Planetary helical orbit-rotation type circular conical bottom biomass bin

Abstract

This invention relates to the field of biomass silo technology, providing a planetary spiral-rotating circular cone-bottom biomass silo, comprising an outer wall, a collection hopper fixedly connected to the middle of the inner wall of the outer wall, a rotating ring rotatably connected to the lower end of the collection hopper, a tray fixedly connected to the lower end of the inner wall of the outer wall, a discharge pipe rotatably connected to the middle of the tray, the lower end of the rotating ring rotatably connected to the upper side of the tray, a fixing ring fixedly connected to the upper outer periphery of the tray, and annular rails fixedly connected to the upper inner and outer periphery of the fixing ring. By employing a planetary spiral-rotating composite motion mechanism, the spiral blades revolve around the center of the silo while continuously rotating at high speed around their own axis, forming a three-dimensional mixing and pushing effect with all-round, dead-angle-free action. This actively eliminates problems such as bridging, arching, and caking that easily occur in biomass raw materials due to their viscosity and high moisture content, preventing discharge blockage and achieving long-term continuous, uniform, and stable quantitative discharge.

Description

Technical Field

[0001] This invention relates to the field of biomass silo technology, specifically a planetary spiral-rotating circular cone-bottom biomass silo. Background Technology

[0002] Biomass energy, as a clean and renewable energy source, is widely used in power generation, heating, and milling. The efficient storage and stable transportation of biomass raw materials such as straw, sawdust, and rice husks are crucial for ensuring the continuous operation of the system. During utilization, biomass raw materials require intermediate storage, buffering, and distribution due to process requirements, necessitating the use of silos. Silos typically come in two types: square and round.

[0003] A square silo has a row of screws at the bottom for unloading, which is relatively simple in structure, but has the following disadvantages: It requires a full array of screws at the bottom of the silo, otherwise bridging and arching are likely. A large number of screws results in high power consumption. Because the material directly presses on the screw blades, the resistance is high, easily causing blockages and jamming. The blades also wear out quickly. Another type is a circular silo with a cantilevered unloading screw that rotates both on its own axis and its own rotation. This type of silo overcomes the disadvantages of the square silo; however, because the drive mechanism of this type of silo is centered on the silo and uses a cantilevered screw, the silo cannot be made too large, limiting its application range. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention provides a planetary spiral-rotating circular cone-bottom biomass silo, which solves the problems of existing circular cone-bottom biomass silos relying on gravity for material feeding, such as bridging, arching, blockage, material breakage, material adhesion to the inner wall, poor material feeding uniformity, low conveying efficiency, weak adaptability to high-moisture and high-viscosity materials, excessive manual intervention, and high maintenance costs.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a planetary spiral-rotating circular cone-bottom biomass silo, comprising an outer wall, an aggregation hopper fixedly connected to the middle of the inner wall of the outer wall, a rotating ring rotatably connected to the lower end of the aggregation hopper, a tray fixedly connected to the lower end of the inner wall of the outer wall, a discharge pipe rotatably connected to the middle of the tray, and the lower end of the rotating ring rotatably connected to the tray. On the upper side of the tray, a fixed ring is fixedly connected to the upper outer periphery of the tray. An annular rail is fixedly connected to both the upper inner and outer periphery of the fixed ring. A fixed frame is slidably connected to the outer side of the annular rail. A beveled tooth ring is fixedly connected to both the front and rear sides of the left end of the fixed frame. The beveled tooth ring is fixedly connected to the outer side of the rotating ring. A rotating shaft is rotatably connected to the inside of the rotating ring. The left end of the rotating shaft is rotatably connected to the upper end of the feed pipe. A spiral blade is fixedly connected to the outside of the rotating shaft, located inside the rotating ring. The right end of the rotating shaft is rotatably connected to the upper end of the fixed frame. A drive assembly is provided on the lower left side of the collecting hopper.

[0006] Preferably, a bevel gear ring is fixedly connected to the upper middle part of the fixed ring, and a bevel gear is fixedly connected to the right end of the rotating shaft, with the bevel gear meshing with the upper side of the bevel gear ring.

[0007] Preferably, the lower end of the fixing frame has an opening in the middle for installing a bevel gear ring, and the lower end of the fixing frame has sliding grooves on both the left and right sides of the opening, the sliding grooves being used to cooperate with the annular rail.

[0008] Preferably, the drive assembly includes a U-shaped frame fixedly connected to the lower left side of the collection hopper, a stepper motor fixedly connected to the inner side of the U-shaped frame, and a flat gear fixedly connected to the drive end of the stepper motor.

[0009] Preferably, a flat toothed ring is fixedly connected to the upper outer end of the rotating ring, the flat toothed ring being meshed with the outside of the flat gear, and a scraper is fixedly connected to the inner side of the rotating ring, the upper end of the scraper being in close contact with the inner wall of the collecting hopper.

[0010] Preferably, a feeding port is provided on the outer side of the upper end of the feeding pipe, a conical top is fixedly connected to the top of the feeding pipe, and a protrusion is fixedly connected to the upper side of the conical top.

[0011] Preferably, the upper inner wall of the outer wall is fixedly connected to both the left and right sides of the inner wall, and a crossbar is movably connected to the inner side of the limit frame. A limit plate is fixedly connected to the inner side of the limit frame above the crossbar.

[0012] Preferably, two cylindrical members are fixedly connected to the middle of the crossbar, and movable rods are movably connected to the lower ends of the cylinders. A ball is fixedly connected to the lower end of the movable rod, and a lever is fixedly connected to the outside of the movable rod. The lower end of the ball is close to the upper side of the conical top.

[0013] Preferably, a movable block is fixedly connected to the upper end of the movable rod, the movable block is movably connected inside the cylinder, and a spring is provided inside the cylinder above the movable block. The part is fitted with a threaded cap.

[0014] Preferably, a cover plate is fixedly connected to the top of the outer wall, a feed pipe is fixedly connected to the middle of the cover plate, a discharge port is opened on the lower right side of the outer wall, a guide plate is provided inside the lower end of the outer wall, the right end of the guide plate passes through the inside of the discharge port, ear plates are fixedly connected to both the front and rear sides of the right end of the guide plate, the ear plates are fixedly connected to the lower inner wall of the outer wall, and the left end of the guide plate is located on the lower side of the feed pipe.

[0015] Working Principle: Raw materials are fed into the inner wall of the outer wall through the feed pipe for storage. When the raw materials are removed, a stepper motor is activated, driving a flat gear to rotate. The rotating flat gear drives a flat gear ring to rotate, which in turn drives a rotating ring. The rotating ring synchronously drives the fixed frame to rotate outside the annular track, and simultaneously drives the rotating shaft to rotate. The feed pipe rotates, and the rotating shaft, in its circular motion, drives a bevel gear to rotate. Simultaneously, the bevel gear, in conjunction with the bevel gear ring, drives the rotating shaft to rotate, which in turn drives the spiral blades to rotate. The rotating spiral blades push the raw materials towards... The material enters and exits through the discharge port at the top of the feeding pipe. The discharged material falls onto the guide plate and exits through the discharge port. During the rotation of the feeding pipe, the conical top and the protrusion rotate simultaneously. The rotating protrusion contacts the ball, pushing the movable rod upward. The upward-pushing movable rod causes the movable block to move upward inside the cylinder, thereby compressing the internal spring. When the ball passes the protrusion, the compressed spring pushes the movable block and the movable rod downward, thereby driving the lever to move up and down reciprocally, moving the material and preventing material accumulation that could cause blockage.

[0016] This invention provides a planetary spiral-rotating circular cone-bottom biomass silo. It has the following beneficial effects: 1. This invention employs a planetary spiral revolution-rotation composite motion mechanism, enabling the spiral blades to revolve around the center of the hopper while continuously rotating at high speed around their own axis. This creates a comprehensive, three-dimensional mixing and pushing effect, effectively eliminating bridging, arching, and caking problems that easily occur in biomass raw materials due to their viscosity and high moisture content. This fundamentally prevents material blockage, achieving long-term, continuous, uniform, and stable quantitative feeding, significantly improving feeding efficiency and operational continuity, and substantially reducing downtime caused by material blockage. With human intervention.

[0017] 2. This invention utilizes a scraper installed on the inner side of the rotating ring, which rotates synchronously with the hopper. The scraper remains in close contact with the inner wall of the collecting hopper, dynamically scraping away any material adhering to or accumulating on the inner wall. This effectively prevents raw materials from hardening and forming on the inner wall of the cone, avoiding excessive material buildup that could affect the effective volume of the hopper and ensure smooth material flow. Simultaneously, it reduces the frequency of manual cleaning, lowers labor intensity, extends equipment lifespan, and offers low maintenance costs and high practicality.

[0018] 3. This invention uses a conical top and a protrusion at the top of the feeding pipe, along with a ball, spring, movable rod, and lever to form a mechanical automatic reciprocating feeding mechanism. During the rotation of the feeding pipe, the protrusion periodically pushes the ball, causing the lever to swing up and down at high frequency, continuously disturbing the material above and around the conical top, actively breaking up local accumulations, and further enhancing the anti-clogging effect. It is especially suitable for biomass raw materials with high humidity, high fiber, and high viscosity, and has wide adaptability and reliable operation.

[0019] 3. This invention uses a stepper motor and gear meshing transmission, which provides smooth transmission, uniform power, sensitive start and stop, and a wide speed range. The feeding speed can be flexibly adjusted according to the characteristics of the raw materials. It has a high degree of automation, is easy to operate, has a compact overall structure, reasonable layout, convenient installation and maintenance, low operating noise, and low energy consumption. It can be widely used in the storage and transportation of various biomass raw materials such as straw, sawdust, rice husks, and fruit shells, and has good economic benefits and promotional value. Attached Figure Description

[0020] Figure 1 is a cross-sectional schematic diagram of the present invention; Figure 2 is an overall schematic diagram of the present invention; Figure 3 is a schematic diagram of the rotating ring of the present invention; Figure 4 is a schematic diagram of the tray of the present invention; Figure 5 is a schematic diagram of the fixing frame of the present invention; Figure 6 is a schematic diagram of the movable rod of the present invention; Figure 7 is a schematic diagram of the cylinder of the present invention.

[0021] Among them, 1. outer wall; 2. gathering hopper; 3. rotating ring; 4. tray; 5. discharge pipe; 6. ring. 7. Rail; 8. Fixture; 9. Shaft; 10. Spiral blade; 11. Bevel gear; 12. Bevel gear ring; 13. Opening; 13. Slide groove; 14. U-shaped frame; 15. Stepper motor; 16. Flat gear; 17. Flat gear ring; 18. Scraper; 19. Discharge port; 20. Conical top; 21. Protrusion; 22. Discharge port; 23. Guide plate; 24. Ear plate; 25. Cover plate; 26. Feed pipe; 27. Limiting frame; 28. Crossbar; 29. ​​Limiting plate; 30. Cylinder; 31. Movable rod; 32. Ball; 33. Lever; 34. Movable block; 35. Spring; 36. Threaded cap; 37. Fixing ring. Detailed Implementation

[0022] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0023] Example: Please refer to Figures 1-7. This embodiment of the invention provides a planetary spiral-rotating circular conical-bottom biomass silo, comprising an outer wall 1. A collection hopper 2 is fixedly connected to the middle of the inner wall of the outer wall 1. A rotating ring 3 is rotatably connected to the lower end of the collection hopper 2. A tray 4 is fixedly connected to the lower end of the inner wall of the outer wall 1. A discharge pipe 5 is rotatably connected to the middle of the tray 4. The lower end of the rotating ring 3 is rotatably connected to the upper side of the tray 4. A fixing ring 37 is fixedly connected to the upper outer periphery of the tray 4. Annular rails 6 are fixedly connected to both the inner and outer sides of the upper side of the fixing ring 37. A fixing frame 7 is slidably connected to the outer side of the annular rails 6. Conical toothed rings 11 are fixedly connected to the front and rear sides of the left end of the fixing frame 7. The conical toothed rings 11 are fixedly connected to the outer side of the rotating ring 3. A rotating shaft 8 is rotatably connected inside the rotating ring 3. The left end of the rotating shaft 8 is rotatably connected to the upper end of the discharge pipe 5. A spiral blade 9 is fixedly connected to the outer side of the rotating shaft 8, located inside the rotating ring 3. The right end of the fixed ring 37 is rotatably connected to the upper end of the fixed frame 7. A drive assembly is provided on the lower left side of the collecting hopper 2. A bevel gear 11 is fixedly connected to the upper middle part of the fixed ring 37. A bevel gear 10 is fixedly connected to the right end of the rotating shaft 8. The bevel gear 10 meshes with the upper side of the bevel gear 11. An opening 12 is provided in the middle of the lower end of the fixed frame 7 for installing the bevel gear 11. Slide grooves 13 are provided on both the left and right sides of the opening 12 at the lower end of the fixed frame 7. The slide grooves 13 are used to mate with the ring rail 6. The drive assembly includes a U-shaped frame 14 fixedly connected to the lower left side of the collecting hopper 2, a stepper motor 15 fixedly connected to the inner side of the U-shaped frame 14, a spur gear 16 fixedly connected to the drive end of the stepper motor 15, a spur gear ring 17 fixedly connected to the upper outer side of the rotating ring 3, the spur gear ring 17 meshing with the outer side of the spur gear 16, and a scraper 18 fixedly connected to the inner side of the rotating ring 3, with the upper end of the scraper 18 closely attached to the inner wall of the collecting hopper 2.

[0024] Biomass raw materials are fed into the inner wall 1 of the silo through the feed pipe 26 in the middle of the cover plate 25, and temporarily stored in the area above the gathering hopper 2, providing storage space for subsequent uniform feeding. The overall structure has good sealing performance, which can reduce dust and moisture loss of raw materials and improve the stability of raw material storage. After the feeding operation is started, the drive component on the lower left side of the gathering hopper 2 starts to operate: the stepper motor 15 inside the U-shaped frame 14 drives the flat gear 16 to rotate. The flat gear 16 meshes with the flat tooth ring 17 on the outer side of the rotating ring 3, driving the rotating ring 3 to rotate smoothly around the lower end of the gathering hopper 2. The scraper 18 fixed inside the rotating ring 3 moves synchronously against the inner wall of the gathering hopper 2 with the revolution, which can clean the raw materials adhering to the inner wall in time, avoid the raw materials to accumulate and block the feeding channel, and ensure the cleanliness of the inner wall of the silo and smooth feeding. When the rotating ring 3 revolves, the fixed frame 7 drives the fixed frame 7 to slide synchronously around the annular rail 6 on the fixed ring 37 through the bevel tooth ring 11. Then, the rotating shaft 8 revolves around the center of the hopper; at the same time, the bevel gear 10 on the right end of the rotating shaft 8 meshes with the bevel gear ring 11 on the fixed ring 37. During the revolution, the bevel gear 10 is forced to rotate, which in turn drives the rotating shaft 8 and the external spiral blade 9 to rotate at high speed around their own axis, forming a planetary spiral motion mode of revolution and rotation. This can stir and push the biomass raw materials in the gathering hopper 2 in all directions, break the bridging and arching of raw materials, achieve dead-angle conveying, and greatly improve the uniformity and efficiency of feeding. The rotating spiral blade 9 continuously pushes the raw materials in the gathering hopper 2 towards the center. The raw materials enter the inside of the feeding pipe 5 through the feeding port 19 on the outer side of the upper end of the feeding pipe 5, and then are discharged from the lower end of the feeding pipe 5. The discharged raw materials fall onto the guide plate 23, and after being guided by the guide plate 23, are stably output from the discharge port 22 on the lower right side of the outer wall 1. The guide structure design can avoid the splashing of raw materials during feeding and ensure that the discharge is regular and controllable.

[0025] Please refer to Figures 1-7. A discharge port 19 is provided on the outer side of the upper end of the discharge pipe 5. A conical top 20 is fixedly connected to the top of the discharge pipe 5, and a protrusion 21 is fixedly connected to the upper side of the conical top 20. Limiting frames 27 are fixedly connected to both the left and right sides of the upper inner wall of the outer wall 1. A crossbar 28 is movably connected to the inner side of the limiting frame 27. A limiting plate 29 is fixedly connected to the inner side of the limiting frame 27 above the crossbar 28. The middle of the crossbar 28... Two cylindrical sections 30 are fixedly connected to the outer wall 1, arranged horizontally. A movable rod 31 is movably connected to the lower end of each cylindrical section 30. A ball 32 is fixedly connected to the lower end of the movable rod 31. A lever 33 is fixedly connected to the outside of the movable rod 31. The lower end of the ball 32 is close to the upper side of the conical top 20. A movable block 34 is fixedly connected to the upper end of the movable rod 31. The movable block 34 is movably connected inside the cylindrical section 30. A spring 35 is installed inside the cylindrical section 30, above the movable block 34. A threaded cap 36 is installed on the top of the cylindrical section 30. A cover plate 25 is fixedly connected to the top of the outer wall 1. A feed pipe 26 is fixedly connected to the middle of the cover plate 25. An outlet 22 is opened on the lower right side of the outer wall 1. A guide plate 23 is installed inside the lower end of the outer wall 1. The right end of the guide plate 23 passes through the inside of the outlet 22. Ear plates 24 are fixedly connected to both the front and rear sides of the right end. The ear plates 24 are fixedly connected to the lower inner wall of the outer wall 1. The left end of the guide plate 23 is set on the lower side of the lower end of the feed pipe 5.

[0026] The feed pipe 5 rotates synchronously with the rotating ring 3, causing the top conical top 20 and the upper protrusion 21 to rotate. Above the conical top 20, a cylinder 30 is fixed to the crossbar 28 inside the upper inner wall limit frame 27 of the outer wall 1. The lower end of the movable rod 31 inside the cylinder 30 has a ball 32 that is in close contact with the surface of the conical top 20. When the protrusion 21 rotates with the conical top 20, it periodically lifts the ball 32, pushing the movable rod 31 and the upper movable block 34 upward and compressing the spring 35. When the ball 32 passes the protrusion 21, the spring 35 rebounds, causing the movable rod 31 and the outer lever 33 to quickly return to their original positions, making the lever 33 swing up and down. This vibrating feeding structure can disturb the raw material above in real time, further preventing the raw material from accumulating and blocking at the conical top 20, providing double protection for continuous feeding and adapting to the conveying needs of high-humidity and high-viscosity biomass raw materials.

[0027] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A planetary spiral-rotating circular cone-bottom biomass silo, characterized in that, Includes an outer wall (1), with a gathering hopper (2) fixedly connected to the middle of the inner wall of the outer wall (1), a rotating ring (3) rotatably connected to the lower end of the gathering hopper (2), a tray (4) fixedly connected to the lower end of the inner wall of the outer wall (1), a feeding pipe (5) rotatably connected to the middle of the tray (4), the lower end of the rotating ring (3) rotatably connected to the upper side of the tray (4), a fixing ring (37) fixedly connected to the upper outer periphery of the tray (4), and an annular rail (6) fixedly connected to both the upper inner and outer periphery of the fixing ring (37), and the outer side of the annular rail (6) A fixed frame (7) is slidably connected to the fixed frame (7). Both the front and rear sides of the left end of the fixed frame (7) are fixedly connected to conical rings (11). The conical rings (11) are fixedly connected to the outside of the rotating ring (3). The rotating ring (3) is rotatably connected to a rotating shaft (8). The left end of the rotating shaft (8) is rotatably connected to the upper end of the feed pipe (5). The outside of the rotating shaft (8) is fixedly connected to a spiral blade (9) located inside the rotating ring (3). The right end of the rotating shaft (8) is rotatably connected to the upper end of the fixed frame (7). A drive assembly is provided on the lower left side of the collecting hopper (2).

2. The planetary spiral-rotating circular cone-bottom biomass silo according to claim 1, characterized in that, A bevel gear ring (11) is fixedly connected to the upper middle part of the fixed ring (37), and a bevel gear (10) is fixedly connected to the right end of the rotating shaft (8). The bevel gear (10) is meshed with the upper side of the bevel gear ring (11).

3. The planetary spiral-rotating circular cone-bottom biomass silo according to claim 1, characterized in that, The lower end of the fixing frame (7) has an opening (12) in the middle for installing a bevel ring (11). The lower end of the fixing frame (7) has a sliding groove (13) on both the left and right sides of the opening (12), and the sliding groove (13) is used to cooperate with the ring rail (6).

4. The planetary spiral-rotating circular cone-bottom biomass silo according to claim 1, characterized in that, The drive assembly includes a U-shaped frame (14) fixedly connected to the lower left side of the gathering bucket (2), a stepper motor (15) fixedly connected to the inner side of the U-shaped frame (14), and a flat gear (16) fixedly connected to the drive end of the stepper motor (15).

5. A planetary spiral-rotating circular cone-bottom biomass silo according to claim 1, characterized in that, A flat toothed ring (17) is fixedly connected to the upper outer end of the rotating ring (3). The flat toothed ring (17) is meshed with the outside of the flat gear (16). A scraper (18) is fixedly connected to the inner side of the rotating ring (3). The upper end of the scraper (18) is in close contact with the inner wall of the collecting hopper (2).

6. The planetary spiral-rotating circular cone-bottom biomass silo according to claim 1, characterized in that, The upper outer side of the feeding pipe (5) is provided with a feeding port (19), and a conical top (20) is fixedly connected to the top of the feeding pipe (5). A protrusion (21) is fixedly connected to the upper side of the conical top (20).

7. A planetary spiral-rotating circular cone-bottom biomass silo according to claim 1, characterized in that, Limiting frames (27) are fixedly connected to the upper inner wall of the outer wall (1) on both the left and right sides. A crossbar (28) is movably connected to the inner side of the limiting frame (27). A limiting plate (29) is fixedly connected to the inner side of the limiting frame (27) above the crossbar (28).

8. A planetary spiral-rotating circular cone-bottom biomass silo according to claim 7, characterized in that, The middle of the crossbar (28) is fixedly connected to two cylindrical columns (30) distributed on the left and right. The lower end of the cylindrical column (30) is movably connected to a movable rod (31). The lower end of the movable rod (31) is fixedly connected to a ball (32). The outside of the movable rod (31) is fixedly connected to a lever (33). The lower end of the ball (32) is close to the upper side of the conical top (20).

9. A planetary spiral-rotating circular cone-bottom biomass silo according to claim 8, characterized in that, The upper end of the movable rod (31) is fixedly connected to a movable block (34), which is movably connected inside the cylinder (30). A spring (35) is provided inside the cylinder (30) on the upper side of the movable block (34), and a threaded cap (36) is installed on the top of the cylinder (30).

10. A planetary spiral-rotating circular cone-bottom biomass silo according to claim 1, characterized in that, A cover plate (25) is fixedly connected to the top of the outer wall (1), and a feed pipe (26) is fixedly connected to the middle of the cover plate (25). A discharge port (22) is opened on the right side of the lower end of the outer wall (1). A guide plate (23) is provided inside the lower end of the outer wall (1). The right end of the guide plate (23) passes through the inside of the discharge port (22). Ear plates (24) are fixedly connected to both the front and rear sides of the right end of the guide plate (23). The ear plates (24) are fixedly connected to the inner wall of the lower end of the outer wall (1). The left end of the guide plate (23) is located on the lower side of the feed pipe (5).

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