Shuttle type kiln for ceramic firing
By introducing a circulating heating and pressure relief mechanism into the shuttle kiln for ceramic firing, the high energy consumption problem caused by heating the outside air in the prior art is solved, and the constant temperature of the kiln body and the reduction of energy consumption are achieved.
Patent Information
- Application Number
- CN202421866791.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-02
- Publication Date
- 2025-05-13
- Estimated Expiration
- 2034-08-02
AI Technical Summary
The existing shuttle kiln for ceramic firing is a process of heating the external air to maintain the internal temperature stability of the kiln body, which leads to large energy consumption of the equipment and is not conducive to practical application.
A shuttle type kiln for ceramic firing is designed. The air inside the kiln is pumped into the heating tank for reheating, and the internal air pressure is adjusted through the pressure relief mechanism to ensure constant temperature and reduce energy consumption.
Through the use of the circulating heating mechanism, the temperature of the air inside the kiln body is constant, avoiding direct heating of the cold air outside, significantly reducing the overall energy consumption of the equipment and improving application efficiency.
Smart Images
Figure CN222865561U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the technical field of shuttle kilns, and in particular to a shuttle kiln for firing ceramics. Background Art
[0002] Bathroom ceramics are glazed ceramic products used in bathrooms. When bathroom ceramics are produced, shuttle kilns are often used to prepare them.
[0003] After searching, a Chinese patent discloses a high-temperature shuttle kiln for ceramic firing with a partition structure (authorization announcement number CN215413153U), comprising a kiln body, a heat-resistant layer is installed on the inner side of the kiln body, a connecting pipe is installed through the top of the kiln body, a ventilation pipe is installed on the top of the connecting pipe, air intake pipes are installed through the two sides of the kiln body, a bottom plate is installed on the inner side of the bottom of the kiln body, a guide rail is installed on the top of the bottom plate, a moving wheel is installed on the top of the guide rail, both sides of the moving wheel are connected to a support seat through a connecting shaft, and a moving platform is installed on the top of the support seat;
[0004] In the actual application process of this patented technology, the outside air is continuously sucked into the device through the suction fan, and then continuously heated by the heating wire. Although this heating method can prevent the outside cold air from directly entering the device and affecting the stability of the internal temperature of the device, it greatly increases the energy consumption of the equipment and requires continuous heating of the outside air, which is not conducive to practical application.
[0005] Therefore, those skilled in the art provide a shuttle kiln for ceramic firing to solve the problems raised in the above background technology. Utility Model Content
[0006] In view of the deficiencies of the prior art, the present application provides a shuttle kiln for firing ceramics, which solves the problem that the prior art mentioned in the above background technology greatly increases the energy consumption of the equipment and requires continuous heating of the external air.
[0007] To achieve the above objectives, the present application is implemented through the following technical solutions: A shuttle kiln for ceramic firing, comprising a kiln body and two fixed frames, the kiln body is installed between the two fixed frames, a temperature sensor is arranged inside the kiln body, a material holding mechanism is arranged inside the kiln body, a driving mechanism is arranged at the bottom of the material holding mechanism, and the driving mechanism is used to drive the material holding mechanism to enter and exit the interior of the kiln body;
[0008] Two heating tanks are provided inside the kiln body, and heating pipes are installed in the heating tanks at equal distances. Ventilation holes are provided at equal distances on both sides of the inner wall of the kiln body, and the ventilation holes are communicated with the interior of the heating tanks. A circulating heating mechanism is also provided inside the kiln body, and the circulating heating mechanism is used to send the air inside the kiln body into the interior of the heating tanks.
[0009] A pressure relief mechanism is provided on the top of the kiln body, and the pressure relief mechanism is used to perform pressure relief operation on the inside of the kiln body.
[0010] Through the above technical scheme, a circulating heating mechanism is arranged inside the kiln body, which can continuously draw the air inside the kiln body into the heating tank, thereby continuously reheating the air inside the kiln body, and at the same time, the reheated air is re-introduced into the interior of the kiln body for use, thereby ensuring that the temperature of the air inside the kiln body is constant, and can reduce energy loss, avoid directly heating the external cold air, reduce the overall energy consumption of the equipment, and is conducive to practical application.
[0011] Preferably, the material holding mechanism includes a movable plate and a material holding rack, the movable plate slides at the bottom of the kiln body, and the width of the movable plate is the same as the width of the kiln body, the movable plate is set to a heat-insulating material, and the material holding rack is installed on the top of the movable plate, and grooves for placing ceramics are equidistantly provided at the top of the movable plate and the top of each layer of the material holding rack.
[0012] Through the above technical solution, the ceramic raw materials are placed in the grooves, and then the material holding rack and the movable plate are slid into the interior of the kiln body, thereby facilitating the material taking and discharging operations.
[0013] Preferably, the driving mechanism includes a track plate, three track grooves, six moving wheels, a transmission shaft, a first gear, a motor and a second gear, the track plate is installed between the bottoms of two fixed frames, three track grooves are equidistantly opened at the top of the track plate, six moving wheels are installed at the bottom of the moving plate, the moving wheels are all rollingly connected to the track grooves, the transmission shaft is installed between the central axes of three of the moving wheels, the first gear is fixed to the outside of the transmission shaft, the motor is installed at the bottom of the moving plate, the second gear is installed on the output shaft of the motor, and the second gear is meshingly connected to the first gear.
[0014] Through the above technical solution, the moving wheels are used to roll inside the track groove, thereby driving the moving plate and the material holding rack to move.
[0015] Preferably, the circulating heating mechanism includes a suction pipe, an installation box, a suction fan and a Y-shaped pipe, the suction pipe is installed on the top of the kiln body and communicates with the interior of the kiln body, the installation box is installed on the top of the suction pipe and communicates with the interior of the suction pipe, the suction fan is installed inside the installation box, the Y-shaped pipe is fixed on the top of the installation box and communicates with the interior of the installation box, and one end of the Y-shaped pipe away from the installation box extends to the interiors of two heating tanks respectively.
[0016] Through the above technical scheme, after the suction fan introduces the air inside the kiln body into the interior of the installation box through the suction pipe, the Y-shaped tube can be used to further introduce the air into the interior of the two heating tanks, and the heating tube is used to reheat the air, thereby ensuring the constant temperature of the air inside the kiln body, and then the reheated air is reintroduced into the interior of the kiln body through the ventilation holes, and the cycle is repeated to achieve a cyclic heating operation to ensure the heating effect, and at the same time, the air with a certain temperature itself is reheated to a preset temperature value, which has the advantage of low energy consumption compared to directly heating the outside air to a preset value.
[0017] Preferably, the pressure relief mechanism includes a pressure relief hole, a pressure relief box, a T-shaped rod, a sealing plate, a spring and an exhaust port, the pressure relief hole is opened at the top of the kiln body, the pressure relief box is installed on the top of the kiln body and keeps communication with the inside of the kiln body through the pressure relief hole, the T-shaped rod slides on the top of the pressure relief box, the bottom of the T-shaped rod extends to the inside of the pressure relief box, the sealing plate is fixed to the bottom of the T-shaped rod and is slidably connected to the inside of the pressure relief box, the spring is sleeved on the outside of the T-shaped rod and is located between the top of the sealing plate and the top of the inner wall of the pressure relief box, and the exhaust port is opened on the outside of the pressure relief box and is located above the sealing plate.
[0018] Through the above technical solution, when the air pressure inside the kiln body is too high, that is, greater than the force applied by the spring on the sealing plate, the air inside the kiln body will lift the sealing plate through the pressure relief hole, and drive the T-bar to move upward, while squeezing the spring. When the height of the sealing plate is higher than the exhaust port, the air can be discharged through the exhaust port, thereby ensuring the overall safety of the equipment at all times, which is beneficial to practical applications.
[0019] Preferably, filter screens are provided inside the ventilation holes, air suction pipes, pressure relief holes and exhaust ports.
[0020] Through the above technical solution, the filter can be used to prevent dust from entering the interior of the device.
[0021] Preferably, a closed door is rotatably connected to one side of the kiln body, a controller is installed on the outer side of the kiln body adjacent to the closed door, and the temperature sensor, motor, heating tube and suction fan inside the kiln body are electrically connected to the controller.
[0022] Through the above technical solution, the opening of the kiln body can be sealed by using the closed door, and the controller can be used to conveniently control the entire equipment.
[0023] The present application provides a shuttle kiln for firing ceramics, which has the following beneficial effects:
[0024] 1. The shuttle kiln for firing ceramics can continuously draw the air inside the kiln body into the heating tank by setting a circulating heating mechanism inside the kiln body, so as to continuously reheat the air inside the kiln body, and at the same time, the reheated air is introduced into the kiln body again for use, thereby ensuring the constant temperature of the air inside the kiln body, reducing energy loss, avoiding direct heating of the external cold air, and reducing the overall energy consumption of the equipment;
[0025] 2. The shuttle kiln used for ceramic firing has a pressure relief mechanism on the top of the kiln body. After the air pressure inside the kiln body reaches the specified standard, the pressure relief mechanism can be used to perform pressure relief operations, thereby ensuring the overall safety of the equipment at all times and being beneficial to practical applications. BRIEF DESCRIPTION OF THE DRAWINGS
[0026] Figure 1 A schematic diagram of the three-dimensional structure of this application;
[0027] Figure 2 This is a schematic diagram of the closed door of this application in an open state;
[0028] Figure 3 This is a schematic diagram of the structure of the driving mechanism and the material holding mechanism of the present application;
[0029] Figure 4 This is a schematic diagram of the internal structure of the kiln body of this application. Figure 1 ;
[0030] Figure 5 This is a schematic diagram of the internal structure of the kiln body of this application. Figure 2 ;
[0031] Figure 6 For this application Figure 3 The enlarged view of point A in the middle;
[0032] Figure 7 For this application Figure 4 The enlarged view of point B in the middle;
[0033] Figure 8 For this application Figure 5 Enlarged view of point C in the middle.
[0034] In the figure: 1. kiln body; 2. heating trough; 3. ventilation hole; 4. moving plate; 5. material rack; 6. track plate; 7. track groove; 8. moving wheel; 9. transmission shaft; 10. first gear; 11. motor; 12. second gear; 13. heating tube; 14. suction tube; 15. installation box; 16. suction fan; 17. Y-type tube; 18. pressure relief hole; 19. pressure relief box; 20. T-bar; 21. sealing plate; 22. spring; 23. exhaust port; 24. closing door; 25. controller; 26. fixing frame. DETAILED DESCRIPTION
[0035] The present application is further described in detail below through drawings and examples.
[0036] Reference Figure 1 and Figure 2 The embodiment of the present application provides a shuttle kiln for ceramic firing, including a kiln body 1 and two fixing frames 26. The kiln body 1 is installed between the two fixing frames 26, and the two fixing frames 26 can be used to stably support the kiln body 1. A temperature sensor is provided inside the kiln body 1, and the temperature inside the kiln body 1 is detected by the temperature sensor, so as to better perform the heating operation. A closed door 24 is rotatably connected to one side of the kiln body 1, and the closed door 24 can be used to seal the opening of the kiln body 1. A controller 25 is installed on the side of the outside of the kiln body 1 adjacent to the closed door 24.
[0037] A material holding mechanism is provided inside the kiln body 1, and a driving mechanism is provided at the bottom of the material holding mechanism, and the driving mechanism is used to drive the material holding mechanism to enter and exit the kiln body 1. Two heating tanks 2 are provided inside the kiln body 1, and heating pipes 13 are installed at equal distances inside the heating tanks 2. The heating pipes 13 can be used to reheat the air entering the heating tanks 2. Ventilation holes 3 are provided at equal distances on both sides of the inner wall of the kiln body 1, and the ventilation holes 3 are connected to the inside of the heating tanks 2. A circulating heating mechanism is also provided inside the kiln body 1, and the circulating heating mechanism is used to send the air inside the kiln body 1 into the inside of the heating tanks 2. Through the circulating heating mechanism provided inside the kiln body 1, the air inside the kiln body 1 can be continuously drawn into the inside of the heating tanks 2, and the air entering the inside of the heating tanks 2 can be reheated by the heating pipes 13, and the air after reheating can be passed into the inside of the kiln body 1 again through the ventilation holes 3 for use, thereby ensuring that the temperature of the air inside the kiln body 1 is constant, and can reduce energy loss, avoid directly heating the cold air outside, and reduce the overall energy consumption of the equipment. A pressure relief mechanism is provided on the top of the kiln body 1, and the pressure relief mechanism is used to relieve pressure inside the kiln body 1. By providing the pressure relief mechanism on the top of the kiln body 1, the pressure relief mechanism can be used to perform pressure relief operation after the air pressure inside the kiln body 1 reaches a specified standard, thereby ensuring the overall safety of the equipment at all times, which is beneficial to practical applications.
[0038] Reference Figure 2 and Figure 3 In one aspect of the present embodiment, the material holding mechanism includes a movable plate 4 and a material holding rack 5. The movable plate 4 slides at the bottom of the kiln body 1, and the width of the movable plate 4 is the same as the width of the kiln body 1. When the closed door 24 is opened, the movement of the movable plate 4 will not be affected. The bottom of the kiln body 1 can be sealed by the movable plate 4, and the movable plate 4 is set to a heat-insulating material. The material holding rack 5 is installed on the top of the movable plate 4. Grooves for placing ceramics are equidistantly provided on the top of the movable plate 4 and the top of each layer of the material holding rack 5. Ceramic raw materials are placed in the grooves, and then the material holding rack 5 and the movable plate 4 are slid into the interior of the kiln body 1, so as to facilitate the material taking and discharging operations.
[0039] Reference Figure 1 , Figure 2 , Figure 3 and Figure 6 In one aspect of the present embodiment, the driving mechanism includes a track plate 6, three track grooves 7, six moving wheels 8, a transmission shaft 9, a first gear 10, a motor 11 and a second gear 12. The track plate 6 is installed between the bottoms of the two fixed frames 26. Three track grooves 7 are equidistantly arranged on the top of the track plate 6. Six moving wheels 8 are installed at the bottom of the moving plate 4, and the moving wheels 8 are all rollingly connected with the track grooves 7. The moving wheels 8 are used to roll inside the track grooves 7, thereby driving the moving plate 4 and the material holding rack 5 to move. The transmission shaft 9 is installed between the central axes of three of the moving wheels 8. The first gear 10 is fixed on the outside of the transmission shaft 9. The motor 11 is installed at the bottom of the moving plate 4. Since the moving plate 4 is set to a heat-insulating material, when the motor 11 is installed at the bottom of the moving plate 4, the operation of the motor 11 will not be affected by high temperature. The second gear 12 is installed on the output shaft of the motor 11, and the second gear 12 is meshed and connected with the first gear 10. When it is necessary to carry out material picking or feeding operations, the motor 11 is controlled to work, driving the second gear 12 to rotate, thereby driving the first gear 10 and the transmission shaft 9 to rotate, and at the same time driving the three moving wheels 8 connected to the transmission shaft 9 to rotate, and the moving wheels 8 roll inside the track groove 7, thereby driving the moving plate 4 and the material rack 5 to move, thereby facilitating the completion of the material picking or feeding operations.
[0040] Reference Figure 4 and Figure 7In one aspect of the present embodiment, the circulating heating mechanism includes a suction pipe 14, a mounting box 15, a suction fan 16 and a Y-shaped pipe 17. The suction pipe 14 is installed at the top of the kiln body 1 and communicates with the inside of the kiln body 1. The mounting box 15 is installed at the top of the suction pipe 14 and communicates with the inside of the suction pipe 14. The suction fan 16 is installed inside the mounting box 15, and by controlling the suction fan 16 to work, the air inside the kiln body 1 can be introduced into the inside of the mounting box 15 through the suction pipe 14. The temperature sensor, motor 11, heating tube 13 and suction fan 16 inside the kiln body 1 are all electrically connected to the controller 25, and the controller 25 is used to facilitate the control of the entire device. At the same time, the linkage control between the temperature sensor, heating tube 13 and controller 25 belongs to the common knowledge of those skilled in the art, and will not be described in detail. When the temperature sensor detects that the temperature inside the kiln body 1 is too low, it transmits a signal to the controller 25, and the controller 25 controls the heating tube 13 to work and heat. Conversely, when the temperature sensor detects that the temperature inside the kiln body 1 reaches a preset value, it transmits a signal to the controller 25, and the controller 25 controls the heating tube 13 to stop working. The Y-shaped tube 17 is fixed on the top of the installation box 15 and communicates with the inside of the installation box 15. The end of the Y-shaped tube 17 away from the installation box 15 extends to the inside of the two heating tanks 2 respectively. After the suction fan 16 guides the air inside the kiln body 1 into the interior of the installation box 15 through the suction pipe 14, the air can be further guided into the interior of the two heating tanks 2 by means of the Y-shaped tube 17, and the air is reheated by the heating tube 13, thereby ensuring that the temperature of the air inside the kiln body 1 is constant, and then the reheated air is reintroduced into the interior of the kiln body 1 through the ventilation hole 3, and the cycle is repeated to achieve a cyclic heating operation, thereby ensuring the heating effect, and at the same time reheating the air which itself has a certain temperature to a preset temperature value, which has the advantage of low energy consumption compared to directly heating the outside air to a preset value.
[0041] Reference Figure 5 and Figure 8In one aspect of the present embodiment, the pressure relief mechanism includes a pressure relief hole 18, a pressure relief box 19, a T-shaped rod 20, a sealing plate 21, a spring 22 and an exhaust port 23. The pressure relief hole 18 is opened at the top of the kiln body 1. The pressure relief box 19 is installed at the top of the kiln body 1 and is connected to the inside of the kiln body 1 through the pressure relief hole 18. The T-shaped rod 20 slides on the top of the pressure relief box 19, and the bottom of the T-shaped rod 20 extends to the inside of the pressure relief box 19. The sealing plate 21 is fixed to the bottom of the T-shaped rod 20 and is slidably connected to the inside of the pressure relief box 19. The spring 22 is sleeved on the outside of the T-shaped rod 20 and is located between the top of the sealing plate 21 and the top of the inner wall of the pressure relief box 19. By using the elastic force of the spring 22, the sealing plate 21 can always close the pressure relief hole 18. The exhaust port 23 is opened on the outside of the pressure relief box 19 and is located above the sealing plate 21. The exhaust port 23 can be used to discharge the air entering the inside of the pressure relief box 19. When the air pressure inside the kiln body 1 is too high, that is, greater than the force applied by the spring 22 to the sealing plate 21, the air inside the kiln body 1 will lift the sealing plate 21 through the pressure relief hole 18, and drive the T-bar 20 to move upward, while squeezing the spring 22. When the height of the sealing plate 21 is higher than the exhaust port 23, the air can be discharged through the exhaust port 23, thereby ensuring the overall safety of the equipment at all times, which is beneficial to practical applications. The ventilation hole 3, the air suction pipe 14, the pressure relief hole 18 and the exhaust port 23 are all provided with a filter screen, which can prevent dust from entering the interior of the equipment.
[0042] Working principle:
[0043] When in use, firstly, the inside of the equipment is powered on, then the closed door 24 is opened, and the motor 11 is controlled by the controller 25 to work, driving the second gear 12 to rotate, thereby driving the first gear 10 and the transmission shaft 9 to rotate, and at the same time driving the three moving wheels 8 connected to the transmission shaft 9 to rotate, and the moving wheels 8 roll inside the track groove 7, thereby driving the moving plate 4 and the material holding rack 5 to move to the outside of the kiln body 1, such as Figure 2 As shown, the ceramic raw material to be processed is then placed inside the groove, and the movable plate 4 and the material holding rack 5 are controlled to retract into the inside of the kiln body 1 again, and the closed door 24 is closed at the same time;
[0044] Then, the controller 25 controls the suction fan 16 and the heating tube 13 to work, and the suction fan 16 is used to introduce the air inside the kiln body 1 into the inside of the installation box 15 through the suction tube 14, and the Y-shaped tube 17 is used to further introduce the air into the inside of the two heating tanks 2, and the heating tube 13 is used to heat the air until the temperature sensor detects that the air temperature inside the kiln body 1 reaches a preset value;
[0045] At the same time, when the temperature sensor detects that the temperature inside the kiln body 1 is too low, a signal is transmitted to the controller 25, and the controller 25 controls the suction fan 16 and the heating tube 13 to work, and uses the suction fan 16 to introduce the air inside the kiln body 1 into the heating tank 2 again, and uses the heating tube 13 to heat the air again, thereby ensuring that the temperature of the air inside the kiln body 1 is constant, and then the reheated air is reintroduced into the kiln body 1 through the ventilation hole 3, and the cycle is repeated, thereby realizing a cyclic heating operation, ensuring the heating effect, and at the same time, the air with a certain temperature itself is heated again to a preset temperature value, which has the advantage of low energy consumption compared to directly heating the outside air to a preset value;
[0046] In addition, when the air pressure inside the kiln body 1 is too high, that is, greater than the force applied by the spring 22 on the sealing plate 21, the air inside the kiln body 1 will lift the sealing plate 21 through the pressure relief hole 18, and drive the T-bar 20 to move upward, while squeezing the spring 22. When the height of the sealing plate 21 is higher than the exhaust port 23, the air can be discharged through the exhaust port 23, thereby ensuring the overall safety of the equipment at all times, which is beneficial to practical applications.
[0047] Although the embodiments of the present application have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present application, and that the scope of the present application is defined by the appended claims and their equivalents.
Claims
1. A shuttle kiln for firing ceramics, comprising a kiln body (1) and two fixing frames (26), wherein the kiln body (1) is installed between the two fixing frames (26), and a temperature sensor is arranged inside the kiln body (1), characterized in that: A material holding mechanism is arranged inside the kiln body (1), and a driving mechanism is arranged at the bottom of the material holding mechanism, and the driving mechanism is used to drive the material holding mechanism to enter and exit the interior of the kiln body (1); Two heating grooves (2) are provided inside the kiln body (1), heating pipes (13) are installed at equal distances inside the heating grooves (2), ventilation holes (3) are provided at equal distances on both sides of the inner wall of the kiln body (1), and the ventilation holes (3) are communicated with the interior of the heating grooves (2), and a circulating heating mechanism is also provided inside the kiln body (1), and the circulating heating mechanism is used to send air inside the kiln body (1) into the interior of the heating grooves (2); A pressure relief mechanism is provided on the top of the kiln body (1), and the pressure relief mechanism is used to perform pressure relief operations on the interior of the kiln body (1).
2. The shuttle kiln for firing ceramics according to claim 1, characterized in that: The material holding mechanism comprises a movable plate (4) and a material holding rack (5); the movable plate (4) slides at the bottom of the kiln body (1); the width of the movable plate (4) is the same as the width of the kiln body (1); the movable plate (4) is made of a heat-insulating material; the material holding rack (5) is installed on the top of the movable plate (4); grooves for placing ceramics are equidistantly provided at the top of the movable plate (4) and the top of each layer of the material holding rack (5).
3. The shuttle kiln for firing ceramics according to claim 2, characterized in that: The driving mechanism comprises a track plate (6), three track grooves (7), six moving wheels (8), a transmission shaft (9), a first gear (10), a motor (11) and a second gear (12); the track plate (6) is mounted between the bottoms of two fixing frames (26); the three track grooves (7) are equidistantly arranged on the top of the track plate (6); the six moving wheels (8) are mounted on the bottom of the moving plate (4); the moving wheels (8) are all rollingly connected to the track grooves (7); the transmission shaft (9) is mounted between the central axes of three of the moving wheels (8); the first gear (10) is fixed on the outside of the transmission shaft (9); the motor (11) is mounted on the bottom of the moving plate (4); the second gear (12) is mounted on the output shaft of the motor (11); and the second gear (12) is meshingly connected to the first gear (10).
4. The shuttle kiln for firing ceramics according to claim 3, characterized in that: The circulating heating mechanism comprises an air suction pipe (14), an installation box (15), an air suction fan (16) and a Y-shaped pipe (17); the air suction pipe (14) is installed on the top of the kiln body (1) and communicates with the interior of the kiln body (1); the installation box (15) is installed on the top of the air suction pipe (14) and communicates with the interior of the air suction pipe (14); the air suction fan (16) is installed inside the installation box (15); the Y-shaped pipe (17) is fixed on the top of the installation box (15) and communicates with the interior of the installation box (15); and one end of the Y-shaped pipe (17) away from the installation box (15) extends to the interiors of the two heating tanks (2) respectively.
5. The shuttle kiln for firing ceramics according to claim 4, characterized in that: The pressure relief mechanism comprises a pressure relief hole (18), a pressure relief box (19), a T-shaped rod (20), a sealing plate (21), a spring (22) and an exhaust port (23); the pressure relief hole (18) is opened at the top of the kiln body (1); the pressure relief box (19) is installed at the top of the kiln body (1) and is connected to the inside of the kiln body (1) through the pressure relief hole (18); the T-shaped rod (20) slides on the top of the pressure relief box (19); the bottom of the T-shaped rod (20) extends to the inside of the pressure relief box (19); the sealing plate (21) is fixed to the bottom of the T-shaped rod (20) and is slidably connected to the inside of the pressure relief box (19); the spring (22) is sleeved on the outside of the T-shaped rod (20) and is located between the top of the sealing plate (21) and the top of the inner wall of the pressure relief box (19); and the exhaust port (23) is opened on the outside of the pressure relief box (19) and is located above the sealing plate (21).
6. The shuttle kiln for firing ceramics according to claim 5, characterized in that: Filter screens are arranged inside the ventilation hole (3), the air suction pipe (14), the pressure relief hole (18) and the exhaust port (23).
7. The shuttle kiln for firing ceramics according to claim 1, characterized in that: A closed door (24) is rotatably connected to one side of the kiln body (1), a controller (25) is installed on the side of the outside of the kiln body (1) adjacent to the closed door (24), and a temperature sensor, a motor (11), a heating pipe (13) and a suction fan (16) inside the kiln body (1) are all electrically connected to the controller (25).