends of the heating part 6, to isolate the two ends of the heating part 6, so that the heat can stay, and to provide a buffer for the heat loss of the heating part 6. At the same time, the hollow design of the push sleeve 17 is to prevent the material from being excessively accumulated on the side wall of the plug 8 when the material is pushed forward, causing too much resistance to the advancement of the plug. A part of the material can be collected in the push sleeve 17 first, which will reduce the forward resistance of the plug 8, and at the same time, it can also avoid the phenomenon of excessive accumulation of materials causing mutual pressure and damage;

[0048] During the heating process, the push-pull sleeves 17 at the front ends of the two plugs 8 will abut against the storage sleeve 20. At this time, the alignment grooves 22 and the alignment ridges 23 are engaged, and the storage sleeve 20 will rotate under the drive of the push-pull sleeve 17. At this time, the material rolls in the storage sleeve 20, which can improve the heating efficiency of the material.

[0049] It should be noted that in the description of the present invention, the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicating directions or positional relationships are based on the directions or positional relationships shown in the drawings, which are only for the convenience of description, and do not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0050] In addition, it should be noted that in the description of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0051] The term "comprise" or any other similar term is intended to cover a non-exclusive inclusion, such that a process, article, or apparatus / device that includes a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, article, or apparatus / device.

[0052] So far, the technical solutions of the present invention have been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it is easy for those skilled in the art to understand that the protection scope of the present invention is obviously not limited to these specific embodiments. Without departing from the principle of the present invention, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will fall within the protection scope of the present invention.

Claims

1. A tubular furnace for preparing fluorocarbon anodes, comprising a frame (1), characterized in that: A mounting seat (2) is arranged above the frame (1), a lifting device is arranged below the mounting seat (2), a furnace body (3) is arranged on the mounting seat (2), and a furnace tube (4) is arranged inside the furnace body (3); The furnace tube (4) comprises a feeding portion (5), a heating portion (6) and a discharging portion (7) arranged along the conveying direction of the material; plugs (8) are arranged in the furnace tube (4) and are located on both sides of the heating portion (6); and driving modules respectively connected to the two plugs (8) are arranged on both sides of the furnace body (3) for driving the two plugs (8) to move closer to or away from the heating portion (6).

2. The tubular furnace for preparing fluorocarbon anode according to claim 1, characterized in that: The driving module comprises a transmission rod (9), one end of the transmission rod (9) is connected to the plug (8), the other end is provided with a driving source (10), and the end of the transmission rod (9) connected to the driving source (10) is provided with a bearing seat (11).

3. The tubular furnace for preparing fluorocarbon anode according to claim 2, characterized in that: The driving source (10) comprises a moving seat (12) slidably connected along the mounting seat (2), a push plate (13) connected to the transmission rod (9) is arranged above the moving seat (12), a ball screw (14) for moving forward or backward is arranged at the bottom of the moving seat (12), a guide rail (15) connected to both sides of the moving seat (12) is arranged on the mounting seat (2), and a rotation driving device is arranged in the middle of the transmission rod (9).

4. The tubular furnace for preparing fluorocarbon anode according to claim 2, characterized in that: A boss (16) connected to the transmission rod (9) is provided on one side of the plug (8), and a material pushing sleeve (17) is provided on the other side. A sealing body (18) is provided on the outer wall of the plug (8) and is in contact with the inner wall of the furnace tube (4).

5. The tubular furnace for preparing fluorocarbon anode according to claim 4, characterized in that: The pushing sleeve (17) extends from one end connected to the plug (8) toward the heating portion (6) and its thickness gradually decreases. A material guide plate (19) is provided on the inner side wall of the pushing sleeve (17).

6. The tubular furnace for preparing fluorocarbon anode according to claim 5, characterized in that: The guide plate (19) is spiral-shaped and gradually decreases in height as it extends outward from the inside of the pushing sleeve (17). There are multiple guide plates (19) and they are evenly distributed along the circumferential direction of the pushing sleeve (17).

7. The tubular furnace for preparing fluorocarbon anode according to claim 4, characterized in that: A storage sleeve (20) is arranged in the heating portion (6), connecting sleeves (21) connected to the material pushing sleeve (17) are arranged at both ends of the storage sleeve (20), and a stirring device is arranged in the storage sleeve (20).

8. The tubular furnace for preparing fluorocarbon anode according to claim 7, characterized in that: The thickness of the connecting sleeve (21) gradually decreases as it extends outward from the end connected to the storage sleeve (20), the end of the connecting sleeve (21) is provided with an alignment groove (22), and the end of the pushing sleeve (17) is provided with an alignment convex ridge (23) used in conjunction with the alignment groove (22).

9. The tubular furnace for preparing fluorocarbon anode according to claim 7, characterized in that: The stirring device comprises a turning plate (24) arranged on the inner side wall of the storage sleeve (20); the turning plate (24) is distributed along the length direction of the storage sleeve (20) and the thickness gradually decreases from bottom to top.

10. The tubular furnace for preparing fluorocarbon anode according to claim 9, characterized in that: The flipping plates (24) are multiple in number and evenly distributed along the circumferential direction of the storage sleeve (20); the cross section of each flipping plate (24) is triangular, and the angle formed by one of its edges and the tangent line of the storage sleeve (20) is ≤60 degrees.

11. The tubular furnace for preparing fluorocarbon anode according to claim 1, characterized in that: The feed portion (5) is provided with a delivery pipe (25) located between the furnace body (3) and the drive module, a material bin (26) is provided at the upper part of the delivery pipe (25), and a discharge valve (27) is provided at the middle part of the delivery pipe (25).

12. The tubular furnace for preparing fluorocarbon anode according to claim 1, characterized in that: The discharge portion (7) is provided with a feed pipe (28) located between the furnace body (3) and the drive module, and a sealing valve (29) is provided at one end of the feed pipe (28) connected to the furnace tube (4).

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