Sunflower straw biochar preparation device and method

Abstract

The invention discloses a sunflower straw biochar preparation device and method, and relates to the technical field of biochar preparation, the sunflower straw biochar preparation device comprises a mechanical arm and a thermal insulation bin, the mechanical arm is used for conveying a preparation cylinder into the thermal insulation bin or taking the preparation cylinder out of the thermal insulation bin, and a heater is arranged on the inner side wall of the thermal insulation bin; a rotating plate is rotationally arranged at the bottom of the thermal insulation bin, a plurality of rotating clamping sets distributed in a circumferential array mode are arranged on the rotating plate and used for being quickly connected with the preparation cylinder, and a side sliding plate is arranged on the side of the thermal insulation bin in a sliding mode; by rotating the rotating plate, the preparation cylinders can approach the heater one by one so as to realize conversion between heating and cooling; according to the preparation device, the columnar straw bodies can be subjected to regional treatment by arranging a plurality of preparation cylinders, and each region is further subdivided by a partition plate, so that each columnar straw body can be uniformly heated, the whole process is high in automation degree, and the preparation effect is good.

Description

Technical Field

[0001] The invention relates to the technical field of biochar preparation, and in particular to a device and method for preparing sunflower straw biochar. Background Art

[0002] Biochar is a porous solid particulate material that is made from carbon-rich biomass (such as wood, crop waste, animal manure, etc.) that undergoes high-temperature pyrolysis (generally at 400°C or above) in an anaerobic or anoxic environment to produce products such as biochar, syngas, and liquid tar. Different pyrolysis conditions will result in different biochar yields and properties.

[0003] The current sunflower straw biochar preparation device performs well in preparation effect, but there are still design defects, such as low efficiency of heating system and insufficient smoothness of material transmission system, which directly affect the preparation efficiency. In addition, small pores are a common problem in the preparation of sunflower straw biochar. Pore structure is one of the key factors in the performance of biochar, and small pores may weaken the adsorption and catalytic capacity of biochar. This situation may be caused by inaccurate temperature control during the preparation process, insufficient pyrolysis time or the structural characteristics of the raw material itself. Although high-temperature pyrolysis helps to form more porous structures, too high or too low temperature may lead to unsatisfactory pore structure.

[0004] Therefore, it is necessary to provide a sunflower straw biochar preparation device and method to solve the above problems. Summary of the invention

[0005] To solve the above problems, the present invention provides the following technical solutions: a sunflower straw biochar preparation device, comprising a mechanical arm and a temperature-insulating bin, wherein the mechanical arm is used to deliver a preparation barrel to the temperature-insulating bin, or to take out a preparation barrel from the temperature-insulating bin, a heater is provided on the inner side wall of the temperature-insulating bin, a rotating plate is rotatably provided at the bottom of the temperature-insulating bin, a plurality of rotating card groups distributed in a circular array are provided on the rotating plate, the rotating card group is used to quickly connect the preparation barrel, and a side sliding plate is slidably provided on the side of the temperature-insulating bin;

[0006] By rotating the rotating plate, the preparation cylinders can be brought closer to the heater one by one to achieve switching between heating and cooling;

[0007] A state adjustment component is arranged on the top of the temperature-isolating bin, and the state adjustment component is used to adjust the orientation of the preparation cylinder located on one side of the heater and to vibrate the preparation cylinder in a vertical direction.

[0008] Preferably, it further comprises a crusher and a drying and forming machine, wherein the crusher is used to crush the sunflower straws and send the crushed sunflower straws to the drying and forming machine, and the drying and forming machine is used to dry and preliminarily form the crushed sunflower straws to form columnar straw bodies, and then intermittently send them to the preparation cylinder;

[0009] A material discharge assembly is also provided on one side of the drying and forming machine, and the material discharge assembly is used for intermittently releasing partition plates into the preparation cylinder, and the columnar straw bodies in the preparation cylinder and the partition plates are alternately distributed in sequence.

[0010] Preferably, the state adjustment component includes a base plate, a driving rod, a driving seat and a slot, wherein the base plate is fixedly embedded in the top of the temperature insulation chamber, a turntable is rotatably arranged in the base plate, a vertical limit groove is provided on the inner wall of the turntable, the side of the driving rod has a limit strip corresponding to the limit groove, the driving rod is vertically limited and slidably arranged in the turntable, a slot is fixed at the bottom of the driving rod, the slot is used to clamp the preparation cylinder, the driving rod is also rotatably connected to the driving seat, and the driving seat is driven by a cylinder for vertical movement.

[0011] Preferably, the turntable is driven by a motor through a transmission mechanism;

[0012] A plurality of springs distributed in a circumferential array are fixed on the inner side wall of the clamping slot, and a guide clamp is connected to the spring.

[0013] Preferably, the rotating card group includes a rotating seat, a support member, and a second elastic member, wherein the rotating seat is rotatably arranged on the rotating plate, the upper portion of the rotating seat has a slot for mounting the preparation cylinder, the bottom of the rotating seat is provided with a support member, the support member is supported on the rotating plate, and a second elastic member is also connected between the support member and the rotating plate for providing reset for the rotating seat.

[0014] Preferably, a plurality of first elastic members are arranged in the notch of the swivel seat.

[0015] Preferably, it also includes a material unloading component, which includes a material unloading barrel, a material unloading plate and a material unloading cylinder, wherein a plurality of partition plates are pre-installed in the material unloading barrel, the partition plates are made of porous heat-conducting material, a material unloading plate is slidably provided at the bottom of the material unloading barrel, and the material unloading plate is driven by the material unloading cylinder.

[0016] Preferably, the side of the temperature-insulating chamber is also connected with an air inlet pipe and an air outlet pipe, wherein the air inlet pipe is also connected to an external gas tank, and the external gas tank is used to provide inert gas.

[0017] A method for preparing sunflower straw biochar comprises the following steps:

[0018] S1. Collect sunflower stalks and wash them to remove impurities and dust on the surface;

[0019] S2. The cleaned sunflower straw is sent to a crusher for crushing;

[0020] S3. The crushed sunflower straw is sent to a drying and molding machine, which is used to dry and preliminarily mold the crushed straw to form a columnar straw body, which is intermittently sent to the preparation cylinder;

[0021] S4. The material discharging assembly intermittently releases the partition plate into the preparation tube, and the columnar straw body and the partition plate in the preparation tube are alternately distributed;

[0022] S5. The robot arm sends the preparation tube containing the partition plate and the columnar straw body to the insulation bin;

[0023] S6. The heater is started to maintain the carbonization temperature between 400℃ and 700℃;

[0024] S7. The rotating plate rotates intermittently, the state adjustment component drives the preparation cylinder located below it to rotate slowly, and then the state adjustment component is reset;

[0025] S8. Repeat S7 until the carbonization time is reached, then open the side slide and use the robotic arm to take out the preparation tube.

[0026] Compared with the prior art, the present invention provides a device and method for preparing sunflower straw biochar, which has the following beneficial effects:

[0027] The present invention realizes the automatic feeding and taking out of the preparation tube by the mechanical arm, greatly reducing the tediousness of manual operation and improving the automation degree of the preparation process. The coordinated use of the mechanical arm and the rotating plate ensures the accurate positioning and efficient conversion of the preparation tube in the temperature-insulating bin, further improving the preparation efficiency.

[0028] The heater arranged on the inner wall of the temperature-isolating chamber in the present invention can heat the entire internal space, and the rotating design of the rotating plate enables the preparation cylinders to approach the heater one by one, thereby realizing flexible switching between heating and cooling. This temperature control strategy not only helps to accurately control the temperature during the pyrolysis process, but also can adjust the pyrolysis conditions according to actual needs to optimize the pore structure and performance of the biochar.

[0029] The present invention can process the columnar straw body in different areas by configuring a plurality of preparation cylinders, and each area is further subdivided by a partition plate, so that each columnar straw body can be heated evenly, thereby ensuring the carbonization effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1This is a schematic diagram of the main structure of a sunflower straw biochar preparation device;

[0031] Figure 2 It is a schematic diagram of the main structure of a crusher, a drying and molding machine and a feeding component in a sunflower straw biochar preparation device;

[0032] Figure 3 for Figure 1 The enlarged structural diagram at A in the middle;

[0033] Figure 4 It is a schematic diagram of the main structure of a state adjustment component in a sunflower straw biochar preparation device;

[0034] Figure 5 It is a three-dimensional structural schematic diagram of a state adjustment component in a sunflower straw biochar preparation device;

[0035] In the figure: 1. crusher; 2. drying and forming machine; 3. unloading assembly; 4. partition plate; 5. preparation barrel; 6. first elastic member; 7. mechanical arm; 8. temperature insulation chamber; 9. state adjustment assembly; 10. rotating plate; 11. first motor; 12. side slide plate; 13. heater; 14. carrier; 15. air inlet pipe; 16. air outlet pipe; 17. rotating seat; 18. support member; 19. second elastic member; 21. forming barrel; 22. auger; 23. feed port; 24. baffle; 25. first gear; 26. second gear; 27. second motor; 31. unloading barrel; 32. unloading plate; 33. unloading cylinder; 91. base plate; 92. drive rod; 93. drive seat; 94. cylinder; 95. turntable; 96. third motor; 97. slot; 98. guide chuck. DETAILED DESCRIPTION

[0036] The terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned description of the drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequential order. It should be understood that the terms used in this way can be interchangeable under appropriate circumstances, which is merely a way of distinguishing the objects of the same attributes when describing them in the embodiments of the present application. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions, so that the process, method, system, product or equipment comprising a series of units need not be limited to those units, but may include other units that are not clearly listed or inherent to these processes, methods, products or equipment.

[0037] Example: Please refer to Figure 1-Figure 5In an embodiment of the present invention, a sunflower straw biochar preparation device is provided, comprising a mechanical arm 7 and a heat-insulating bin 8, wherein the mechanical arm 7 is used to deliver the preparation tube 5 to the heat-insulating bin 8, or to take out the preparation tube 5 from the heat-insulating bin 8, a heater 13 is provided on the inner side wall of the heat-insulating bin 8, a rotating plate 10 is rotatably provided at the bottom of the heat-insulating bin 8, the rotating plate 10 is driven by a first motor 11, a plurality of rotating card groups distributed in a circular array are provided on the rotating plate 10, the rotating card groups are used to quickly connect the preparation tube 5, and a side slide plate 12 is slidably provided on the side of the heat-insulating bin 8;

[0038] By rotating the rotating plate 10, the preparation cylinders 5 can be brought closer to the heater 13 one by one to achieve the switching between heating and cooling;

[0039] A state adjustment component 9 is disposed on the top of the temperature-isolating chamber 8 , and the state adjustment component 9 is used to adjust the orientation of the preparation cylinder 5 located on one side of the heater 13 and to vibrate the preparation cylinder 5 in the vertical direction.

[0040] It needs to be explained that by rotating the rotating plate 10, the preparation tube 5 can be made to approach the heater 13 one by one to achieve the conversion between heating and cooling, which means that the heater 13 can heat the entire internal space of the insulation bin 8, and the position close to the heater 13 is the hottest. Therefore, by rotating the rotating plate 10, the preparation tube 5 can be made to approach the heater 13 one by one, so that the conversion between heating and cooling can be achieved, thereby increasing the porosity.

[0041] Furthermore, during the preparation of biochar, the physical and chemical properties of biochar can be affected by specific temperature control and heating-cooling cycles. For example, heating to 500 degrees, naturally cooling to 450 degrees, and then heating to 500 degrees, and repeated heating-cooling cycles can help optimize the internal structure of biochar. At high temperatures, organic matter in biomass undergoes pyrolysis and polycondensation reactions to form more stable aromatic structures. The cooling process can consolidate these structures, thereby enhancing the overall stability of biochar and increasing porosity.

[0042] In addition, the preparation device also includes a crusher 1 and a drying and forming machine 2, wherein the crusher 1 is used to crush the sunflower straws and send the crushed sunflower straws to the drying and forming machine 2, and the drying and forming machine 2 is used to dry and preliminarily form the crushed sunflower straws to form a columnar straw body, and then intermittently send it to the preparation cylinder 5;

[0043] A material discharge assembly 3 is also provided on one side of the drying and forming machine 2. The material discharge assembly 3 is used for intermittently releasing the partition plates 4 into the preparation cylinder 5. The columnar straw bodies in the preparation cylinder 5 and the partition plates 4 are alternately distributed in sequence.

[0044] Among them, the crusher 1 can efficiently crush the sunflower straw into particles of suitable size, providing uniform raw materials for the subsequent drying and molding processes. The drying and molding machine 2 is responsible for drying the crushed straw to a suitable moisture content and preliminarily molding it into a columnar straw body. This step not only removes excess moisture in the raw material, but also improves the density and stability of the raw material, laying a good foundation for the subsequent pyrolysis process. By integrating the three steps of crushing, drying and molding, continuous processing and efficient utilization of raw materials are achieved. This greatly shortens the preparation cycle and improves the production efficiency of biochar.

[0045] Specifically, the drying and molding machine 2 includes a molding cylinder 21, an auger 22, a baffle 24 and a second motor 27, wherein the molding cylinder 21 is rotatably provided with an auger 22, and the auger 22 is driven by the second motor 27. A feed port 23 is provided above the molding cylinder 21, and a baffle 24 is rotatably provided in the feed port 23. A first gear 25 is connected to the baffle 24, and the first gear 25 is meshed with the second gear 26. The second gear 26 is fixed on the auger 22. The baffle 24 is used to block the material from the crusher 1 to prevent excessive material from entering the drying and molding machine 2. The side wall of the molding cylinder 21 also has a heater.

[0046] In addition, in this embodiment, by configuring multiple preparation barrels 5, it is possible to simultaneously perform pyrolysis treatment on columnar straw bodies in multiple regions. This regional treatment method improves the preparation efficiency. The feeding assembly 3 intermittently releases the partition plate 4 into the preparation barrel 5, so that the columnar straw bodies and the partition plates 4 are alternately distributed in sequence. This design not only helps to maintain a uniform distribution of materials in the preparation barrel 5, but also prevents adhesion or accumulation of materials during the pyrolysis process, thereby ensuring that each columnar straw body can be evenly heated.

[0047] The partition plate 4 further subdivides each processing area, so that each columnar straw body can obtain a more uniform heat distribution during the pyrolysis process, which helps to improve the carbonization uniformity and product quality of the biochar.

[0048] In this embodiment, the state adjustment component 9 includes a base plate 91, a driving rod 92, a driving seat 93 and a card slot 97, wherein the base plate 91 is fixedly embedded in the top of the temperature insulation chamber 8, a turntable 95 is rotatably arranged in the base plate 91, and a vertical limit groove is opened on the inner wall of the turntable 95, and the side of the driving rod 92 has a limit strip corresponding to the limit groove, and the driving rod 92 is vertically limited and slidably arranged in the turntable 95, and a card slot 97 is fixed at the bottom of the driving rod 92, and the card slot 97 is used to clamp the preparation tube 5, and the driving rod 92 is also rotatably connected to the driving seat 93, and the driving seat 93 is driven by the cylinder 94 for vertical movement, so that when the cylinder 94 is extended and retracted, the card slot 97 moves vertically, and when the turntable 95 rotates, the card slot 97 rotates.

[0049] The rotating disk 95 is driven by a third motor 96 through a transmission mechanism, and the transmission mechanism is any one of a gear transmission mechanism, a pulley transmission mechanism, and a friction wheel transmission mechanism;

[0050] A plurality of springs distributed in a circular array are fixed on the inner wall of the slot 97 , and a guide clamp 98 is connected to the spring. The spring and the guide clamp 98 can improve the contact effect between the slot 97 and the preparation barrel 5 .

[0051] In this embodiment, the rotating card group includes a rotating seat 17, a support member 18, and a second elastic member 19, wherein the rotating seat 17 is rotatably arranged on the rotating plate 10, the upper part of the rotating seat 17 has a groove for installing the preparation cylinder 5, and the bottom of the rotating seat 17 is provided with a support member 18, and the support member 18 is supported on the rotating plate 10. A second elastic member 19 is also connected between the support member 18 and the rotating plate 10 for providing reset for the rotating seat 17.

[0052] In addition, a plurality of first elastic members 6 are provided in the groove of the rotating seat 17. When the state adjustment component 9 presses the preparation tube 5 downward, the first elastic member 6 can provide space for the preparation tube 5 to move downward, provide a certain buffer, and provide reset after buffering. The up and down displacement of the preparation tube 5 can vibrate the columnar straw body inside it, prevent it from sticking to the inner wall of the preparation tube 5, and improve the carbonization effect.

[0053] In this embodiment, the preparation device of the present invention also includes a feeding assembly 3, which includes a feeding barrel 31, a feeding plate 32 and a feeding cylinder 33, wherein a plurality of partition plates 4 are pre-installed in the feeding barrel 31, and the partition plates 4 are made of a porous heat-conductive material. A feeding plate 32 is slidably arranged at the bottom of the feeding barrel 31, and the feeding plate 32 is driven by the feeding cylinder 33. That is to say, the feeding plate 32 actually plays a blocking role, and the blocking state of the feeding plate 32 is also changed by the extension and contraction of the feeding cylinder 33, so that the partition plates 4 can move downward under the action of gravity and detach from the feeding barrel 31.

[0054] In this embodiment, the side of the temperature-isolating chamber 8 is also connected with an air inlet pipe 15 and an air outlet pipe 16, wherein the air inlet pipe 15 is also connected to an external gas tank, and the external gas tank is used to provide inert gas.

[0055] Inert gases (such as nitrogen, argon, etc.) have stable chemical properties and are not easy to react chemically with other substances. During the pyrolysis process, the introduction of inert gases can effectively prevent the oxidation reaction between biomass and oxygen in the air, thereby avoiding the biomass from being burned before pyrolysis, ensuring the smooth progress of the pyrolysis process.

[0056] The presence of inert gas helps to maintain a stable gas environment in the insulation chamber 8 and reduce heat loss during the pyrolysis process. The pyrolysis process carried out under the protection of inert gas can generate biochar with higher porosity and better adsorption performance.

[0057] In this embodiment, a method for preparing sunflower straw biochar is also provided, comprising the following steps:

[0058] S1. Collect sunflower stalks and wash them to remove impurities and dust on the surface;

[0059] S2. The cleaned sunflower straw is sent to the crusher 1 for crushing;

[0060] S3. The crushed sunflower straw is sent to the drying and molding machine 2, which is used to dry and preliminarily mold the crushed straw to form a columnar straw body, which is intermittently sent to the preparation cylinder 5;

[0061] S4. The material discharging assembly 3 intermittently releases the partition plate 4 into the preparation tube 5, and the columnar straw body in the preparation tube 5 and the partition plate 4 are alternately distributed in sequence. The presence of the partition plate 4 helps prevent the material from sticking or accumulating during the carbonization process, ensures uniform heating, and ensures uniform carbonization effect;

[0062] S5. The robot arm 7 sends the preparation tube 5 containing the partition plate 4 and the columnar straw body to the insulation bin 8;

[0063] S6. The heater 13 is started to maintain the carbonization temperature between 400°C and 700°C, which is conducive to the formation of biochar;

[0064] S7. The rotating plate 10 rotates intermittently, and the state adjustment component 9 drives the preparation cylinder 5 located below it to rotate slowly, and then the state adjustment component 9 is reset. By rotating the rotating plate 10, the preparation cylinders 5 can be approached to the heater 13 one by one, and the conversion between heating and cooling can be realized, so that the porosity can be increased;

[0065] S8. Repeat S7 until the carbonization time is reached, then open the side slide 12, use the robot arm 7 to take out the preparation tube 5, and send it to the carrier 14.

[0066] What is described above is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A sunflower straw biochar preparation device, comprising a mechanical arm (7) and a temperature-insulating chamber (8), wherein: The robot arm (7) is used to deliver the preparation tube (5) to the temperature-isolating bin (8) or to take out the preparation tube (5) from the temperature-isolating bin (8). The inner wall of the temperature-isolating bin (8) is provided with a heater (13). The robot arm (7) is used to deliver the preparation tube (5) to the temperature-isolating bin (8) or to take out the preparation tube (5 ... inner wall of the temperature-isolating bin (8) is provided with a heater (13). By rotating the rotating plate (10), the preparation cylinders (5) can be brought closer to the heater (13) one by one to achieve switching between heating and cooling; A state adjustment component (9) is provided on the top of the temperature-isolating chamber (8), and the state adjustment component (9) is used to adjust the orientation of the preparation cylinder (5) located on one side of the heater (13) and to vibrate the preparation cylinder (5) in the vertical direction.

2. A sunflower straw biochar preparation device according to claim 1, characterized in that: It also includes a crusher (1) and a drying and molding machine (2), wherein the crusher (1) is used to crush sunflower straws and send the crushed sunflower straws to the drying and molding machine (2), and the drying and molding machine (2) is used to dry and preliminarily mold the crushed sunflower straws to form columnar straw bodies, and then intermittently send them to the preparation cylinder (5); A material discharge assembly (3) is also provided on one side of the drying and forming machine (2), and the material discharge assembly (3) is used to intermittently release a partition plate (4) into the preparation cylinder (5), and the columnar straw bodies and the partition plates (4) in the preparation cylinder (5) are alternately distributed in sequence.

3. The sunflower straw biochar preparation device according to claim 1, characterized in that: The state adjustment component (9) comprises a base plate (91), a driving rod (92), a driving seat (93) and a slot (97), wherein the base plate (91) is fixedly embedded in the top of the temperature-isolating chamber (8), a turntable (95) is rotatably arranged in the base plate (91), an inner wall of the turntable (95) is provided with a vertical limit groove, a side portion of the driving rod (92) has a limit strip corresponding to the limit groove, the driving rod (92) is vertically limited and slidably arranged in the turntable (95), a slot (97) is fixed at the bottom of the driving rod (92), the slot (97) is used to clamp the preparation tube (5), the driving rod (92) is also rotatably connected to the driving seat (93), and the driving seat (93) is driven by a cylinder (94) to move vertically.

4. The sunflower straw biochar preparation device according to claim 3, characterized in that: The rotating disk (95) is driven by a third motor (96) through a transmission mechanism; A plurality of springs distributed in a circular array are fixed on the inner side wall of the clamping slot (97), and a guide clamp (98) is connected to the spring.

5. The sunflower straw biochar preparation device according to claim 1, characterized in that: The rotating card assembly comprises a rotating seat (17), a supporting member (18), and a second elastic member (19), wherein the rotating seat (17) is rotatably arranged on the rotating plate (10), the upper part of the rotating seat (17) has a notch for mounting the preparation cylinder (5), the bottom of the rotating seat (17) is provided with a supporting member (18), the supporting member (18) is supported on the rotating plate (10), and a second elastic member (19) is further connected between the supporting member (18) and the rotating plate (10) for providing reset for the rotating seat (17).

6. The sunflower straw biochar preparation device according to claim 5, characterized in that: A plurality of first elastic members (6) are arranged in the notch of the rotating seat (17).

7. The sunflower straw biochar preparation device according to claim 1, characterized in that: It also includes a material discharge component (3), the material discharge component (3) includes a material discharge barrel (31), a material discharge plate (32) and a material discharge cylinder (33), wherein a plurality of partition plates (4) are pre-installed in the material discharge barrel (31), the partition plates (4) are made of a porous heat-conducting material, a material discharge plate (32) is slidably arranged at the bottom of the material discharge barrel (31), and the material discharge plate (32) is driven by the material discharge cylinder (33).

8. The sunflower straw biochar preparation device according to claim 1, characterized in that: The side of the temperature-insulating chamber (8) is also connected to an air inlet pipe (15) and an air outlet pipe (16), wherein the air inlet pipe (15) is also connected to an external gas tank, and the external gas tank is used to provide inert gas.

9. A method for preparing sunflower straw biochar, which is prepared by using the sunflower straw biochar preparation device according to any one of claims 2 to 8, characterized in that: The steps include: S1. Collect sunflower stalks and wash them to remove impurities and dust on the surface; S2. The cleaned sunflower straw is sent to a crusher (1) for crushing; S3. The crushed sunflower straw is sent to a drying and molding machine (2), wherein the drying and molding machine (2) is used to dry and preliminarily mold the crushed straw to form a columnar straw body, and the columnar straw body is intermittently sent to a preparation cylinder (5); S4. The material discharge assembly (3) intermittently releases the partition plate (4) into the preparation cylinder (5), and the columnar straw bodies in the preparation cylinder (5) and the partition plates (4) are alternately distributed in sequence; S5. The robotic arm (7) delivers the preparation tube (5) containing the partition plate (4) and the columnar straw body to the insulation bin (8); S6. The heater (13) is started to maintain the carbonization temperature between 400°C and 700°C; S7. The rotating plate (10) rotates intermittently, the state adjustment component (9) drives the preparation cylinder (5) located below it to rotate slowly, and then the state adjustment component (9) is reset; S8. Repeat S7 until the carbonization time is reached, then open the side slide (12) and use the robotic arm (7) to take out the preparation cylinder (5).

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