A biomass fuel forming device

Abstract

The utility model relates to forming device technical field, especially a kind of biomass fuel forming device, including rack, the inside fixed connection of rack has speed reducer, the top fixed connection of rack has bottom cylinder, the inner wall rotationally connected of bottom cylinder has driving rod, the bottom end of driving rod is fixedly connected with the output end of speed reducer.The utility model has the advantages that scraper is slidably connected with frame by transmission rod, and the spring provided on transmission rod provides upward tension, so that scraper top surface is always attached to the bottom surface of forming disc.When scraper is worn due to scraping forming disc, spring will push transmission rod to move upward, automatically compensate the wear of scraper, keep the close contact between scraper and forming disc, avoid the gap due to wear.This elastic compensation design can effectively prolong the service life of scraper, ensure that the molding fuel is completely cut off, reduce fuel residue, maintain the molding quality and operating efficiency of equipment.

Description

Technical Field

[0001] This utility model relates to the field of molding device technology, and in particular to a biomass fuel molding device. Background Technology

[0002] A biomass fuel pelletizing device is a specialized piece of equipment that transforms loose biomass raw materials such as agricultural and forestry waste and industrial organic waste into solid fuels with specific shapes, densities, and combustion properties through processes such as physical compression or heat curing. Its core function is to process biomass materials that are originally loose in volume and difficult to utilize efficiently into shaped fuels, such as pellets, rods, or blocks, through mechanical extrusion, mold shaping, and other methods.

[0003] Current biomass fuel briquetting equipment generally uses a fixed-installation scraper structure to break and separate the briquetting fuel. However, this design has revealed significant drawbacks in long-term use. The top of the fixed-installation scraper inside the device is in direct contact with the bottom surface of the briquetting disc. During the fuel demolding process, the scraper needs to continuously scrape the surface of the briquetting disc to cut off any adhering or excessively long fuel. Due to the complex composition of biomass raw materials, the presence of hard particles or high-fiber materials exacerbates the wear between the scraper and the briquetting disc. With increased use, the top of the scraper gradually shows signs of wear, such as indentation and thinning. Once the scraper wears down, gaps will form between it and the briquetting disc, preventing the briquetting fuel from being completely cut off. Some fuel will remain on the surface of the briquetting disc, affecting subsequent briquetting quality and equipment operating efficiency. Utility Model Content

[0004] The purpose of this invention is to at least solve one of the aforementioned technical defects.

[0005] Therefore, one objective of this utility model is to provide a biomass fuel molding device to solve the problems mentioned in the background art and overcome the shortcomings of the existing technology.

[0006] To achieve the above objectives, one embodiment of this utility model provides a biomass fuel molding device, including a frame, a reducer fixedly connected inside the frame, a bottom cylinder fixedly connected to the top of the frame, a drive rod rotatably connected to the inner wall of the bottom cylinder, the bottom end of the drive rod being fixedly connected to the output end of the reducer, a motor fixedly connected to the side of the frame, the output end of the motor being fixedly connected to the input end of the reducer, a feed cylinder fixedly mounted to the top of the bottom cylinder by bolts, the drive rod being located inside the feed cylinder, a crossbar fixedly connected inside the feed cylinder, and two pressure rollers rotatably connected to the outer surface of the crossbar via bearings. A forming disc is fixedly mounted on the top of the drive rod by bolts. The forming disc is rotatably connected to the feed cylinder. A connecting ring is rotatably connected to the outer surface of the drive rod. Two symmetrically arranged connecting plates are fixedly connected to the outer surface of the connecting ring. A frame is fixedly connected to the end of each connecting plate away from the connecting ring. Two symmetrically arranged springs are fixedly connected to the inner wall of each frame. A base plate is fixedly connected to the bottom end of the two springs. Two symmetrically arranged transmission rods are fixedly connected to the top surface of the base plate. Both transmission rods are slidably connected to the frame. A scraper is fixedly connected to the top end of the two transmission rods. The top surface of the scraper is in contact with the bottom surface of the forming disc.

[0007] Preferably, in any of the above embodiments, a blocking ring is fixedly connected to the outer surface of the drive rod, and the top surface of the blocking ring is in contact with the bottom surface of the connecting ring.

[0008] Preferably, in any of the above embodiments, the outer surface of the feed cylinder is rotatably connected to two symmetrical locking bolts, both of which penetrate the feed cylinder and are threadedly connected to the two frames respectively.

[0009] Preferably, as described in any of the above embodiments, the bottom cylinder has discharge ports at the top and the bottom of the feed cylinder, and the outer surface of the bottom cylinder is fixedly connected to a discharge frame, with both discharge ports corresponding to the discharge frame.

[0010] Preferably, in any of the above solutions, the top surface of the frame is fixedly connected to two symmetrically arranged guide holes, and both transmission rods are slidably connected to the frame through the guide holes.

[0011] Preferably, in any of the above embodiments, guide plates are fixedly connected to both the front and rear sides of the scraper, and both guide plates are parallel to the frame.

[0012] Preferably, in any of the above embodiments, a corrugated hose is fixedly connected to the bottom of the two guide plates, and the bottom of the corrugated hose is fixedly connected to the frame.

[0013] Compared with the prior art, the advantages and beneficial effects of this utility model are as follows:

[0014] 1. The elastic connection structure between the spring and the transmission rod solves the problem of wear gaps caused by long-term use of the scraper. The scraper is slidably connected to the frame via the transmission rod, and the spring fitted on the transmission rod provides an upward clamping force, ensuring that the top surface of the scraper is always in contact with the bottom surface of the forming disc. When the scraper wears due to scraping the forming disc, the spring pushes the transmission rod upward, automatically compensating for the wear of the scraper and maintaining close contact between the scraper and the forming disc, preventing gaps caused by wear. This elastic compensation design effectively extends the service life of the scraper, ensures that the forming fuel is completely cut off, reduces fuel residue, and maintains the forming quality and operating efficiency of the equipment. At the same time, the elastic buffering effect of the spring also reduces the rigid friction between the scraper and the forming disc, slowing down the wear rate of the components.

[0015] 2. The rotating fit between the drive rod and the connecting ring, along with the adjustable locking bolt design, enables convenient adjustment and precise positioning of the scraper. The connecting ring is sleeved on the outer surface of the drive rod and fits against the retaining ring. The locking bolt, threaded through the feed cylinder and connected to the frame, secures the frame to the feed cylinder. When adjusting the contact force between the scraper and the forming disc, or when replacing the scraper, simply loosen the locking bolt. This allows the connecting ring to move up and down along the drive rod, moving the frame and scraper synchronously. After adjusting to the appropriate position, tighten the locking bolt to secure it. This design not only facilitates timely adjustment of the scraper's position based on wear but also allows for quick disassembly and assembly of the scraper during equipment installation or maintenance, improving maintainability. Furthermore, the retaining ring restricts the downward movement of the connecting ring, ensuring moderate contact force between the scraper and the forming disc and preventing damage to the scraper or forming disc due to excessive pressure. Attached Figure Description

[0016] Figure 1 This is a first-view structural diagram of the assembly of this utility model;

[0017] Figure 2 This is a second-view structural diagram of the assembly of this utility model;

[0018] Figure 3 This is a schematic diagram of the frame structure of this utility model;

[0019] Figure 4 This is a schematic diagram of the structure of the feed cylinder of this utility model;

[0020] Figure 5 This is a schematic diagram of the structure of the frame of this utility model;

[0021] Figure 6 This is a cross-sectional structural diagram of the frame of this utility model.

[0022] In the diagram: 1-Frame, 2-Reducer, 3-Bottom cylinder, 4-Drive rod, 5-Motor, 6-Feed cylinder, 7-Crossbar, 8-Pressure roller, 9-Forming disc, 10-Connecting ring, 11-Connecting plate, 12-Frame, 13-Spring, 14-Bottom plate, 15-Transmission rod, 16-Scraper, 17-Blocking ring, 18-Locking bolt, 19-Discharge port, 20-Discharge frame, 21-Guide hole, 22-Guide plate, 23-Corrugated hose. Detailed Implementation

[0023] The present invention will be further described below with reference to the accompanying drawings, but the scope of protection of the present invention is not limited thereto.

[0024] like Figures 1 to 6 As shown, a biomass fuel molding device includes a frame 1, a reducer 2 fixedly connected inside the frame 1, a bottom cylinder 3 fixedly connected to the top of the frame 1, a drive rod 4 rotatably connected to the inner wall of the bottom cylinder 3, the bottom end of the drive rod 4 fixedly connected to the output end of the reducer 2, a motor 5 fixedly connected to the side of the frame 1, the output end of the motor 5 fixedly connected to the input end of the reducer 2, a feed cylinder 6 fixedly installed at the top of the bottom cylinder 3 by bolts, the drive rod 4 located inside the feed cylinder 6, a crossbar 7 fixedly connected inside the feed cylinder 6, two pressure rollers 8 rotatably connected to the outer surface of the crossbar 7 via bearings, and a molding disc 9 fixedly installed at the top of the drive rod 4 by bolts. The forming disc 9 is rotatably connected to the feeding cylinder 6. A connecting ring 10 is rotatably connected to the outer surface of the drive rod 4. Two symmetrically arranged connecting plates 11 are fixedly connected to the outer surface of the connecting ring 10. A frame 12 is fixedly connected to the end of each connecting plate 11 away from the connecting ring 10. Two symmetrically arranged springs 13 are fixedly connected to the inner wall of each frame 12. A base plate 14 is fixedly connected to the bottom end of the two springs 13. Two symmetrically arranged transmission rods 15 are fixedly connected to the top surface of the base plate 14. Both transmission rods 15 are slidably connected to the frame 12. A scraper 16 is fixedly connected to the top end of the two transmission rods 15. The top surface of the scraper 16 is in contact with the bottom surface of the forming disc 9.

[0025] As an optional technical solution of this utility model, a blocking ring 17 is fixedly connected to the outer surface of the drive rod 4. The top surface of the blocking ring 17 is in contact with the bottom surface of the connecting ring 10. When the connecting ring 10 moves downward along the drive rod 4, the blocking ring 17 can prevent it from moving too far downward, ensuring that the frame 12 and scraper 16 driven by the connecting ring 10 maintain a suitable contact force with the forming disc 9, avoiding damage to the scraper 16 or the forming disc 9 due to excessive pressure. At the same time, it provides a positioning reference for the installation of the connecting ring 10, ensuring the accuracy of the installation position of the scraper 16.

[0026] As an optional technical solution of this utility model, the outer surface of the feed cylinder 6 is rotatably connected with two symmetrical locking bolts 18. Both locking bolts 18 penetrate the feed cylinder 6 and are threadedly connected to the two frames 12 respectively. When the locking bolts 18 are loosened, the frames 12 can move up and down along the drive rod 4, which is convenient for adjusting the fit between the scraper 16 and the forming disc 9 or replacing the scraper 16. Tightening the locking bolts 18 can firmly fix the frames 12, ensuring that the scraper 16 will not be displaced due to vibration or other factors during operation, ensuring the cutting effect of the scraper 16 on the formed fuel, and also facilitating the maintenance and debugging of the equipment.

[0027] As an optional technical solution of this utility model, discharge ports 19 are provided at the top of the bottom cylinder 3 and the bottom of the feeding cylinder 6. A discharge frame 20 is fixedly connected to the outer surface of the bottom cylinder 3. The two discharge ports 19 correspond to the discharge frame 20. The molten fuel falls from the discharge port 19 at the bottom of the feeding cylinder 6, enters the discharge frame 20 through the discharge port 19 at the top of the bottom cylinder 3, and is then discharged from the discharge frame 20. This design ensures a smooth discharge path, avoids fuel accumulation inside the equipment, improves the discharge efficiency of the biomass fuel molting device, and also facilitates the collection and subsequent processing of the discharged fuel.

[0028] As an optional technical solution of this utility model, the top surface of the frame 12 is fixedly connected with two symmetrically arranged guide holes 21. Both transmission rods 15 are slidably connected to the frame 12 through the guide holes 21. When the transmission rods 15 slide up and down in the frame 12, the guide holes 21 can prevent them from shifting or tilting, ensuring that the scraper 16 driven by the transmission rods 15 moves smoothly, so that the scraper 16 always maintains a good fit with the bottom surface of the forming disc 9, thereby ensuring the cutting effect of the scraper 16 on the formed fuel, and also improving the stability and reliability of the movement of the transmission rods 15.

[0029] As an optional technical solution of this utility model, guide plates 22 are fixedly connected to both the front and rear sides of the scraper 16. Both guide plates 22 are parallel to the frame 12. When the shaped fuel is cut by the scraper 16, the guide plates 22 can guide the fuel to flow to both sides, avoid the fuel from accumulating near the scraper 16, ensure the fuel is discharged smoothly, and at the same time reduce the impact and wear of the fuel on the scraper 16, thus extending the service life of the scraper 16. In addition, the guide plates 22 can also improve the orderliness of the shaped fuel discharge to a certain extent.

[0030] As an optional technical solution of this utility model, a corrugated hose 23 is fixedly connected to the bottom of the two guide plates 22. The bottom of the corrugated hose 23 is fixedly connected to the frame 12. The corrugated hose 23 has a certain degree of flexibility, which can adapt to the position change of the guide plate 22 when it moves with the scraper 16. At the same time, it can prevent fuel from leaking out from the gap between the guide plate 22 and the frame 12, ensuring that the fuel is smoothly discharged along the guide plate 22. In addition, the corrugated hose 23 can also buffer the impact of fuel on the guide plate 22 to a certain extent, improving the working stability of the guide plate 22.

[0031] A biomass fuel briquetting device, the working principle of which is as follows:

[0032] 1) The scraper 16 is slidably connected to the frame 12 via the transmission rod 15, and the spring 13 mounted on the transmission rod 15 provides an upward clamping force so that the top surface of the scraper 16 is always in contact with the bottom surface of the forming disc 9.

[0033] 2): When the scraper 16 wears down due to scraping the forming disc 9, the spring 13 will push the transmission rod 15 to move upward, automatically compensating for the wear of the scraper 16, maintaining close contact between the scraper 16 and the forming disc 9, and avoiding gaps caused by wear.

[0034] 3): The connecting ring 10 is sleeved on the outer surface of the drive rod 4 and fits against the blocking ring 17. It is threaded to the frame 12 through the feed cylinder 6 by the locking bolt 18, so that the frame 12 can be fixed on the feed cylinder 6.

[0035] In summary, in this biomass fuel molding device, the scraper 16 is slidably connected to the frame 12 via the transmission rod 15, and the spring 13 fitted on the transmission rod 15 provides an upward clamping force, ensuring that the top surface of the scraper 16 is always in contact with the bottom surface of the molding disc 9. When the scraper 16 wears down due to scraping the molding disc 9, the spring 13 pushes the transmission rod 15 upward, automatically compensating for the wear of the scraper 16 and maintaining close contact between the scraper 16 and the molding disc 9, preventing gaps caused by wear. This elastic compensation design effectively extends the service life of the scraper 16, ensures that the molded fuel is completely cut off, reduces fuel residue, and maintains the molding quality and operating efficiency of the equipment. At the same time, the elastic buffering effect of the spring 13 also reduces the rigid friction between the scraper 16 and the molding disc 9, reducing the wear rate of components. The rotational engagement of the drive rod and the connecting ring, as well as the adjustment design of the locking bolt, enable convenient adjustment and precise positioning of the scraper position. The connecting ring 10 is sleeved on the outer surface of the drive rod 4 and fits against the blocking ring 17. It is threadedly connected to the frame 12 via a locking bolt 18 that passes through the feed cylinder 6, thus fixing the frame 12 onto the feed cylinder 6. When it is necessary to adjust the contact force between the scraper 16 and the forming disc 9, or to replace the scraper 16, simply loosen the locking bolt 18. This allows the connecting ring 10 to move up and down along the drive rod 4, causing the frame 12 and scraper 16 to move synchronously. After adjusting to the appropriate position, the locking bolt 18 is tightened to secure it. This design not only facilitates timely adjustment of the scraper 16's position based on its wear condition but also allows for quick disassembly and assembly of the scraper 16 during equipment installation or maintenance, improving the maintainability of the equipment. Furthermore, the blocking ring 17 restricts the downward movement of the connecting ring 10, ensuring that the contact force between the scraper 16 and the forming disc 9 is moderate, preventing damage to the scraper 16 or the forming disc 9 due to excessive pressure.

Claims

1. A biomass fuel pelletizing device, characterized in that: The system includes a frame (1), a reducer (2) fixedly connected inside the frame (1), a bottom cylinder (3) fixedly connected to the top of the frame (1), a drive rod (4) rotatably connected to the inner wall of the bottom cylinder (3), the bottom end of the drive rod (4) fixedly connected to the output end of the reducer (2), a motor (5) fixedly connected to the side of the frame (1), the output end of the motor (5) fixedly connected to the input end of the reducer (2), a feed cylinder (6) fixedly installed at the top of the bottom cylinder (3) by bolts, the drive rod (4) located inside the feed cylinder (6), a crossbar (7) fixedly connected inside the feed cylinder (6), two pressure rollers (8) rotatably connected to the outer surface of the crossbar (7) by bearings, and a forming disc (9) fixedly installed at the top of the drive rod (4) by bolts. The disc (9) is rotatably connected to the feed cylinder (6). A connecting ring (10) is rotatably connected to the outer surface of the drive rod (4). Two symmetrically arranged connecting plates (11) are fixedly connected to the outer surface of the connecting ring (10). A frame (12) is fixedly connected to the end of each connecting plate (11) away from the connecting ring (10). Two symmetrically arranged springs (13) are fixedly connected to the inner wall of each frame (12). A base plate (14) is fixedly connected to the bottom end of the two springs (13). Two symmetrically arranged transmission rods (15) are fixedly connected to the top surface of the base plate (14). Both transmission rods (15) are slidably connected to the frame (12). A scraper (16) is fixedly connected to the top end of the two transmission rods (15). The top surface of the scraper (16) is in contact with the bottom surface of the forming disc (9).

2. The biomass fuel pelletizing device according to claim 1, characterized in that: A blocking ring (17) is fixedly connected to the outer surface of the drive rod (4), and the top surface of the blocking ring (17) is in contact with the bottom surface of the connecting ring (10).

3. The biomass fuel molding device according to claim 2, characterized in that: The outer surface of the feed cylinder (6) is rotatably connected to two symmetrical locking bolts (18), and both locking bolts (18) penetrate the feed cylinder (6) and are threadedly connected to the two frames (12) respectively.

4. A biomass fuel molding device according to claim 3, characterized in that: The bottom cylinder (3) and the bottom of the feed cylinder (6) are provided with discharge ports (19). The outer surface of the bottom cylinder (3) is fixedly connected with a discharge frame (20), and the two discharge ports (19) are corresponding to the discharge frame (20).

5. A biomass fuel pelletizing device according to claim 4, characterized in that: The top surface of the frame (12) is fixedly connected to two symmetrically arranged guide holes (21), and the two transmission rods (15) are slidably connected to the frame (12) through the guide holes (21).

6. A biomass fuel pelletizing device according to claim 5, characterized in that: The scraper (16) is fixedly connected to both the front and rear sides with guide plates (22), and both guide plates (22) are parallel to the frame (12).

7. A biomass fuel pelletizing device according to claim 6, characterized in that: The bottom of the two guide plates (22) is fixedly connected to a corrugated hose (23), and the bottom of the corrugated hose (23) is fixedly connected to the frame (12).

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