Solid biomass fuel grading mechanism
By introducing a multi-directional stirring structure with guide plates and stirring blades into the biomass fuel grading mechanism, combined with the design of brushes and filter plates, the problem of uneven material mixing is solved, achieving efficient and accurate grading and stable equipment operation, thus meeting the requirements of high-efficiency production.
Patent Information
- Application Number
- CN202520102814.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-16
- Publication Date
- 2026-01-09
- Estimated Expiration
- 2035-01-16
AI Technical Summary
The existing biomass fuel grading mechanisms use a single mixing method, resulting in uneven mixing of materials, which affects the accuracy and efficiency of grading and makes it difficult to meet the needs of high-efficiency production.
A stirring structure including a guide plate, a connecting rod, and stirring blades was designed. The stirring blades rotate in multiple directions to perform complex movements in the grading tank. Combined with a brush to clean impurities and a filter plate to screen impurities, the material is uniformly graded and the graded product quality is ensured.
It improves the accuracy and efficiency of grading, prevents impurities from mixing into the fuel, extends equipment life, meets the needs of high-efficiency production, and ensures the quality of graded products and the stability of equipment operation.
Smart Images
Figure CN223775413U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of biomass fuel technology, and in particular to a solid biomass fuel grading mechanism. Background Technology
[0002] In the field of biomass fuel technology, solid biomass fuel grading mechanisms play a crucial role. Biomass fuels are widely available, such as agricultural waste and forestry residues. Grading is essential in their production process because biomass fuels of different particle sizes vary in combustion efficiency and applicability, necessitating grading according to particle size to meet diverse usage requirements.
[0003] Existing biomass fuel grading mechanisms primarily rely on agitators to stir the materials, causing them to move within the grading bin. Grading is then achieved using baffles and filter plates with varying pore sizes within the bin. However, existing agitators employ a relatively simple agitation method, making it difficult to achieve uniform mixing of the materials. During the agitation process, some materials tend to accumulate in the corners or at the bottom of the grading bin, failing to fully contact the agitator blades, resulting in incomplete mixing. This leads to uneven material movement within the grading bin, affecting the accuracy and efficiency of grading, resulting in a slow grading rate that fails to meet the demands of high-efficiency production. Utility Model Content
[0004] To overcome the above shortcomings, this utility model provides a solid biomass fuel grading mechanism, which aims to improve the problem that the existing stirring devices have a relatively simple stirring method and are difficult to make the internal materials uniformly stirred.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a solid biomass fuel grading mechanism, comprising a base, a grading barrel fixedly connected to the upper surface of the base, a partition fixedly connected inside the grading barrel, a through hole opened below the grading barrel, a bracket fixedly connected to the upper surface of the base, a guide plate fixedly connected to the outer wall of the bracket, a connecting rod rotatably connected inside the guide plate, a connecting plate fixedly connected to the outer wall of the connecting rod, a connecting rod rotatably connected inside the connecting plate, a stirring blade fixedly connected to the outer wall of the connecting rod, and a guiding assembly provided on the inner wall of the base, the guiding assembly being used to keep the grading barrel always tilted.
[0006] Furthermore, the guiding assembly includes a second guide plate, the outer wall of which is fixedly connected to the inner wall of the base, the outer wall of the grading bucket is fixedly connected to the outer wall of the second guide plate, and a first discharge device is fixedly connected to the lower surface of the second guide plate.
[0007] Furthermore, a brush is fixedly connected to the outer wall of the connecting plate, and the output end of the brush is slidably connected to the inner wall of the grading barrel.
[0008] Furthermore, a filter plate is fixedly connected inside the discharge device, and a flow guide plate is fixedly connected to the outer wall of the discharge device, with the flow guide plate positioned below the filter plate.
[0009] Furthermore, the outer wall of the connecting rod is rotatably connected to the inside of the grading tank, and the outer wall of the stirring blade is rotatably connected to the inside of the grading tank.
[0010] Furthermore, a second discharge device is fixedly connected to the lower surface of the second guide plate, and a third discharge device is fixedly connected to the lower surface of the second guide plate.
[0011] Furthermore, the outer wall of the filter plate is fixedly connected to the inside of the second discharger, and the outer wall of the filter plate is fixedly connected to the inside of the third discharger.
[0012] Furthermore, a protective door is provided on one side of the grading barrel near the guide plate, a handle is fixedly connected to one end of the connecting rod near the protective door, and a feeder is fixedly connected above the grading barrel.
[0013] This utility model has the following beneficial effects:
[0014] 1. In this utility model, by designing a stirring structure, the problems of single stirring mode and uneven material stirring in existing stirring devices can be effectively solved. The cooperation of guide plate one, connecting rod one, connecting plate, connecting rod two and stirring blade allows the stirring blade to rotate and stir in multiple directions in the grading tank. The movement trajectory of the stirring blade in the grading tank is more complex, which can fully contact the material in different positions and avoid the situation where the material accumulates in corners or at the bottom and is difficult to stir fully. This makes the material move evenly in the grading tank, greatly improves the accuracy and efficiency of grading, speeds up the grading rate and meets the needs of high-efficiency production.
[0015] 2. In this invention, during the grading process, the brush is tightly slidably connected to the inner wall of the grading tank. As the stirring blades rotate, the brush can promptly remove impurities adhering to the inner wall of the grading tank. The removed impurities fall through the through-hole at the bottom of the grading tank and into the filter plate inside the discharge device under gravity. The filter plate can screen the impurities, and smaller impurities pass through the filter plate and are discharged under the guidance of the guide plate. This design can effectively prevent impurities from mixing into biomass fuels of different grades, ensuring the quality of the graded products. It also avoids the adverse effects of impurities accumulating in the grading tank on equipment operation, extends the service life of the equipment, and improves the stability of equipment operation. Attached Figure Description
[0016] Figure 1 This is a three-dimensional structural diagram of a solid biomass fuel grading mechanism proposed in this utility model;
[0017] Figure 2 This is a schematic diagram of the grading barrel part of a solid biomass fuel grading mechanism proposed in this utility model;
[0018] Figure 3 This is a schematic diagram of the partition section of a solid biomass fuel grading mechanism proposed in this utility model.
[0019] Legend:
[0020] 1. Grading bin; 2. Support frame; 3. Base; 4. Feeder; 5. Guide plate one; 6. Handle; 7. Discharge device one; 8. Diverting plate; 9. Discharge device two; 10. Discharge device three; 11. Partition plate; 12. Brush; 13. Connecting rod one; 14. Connecting rod two; 15. Stirring blade; 16. Filter plate; 17. Guide plate two; 18. Through hole; 19. Protective door; 20. Connecting plate. Detailed Implementation
[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0022] Reference Figure 1 - Figure 3 This utility model provides an embodiment of a solid biomass fuel grading mechanism, comprising a base 3, a grading bin 1 fixedly connected to the upper surface of the base 3, a partition 11 fixedly connected inside the grading bin 1, a through hole 18 at the bottom of the grading bin 1, a bracket 2 fixedly connected to the upper surface of the base 3, a guide plate 5 fixedly connected to the outer wall of the bracket 2, a connecting rod 13 rotatably connected inside the guide plate 5, a connecting plate 20 fixedly connected to the outer wall of the connecting rod 13, a connecting rod 14 rotatably connected inside the connecting plate 20, a stirring blade 15 fixedly connected to the outer wall of the connecting rod 14, and a stirring blade 15 provided on the inner wall of the base 3. A guiding assembly is used to keep the grading tank 1 tilted at all times. The guiding assembly includes a second guide plate 17, the outer wall of which is fixedly connected to the inner wall of the base 3. The outer wall of the grading tank 1 is fixedly connected to the outer wall of the second guide plate 17. A first discharge device 7 is fixedly connected to the lower surface of the second guide plate 17. The outer wall of the second connecting rod 14 is rotatably connected to the inside of the grading tank 1. The outer wall of the stirring blade 15 is rotatably connected to the inside of the grading tank 1. A protective door 19 is provided on the side of the grading tank 1 near the first guide plate 5. A handle 6 is fixedly connected to the end of the first connecting rod 13 near the protective door 19. A feeder 4 is fixedly connected to the top of the grading tank 1.
[0023] Specifically, the base 3 is the foundation of the entire mechanism, providing stable support for other components and ensuring stable equipment operation. A grading tank 1 is fixedly connected to its surface. The grading tank 1 is used to hold materials, and a partition 11 is installed inside. Through the holes in the partition 11, the graded materials can move to the next area for further grading. Grading is achieved through the rotation of the agitator. The through-hole 18 at the bottom facilitates the discharge of impurities and materials of specific particle sizes, preventing accumulation and affecting grading. The bracket 2 on the base 3 supports the guide plate 5, providing a stable mounting position and ensuring accurate guidance, thus ensuring stable movement of components such as the connecting rod 13. The guide plate 5 is rotatably connected to the connecting rod 13, providing support and guidance for its rotation, driving the connecting plate 20 and the agitator blade 15 to move regularly. The connecting rod 13 is fixedly connected to the connecting plate 20, transmitting power to the connecting plate 20, causing the connecting plate 20 to drive the relevant components to rotate, allowing the agitator blade 15 to agitate the materials from multiple directions, ensuring full contact between the materials and the agitator blade 15. A connecting rod 24 is rotatably connected inside the connecting plate 20, transmitting power to the agitator blade 15 during grading. The grading tank 1 rotates around an axis inside the tank, working with other components to achieve a complex mixing trajectory and improve the mixing effect. The outer wall of connecting rod 2 14 is connected to the mixing blade 15. When rotating, the mixing blade 15 rotates inside the tank, working together with connecting rod 1 13 to apply shearing and impact forces to the material, breaking up agglomerates, promoting uniform distribution, and facilitating grading. The guide assembly on the inner wall of base 3 keeps the grading tank 1 tilted. Guide plate 2 17 in the guide assembly is fixed to the inner wall of base 3 and connected to the grading tank 1. The tilted design facilitates material flow and grading, allowing materials of different particle sizes to be graded by weight. The force and the baffle 11 flow to different discharge positions to improve the grading effect. The protective door 19 on the side of the grading barrel 1 near the guide plate 5 serves as a safety protection. When closed, it prevents operators from contacting moving parts and ensures safety. When needed, it can be opened to facilitate internal operation. The handle 6 on the end of the connecting rod 13 near the protective door 19 facilitates manual operation. The connecting rod 13 can be manually rotated for preliminary stirring or position adjustment before equipment start-up or in special circumstances. The feeder 4 above the grading barrel 1 is the material inlet, allowing biofuel to enter for grading.
[0024] Reference Figure 1 - Figure 3 A brush 12 is fixedly connected to the outer wall of the connecting plate 20, and the output end of the brush 12 is slidably connected to the inner wall of the grading tank 1; a filter plate 16 is fixedly connected inside the discharge device 1 7, and a guide plate 8 is fixedly connected to the outer wall of the discharge device 1 7, with the guide plate 8 located below the filter plate 16; a discharge device 2 9 is fixedly connected to the lower surface of the guide plate 2 17, and a discharge device 3 10 is fixedly connected to the lower surface of the guide plate 2 17; the outer wall of the filter plate 16 is fixedly connected to the inside of the discharge device 2 9, and the outer wall of the filter plate 16 is fixedly connected to the inside of the discharge device 3 10.
[0025] Specifically, a brush 12 is fixedly connected to the outer wall of the connecting plate 20. During the rotation of the connecting plate 20, the output end of the brush 12 slides tightly against the inner wall of the grading tank 1. The main function of the brush 12 is to promptly clean impurities adhering to the inner wall of the grading tank 1 as the stirring blade 15 rotates, ensuring the purity of the graded product and the stable operation of the equipment. A filter plate 16 is fixedly connected inside the discharge device 7. The filter plate 16 plays a crucial screening role in the discharge device 7. When impurities and materials falling from the through hole 18 of the grading tank 1 enter the discharge device 7, the filter plate 16 only allows impurities to pass through, further improving the impurity separation effect and ensuring that the particle size of the discharged material meets expectations. A guide is fixedly connected to the outer wall of the discharge device 7. The flow plate 8 is located below the filter plate 16. The function of the flow plate 8 is to guide the impurities after being screened by the filter plate 16 to a specific location for subsequent processing, preventing material from scattering and causing waste or polluting the working environment. The lower surface of the guide plate 2 17 is fixedly connected to the discharge device 2 9 and the discharge device 3 10. The positions of the discharge devices 2 9 and 3 10 are designed to facilitate the collection of biomass fuel after grading from different areas of the grading tank 1. During the grading process, according to the particle size, materials of different particle size ranges flow in the inclined grading tank 1 and flow to the discharge devices 2 9 and 3 10 respectively under the action of the guide components. The filter plates 16 are fixedly connected inside both discharge devices to screen impurities and improve product quality.
[0026] Working principle: The solid biomass fuel to be graded is evenly fed into the grading tank 1 through the feeder 4. At this time, the material naturally accumulates in the grading tank 1. Since the grading tank 1 is kept in an inclined state under the action of the guide plate 17 of the guide assembly, the material will provide power for the material inside under the action of gravity. Some material begins to slide down along the inclined tank wall. At this time, power is generated by rotating the handle 6. The power is transmitted to the connecting plate 20 through the connecting rod 13. The connecting plate 20 drives the connecting rod 14 to rotate, thereby causing the stirring blade 15 to perform complex movements in the grading tank 1. The stirring blade 15 rotates around the axis of the connecting rod 14 on the one hand, and on the other hand, as the stirring blade 15 moves along the axis of the connecting rod 14, it moves along the axis of the connecting rod 14. The rotation of connecting rod 13 causes it to rotate in a circular motion within the grading tank 1. This multi-directional rotation causes the stirring blades 15 to apply shearing and impact forces to the material, breaking up its agglomeration and ensuring thorough mixing within the grading tank 1. This ensures that material in different locations is stirred, achieving uniform distribution and preventing material accumulation in corners or at the bottom. During the stirring process, the material continues to move within the grading tank 1. As stirring progresses, smaller particles gradually pass through the holes in the partition 11 into other areas of the grading tank 1, further achieving grading. Under the combined action of gravity and stirring, materials of different particle sizes are separated according to their size within the inclined grading tank. Within the grading tank 1, smaller particles and impurities separated during the grading process flow to different locations. They fall through the through-hole 18 at the bottom of the grading tank 1. When impurities and some small particles fall through the through-hole 18 into the discharge device 7, the filter plate 16 inside the discharge device 7 screens them. Larger particles are blocked above the filter plate 16, while smaller particles and materials meeting certain particle size requirements pass through the filter plate 16 and are discharged to a designated location under the guidance of the guide plate 8. Simultaneously, during the stirring process, the brush 12 on the outer wall of the connecting plate 20 continuously cleans the impurities adhering to the inner wall of the grading tank 1 as the stirring blades 15 rotate. The cleaned impurities also pass through the filter plate 16. The material enters through the through-hole 18 into the discharger 7. Impurities are separated from the material by the filter plate 16 installed inside the discharger, effectively preventing impurities from mixing into the biomass fuel and ensuring the quality of the graded product. The biomass fuels of different particle sizes after grading can flow to the dischargers 2 and 3 connected to the lower surface of the guide plate 2 17 according to the particle size. The dischargers 2 and 3 collect biomass fuels of different sizes, ensuring that the particle size of the material flowing out of different dischargers meets the corresponding requirements. This achieves multi-level grading of the material to meet different usage needs, thus completing the entire grading process of solid biomass fuel.
[0027] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A solid biomass fuel grading mechanism, comprising a base (3), characterized in that: A grading bucket (1) is fixedly connected to the upper surface of the base (3). A partition (11) is fixedly connected inside the grading bucket (1). A through hole (18) is opened below the grading bucket (1). A bracket (2) is fixedly connected to the upper surface of the base (3). A guide plate (5) is fixedly connected to the outer wall of the bracket (2). A connecting rod (13) is rotatably connected inside the guide plate (5). A connecting plate (20) is fixedly connected to the outer wall of the connecting rod (13). A connecting rod (14) is rotatably connected inside the connecting plate (20). A stirring blade (15) is fixedly connected to the outer wall of the connecting rod (14). A guide assembly is provided on the inner wall of the base (3). The guide assembly is used to keep the grading bucket (1) tilted at all times.
2. The solid biomass fuel grading mechanism according to claim 1, characterized in that: The guiding assembly includes a second guide plate (17), the outer wall of the second guide plate (17) is fixedly connected to the inner wall of the base (3), the outer wall of the grading bucket (1) is fixedly connected to the outer wall of the second guide plate (17), and a first discharge device (7) is fixedly connected to the lower surface of the second guide plate (17).
3. A solid biomass fuel grading mechanism according to claim 2, characterized in that: A brush (12) is fixedly connected to the outer wall of the connecting plate (20), and the output end of the brush (12) is slidably connected to the inner wall of the grading barrel (1).
4. A solid biomass fuel grading mechanism according to claim 3, characterized in that: The discharge device (7) is internally fixedly connected to a filter plate (16), and the discharge device (7) is externally fixedly connected to a guide plate (8), which is located below the filter plate (16).
5. A solid biomass fuel grading mechanism according to claim 1, characterized in that: The outer wall of the connecting rod 2 (14) is rotatably connected to the inside of the grading tank (1), and the outer wall of the stirring blade (15) is rotatably connected to the inside of the grading tank (1).
6. A solid biomass fuel grading mechanism according to claim 4, characterized in that: The lower surface of the guide plate 2 (17) is fixedly connected to the discharge device 2 (9), and the lower surface of the guide plate 2 (17) is fixedly connected to the discharge device 3 (10).
7. A solid biomass fuel grading mechanism according to claim 6, characterized in that: The outer wall of the filter plate (16) is fixedly connected to the inside of the second discharger (9), and the outer wall of the filter plate (16) is fixedly connected to the inside of the third discharger (10).
8. A solid biomass fuel grading mechanism according to claim 1, characterized in that: The grading barrel (1) is provided with a protective door (19) on the side near the guide plate (5), and a handle (6) is fixedly connected to the end of the connecting rod (13) near the protective door (19). A feeder (4) is fixedly connected above the grading barrel (1).