A biomass fuel compression pellet mill

Abstract

This invention belongs to the field of pellet mill technology, specifically relating to a biomass fuel compression pellet mill, including a base and a drive mechanism mounted on the base. The drive mechanism has an output shaft and a hopper. It also includes a pressure roller assembly, which includes a strip frame fixedly mounted on the output shaft. A pressure roller shaft is eccentrically mounted on the strip frame, and a pressure roller is fixedly mounted on the pressure roller shaft. A ring die is fixedly mounted inside the hopper and sleeved on the pressure roller. In this biomass fuel compression pellet mill, the output shaft drives the pressure roller to revolve, while a coaxial forward / reverse mechanism, in conjunction with a rotating connection mechanism, drives the pressure roller shaft to actively rotate. After the adjustment mechanism adjusts the gap between the pressure roller and the ring die, even if the distance between the pressure roller shaft and the sleeve changes, the two connecting rods in the rotating connection mechanism can flexibly swing around the sleeve and the pressure roller shaft, causing the connecting gear on the movable shaft to adaptively adjust its position, always maintaining stable meshing with the driving gear and the driven gear.

Description

Technical Field

[0001] This invention belongs to the field of pellet mill technology, specifically relating to a biomass fuel compression pellet mill. Background Technology

[0002] Biomass fuel compression pelletizers are core forming equipment in the field of biomass energy resource utilization. They are mainly used to convert loose biomass waste such as straw, sawdust, rice husks, branches, and mushroom residue into standardized pellet fuel with high density and stable calorific value. During operation, the pre-treated (crushed and dried to a suitable moisture content) biomass raw materials are first transported to the pelleting chamber. Through the relative movement of the pressure roller driven by the motor and the ring die (or flat die), high-intensity mechanical extrusion force is applied to the raw materials. At the same time, the frictional heat generated during the extrusion process softens the lignin in the raw materials and plays a binding role, ultimately compressing the loose raw materials into dense, regularly shaped columnar pellets.

[0003] Traditional pellet mills rely on the friction between the inner wall of the ring die and the surface of the roller to achieve passive rotation. When the material supply in the hopper is insufficient or the raw material viscosity is low (such as dried sawdust or lightweight straw fragments), the roller is prone to slipping relative to the ring die. This not only causes the roller to stop rotating and the raw material to be unable to be fully squeezed into the ring die pelleting hole, resulting in a significant decrease in pellet formation rate, but also causes the raw material to carbonize and stick to the ring die hole due to the local frictional heat generated by slippage, leading to blockage of the pelleting hole and aggravating uneven wear of the roller die components. In order to solve the problem of roller slippage, some improved equipment has added an independent drive mechanism to the roller to achieve active roller pressing. Although it can ensure continuous rotation of the roller, the transmission link of this type of structure is rigidly connected to the roller mounting base, which cannot flexibly adjust the distance between the roller and the ring die, making it difficult to adapt to biomass raw materials with different hardness and moisture content. Summary of the Invention

[0004] The purpose of this invention is to provide a biomass fuel compression pellet mill that is adapted to the autonomous rotation of the pressure rollers and the adjustment of the roller die spacing in order to solve the above-mentioned problems.

[0005] The present invention achieves the above objectives through the following technical solutions:

[0006] A biomass fuel compression pellet mill includes a base and a drive mechanism mounted on the base. The drive mechanism is provided with an output shaft and a hopper.

[0007] It also includes:

[0008] The pressure roller assembly includes a strip frame fixedly mounted on an output shaft, an eccentrically rotatable pressure roller shaft mounted on the strip frame, a pressure roller fixedly mounted on the pressure roller shaft, a ring die sleeved on the pressure roller fixedly mounted inside the hopper, and a cutter rotatably mounted inside the hopper.

[0009] The adjustment mechanism includes a bidirectional cam rotatably disposed within a bar frame, and an adjustment rod slidably disposed through the bidirectional cam;

[0010] A coaxial forward and reverse rotation mechanism, wherein the coaxial forward and reverse rotation mechanism includes a sleeve rotatably mounted on the output shaft;

[0011] A rotating connection mechanism is provided between the output shaft and the pressure roller shaft via a coaxial forward and reverse rotation mechanism.

[0012] As a further optimization of the present invention, the pressure roller assembly further includes a base plate fixedly mounted on the output shaft, an eccentric sleeve symmetrically rotatably mounted on both the base plate and the strip frame, the pressure roller shaft rotatably mounted on the eccentric sleeve, and a frame cover fixedly mounted on the strip frame.

[0013] As a further optimization of the present invention, a cam is fixedly provided on the eccentric sleeve located on the bar frame, and a connecting rod is hinged between the cam and the bidirectional cam.

[0014] As a further optimization of the present invention, the adjusting rod is provided with a threaded groove, and the adjusting rod is threadedly mounted on the cover through the threaded groove. The adjusting rod is also provided with a spline, and the adjusting rod is slidably mounted on the bidirectional cam through the spline.

[0015] As a further optimization of the present invention, the hopper includes a material tray, a feeding hood is fixedly installed on the material tray, a flange seat is fixedly installed at the lower end of the material tray, a horizontal plate is installed inside the flange seat, a cutting disc is rotatably installed inside the material tray, and a cutter is fixedly installed on the cutting disc.

[0016] As a further optimization of the present invention, a bevel gear 1 is fixedly provided on both the sleeve and the output shaft, and a bevel gear 2 is rotatably provided on the horizontal plate, wherein the bevel gear 2 meshes with the two bevel gears 1 respectively.

[0017] As a further optimization of the present invention, the rotating connection mechanism includes a driving gear, which is fixedly mounted on the sleeve. A driven gear is fixedly mounted on the pressure roller shaft. A connecting rod is rotatably mounted on both the pressure roller shaft and the sleeve. A movable shaft is rotatably mounted between the two connecting rods. A connecting gear is fixedly mounted on the movable shaft. The connecting gear meshes with the driven gear and the driving gear respectively.

[0018] As a further optimization of the present invention, the driving mechanism includes a gearbox, which is fixedly mounted on a base. A drive motor is fixedly mounted on the base. The output end of the drive motor is connected to the gearbox. The output end of the gearbox is connected to an output shaft. A bearing seat is fixedly mounted on the gearbox. The bearing seat is sleeved on the output shaft. The flange seat is connected to the bearing seat.

[0019] As a further optimization of the present invention, a servo motor is fixedly installed on the material tray, and an output gear is fixedly installed after the output end of the servo motor passes through the material tray. A gear ring is fixedly installed on the lower surface of the cutting tray, and the output gear meshes with the gear ring.

[0020] The beneficial effects of this invention are as follows:

[0021] 1. Unlike existing technologies, in actual use, the output shaft drives the pressure roller to revolve, while the coaxial forward and reverse mechanism, together with the rotating connection mechanism, drives the pressure roller shaft to actively rotate. This driving method does not rely on the friction between the material and the roller mold. Even under conditions of insufficient material supply and low raw material viscosity, it can ensure the continuous and stable rotation of the pressure roller, effectively preventing slippage.

[0022] 2. Unlike existing technologies, in actual use, after the adjustment mechanism adjusts the gap between the pressure roller and the ring die, even if the distance between the pressure roller shaft and the sleeve changes, the two connecting rods in the rotating connection mechanism can swing flexibly around the sleeve and the pressure roller shaft, driving the connecting gear on the movable shaft to adaptively adjust its position, always maintaining stable meshing with the driving gear and the driven gear, ensuring uninterrupted transmission, ensuring the continuous rotation of the pressure roller, and realizing the coordinated operation of active drive and gap adjustment. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0024] Figure 2 This is the present invention. Figure 1 Explosion structure diagram;

[0025] Figure 3 This is a schematic diagram of the material tray position structure of the present invention;

[0026] Figure 4 This is a partial cross-sectional structural diagram of the flange seat of the present invention;

[0027] Figure 5 This is the present invention. Figure 4 Enlarged structural diagram at point A in the middle;

[0028] Figure 6 This is an exploded structural diagram of the pressure roller assembly of the present invention;

[0029] Figure 7 This is the present invention. Figure 6 Enlarged structural diagram at point B;

[0030] Figure 8 This is a schematic diagram of the cutting disc structure of the present invention;

[0031] Figure 9 This is a schematic diagram of the bidirectional cam and adjusting rod structure of the present invention.

[0032] In the diagram: 1. Base; 2. Drive mechanism; 21. Gearbox; 22. Bearing housing; 23. Drive motor; 3. Hopper; 31. Material tray; 32. Feed hood; 33. Flange seat; 331. Horizontal plate; 4. Output shaft; 5. Pressure roller assembly; 51. Base plate; 52. Pressure roller; 521. Pressure roller shaft; 53. Strip frame; 531. Frame cover; 6. Coaxial forward and reverse rotation mechanism; 61. Sleeve; 62. Bevel gear one; 6 3. Bevel gear II; 7. Rotary connecting mechanism; 71. Driving gear; 72. Connecting gear; 721. Movable shaft; 73. Driven gear; 74. Connecting rod I; 8. Eccentric sleeve; 9. Adjusting mechanism; 91. Bidirectional cam; 92. Cam; 93. Connecting rod II; 94. Adjusting rod; 10. Cutting disc; 101. Cutter; 102. Gear ring; 11. Servo motor; 111. Output gear; 12. Ring die. Detailed Implementation

[0033] The present application will now be described in further detail with reference to the accompanying drawings. It should be noted that the following specific embodiments are only used to further illustrate the present application and should not be construed as limiting the scope of protection of the present application. Those skilled in the art can make some non-essential improvements and adjustments to the present application based on the above application content.

[0034] Example 1, such as Figure 1 - Figure 2 As shown, a biomass fuel compression pellet mill includes a base 1 and a drive mechanism 2 mounted on the base 1. A hopper 3 is mounted on the drive mechanism 2. The drive mechanism 2 includes a gearbox 21, which is fixedly mounted on the base 1. A drive motor 23 is fixedly mounted on the base 1, and its output end is connected to the gearbox 21. An output shaft 4 is connected to the output end of the gearbox 21. A bearing seat 22 is fixedly mounted on the gearbox 21 and fitted onto the output shaft 4. The base 1 provides stable support for the entire device, preventing overall shaking during operation. The drive motor 23, in cooperation with the gearbox 21, can achieve stable speed changes according to pelletizing requirements, ensuring that the output shaft 4 transmits power at a suitable speed. The bearing seat 22, fitted onto the output shaft 4, provides radial positioning and axial support, effectively reducing radial runout during operation and ensuring stable power transmission. The hopper 3, mounted on the drive mechanism 2, enables centralized storage and supply of raw materials, providing a continuous source of raw materials for subsequent pelletizing processes.

[0035] like Figure 3 - Figure 4 and Figure 8 As shown, the hopper 3 includes a material tray 31 with a discharge port. A feed hood 32 is fixedly mounted on the material tray 31. A flange seat 33 is fixedly mounted at the lower end of the material tray 31, and the flange seat 33 is connected to the bearing seat 22. A horizontal plate 331 is installed inside the flange seat 33. A cutting disc 10 is rotatably mounted inside the material tray 31, and a cutter 101 is mounted on the cutting disc 10. A servo motor 11 is fixedly mounted on the material tray 31. An output gear 111 is fixedly mounted after the output end of the servo motor 11 passes through the material tray 31. A gear ring 102 is fixedly mounted on the lower surface of the cutting disc 10. The gear 111 meshes with the gear ring 102, and the feed hood 32 guides the raw material into the feed tray 31 to prevent spillage and improve the utilization rate of the raw material. The feed tray 31 provides temporary storage and distribution space for the raw material. The servo motor 11 can adjust the rotation speed of the cutting disc 10 through the meshing of the output gear 111 and the gear ring 102, thereby controlling the cutting speed of the cutter 101, so that the extruded continuous granules can be cut into granules of uniform length to meet the requirements of granule length in different scenarios. At the same time, the granules falling onto the cutting disc 10 are conveyed to the discharge port through the cutting disc 10 to achieve discharge.

[0036] like Figure 2 and Figure 6 As shown, a pressure roller assembly 5 is provided on the output shaft 4. The pressure roller assembly 5 includes a strip frame 53 and a base plate 51 fixedly mounted on the output shaft 4. An eccentric sleeve 8 is symmetrically mounted on both the base plate 51 and the strip frame 53 via bearings. A pressure roller shaft 521 is rotatably mounted on the eccentric sleeve 8. A pressure roller 52 is fixedly mounted on the pressure roller shaft 521. A ring die 12 fitted onto the pressure roller 52 is fixedly mounted inside the hopper 3. A frame cover 531 is fixedly mounted on the strip frame 53. The strip frame 53 and the base plate 51 are fixed to the output shaft 4. The output shaft 4 can rotate synchronously with the output shaft 4, providing stable support for the revolution of the pressure roller 52; eccentric sleeves 8 are symmetrically arranged on the base plate 51 and the strip frame 53. The rotation of the eccentric sleeves 8 provides a structural basis for subsequent adjustment of the gap between the pressure roller 52 and the ring die 12; the pressure roller 52 and the ring die 12 cooperate to extrude the raw material into granules. The ring die 12 is sleeved on the pressure roller 52 to ensure that the raw material is always in the effective extrusion area between the pressure roller 52 and the ring die 12 during the extrusion process, thereby improving the granulation efficiency.

[0037] like Figure 6 - Figure 7 and Figure 9As shown, an adjustment mechanism 9 is provided on the bar frame 53. The adjustment mechanism 9 includes a bidirectional cam 91 rotatably mounted inside the bar frame 53. An adjustment rod 94 is slidably mounted on the bidirectional cam 91. The adjustment rod 94 has a threaded groove and is threaded onto the cover 531 through the threaded groove. The cover 531 not only protects the adjustment mechanism 9 from raw material dust entering and affecting its operation, but also provides a threaded mounting base for the adjustment rod 94, ensuring the stable installation and use of the adjustment mechanism 9. The adjustment rod 94 has a spline and is slidably mounted on the bidirectional cam 91 through the spline. A cam 92 is fixedly mounted on the eccentric sleeve 8 located on the bar frame 53. A connecting rod 93 is hinged between the cam 92 and the bidirectional cam 91. The adjustment rod 94 is threaded onto the cover 53 through the threaded groove. With the threaded engagement of the cover 531, the operator only needs to rotate the adjusting rod 94 to achieve axial movement of the adjusting rod 94, making the adjustment simple and convenient. The adjusting rod 94 slides in conjunction with the bidirectional cam 91 through a spline, which ensures that the adjusting rod 94 drives the bidirectional cam 91 to rotate synchronously when rotating, and also allows the adjusting rod 94 to slide along the axial direction of the bidirectional cam 91, avoiding interference between the two movements. The bidirectional cam 91 is connected to the cam 92 through the connecting rod 2 93. When the bidirectional cam 91 rotates, the connecting rod 2 93 pushes the cam 92 to drive the eccentric sleeve 8 to rotate, thereby driving the pressure roller 52 on the eccentric sleeve 8 to adjust its position, realizing the adjustment of the gap between the pressure roller 52 and the ring die 12. For highly viscous wet raw materials, the gap can be increased to prevent the granulation holes of the ring die 12 from being blocked; for loose dry raw materials, the gap can be decreased to increase the extrusion pressure to ensure molding.

[0038] like Figure 4 - Figure 5 As shown, a coaxial forward and reverse mechanism 6 is provided inside the flange seat 33. The coaxial forward and reverse mechanism 6 includes a sleeve 61 rotatably mounted on the output shaft 4. Both the sleeve 61 and the output shaft 4 are fixedly mounted with bevel gears 62. A second bevel gear 63 is rotatably mounted on the horizontal plate 331. The horizontal plate 331 provides a mounting base for the second bevel gear 63 of the coaxial forward and reverse mechanism 6, ensuring the stability of the second bevel gear 63 during operation. The second bevel gear 63 meshes with the two first bevel gears 62 respectively. The sleeve 61 is rotatably mounted on the output shaft 4, achieving coaxiality with the output shaft 4. The arrangement saves internal space and avoids the structural complexity caused by multi-axis transmission. The two bevel gears 62 mesh with bevel gear 63 respectively. When the output shaft 4 drives its own bevel gear 62 to rotate, the bevel gear 62 on the sleeve 61 rotates synchronously in the opposite direction through the bevel gear 63. Finally, the sleeve 61 and the output shaft 4 are coaxially rotated in both directions. This design does not require an additional independent drive source for the sleeve 61. The reverse rotation of the sleeve 61 can be achieved by the power of the output shaft 4 alone, which simplifies the equipment structure and reduces the energy consumption of the equipment.

[0039] like Figure 5 - Figure 6 As shown, a rotating connection mechanism 7 is provided inside the flange seat 33. The rotating connection mechanism 7 includes a driving gear 71, which is fixedly mounted on the sleeve 61. A driven gear 73 is fixedly mounted on the pressure roller shaft 521. Connecting rods 74 are rotatably mounted on both the pressure roller shaft 521 and the sleeve 61. A movable shaft 721 is rotatably mounted between the two connecting rods 74. A connecting gear 72 is fixedly mounted on the movable shaft 721. The connecting gear 72 meshes with both the driven gear 73 and the driving gear 71. The driving gear 71 rotates synchronously with the sleeve 61, transmitting the reverse power of the sleeve 61 to the connecting gear 72. The connecting gear 72 then drives the driven gear 73 to rotate, ultimately enabling the pressure roller shaft 521 to drive the pressure roller 52 to rotate, cooperating with the output shaft. 4 drives the pressure roller assembly 5 to revolve the pressure roller 52, forming a compound motion of revolution and rotation. The connecting rod 74 rotatably mounted on the pressure roller shaft 521 and the sleeve 61, and the movable shaft 721 rotatably mounted between the two connecting rods 74, constitute a flexibly adjustable transmission structure. When the adjusting mechanism 9 adjusts the position of the pressure roller 52, causing the distance between the pressure roller shaft 521 and the sleeve 61 to change, the connecting rod 74 can swing flexibly around the hinge point, driving the connecting gear 72 on the movable shaft 721 to adaptively adjust its position, always maintaining stable meshing with the driving gear 71 and the driven gear 73. This solves the problem of transmission failure after adjusting the gap of the roller mold in traditional equipment, ensuring that the pressure roller 52 can continuously and stably rotate before and after the gap adjustment, ensuring the continuity of the granulation process.

[0040] It should be noted that the working process of this biomass fuel compression pellet mill is as follows:

[0041] First, the drive motor 23 is started, and the power is transmitted to the output shaft 4 after being changed in speed by the gearbox 21. The bearing seat 22 provides radial positioning and axial support for the output shaft 4, and the hopper 3 is fixed to the bearing seat 22 by the bottom flange seat 33 to ensure the stability of the overall structure. When the output shaft 4 rotates, on the one hand, it drives the bottom plate 51 of the pressure roller assembly 5 and the strip frame 53 to rotate synchronously, so that the pressure roller 52 mounted on the strip frame 53 through the eccentric sleeve 8 revolves around the axis of the output shaft 4; on the other hand, the bevel gear 62 on the output shaft 4 and the bevel gear 62 at the lower end of the sleeve 61 mesh together with the bevel gear 63 on the inner horizontal plate 331 of the flange seat 33. Since the teeth of the two bevel gears 62 are opposite, they drive the sleeve 61 sleeved on the output shaft 4 to rotate in the opposite direction. The driving gear 71 at the upper end of the sleeve 61 transmits power through the connecting gear 72 on the movable shaft 721. The movable shaft 721 is supported by two connecting rods 74 that connect the sleeve 61 and the pressure roller shaft 521 respectively. The connecting gear 72 simultaneously meshes with the driven gear 73 on the pressure roller shaft 521, ultimately driving the pressure roller shaft 521 and the pressure roller 52 to rotate, so that the pressure roller 52 forms a compound motion of revolution and rotation.

[0042] Biomass raw materials are fed into the feed hood 32 of the silo 3, and collected between the ring die 12 and the pressure roller 52 via the feed tray 31. Under the combined extrusion of the pressure roller 52, the raw materials are forcibly pressed into the pelleting holes of the ring die 12, and after shaping, they are extruded from the outside of the ring die 12 to form continuous pellets. When it is necessary to adapt to raw materials with different hardness and moisture content, the adjusting rod 94 of the rotating adjusting mechanism 9 is rotated. The adjusting rod 94 moves axially through the threaded engagement with the cover 531. At the same time, the spline drives the bidirectional cam 91 in the bar frame 53 to rotate synchronously. The bidirectional cam 91 pushes the cam 92 on the eccentric sleeve 8 through the connecting rod 2 93, so that the eccentric sleeve 8 rotates to change the position of the pressure roller shaft 521. At this time, the distance between the pressure roller shaft 521 and the sleeve 61 changes with the adjustment of the pressure roller 52 position. However, in the rotating connecting mechanism 7, the transmission of the driving gear 71 and the driven gear 73 depends on the connecting gear 72 supported by two connecting rods 1 74. The connecting rods 1 74 can rotate flexibly around the hinge point on the sleeve 61 and the pressure roller shaft 521. When the distance between the two changes, the connecting rods 1 74 will swing synchronously with the position change, driving the movable shaft 721 and the connecting gear 72 to adjust their positions accordingly, always maintaining the stable meshing of the connecting gear 72 with the driving gear 71 and the driven gear 73, ensuring that the transmission is not interrupted.

[0043] Finally, the servo motor 11 on the feed tray 31 starts, and the output gear 111 at its output end meshes with the gear ring 102 on the lower surface of the cutting tray 10, driving the cutting tray 10 to drive the cutter 101 to rotate, cutting the continuous pellets extruded by the ring die 12 into a set length, thus completing the entire biomass fuel compression pelleting process.

[0044] The embodiments described above are merely examples of several implementations of the present invention, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements all fall within the scope of protection of the present invention.

Claims

1. A biomass fuel compression pellet mill, comprising a base (1) and a drive mechanism (2) disposed on the base (1), wherein the drive mechanism (2) is provided with an output shaft (4), characterized in that: The drive mechanism (2) is provided with a hopper (3); It also includes: The pressure roller assembly (5) includes a strip frame (53) fixedly mounted on the output shaft (4), a pressure roller shaft (521) eccentrically mounted on the strip frame (53), a pressure roller (52) fixedly mounted on the pressure roller shaft (521), a ring die (12) sleeved on the pressure roller (52) fixedly mounted in the hopper (3), and a cutter (101) rotatably mounted in the hopper (3). Adjustment mechanism (9), the adjustment mechanism (9) includes a bidirectional cam (91) rotatably disposed in a bar frame (53), and an adjustment rod (94) is slidably disposed through the bidirectional cam (91). A coaxial forward and reverse rotation mechanism (6) includes a sleeve (61) rotatably mounted on the output shaft (4). A rotating connection mechanism (7) is provided between the output shaft (4) and the pressure roller shaft (521) via a coaxial forward and reverse rotation mechanism (6); The pressure roller assembly (5) also includes a base plate (51) fixedly mounted on the output shaft (4). An eccentric sleeve (8) is symmetrically mounted on both the base plate (51) and the strip frame (53). The pressure roller shaft (521) is rotatably mounted on the eccentric sleeve (8). A frame cover (531) is fixedly mounted on the strip frame (53). A cam (92) is fixedly installed on the eccentric sleeve (8) located on the bar frame (53), and a connecting rod (93) is hinged between the cam (92) and the bidirectional cam (91). The adjusting rod (94) has a threaded groove, and the adjusting rod (94) is threaded through the threaded groove and mounted on the cover (531). The adjusting rod (94) has a spline, and the adjusting rod (94) is slidably mounted on the bidirectional cam (91) through the spline. The hopper (3) includes a material tray (31), a feed hood (32) is fixedly installed on the material tray (31), a flange seat (33) is fixedly installed at the lower end of the material tray (31), a horizontal plate (331) is installed inside the flange seat (33), a cutting disc (10) is rotatably installed inside the material tray (31), and a cutter (101) is fixedly installed on the cutting disc (10); Both the sleeve (61) and the output shaft (4) are fixedly provided with bevel gear one (62), and bevel gear two (63) is rotatably provided on the cross plate (331). The bevel gear two (63) meshes with the two bevel gears one (62) respectively. The rotating connection mechanism (7) includes a drive gear (71), which is fixedly mounted on the sleeve (61). A driven gear (73) is fixedly mounted on the pressure roller shaft (521). A connecting rod (74) is rotatably mounted on both the pressure roller shaft (521) and the sleeve (61). A movable shaft (721) is rotatably mounted between the two connecting rods (74). A connecting gear (72) is fixedly mounted on the movable shaft (721). The connecting gear (72) meshes with the driven gear (73) and the drive gear (71) respectively.

2. The biomass fuel compression pelletizer according to claim 1, characterized in that: The drive mechanism (2) includes a gearbox (21), which is fixedly mounted on a base (1). A drive motor (23) is fixedly mounted on the base (1). The output end of the drive motor (23) is connected to the gearbox (21). The output end of the gearbox (21) is connected to the output shaft (4). A bearing seat (22) is fixedly mounted on the gearbox (21). The bearing seat (22) is sleeved on the output shaft (4). The flange seat (33) is connected to the bearing seat (22).

3. The biomass fuel compression pelletizer according to claim 1, characterized in that: A servo motor (11) is fixedly installed on the material tray (31). The output end of the servo motor (11) passes through the material tray (31) and is fixedly installed with an output gear (111). A gear ring (102) is fixedly installed on the lower surface of the cutting tray (10). The output gear (111) meshes with the gear ring (102).

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