A waste collection system for an internally heated precision ceramic rotary atmosphere furnace

Abstract

The present invention discloses a waste collection system for an internally heated precision ceramic rotary atmosphere furnace, which relates to the field of ceramic rotary atmosphere furnaces and aims to solve the problem that waste gas from calcining materials in a traditional inner furnace tube will take away a portion of the materials, resulting in waste of the materials in the inner furnace tube. The key points of the technical solution are that it comprises an exhaust shell, a filter hole is provided at one end of the exhaust shell away from a barrel body, a filter shell is sealably penetrated in the filter hole, a sealing shell covering the filter hole is provided at one end of the exhaust shell away from the barrel body, a connecting hole for connecting to an exhaust pipe is provided on the outer side wall of the sealing shell, and a recovery device for recovering the materials in the exhaust shell is provided on the end face of the inner side wall of the exhaust shell close to the barrel body. The present invention achieves the effect of reducing the waste of materials in the inner furnace tube.

Description

Technical Field

[0001] The invention relates to the technical field of ceramic rotary atmosphere furnaces, in particular to a waste collection system of an internally heated 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] A feeding rack is provided at one end of the placement rack close to the feed barrel, and a buffer barrel is provided on the feeding rack. A feeding hole is opened at one end of the buffer barrel away from the placement rack, and the buffer barrel is connected with a feeding shell, which is arranged along the radial direction of the feeding barrel, and the end of the feeding shell close to the barrel body is connected with a discharge barrel, and the discharge barrel is rotatably penetrated in the feed barrel; a screw feeder is rotatably penetrated in the feeding shell, a rotating motor is provided on the top wall of the feeding barrel, and a feeding trough is formed on the bottom wall of the feeding barrel by the feeding shell, a smoothing rod is provided on the rotating motor, and a sweeping rod is provided at one end of the smoothing rod away from the rotating motor, and the rotating trajectory of the sweeping rod is parallel to the bottom wall of the feed barrel.

[0005] The above-mentioned prior art solutions have the following defects: the exhaust gas in the exhaust shell contains a large amount of material, and a large amount of material in the exhaust gas will be wasted, resulting in a large amount of material in the inner furnace tube being wasted. This problem needs to be solved urgently. Summary of the invention

[0006] The purpose of the present invention is to provide a waste collection system for an internally heated precision ceramic rotary atmosphere furnace, which has the effect of reducing the amount of material waste in an inner furnace tube.

[0007] To achieve the above object, the present invention provides the following technical solutions:

[0008] It comprises a placing rack, on which a barrel body is rotatably arranged, an exhaust shell is arranged at one end in the length direction of the barrel body, an exhaust pipe connected to an inner furnace pipe is penetrated through the exhaust shell, an end of the exhaust shell away from the barrel body is connected to an exhaust pipe, an outer wall of the exhaust pipe is provided with an air outlet, a filter hole is disposed at the end of the exhaust shell away from the barrel body, a filter shell is sealably penetrated through the filter hole, a sealing shell covering the filter hole is disposed at the end of the exhaust shell away from the barrel body, a connecting hole connected to the exhaust pipe is disposed on the outer wall of the sealing shell, and a recovery device for recovering materials in the exhaust shell is disposed on the end face of the inner wall of the exhaust shell close to the barrel body.

[0009] By adopting the above technical scheme, the exhaust gas in the inner furnace tube will carry the materials into the exhaust shell through the exhaust pipe. The exhaust gas in the exhaust shell must first be filtered through the filter shell before it can enter the exhaust pipe through the filter holes and the connecting holes, and finally be discharged directionally through the air outlet holes. The materials in the exhaust gas are on the outer wall of the filter shell. As the barrel body continues to rotate, the materials outside the filter shell will fall into the exhaust shell under the action of gravity. Since the barrel body is tilted, the materials in the exhaust shell move until the exhaust shell is close to one end of the barrel body, and then the materials will enter the inner furnace tube of the barrel body through the recovery device, thereby reducing the amount of material waste in the inner furnace tube.

[0010] Furthermore, the recovery device includes a return cylinder arranged at one end of the exhaust shell close to the barrel body, a receiving cylinder is arranged at one end of the outer wall of the exhaust shell close to the barrel body, the receiving cylinder is connected to the inner furnace tube, the return cylinder is passed through the end face of the exhaust shell and the receiving cylinder, a receiving hole is opened at one end of the return cylinder located in the receiving cylinder, and a return hole is opened at one end of the return cylinder away from the receiving hole; a material guide plate is arranged on the end face of the inner wall of the exhaust shell close to the barrel body, one end of the material guide plate is connected to the curved side wall of the exhaust shell and the other end is connected to the return hole.

[0011] By adopting the above technical solution, when the material in the exhaust shell slides to one end close to the barrel body, the material will enter the recovery cylinder through the return hole, and the material in the recovery cylinder will enter the receiving cylinder through the receiving hole, and finally enter the inner furnace tube through the receiving cylinder.

[0012] Furthermore, the outer wall of the return material cylinder is connected to a material receiving shell, and the material receiving shell covers the material receiving hole. A material pulling column is slidably penetrated in the material receiving shell, and a material pulling ring groove is opened on the outer wall of the material pulling column at a position corresponding to the material receiving hole. The material pulling column is respectively formed with a return material section and a material pulling section at both ends of the material pulling ring groove, and the material receiving shell is formed with a material pulling hole for the material pulling section to slide and a material receiving hole for the return material section to slide on both sides of the material pulling ring groove, and the length of the return material section is greater than the length of the material pulling hole.

[0013] By adopting the above technical scheme, waste gas will be generated during the calcination of the material in the inner furnace tube. The waste gas contains a small amount of material. When the waste gas is discharged through the exhaust shell, the material will be filtered in the exhaust shell. In order to recover the material in the exhaust shell, a return cylinder will be penetrated on the end face of the exhaust shell, and a collecting cylinder will be arranged on the outer wall of the exhaust shell close to the end face of the barrel body. The collecting cylinder and the inner furnace tube are connected. A collecting hole is provided at one end of the return cylinder located in the collecting cylinder, and a return hole is provided at one end of the return cylinder located in the discharge shell. In this way, the material in the exhaust shell can enter the inner furnace tube through the return cylinder. However, in this way, the material in the inner furnace tube can also enter the exhaust shell through the return cylinder. In order to prevent the material in the inner furnace tube from entering the exhaust shell, The material enters the exhaust shell through the return barrel, and a receiving shell is closed on the receiving hole. A pulling column is slidably provided in the receiving shell, and a pulling ring groove is provided on the outer wall of the pulling column. Since the barrel body is rotating all the time, the pulling column will also slide in the receiving shell. When the receiving ring groove is facing the receiving hole, the material in the return barrel will fall between the pulling ring groove and the inner wall of the receiving shell. Then, as the barrel body rotates, the pulling column will move to one end of the length direction of the receiving shell. When the receiving ring groove extends out of the receiving shell, the material in the receiving ring groove will fall into the receiving barrel under the action of its gravity, while the material in the inner furnace tube cannot move between the receiving shell and the pulling ring groove, thereby discharging the material in the exhaust shell into the receiving barrel in one direction.

[0014] Furthermore, the pulling section is connected to an eccentric rod, the outer side wall of the barrel body is fixedly connected to an eccentric cylinder, and one end of the eccentric rod away from the pulling section is slidably inserted into the eccentric cylinder; a guide cylinder is inserted into the eccentric cylinder, and the guide cylinder is wrapped around the outer side wall of the eccentric rod.

[0015] By adopting the above technical solution, the eccentric rod can increase the gravity at one end of the pulling column, thereby facilitating the sliding of the pulling column in the receiving shell; the guide tube can provide a guide area for increasing the eccentric rod during the sliding process, thereby improving the movement stability of the eccentric rod in the barrel body.

[0016] Furthermore, a rapping cavity is provided on the inner side wall of the material return section, and a rapping ball is slidably arranged in the rapping cavity. The rapping cavity is provided along the length direction of the material pulling column.

[0017] By adopting the above technical scheme, the pulling column slides in the material receiving shell, a vibrating cavity is set in the return material section, and a vibrating ball is set in the vibrating cavity. As the barrel body rotates, the material receiving shell will continuously change its position in the barrel body. Each time the material receiving shell rotates one circle with the barrel body, the vibrating ball in the vibrating cavity will knock the material pulling column once along the length direction of the pulling column, and push the material pulling column from the return material section to the material pulling section. In this way, even if there is material stuck between the pulling column and the material receiving shell, it will be knocked open by the vibrating ball, thereby preventing the material pulling column from being obstructed in sliding in the material receiving shell.

[0018] Furthermore, a buffer ring is provided on the inner side wall of the rapping cavity, a buffer groove is formed between the buffer ring and the sealing plug, and the inner diameter of the buffer ring is larger than the maximum diameter of the rapping ball.

[0019] By adopting the above technical solution, the buffer ring and the buffer groove can play the role of initially lifting the rapping ball in the rapping cavity, ensuring that the rapping ball falls from the highest point each time, thereby improving the utilization rate of the gravitational potential energy of the rapping ball.

[0020] Furthermore, a breathable plate is provided at one end of the filter shell away from the barrel body, and air holes are opened on the breathable plate. An electromagnetic pulse valve is connected to the sealing shell, and the electromagnetic pulse valve includes an air inlet and an air outlet. The air outlet is connected to the breathable plate, and the air inlet is connected to an air inlet pipe.

[0021] By adopting the above technical scheme, a sealing shell is arranged on the end face of the exhaust shell, an electromagnetic pulse valve is connected to the sealing shell, the air inlet of the electromagnetic pulse valve is connected to the air inlet pipe, the air outlet of the electromagnetic pulse valve is connected to the filter shell, the filter shell filters the exhaust gas in the exhaust shell for a long time, and a large amount of material will be stuck to the outer wall of the filter shell. At this time, as long as the electromagnetic pulse valve is started, the air outlet will blow gas into the filter shell, and the material on the outer wall of the filter shell will be cleaned up by the recoil gas, thereby facilitating the cleaning of the material on the outer wall of the filter shell.

[0022] Furthermore, an air bag is provided on the outer side wall of the exhaust shell, the air intake pipe is connected to the air bag, an air bleed pipe is connected to the air bag, an end of the air bleed pipe away from the air bag is connected to an air cylinder, one end of the air cylinder is fixed to an end of the exhaust pipe away from the barrel body, the center line of the air cylinder and the center line of the exhaust pipe are arranged to overlap, an end of the air cylinder away from the exhaust pipe extends out of a placement rack, and an end of the air cylinder extending out of the placement rack is connected to an air pump.

[0023] By adopting the above technical solution, a stable gas buffer space is continuously provided to the electromagnetic pulse valve through the air bag, thereby ensuring that there is a sufficient and stable gas source each time the electromagnetic pulse valve is started; the air cylinder is connected to the end face of the exhaust pipe, so that the gas of the air pump can be continuously connected to the air pipe, and the air cylinder can rotate with the barrel body without affecting the rotation of the barrel body.

[0024] Furthermore, the air bag is arranged in an annular shape, and a connecting tube is arranged on the end face of the barrel body close to the exhaust shell. The connecting tube is sleeved outside the exhaust shell, and the air bag is sleeved on the outer side wall of the connecting tube. The air bag is divided into sub-air bags along its radial direction.

[0025] By adopting the above technical scheme, in order to ensure that there is sufficient gas in the filter shell for backblowing, an air bag is connected to the pulse solenoid valve as a buffer space for blowing gas into the filter shell. However, the solenoid pulse valve will rotate with the barrel body. In order to improve the stability of the entire backblowing system, the air bag is installed on the outer wall of the connecting tube that rotates synchronously with the barrel body. However, if there is some extra gravity at a certain position on the outer wall of the connecting tube, it will cause uneven rotation of the entire barrel body. In order to solve this problem, the air bag is designed to be circular and sleeved on the outer wall of the connecting tube. In order to facilitate the installation of the air bag on the outer wall of the connecting tube, the air bag is divided into two sub-air bags along its radial direction. When the air bag needs to be installed on the connecting tube, it only needs to be spliced ​​on the outer wall of the connecting tube, thereby preventing the air bag from having an adverse effect on the rotation of the barrel body.

[0026] Furthermore, the two ends of the air dividing bag in the extension direction are closed, a connecting hole is opened at one end of the air dividing bag, and connecting pipes are passed through the connecting holes of adjacent air dividing bags; a stabilizing tube is provided in the connecting hole, and the stabilizing tube is sleeved on the outer wall of the connecting pipe.

[0027] By adopting the above-mentioned technical scheme, the air tightness between the sub-air bags can be improved by replacing the butt-to-butt connection of the end faces of the sub-air bags with connecting holes and connecting tubes, thereby improving the overall sealing of the air bags; the stabilizing cylinder can increase the contact area between the connecting holes and the connecting tubes, thereby further improving the sealing of the air bags.

[0028] In summary, the beneficial technical effects of the present invention are:

[0029] 1. The material return cylinder, material collection cylinder, material return hole and material collection hole are used to reduce the amount of material waste in the inner furnace tube;

[0030] 2. The material receiving shell, material pulling column and material pulling ring groove are adopted to produce the effect of making the material in the exhaust shell enter the inner furnace tube in one direction;

[0031] 3. Electromagnetic pulse valve and air bag are used to clean the material on the surface of the filter shell. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0033] Figure 2 It is a schematic diagram of the cross-sectional structure of the exhaust shell in the present invention;

[0034] Figure 3 for Figure 2 The enlarged structural diagram of the middle A part;

[0035] Figure 4 for Figure 3 A schematic diagram of the enlarged structure of the middle B part;

[0036] Figure 5 for Figure 4 The enlarged structural diagram of the middle C part;

[0037] Figure 6 It is a schematic diagram of the cross-sectional structure of the end face of the exhaust shell in the present invention;

[0038] Figure 7 for Figure 6 The enlarged structural diagram of the middle D part;

[0039] Figure 8 It is a schematic diagram of the structure of the barrel body close to the end face of the exhaust shell in the present invention;

[0040] Fig. 9 for Figure 8 The enlarged structural diagram of the middle E part;

[0041] Fig.10 It is a schematic diagram of the cross-sectional structure of the material receiving shell in the present invention;

[0042] Fig.11 for Fig.10 The enlarged structural diagram of the middle F part;

[0043] Fig.12 It is a schematic diagram of the cross-sectional structure of the barrel body in the present invention;

[0044] Fig.13 for Fig.12 A schematic diagram of the enlarged structure of the middle G section;

[0045] Fig.14 for Fig.13 A schematic diagram of the enlarged structure of the middle H section;

[0046] Fig.15 It is a schematic diagram of the structure of the air bag in the present invention.

[0047] In the figure, 1, exhaust shell; 11, barrel body; 12, placement rack; 13, inner furnace tube; 14, exhaust pipe; 15, exhaust pipe; 16, air outlet; 2, recovery device; 21, return barrel; 22, receiving barrel; 23, receiving hole; 24, return hole; 25, guide plate; 26, receiving shell; 27, pulling column; 28, pulling ring groove; 3, return section; 31, vibration cavity; 32, vibration ball; 33, buffer ring; 34, buffer groove; 4, pulling section ;41. Eccentric rod;42. Eccentric cylinder;43. Guide cylinder;44. Pulling hole;45. Receiving hole;5. Filter hole;51. Filter shell;52. Sealing shell;53. Connecting hole;54. Breathing plate;55. Breathing hole;56. Solenoid pulse valve;57. Air outlet;6. Air inlet;61. Air inlet pipe;62. Air bag;63. Connecting cylinder;64. Air distribution bag;65. Connecting hole;67. Stabilizing cylinder;68. Air bleed pipe;69. Air bleed cylinder. DETAILED DESCRIPTION

[0048] The present invention is further described in detail below in conjunction with the accompanying drawings.

[0049] Reference Figure 1 , which is a waste collection system for an internally heated precision ceramic rotary atmosphere furnace disclosed by the present invention, comprising a placement rack 12, 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 placement rack 12 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, thereby playing a role in protecting the barrel body 11. An inner furnace tube 13 for placing materials is arranged in the barrel body 11, and powdered materials are added to the inner furnace tube 13. After the materials in the inner furnace tube 13 are calcined, waste gas will be generated. In order to discharge the waste gas in the barrel body 11, an exhaust shell 1 is arranged at one end of the barrel body 11 in the length direction. An exhaust pipe 15 is connected to one end of the exhaust shell 1 away from the barrel body 11, and an air outlet 16 is opened on the outer wall of the exhaust pipe 15. An inner furnace tube 13 for calcining materials is arranged in the barrel body 11. A feeding tube for feeding materials into the inner furnace tube 13 is penetrated in the exhaust pipe 15, and a discharging tube is rotatably penetrated in the feeding tube. When the operator needs to add materials to the inner furnace tube 13, he only needs to add materials to the discharging tube. A driving device for driving the barrel body 11 to rotate is arranged at one end of the placement rack 12, and the driving device includes a motor arranged on the placement rack 12, a driving gear is sleeved on the motor, and 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.

[0050] Reference Figure 2 and Figure 3 An exhaust pipe 14 is provided in the inner furnace tube 13, and the exhaust pipe 14 runs through the exhaust shell 1 of the inner furnace tube 13 and the feed tube. The exhaust gas generated by calcining the material in the inner furnace tube 13 will enter the exhaust shell 1 through the exhaust pipe 14, and then be directedly discharged from the exhaust shell 1.

[0051] Reference Figure 4 , Figure 5 , Figure 6 and Figure 7A filter hole 5 is provided at one end of the exhaust shell 1 away from the barrel body 11, and a filter shell 51 is plugged in the filter hole 5. All the exhaust gas entering the exhaust shell through the exhaust pipe 14 must pass through the filter shell 51 before being discharged from the filter hole 5. The particulate material in the exhaust gas will be removed from the exhaust gas when it encounters the filter shell 51, and then fall into the exhaust shell 1 under the action of its own gravity. A recovery device 2 is provided on the end surface of the exhaust shell 1 close to the barrel body 11, and a material collecting cylinder 22 connected to the inner furnace pipe 13 is provided on the outer wall of the exhaust shell 1 close to the end surface of the barrel body 11. The barrel body 11 itself is in a rotating state, and the barrel body 11 is arranged in an inclined rotation state as a whole, and the material in the exhaust shell 1 will gradually return to the exhaust shell 1. The material in the exhaust shell 1 will naturally enter the receiving barrel 22 through the return hole 24 and the receiving hole 23 as long as the material in the exhaust shell 1 rotates with the barrel body 11. In order to facilitate the material in the exhaust shell 1 to enter the return barrel 21, a guide plate 25 is arranged on the inner end face of the exhaust shell 1, and one end of the guide plate is connected to the curved side wall of the exhaust shell 1, and the other end is connected to the return hole 24.

[0052] Reference Figure 8 , Fig. 9 , Fig.10 and Fig.11During the calcination of the material in the inner furnace tube 13, waste gas will be generated. The waste gas contains a small amount of material. When the waste gas is discharged through the exhaust shell 1, the material will be filtered in the exhaust shell 1. In order to recover the material in the exhaust shell 1, a collecting cylinder 22 is arranged on the end face of the barrel body 11 near the outer wall of the exhaust shell 1. The collecting cylinder 22 and the inner furnace tube 13 are connected. In this way, the material in the exhaust shell 1 can enter the inner furnace tube 13 through the return cylinder 21, but in this way, the material in the inner furnace tube 13 can also pass through the return cylinder 21 enters into the exhaust shell 1; a receiving shell 26 is provided on the return material cylinder 21, and the receiving shell 26 covers the receiving hole 23. A pulling column 27 is slidably penetrated in the receiving shell 26, and a pulling ring groove 28 is provided on the outer wall of the pulling column 27 corresponding to the receiving hole 23. The pulling column 27 is divided into a return material section 3 and a pulling section 4 along the length direction of the pulling ring groove 28. A pulling hole 44 for sliding the pulling section 4 is provided at the position of the receiving shell 26 corresponding to the pulling section 4, and a feeding hole 44 for sliding the returning section 3 is provided in the receiving shell 26 corresponding to the return material section 3. The receiving hole 45 of the material drawing section 4 is provided, and the length of the return material section 3 is greater than the length of the pulling hole 44; the end of the pulling section 4 away from the return material section 3 is connected to the eccentric rod 41, and an eccentric cylinder 42 pointing to the pulling section 4 is provided on the side wall of the barrel body 11. The end of the eccentric rod 41 away from the pulling section 4 is slidably penetrated in the eccentric cylinder 42, and a guide cylinder 43 is penetrated in the eccentric cylinder 42, and the guide cylinder 43 is sleeved on the outer wall of the eccentric rod 41; because the barrel body 11 is rotating all the time, the pulling column 27 will also slide in the receiving shell 26, and when the receiving ring groove is facing the receiving hole 23, the material in the return barrel 21 will fall between the pulling ring groove 28 and the inner side wall of the material receiving shell 26, and then with the rotation of the barrel body 11, the pulling column 27 will move to one end of the material receiving shell 26 in the length direction. When the material receiving ring groove extends out of the material receiving shell 26, the material in the material receiving ring groove will fall into the receiving barrel 22 under the action of its gravity, while the material in the inner furnace tube 13 cannot move between the material receiving shell 26 and the pulling ring groove 28, thereby playing the role of discharging the material in the exhaust shell 1 into the receiving barrel 22 in one direction.

[0053] Reference Fig.10 and Fig.11 A rapping cavity 31 is provided in the material return section 3, and a rapping ball 32 is slidably arranged in the rapping cavity 31, so that each time the material receiving shell 26 rotates one circle following the barrel body 11, the rapping ball 32 in the rapping cavity 31 will knock the material pulling column 27 once, and push the material pulling column 27 from the material return section 3 to the material pulling section 4; a buffer ring 33 is provided on the inner side wall of the rapping cavity 31, and a buffer groove 34 for temporarily placing the rapping ball 32 is formed between the buffer ring 33 and the sealing plug.

[0054] Reference Fig.12 , Fig.13 , Fig.14 and Fig.15The end surface of the exhaust shell 1 away from the barrel body 11 is provided with a sealing shell 52, the sealing shell 52 covers the filter hole 5, and the side wall of the sealing shell 52 is provided with a connecting hole 53 connected to the exhaust tube 15. The end of the filter shell 51 away from the barrel body 11 is provided with a breathable plate 54, and the breathable plate 54 is provided with a breathable hole 55. The end of the sealing shell 52 away from the barrel body 11 is provided with an electromagnetic pulse valve 56, and the electromagnetic pulse valve 56 is provided with an air inlet 6 and an air outlet 57. The air inlet 6 is connected to the air inlet pipe 6. 1, an air bag 62 is arranged outside the exhaust shell 1, and the end of the air inlet pipe 61 away from the air inlet 6 is connected to the air bag 62, and the air outlet 57 is connected to the air permeable plate 54. When the outer wall of the filter shell 51 needs to be cleaned of materials, as long as the electromagnetic pulse valve 56 is started, the electromagnetic pulse valve 56 will backwash gas into the filter shell 51 through the air outlet 57, thereby playing the effect of cleaning the materials on the outer wall of the filter shell 51 into the exhaust shell 1; the air bag 62 is connected to the air duct 68, and the air duct 68 is away from the air inlet 6. One end of the air bag 62 is connected to an air cylinder 69, which is rotatably arranged on the end surface of the exhaust pipe 14 away from the barrel body 11, and one end of the air cylinder 69 away from the exhaust pipe 14 extends out of the placement frame 12, and one end of the air cylinder 69 extending out of the placement frame 12 is connected to an air pump; a connecting tube 63 is arranged on the outer sleeve of the exhaust shell 1, and one end of the connecting tube 63 in the length direction is fixed on the end surface of the barrel body 11, and the air bag 62 is fixed on the outer wall of the connecting tube 63, in order to prevent the air bag 62 from affecting the balance of the rotation of the barrel body 11 The air bag 62 is designed as a whole into a circular ring shape. In order to facilitate the installation of the air bag 62, the air bag 62 is divided into sub-air bags 64 along its radial direction. The two ends of the sub-air bags 64 in the extension direction are sealed. In order to make the two sub-air bags 64 connect to each other, a connecting hole 65 is opened on the two sub-air bags 64, and the two connecting holes 65 are connected to connecting pipes. In order to improve the sealing of the connecting hole 65 and the connecting pipe, a stabilizing tube 67 is set in the connecting hole 65, and the stabilizing tube 67 is sleeved on the outer wall of the connecting pipe.

[0055] 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. A waste collection system for an internally heated precision ceramic rotary atmosphere furnace, comprising a placement rack (12), a barrel body (11) being rotatably arranged on the placement rack (12), an exhaust shell (1) being arranged at one end in the length direction of the barrel body (11), an exhaust pipe (14) being arranged in the exhaust shell (1) and being connected to an inner furnace pipe (13), an exhaust tube (15) being connected to the end of the exhaust shell (1) away from the barrel body (11), an exhaust hole (16) being arranged on the outer side wall of the exhaust tube (15), characterized in that: A filter hole (5) is provided at one end of the exhaust shell (1) away from the barrel body (11), a filter shell (51) is sealed and penetrated in the filter hole (5), a sealing shell (52) covering the filter hole (5) is provided at one end of the exhaust shell (1) away from the barrel body (11), a connecting hole (53) connected to the exhaust cylinder (15) is provided on the outer wall of the sealing shell (52), and a recovery device (2) for recovering materials in the exhaust shell (1) is provided on the end surface of the inner wall of the exhaust shell (1) close to the barrel body (11); The recovery device (2) comprises a return barrel (21) arranged at one end of the exhaust shell (1) close to the barrel body (11); a receiving barrel (22) is arranged at one end of the outer wall of the exhaust shell (1) close to the barrel body (11); the receiving barrel (22) is connected to the inner furnace tube (13); the return barrel (21) is inserted through the end surface of the exhaust shell (1) and the receiving barrel (22); a receiving hole (23) is provided at one end of the return barrel (21) located in the receiving barrel (22); a return hole (24) is provided at one end of the return barrel (21) away from the receiving hole (23); a guide plate (25) is arranged at the end surface of the inner wall of the exhaust shell (1) close to the barrel body (11); one end of the guide plate (25) is connected to the curved side wall of the exhaust shell (1) and the other end is connected to the return hole (24); The outer wall of the return material cylinder (21) is connected to a material receiving shell (26), and the material receiving shell (26) covers the material receiving hole (23). A material pulling column (27) is slidably penetrated in the material receiving shell (26), and a material pulling ring groove (28) is opened at the outer wall of the material pulling column (27) at a position corresponding to the material receiving hole (23). The material pulling column (27) is respectively formed with a return material section (3) and a material pulling section (4) at both ends of the material pulling ring groove (28). The material receiving shell (26) is formed with a material pulling hole (44) for the material pulling section (4) to slide and a material receiving hole (45) for the return material section (3) to slide on both sides of the material pulling ring groove (28). The length of the return material section (3) is greater than the length of the material pulling hole (44); The material pulling section (4) is connected to an eccentric rod (41), and the outer wall of the barrel body (11) is fixedly connected to an eccentric cylinder (42), and one end of the eccentric rod (41) away from the material pulling section (4) is slidably inserted into the eccentric cylinder (42); a guide cylinder (43) is inserted into the eccentric cylinder (42), and the guide cylinder (43) is wrapped around the outer wall of the eccentric rod (41); The inner side wall of the material return section (3) is provided with a rapping cavity (31), a rapping ball (32) is slidably arranged in the rapping cavity (31), and the rapping cavity (31) is opened along the length direction of the material pulling column (27); An air permeable plate (54) is provided at one end of the filter shell (51) away from the barrel body (11), and an air permeable hole (55) is provided on the air permeable plate (54). An electromagnetic pulse valve (56) is connected to the sealing shell (52), and the electromagnetic pulse valve (56) comprises an air inlet (6) and an air outlet (57). The air outlet (57) is connected to the air permeable plate (54), and the air inlet (6) is connected to an air inlet pipe (61); An air bag (62) is arranged on the outer wall of the exhaust shell (1), the air intake pipe (61) is connected to the air bag (62), an air bleed pipe (68) is connected to the air bag (62), one end of the air bleed pipe (68) away from the air bag (62) is connected to an air bleed cylinder (69), one end of the air bleed cylinder (69) is fixed to one end of the exhaust pipe (14) away from the barrel (11), the center line of the air bleed cylinder (69) and the center line of the exhaust pipe (14) are arranged to overlap, one end of the air bleed cylinder (69) away from the exhaust pipe (14) extends out of the placement frame (12), and one end of the air bleed cylinder (69) extending out of the placement frame (12) is connected to an air pump; The air bag (62) is arranged in an annular shape. A connecting tube (63) is arranged on the end surface of the barrel body (11) close to the exhaust shell (1). The connecting tube (63) is sleeved outside the exhaust shell (1). The air bag (62) is sleeved on the outer side wall of the connecting tube (63). The air bag (62) is divided into sub-air bags (64) along its radial direction.

2. The waste collection system for the internally heated precision ceramic rotary atmosphere furnace according to claim 1 is characterized in that: A buffer ring (33) is provided on the inner wall of the rapping cavity (31), a buffer groove (34) is formed between the buffer ring (33) and the sealing plug, and the inner diameter of the buffer ring (33) is greater than the maximum diameter of the rapping ball (32).

3. The waste collection system for the internally heated precision ceramic rotary atmosphere furnace according to claim 2 is characterized in that: The two ends of the gas separation bag (64) in the extension direction are closed, one end of the gas separation bag (64) is provided with a communication hole (65), and a communication pipe is passed through the communication hole (65) of the adjacent gas separation bag (64); a stabilizing tube (67) is provided in the communication hole (65), and the stabilizing tube (67) is sleeved on the outer wall of the communication pipe.

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