A biomass fuel carbonization device

Abstract

The present invention relates to the technical field of biomass carbonization, and in particular to a biomass fuel carbonization device, including support legs, a working barrel, a fan-shaped feed port, a fan-shaped discharge port, a multi-layer buffer mechanism, a discharge mechanism, a turning mechanism, an annular mounting plate, a negative pressure extraction mechanism, and a cooling mechanism. The multi-layer buffer mechanism, the discharge mechanism, the turning mechanism, the negative pressure extraction mechanism, and the cooling mechanism used in the biomass fuel carbonization device provided by the present invention can cooperate to drive the biochar to be discharged step by step from top to bottom. During the period, the buffer plate will play a role of buffering and guiding the fallen biochar. During the biochar discharge process, it will undergo multiple oxygen-cutting and cooling operations in sequence to avoid the problem that the biochar is still in a high temperature state after being discharged and may continue to burn or oxidize when it contacts the air, and it is convenient for subsequent direct use, effectively improving the quality of the biochar.

Description

Technical Field

[0001] The invention relates to the technical field of biomass carbonization, and in particular to a biomass fuel carbonization device. Background Art

[0002] Biomass fuel carbonization is a process that converts biomass materials into high energy density carbonized materials through a pyrolysis process in a high temperature and low oxygen environment. This carbonized material can be used as a fuel, soil conditioner or industrial raw material. In the biomass fuel carbonization device, oxygen depletion, cooling and material discharge after combustion are key process steps that affect the overall efficiency of the equipment and the quality of the final product.

[0003] The existing biomass fuel carbonization device unloading method needs to be optimized to avoid the problem of biochar being directly accumulated and discharged, which may cause it to fall and break. In addition, oxygen cannot be effectively isolated during the carbonization process, causing the biochar to continue to burn or oxidize at high temperatures. In addition, after the carbonization process, the biochar is not cooled quickly enough and may burn or oxidize again when exposed to air. This cooling efficiency directly affects the quality of the product and subsequent processing. In addition, the cooled biochar needs to be removed from the carbonization furnace and prepared for subsequent processing or use. Summary of the invention

[0004] Technical problem to be solved: The present invention provides a biomass fuel carbonization device that can solve the above-mentioned problems.

[0005] Technical solution: In order to achieve the above-mentioned purpose, the present invention adopts the following technical solution: a biomass fuel carbonization device, comprising a plurality of supporting legs, a working barrel with a circular opening at the bottom is commonly installed on the upper ends of the plurality of supporting legs, a fan-shaped feeding port is opened on the upper end of the working barrel, a fan-shaped unloading port is opened on the lower end of the working barrel, a multi-layer buffer mechanism is arranged on the working barrel, a unloading mechanism is arranged on the working barrel, a turning mechanism is arranged on the unloading mechanism, an annular mounting plate is fixedly sleeved on the outer wall of the lower end of the working barrel, a negative pressure extraction mechanism is commonly arranged on the working barrel and the annular mounting plate, and a cooling mechanism is commonly arranged on the working barrel and the annular mounting plate.

[0006] The material unloading mechanism comprises a support barrel rotatably mounted on the inner wall of the circular opening at the bottom end of the working barrel, the upper end of the support barrel is rotatably connected to the inner wall of the upper end of the working barrel, and a material unloading portion is provided on the support barrel. The multi-layer buffer mechanism comprises a plurality of annular support plates evenly mounted on the inner wall of the working barrel, the plurality of annular support plates are rotatably sleeved on the support barrel, and a buffer portion is commonly provided on the plurality of annular support plates. The material turning mechanism comprises a rotating shaft mounted on the inner wall of the upper end of the working barrel, the lower end of the rotating shaft is rotatably connected to the inner wall of the bottom end of the support barrel, and a material turning portion is commonly provided on the rotating shaft and the support barrel.

[0007] Preferably, the buffer portion includes a plurality of fan-shaped feed openings respectively opened on the upper ends of the annular support plate, the plurality of fan-shaped feed openings are spirally arranged around the axis of the annular support plate, a buffer plate is installed on the inner wall of one side of the fan-shaped feed opening, and a buffer plate is also installed on one side of the plurality of fan-shaped feed openings.

[0008] Preferably, the unloading part includes a mounting plate installed at the lower end of the working barrel, on which a No. 1 motor is installed, and the output shaft of the No. 1 motor is fixedly connected to the supporting barrel, and unloading groups are provided on the outer wall of the supporting barrel corresponding to the working areas separated by multiple annular supporting plates.

[0009] Preferably, the material turning part includes active bevel gears fixedly mounted on the outer wall of the rotating shaft corresponding to the working areas separated by the multiple annular supporting plates, and material turning groups are arranged at positions corresponding to the multiple active bevel gears on the supporting barrel.

[0010] Preferably, the negative pressure extraction mechanism includes a plurality of ventilation holes 1 evenly opened from top to bottom on the outer wall of the working barrel, filter nets are installed on the inner walls of the plurality of ventilation holes 1, delivery pipes 1 are installed at positions corresponding to the plurality of ventilation holes 1 on the outer wall of the working barrel, an air pump is installed through the annular mounting plate, the air pump is connected to a delivery pipe 2, and the ends of the plurality of delivery pipes 1 away from the working barrel are connected to the delivery pipe 2.

[0011] Preferably, the cooling mechanism includes a plurality of air vents 2 evenly opened from bottom to top on the outer wall of the working barrel, a filter screen is installed on the inner wall of the plurality of air vents 2, a cooling pipe 1 is installed at positions corresponding to the plurality of air vents 2 on the outer wall of the working barrel, an air cooling pump is installed through the annular mounting plate, the air cooling pump is connected to the cooling pipe 2, and the ends of the plurality of cooling pipes 1 away from the working barrel are connected to the cooling pipe 2.

[0012] Preferably, the unloading group includes a plurality of push plates installed on the outer wall of the support barrel and evenly distributed in a circle, a rectangular installation groove is opened on the upper end of the push plate, and a trapezoidal sealing plate is slidably connected in the rectangular installation groove through a plurality of compression springs. The difference lies in that the lower end surfaces of the plurality of push plates on the lowermost side are movably fitted on the inner wall of the bottom end of the support barrel, and the lower end surfaces of the remaining plurality of push plates are movably fitted on the corresponding annular support plates, and the upper end surfaces of the plurality of trapezoidal sealing plates on the uppermost side are movably fitted on the inner wall of the upper end of the support barrel, and the upper end surfaces of the remaining plurality of trapezoidal sealing plates are movably fitted on the corresponding annular support plates.

[0013] Preferably, the material turning group includes a plurality of support rods rotatably installed on the outer wall of the support barrel, the plurality of support rods are evenly distributed in a circle, and a passive bevel gear is installed at one end of the support rod located inside the support barrel, the passive bevel gear is meshed with the active bevel gear, and a plurality of semi-circular head shifting rods are evenly installed on the part of the support rod located outside the support barrel.

[0014] Preferably, a fan-shaped baffle plate is installed at a position corresponding to the fan-shaped feed port at the upper end of the working barrel, and a fan-shaped baffle plate is also installed at a position corresponding to the fan-shaped discharge port at the lower end of the working barrel.

[0015] Beneficial effects: 1. The multi-layer buffer mechanism adopted by the biomass fuel carbonization device provided by the present invention adopts multiple annular support plates to divide the working barrel into multiple working areas. The buffer plate on the fan-shaped feed port will buffer the fallen biochar, and can prevent the biochar from falling directly from the fan-shaped feed port to the next layer in the opposite direction of the feeding direction, but make it fall along the buffer plate to the side with the same feeding direction.

[0016] 2. The multi-layer buffer mechanism, feeding mechanism and negative pressure extraction mechanism used in the biomass fuel carbonization device provided by the present invention cooperate with each other, and use multiple pushing plates to divide each working area into multiple fan-shaped pushing areas, and can drive the biochar to be fed step by step from top to bottom. In the process of feeding the biochar, it will undergo multiple oxygen-cutting operations to effectively isolate oxygen, thereby avoiding the problem of continued combustion or oxidation of the biochar in a high-temperature state after discharge.

[0017] 3. The multi-layer buffer mechanism, feeding mechanism, turning mechanism, negative pressure extraction mechanism and cooling mechanism used in the biomass fuel carbonization device provided by the present invention can drive the biochar to be fed step by step from top to bottom. During the feeding process, the buffer plate will play a role in buffering and guiding the fallen biochar. In the process of biochar feeding, it will undergo multiple oxygen cut-off and cooling operations in sequence to avoid the problem of continued combustion or oxidation of the biochar in a high temperature state after discharge and when it contacts the air, which is convenient for subsequent processing or use and effectively improves the quality of the biochar. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0019] Figure 1 It is a first three-dimensional structural schematic diagram of the present invention.

[0020] Figure 2 It is a second three-dimensional structural schematic diagram of the present invention.

[0021] Figure 3 It is a partial cutaway three-dimensional structural schematic diagram of the present invention.

[0022] Figure 4 The present invention Figure 3 Enlarged view of the X in the middle.

[0023] Figure 5 It is a schematic diagram of the first partial cross-section stereoscopic structure of the multi-layer buffer mechanism and the blanking mechanism in the present invention.

[0024] Figure 6 It is a second partial cross-sectional three-dimensional structural schematic diagram of the multi-layer buffer mechanism and the blanking mechanism in the present invention.

[0025] Figure 7 It is a schematic diagram of the first partial cross-section stereoscopic structure of the material unloading mechanism and the material turning mechanism in the present invention.

[0026] Figure 8 It is a second partial cross-sectional three-dimensional structural schematic diagram of the material unloading mechanism and the material turning mechanism in the present invention.

[0027] Fig. 9 It is a partial cross-sectional three-dimensional structural schematic diagram of the annular supporting plate and the material turning mechanism in the present invention.

[0028] Fig.10 It is a half-section three-dimensional structural schematic diagram of the vent hole 1 and the vent hole 2 in the present invention.

[0029] Fig.11 It is a schematic diagram of the three-dimensional structure of the support barrel and the rotating shaft in the present invention.

[0030] In the figure: 1. Support legs; 2. Working barrel; 3. Fan-shaped feeding port; 4. Fan-shaped unloading port; 5. Multi-layer buffer mechanism; 51. Annular support plate; 52. Buffer part; 521. Fan-shaped feeding port; 522. Buffer plate; 6. Unloading mechanism; 61. Support barrel; 62. Unloading part; 621. Extension plate; 622. No. 1 motor; 623. Pushing plate; 624. Rectangular mounting groove; 625. Trapezoidal sealing plate; 7. Turning mechanism; 71. Rotation Shaft; 72, turning part; 721, active bevel gear; 722, support rod; 723, passive bevel gear; 724, semicircular head lever; 8, negative pressure extraction mechanism; 81, vent hole 1; 82, filter screen; 83, delivery pipe 1; 84, vacuum pump; 85, delivery pipe 2; 9, cooling mechanism; 91, vent hole 2; 92, cooling pipe 1; 93, air cooling pump; 94, cooling pipe 2; 10, annular mounting plate; 11, fan-shaped baffle plate. DETAILED DESCRIPTION

[0031] The embodiments of the present invention are described in detail below with reference to the accompanying drawings, but the present invention can be implemented in many different ways as defined and covered by the claims.

[0032] See also Figure 1 , Figure 3 , Figure 5 and Figure 6A biomass fuel carbonization device comprises a plurality of supporting legs 1, a working barrel 2 with a circular opening at the bottom is commonly installed on the upper ends of the plurality of supporting legs 1, a fan-shaped feeding port 3 is opened on the upper end of the working barrel 2, a fan-shaped unloading port 4 is opened on the lower end of the working barrel 2, a multi-layer buffer mechanism 5 is arranged on the working barrel 2, a unloading mechanism 6 is arranged on the working barrel 2, a turning mechanism 7 is arranged on the unloading mechanism 6, an annular mounting plate 10 is fixedly sleeved on the outer wall of the lower end of the working barrel 2, a negative pressure extraction mechanism 8 is commonly arranged on the working barrel 2 and the annular mounting plate 10, and a cooling mechanism 9 is commonly arranged on the working barrel 2 and the annular mounting plate 10.

[0033] See also Figure 3 and Figure 5-Figure 7 The material unloading mechanism 6 comprises a support barrel 61 rotatably mounted on the inner wall of the circular opening at the bottom end of the working barrel 2, the upper end of the support barrel 61 is rotatably connected to the inner wall of the upper end of the working barrel 2, and a material unloading portion 62 is provided on the support barrel 61. The multi-layer buffer mechanism 5 comprises a plurality of annular support plates 51 evenly mounted on the inner wall of the working barrel 2, the plurality of annular support plates 51 are rotatably sleeved on the support barrel 61, and a buffer portion 52 is commonly provided on the plurality of annular support plates 51. The material turning mechanism 7 comprises a rotating shaft 71 mounted on the inner wall of the upper end of the working barrel 2, the lower end of the rotating shaft 71 is rotatably connected to the inner wall of the bottom end of the support barrel 61, and a material turning portion 72 is commonly provided on the rotating shaft 71 and the support barrel 61.

[0034] See also Figure 1 and Figure 2 A fan-shaped baffle plate 11 is installed at the position of the upper end of the working barrel 2 corresponding to the fan-shaped feed port 3, and a fan-shaped baffle plate 11 is also installed at the position of the lower end of the working barrel 2 corresponding to the fan-shaped discharge port 4.

[0035] See also Figure 3 , Figure 5 , Figure 6 and Fig. 9 The buffer portion 52 includes a plurality of fan-shaped material passage openings 521 respectively opened at the upper ends of the annular support plates 51. The plurality of fan-shaped material passage openings 521 are spirally arranged around the axis of the annular support plate 51. A buffer plate 522 is installed on the inner wall of one side of the fan-shaped feed port 3, and a buffer plate 522 is also installed on one side of the plurality of fan-shaped material passage openings 521.

[0036] First, the external biomass combustion furnace discharges the burned biochar into the fan-shaped feed port 3, and the multi-layer buffer mechanism 5 uses multiple annular support plates 51 to divide the working barrel 2 into multiple working areas. The buffer plate 522 on the fan-shaped feed port 3 will buffer the fallen biochar and prevent the biochar from falling directly from the fan-shaped feed port 521 to the next layer in the opposite direction of the feeding direction, but instead makes it fall along the buffer plate 522 to the side with the same feeding direction.

[0037] See also Figure 2The unloading part 62 includes an extension plate 621 installed at the lower end of the working barrel 2, and a No. 1 motor 622 is installed on the extension plate 621. The output shaft of the No. 1 motor 622 is fixedly connected to the supporting barrel 61, and unloading groups are provided on the outer wall of the supporting barrel 61 corresponding to the working areas separated by multiple annular supporting plates 51.

[0038] See also Figure 4-Figure 6 The unloading group includes a plurality of push plates 623 installed on the outer wall of the support barrel 61 and evenly distributed in a circle. A rectangular mounting groove 624 is opened at the upper end of the push plate 623. A trapezoidal sealing plate 625 is slidably connected in the rectangular mounting groove 624 through a plurality of compression springs. The difference lies in that the lower end surfaces of the plurality of push plates 623 on the lowermost side are movably fitted on the inner wall of the bottom end of the support barrel 61, and the lower end surfaces of the remaining plurality of push plates 623 are movably fitted on the corresponding annular supporting plates 51, and the upper end surfaces of the plurality of trapezoidal sealing plates 625 on the uppermost side are movably fitted on the inner wall of the upper end of the support barrel 61, and the upper end surfaces of the remaining plurality of trapezoidal sealing plates 625 are movably fitted on the corresponding annular supporting plates 51.

[0039] See also Figure 3 and Fig.10 The negative pressure extraction mechanism 8 includes a plurality of vent holes 81 uniformly opened from top to bottom on the outer wall of the working barrel 2, and filter screens 82 are installed on the inner walls of the plurality of vent holes 81. Delivery pipes 83 are installed at positions corresponding to the plurality of vent holes 81 on the outer wall of the working barrel 2. An air pump 84 is installed through the annular mounting plate 10, and the air pump 84 is connected to a delivery pipe 85. The ends of the plurality of delivery pipes 83 away from the working barrel 2 are connected to the delivery pipe 85.

[0040] When the biochar falls into the working barrel 2, it should be noted that the multiple pushing plates 623 divide each working area into multiple fan-shaped pushing areas, and under the action of the compression spring, the multiple trapezoidal sealing plates 625 initially protrude from the corresponding rectangular mounting grooves 624, and the support barrel 61 is controlled to rotate by the No. 1 motor 622, and the support barrel 61 will drive the multiple pushing plates 623 to rotate, and the multiple pushing plates 623 will drive the corresponding trapezoidal sealing plates 625 to rotate, thereby achieving the effect of pushing the biochar to follow the rotation. When the upper layer of biochar follows and moves to the fan-shaped feeding port 521 of the lower layer, the biochar will fall from the fan-shaped feeding port 521 of the lower layer into the fan-shaped pushing area of ​​the next layer, and will continue to be pushed by the corresponding pushing plate 623, and this process is repeated. The operation is continued until it is discharged from the fan-shaped discharge port 4. While the No. 1 motor 622 is working, the vacuum pump 84 is started, and the air in the fan-shaped pushing area that rotates to the front of the multiple vents 81 is extracted from the multiple vents 81 through the conveying pipe 2 85 and the multiple conveying pipes 83, thereby realizing the oxygen-cutting work in the multiple fan-shaped pushing areas. The multi-layer buffer mechanism 5, the discharge mechanism 6 and the negative pressure extraction mechanism 8 cooperate with each other, and multiple pushing plates 623 are used to divide each working area into multiple fan-shaped pushing areas, and the biochar can be driven to discharge step by step from top to bottom. In the process of discharging biochar, oxygen will be effectively isolated after multiple oxygen-cutting works, so as to avoid the problem of continued combustion or oxidation of biochar in a high temperature state after discharge.

[0041] See also Figure 7 , Figure 8 and Fig.11 The material turning part 72 includes active bevel gears 721 fixedly mounted on the outer wall of the rotating shaft 71 corresponding to the working areas separated by the multiple annular supporting plates 51, and material turning groups are arranged at the positions corresponding to the multiple active bevel gears 721 on the supporting barrel 61.

[0042] See also Figure 4 , Figure 5 , Figure 7 and Figure 8 The material turning group includes a plurality of support rods 722 rotatably installed on the outer wall of the support barrel 61, the plurality of support rods 722 are evenly distributed on the circumference, and a passive bevel gear 723 is installed on one end of the support rod 722 located inside the support barrel 61, the passive bevel gear 723 is meshed with the active bevel gear 721, and a plurality of semicircular head shifting rods 724 are evenly installed on the part of the support rod 722 located outside the support barrel 61.

[0043] See also Figure 3 , Figure 4 and Fig.10The cooling mechanism 9 includes a plurality of air vents 91 evenly arranged from bottom to top on the outer wall of the working barrel 2, a filter screen 82 is installed on the inner wall of the plurality of air vents 91, a cooling pipe 92 is installed at the position corresponding to the plurality of air vents 91 on the outer wall of the working barrel 2, an air cooling pump 93 is installed through the annular mounting plate 10, the air cooling pump 93 is connected to a cooling pipe 94, and the ends of the plurality of cooling pipes 92 away from the working barrel 2 are connected to the cooling pipe 94.

[0044] When the No. 1 motor 622 controls the support barrel 61 to rotate, the support barrel 61 will drive the multiple support rods 722 to rotate synchronously, and the multiple support rods 722 will drive the corresponding passive bevel gears 723 to rotate synchronously. The multiple passive bevel gears 723 are respectively transmitted with the corresponding active bevel gears 721, which will drive the multiple support rods 722 to rotate while following the rotation of the support barrel 61. At this time, the multiple support rods 722 will drive the corresponding multiple semi-circular head levers 724 to rotate synchronously, thereby turning the biochar in the corresponding fan-shaped pushing area. When the biochar in the upper multi-layer working area is transported to the lower working area after oxygen deprivation, the air cooling pump 93 is started, and the cold air is transported into the fan-shaped pushing area in front of the plurality of air holes 2 91 through the cooling pipe 2 94 and the plurality of cooling pipes 1 92, thereby realizing the cooling of the biochar in the plurality of fan-shaped pushing areas. When the biochar after cooling is transported to the working area of ​​the lowest layer, the biochar in the plurality of fan-shaped pushing areas will be discharged from the fan-shaped discharge port 4 in turn, and received and processed uniformly by the external material receiving equipment.

[0045] By repeating the above operation, the oxygen-free cooling work can be repeatedly performed on the burned biochar. The cooperation of the multi-layer buffer mechanism 5, the unloading mechanism 6, the turning mechanism 7, the negative pressure extraction mechanism 8 and the cooling mechanism 9 can drive the biochar to be unloaded step by step from top to bottom. During this period, the buffer plate 522 will play a role in buffering and guiding the fallen biochar. During the unloading process of the biochar, it will undergo multiple oxygen-free and cooling operations in sequence to avoid the problem of continued combustion or oxidation of the biochar when it is still in a high temperature state after being discharged and when it contacts the air, and it is convenient for subsequent processing or use, thereby effectively improving the quality of the biochar.

[0046] In the description of the embodiments of the present invention, it should be noted that the terms: "longitudinal", "lateral", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "outer", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the embodiments of the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as a limitation on the embodiments of the present invention. In addition, in the description of the present invention, unless otherwise specified, "multiple", "multiple roots", and "multiple groups" mean two or more.

[0047] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "connect", "install", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0048] The embodiments of this specific implementation method are all preferred embodiments of the present invention, and are not intended to limit the protection scope of the present invention. Therefore, all equivalent changes made according to the structure, shape, and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A biomass fuel carbonization device, comprising a plurality of support legs, a working barrel with a circular opening at the bottom of which is mounted on the upper ends of the plurality of support legs, characterized in that: The upper end of the working barrel is provided with a fan-shaped feeding port, the lower end of the working barrel is provided with a fan-shaped unloading port, the working barrel is provided with a multi-layer buffer mechanism, the working barrel is provided with a unloading mechanism, the unloading mechanism is provided with a turning mechanism, an annular mounting plate is fixedly sleeved on the outer wall of the lower end of the working barrel, the working barrel and the annular mounting plate are jointly provided with a negative pressure extraction mechanism, and the working barrel and the annular mounting plate are jointly provided with a cooling mechanism; The unloading mechanism comprises a support barrel rotatably mounted on the inner wall of the circular opening at the bottom end of the working barrel, the upper end of the support barrel is rotatably connected to the inner wall of the upper end of the working barrel, and a unloading part is arranged on the support barrel; The multi-layer buffer mechanism comprises a plurality of annular support plates evenly mounted on the inner wall of the working barrel, the plurality of annular support plates are rotatably sleeved on the supporting barrel, and a buffer portion is commonly arranged on the plurality of annular support plates; The material turning mechanism comprises a rotating shaft installed on the inner wall of the upper end of the working barrel, the lower end of the rotating shaft is rotatably connected to the inner wall of the bottom end of the supporting barrel, and the rotating shaft and the supporting barrel are jointly provided with a material turning part; The unloading part includes an extension plate installed at the lower end of the working barrel, a No. 1 motor is installed on the extension plate, the output shaft of the No. 1 motor is fixedly connected to the supporting barrel, and unloading groups are arranged on the outer wall of the supporting barrel corresponding to the working areas separated by the multiple annular supporting plates; The unloading group includes a plurality of push plates installed on the outer wall of the support barrel and evenly distributed in a circle, a rectangular installation groove is opened on the upper end of the push plate, a trapezoidal sealing plate is slidably connected in the rectangular installation groove through a plurality of compression springs, the lower end surfaces of the lowest plurality of push plates are movably fitted on the inner wall of the bottom end of the support barrel, the lower end surfaces of the remaining plurality of push plates are movably fitted on the corresponding annular supporting plates, and the upper end surfaces of the highest plurality of trapezoidal sealing plates are movably fitted on the inner wall of the upper end of the support barrel, and the upper end surfaces of the remaining plurality of trapezoidal sealing plates are movably fitted on the corresponding annular supporting plates.

2. A biomass fuel carbonization device according to claim 1, characterized in that: The buffer portion includes a plurality of fan-shaped feed openings respectively opened on the upper ends of the annular support plate, the plurality of fan-shaped feed openings are spirally arranged around the axis of the annular support plate, a buffer plate is installed on the inner wall of one side of the fan-shaped feed opening, and a buffer plate is also installed on one side of the plurality of fan-shaped feed openings.

3. The biomass fuel carbonization device according to claim 1, characterized in that: The material turning part comprises active bevel gears which are fixedly mounted on the outer wall of the rotating shaft and correspond to the working areas separated by the plurality of annular supporting plates, and material turning groups are arranged at the positions corresponding to the plurality of active bevel gears on the supporting barrel.

4. The biomass fuel carbonization device according to claim 1, characterized in that: The negative pressure extraction mechanism includes a plurality of ventilation holes 1 evenly opened from top to bottom on the outer wall of the working barrel, a filter screen is installed on the inner wall of the plurality of ventilation holes 1, a delivery pipe 1 is installed at the position corresponding to the plurality of ventilation holes 1 on the outer wall of the working barrel, an air pump is installed through the annular mounting plate, the air pump is connected to a delivery pipe 2, and the ends of the plurality of delivery pipes 1 away from the working barrel are connected to the delivery pipe 2.

5. The biomass fuel carbonization device according to claim 1, characterized in that: The cooling mechanism includes a plurality of air vents 2 evenly opened from bottom to top on the outer wall of the working barrel, a filter screen is installed on the inner wall of the plurality of air vents 2, a cooling pipe 1 is installed at the position corresponding to the plurality of air vents 2 on the outer wall of the working barrel, an air cooling pump is installed through the annular mounting plate, the air cooling pump is connected to the cooling pipe 2, and the ends of the plurality of cooling pipes 1 away from the working barrel are connected to the cooling pipe 2.

6. The biomass fuel carbonization device according to claim 3, characterized in that: The material turning group includes a plurality of support rods rotatably installed on the outer wall of the support barrel, the plurality of support rods are evenly distributed in a circle, and a passive bevel gear is installed at one end of the support rod located inside the support barrel, the passive bevel gear is meshed with the active bevel gear, and a plurality of semicircular head shifting rods are evenly installed on the part of the support rod located outside the support barrel.

7. The biomass fuel carbonization device according to claim 5, characterized in that: A fan-shaped baffle plate is installed at a position corresponding to the fan-shaped feed opening on the upper end of the working barrel, and a fan-shaped baffle plate is also installed at a position corresponding to the fan-shaped discharge opening on the lower end of the working barrel.

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