An internal heating precision ceramic rotary atmosphere furnace

Abstract

The present invention discloses an internal heating precision ceramic rotary atmosphere furnace, which relates to the field of ceramic rotary atmosphere furnaces and aims to solve the problem of uneven feeding of furnace tubes in traditional ceramic rotary atmosphere furnaces. The key points of the technical solution are as follows: the furnace tubes include a placing rack, a feeding rack is arranged at one end of the placing rack close to a feeding tube, a buffer tube is arranged on the feeding rack, a feeding hole is opened at one end of the buffer tube away from the placing rack, a feeding shell is connected to the bottom wall of the buffer tube, the feeding shell is arranged along the radial direction of the buffer tube, a discharge tube is connected to the end of the feeding shell close to the barrel body, and the discharge tube is rotatably penetrated in the feeding tube; a spiral feeder is rotatably penetrated in the feeding shell, and a smoothing device for smoothing the material on the bottom wall of the buffer tube is arranged on the top wall of the buffer tube. The present invention achieves the effect of uniformly adding the material into the inner furnace tube.

Description

Technical Field

[0001] The present invention relates to the technical field of ceramic rotary atmosphere furnaces, and in particular to an internal heating precision ceramic rotary atmosphere furnace Background Art

[0002] As we all know, there are many materials in the world today, such as lithium battery materials, activated carbon materials, metal powder materials, catalyst materials, etc. However, no matter what kind of material, if it evolves from raw materials to civil and industrial products, it is inseparable from the process of calcination and sintering. Compared with traditional metallurgical rotary kilns, cement rotary kilns, etc., powder calcination equipment often requires more precision, generally using static and semi-dynamic methods; static calcination equipment is easy to maintain, but there are problems such as insufficient calcination and unstable product quality due to uneven heating of materials; semi-dynamic calcination equipment is easy to fail due to mechanical transmission parts and inconvenient maintenance because it works under high temperature; At present, various chemical powder material industries in my country are developing rapidly, especially with the blowout development of new energy vehicles and electronic consumer products, the demand for battery powder materials, the core of new energy technology, has increased dramatically, especially in the field of lithium-ion batteries, the demand for battery powder materials has increased significantly, and thus, the atmosphere rotary furnace for dynamic sintering of materials has become the mainstream equipment for calcining battery powder materials.

[0003] The existing ceramic rotary atmosphere furnace includes a placing rack, on which a barrel for calcining materials is arranged, an inner furnace tube for placing materials is arranged inside the barrel, and heating modules for heating materials are arranged on the inner and outer walls of the inner furnace tube. A feeding device for feeding materials into the inner furnace tube is arranged at one end of the barrel in the length direction, and a discharging device is arranged at the end of the barrel away from the feeding device. A driving device for driving the barrel to rotate is arranged at the end of the placing rack close to the feeding device. The driving device includes a motor arranged on the placing rack, a driving gear is sleeved on the motor, and a driven rack is arranged on the outer wall of the barrel, and a driving chain is sleeved on the driven rack and the driving gear. The motor can drive the barrel to rotate through the driving chain. In order to enable the barrel to rotate during the placement on the placing rack, a supporting wheel group of the barrel is arranged at both ends in the length direction of the placing rack. In order to facilitate the sliding of materials in the inner furnace tube, the barrel is slightly tilted toward the discharging when it is installed on the placing rack. The device is inclined in direction, and the operator needs to add target material into the inner furnace tube through the feeding device; an exhaust shell is provided at one end of the barrel body in the length direction, an exhaust pipe connected to the inner furnace tube is provided in the exhaust shell, and an exhaust hole connected to the exhaust shell is provided on the part of the exhaust pipe side wall located in the exhaust shell; the exhaust shell is connected to an exhaust pipe at one end away from the barrel body, and an exhaust hole for discharging exhaust gas is provided on the outer wall of the exhaust pipe; the material is calcined in the inner furnace tube through the heating module, and a feeding tube for adding material to the inner furnace tube is provided in the exhaust tube. When the operator needs to calcine the material, he only needs to add the material into the feeding tube, and the material enters the inner furnace tube through the feeding tube. At the same time, the driving device is started to drive the barrel body to rotate. When the material is calcined, it will be discharged from the discharging device, and the exhaust gas in the inner furnace tube can enter the exhaust shell through the exhaust pipe, and the exhaust gas in the exhaust shell can be discharged from the outlet through the exhaust pipe.

[0004] The above-mentioned prior art solution has the following defects: if the material entering the inner furnace tube is intermittent, or sometimes more and sometimes less, it will lead to uneven calcination due to uneven materials in the inner furnace tube at the same heating temperature, which will ultimately affect the calcination quality of the material. Therefore, the uniform entry of the material into the inner furnace tube has become a problem that the staff must solve. Summary of the invention

[0005] The object of the present invention is to provide an internally heated precision ceramic rotary atmosphere furnace, which has the effect of uniformly adding materials into an inner furnace tube.

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] A kind of internal heating precision ceramic rotary atmosphere furnace, comprises a placing rack, a barrel body is rotatably arranged on the placing rack, an inner furnace tube for calcining materials is arranged in the barrel body, an exhaust shell is arranged at one end of the barrel body in the length direction, an exhaust pipe is arranged at the end of the exhaust shell away from the barrel body, a feeding pipe for feeding materials into the inner furnace tube is passed through the exhaust pipe, a feeding rack is arranged at the end of the placing rack close to the feeding pipe, a buffer tube is arranged on the feeding rack, a feeding hole is opened at the end of the buffer tube away from the placing rack, the bottom wall of the buffer tube is connected with the feeding shell, the feeding shell is arranged along the radial direction of the buffer tube, the end of the feeding shell close to the barrel body is connected with a discharge tube, and the discharge tube is rotatably passed through the feeding tube; a spiral feeder is rotatably passed through the feeding shell, and a smoothing device for smoothing the material on the bottom wall of the buffer tube is arranged on the top wall of the buffer tube.

[0008] By adopting the above technical scheme, the spiral feeder rotates in the feeding trough to feed the materials in the buffer barrel into the feeding barrel at equal intervals. Then, in order to ensure that the buffer barrel always covers the feeding trough, it is necessary to ensure that there is no lack of materials in the buffer barrel. However, the flow of materials into the feeding trough cannot be controlled, which will cause uneven leakage above the feeding trough. By continuously rotating the smoothing device above the feeding trough, the materials above the feeding trough are always smoothed into a flat surface, thereby preventing the problem of uneven leakage of materials above the feeding trough, and further ensuring that the materials in the buffer barrel are always evenly added to the discharge barrel. The uniform entry of materials in the discharge barrel will, to a certain extent, lead to the uniform entry of materials in the inner furnace tube.

[0009] Furthermore, the feeding shell forms a feeding trough on the bottom wall of the buffer barrel, and the smoothing device includes a disassembly plate detachably arranged on the top wall of the barrel body, a rotating motor is arranged on the disassembly plate, a smoothing rod is arranged on the rotating motor, and a sweeping rod is arranged at one end of the smoothing rod away from the rotating motor, and the rotation trajectory of the sweeping rod is parallel to the bottom wall of the buffer barrel.

[0010] By adopting the above technical solution, the leveling rod is driven to rotate by the rotating motor, and the leveling rod drives the sweeping rod to continuously sweep the material on the feeding trough, thereby ensuring the uniform leakage of the material on the feeding trough.

[0011] Furthermore, the end of the feeding shell close to the barrel body is connected to a feeding pipe, and the end of the feeding pipe away from the feeding shell is connected to a discharging pipe. The discharging pipe is arranged perpendicular to the feeding pipe, one end of the discharging pipe is connected to the discharge barrel, and the other end of the discharging pipe is provided with an inspection hole.

[0012] By adopting the above technical solution, the inspection hole can facilitate the operator to monitor and inspect the material discharging pipe, prevent the material discharging pipe from being blocked, and can also clean the material discharging pipe, thereby increasing the service life of the material discharging pipe.

[0013] Furthermore, a vibrator is provided on the outer wall of the discharge barrel corresponding to the placement rack, and the vibrating end of the vibrator is connected to the outer wall of the discharge barrel; a flexible sealing sleeve is provided on one end of the outer wall of the discharge barrel close to the feed barrel, and the sealing sleeve is rotatably covered on the end face of the feed barrel, and a flexible connecting tube is provided on one end of the outer wall of the discharge barrel close to the feeding tube, and the end of the connecting tube away from the discharge barrel is fixed on the discharging pipe.

[0014] By adopting the above technical scheme, the barrel body is placed at an angle, and the material in the feeding barrel enters into the discharging barrel through the feeding pipe. In order to make the material in the discharging barrel enter into the feeding barrel evenly, a vibrator is arranged on the placing frame, and the discharging barrel is flexibly connected to the feeding barrel through a sealing sleeve. In this way, the vibrator regularly drives the discharging barrel to vibrate, thereby ensuring that the material entering into the feeding barrel from the discharging barrel is balanced, thereby playing a role in evenly delivering the material in the discharging barrel into the feeding barrel. By working evenly in feeding and feeding, it is ensured that the material entering the inner furnace tube is uniform.

[0015] Furthermore, a rotating ring is provided on the end face of the feed barrel close to the discharge barrel, a magnet is fixedly connected to one side of the rotating ring close to the discharge barrel, and a suction cup ring for adsorbing the magnet is provided on the side of the sealing sleeve away from the discharge barrel.

[0016] By adopting the above technical scheme, the feed cylinder and the discharge cylinder are rotatably connected together through the rotating ring, the magnet box suction cup ring, because the discharge cylinder is connected to the feeding cylinder, the feeding cylinder is fixed on the placement rack, the feed cylinder is connected to the barrel body, and the barrel body is rotatably set on the placement rack. In order to solve the contradiction between the movement state of the feed cylinder and the discharge cylinder, the feed cylinder and the discharge cylinder can be connected by magnetic attraction, and the relative movement contradiction between the feed cylinder and the discharge cylinder can be solved.

[0017] Furthermore, the rotating ring has a plurality of rotating holes evenly distributed along its axial direction, the magnets are embedded in the rotating holes, and the suction cup ring is arranged in contact with the rotating surface; a clamping plate is arranged on the side of the sealing sleeve away from the suction cup ring, and the clamping plate and the suction cup ring are fixed to the sealing sleeve through connecting bolts.

[0018] By adopting the above technical solution, if the number of rotating holes is large, magnets can be selectively arranged in the rotating holes. The number of magnets directly determines the connection stability between the suction cup ring and the rotating ring, and can also determine the friction between the suction cup ring and the rotating ring, thereby playing a role in flexibly adjusting the magnetic force between the suction cup ring and the rotating ring; the sealing sleeve can be fixed on the suction cup ring through the clamping plate and the connecting bolt.

[0019] Furthermore, an annular connecting ring plate is provided at one end of the cache cylinder far from the feeding rack, a mounting groove is provided on the connecting ring plate, the disassembly plate covers the mounting groove, positioning plates for limiting the position of the disassembly plate are provided at both ends of the periphery of the connecting ring plate along its radial direction, positioning grooves for locking the positioning plate are provided on the periphery of the disassembly plate, and clamps for clamping the disassembly plate and the connecting ring plate are provided on the positioning plate.

[0020] By adopting the above technical solution, the disassembly plate is covered on the connecting ring plate, and then the rotating motor, the smoothing rod and the sweeping rod are placed in the buffer cylinder. When the sweeping rod sweeps the material in the buffer cylinder for a long time and the sweeping rod needs to be replaced or repaired, the disassembly plate can be removed from the connecting ring plate by simply loosening the clamp pressing on the disassembly plate. At the same time, the sweeping rod on the disassembly plate can also be removed for replacement and repair, thereby making it convenient for the operator to repair the feeder.

[0021] Furthermore, the disassembly plate is provided with a placement groove corresponding to the position of the rotating motor, the disassembly plate is provided with a placement shell on one side close to the cache tube, the placement shell covers the placement groove, the rotating motor is fixed in the placement shell, and the disassembly plate is provided with a covering plate covering the placement groove.

[0022] By adopting the above technical scheme, the rotating motor is placed in the placement shell through the placement groove. The placement shell can prevent the rotating motor from being exposed on the disassembly plate, thereby protecting the rotating motor. The placement groove is covered by the covering plate to prevent foreign debris from falling into the placement groove, thereby further preventing the rotating motor from being damaged by external factors, thereby further improving the service life of the rotating motor.

[0023] Furthermore, a connecting rod is provided on the rotating motor, a connecting hole is provided at one end of the smoothing rod close to the rotating motor, the connecting rod is inserted into the connecting hole, a connecting plate is provided on the sweeping rod, and a connecting groove is provided at one end of the smoothing rod close to the sweeping rod for inserting the connecting groove.

[0024] By adopting the above technical scheme, the smoothing rod can be detachably mounted on the rotating motor through the connecting hole and the connecting rod, thereby facilitating the replacement of the smoothing rod on the rotating motor, and the sweeping rod can be detachably connected to the smoothing rod through the connecting groove and the connecting plate, thereby facilitating the maintenance of the sweeping rod.

[0025] In summary, the beneficial technical effects of the present invention are:

[0026] 1. The buffer cylinder and smoothing device are used to achieve the effect of uniform feeding into the discharge cylinder;

[0027] 2. Vibrator, sealing sleeve and connecting pipe are used to evenly add the material in the discharge barrel to the feed barrel;

[0028] 3. Disassembly plates, clamps and connecting ring plates are used to facilitate the maintenance of the feeding device. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0030] Figure 2 It is a schematic diagram of the cross-sectional structure of the cache cylinder in the present invention;

[0031] Figure 3 for Figure 2 A schematic diagram of the enlarged structure of the middle part A;

[0032] Figure 4 for Figure 3 A schematic diagram of the enlarged structure of the middle B part;

[0033] Figure 5 for Figure 1 The enlarged structural diagram of the middle C part;

[0034] Figure 6 It is a schematic diagram of the cross-sectional structure of the cache cylinder in the present invention;

[0035] Figure 7 for Figure 6 The enlarged structural diagram of the middle D part;

[0036] Figure 8 for Figure 7 The enlarged structural diagram of the middle E part;

[0037] Fig. 9 for Figure 6 The enlarged structural diagram of the middle F part;

[0038] Fig.10 It is a schematic diagram of the cross-sectional structure of the exhaust shell in the present invention;

[0039] Fig.11 for Fig.10 A schematic diagram of the enlarged structure of the middle G section;

[0040] Fig.12 It is a schematic diagram of the cross-sectional structure of the exhaust pipe in the present invention;

[0041] Fig.13 for Fig.12 A schematic diagram of the enlarged structure of the middle H section;

[0042] Fig.14 for Fig.13 Schematic diagram of the enlarged structure of part I in the middle.

[0043] In the figure, 1, a placing rack; 11, a barrel; 12, an inner furnace tube; 2, a vibrator; 21, a sealing sleeve; 22, a connecting pipe; 3, an exhaust shell; 31, an exhaust pipe; 32, a feeding barrel; 33, a rotating ring; 34, a magnet; 35, a suction cup ring; 36, a rotating hole; 37, a clamping plate; 38, a connecting bolt; 4, a feeding rack; 41, a buffer barrel; 42, a feeding hole; 43, a feeding shell; 44, a discharging barrel; 5, a connecting ring plate; 51 , mounting groove; 52, positioning plate; 53, positioning groove; 54, clamp; 55, placement groove; 56, placement shell; 57, covering plate; 6, smoothing device; 61, disassembly plate; 62, rotating motor; 63, smoothing rod; 64, sweeping rod; 65, connecting rod; 66, connecting hole; 67, connecting plate; 68, connecting groove; 7, screw feeder; 71, feeding trough; 72, feeding pipe; 73, discharging pipe; 74, inspection hole. DETAILED DESCRIPTION

[0044] The present invention is further described in detail below in conjunction with the accompanying drawings.

[0045] Reference Figure 1 , which is an internal heating precision ceramic rotary atmosphere furnace disclosed by the present invention, comprises a placing rack 1, on which a barrel body 11 is rotatably arranged, in order to prevent the outer wall of the barrel body 11 from being directly rubbed by rotation, annular wheel belts are arranged at both ends of the barrel body 11 in the length direction, and a supporting wheel group is arranged at the position of the placing rack 1 corresponding to the wheel belt, at this time, the rotation of the barrel body 11 will be reflected on the wheel belt and the supporting wheel group, so as to protect the barrel body 11, and an inner furnace tube 12 for placing materials is arranged in the barrel body 11, and powdered materials are added in the inner furnace tube 12. After the materials in the inner furnace tube 12 are calcined, waste gas will be generated, and in order to discharge the waste gas in the barrel body 11, an exhaust shell 3 is arranged at one end of the barrel body 11 in the length direction. An exhaust pipe 31 is connected to one end of the exhaust shell 3 away from the barrel body 11, and an inner furnace pipe 12 for calcining materials is arranged in the barrel body 11. A feed pipe 32 for feeding materials into the inner furnace pipe 12 is penetrated in the exhaust pipe 31, and a discharge pipe 44 is rotatably penetrated in the feed pipe 32. When the operator needs to add materials to the inner furnace pipe 12, he only needs to add materials to the discharge pipe 44. A driving device for driving the barrel body 11 to rotate is arranged at one end of the placement rack 1, and the driving device includes a motor arranged on the placement rack 1, and a driving gear is sleeved on the motor. A driven rack is arranged on the outer wall of the barrel body 11, and a driving chain is sleeved on the driven rack and the driving gear. The motor can drive the barrel body 11 to rotate through the driving chain.

[0046] Reference Figure 2 , Figure 3 and Figure 4, one end of the placement rack 1 close to the feeding cylinder 32 is provided with a feeding rack 4. A buffer cylinder 41 is arranged on the feeding rack 4. The buffer cylinder 41 is made of a transparent material. The bottom wall of the buffer cylinder 41 is provided with a feeding shell 43 with a U-shaped cross-section. The feeding shell 43 and the buffer cylinder 41 are communicated. A spiral feeder 7 is arranged in the feeding shell 43. One end of the feeding shell 43 far from the buffer cylinder 41 is communicated with a discharging cylinder 44. The discharging cylinder 44 is rotatably connected in the feeding cylinder 32. A feeding hole 42 is opened on the top wall of the buffer cylinder 41. A feeding hopper is inserted into the feeding hole 42. A flattening device 6 for flattening the materials on the bottom wall of the buffer cylinder 41 is arranged on the top wall of the buffer cylinder 41; the spiral feeder 7 can continuously feed materials into the discharging cylinder 44 quantitatively. The operator always adds materials into the buffer cylinder 41 through the feeding hole 42 to keep the materials in the buffer cylinder 41 spread in the feeding shell 43. In order to prevent uneven leakage of materials above the feeding area, the flattening device 6 needs to be continuously started so that the materials above the feeding shell 43 are always in a flat state; a feeding groove 71 is formed between the bottom wall of the feeding shell 43 and the buffer cylinder 41. The spiral feeder 7 is arranged in the feeding groove 71. The flattening device 6 includes a dismounting plate 61 arranged on the top wall of the buffer cylinder 41. A rotating motor 62 is arranged on the dismounting plate 61. A flattening rod 63 is arranged on the rotating motor 62. The flattening rod 63 vertically points to the bottom wall of the buffer cylinder 41. A sweeping rod 64 is arranged at one end of the flattening rod 63 far from the rotating motor 62. The sweeping rod 64 is arranged along the radial direction of the buffer cylinder 41. In this way, as long as the flattening rod 63 is rotated to drive the sweeping rod 64 to rotate, the sweeping rod 64 will continuously form a rotating plane on the bottom wall of the buffer cylinder 41, and this rotating plane will continuously sweep the materials above the feeding groove 71 into a flat plane; one end of the feeding shell 43 far from the buffer cylinder 41 is connected with a feeding pipe 72. One end of the feeding pipe 72 far from the buffer cylinder 41 is connected with a discharging pipe 73. The discharging pipe 73 and the feeding pipe 72 are perpendicular to each other. One end of the discharging pipe 73 is communicated in the discharging cylinder 44. The other end of the discharging pipe 73 is provided with a maintenance hole 74.

[0047] Referring to Figure 5 , Figure 6 and Figure 7 , a circular connecting ring plate 5 is arranged on the top wall of the buffer cylinder 41. An installation groove 51 is arranged inside the connecting ring plate 5. The dismounting plate 61 covers the installation groove 51. Positioning plates 52 are arranged at both ends of the connecting ring plate 5 in the radial direction. Positioning grooves 53 are opened on the dismounting plate 61 corresponding to the positions of the positioning plates 52. The positioning plates 52 are clamped in the positioning grooves 53. A clamping plier 54 is arranged on the side of the positioning plate 52 far from the buffer cylinder. The operator can press the dismounting plate 61 on the connecting ring plate 5 with the clamping plier 54. When the operator needs to repair the sweeping rod 64, as long as the clamping plier 54 is opened, the sweeping rod 64 can be taken out from the installation groove 51; a placement groove 55 is opened on the dismounting plate 61 corresponding to the position of the rotating motor 62. A placement shell 56 for placing the rotating motor 62 is arranged in the placement groove 55. A cover plate 57 covering the placement groove 55 is arranged on the dismounting plate 61.

[0048] Reference Figure 8 and Fig. 9 A connecting rod 65 is provided at the rotating end of the rotating motor 62, a connecting hole is provided at one end of the smoothing rod 63 close to the connecting rod 65, and the connecting rod 65 is inserted into the connecting hole 66, which can increase the connection area between the connecting rod 65 and the connecting hole 66. A connecting plate 67 is provided at the midpoint of the length direction of the smoothing rod 64, and a connecting groove 68 for inserting the connecting plate 67 is provided at one end of the smoothing rod 63 away from the rotating motor 62.

[0049] Reference Fig.10 and Fig.11 A feeding pipe 72 is provided on the outer wall of the feeding barrel, and the end of the feeding pipe 72 away from the buffer barrel 41 is connected to a discharging pipe 73, and the discharging pipe 73 is connected to a flexible connecting pipe 22, and the end of the connecting pipe 22 away from the discharging pipe 73 is connected to the discharge barrel 44. In order to allow the material in the discharge barrel 44 to enter the feeding barrel 32 evenly, a vibrator 2 is arranged on the placement rack 1, and the vibrating end of the vibrator 2 is connected to the outer wall of the discharge barrel 44, and the material in the discharge barrel 44 can be ensured to enter the feeding barrel 32 evenly through vibration of the same frequency.

[0050] Reference Fig.12 , Fig.13 and Fig.14 The end surface of the feed barrel 32 away from the barrel body 11 is fixedly provided with a rotating ring 33, and a magnet 34 is arranged in the rotating ring 33. The end of the outer wall of the discharge barrel 44 close to the barrel body 11 is sleeved with a flexible sealing sleeve 21, and the end of the sealing sleeve 21 close to the feed barrel 32 is connected to a suction cup ring 35. The suction cup ring 35 covers the surface of the rotating ring 33 and is sucked by the magnet 34. In this way, even if there is a contradiction in the rotation state of the discharge barrel 44 and the feed barrel 32, it will be solved by the relative rotation of the suction cup ring 35 and the rotating ring 33, and the magnet 34 will always suck the suction cup ring 35, thereby playing the role of connecting the discharge barrel 44 to the feed barrel 32. A clamping plate 37 is provided on the side of the suction cup ring 35 away from the rotating ring 33. The clamping plate 37 clamps the sealing sleeve 21 on the suction cup ring 35, and then the clamping plate 37 is pressed on the suction cup ring 35 through the connecting bolt 38; a rotating hole 36 for placing the magnet 34 is opened on the rotating ring 33, and a plurality of rotating holes 36 are opened along the extension direction of the rotating ring 33. The operator can selectively install the magnet 34 in the plurality of rotating holes 36 as needed. Controlling the number of magnets 34 on the rotating ring 33 means controlling the adsorption force of the rotating ring 33 on the suction cup ring 35, thereby improving the flexibility of the adsorption force of the magnet 34 on the rotating ring 33.

[0051] The embodiments of this specific implementation method are all preferred embodiments of the present invention, and are not intended to limit the protection scope of the present invention. Therefore, any equivalent changes made based on the structure, shape, and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. An internally heated precision ceramic rotary atmosphere furnace, comprising a placement rack (1), a barrel (11) being rotatably arranged on the placement rack (1), an inner furnace tube (12) for calcining materials being arranged in the barrel (11), an exhaust shell (3) being arranged at one end in the length direction of the barrel (11), an exhaust pipe (31) being arranged at one end of the exhaust shell (3) away from the barrel (11), a feeding pipe (32) for feeding materials into the inner furnace tube (12) being arranged in the exhaust pipe (31), characterized in that: A feeding rack (4) is arranged at one end of the placement rack (1) close to the feed barrel (32), a buffer barrel (41) is arranged on the feeding rack (4), a feed hole (42) is opened at one end of the buffer barrel (41) away from the placement rack (1), a feeding shell (43) is connected to the bottom wall of the buffer barrel (41), the feeding shell (43) is arranged along the radial direction of the buffer barrel (41), and the feeding shell (43) is connected to a discharge barrel (44) at one end close to the barrel body (11), and the discharge barrel (44) is rotatably inserted into the feed barrel (32); a screw feeder (7) is rotatably inserted into the feeding shell (43), and a smoothing device (6) for smoothing the material on the bottom wall of the buffer barrel (41) is arranged on the top wall of the buffer barrel (41); The feeding shell (43) is formed with a feeding trough (71) on the bottom wall of the buffer cylinder (41); the smoothing device (6) comprises a disassembly plate (61) arranged on the top wall of the barrel body (11); a rotating motor (62) is arranged on the disassembly plate (61); a smoothing rod (63) is arranged on the rotating motor (62); a sweeping rod (64) is arranged at one end of the smoothing rod (63) away from the rotating motor (62); and the rotation trajectory of the sweeping rod (64) is parallel to the bottom wall of the buffer cylinder (41); The end of the feeding shell (43) close to the barrel (11) is connected to a feeding pipe (72), and the end of the feeding pipe (72) away from the feeding shell (43) is connected to a discharging pipe (73). The discharging pipe (73) is arranged perpendicular to the feeding pipe (72), one end of the discharging pipe (73) is connected to the discharge barrel (44), and the other end of the discharging pipe (73) is provided with an inspection hole (74); The placement rack (1) is provided with a vibrator (2) on the outer wall corresponding to the discharge barrel (44), and the vibrating end of the vibrator (2) is connected to the outer wall of the discharge barrel (44); a flexible sealing sleeve (21) is sleeved on one end of the outer wall of the discharge barrel (44) close to the feed barrel (32), and the sealing sleeve (21) is rotatably covered on the end surface of the feed barrel (32); a flexible connecting pipe (22) is provided on one end of the outer wall of the discharge barrel (44) close to the feeding pipe (72), and the end of the connecting pipe (22) away from the discharge barrel (44) is fixed on the discharge pipe (73).

2. The internal heating precision ceramic rotary atmosphere furnace according to claim 1 is characterized in that: A rotating ring (33) is provided on the end surface of the feed barrel (32) close to the discharge barrel (44); a magnet (34) is fixedly connected to one side of the rotating ring (33) close to the discharge barrel (44); and a suction cup ring (35) for attracting the magnet (34) is provided on the side of the sealing sleeve (21) away from the discharge barrel (44).

3. The internal heating precision ceramic rotary atmosphere furnace according to claim 2 is characterized in that: The rotating ring (33) is evenly distributed with a plurality of rotating holes (36) along its axial direction, the magnet (34) is embedded in the rotating hole (36), and the suction cup ring (35) is arranged in contact with the rotating surface; a clamping plate (37) is arranged on the side of the sealing sleeve (21) away from the suction cup ring (35), and the clamping plate (37) and the suction cup ring (35) are fixed to the sealing sleeve (21) through a connecting bolt (38).

4. The internal heating precision ceramic rotary atmosphere furnace according to claim 3 is characterized in that: An annular connecting ring plate (5) is provided at one end of the buffer tube (41) away from the feeding rack (4), and a mounting groove (51) is provided on the connecting ring plate (5). The disassembly plate (61) covers the mounting groove (51), and positioning plates (52) for limiting the position of the disassembly plate (61) are provided at both ends of the periphery of the connecting ring plate (5) along its radial direction, and a positioning groove (53) for locking the position of the positioning plate (52) is provided on the periphery of the disassembly plate (61), and a clamp (54) for pressing the disassembly plate (61) and the connecting ring plate (5) is provided on the positioning plate (52).

5. The internal heating precision ceramic rotary atmosphere furnace according to claim 4 is characterized in that: The disassembly plate (61) is provided with a placement groove (55) at a position corresponding to the rotating motor (62); a placement shell (56) is provided on a side of the disassembly plate (61) close to the cache cylinder (41); the placement shell (56) covers the placement groove (55); the rotating motor (62) is fixed in the placement shell (56); and a covering plate (57) is provided on the disassembly plate (61) to cover the placement groove (55).

6. The internal heating precision ceramic rotary atmosphere furnace according to claim 5, characterized in that: The rotating motor (62) is provided with a connecting rod (65), the end of the smoothing rod (63) close to the rotating motor (62) is provided with a connecting hole (66), the connecting rod (65) is inserted into the connecting hole (66), the smoothing rod (64) is provided with a connecting plate (67), and the end of the smoothing rod (63) close to the smoothing rod (64) is provided with a connecting groove (68) for inserting the connecting groove (68).

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