Biomass fuel compression granulator

Abstract

The invention belongs to the technical field of granulators, and particularly relates to a biomass fuel compression granulator which comprises a base and a driving mechanism arranged on the base, an output shaft is arranged on the driving mechanism, and a stock bin is arranged on the driving mechanism; the biomass fuel compression granulator further comprises a pressing wheel assembly, the pressing wheel assembly comprises a strip-shaped frame fixedly arranged on the output shaft, a pressing roller shaft is eccentrically and rotationally arranged on the strip-shaped frame, a pressing roller is fixedly arranged on the pressing roller shaft, and a circular mold arranged on the pressing roller in a sleeving mode is fixedly arranged in the stock bin. Meanwhile, the coaxial positive and negative rotation mechanism is matched with the rotary connecting mechanism to drive the pressing roller shaft to drive the pressing roller to actively rotate, and after the adjusting mechanism adjusts the gap between the pressing roller and the circular mold, even if the distance between the pressing roller shaft and the sleeve is changed, two first connecting rods in the rotary connecting mechanism can flexibly swing around the sleeve and the pressing roller shaft to drive a connecting gear on a movable shaft to adjust the position in a self-adaptive mode; and the stable meshing with the driving gear and the driven gear is always kept.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of pellet mill, and particularly relates to a biomass fuel compression pellet mill. BACKGROUND

[0002] The biomass fuel compression pellet mill is a core forming equipment in the field of biomass energy resource utilization, and is mainly used for converting loose biomass waste such as straw, sawdust, rice husk, branches and fungus residue into standardized pellet fuel with high density and stable calorific value. When working, the biomass raw material after pretreatment (crushing and drying to a suitable moisture content) is first conveyed to a pelletizing cavity, a high-strength mechanical extrusion force is applied to the raw material through the relative movement of a compression roller and a ring die (or a flat die) driven by a motor, and the lignin in the raw material is softened and plays a binding role by using the friction heat generated during the extrusion process, so that the loose raw material is finally pressed into a cylindrical pellet with a compact structure and a regular shape.

[0003] The compression roller of the traditional pellet mill relies on the friction force between the inner wall of the ring die and the surface of the compression roller to realize passive self-rotation. When the material supply in the hopper is insufficient and the raw material has low viscosity (such as dry sawdust and light straw), the compression roller is prone to relative slipping with the ring die, which not only causes the self-rotation of the compression roller to stop and the raw material to be unable to be fully extruded into the pelletizing hole of the ring die, resulting in a significant decrease in pellet forming rate, but also causes the raw material to carbonize and stick in the pelletizing hole due to the local friction heat generated by the slipping, which leads to the blockage of the pelletizing hole and aggravates the uneven wear of the roller die components. Moreover, some improved equipment adds an independent driving mechanism to the compression roller to realize active roller pressing in order to solve the problem of compression roller slipping. Although the continuous self-rotation of the compression roller can be ensured, the transmission chain and the compression roller mounting seat of this structure are rigidly connected, and the distance between the compression roller and the ring die cannot be flexibly adjusted, which makes it difficult to adapt to biomass raw materials with different hardness and humidity. SUMMARY

[0004] The purpose of the present application is to provide a biomass fuel compression pellet mill that can adapt to the self-rotation of the compression roller and adjust the distance between the roller and the die.

[0005] The present application achieves the above-mentioned purpose through the following technical solutions: A biomass fuel compression pellet mill, comprising a base and a driving mechanism arranged on the base, wherein an output shaft is arranged on the driving mechanism, and a hopper is arranged on the driving mechanism; Further comprising: A compression roller assembly, comprising a strip-shaped frame fixedly arranged on the output shaft, a compression roller shaft eccentrically arranged on the strip-shaped frame, and a compression roller fixedly arranged on the compression roller shaft, wherein a ring die is fixedly arranged in the hopper and sleeved on the compression roller, and a cutter is rotatably arranged in the hopper. The adjusting mechanism comprises a biaxial cam rotatingly arranged in the strip-shaped frame, and an adjusting rod slidingly arranged on the biaxial cam; The coaxial positive and negative rotating mechanism comprises a sleeve rotatingly arranged on the output shaft. The rotating connecting mechanism is arranged between the output shaft and the compression roller shaft through the coaxial positive and negative rotating mechanism.

[0006] As a further optimization scheme of the present application, the compression roller assembly further comprises a bottom plate fixedly arranged on the output shaft, and eccentric sleeves symmetrically rotatingly arranged on the bottom plate and the strip-shaped frame, and the compression roller shaft rotatingly arranged on the eccentric sleeves, and a frame cover fixedly arranged on the strip-shaped frame.

[0007] As a further optimization scheme of the present application, a cam is fixedly arranged on the eccentric sleeve on the strip-shaped frame, and a connecting rod II is hingedly arranged between the cam and the biaxial cam.

[0008] As a further optimization scheme of the present application, a threaded groove is formed in the adjusting rod, the adjusting rod is threadedly arranged on the frame cover through the threaded groove, a spline is formed in the adjusting rod, and the adjusting rod is slidingly arranged on the biaxial cam through the spline.

[0009] As a further optimization scheme of the present application, the hopper comprises a hopper disc, a feeding cover fixedly arranged on the hopper disc, a flange seat fixedly arranged at the lower end of the hopper disc, a horizontal plate arranged in the flange seat, a cutting disc rotatingly arranged in the hopper disc, and a cutting knife fixedly arranged on the cutting disc.

[0010] As a further optimization scheme of the present application, a bevel gear I is fixedly arranged on the sleeve and the output shaft, a bevel gear II is rotatingly arranged on the horizontal plate, and the bevel gear II is engaged with the two bevel gears I, respectively.

[0011] As a further optimization scheme of the present application, the rotating connecting mechanism comprises a driving gear fixedly arranged on the sleeve, a driven gear fixedly arranged on the compression roller shaft, a connecting rod I rotatingly arranged on the compression roller shaft and the sleeve, an activity shaft rotatingly arranged between the two connecting rods I, a connecting gear fixedly arranged on the activity shaft, and the connecting gear engaged with the driven gear and the driving gear, respectively.

[0012] As a further optimization scheme of the present application, the driving mechanism comprises a gear box fixedly arranged on the base, a driving motor fixedly arranged on the base, an output end of the driving motor connected with the gear box, an output end of the gear box connected with the output shaft, a bearing seat fixedly arranged on the gear box, the bearing seat sleeved on the output shaft, and the flange seat connected with the bearing seat.

[0013] As a further optimization scheme of the present application, a servo motor is fixedly arranged on the tray, an output gear is fixedly arranged at the output end of the servo motor and penetrates through the tray, a gear ring is fixedly arranged on the lower surface of the cutting tray, and the output gear and the gear ring are engaged.

[0014] The present application has the following advantages: 1. Unlike the prior art, in actual use, the output shaft drives the pressure roller to revolve, and at the same time, the coaxial reverse rotation mechanism cooperates with the rotating connecting mechanism to drive the pressure roller shaft to drive the pressure roller to revolve actively and self-rotate. This driving form does not need to rely on the friction force between the material and the roller mold. Even in the working condition of insufficient material supply and low viscosity of raw materials, the pressure roller can also be continuously and stably self-rotated, effectively preventing the phenomenon of slipping.

[0015] 2. Unlike the prior art, in actual use, after the adjusting mechanism adjusts the gap between the pressure roller and the ring mold, even if the distance between the pressure roller shaft and the sleeve changes, the two connecting rods in the rotating connecting mechanism can flexibly swing around the sleeve and the pressure roller shaft, drive the connecting gear on the movable shaft to adaptively adjust the position, and always maintain stable engagement with the driving gear and the driven gear, ensuring uninterrupted transmission, ensuring continuous self-rotation of the pressure roller, and realizing the cooperative operation of active driving and gap adjustment. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 is a schematic diagram of the overall structure of the present application; Figure 2 is a schematic diagram of the overall structure of the present application; Figure 1 is a schematic diagram of the overall structure of the present application; Figure 3 is a schematic diagram of the overall structure of the present application; Figure 4 is a schematic diagram of the overall structure of the present application; Figure 5 is a schematic diagram of the overall structure of the present application; Figure 4 is a schematic diagram of the overall structure of the present application; Figure 6 is a schematic diagram of the overall structure of the present application; Figure 7 is a schematic diagram of the overall structure of the present application; Figure 6 is a schematic diagram of the overall structure of the present application; Figure 8 is a schematic diagram of the overall structure of the present application; Figure 9 is a schematic diagram of the overall structure of the present application;

[0017] 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

[0018] 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.

[0019] 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.

[0020] like Figure 3 - Figure 4 and Figure 8As shown, the hopper 3 comprises a material tray 31, the material tray 31 is provided with a discharging port, the material tray 31 is fixedly provided with a feeding cover 32, the lower end of the material tray 31 is fixedly provided with a flange seat 33, the flange seat 33 is connected with the bearing seat 22, the flange seat 33 is provided with a transverse plate 331, the material tray 31 is rotatably provided with a cutting tray 10, the cutting tray 10 is provided with a cutter 101, the material tray 31 is fixedly provided with a servo motor 11, the output end of the servo motor 11 penetrates through the material tray 31 and is fixedly provided with an output gear 111, the lower surface of the cutting tray 10 is fixedly provided with a gear ring 102, the output gear 111 is engaged with the gear ring 102, the feeding cover 32 can guide the raw materials to fall into the material tray 31, so as to avoid the raw materials from spilling and improve the utilization rate of the raw materials; the material tray 31 provides temporary storage and distribution space for the raw materials; the servo motor 11 can adjust the rotating speed of the cutting tray 10 through the engagement transmission of the output gear 111 and the gear ring 102, so as to control the cutting speed of the cutter 101, so that the continuous granular material extruded can be cut into granules with uniform length, the demand for the length of the granules in different scenes is met, and the granules falling onto the cutting tray 10 are transported to the discharging port through the cutting tray 10, so as to realize discharging.

[0021] As shown in Figure 2 and Figure 6 , the output shaft 4 is provided with a pressure roller assembly 5, the pressure roller assembly 5 comprises a strip-shaped frame 53 and a bottom plate 51 fixedly arranged on the output shaft 4, the bottom plate 51 and the strip-shaped frame 53 are both symmetrically rotatably provided with eccentric sleeves 8 through bearings, the eccentric sleeves 8 are rotatably provided with pressure roller shafts 521, the pressure roller shafts 521 are fixedly provided with pressure rollers 52, the hopper 3 is fixedly provided with a ring die 12 sleeved on the pressure roller 52, the strip-shaped frame 53 is fixedly provided with a frame cover 531, the strip-shaped frame 53 and the bottom plate 51 are fixed on the output shaft 4 and can rotate synchronously with the output shaft 4, thereby providing stable support for the revolution of the pressure roller 52; the bottom plate 51 and the strip-shaped frame 53 are symmetrically provided with eccentric sleeves 8, thereby providing a structural basis for subsequent adjustment of the gap between the pressure roller 52 and the ring die 12 through the rotation of the eccentric sleeves 8; the pressure roller 52 cooperates with the ring die 12 to extrude the raw materials into granules, the ring die 12 is sleeved on the pressure roller 52, thereby ensuring that the raw materials are always in the effective extrusion area between the pressure roller 52 and the ring die 12 during the extrusion process, and improving the granulation efficiency.

[0022] As shown in 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.

[0023] 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.

[0024] 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.

[0025] It should be noted that the working process of this biomass fuel compression pellet mill is as follows: 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.

[0026] 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.

[0027] 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.

[0028] 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 granulator, comprising a base (1) and a driving mechanism (2) arranged on the base (1), wherein an output shaft (4) is arranged on the driving mechanism (2), characterized in that: The driving mechanism (2) is provided with a hopper (3); Further comprising: The pressure wheel assembly (5) comprises a strip-shaped frame (53) fixedly arranged on the output shaft (4), an eccentric sleeve (8) is arranged on the strip-shaped frame (53) and the bottom plate (51) in a symmetrical manner, the pressure roller shaft (521) is arranged on the eccentric sleeve (8) in a rotating manner, and the frame cover (531) is fixedly arranged on the strip-shaped frame (53). The eccentric sleeve (8) arranged on the strip-shaped frame (53) is fixedly provided with a cam (92), and the cam (92) and the bidirectional cam (91) are hingedly connected with a connecting rod two (93). The adjusting rod (94) is provided with a threaded groove, the adjusting rod (94) is arranged on the frame cover (531) in a threaded manner through the threaded groove, the adjusting rod (94) is provided with a spline, and the adjusting rod (94) is arranged on the bidirectional cam (91) in a sliding manner through the spline. The hopper (3) comprises a material disc (31), the material disc (31) is fixedly provided with a feeding cover (32), the lower end of the material disc (31) is fixedly provided with a flange seat (33), the flange seat (33) is provided with a transverse plate (331), the material disc (31) is rotatably provided with a cutting disc (10), and the cutting knife (101) is fixedly arranged on the cutting disc (10).

2. The biomass fuel compression granulator according to claim 1, characterized in that: The sleeve (61) and the output shaft (4) are fixedly provided with bevel gears one (62), the transverse plate (331) is rotatably provided with a bevel gear two (63), and the bevel gear two (63) is engaged with the two bevel gears one (62) respectively.

3. The biomass fuel compression granulator according to claim 1, characterized in that: The rotating connection mechanism (7) comprises a driving gear (71), the driving gear (71) is fixedly arranged on the sleeve (61), the pressure roller shaft (521) is fixedly provided with a driven gear (73), the pressure roller shaft (521) and the sleeve (61) are rotatably provided with connecting rods one (74), the connecting rods one (74) are rotatably arranged between the two connecting rods one (74), the movable shaft (721) is fixedly arranged on the connecting rods one (74), the connecting gear (72) is engaged with the driven gear (73) and the driving gear (71) respectively.

4. The biomass fuel compression granulator according to claim 2, characterized in that: ​ 5. The biomass fuel compression granulator according to claim 1, characterized in that: ​ 6. A biomass fuel compression granulator according to claim 5, characterised in that: ​ 7. The biomass fuel compression granulator according to claim 1, characterized in that: ​ 8. The biomass fuel compression granulator according to claim 5, characterized in that: The driving mechanism (2) comprises a gear box (21) fixedly arranged on the base (1), a driving motor (23) fixedly arranged on the base (1), a connection between the output end of the driving motor (23) and the gear box (21), a connection between the output end of the gear box (21) and the output shaft (4), a bearing seat (22) fixedly arranged on the gear box (21), a sleeving of the bearing seat (22) on the output shaft (4), and a connection between the flange seat (33) and the bearing seat (22).

9. The biomass fuel compression granulator according to claim 5, characterized in that: The tray (31) is fixedly provided with a servo motor (11), the output end of the servo motor (11) penetrates through the tray (31) and is fixedly provided with an output gear (111), the lower surface of the cutting tray (10) is fixedly provided with a gear ring (102), and the output gear (111) is engaged with the gear ring (102).

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