Automatic ash removal mechanism of biomass boiler
The automatic ash removal mechanism for biomass boilers utilizes a motor-driven lifting frame and rotating shaft system, combined with spring and cutting blade design, to achieve efficient cleaning of ash inside the biomass boilers. This solves the problem of wasting incompletely burned fuel and improves combustion efficiency and ash emission speed.
Patent Information
- Application Number
- CN202521115656.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-06-03
- Publication Date
- 2026-05-19
- Estimated Expiration
- 2035-06-03
AI Technical Summary
In existing biomass boilers, unburned fuel can easily fall through the mesh of the grating plate during combustion, resulting in fuel waste.
An automatic ash removal mechanism for a biomass boiler was designed. The mechanism uses a push rod motor to drive the lifting frame, which in turn drives the rack and gear to rotate the sealing plate and the rotating shaft. Combined with the design of torsion springs and tension springs, the mechanism achieves the cleaning of the grid plate and the vibration removal of dust. The cutting blade crushes the unburned ash and collects the dust through the collection box.
It improves the ease of dust cleaning, prevents unburned fuel from falling, reduces fuel waste, improves fuel combustion, reduces dust accumulation inside the boiler, and enhances dust emission speed.
Smart Images
Figure CN224261742U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of biomass boiler technology, and in particular to an automatic ash removal mechanism for biomass boilers. Background Technology
[0002] Biomass boilers are a type of boiler that uses biomass energy as fuel. They are categorized into biomass steam boilers, biomass hot water boilers, biomass hot air furnaces, biomass thermal oil boilers, vertical biomass boilers, and horizontal biomass boilers. The classifications of biomass boilers include: horizontal biomass boilers, vertical biomass boilers, biomass gas-fired thermal oil boilers, biomass steam boilers, biomass hot water boilers, and biomass thermal oil boilers.
[0003] In some existing biomass boilers, biomass fuel is typically placed on a grating plate, and the ash from combustion automatically falls through the mesh of the grating plate. This can easily cause unburned biomass fuel to fall down, resulting in incomplete combustion and fuel waste.
[0004] To address the aforementioned issues, an automatic ash removal mechanism for biomass boilers is proposed. Utility Model Content
[0005] The purpose of this utility model is to solve at least one of the technical problems existing in the prior art, and to provide an automatic ash removal mechanism for biomass boilers that can solve the problems in the background art.
[0006] To achieve the above objectives, this utility model provides the following technical solution: an automatic ash removal mechanism for a biomass boiler, comprising a biomass boiler, wherein two guide plates are fixedly installed inside the biomass boiler, and a grid plate is fixedly installed on one side of the two guide plates opposite to each other. Two first rotating shafts are rotatably connected inside the biomass boiler, and the rotation of the two first rotating shafts passes through the biomass boiler and extends to the outside of the biomass boiler. A sealing plate is fixedly sleeved on each of the two first rotating shafts, and the two sealing plates are located at the bottom of the grid plate. A torsion spring is movably sleeved on each of the two first rotating shafts, and the ends of the two torsion springs near the two sealing plates are fixedly connected to the two sealing plates respectively, while the ends of the two torsion springs away from the two sealing plates are fixedly connected to the inner wall of the biomass boiler.
[0007] Preferably, a push rod motor is fixedly installed on one side of the biomass boiler, a lifting frame is fixedly installed at the output end of the push rod motor, two first racks are fixedly installed at the bottom of the lifting frame, and a first gear is fixedly sleeved on one end of each of the two first rotating shafts extending to the outside of the biomass boiler, with the two first gears meshing with the two first racks.
[0008] Preferably, the biomass boiler has a collection box that is slidably connected inside.
[0009] Preferably, the mesh plate is internally rotatably connected to a second rotating shaft, on which a cutting blade is fixedly installed. A second gear is fixedly installed at one end of the second rotating shaft that rotatably passes through the biomass boiler. A second rack is fixedly installed at the bottom of the lifting frame, and the second rack meshes with the second gear.
[0010] Preferably, a vibration box is fixedly installed on one side of the mesh plate, and a second rotating shaft rotates through the vibration box and extends into the interior of the vibration box. An eccentric wheel is fixedly installed on one end of the second rotating shaft.
[0011] Preferably, the vibration box has two fixed columns fixedly installed inside, and a lifting plate is slidably connected to the surface of the two fixed columns. Each of the two fixed columns is movably sleeved with a tension spring. The upper ends of the two tension springs are fixedly connected to the inside of the vibration box, and the lower ends of the two tension springs are fixedly connected to the lifting plate.
[0012] Preferably, a suspension rod is fixedly installed at the bottom of the lifting plate, an eccentric wheel is in contact with the suspension rod, and a striking ball is fixedly installed at the top of the lifting plate, with the upper end of the striking ball in contact with the inner wall of the vibration box.
[0013] Compared with the prior art, the beneficial effects of this utility model are:
[0014] (1) The automatic ash removal mechanism of the biomass boiler prevents the two sealing plates from blocking the bottom of the grid plate, thereby allowing the dust on the grid plate to fall from the internal mesh of the grid plate, thus cleaning the ash inside the biomass boiler, improving the convenience of dust cleaning, preventing unburned ash from falling, maximizing the degree of fuel combustion, and reducing fuel waste.
[0015] (2) The automatic ash removal mechanism of the biomass boiler resets the lifting plate and the rod by the tension of the tension spring, thereby causing the striking ball to strike the inner wall of the vibrating box, causing the vibrating box and the grid plate to vibrate, thereby shaking off the dust inside the grid plate, thus facilitating the cleaning of ash, improving the convenience of automatic ash cleaning, and reducing the accumulation of ash inside the biomass boiler.
[0016] (3) When the lifting frame moves downward, the automatic ash removal mechanism of the biomass boiler will cause the second rack to drive the second gear and the second rotating shaft to rotate, thereby causing the cutting blade to rotate with the second rotating shaft. The cutting blade will then crush the ash after combustion, making it easier for the ash to be discharged quickly from the inside of the grid plate, increasing the ash discharge speed and reducing the convenience of discharge. Attached Figure Description
[0017] The present invention will be further described below with reference to the accompanying drawings and embodiments:
[0018] Figure 1 This is a schematic diagram of the automatic ash removal mechanism for the biomass boiler of this utility model;
[0019] Figure 2 This utility model Figure 1 Enlarged view of point A in the middle;
[0020] Figure 3 This is a schematic diagram of the biomass boiler of this utility model;
[0021] Figure 4 This is a schematic diagram of the internal structure of the biomass boiler of this utility model;
[0022] Figure 5 This utility model Figure 4 Enlarged view of point B in the middle;
[0023] Figure 6 This is a schematic diagram of the internal structure of the vibration box of this utility model.
[0024] Reference numerals: 1. Biomass boiler; 2. Push rod motor; 3. Lifting frame; 4. First rack; 5. Second rack; 6. First gear; 7. First rotating shaft; 8. Second gear; 9. Second rotating shaft; 10. Collection box; 11. Guide plate; 12. Grid plate; 13. Vibration box; 14. Sealing plate; 15. Cutting blade; 16. Torsion spring; 17. Eccentric wheel; 18. Hanging rod; 19. Fixed column; 20. Tension spring; 21. Lifting plate; 22. Striking ball. Detailed Implementation
[0025] 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.
[0026] To further understand the content of this utility model, a detailed description of this utility model will be provided in conjunction with the accompanying drawings.
[0027] Please see Figure 1-6This utility model provides a technical solution: an automatic ash removal mechanism for a biomass boiler, comprising a biomass boiler 1. Two guide plates 11 are fixedly installed inside the biomass boiler 1. A grid plate 12 is fixedly installed on one side of the two guide plates 11 opposite to each other. Two first rotating shafts 7 are rotatably connected inside the biomass boiler 1. The rotation of the two first rotating shafts 7 passes through the biomass boiler 1 and extends to the outside of the biomass boiler 1. A sealing plate 14 is fixedly sleeved on each of the two first rotating shafts 7. The two sealing plates 14 are located at the bottom of the grid plate 12. A torsion bar is movably sleeved on each of the two first rotating shafts 7. Two torsion springs 16 are fixedly connected to the two sealing plates 14 at one end and respectively at the other end of the two torsion springs 16 away from the two sealing plates 14. A push rod motor 2 is fixedly installed on one side of the biomass boiler 1. A lifting frame 3 is fixedly installed at the output end of the push rod motor 2. Two first racks 4 are fixedly installed at the bottom of the lifting frame 3. Two first rotating shafts 7 are fixedly sleeved on the ends of the two shafts 7 extending to the outside of the biomass boiler 1. The two first gears 6 mesh with the two first racks 4.
[0028] Start the push rod motor 2, which drives the lifting frame 3 to move downward. This causes the two first racks 4 to move downward with the lifting frame 3. As they move downward, the two first racks 4 mesh with the two first gears 6, causing them to rotate. This, in turn, causes the two first rotating shafts 7 to rotate, and the two sealing plates 14 to rotate with them. This causes the two torsion springs 16 to deform, preventing the sealing plates 14 from obstructing the bottom of the grid plate 12. As a result, the dust on the grid plate 12 falls out through the internal mesh of the grid plate 12, thus cleaning the ash inside the biomass boiler 1. This improves the convenience of dust cleaning, prevents unburned ash from falling off, maximizes fuel combustion, and reduces fuel waste.
[0029] The biomass boiler 1 has a collection box 10 that is internally slidably connected.
[0030] The collection box 10 facilitates the collection of ash after combustion, making it easier to process.
[0031] The inside of the grid plate 12 is rotatably connected to a second rotating shaft 9. A cutting blade 15 is fixedly installed on the second rotating shaft 9. A second gear 8 is fixedly installed at one end of the second rotating shaft 9 that rotatably passes through the biomass boiler 1. A second rack 5 is fixedly installed at the bottom of the lifting frame 3. The second rack 5 is meshed with the second gear 8.
[0032] When the lifting frame 3 moves downward, the second rack 5 will drive the second gear 8 and the second rotating shaft 9 to rotate, which in turn causes the cutting blade 15 to rotate with the second rotating shaft 9. The cutting blade 15 then crushes the ash after combustion, which facilitates the rapid discharge of ash from the inside of the grid plate 12, increases the speed of ash discharge, and reduces the convenience of discharge.
[0033] A vibration box 13 is fixedly installed on one side of the grid plate 12. The second rotating shaft 9 rotates through the vibration box 13 and extends into the interior of the vibration box 13. An eccentric wheel 17 is fixedly installed on one end of the second rotating shaft 9. Two fixed columns 19 are fixedly installed inside the vibration box 13. A lifting plate 21 is slidably connected to the surface of the two fixed columns 19. A tension spring 20 is movably sleeved on each of the two fixed columns 19. The upper ends of the two tension springs 20 are fixedly connected to the interior of the vibration box 13, and the lower ends of the two tension springs 20 are fixedly connected to the lifting plate 21. A hanging rod 18 is fixedly installed at the bottom of the lifting plate 21. The eccentric wheel 17 contacts the hanging rod 18. A striking ball 22 is fixedly installed at the top of the lifting plate 21. The upper end of the striking ball 22 contacts the inner wall of the vibration box 13.
[0034] When the second rotating shaft 9 rotates, it drives the eccentric wheel 17 to rotate, which in turn causes the eccentric wheel 17 to press against the boom 18. This causes the lifting plate 21 to slide on the two fixed columns 19 and stretch the two tension springs 20, thus preventing the striking ball 22 from contacting the inner wall of the vibration box 13. As the second rotating shaft 9 and the eccentric wheel 17 continue to rotate, the eccentric wheel 17 stops pressing against the boom 18, causing the lifting plate 21 and the boom 18 to reset under the tension of the tension springs 20. This causes the striking ball 22 to strike the inner wall of the vibration box 13, causing the vibration box 13 and the grid plate 12 to vibrate. This causes the dust inside the grid plate 12 to fall off, making it easier to clean the ash, improving the convenience of automatic ash cleaning, and reducing the accumulation of ash inside the biomass boiler 1.
[0035] Working principle:
[0036] Start the push rod motor 2, which drives the lifting frame 3 to move downward. This causes the two first racks 4 to move downward with the lifting frame 3. As they move downward, the two first racks 4 mesh with the two first gears 6, causing the two first racks 4 to drive the two first gears 6 to rotate. This causes the two first rotating shafts 7 to rotate, and the two sealing plates 14 to rotate with the two first rotating shafts 7. This causes the two torsion springs 16 to deform, preventing the two sealing plates 14 from blocking the bottom of the grid plate 12. As a result, the dust on the grid plate 12 falls out from the internal mesh of the grid plate 12, thus cleaning the ash inside the biomass boiler 1.
[0037] When the lifting frame 3 moves downward, the second rack 5 drives the second gear 8 and the second rotating shaft 9 to rotate, which in turn causes the cutting blade 15 to rotate with the second rotating shaft 9. The cutting blade 15 then crushes the ash after combustion, making it easier for the ash to be discharged quickly from the inside of the grid plate 12. When the second rotating shaft 9 rotates, it drives the eccentric wheel 17 to rotate, which in turn causes the eccentric wheel 17 to press against the hanging rod 18. This causes the lifting plate 21 to slide on the two fixed columns 19 and stretch the two tension springs 20, thus preventing the striking ball 22 from contacting the inner wall of the vibration box 13. As the second rotating shaft 9 and the eccentric wheel 17 continue to rotate, the eccentric wheel 17 stops pressing against the hanging rod 18, and the lifting plate 21 and the hanging rod 18 are reset by the tension of the tension springs 20. This causes the striking ball 22 to strike the inner wall of the vibration box 13, causing the vibration box 13 and the grid plate 12 to vibrate, thus shaking off the dust inside the grid plate 12.
[0038] 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. An automatic ash removal mechanism for a biomass boiler, comprising a biomass boiler (1), characterized in that: The biomass boiler (1) has two guide plates (11) fixedly installed inside. A grid plate (12) is fixedly installed on one side of the two guide plates (11) opposite to each other. The biomass boiler (1) has two first rotating shafts (7) rotatably connected inside. The rotation of the two first rotating shafts (7) passes through the biomass boiler (1) and extends to the outside of the biomass boiler (1). A sealing plate (14) is fixedly sleeved on each of the two first rotating shafts (7). The two sealing plates (14) are located at the bottom of the grid plate (12). Torsion springs (16) are movably sleeved on each of the two first rotating shafts (7). The ends of the two torsion springs (16) close to the two sealing plates (14) are fixedly connected to the two sealing plates (14) respectively. The ends of the two torsion springs (16) away from the two sealing plates (14) are fixedly connected to the inner wall of the biomass boiler (1).
2. The automatic ash removal mechanism for biomass boilers according to claim 1, characterized in that: A push rod motor (2) is fixedly installed on one side of the biomass boiler (1). A lifting frame (3) is fixedly installed at the output end of the push rod motor (2). Two first racks (4) are fixedly installed at the bottom of the lifting frame (3). Two first rotating shafts (7) are fixedly fitted with first gears (6) at one end extending to the outside of the biomass boiler (1). The two first gears (6) mesh with the two first racks (4).
3. The automatic ash removal mechanism for biomass boilers according to claim 2, characterized in that: The biomass boiler (1) has a collection box (10) that is slidably connected inside.
4. The automatic ash removal mechanism for biomass boilers according to claim 3, characterized in that: The mesh plate (12) is internally connected to a second rotating shaft (9), on which a cutting blade (15) is fixedly installed. The second rotating shaft (9) rotates through one end of the biomass boiler (1) and is fixedly installed with a second gear (8). The bottom of the lifting frame (3) is fixedly installed with a second rack (5), which meshes with the second gear (8).
5. The automatic ash removal mechanism for biomass boilers according to claim 4, characterized in that: A vibration box (13) is fixedly installed on one side of the grid plate (12). The second rotating shaft (9) rotates through the vibration box (13) and extends into the interior of the vibration box (13). An eccentric wheel (17) is fixedly installed on one end of the second rotating shaft (9).
6. The automatic ash removal mechanism for biomass boilers according to claim 5, characterized in that: The vibration box (13) has two fixed columns (19) installed inside. A lifting plate (21) is slidably connected to the surface of the two fixed columns (19). A tension spring (20) is movably sleeved on each of the two fixed columns (19). The upper ends of the two tension springs (20) are fixedly connected to the inside of the vibration box (13), and the lower ends of the two tension springs (20) are fixedly connected to the lifting plate (21).
7. The automatic ash removal mechanism for biomass boilers according to claim 6, characterized in that: A lifting rod (18) is fixedly installed at the bottom of the lifting plate (21), and an eccentric wheel (17) contacts the lifting rod (18). A striking ball (22) is fixedly installed at the top of the lifting plate (21), and the upper end of the striking ball (22) contacts the inner wall of the vibration box (13).