A charcoal-fired kiln for root art pottery

Abstract

The utility model discloses a root art pottery's firewood burning kiln relates to root art pottery firewood burning technical field. Root art pottery's firewood burning kiln, including kiln body, the kiln body side fixed mounting has the combustion chamber, and the air inlet of combustion chamber is fixedly connected with the air blower through the air inlet pipe, and the side of combustion chamber is equipped with the feed inlet, and the feed inlet is fixedly connected with the fuel bin through the communicating pipeline, and one end of communicating pipeline is linked with the bottom of fuel bin, and the other end is linked with the feed inlet of combustion chamber, and the servo motor is fixedly installed below fuel bin, and the output shaft of servo motor extends along the length direction of communicating pipeline, and the output shaft is fixedly installed with spiral feed piece, and spiral feed piece rotates and is installed in communicating pipeline, and the automatic feed and discharge device is arranged on the kiln body, and the maintenance frequency of machine, and the whole realizes the automatic operation through mechanical linkage, reduces manual intervention, and both improves production efficiency, and guarantees the unique artistic effect of root art pottery firewood burning craft.

Description

Technical Field

[0001] This utility model relates to the field of wood-fired root art pottery technology, and in particular to a wood-fired kiln for root art pottery. Background Technology

[0002] Patent application number CN202122136710.5 discloses a wood-fired kiln for root art pottery. This solution addresses the common problems of most wood-fired kilns for root art pottery on the market, which cannot filter and purify exhaust fumes, potentially releasing them directly into the atmosphere and polluting the surrounding environment. Furthermore, the inability to increase the combustion area of ​​the wood during use may result in low combustion efficiency and poor practicality. However, this solution has several drawbacks in its firing method. First, the feeding and unloading of the clay blanks relies heavily on manual handling, which is not only labor-intensive but also poses safety hazards in high-temperature environments. Manual handling can also lead to collisions and damage to the clay blanks, affecting the yield. Second, the fuel supply lacks precise control, relying primarily on manual addition of wood. It is difficult to adjust the feed amount in real time according to firing requirements, often resulting in excessive fuel causing overheating and a sudden temperature rise, or insufficient fuel causing a temperature drop. This leads to drastic temperature fluctuations within the kiln, resulting in uneven sintering of the root art pottery blanks, cracking, deformation, and other problems, severely impacting the quality of the finished product.

[0003] Furthermore, the kiln's sealing performance is poor. Traditional kiln doors often use simple manual closing methods, making it difficult to achieve a tight seal. This leads to the leakage of high-temperature flue gas, causing heat loss and increasing energy consumption. Additionally, the unstable flue gas flow results in uneven wood ash adhesion, making it difficult to control the artistic effects of ash glaze and fire marks on the surface of root art pottery, resulting in inconsistent textures in the finished pieces. Moreover, temperature monitoring and adjustment during firing rely on manual experience, lacking effective automation. Operators must frequently observe the kiln and manually adjust the settings, which is not only time-consuming and labor-intensive but also makes it difficult to ensure consistent firing parameters. This leads to significant differences in color and texture within the same batch of pieces, reducing the product's stability and artistry.

[0004] Meanwhile, traditional wood-fired kilns have low combustion efficiency, resulting in incomplete combustion of wood. This not only wastes fuel but also produces a large amount of unburned impurities, affecting flue gas quality and consequently negatively impacting the surface finish of root art pottery. Furthermore, manual operation lacks timeliness and cannot achieve continuous production, leading to low production efficiency and difficulty in meeting the demands of large-scale production. These problems collectively restrict the development of wood-fired root art pottery techniques, making traditional methods significantly inadequate in terms of production efficiency, finished product quality, artistic stability, and production safety, thus failing to meet the demands of modern root art pottery production for high efficiency, precision, and stability. Utility Model Content

[0005] The purpose of this utility model is to solve at least one of the technical problems existing in the prior art, and to provide a wood-fired kiln for root pottery that can solve the problems of low efficiency, high labor intensity and easy temperature fluctuation in the kiln due to improper operation timing when manually feeding and unloading materials.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A wood-fired kiln for root art pottery includes a kiln body. A combustion chamber is fixedly installed on the side of the kiln body. The air inlet of the combustion chamber is fixedly connected to a blower through an air inlet pipe. A feed inlet is provided on the side of the combustion chamber. The feed inlet is fixedly connected to a fuel bin through a connecting pipe. One end of the connecting pipe is connected to the bottom of the fuel bin, and the other end is connected to the feed inlet of the combustion chamber. A servo motor is fixedly installed below the fuel bin. The output shaft of the servo motor extends along the length of the connecting pipe, and a spiral feed blade is fixedly installed on the output shaft. The spiral feed blade is rotatably installed in the connecting pipe. An automatic feeding and discharging device is provided on the kiln body.

[0008] The automatic feeding and discharging device includes: roller conveyor, frame, stepper motor, worm gear, worm wheel, drum, front door, pulley, steel cable, support rod, rear door, and base.

[0009] Preferably, the roller conveyor is fixedly installed below the kiln body, with its conveying direction facing the kiln body inlet, and the upper surface of the roller conveyor is flush with the bottom surface of the kiln body inlet. The base is driven and installed on the roller conveyor to carry the root art ceramic blanks.

[0010] Preferably, the frame is fixedly installed around the kiln body, with the front end of the frame corresponding to the kiln body inlet and the rear end corresponding to the kiln body outlet.

[0011] Preferably, the two stepper motors are fixedly mounted at the front and rear ends of the frame, respectively, and the two worm gears are fixedly mounted on the output shafts of the two stepper motors in the horizontal direction.

[0012] Preferably, the two drums are rotatably mounted on the front and rear ends of the frame and on the same side as the stepper motor, and the two worm gears are fixedly mounted on the ends of the two drums near the worms, and the two worms mesh with the two worm gears for transmission.

[0013] Preferably, both support rods are fixedly installed horizontally above the frame, and four pulleys are rotatably connected to the two ends of the two support rods in pairs.

[0014] Preferably, vertical slide rails are fixedly installed at corresponding positions at the front and rear ends of the frame, the front door is slidably connected to the slide rail at the front end of the frame and faces the inlet of the kiln, and the rear door is slidably connected to the slide rail at the rear end of the frame and faces the outlet of the kiln.

[0015] Preferably, the four steel cables are respectively fitted onto four pulleys, wherein one end of the two steel cables at the front end of the frame is symmetrically wound around the front drum, and the other end is fixedly installed on the top of the front door; one end of the two steel cables at the rear end of the frame is symmetrically wound around the rear drum, and the other end is fixedly installed on the top of the rear door.

[0016] Compared with the prior art, the beneficial effects of this utility model are:

[0017] The wood-fired kiln for this root art pottery provides a closed and stable high-temperature environment. Combined with the high-temperature flue gas generated in the combustion chamber, it ensures that the root art pottery blanks are sintered evenly. At the same time, the wood ash in the flue gas and the airflow create a unique artistic texture. The roller conveyor works with the base to realize the automated entry and exit of the blanks, reducing damage caused by manual handling and improving operating efficiency. The frame serves as a supporting skeleton, and together with stepper motors, worm gears, worm wheels and other components, it drives the front and rear doors to lift and lower precisely, ensuring that the kiln body is tightly sealed, avoiding temperature loss and flue gas leakage, and stabilizing the firing environment.

[0018] The wood-fired kiln for this root art pottery features a blower that regulates the air supply to the combustion chamber, and a servo motor and spiral feeder that control the fuel delivery. These two components work together to precisely control the combustion intensity, ensuring stable kiln temperature and improving the consistency of finished product quality. Pulleys and steel cables change the direction of force, and in conjunction with support rods, ensure smooth door lifting and lowering, reducing mechanical wear and extending equipment life. The fuel tank's structural design allows the wood to fall naturally, and combined with the spiral feeder, it prevents pipe blockage, ensuring a continuous fuel supply and reducing downtime for maintenance. The entire system is automated through mechanical linkage, reducing manual intervention, improving production efficiency while preserving the unique artistic effect of the wood-fired root art pottery process. Attached Figure Description

[0019] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0020] Figure 1 This is a schematic diagram of a wood-fired kiln for root art pottery according to this utility model;

[0021] Figure 2 This is a schematic diagram of a wood-fired kiln for root art pottery according to this utility model;

[0022] Figure 3 This is a schematic cross-sectional view of a wood-fired kiln for root art pottery according to this utility model.

[0023] Figure 4 This is a schematic cross-sectional view of a wood-fired kiln for root pottery according to the present invention.

[0024] Reference numerals: 1. Kiln body; 2. Roller conveyor; 3. Frame; 4. Stepper motor; 5. Worm gear; 6. Worm wheel; 7. Drum; 8. Front door; 9. Pulley; 10. Steel cable; 11. Support rod; 12. Rear door; 13. Base; 14. Combustion chamber; 15. Fuel bin; 16. Blower; 17. Servo motor; 18. Spiral feed plate. Detailed Implementation

[0025] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0026] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0027] In the description of this utility model, terms such as greater than, less than, and exceeding are understood to exclude the stated number, while terms such as above, below, and within are understood to include the stated number. The use of terms like "first" and "second" is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the quantity or sequence of the indicated technical features.

[0028] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0029] Please see Figure 1-4 This utility model provides a technical solution: a wood-fired kiln for root pottery, including a kiln body 1, a combustion chamber 14 fixedly installed on the side of the kiln body 1, an air inlet of the combustion chamber 14 fixedly connected to a blower 16 through an air inlet pipe, a feed inlet provided on the side of the combustion chamber 14, the feed inlet being fixedly connected to a fuel bin 15 through a connecting pipe, one end of the connecting pipe being connected to the bottom of the fuel bin 15, and the other end being connected to the feed inlet of the combustion chamber 14, a servo motor 17 fixedly installed below the fuel bin 15, the output shaft of the servo motor 17 extending along the length of the connecting pipe, and a spiral feed blade 18 fixedly installed on the output shaft, the spiral feed blade 18 being rotatably fitted inside the connecting pipe, and an automatic feeding and discharging device being provided on the kiln body 1;

[0030] The continuous combustion of wood is achieved through automatic fuel supply, generating high-temperature flue gas to fire the root art ceramic blanks inside the kiln 1. At the same time, the automatic feeding and discharging device completes the automatic conveying of the blanks and the sealing control of the kiln. The blower 16 is started, and external air enters the combustion chamber 14 through the air inlet pipe to provide oxygen for combustion. The servo motor 17 below the fuel bin 15 is started, and its output shaft drives the spiral feed blade 18 to rotate in the connecting pipe. The wood in the fuel bin 15 enters the pipe through the connection between the bottom and the connecting pipe, and is pushed to the feed port of the combustion chamber 14 by the spiral feed blade 18. In the combustion chamber 14, the wood mixes and burns with the air supplied by the blower 16, generating high-temperature flue gas. The flue gas enters the kiln 1 to heat and fire the root art ceramic blanks inside. During the firing process, the servo motor 17 controls the wood feed by adjusting the speed of the spiral feed blade 18, and the blower 16 controls the combustion intensity by adjusting the air volume to maintain the firing temperature inside the kiln 1.

[0031] The automatic feeding and discharging device includes: roller conveyor 2, frame 3, stepper motor 4, worm gear 5, worm wheel 6, drum 7, front door 8, pulley 9, steel cable 10, support rod 11, rear door 12, and base 13;

[0032] The roller conveyor 2 is fixedly installed below the kiln body 1, with its conveying direction facing the inlet of the kiln body 1. The upper surface of the roller conveyor 2 is flush with the bottom surface of the inlet of the kiln body 1. The base 13 is installed on the roller conveyor 2 in a transmission cooperation manner to carry the root art ceramic blanks.

[0033] The operator places the root art pottery blank on the base 13 to ensure that the blank is stably supported, and starts the roller conveyor 2. Its conveying direction is directly opposite the inlet of the kiln body 1, and its upper surface is flush with the bottom surface of the inlet of the kiln body 1. The base 13 moves into the kiln body 1 with the roller conveyor 2 through the transmission. When the base 13 is completely inside the kiln body 1, the roller conveyor 2 stops running.

[0034] The frame 3 is fixedly installed around the kiln body 1, with the front end of the frame 3 corresponding to the inlet of the kiln body 1 and the rear end corresponding to the outlet of the kiln body 1.

[0035] Two stepper motors 4 are fixedly installed at the front and rear ends of the frame 3, respectively, and two worm gears 5 are fixedly installed on the output shafts of the two stepper motors 4 in the horizontal direction, respectively.

[0036] Two drums 7 are rotatably mounted on the front and rear ends of the frame 3 and on the same side as the stepper motor 4. Two worm gears 6 are fixedly mounted on the ends of the two drums 7 near the worm 5, and the two worms 5 are respectively meshed with the two worm gears 6 for transmission.

[0037] Both support rods 11 are fixedly installed on the top of the frame 3 in a horizontal direction, and four pulleys 9 are rotatably connected to the two ends of the two support rods 11 in pairs.

[0038] Vertical slide rails are fixedly installed at the front and rear ends of frame 3 respectively. The front door 8 is slidably connected to the slide rail at the front end of frame 3 and faces the inlet of kiln body 1. The rear door 12 is slidably connected to the slide rail at the rear end of frame 3 and faces the outlet of kiln body 1.

[0039] Four steel cables 10 are respectively fitted onto four pulleys 9. The two steel cables 10 at the front end of the frame 3 are symmetrically wound around the front drum 7 at one end, and the other end is fixedly installed on the top of the front door 8. The two steel cables 10 at the rear end of the frame 3 are symmetrically wound around the rear drum 7 at one end, and the other end is fixedly installed on the top of the rear door 12.

[0040] When the stepper motor 4 at the front end of the control frame 3 is started, its output shaft drives the worm 5 to rotate. The worm 5 meshes with the worm wheel 6, causing the drum 7 at the front end to rotate synchronously. The two steel cables 10 wound on it change the direction of force through the pulleys 9 at both ends of the support rod 11. The steel cables 10 pull the front door 8 to slide upward along the vertical slide rail at the front end of the frame 3 until the front door 8 completely closes the inlet of the kiln body 1. The stepper motor 4 stops. Similarly, the stepper motor 4 at the rear end of the frame 3 is started. Through the linkage of the worm 5, worm wheel 6, drum 7, steel cables 10 and pulleys 9, the rear door 12 is driven to slide upward along the vertical slide rail at the rear end of the frame 3, closing the outlet of the kiln body 1 and completing the full sealing of the kiln body.

[0041] After firing, the servo motor 17 and blower 16 are turned off to stop fuel supply and air blowing. Combustion chamber 14 stops burning. After the temperature inside the kiln 1 drops to a safe range, the stepper motors 4 at both ends of the frame 3 are reversed, driving the worm 5, worm wheel 6 and drum 7 to rotate in the opposite direction. The steel cable 10 is released, and the front door 8 and rear door 12 slide down the vertical slide rail under the action of gravity, opening the inlet and outlet of the kiln 1. The roller conveyor 2 is restarted, driving the base 13 and the fired root art ceramic blanks out of the kiln 1 to complete the discharge.

[0042] Working principle: When in use, the staff places the root art ceramic blank on the base 13. The roller conveyor 2 sends the base 13 into the kiln body 1. The stepper motor 4 on the frame 3 drives the worm gear 5 and worm wheel 6 to drive the drum 7 to rotate. The steel cable 10 pulls the front door 8 and the rear door 12 along the slide rail to close the kiln body 1. The wood in the fuel bin 15 is sent into the combustion chamber 14 by the spiral feed plate 18 driven by the servo motor 17. The blower 16 blows air to assist combustion and generate high-temperature flue gas to enter the kiln body 1 for firing. After firing, the stepper motor 4 reverses to lower and open the front door 8 and the rear door 12. The roller conveyor 2 moves the base 13 and the finished product out of the kiln body 1.

[0043] The kiln body 1 provides a closed and stable high-temperature environment, which, combined with the high-temperature flue gas generated by the combustion chamber 14, ensures the uniform sintering of the root art ceramic blanks. At the same time, the wood ash and airflow in the flue gas create a unique artistic texture. The roller conveyor 2 works with the base 13 to realize the automated entry and exit of the blanks, reducing damage caused by manual handling and improving operating efficiency. The frame 3 serves as a supporting skeleton, and together with the stepper motor 4, worm gear 5, worm wheel 6 and other components, it drives the front door 8 and rear door 12 to accurately lift and lower, ensuring that the kiln body is tightly sealed, avoiding temperature loss and flue gas leakage, and stabilizing the firing environment.

[0044] Blower 16 regulates the air supply to combustion chamber 14, servo motor 17 and spiral feeder 18 control the fuel delivery, and the two work together to achieve precise control of combustion intensity, ensure stable kiln temperature, and improve the consistency of finished product quality. Pulley 9 and steel cable 10 change the direction of force, and together with support rod 11, make the door rise and fall smoothly, reduce mechanical wear, and extend equipment life. The structural design of fuel bin 15 allows wood to fall naturally, and together with spiral feeder 18, it avoids pipe blockage, ensures continuous fuel supply, and reduces the frequency of downtime maintenance. The whole system achieves automated operation through mechanical linkage, reduces manual intervention, improves production efficiency, and ensures the unique artistic effect of root pottery wood firing process.

[0045] Kiln 1: The whole is a closed cavity structure, which is the core space for firing root art pottery blanks. Its side is connected to the combustion chamber 14, and the bottom is corresponding to the roller conveyor 2. The front and rear ends are respectively equipped with inlets and outlets to provide a high-temperature firing environment, accommodate root art pottery blanks and high-temperature flue gas, and achieve the sintering of the blanks and the formation of artistic effects (such as ash glaze and fire marks) through flue gas circulation.

[0046] Roller conveyor 2: It is fixedly installed below the kiln body 1, with the conveying direction facing the inlet of the kiln body 1. Its upper surface is flush with the bottom surface of the inlet of the kiln body 1. The base 13 is installed on it for transmission and serves as the power device for conveying the billet. The roller rotates to drive the base 13 and the billet into and out of the kiln body 1. The design of the upper surface being flush with the bottom surface of the kiln body inlet can avoid bumps or jamming during the conveying of the billet.

[0047] Frame 3: Fixedly installed around the kiln body 1, with the front end corresponding to the inlet of the kiln body 1 and the rear end corresponding to the outlet of the kiln body 1. Stepper motor 4, drum 7, support rod 11 and vertical slide rail are installed on it, serving as the support skeleton of the automatic feeding and discharging device. It provides the installation foundation for the lifting mechanism (stepper motor 4, worm gear 5, etc.) of the front door 8 and rear door 12, ensuring the positional stability and linkage accuracy of each component.

[0048] Stepper motor 4: Two stepper motors 4 are fixedly installed at the front and rear ends of the frame 3 respectively. The output shaft is fixedly connected to the worm gear 5 to provide power for lifting and lowering the door. The rotation direction of the worm gear 5 is controlled by forward and reverse rotation, thereby realizing the opening (reverse rotation releases steel cable 10) and closing (forward rotation winds steel cable 10) of the front door 8 and the rear door 12.

[0049] Worm 5: Two worms 5 are fixedly installed on the output shafts of two stepper motors 4 in the horizontal direction, and mesh with worm wheel 6 to transmit the rotational motion of stepper motor 4 to worm wheel 6. At the same time, the deceleration characteristics of worm and worm wheel (reducing speed and increasing torque) are used to provide sufficient winding force for drum 7 to ensure the stability of steel cable 10 when pulling the door.

[0050] Worm Gear 6: Two worm gears 6 are fixedly installed on the ends of the two drums 7 near the worm 5, mesh with the worm 5, receive the power of the worm 5 and drive the drums 7 to rotate synchronously. The vertical conversion of the motion direction is achieved by meshing with the worm 5 (the worm rotates horizontally → the worm gear rotates vertically), which is adapted to the installation direction of the drums 7.

[0051] Drum 7: Two drums 7 are rotatably installed at the front and rear ends of the frame 3 (on the same side as the stepper motor 4), with worm gears 6 fixed at the ends and steel cables 10 wound around their surfaces. The winding or releasing of the steel cables 10 is achieved by rotation: when rotating forward, the steel cables 10 are wound and the door is pulled up to close; when rotating in reverse, the steel cables 10 are released and the door is lowered to open. It is the direct actuator for lifting and lowering the door.

[0052] Front door 8: It is connected to the vertical slide rail at the front end of the frame 3 by a slider, facing the inlet of the kiln body 1. The top is connected to the two steel cables 10 at the front end to close or open the inlet of the kiln body 1. When it rises, it fits tightly with the kiln inlet to achieve a seal (to ensure stable temperature during firing). When it falls, it opens the inlet to facilitate the entry of the green body.

[0053] Pulley 9: Four pulleys 9 are connected to the two ends of the two support rods 11 in pairs. The steel cable 10 is sleeved on the pulley 9, changing the direction of force on the steel cable 10 and converting the vertical rotational pull of the drum 7 into a vertical pull on the door body. At the same time, the wear of the steel cable 10 is reduced by rolling friction, ensuring the efficiency of force transmission.

[0054] Steel cable 10: Four steel cables 10 are respectively sleeved on four pulleys 9. The two front steel cables 10 connect the drum 7 to the front door 8, and the two rear steel cables 10 connect the drum 7 to the rear door 12. They transmit the tension of the drum 7 to the front door 8 and the rear door 12. They are the power transmission components for lifting and lowering the door. Their high strength characteristics can ensure the stability of the tension when the door is sealed.

[0055] Support rod 11: Both support rods 11 are fixedly installed on the top of the frame 3 in the horizontal direction, and pulleys 9 are installed at both ends to support the pulleys 9. By fixing the position of the pulleys 9, the transmission path of the steel cable 10 is ensured to be stable, and the steel cable 10 is prevented from shifting or loosening during the pulling process.

[0056] Rear door 12: It is connected to the vertical slide rail at the rear end of the frame 3 by a slider, facing the outlet of the kiln body 1. The top is connected to two steel cables 10 at the rear end to close or open the outlet of the kiln body 1. It moves synchronously with the front door 8 to achieve full sealing of the kiln body 1 (preventing flue gas leakage and temperature loss). When opened, it is convenient to remove the fired blanks.

[0057] Base 13: It is installed on the roller conveyor 2 for placing and supporting the root art ceramic blanks. Through the transmission cooperation with the roller conveyor 2, the blanks can be moved as a whole, avoiding wear or positional displacement caused by direct contact between the blanks and the conveyor.

[0058] Combustion chamber 14: As a space for burning wood, it is fixedly installed on the side of the kiln body 1. The side is provided with a feed inlet (connecting to the fuel bin 15) and an air inlet (connecting to the blower 16). High-temperature flue gas is generated through combustion. The flue gas directly enters the kiln body 1 to provide heat for firing. At the same time, the wood ash and airflow generated are the key to the formation of the texture of root art pottery.

[0059] Fuel bin 15: It is connected to the feed inlet of combustion chamber 14 through a connecting pipe. One end of the connecting pipe is connected to the bottom of fuel bin 15 and the other end is connected to the feed inlet of combustion chamber 14. A servo motor 17 is installed below fuel bin 15 to store wood to be burned. Through the connection design between the bottom and the connecting pipe, the wood falls naturally into the pipe under the action of gravity, continuously supplying fuel to combustion chamber 14.

[0060] Blower 16: It is fixedly connected to the air inlet of the combustion chamber 14 through the air inlet pipe, and is located outside the combustion chamber 14. It supplies air (oxygen) into the combustion chamber 14 and adjusts the combustion intensity: when the air volume increases, the wood burns more completely and the flue gas temperature rises; when the air volume decreases, the combustion tends to be slower, thus achieving indirect control of the temperature inside the kiln 1.

[0061] Servo motor 17: Fixedly installed below fuel tank 15, with output shaft extending along the length of the connecting pipe and fixedly connected to spiral feed plate 18, driving spiral feed plate 18 to rotate, controlling the amount of wood conveyed by adjusting the speed (more wood is fed when the speed is faster, less wood is fed when the speed is slower), and working with blower 16 to achieve precise control of combustion efficiency;

[0062] Spiral feed vane 18: Fixedly mounted on the output shaft of servo motor 17, and rotatably fitted inside the connecting pipe between fuel tank 15 and combustion chamber 14. Through the rotation of the spiral structure, it continuously pushes the wood falling from fuel tank 15 into the pipe to the feed inlet of combustion chamber 14, preventing wood from clogging the pipe and ensuring a continuous fuel supply.

[0063] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A wood-fired kiln for root art pottery, comprising a kiln body (1), characterized in that: A combustion chamber (14) is fixedly installed on the side of the kiln body (1). The air inlet of the combustion chamber (14) is fixedly connected to a blower (16) through an air inlet pipe. A feed inlet is provided on the side of the combustion chamber (14). The feed inlet is fixedly connected to a fuel bin (15) through a connecting pipe. One end of the connecting pipe is connected to the bottom of the fuel bin (15), and the other end is connected to the feed inlet of the combustion chamber (14). A servo motor (17) is fixedly installed below the fuel bin (15). The output shaft of the servo motor (17) extends along the length of the connecting pipe, and a spiral feed plate (18) is fixedly installed on the output shaft. The spiral feed plate (18) is rotatably installed in the connecting pipe. An automatic feeding and discharging device is provided on the kiln body (1). The automatic feeding and discharging device includes: roller conveyor (2), frame (3), stepper motor (4), worm (5), worm wheel (6), drum (7), front door (8), pulley (9), steel cable (10), support rod (11), rear door (12), and base (13).

2. The wood-fired kiln for root art pottery according to claim 1, characterized in that: The roller conveyor (2) is fixedly installed below the kiln body (1), with its conveying direction facing the inlet of the kiln body (1). The upper surface of the roller conveyor (2) is flush with the bottom surface of the inlet of the kiln body (1). The base (13) is installed on the roller conveyor (2) for carrying the root art ceramic blank.

3. The wood-fired kiln for root art pottery according to claim 2, characterized in that: The frame (3) is fixedly installed around the kiln body (1), with the front end of the frame (3) corresponding to the inlet of the kiln body (1) and the rear end corresponding to the outlet of the kiln body (1).

4. The wood-fired kiln for root art pottery according to claim 3, characterized in that: The two stepper motors (4) are fixedly installed at the front and rear ends of the frame (3), respectively, and the two worm gears (5) are fixedly installed on the output shafts of the two stepper motors (4) in the horizontal direction.

5. The wood-fired kiln for root art pottery according to claim 4, characterized in that: The two drums (7) are rotatably mounted on the front and rear ends of the frame (3) and on the same side as the stepper motor (4). The two worm gears (6) are fixedly mounted on the ends of the two drums (7) near the worm (5), and the two worms (5) mesh with the two worm gears (6) respectively for transmission.

6. The wood-fired kiln for root art pottery according to claim 5, characterized in that: Both of the support rods (11) are fixedly installed above the frame (3) in the horizontal direction, and four pulleys (9) are rotatably connected to the two ends of the two support rods (11) in pairs.

7. The wood-fired kiln for root art pottery according to claim 6, characterized in that: Vertical slide rails are fixedly installed at the front and rear ends of the frame (3), respectively. The front door (8) is slidably connected to the slide rail at the front end of the frame (3) and faces the inlet of the kiln body (1). The rear door (12) is slidably connected to the slide rail at the rear end of the frame (3) and faces the outlet of the kiln body (1).

8. The wood-fired kiln for root art pottery according to claim 7, characterized in that: The four steel cables (10) are respectively fitted onto the four pulleys (9). The two steel cables (10) at the front end of the frame (3) are symmetrically wound around the front drum (7) at one end, and the other end is fixedly installed on the top of the front door (8). The two steel cables (10) at the rear end of the frame (3) are symmetrically wound around the rear drum (7) at one end, and the other end is fixedly installed on the top of the rear door (12).

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