Continuous processing unit for pyrolysis biomass

Abstract

This utility model discloses a continuous processing device for pyrolysis biomass, including a support frame; it also includes a pyrolysis furnace mounted on the support frame, a biochar collection box mounted on the pyrolysis furnace, a first motor mounted on the pyrolysis furnace, equidistant spiral blades mounted on the output end of the first motor, a discharge pipe mounted on the pyrolysis furnace, a feeding box mounted on the pyrolysis furnace, a storage tank mounted on the feeding box, a feeding assembly mounted on the support frame, an air-tight feeding assembly mounted on the feeding box, and an anti-clogging assembly mounted on the storage tank. This utility model can achieve continuous and high-precision processing of biomass, with extrusion degassing during feeding, quantitative air-tightening during feeding, and uniform pushing during pyrolysis, significantly improving pyrolysis efficiency and biochar quality uniformity; the anti-clogging assembly prevents storage tank blockage, the air-tight structure prevents gas leakage inside the furnace, and the multi-structure collaboration solves operational pain points, reduces the probability of failure, and enhances the stability and practicality of the device.

Description

Technical Field

[0001] This utility model relates to the field of pyrolysis biomass technology, and in particular to a continuous processing device for pyrolysis biomass. Background Technology

[0002] As green and environmentally friendly concepts gain widespread acceptance, the environmental problems caused by the excessive use of fossil fuels have attracted much attention, while industrial society cannot develop without energy consumption. Biomass resources, as the only renewable carbon source, have advantages such as abundant reserves, easy availability, and diverse types. Their energy utilization is key to solving the problem of green and rapid development in industrial society. Biomass pyrolysis to produce biochar, as an important way of utilizing biomass for energy, has received widespread attention.

[0003] Existing pyrolysis biomass processing equipment utilizes pyrolysis technology, which is one of the core technologies for biomass conversion and utilization. By heating and decomposing biomass in an anaerobic or low-oxygen environment, a variety of high-value products such as biochar, bio-oil, and syngas can be generated.

[0004] However, in the biomass feedstock transportation process, common materials such as straw and sawdust are highly susceptible to fluctuations in humidity and uneven particle size due to their inherent characteristics. When humidity changes significantly or particle size differences are excessive, bridging and blockages can occur during feeding. This forces a halt to the feeding process, severely impacting the overall operation of the unit. Furthermore, the lack of an effective sealing structure between the feed inlet and the pyrolysis reactor allows outside air to easily penetrate. Since pyrolysis requires a strictly anaerobic environment, the entry of outside air disrupts this process, interfering with the pyrolysis reaction and reducing product quality and yield. In addition, biomass feedstocks themselves contain a certain amount of oxygen, which also affects the reaction during pyrolysis, further complicating the stable operation of the unit. Utility Model Content

[0005] In order to overcome the shortcomings of the existing technology, the purpose of this utility model is to provide a continuous processing device for pyrolysis biomass, which can realize continuous and high-precision processing of biomass, degassing during feeding, quantitative gas sealing during unloading, and uniform pushing during pyrolysis, thereby greatly improving the pyrolysis efficiency and the uniformity of biochar quality.

[0006] The objective of this utility model is achieved through the following technical solution: A continuous processing device for pyrolysis biomass includes a support frame; it also includes a pyrolysis furnace mounted on the support frame, a biochar collection box mounted on the pyrolysis furnace, a first motor mounted on the pyrolysis furnace, equidistant spiral blades mounted on the output end of the first motor, a discharge pipe mounted on the pyrolysis furnace, a feeding box mounted on the pyrolysis furnace, a storage tank mounted on the feeding box, a feeding assembly mounted on the support frame, an airtight feeding assembly mounted on the feeding box, and an anti-clogging assembly mounted on the storage tank. The discharge pipe is located inside the biochar collection box, and the output end of the feeding assembly is located above the storage tank. The anti-clogging component includes a limiting ring installed on the outside of the storage tank, a toothed ring rotatably connected to the inside of the limiting ring, a lever fixedly connected to the toothed ring, and a drive assembly installed on the storage tank and the limiting ring. The lever is located inside the storage tank, and the drive assembly is used to drive the toothed ring to rotate.

[0007] In one optional embodiment, the drive assembly includes a second motor mounted on the storage tank and a gear mounted on the output end of the second motor. The gear is located inside a limiting ring and meshes with the gear ring. The second motor is used to drive the gear to rotate.

[0008] In one optional embodiment, the air-tight feeding assembly includes an equal-volume feeding plate rotatably connected inside the feeding box, a third motor installed on one side of the feeding box, and a transmission assembly installed on the output end of the third motor and the equal-volume feeding plate. The third motor drives the equal-volume feeding plate to rotate through the transmission assembly.

[0009] In one optional embodiment, the transmission assembly includes a large sprocket fixedly connected to the output end of a third motor, a small sprocket fixedly connected to an equal-volume unloading plate, and a chain that drives the large sprocket and the small sprocket.

[0010] In one optional embodiment, the equal-quantity feeding plate is a fixed plate that extends evenly in all directions and is distributed at a specific angle, with the fixed plate abutting against the inner wall of the feeding box.

[0011] In one optional embodiment, the feeding assembly includes a conveying cylinder mounted on a support frame, a conveying component mounted on the conveying cylinder, a feed hopper mounted on the conveying cylinder, and a discharge pipe mounted on the conveying cylinder, wherein the conveying component is used to drive the biomass to move within the conveying cylinder.

[0012] In one optional embodiment, the conveying component includes a fourth motor mounted on the conveying cylinder and variable pitch helical blades mounted on the output end of the fourth motor, wherein the fourth motor is used to drive the variable pitch helical blades to rotate.

[0013] In one alternative embodiment, the blade spacing of the variable-pitch helical blades gradually decreases from one end of the feed hopper to the other end of the discharge pipe.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows: 1. This utility model can realize continuous and high-precision processing of biomass, with extrusion degassing during feeding, quantitative gas sealing during unloading, and uniform pushing during pyrolysis, which greatly improves the thermal pyrolysis efficiency and the uniformity of biochar quality. 2. This utility model can prevent the storage tank from getting clogged by the anti-clogging component, prevent gas leakage in the furnace by the air-sealing structure, and solve the pain points of operation through the cooperation of multiple structures, reduce the probability of failure, and enhance the stability and practicality of the device. Attached Figure Description

[0015] Figure 1 A three-dimensional structural diagram of a continuous processing unit for pyrolysis biomass; Figure 2 This is a cross-sectional schematic diagram of a continuous processing unit for pyrolysis biomass. Figure 3 A cross-sectional schematic diagram of the feeding assembly of a continuous processing unit for pyrolysis biomass. Figure 4 A cross-sectional schematic diagram of the closed-circuit feeding assembly of a continuous processing unit for pyrolysis biomass. Figure 5 Another three-dimensional structural diagram of the closed-air feeding component of a continuous processing unit for pyrolysis biomass; Figure 6 This is a cross-sectional schematic diagram of the anti-clogging component of a continuous processing unit for pyrolysis biomass.

[0016] Explanation of reference numerals in the attached drawings: 1. Support frame; 2. Pyrolysis furnace; 3. Biochar collection box; 4. First motor; 5. Equidistant spiral blades; 6. Discharge pipe; 7. Feed box; 8. Storage tank; 901. Limiting ring; 902. Gear ring; 903. Actuating rod; 904. Second motor; 905. Gear; 1001. Equal feed plate; 1002. Third motor; 1003. Large sprocket; 1004. Small sprocket; 1005. Chain; 1101. Conveying cylinder; 1102. Fourth motor; 1103. Variable pitch spiral blades; 1104. Feed hopper; 1105. Feed pipe. Detailed Implementation

[0017] The present invention will now be further described in conjunction with the accompanying drawings and specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments. Unless otherwise specified, the materials and equipment used in this embodiment are all commercially available. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application.

[0018] In the description of this application, it should be understood that the terms "upper," "lower," "front," "rear," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application 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, and therefore should not be construed as a limitation on this application. In the description of this application, "a plurality of" means two or more, unless otherwise precisely specified.

[0019] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "connected," "linked," and "connected" should be interpreted broadly. For example, they can refer to a fixed connection, a connection through an intermediary, the internal connection of two elements, or the interaction between two elements. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0020] The terms "first," "second," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such process, method, product, or apparatus.

[0021] Please refer to Figures 1-6A continuous processing device for pyrolysis biomass includes a support frame 1; it also includes a pyrolysis furnace 2 mounted on the support frame 1, a biochar collection box 3 mounted on the pyrolysis furnace 2, a first motor 4 mounted on the pyrolysis furnace 2, equidistant spiral blades 5 mounted on the output end of the first motor 4, a discharge pipe 6 mounted on the pyrolysis furnace 2, a feeding box 7 mounted on the pyrolysis furnace 2, a storage tank 8 mounted on the feeding box 7, a feeding assembly mounted on the support frame 1, an air-tight feeding assembly mounted on the feeding box 7, and an anti-clogging assembly mounted on the storage tank 8. The discharge pipe 6 is located inside the biochar collection box 3, and the output end of the feeding assembly is located above the storage tank 8. The anti-clogging component includes a limiting ring 901 installed on the outside of the storage tank 8, a toothed ring 902 rotatably connected to the inside of the limiting ring 901, a lever 903 fixedly connected to the toothed ring 902, and a drive assembly installed on the storage tank 8 and the limiting ring 901. The lever 903 is located inside the storage tank 8, and the drive assembly is used to drive the toothed ring 902 to rotate.

[0022] In a preferred embodiment of this utility model, the operator feeds the biomass raw materials into the feeding assembly. After the feeding assembly starts operating, it transports the biomass raw materials to the storage tank 8 for temporary storage, preparing for subsequent continuous feeding. During the feeding process in the storage tank 8, the anti-blocking assembly operates, driving the gear ring 902 to rotate inside the limit ring 901. The gear ring 902 drives the actuating rod 903 on it to rotate inside the storage tank 8. The actuating rod 903 agitates the biomass raw materials in the storage tank 8, preventing the raw materials from clumping, bridging, and blocking the feeding channel. The biomass raw materials in the storage tank 8 enter the feeding box 7, and the air-tight feeding assembly starts, ensuring... Under the premise that the interior of the pyrolysis furnace 2 is not connected to the outside air to avoid affecting the pyrolysis reaction atmosphere, biomass is quantitatively and continuously fed into the pyrolysis furnace 2. The first motor 4 is started, driving the equidistant spiral blades 5 at the output end to rotate. The equidistant spiral blades 5 push the biomass to move evenly inside the pyrolysis furnace 2. The biomass undergoes a pyrolysis reaction in the high-temperature environment of the pyrolysis furnace 2 to generate biochar. The biochar generated by pyrolysis is pushed by the equidistant spiral blades 5 and discharged through the discharge pipe 6 on the pyrolysis furnace 2. Since the discharge pipe 6 is located inside the biochar collection box 3, the biochar falls directly into the biochar collection box 3 for collection.

[0023] In a preferred embodiment of this utility model, the driving assembly includes a second motor 904 mounted on the storage tank 8 and a gear 905 mounted on the output end of the second motor 904. The gear 905 is located inside the limiting ring 901 and meshes with the gear ring 902. The second motor 904 is used to drive the gear 905 to rotate. By starting the second motor 904 mounted on the storage tank 8, the output end of the second motor 904 drives the gear 905 to rotate. Since the gear 905 is located inside the limiting ring 901 and meshes with the gear ring 902, the rotation of the gear 905 will drive the gear ring 902 to rotate synchronously inside the limiting ring 901, thereby driving the agitator 903 on the gear ring 902 to stir the raw materials in the storage tank 8, so as to achieve the purpose of preventing agglomeration and bridging.

[0024] In a preferred embodiment of this utility model, the airtight feeding assembly includes an equal-quantity feeding plate 1001 rotatably connected within the feeding box 7, a third motor 1002 installed on one side of the feeding box 7, and a transmission assembly installed on the output end of the third motor 1002 and the equal-quantity feeding plate 1001. The third motor 1002 drives the equal-quantity feeding plate 1001 to rotate through the transmission assembly. When the biomass raw material in the storage tank 8 enters the feeding box 7, the third motor 1002 is started. The third motor 1002 transmits power to the equal-quantity feeding plate 1001 rotatably connected within the feeding box 7 through the transmission assembly, driving the equal-quantity feeding plate 1001 to rotate at a uniform speed. During the rotation of the equal-quantity feeding plate 1001, the raw material in the feeding box 7 is quantitatively separated and gradually transported to the pyrolysis furnace 2. At the same time, due to the cooperation between the equal-quantity feeding plate 1001 and the inner wall of the feeding box 7, the airtightness of the feeding channel is always maintained, preventing air from entering the pyrolysis furnace 2.

[0025] In a preferred embodiment of this utility model, the transmission assembly includes a large sprocket 1003 fixedly connected to the output end of the third motor 1002, a small sprocket 1004 fixedly connected to the equal-quantity unloading plate 1001, and a chain 1005 drivingly connected to the large sprocket 1003 and the small sprocket 1004. After the third motor 1002 is started, the output end of the third motor 1002 drives the fixedly connected large sprocket 1003 to rotate. Since the large sprocket 1003 and the small sprocket 1004 fixedly connected to the equal-quantity unloading plate 1001 are driven by the chain 1005, the rotation of the large sprocket 1003 will drive the small sprocket 1004 to rotate synchronously through the chain 1005. The small sprocket 1004 then drives the equal-quantity unloading plate 1001 to rotate at a uniform speed in the unloading box 7, thus completing the power transmission.

[0026] Another embodiment based on the transmission component: Other existing structures can also be used, such as large pulleys, small pulleys, and synchronous belts; replacing large sprockets with large pulleys 1003, small sprockets with small pulleys 1004, and chains with synchronous belts 1005; the advantages are that the synchronous belt and pulleys transmit power through tooth meshing, and the contact method is flexible meshing without rigid impact; at the same time, the synchronous belt itself is made of flexible materials such as rubber or polyurethane, which can effectively absorb vibration during operation and significantly reduce transmission noise.

[0027] In a preferred embodiment of this utility model, the equal-quantity feeding plate 1001 consists of six fixed plates extending evenly in all directions at specific angles, with the fixed plates abutting against the inner wall of the feeding box 7; the equal-quantity feeding plate 1001 extends evenly in all directions at specific angles, and the fixed plates abut tightly against the inner wall of the feeding box 7; when the equal-quantity feeding plate 1001 rotates, two adjacent fixed plates and the inner wall of the feeding box 7 form a closed "material cavity", and the raw material falling from the storage tank 8 fills the "material cavity"; as the equal-quantity feeding plate 1001 continues to rotate, when the "material cavity" moves to the feeding port position, the raw material falls from the "material cavity" into the pyrolysis furnace 2; since the six fixed plates are evenly distributed, each "material cavity" has the same volume, achieving quantitative conveying, and the abutment between the fixed plates and the inner wall of the feeding box 7 always blocks the airflow path, ensuring the airtight effect.

[0028] In a preferred embodiment of this utility model, the feeding assembly includes a conveying cylinder 1101 mounted on a support frame 1, a conveying component mounted on the conveying cylinder 1101, a feed hopper 1104 mounted on the conveying cylinder 1101, and a discharge pipe 1105 mounted on the conveying cylinder 1101. The conveying component is used to move the biomass within the conveying cylinder 1101. When the conveying component is activated, it moves the biomass from one end of the feed hopper 1104 to the other end of the discharge pipe 1105 within the conveying cylinder 1101. When the biomass reaches the discharge pipe 1105, it falls through the discharge pipe 1105 into the storage tank 8 located below it, completing the biomass feeding process and providing continuous feed for subsequent pyrolysis reactions.

[0029] In a preferred embodiment of this invention, the conveying component includes a fourth motor 1102 mounted on a conveying cylinder 1101 and a variable-pitch helical blade 1103 mounted on the output end of the fourth motor 1102. The fourth motor 1102 drives the variable-pitch helical blade 1103 to rotate. When the fourth motor 1102 is started, its output end drives the variable-pitch helical blade 1103 connected to it to rotate within the conveying cylinder 1101. During the rotation of the variable-pitch helical blade 1103, its blades generate a thrust on the biomass within the conveying cylinder 1101, pushing the biomass from one end of the feed hopper 1104 to the other end of the discharge pipe 1105, and finally into the storage tank 8 through the discharge pipe 1105, thus realizing the conveying of biomass.

[0030] In a preferred embodiment of this invention, the blade spacing of the variable-pitch helical blade 1103 gradually decreases from one end of the feed hopper 1104 to the other end of the discharge pipe 1105. When the fourth motor 1102 drives the variable-pitch helical blade 1103 to rotate, the biomass moves forward within the conveying cylinder 1101 as the blades rotate. During this movement, as the blade spacing gradually decreases, the compressive force on the biomass gradually increases, and the air inside the biomass is gradually squeezed out. The biomass with squeezed-out air has a higher density and can more fully contact the heat source after entering the pyrolysis furnace 2, thereby improving the pyrolysis reaction efficiency and reaction effect.

[0031] During operation, the raw material enters the conveying cylinder 1101 from the feed hopper 1104. The fourth motor 1102 drives the variable pitch spiral blades 1103 to rotate. As the blade spacing gradually decreases from the feed end to the discharge pipe 1105, it compresses the biomass during the conveying process, reducing the internal air. Subsequently, the raw material enters the storage tank 8 through the discharge pipe 1105. The second motor 904 drives the gear 905 to rotate. The gear ring 902 meshing with the gear 905 rotates within the limiting ring 901. The agitator 903 fixed on the gear ring 902 stirs the biomass inside the storage tank 8 to prevent blockage and bridging, ensuring that the raw material smoothly enters the discharge box 7. The third motor 1002 drives the equal-volume discharge plate 1001 to rotate through the transmission assembly composed of the large sprocket 1003, the chain 1005, and the small sprocket 1004. The six fixed plates of the plate form an equal space, carrying a fixed amount of biomass during rotation. They maintain close contact with the inner wall of the chamber, ensuring the airtightness of the pyrolysis furnace 2 and preventing gas leakage. After the biomass enters the pyrolysis furnace 2, the first motor 4 drives the equidistant spiral blades 5 to rotate, propelling the biomass to move uniformly and fully undergo the pyrolysis reaction. The resulting biochar is pushed by the spiral blades towards the discharge pipe 6 and finally falls into the biochar collection box 3 for collection, achieving continuous and efficient pyrolysis treatment of biomass.

[0032] Although only certain components and embodiments of this application have been illustrated and described, many modifications and alterations will be apparent to those skilled in the art without actually departing from the scope and spirit of the claims, such as variations in the size, dimensions, structure, shape and proportion of the various elements, their installation arrangement, the materials used, their color, orientation, etc.

[0033] Finally, it should be noted that the above embodiments are only preferred embodiments of this utility model and should not be used to limit the scope of protection of this utility model. Any non-substantial changes and substitutions made by those skilled in the art based on this utility model shall fall within the scope of protection claimed by this utility model.

Claims

1. A continuous processing device for pyrolysis biomass, comprising a support frame (1); characterized in that: It also includes a pyrolysis furnace (2) installed on the support frame (1), a biochar collection box (3) installed on the pyrolysis furnace (2), a first motor (4) installed on the pyrolysis furnace (2), equidistant spiral blades (5) installed at the output end of the first motor (4), a discharge pipe (6) installed on the pyrolysis furnace (2), a feeding box (7) installed on the pyrolysis furnace (2), a storage tank (8) installed on the feeding box (7), a feeding assembly installed on the support frame (1), an air-tight feeding assembly installed on the feeding box (7), and an anti-blocking assembly installed on the storage tank (8). The discharge pipe (6) is located inside the biochar collection box (3), and the output end of the feeding assembly is located above the storage tank (8). The anti-clogging component includes a limiting ring (901) installed on the outside of the storage tank (8), a toothed ring (902) rotatably connected to the inside of the limiting ring (901), a lever (903) fixedly connected to the toothed ring (902), and a drive assembly installed on the storage tank (8) and the limiting ring (901). The lever (903) is located inside the storage tank (8), and the drive assembly is used to drive the toothed ring (902) to rotate.

2. The continuous processing device for pyrolysis biomass according to claim 1, characterized in that: The drive assembly includes a second motor (904) mounted on the storage tank (8) and a gear (905) mounted on the output end of the second motor (904). The gear (905) is located inside the limiting ring (901) and meshes with the gear ring (902). The second motor (904) is used to drive the gear (905) to rotate.

3. The continuous processing device for pyrolysis biomass according to claim 1, characterized in that: The air-tight feeding assembly includes an equal-volume feeding plate (1001) rotatably connected in the feeding box (7), a third motor (1002) installed on one side of the feeding box (7), and a transmission assembly installed on the output end of the third motor (1002) and the equal-volume feeding plate (1001). The third motor (1002) drives the equal-volume feeding plate (1001) to rotate through the transmission assembly.

4. The continuous processing apparatus for pyrolysis biomass according to claim 3, characterized in that: The transmission assembly includes a large sprocket (1003) fixedly connected to the output end of the third motor (1002), a small sprocket (1004) fixedly connected to the equal-volume feed plate (1001), and a chain (1005) that is driven between the large sprocket (1003) and the small sprocket (1004).

5. The continuous processing apparatus for pyrolysis biomass according to claim 3, characterized in that: The equal-quantity feeding plate (1001) consists of six fixed plates that extend evenly in all directions and are distributed at a specific angle. The fixed plates abut against the inner wall of the feeding box (7).

6. The continuous processing apparatus for pyrolysis biomass according to claim 1, characterized in that: The feeding assembly includes a conveying cylinder (1101) mounted on a support frame (1), a conveying component mounted on the conveying cylinder (1101), a feed hopper (1104) mounted on the conveying cylinder (1101), and a discharge pipe (1105) mounted on the conveying cylinder (1101). The conveying component is used to drive the biomass to move inside the conveying cylinder (1101).

7. The continuous processing apparatus for pyrolysis biomass according to claim 6, characterized in that: The conveying component includes a fourth motor (1102) mounted on the conveying cylinder (1101) and a variable pitch helical blade (1103) mounted on the output end of the fourth motor (1102). The fourth motor (1102) is used to drive the variable pitch helical blade (1103) to rotate.

8. The continuous processing apparatus for pyrolysis biomass according to claim 7, characterized in that: The blade spacing of the variable pitch helical blade (1103) gradually decreases from one end of the feed hopper (1104) to one end of the discharge pipe (1105).

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