Pelletizing forming machine for producing biomass pellet fuel

Abstract

The invention belongs to the technical field of granulators, and discloses a granulation forming machine for biomass pellet fuel production, the granulation forming machine comprises a granulator base, one side of the top of the granulator base is fixedly connected with a connecting chamber, the top of the connecting chamber is fixedly connected with a forming chamber, the middle of the top end of the forming chamber is fixedly connected with a feeding port, and the feeding port is fixedly connected with a discharging port. One side of the forming chamber is fixedly connected with a discharge port, and one side of the top of the granulator base is fixedly connected with a first driving motor. The double-shaft motor is started to drive the threaded rod to rotate, the threaded rod rotates to push the threaded sleeve to move, the threaded sleeve moves to drive the connecting shaft to move, and the connecting shaft moves to drive the pressing roller to move, so that the gap between the pressing roller and the ring mill is adjusted to adapt to the characteristics of biomass materials, and the forming effect is improved.

Description

Technical Field

[0001] The invention belongs to the technical field of pelletizers, in particular to a pelletizing and molding machine for producing biomass pellet fuel. Background Art

[0002] With the continuous development of the world economy, energy and environmental issues are becoming increasingly prominent. The main energy sources currently used by humans are oil, natural gas and coal. However, fossil resources such as coal and oil are becoming increasingly depleted and non-renewable, and the energy supply continues to be tight; on the other hand, the excessive use of fossil resources has caused increasingly serious environmental problems. Biomass energy is solar energy stored in plants through photosynthesis between plants and solar energy. It is estimated that the energy stored in plants each year is equivalent to 10 times the world's main fuel consumption, while the amount used as energy is less than 1% of its total amount. As the fourth largest energy resource, biomass occupies an important position in renewable energy. The development of biomass energy can not only supplement the shortage of conventional energy, but also has significant environmental benefits. Compared with other biomass energy technologies, biomass pellet fuel technology is easier to achieve large-scale production and use. The convenience of using biomass pellet fuel is comparable to gas, fuel oil and other energy sources. The project of using biomass compact molding equipment to produce pellet fuel is in line with national industrial policies and has good economic and social benefits.

[0003] In the biological granulators in the prior art, the gap between the pressure roller and the ring mill is mostly fixed, and cannot be effectively adjusted according to the raw material characteristics and production requirements during the working process. In the granulation process, if the gap between the pressure roller and the ring mill is too large, the material layer in the granulation area will become thicker, increasing its pressure, and at the same time causing the motor current to increase, the resistance to the operation of the pressure roller to increase, the pressure roller to slip, and the pellet machine to vibrate, resulting in a decrease in granulation output or even no pellets. If the gap is too small, the pressure roller will be in direct contact with the ring mill, increasing wear and seriously affecting its service life. In addition, the guide port of the ring mill will be deformed due to wear, making it difficult to feed the grinding hole, resulting in a gradual decrease in granulation output, difficulty in pelleting, or even shutdown. Summary of the invention

[0004] The purpose of the present invention is to provide a pelletizing and molding machine for the production of biomass pellet fuel to solve the problems raised in the above background technology.

[0005] In order to achieve the above-mentioned purpose, the present invention provides the following technical solutions: a pelletizing and molding machine for the production of biomass pellet fuel, comprising a pelletizing machine base, a connecting chamber is fixedly connected to one side of the top of the pelletizing machine base, a molding chamber is fixedly connected to the top of the connecting chamber, a feed inlet is fixedly connected to the middle of the top of the molding chamber, a discharge port is fixedly connected to one side of the molding chamber, a first driving motor is fixedly connected to one side of the top of the pelletizing machine base, a first rotating shaft is fixedly connected to the output end of the first driving motor, the first rotating shaft is rotatably connected to the pelletizing machine base, a first gear is fixedly connected to the outer side of the first rotating shaft, and the first gear is A second gear is meshedly connected to the side, a second rotating shaft is fixedly connected to the middle of the second gear, the second rotating shaft is rotatably connected to the inside of the granulator base, a third gear is fixedly connected to the outer side of the upper end of the second rotating shaft, a fourth gear is meshedly connected to one side of the third gear, a third rotating shaft is fixedly connected to the middle of the fourth gear, the third rotating shaft is rotatably connected to the inside of the granulator base, connecting plates are fixedly connected to both sides of the top of the third rotating shaft, a connecting shaft is arranged inside the connecting plate, a pressing roller is rotatably connected to the top of the connecting shaft, a material clearing component is arranged inside the connecting chamber, and a material discharging component is arranged inside the molding chamber;

[0006] A dual-axis motor is fixedly connected inside the third rotating shaft, and the output ends at both ends of the dual-axis motor are fixedly connected to threaded rods, and threaded sleeves are threadedly sleeved on the outer sides of the two threaded rods, and one end of the threaded sleeve is fixedly connected to the connecting shaft, and sliding grooves are opened on both sides of the connecting plate, and the sliding grooves are arranged corresponding to the connecting shaft, and the connecting shaft is slidably connected to the inside of the sliding grooves.

[0007] Preferably, the material clearing assembly includes a mounting plate, which is arranged below the second spring, with multiple first springs fixedly connected inside the mounting plate, the tops of multiple first springs are fixedly connected to the top plate, multiple top plates are respectively arranged corresponding to the connecting plate, a clearing plate is arranged on the top of the top plate, one end of the clearing plate is fixedly connected to multiple second springs, one ends of multiple second springs are fixedly connected to the connecting plate, the top plate is in contact with the clearing plate, and the width of the clearing plate is greater than the width of the top plate.

[0008] Preferably, the material cleaning assembly also includes a hydraulic rod, which is arranged at the bottom of the mounting plate, the mounting plate and the hydraulic rod are movably connected, the hydraulic rod is fixedly connected to the inside of the connecting chamber, the third rotating shaft is rotatably connected to the inside of the hydraulic rod, and the third rotating shaft is rotatably connected to the mounting plate.

[0009] Preferably, the discharging assembly includes a concave ring, which is fixedly connected to the inside of the molding chamber, a second drive motor is fixedly connected to one side of the top of the molding chamber, the output end of the second drive motor is fixedly connected to a fourth rotating shaft, one end of the fourth rotating shaft is fixedly connected to a fifth gear, one side of the fifth gear is meshingly connected to a first gear ring, a ring mill is movably sleeved inside the first gear ring, the first gear ring is rotatably connected to the inside of the concave ring, the fourth rotating shaft is rotatably connected to the concave ring, a cutting knife is fixedly connected to the bottom of the first gear ring, and the blade of the cutting knife is tangent to the outer surface of the ring mill.

[0010] Preferably, the discharging assembly further comprises a first gear ring, which is meshingly connected to one side of the fifth gear, a ring grinder is movably sleeved inside the first gear ring, and a cutting knife is fixedly connected to the bottom of the first gear ring.

[0011] Preferably, the width of the slide groove can be covered by the pressure roller, the shape of the cleaning plate is "7" shape, and the bottom of the cleaning plate has a cutout.

[0012] Preferably, the diameter of the mounting plate is equal to the inner diameter of the connecting chamber, the bottom of the pressure roller is equal to the bottom of the ring mill, and the height of the pressure roller is equal to the height of a row of extrusion holes at the bottom of the ring mill.

[0013] Preferably, the cutting edge of the cutting knife is tangent to the outer surface of the ring mill, and a certain distance is left between the cutting knife and the inner wall of the forming chamber.

[0014] The beneficial effects of the present invention are as follows:

[0015] 1. The present invention starts a dual-axis motor to drive the threaded rod to rotate, the threaded rod rotates to push the threaded sleeve to move, the threaded sleeve movement drives the connecting shaft to move, the connecting shaft movement drives the pressing roller to move, thereby adjusting the gap between the pressing roller and the ring mill to adapt to the characteristics of the biomass material and improve the molding effect. At the same time, it can also effectively avoid the gap between the pressing roller and the ring mill being too large, which causes the material layer in the granulation area to thicken, and the motor output pressure is too large, which causes the granulation output to decrease or even stop operating, and avoid the gap between the pressing roller and the ring mill being too small, which causes the friction between the pressing roller and the ring mill to be too large, thereby causing damage to the parts and reducing their service life.

[0016] 2. The present invention pushes the mounting plate to move when the hydraulic rod is activated. After the mounting plate moves, it cooperates with the cleaning plate. At this time, the top plate is pressed into the first spring by the connecting plate, and the cleaning plate contacts the surface of the mounting plate. At this time, the connecting plate can rotate to shape the residual material at the bottom, avoiding the stacking of the bottom material, avoiding the increase of subsequent processing steps, improving work efficiency, and also avoiding waste of materials.

[0017] 3. The present invention starts the second drive motor to drive the fourth shaft to rotate, the rotation of the fourth shaft drives the first gear ring to rotate, the rotation of the first gear ring drives the cutting knife to rotate along the outer surface of the ring mill to cut the extruded biomass particles, thereby completing the processing of the biomass particles. At the same time, the rotation of the cutting knife can also push the cut biomass particles to be discharged to increase the discharge speed and improve work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0019] Figure 2 It is a cross-sectional view of the granulator base of the present invention;

[0020] Figure 3 is a cross-sectional view of the connecting chamber of the present invention;

[0021] Figure 4 is a schematic structural diagram of the first spring of the present invention;

[0022] Figure 5 It is a structural schematic diagram of the dual-axis motor of the present invention;

[0023] Figure 6 is a cross-sectional view of a concave gear ring of the present invention;

[0024] Figure 7 For the present invention Figure 6 A magnified view of the structure at center;

[0025] Figure 8 It is a schematic structural diagram of the concave gear ring of the present invention.

[0026] In the figure: 1, granulator base; 2, connecting chamber; 3, forming chamber; 4, feed port; 5, discharge port; 6, first drive motor; 7, first rotating shaft; 8, first gear; 9, second gear; 10, second rotating shaft; 11, third gear; 12, fourth gear; 13, third rotating shaft; 14, connecting plate; 15, connecting shaft; 16, pressure roller; 17, double-shaft motor; 18, threaded rod; 19, threaded sleeve; 20, slide groove; 21, first spring; 22, top plate; 23, cleaning plate; 24, second spring; 25, mounting plate; 26, hydraulic rod; 27, concave ring; 28, second drive motor; 29, fourth rotating shaft; 30, fifth gear; 31, first gear ring; 32, ring mill; 33, cutting knife. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0028] like Figures 1 to 8 As shown, an embodiment of the present invention provides a pelletizing and molding machine for the production of biomass pellet fuel, including a pelletizing machine base 1, a connecting chamber 2 is fixedly connected to one side of the top of the pelletizing machine base 1, a molding chamber 3 is fixedly connected to the top of the connecting chamber 2, a feed port 4 is fixedly connected to the middle of the top of the molding chamber 3, a discharge port 5 is fixedly connected to one side of the molding chamber 3, a first driving motor 6 is fixedly connected to one side of the top of the pelletizing machine base 1, a first rotating shaft 7 is fixedly connected to the output end of the first driving motor 6, the first rotating shaft 7 is rotatably connected to the pelletizing machine base 1, a first gear 8 is fixedly connected to the outer side of the first rotating shaft 7, and a second gear 9 is meshingly connected to one side of the first gear 8 A second rotating shaft 10 is fixedly connected to the middle of the second gear 9, and the second rotating shaft 10 is rotatably connected to the inside of the granulator base 1. A third gear 11 is fixedly connected to the outer side of the upper end of the second rotating shaft 10, and a fourth gear 12 is meshed and connected to one side of the third gear 11. A third rotating shaft 13 is fixedly connected to the middle of the fourth gear 12, and the third rotating shaft 13 is rotatably connected to the inside of the granulator base 1. Connecting plates 14 are fixedly connected to both sides of the top of the third rotating shaft 13, and a connecting shaft 15 is arranged inside the connecting plate 14. A pressing roller 16 is rotatably arranged on the top of the connecting shaft 15. A clearing component is arranged inside the connecting chamber 2, and a discharging component is arranged inside the molding chamber 3.

[0029] A dual-axis motor 17 is fixedly connected to the interior of the third rotating shaft 13, and the output ends at both ends of the dual-axis motor 17 are fixedly connected to threaded rods 18. The outer sides of the two threaded rods 18 are threadedly sleeved with threaded sleeves 19, and one end of the threaded sleeve 19 is fixedly connected to the connecting shaft 15. Slide grooves 20 are provided on both sides of the interior of the connecting plate 14. The slide grooves 20 are arranged corresponding to the connecting shaft 15. The connecting shaft 15 is slidably connected to the interior of the slide grooves 20. By starting the dual-axis motor 17, the dual-axis motor 17 starts to drive the threaded rods 18 to rotate, and the threaded rods 18 rotate to push the threaded sleeves 19 The threaded sleeve 19 moves, the connecting shaft 15 moves, and the connecting shaft 15 moves, which drives the pressing roller 16 to move, so as to adjust the gap between the pressing roller 16 and the ring mill 32 to adapt to the characteristics of the biomass material and improve the molding effect. At the same time, it can also effectively avoid the gap between the pressing roller 16 and the ring mill 32 being too large, which may cause the material layer in the granulating area to thicken, and the motor output pressure to be too large, which may cause the granulating output to decrease or even stop running, and avoid the gap between the pressing roller 16 and the ring mill 32 being too small, which may cause excessive friction between the pressing roller 16 and the ring mill 32, thereby causing damage to the parts and reducing their service life.

[0030] The material clearing assembly includes a mounting plate 25, which is arranged below the second spring 24. A plurality of first springs 21 are fixedly connected inside the mounting plate 25. The tops of the plurality of first springs 21 are fixedly connected to the top plate 22. The plurality of top plates 22 are respectively arranged corresponding to the connecting plate 14. A clearing plate 23 is arranged on the top of the top plate 22. One end of the clearing plate 23 is fixedly connected to the plurality of second springs 24. One end of the plurality of second springs 24 is fixedly connected to the connecting plate 14. The top plate 22 contacts the clearing plate 23. The width of the clearing plate 23 is greater than the width of the top plate 22. The material clearing assembly also includes a hydraulic rod 26, which is arranged at the bottom of the mounting plate 25. The mounting plate 25 and the hydraulic rod 26 are connected to the hydraulic rod 26. The rod 26 is movably sleeved, the hydraulic rod 26 is fixedly connected to the inside of the connecting chamber 2, the third rotating shaft 13 is rotatably connected to the inside of the hydraulic rod 26, the third rotating shaft 13 and the mounting plate 25 are rotatably connected, by starting the hydraulic rod 26, the hydraulic rod 26 will push the mounting plate 25 to move, and the mounting plate 25 will cooperate with the cleaning plate 23 after moving. At this time, the top plate 22 is pressed into the inside of the first spring 21 by the connecting plate 14, and the cleaning plate 23 contacts the surface of the mounting plate 25. At this time, after the connecting plate 14 is rotated, the residual material at the bottom can be formed, avoiding the stacking of the bottom material, avoiding the increase of subsequent processing steps, improving work efficiency, and also avoiding waste of materials.

[0031] The discharging assembly includes a concave ring 27, which is fixedly connected to the inside of the molding chamber 3, a second driving motor 28 is fixedly connected to one side of the top of the molding chamber 3, a fourth rotating shaft 29 is fixedly connected to the output end of the second driving motor 28, a fifth gear 30 is fixedly connected to one end of the fourth rotating shaft 29, a first gear ring 31 is meshedly connected to one side of the fifth gear 30, a ring mill 32 is movably sleeved inside the first gear ring 31, the first gear ring 31 is rotatably connected to the inside of the concave ring 27, the fourth rotating shaft 29 is rotatably connected to the concave ring 27, a cutting knife 33 is fixedly connected to the bottom of the first gear ring 31, and the blade of the cutting knife 33 is tangent to the outer surface of the ring mill 32. The device also includes a first gear ring 31, which is meshed and connected to one side of the fifth gear 30. A ring mill 32 is movably sleeved inside the first gear ring 31, and a cutting knife 33 is fixedly connected to the bottom of the first gear ring 31. By starting the second drive motor 28, the second drive motor 28 starts to drive the fourth shaft 29 to rotate, and the fourth shaft 29 rotates to drive the first gear ring 31 to rotate. The rotation of the first gear ring 31 drives the cutting knife 33 to rotate along the outer surface of the ring mill 32 to cut the extruded biomass particles, thereby completing the processing of the biomass particles. At the same time, the rotation of the cutting knife 33 can also push the cut biomass particles to be discharged to increase the discharge speed and improve the work efficiency.

[0032] The width of the slide groove 20 can be covered by the pressure roller 16, the shape of the clearing plate 23 is "7"-shaped, and the bottom of the clearing plate 23 has a cutout. By setting the clearing plate 23 to be "7"-shaped, its up and down displacement can be limited.

[0033] Among them, the diameter of the mounting plate 25 is equal to the internal diameter of the connecting chamber 2, the bottom of the pressure roller 16 is equal to the bottom of the ring mill 32, and the height of the pressure roller 16 is equal to the height of the extrusion holes in the bottom row of the ring mill 32. By making the bottom of the pressure roller 16 equal to the bottom of the ring mill 32, and the height of the pressure roller 16 equal to the height of the extrusion holes in the bottom row of the ring mill 32, the pressure roller 16 can better cooperate with the ring mill 32 to crush the raw materials, thereby improving the processing effect and increasing the processing speed.

[0034] Among them, the blade of the cutting knife 33 is tangent to the outer surface of the ring mill 32, and a certain distance is left between the cutting knife 33 and the inner wall of the forming chamber 3. By making the blade tangent to the outer surface of the ring mill 32, the cutting knife 33 can better cut the biomass particles. By leaving a certain distance between the cutting knife 33 and the inner wall of the forming chamber 3, the friction between the cutting knife 33 and the inner wall can be reduced, thereby improving the service life of the workpiece.

[0035] Working principle:

[0036] When biomass processing is needed, the raw biomass material is placed into the molding chamber 3 through the feed port 4. At this time, the raw biomass material will fall onto the surface of the mounting plate 25 due to gravity, and the first drive motor 6 is started. The first drive motor 6 starts to drive the first shaft 7 to rotate, and the first shaft 7 rotates to drive the first gear 8 and the second gear 9 to rotate. The second gear 9 rotates to drive the second shaft 10, the third gear 11 and the fourth gear 12 to rotate. The fourth gear 12 rotates to drive the third shaft 13 to rotate. The third shaft 13 rotates to drive the connecting plate 14 to rotate. The connecting plate 14 rotates to drive the connecting shaft 15 and the pressure roller 16 to rotate. Through the cooperation of the pressure roller 16 and the ring mill 32, the raw biomass material is ground and extruded to be processed into biomass particles. During the processing, the biomass particles According to the characteristics of the biomass material, it is necessary to adjust the gap between the pressing roller 16 and the ring mill 32 to adapt to the characteristics of different materials. At this time, the double-axis motor 17 is started, and the double-axis motor 17 is started to drive the threaded rod 18 to rotate. The rotation of the threaded rod 18 drives the threaded sleeve 19 to move. The movement of the threaded sleeve 19 drives the connecting shaft 15 to move. The movement of the connecting shaft 15 drives the pressing roller 16 to move, thereby adjusting the gap between the pressing roller 16 and the ring mill 32 to adapt to the characteristics of the biomass material and improve the molding effect. At the same time, it can also effectively avoid the gap between the pressing roller 16 and the ring mill 32 being too large, which causes the material layer in the granulation area to thicken, and the motor output pressure is too large, resulting in a decrease in the granulation output or even stopping the operation, and avoid the gap between the pressing roller 16 and the ring mill 32 being too small, resulting in excessive friction between the pressing roller 16 and the ring mill 32, thereby causing damage to the parts and reducing their service life;

[0037] After the raw materials are basically processed, some of the raw materials will be accumulated at the bottom. At this time, the hydraulic rod 26 can be started. The hydraulic rod 26 will push the mounting plate 25 to move. After the mounting plate 25 moves, it will cooperate with the cleaning plate 23. At this time, the top plate 22 is pressed into the first spring 21 by the connecting plate 14, and the cleaning plate 23 contacts the surface of the mounting plate 25. At this time, the connecting plate 14 can rotate to shape the residual materials at the bottom, avoiding the stacking of the bottom materials, avoiding the increase of subsequent processing steps, improving work efficiency, and also avoiding the waste of materials;

[0038] After the raw materials are processed into biomass particles, the second drive motor 28 is started, and the second drive motor 28 starts to drive the fourth shaft 29 to rotate. The rotation of the fourth shaft 29 drives the first gear ring 31 to rotate. The rotation of the first gear ring 31 drives the cutting knife 33 to rotate along the outer surface of the ring mill 32 to cut the extruded biomass particles, thereby completing the processing of the biomass particles. At the same time, the rotation of the cutting knife 33 can also push the cut biomass particles to be discharged, increase the discharge speed, and improve work efficiency.

[0039] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0040] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A pelletizing and molding machine for producing biomass pellet fuel, comprising a pelletizing machine base (1), a connecting chamber (2) fixedly connected to one side of the top of the pelletizing machine base (1), a molding chamber (3) fixedly connected to the top of the connecting chamber (2), a feed inlet (4) fixedly connected to the middle of the top of the molding chamber (3), and a discharge outlet (5) fixedly connected to one side of the molding chamber (3), characterized in that: A first drive motor (6) is fixedly connected to one side of the top of the granulator base (1); a first rotating shaft (7) is fixedly connected to the output end of the first drive motor (6); the first rotating shaft (7) is rotatably connected to the granulator base (1); a first gear (8) is fixedly connected to the outer side of the first rotating shaft (7); a second gear (9) is meshingly connected to one side of the first gear (8); a second rotating shaft (10) is fixedly connected to the middle of the second gear (9); the second rotating shaft (10) is rotatably connected to the inside of the granulator base (1); and a first gear (8) is fixedly connected to the outer side of the upper end of the second rotating shaft (10). Three gears (11), one side of the third gear (11) is meshedly connected with a fourth gear (12), the middle of the fourth gear (12) is fixedly connected with a third rotating shaft (13), the third rotating shaft (13) is rotatably connected to the inside of the granulator base (1), both sides of the top of the third rotating shaft (13) are fixedly connected with connecting plates (14), a connecting shaft (15) is arranged inside the connecting plate (14), the top of the connecting shaft (15) is rotatably connected with a pressure roller (16), a cleaning component is arranged inside the connecting chamber (2), and a discharging component is arranged inside the molding chamber (3); A dual-axis motor (17) is fixedly connected inside the third rotating shaft (13), and the output ends at both ends of the dual-axis motor (17) are fixedly connected to threaded rods (18), and threaded sleeves (19) are threadedly sleeved on the outer sides of the two threaded rods (18), and one end of the threaded sleeve (19) is fixedly connected to the connecting shaft (15). Slide grooves (20) are provided on both sides of the connecting plate (14), and the slide grooves (20) are arranged corresponding to the connecting shaft (15), and the connecting shaft (15) is slidably connected to the inside of the slide grooves (20).

2. The pelletizing machine for biomass pellet fuel production according to claim 1, characterized in that: The material clearing assembly comprises a mounting plate (25), wherein the mounting plate (25) is arranged below the second spring (24), wherein a plurality of first springs (21) are fixedly connected inside the mounting plate (25), wherein the tops of the plurality of first springs (21) are fixedly connected to a top plate (22), wherein the plurality of top plates (22) are respectively arranged corresponding to the connecting plate (14), wherein a clearing plate (23) is arranged on the top of the top plate (22), wherein one end of the clearing plate (23) is fixedly connected to a plurality of second springs (24), wherein one end of the plurality of second springs (24) is fixedly connected to the connecting plate (14), wherein the top plate (22) is in contact with the clearing plate (23), and the width of the clearing plate (23) is greater than the width of the top plate (22).

3. The pelletizing machine for biomass pellet fuel production according to claim 2, characterized in that: The material cleaning assembly also includes a hydraulic rod (26), which is arranged at the bottom of the mounting plate (25), the mounting plate (25) and the hydraulic rod (26) are movably connected, the hydraulic rod (26) is fixedly connected to the inside of the connecting chamber (2), the third rotating shaft (13) is rotatably connected to the inside of the hydraulic rod (26), and the third rotating shaft (13) and the mounting plate (25) are rotatably connected.

4. The pelletizing machine for biomass pellet fuel production according to claim 3, characterized in that: The discharging assembly comprises a concave ring (27), wherein the concave ring (27) is fixedly connected to the inside of the molding chamber (3), a second driving motor (28) is fixedly connected to one side of the top of the molding chamber (3), a fourth rotating shaft (29) is fixedly connected to the output end of the second driving motor (28), one end of the fourth rotating shaft (29) is fixedly connected to a fifth gear (30), one side of the fifth gear (30) is meshingly connected to a first gear ring (31), a ring mill (32) is movably sleeved inside the first gear ring (31), the first gear ring (31) is rotatably connected to the inside of the concave ring (27), the fourth rotating shaft (29) is rotatably connected to the concave ring (27), a cutting knife (33) is fixedly connected to the bottom of the first gear ring (31), and the blade of the cutting knife (33) is tangent to the outer surface of the ring mill (32).

5. The pelletizing machine for biomass pellet fuel production according to claim 4, characterized in that: The discharging assembly further comprises a first gear ring (31), the first gear ring (31) is meshingly connected to one side of the fifth gear (30), a ring grinder (32) is movably sleeved inside the first gear ring (31), and a cutting knife (33) is fixedly connected to the bottom of the first gear ring (31).

6. The pelletizing machine for biomass pellet fuel production according to claim 5, characterized in that: The width of the slide groove (20) can be covered by the pressure roller (16), the shape of the cleaning plate (23) is a "7" shape, and the bottom of the cleaning plate (23) has a cutout.

7. The pelletizing machine for biomass pellet fuel production according to claim 6, characterized in that: The diameter of the mounting plate (25) is equal to the inner diameter of the connecting chamber (2), the bottom of the pressing roller (16) is equal to the bottom of the ring mill (32), and the height of the pressing roller (16) is equal to the height of a row of extrusion holes at the bottom of the ring mill (32).

8. The pelletizing machine for biomass pellet fuel production according to claim 7, characterized in that: The cutting edge of the cutting knife (33) is tangent to the outer surface of the ring grinder (32), and a certain distance is left between the cutting knife (33) and the inner wall of the forming chamber (3).

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