A drying room and drying method for large ceramic jar embryos

Abstract

The present invention discloses a drying room and drying method for large ceramic cylinder embryos, wherein a floor capable of heat transfer is provided in the drying room, the floor divides the drying room into an upper drying room and a lower drying room, the lower drying room is connected to a kiln through an air duct, an exhaust fan is provided on the air duct, the exhaust fan introduces hot air in the kiln into the lower drying room, temperature sensors and humidity sensors are provided in the upper and lower drying rooms, a plurality of convection fans are provided on the tops of the upper and lower drying rooms, a plurality of dehumidification fans are provided on the side walls of the upper and lower drying rooms, and a lifting platform for transferring ceramic cylinder embryos between the upper and lower drying rooms is also provided. The drying room makes full use of the heat of the kiln, adopts a two-stage drying method of first low temperature and then high temperature for the ceramic cylinder embryos, and better controls the temperature and humidity of each stage of drying, so that the drying time of the ceramic cylinder embryos is short, and the embryos are dried evenly, are not affected by the natural environment, and reduce the occurrence of cracks in the embryos.

Description

Technical Field

[0001] The invention relates to the field of ceramic production, and in particular to a drying room and a drying method for large ceramic jar embryos. Background Art

[0002] The production process of ceramic products refers to the entire process from the input of raw materials to the production of ceramic products. Generally speaking, the ceramic production process includes three basic stages: blank manufacturing, blank forming, and porcelain sintering. As a type of ceramic, the ceramic wine jar needs to be fired after the ceramic jar embryo is completely dried after demolding. At present, most ceramic jar embryos are naturally air-dried, and the drying time takes one month. At the same time, due to the inability to control the ambient temperature and humidity during the drying process, the ceramic jar embryo will be unevenly dried, and then cracks and other quality problems will occur. Summary of the invention

[0003] The purpose of the present invention is to provide a drying room and drying method for large ceramic jar embryos in order to solve the problem that the ceramic jar embryos after demoulding are currently dried naturally, which has a long drying time and uneven drying. The drying room adopts a high and low temperature two-stage drying method and better controls the drying temperature and humidity, so that the ceramic jar embryos have a short drying time and are dried evenly, thereby reducing the occurrence of cracks in the embryos.

[0004] In order to achieve the above object, the technical solution adopted by the present invention is:

[0005] A drying room for large ceramic jar embryos, wherein the drying room is provided with a floor capable of conducting heat, wherein the floor divides the drying room into an upper drying room and a lower drying room, wherein the lower drying room is connected to a kiln via an air duct, wherein an exhaust fan is provided on the air duct, wherein the exhaust fan introduces hot air from the kiln into the lower drying room, wherein temperature sensors and humidity sensors are provided in the upper drying room and the lower drying room, wherein a plurality of convection fans are provided on the tops of the upper drying room and the lower drying room, wherein a plurality of dehumidification fans are provided on the side walls of the upper drying room and the lower drying room, and wherein a lifting platform is further provided, wherein the lifting platform is used for transporting ceramic jar embryos between the upper drying room and the lower drying room.

[0006] The present invention introduces hot air generated when the kiln fires ceramics into the lower drying room through an exhaust fan, and the heat is transferred to the upper drying room through the floor slab. The upper drying room performs low-temperature pre-drying on the ceramic jar embryo, and the lower drying room performs high-temperature final drying on the ceramic jar embryo. At the same time, the temperature and humidity of the upper and lower drying rooms are monitored by arranging temperature sensors and humidity sensors, and the temperature and humidity in the upper and lower drying rooms are disturbed and adjusted by using convection fans and dehumidification fans. A lifting platform is arranged to facilitate the transportation of the ceramic jar embryo between the upper and lower drying rooms. The drying room makes full use of the heat of the kiln, adopts a two-stage drying method of first low temperature and then high temperature for the ceramic jar embryo, and better controls the temperature and humidity of each stage of drying, so that the drying time of the ceramic jar embryo is short, and the embryo is dried evenly, is not affected by the natural environment, and reduces the occurrence of cracks in the embryo.

[0007] As a preferred solution of the present invention, the drying room further comprises a controller, and the controller is electrically connected to the temperature sensor, the humidity sensor, the convection fan and the dehumidification fan. When it is detected that the temperature and humidity of the drying room exceed the standard, the controller automatically turns on the convection fan and the dehumidification fan to perform disturbance adjustment on the temperature and humidity in the upper and lower drying rooms, thereby realizing automatic adjustment of the temperature and humidity of the drying room.

[0008] As a preferred solution of the present invention, the air duct is also provided with an electric control valve for adjusting the amount of hot air entering the lower drying room, the electric control valve is located at the rear end of the exhaust fan outlet, and the electric control valve is electrically connected to the controller. When it is necessary to adjust the temperature of the lower drying room over a large range, the controller can be used to control the electric control valve to adjust the air volume of the air duct.

[0009] As a preferred solution of the present invention, an air filter is also provided on the air guide duct, and the air filter is located at the front end of the exhaust fan inlet to prevent kiln dust from entering the drying room.

[0010] As a preferred embodiment of the present invention, the outer wall of the air duct is wrapped with a heat-insulating layer to reduce heat exchange between the hot air in the air duct and the outside.

[0011] As a preferred solution of the present invention, a dispersion plate is provided at the outlet end of the air duct, a cavity connected to the air duct is provided in the dispersion plate, and a plurality of air outlet holes connected to the cavity are evenly provided on the dispersion plate. The pressure of the hot air at the outlet end of the air duct is reduced after entering the cavity in the dispersion plate, and the hot air is evenly dispersed through the plurality of air outlet holes on the dispersion plate, thereby avoiding impact on the ceramic jar embryo.

[0012] As a preferred solution of the present invention, the wall of the drying room is made of thermal insulation material, which can reduce heat loss in the drying room.

[0013] As a preferred embodiment of the present invention, the lifting platform includes a top plate and a bottom plate arranged up and down, a lifting mechanism is arranged between the top plate and the bottom plate, the lifting mechanism drives the top plate to move up and down relative to the bottom plate, guardrails are arranged on the left and right sides of the top plate, and also includes a door frame, the door frame includes side frames arranged on the left and right sides of the platform and a top frame arranged on the top of the two side frames, the two side frames and the top frame form a door-shaped structure, and a railing is arranged on the front of the door frame, the railing is connected to the two side frames and the lower edge of the railing is higher than the floor of the upper drying room. By installing the bottom plate on the floor of the lower drying room, the ceramic jar embryo is transferred to the top plate by a forklift, and the lifting mechanism drives the top plate to rise to the floor surface of the upper drying room, and then it can be transferred to the upper drying room by a hand forklift. Guardrails are arranged on the left and right sides of the top plate to play a protective role, and the door frame can form protection above the platform and on the left and right sides. The front of the door frame is provided with a railing, and the railing is connected to the side frames on the left and right sides and the lower edge of the railing is higher than the floor surface of the upper drying room, which can protect the transfer personnel in the upper drying room.

[0014] As a preferred solution of the present invention, push rods are respectively provided on the left and right sides of the top plate, and the height of the push rods is equal to the lifting height of the platform. A fence door is supported at the upper ends of the two push rods, and at least one roller is respectively provided on the left and right sides of the fence door, and the roller moves along the track on the side frame. By arranging the push rods on the top plate, when the platform rises, the push rods push the fence door to rise, so that the fence door is opened, which is convenient for the ceramic jar embryo to be transported to the upper drying room; when the platform descends, the fence door will automatically descend with the push rods due to its own weight, and finally stay on the floor surface of the upper drying room, so that the fence door is closed to prevent the transport personnel of the upper drying room from falling, that is, the fence door at the entrance of the upper drying room can be opened and closed automatically, and the rollers on both sides of the fence door move along the track on the side frame, which can guide the lifting and lowering of the fence door.

[0015] A method for drying a large ceramic jar embryo, using the above-mentioned drying room to dry the ceramic jar embryo is as follows:

[0016] Step 1: The hot air in the ceramic firing kiln is introduced into the lower drying room through the exhaust fan, and the heat is transferred to the upper drying room through the floor;

[0017] Step 2: transport the demoulded ceramic jar embryo to the upper drying room for pre-drying, control the temperature of the upper drying room at 30-35°C, the humidity at 35-40%, and the drying time for 3-4 days;

[0018] Step 3: Transfer the ceramic jar embryos pre-dried in the upper drying room to the lower drying room, control the temperature in the lower drying room at 50-55°C, the humidity at 5-10%, and the drying time for 5-6 days.

[0019] The method introduces hot air from a kiln into a lower drying room, and the heat is transferred to an upper drying room through a floor slab. The upper drying room performs low-temperature pre-drying on the ceramic jar embryo, and the lower drying room performs high-temperature final drying on the ceramic jar embryo, thereby achieving a two-stage drying method of first low temperature and then high temperature for the ceramic jar embryo, while controlling the temperature, humidity and drying time of each stage of drying. Compared with traditional natural drying, the method greatly shortens the drying time of the ceramic jar embryo, and is also beneficial to improving the drying quality of the embryo.

[0020] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are:

[0021] 1. The present invention introduces hot air generated when the kiln fires ceramics into the lower drying room through an exhaust fan, and the heat is transferred to the upper drying room through the floor slab. The upper drying room performs low-temperature pre-drying on the ceramic cylinder embryo, and the lower drying room performs high-temperature final drying on the ceramic cylinder embryo. At the same time, the temperature and humidity of the upper and lower drying rooms are monitored by arranging temperature sensors and humidity sensors, and the temperature and humidity in the upper and lower drying rooms are disturbed and adjusted by using convection fans and dehumidification fans, and a lifting platform is arranged to facilitate the transportation of the ceramic cylinder embryo between the upper drying room and the lower drying room; the drying room makes full use of the heat of the kiln, adopts a two-stage drying method of first low temperature and then high temperature for the ceramic cylinder embryo, and better controls the temperature and humidity of each stage of drying, so that the drying time of the ceramic cylinder embryo is short, and the embryo is dried evenly, is not affected by the natural environment, and reduces the occurrence of cracks in the embryo;

[0022] 2. By installing the bottom plate on the floor of the lower drying room, the ceramic jar embryos are transferred to the top plate by a forklift. The lifting mechanism drives the top plate to rise to the floor of the upper drying room, and then the top plate can be transferred to the upper drying room by a hand forklift. Guardrails are provided on the left and right sides of the top plate for protection. The door frame can protect the upper part and the left and right sides of the platform. A railing is provided on the front of the door frame, and the railing is connected to the side frames on the left and right sides. The lower edge of the railing is higher than the floor of the upper drying room, which can protect the transfer personnel in the upper drying room.

[0023] 3. By setting a push rod on the top plate, when the platform rises, the push rod pushes the fence door up to open the fence door, which is convenient for transferring the ceramic jar embryos to the upper drying room; when the platform descends, the fence door will automatically descend with the push rod due to its own weight, and finally stay on the floor of the upper drying room, so as to close the fence door and prevent the transfer personnel in the upper drying room from falling. That is, the fence door at the entrance of the upper drying room can be opened and closed automatically, and the rollers on both sides of the fence door move along the tracks on the side frames, which can guide the lifting and lowering of the fence door;

[0024] 4. This method introduces hot air from the kiln into the lower drying room, and the heat is transferred to the upper drying room through the floor. The upper drying room performs low-temperature pre-drying on the ceramic jar embryo, and the lower drying room performs high-temperature final drying on the ceramic jar embryo, thereby realizing a two-stage drying method of first low temperature and then high temperature for the ceramic jar embryo. At the same time, the temperature, humidity and drying time of each stage of drying are controlled. Compared with traditional natural drying, the drying time of the ceramic jar embryo is greatly shortened, and it is also beneficial to improve the drying quality of the embryo. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of a drying room for large ceramic jar embryos in the present invention.

[0026] Figure 2 This is the main view of the entrance to the upper drying room.

[0027] Figure 3 This is the left view of the lifting platform.

[0028] Figure 4 A schematic diagram of the side frame.

[0029] Figure 5 This is the front view of the portal frame.

[0030] Markings in the figure: 1-top plate, 2-bottom plate, 3-guardrail, 4-side frame, 5-top frame, 6-rail, 7-support rod, 8-hinge shaft, 9-connecting rod, 10-driving member, 11-reinforcement rod, 12-top rod, 13-fence door, 14-roller, A-lower drying room, B-upper drying room, 15-floor, 16-air duct, 17-exhaust fan, 18-convection fan, 19-dehumidification fan, 20-electrically controlled valve, 21-air filter, 22-dispersion disk. DETAILED DESCRIPTION

[0031] The present invention will be described in detail below in conjunction with the accompanying drawings.

[0032] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0033] Example 1

[0034] This embodiment provides a drying room for large ceramic jar embryos;

[0035] like Figure 1-Figure 5As shown, the drying room for large ceramic jar embryos in this embodiment is provided with a floor 15 capable of heat transfer in the drying room, and the floor 15 divides the drying room into an upper drying room B and a lower drying room A. The lower drying room A is connected to the kiln through an air duct 16, and an exhaust fan 17 is provided on the air duct 16. The exhaust fan 17 introduces the hot air in the kiln into the lower drying room A. The upper drying room B and the lower drying room A are both provided with temperature sensors and humidity sensors, and the tops of the upper drying room B and the lower drying room A are both provided with a plurality of convection fans 18, and the side walls of the upper drying room B and the lower drying room A are both provided with a plurality of dehumidification fans 19. A lifting platform is also included, and the lifting platform is used for the transportation of ceramic jar embryos between the upper drying room B and the lower drying room A.

[0036] The present invention introduces hot air generated when the kiln fires ceramics into the lower drying room through an exhaust fan, and the heat is transferred to the upper drying room through the floor slab. The upper drying room performs low-temperature pre-drying on the ceramic jar embryo, and the lower drying room performs high-temperature final drying on the ceramic jar embryo. At the same time, the temperature and humidity of the upper and lower drying rooms are monitored by arranging temperature sensors and humidity sensors, and the temperature and humidity in the upper and lower drying rooms are disturbed and adjusted by using convection fans and dehumidification fans. A lifting platform is arranged to facilitate the transportation of the ceramic jar embryo between the upper and lower drying rooms. The drying room makes full use of the heat of the kiln, adopts a two-stage drying method of first low temperature and then high temperature for the ceramic jar embryo, and better controls the temperature and humidity of each stage of drying, so that the drying time of the ceramic jar embryo is short, and the embryo is dried evenly, is not affected by the natural environment, and reduces the occurrence of cracks in the embryo.

[0037] In this embodiment, the drying room further includes a controller, which is electrically connected to the temperature sensor, the humidity sensor, the convection fan 18 and the dehumidification fan 19. When it is detected that the temperature and humidity of the drying room exceed the standard, the controller automatically turns on the convection fan and the dehumidification fan to perform disturbance adjustment on the temperature and humidity in the upper and lower drying rooms, thereby realizing automatic adjustment of the temperature and humidity of the drying room.

[0038] In this embodiment, the air duct 16 is further provided with an electric control valve 20 for adjusting the amount of hot air entering the lower drying room A. The electric control valve 20 is located at the rear end of the outlet of the exhaust fan 17, and the electric control valve 20 is electrically connected to the controller. When it is necessary to adjust the temperature of the lower drying room over a large range, the controller can control the electric control valve to adjust the air volume of the air duct.

[0039] In this embodiment, an air filter 21 is further provided on the air guide duct 16. The air filter 21 is located at the front end of the inlet of the exhaust fan 17 to prevent kiln dust from entering the drying room.

[0040] In this embodiment, the outer wall of the air duct 16 is wrapped with an insulation layer to reduce the heat exchange between the hot air in the air duct and the outside. Preferably, the air duct 16 is buried underground and laid out in an underground pipe network to avoid affecting the layout of other production equipment in the workshop.

[0041] In this embodiment, a dispersion plate 22 is provided at the outlet end of the air duct 16, a cavity communicating with the air duct 16 is provided in the dispersion plate 22, and a plurality of air outlet holes communicating with the cavity are evenly provided on the dispersion plate 22. The pressure of the hot air at the outlet end of the air duct is reduced after entering the cavity in the dispersion plate, and the hot air is evenly dispersed through the plurality of air outlet holes on the dispersion plate, thereby avoiding impact on the ceramic jar embryo.

[0042] In this embodiment, the wall of the drying room is made of thermal insulation material, which can reduce the heat loss in the drying room. Preferably, the wall of the drying room is a color steel plate movable room wall, which specifically adopts the specifications and dimensions of the color steel plate covered polyethylene foam sandwich composite board product, and the space interval can be determined according to needs. The service life is as long as 10-20 years, and it is thermally insulating and beautiful in appearance.

[0043] In this embodiment, the lifting platform includes a top plate 1 and a bottom plate 2 arranged up and down, and a lifting mechanism is provided between the top plate 1 and the bottom plate 2. The lifting mechanism drives the top plate 1 to move up and down relative to the bottom plate 2. Guardrails 3 are provided on the left and right sides of the top plate 1, and also include a door-type frame. The door-type frame includes side frames 4 arranged on the left and right sides of the platform and a top frame 5 arranged on the top ends of the two side frames 4. The two side frames 4 and the top frame 5 form a door-shaped structure. A W-shaped railing 6 is provided on the front of the door-type frame. The railing 6 is connected to the side frames 4 on the left and right sides, and the lower edge of the railing 6 is higher than the floor surface of the upper drying room B. By installing the bottom plate on the floor of the lower drying room, the ceramic jar blank is transferred to the top plate by a forklift. The lifting mechanism drives the top plate to rise to the floor surface of the upper drying room, and then it can be transferred to the upper drying room by a hand forklift. Guardrails are provided on the left and right sides of the top plate for protection. The door frame can form protection for the upper part and the left and right sides of the platform. A railing is provided on the front of the door frame, and the railing is connected to the side frames on the left and right sides, and the lower edge of the railing is higher than the floor surface of the upper drying room, which can protect the transfer personnel in the upper drying room.

[0044] In this embodiment, the lifting mechanism includes two groups of support members arranged between the top plate 1 and the bottom plate 2, each group of support members includes two support rods 7 hinged in an X shape through a hinge shaft 8, one end of one support rod 7 is rotatably connected to the bottom plate 2, and the other end is slidably connected to the top plate 1, and one end of the other support rod 7 is slidably connected to the bottom plate 2, and the other end is rotatably connected to the top plate 1. A connecting rod 9 is provided between the two groups of support members 7, and a driving member 10 is connected to the connecting rod 9, and the driving member 10 is used to drive the support rods 7 to rotate relative to the hinge shaft 8. Specifically, the lower ends of the two inner support rods 7 slide on the bottom plate 2, and the upper ends are hinged to the top plate 1; the lower ends of the two outer support rods 7 are hinged to the bottom plate 2, and the upper ends slide on the top plate 1; the connecting rod 9 connects the two inner support rods 7. By adopting the two groups of support rods in an X-shaped hinge arrangement, and driving the support rods to rotate relative to the hinge center through the driving member, the lifting function of the top plate is realized, and the mechanism is stable in lifting and lowering and stable in support.

[0045] In this embodiment, the driving member 10 is at least one hydraulic cylinder, which is rotatably connected to the bottom plate 2, and the piston rod of the hydraulic cylinder is rotatably connected to the connecting rod 9. The hydraulic cylinder drives the connecting rod, thereby rotating the support rod around the hinge center to realize the lifting and lowering of the top plate.

[0046] Preferably, there are two hydraulic cylinders, and the two hydraulic cylinders are arranged symmetrically relative to the center of the connecting rod 9, so that the support can rotate powerfully and smoothly. When the platform is lifted or lowered, the two hydraulic cylinders are extended and retracted synchronously.

[0047] In this embodiment, the side frame 4 includes a square-shaped frame, and a cross-shaped reinforcing rod 11 is connected inside the frame to enhance the structural rigidity of the side frame.

[0048] In this embodiment, the top plate 1 is provided with 7-shaped top rods 12 on both sides, and the height of the top rods 12 is equal to the platform lifting height. A fence door 13 is supported at the upper ends of the two top rods 12, and at least one roller 14 is provided on the left and right sides of the fence door 13, respectively, and the roller 14 moves along the track on the side frame 4. By arranging the top rods on the top plate, when the platform rises, the top rods push the fence door up to open the fence door, which is convenient for the ceramic jar embryo to be transported to the upper drying room; when the platform descends, the fence door will automatically descend with the top rods due to its own weight, and finally stay on the floor surface of the upper drying room, so as to close the fence door and prevent the transport personnel of the upper drying room from falling, that is, the fence door at the entrance of the upper drying room can be opened and closed automatically, and the rollers on both sides of the fence door move along the track on the side frame, which can guide the lifting of the fence door.

[0049] Preferably, two rollers 14 are respectively arranged on the left and right sides of the fence door 13, which can provide a stable support effect on each side of the fence door. The track is arranged on the vertical rod of the side frame 4, and the track is adapted to the rollers.

[0050] Example 2

[0051] This embodiment provides a method for drying a large ceramic jar embryo. The steps of drying the ceramic jar embryo using the drying room described in Embodiment 1 are as follows:

[0052] Step 1: The hot air in the ceramic firing kiln is introduced into the lower drying room through the exhaust fan, and the heat is transferred to the upper drying room through the floor;

[0053] Step 2: transport the demoulded ceramic jar embryo to the upper drying room for pre-drying, control the temperature of the upper drying room at 30-35°C, the humidity at 35-40%, and the drying time for 3-4 days;

[0054] Step 3: Transfer the ceramic jar embryos pre-dried in the upper drying room to the lower drying room, control the temperature in the lower drying room at 50-55°C, the humidity at 5-10%, and the drying time for 5-6 days.

[0055] The method introduces hot air from a kiln into a lower drying room, and the heat is transferred to an upper drying room through a floor slab. The upper drying room performs low-temperature pre-drying on the ceramic jar embryo, and the lower drying room performs high-temperature final drying on the ceramic jar embryo, thereby achieving a two-stage drying method of first low temperature and then high temperature for the ceramic jar embryo, while controlling the temperature, humidity and drying time of each stage of drying. Compared with traditional natural drying, the method greatly shortens the drying time of the ceramic jar embryo, and is also beneficial to improving the drying quality of the embryo.

[0056] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A drying room for large ceramic jar embryos, characterized in that: The drying room is provided with a floor capable of conducting heat, the floor divides the drying room into an upper drying room and a lower drying room, the lower drying room is connected to the kiln through an air duct, the air duct is provided with an exhaust fan, the exhaust fan introduces hot air in the kiln into the lower drying room, the upper drying room and the lower drying room are both provided with temperature sensors and humidity sensors, the tops of the upper drying room and the lower drying room are both provided with a plurality of convection fans, the side walls of the upper drying room and the lower drying room are both provided with a plurality of dehumidification fans, and also includes a lifting platform, the lifting platform is used for the transportation of ceramic jar embryos between the upper drying room and the lower drying room; The lifting platform comprises a top plate and a bottom plate arranged up and down, a lifting mechanism is arranged between the top plate and the bottom plate, the lifting mechanism drives the top plate to move up and down relative to the bottom plate, guardrails are arranged on the left and right sides of the top plate, and also comprises a door-shaped frame, the door-shaped frame comprises side frames arranged on the left and right sides of the platform and a top frame arranged on the top ends of the two side frames, the two side frames and the top frame form a door-shaped structure, a railing is arranged on the front of the door-shaped frame, the railing is connected to the two side frames and the lower edge of the railing is higher than the floor of the upper drying room; The top plate is provided with top rods on the left and right sides respectively, the height of the top rods is equal to the platform lifting height, a fence door is supported at the upper ends of the two top rods, and at least one roller is provided on the left and right sides of the fence door respectively, and the roller moves along the track on the side frame.

2. The drying room for large ceramic jar embryos according to claim 1 is characterized in that: The drying room further comprises a controller, which is electrically connected to the temperature sensor, the humidity sensor, the convection fan and the dehumidification fan.

3. The drying room for large ceramic jar embryos according to claim 2 is characterized in that: The air guide duct is also provided with an electric control valve for adjusting the amount of hot air entering the lower drying room. The electric control valve is located at the rear end of the exhaust fan outlet and is electrically connected to the controller.

4. The drying room for large ceramic jar embryos according to claim 3 is characterized in that: The air guide pipe is also provided with an air filter, and the air filter is located at the front end of the exhaust fan inlet.

5. The drying room for large ceramic jar embryos according to any one of claims 1 to 4, characterized in that: The outer wall of the air guide duct is wrapped with a heat-insulating layer.

6. The drying room for large ceramic jar embryos according to claim 5, characterized in that: The outlet end of the air duct is provided with a dispersion plate, a cavity communicated with the air duct is provided in the dispersion plate, and a plurality of air outlet holes communicated with the cavity are evenly provided on the dispersion plate.

7. The drying room for large ceramic jar embryos according to any one of claims 1 to 4, characterized in that: The wall of the drying room is made of thermal insulation material.

8. A method for drying a large ceramic jar embryo, characterized in that: The steps of drying the ceramic jar embryo using the drying room described in any one of claims 1 to 7 are as follows: Step 1: The hot air in the ceramic firing kiln is introduced into the lower drying room through the exhaust fan, and the heat is transferred to the upper drying room through the floor; Step 2: transport the demoulded ceramic jar embryo to the upper drying room for pre-drying, control the temperature of the upper drying room at 30-35°C, the humidity at 35-40%, and the drying time for 3-4 days; Step 3: Transfer the ceramic jar embryos pre-dried in the upper drying room to the lower drying room, control the temperature in the lower drying room at 50-55°C, the humidity at 5-10%, and the drying time for 5-6 days.

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