Biomass particle briquetting device

Abstract

The utility model belongs to the technical field of biomass particle briquetting equipment, and particularly relates to a biomass particle briquetting device which comprises a stock bin, a plurality of fixing plates are welded to the inner wall of the stock bin and fixedly connected with a circular mold compression bin in a matched mode, and a feeding hopper is fixedly connected to a top end opening of the circular mold compression bin. A plurality of extrusion discharging openings are formed in the circumferential surface of the circular mold compression bin, a first limiting ring is fixedly connected to the inner wall of the stock bin, a second limiting ring is fixedly connected to the circumferential surface of the bottom end of the circular mold compression bin, and the first limiting ring and the second limiting ring are rotationally provided with a rotating sieve tray in a matched mode; when the device is used, chippings and residues generated in the breaking process of biomass particles can be effectively recycled and reused, waste of resources is reduced, the chippings are screened and removed in time, the chippings cannot be conveyed and discharged along with finished products, the phenomenon that the finished products contain the residues and the chippings is avoided, and the service life of the finished products is prolonged. And the quality of finished products is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of biomass particle briquetting equipment, in particular to a biomass particle briquetting device. Background Art

[0002] Biomass pellets are a type of solid fuel made from biomass materials. Biomass raw materials such as agricultural waste straw, rice husks, wood chips, etc., and forestry waste sawdust, bark, branches, etc. are usually converted into granular fuels with high density, high calorific value and low pollution through compression and molding technology. Biomass pellet briquetting equipment is a special equipment used to compress biomass raw materials such as straw, wood chips, rice husks, etc. into high-density, high-calorific value granular fuels.

[0003] The existing biomass pellet briquetting device is mainly composed of a silo, a feed hopper, a ring die compression chamber and a pressure roller assembly. When briquetting biomass raw materials, the biomass raw materials are first put into the ring die compression chamber through the feed hopper, and the motor is started to rotate the two pressure rollers. In the ring die compression chamber, the raw materials are squeezed by the pressure rollers and the ring die, and are squeezed upward through the die holes into blocks to form granular fuel, thereby being able to make granular fuel.

[0004] In the existing biomass pellet briquetting device, after the raw materials are put into the biomass briquetting machine, the biomass briquetting machine will squeeze the raw materials into blocks through the extrusion port. As the extrusion process continues, the block-shaped biomass particles become longer and longer. When the particle length reaches a certain extent, they will break by themselves to form biomass particles of appropriate size. However, the biomass particles will produce debris and residues in the process of breaking and falling off. In the existing technology, there is a lack of effective recovery and reuse mechanism for the debris and residues generated in the process of biomass particle breaking, which leads to waste of resources and increases the cost of cleaning and processing. If these debris are not screened and removed in time, they will be transported together with the finished product, resulting in the quality of the finished product containing residue and debris, affecting the quality of the finished product. Therefore, a biomass pellet briquetting device is proposed to address the above problems. Utility Model Content

[0005] In order to make up for the deficiencies of the prior art and solve the problems raised by the above-mentioned background technology, the present invention proposes a biomass particle briquetting device.

[0006] The technical solution adopted by the present invention to solve its technical problems is as follows: a biomass particle briquetting device described in the present invention includes a silo, a plurality of fixed plates are welded on the inner wall of the silo, the plurality of fixed plates are cooperated and fixedly connected with a ring die compression silo, a feed hopper is fixedly connected to the top port of the ring die compression silo, a plurality of extrusion outlets are opened on the circumferential surface of the ring die compression silo, a first limiting ring is fixedly connected to the inner wall of the silo, a second limiting ring is fixedly connected to the circumferential surface of the bottom end of the ring die compression silo, a rotating sieve plate is rotatably installed with the first limiting ring and the second limiting ring, a rotating column is rotatably installed between the ring die compression silo and the silo, a plurality of teeth are fixedly connected to the upper end of the circumferential surface of the rotating column, and a plurality of teeth are fixedly connected to the bottom end of the circumferential surface of the rotating column. The cam is connected to the gear train of the first motor and the gear is engaged with the gear teeth. A scraper is fixed on the rotating column, and the scraper contacts the bottom inner wall of the hopper. A discharge hole for impurities and debris is provided at the bottom of the hopper, and a guide hopper is fixed at the port of the discharge hole for impurities and debris. The other port of the guide hopper is fixed on the cylinder. A fixed block is installed on the outer wall of the hopper, and a cylinder is installed on the fixed block. A second motor is installed on the top of the cylinder, and a rotating rod is connected to the output end of the second motor. A spiral conveying blade is fixed on the outer surface of the rotating rod. The top of the cylinder The end is connected with a return pipe. In the process of extruding biomass raw materials into blocks, after the biomass raw materials enter the ring die compression chamber, the raw materials are squeezed by the rotation of the internal pressure roller and squeezed into blocks through the extrusion outlet. The extruded granular fuel is gradually moved out of the extrusion outlet. As the extrusion process continues, the block-forming biomass particles become longer and longer. When the particle length reaches a certain extent, they will break by themselves to form biomass particles of appropriate size and fall onto the rotating sieve plate. The first motor is started to rotate the gear, forcing the teeth to drive the rotating column to rotate, and then the rotating sieve plate also rotates. The block-forming granular fuel is transported under the continuous rotation of the rotating sieve plate. With the cooperation of the baffle, the block-forming granular fuel passes The biomass particles are discharged from the discharge port. The debris generated in the process of breaking and falling off will fall into the bottom of the silo through the leakage holes on the rotating sieve plate. At the same time, the rotating column will also drive the scraper to rotate, so that the debris that falls into the bottom of the silo enters the guide hopper through the impurity and debris discharge hole, and then flows into the cylinder body. The second motor is started to rotate the spiral conveying blades, so that the debris can be transported and lifted, and re-entered into the feed hopper of the briquetting device through the return pipe, so that the debris residue generated in the process of biomass particles breaking can be effectively recovered and reused, reducing the waste of resources. In addition, by timely screening and removing the debris, the debris will not be transported and discharged together with the finished product, avoiding the phenomenon of residue and debris in the finished product, and ensuring the quality of the finished product.

[0007] Preferably, a transverse plate is installed in the feed hopper, a third motor is installed on the transverse plate, an output end of the third motor is connected to a rotating column, a plurality of first crushing blades are fixed on the rotating column, a plurality of second crushing blades are fixed on the inner wall of the feed hopper, and the first crushing blades and the second crushing blades are staggered. When the biomass raw material is put into the feed hopper, the third motor is started to make the rotating column drive the first crushing blade to rotate, and with the cooperation of the second crushing blade, the biomass raw material can be crushed. By setting up a crushing mechanism, larger particles or irregularly shaped materials in the raw material can be effectively crushed into smaller sizes, which helps to form more uniform particles in the subsequent briquetting process.

[0008] Preferably, a shell cover is fixedly connected to the transverse plate, and the third motor is arranged in the shell cover, three hollow tubes are fixedly connected between the shell cover and the inner wall of the feed hopper, one end of the hollow tube away from the shell cover passes through the feed hopper and is connected to the annular tube, a plurality of atomizing nozzles are equipped on the hollow tube, an annular tube is fixedly connected to the outer circumferential surface of the feed hopper, and a water inlet pipe is connected to the annular tube. During the process of crushing the biomass raw materials, the water inlet pipe is connected to an external water pump, and the water pump is operated to make water flow into the annular tube through the water inlet pipe, and finally sprayed out through the atomizing nozzle. By setting up a spray mechanism, the dust generated during the crushing of the biomass raw materials can be effectively suppressed to prevent the dust from floating everywhere, thereby improving the working environment, and the moist biomass material is more easily compressed, thereby improving the production efficiency of the briquetting.

[0009] Preferably, a fourth motor is installed at the bottom of the ring die compression chamber, and a connecting disk is installed at the output end of the fourth motor. Both ends of the connecting disk are rotatably installed with pressure rollers. When the biomass raw materials are briquette, after the raw materials are put into the ring die compression chamber, the fourth motor is started to rotate the pressure rollers. Through the rotation of the pressure rollers, the raw materials are pressurized and squeezed into blocks.

[0010] Preferably, a discharge port is provided on the silo, a discharge hopper is fixedly connected to the port of the discharge port, a baffle is provided on one side of the port of the discharge port, and the baffle is fixedly connected to the silo, and the bottom side of the baffle is in contact with the outer surface of the rotating sieve plate. When the device is used, the granular fuel in blocks is transported under the continuous rotation of the rotating sieve plate, and with the cooperation of the baffle, the granular fuel in blocks is discharged through the discharge port.

[0011] The utility model is beneficial in that:

[0012] 1. When the utility model is in use, after the biomass raw materials enter the ring die compression chamber, the raw materials are squeezed by the rotation of the internal pressure roller, and are squeezed into blocks through the extrusion outlet, and the extruded granular fuel is gradually moved out of the extrusion outlet. As the extrusion process continues, the block-shaped biomass particles become longer and longer. When the particle length reaches a certain extent, they will break by themselves to form biomass particles of appropriate size and fall onto the rotating sieve plate. The first motor is started to rotate the gear, forcing the teeth to drive the rotating column to rotate, and then the rotating sieve plate also rotates. Under the continuous rotation of the rotating sieve plate, the block-shaped granular fuel is transported, and with the cooperation of the baffle, the block-shaped granular fuel is discharged through the discharge port. The debris generated during the breaking and falling of biomass particles will fall into the bottom of the silo through the leakage holes on the rotating sieve plate. At the same time, the rotating column will drive the scraper to rotate, so that the debris falling into the bottom of the silo will enter the guide hopper through the impurity and debris discharge hole, and then flow into the cylinder body. The second motor is started to rotate the spiral conveying blades, so that the debris can be transported and lifted, and re-entered into the feed hopper of the briquetting device through the return pipe, so that the debris residue generated in the breaking process of biomass particles can be effectively recovered and reused, reducing the waste of resources. In addition, by timely screening and removing the debris, the debris will not be transported and discharged together with the finished product, avoiding the phenomenon of residue and debris in the finished product, and ensuring the quality of the finished product.

[0013] 2. When the biomass raw material is put into the feed hopper, the utility model starts the third motor to make the rotating column drive the first crushing blade to rotate. With the cooperation of the second crushing blade, the biomass raw material can be crushed. By setting the crushing mechanism, the larger particles or irregularly shaped materials in the raw material can be effectively crushed into smaller sizes, which helps to form more uniform particles in the subsequent briquetting process; in the process of crushing the biomass raw material, by setting the spraying mechanism, the dust generated in the process of crushing the biomass raw material can be effectively suppressed to prevent the dust from flying everywhere, thereby improving the working environment, and the moist biomass material is more easily compressed, thereby improving the production efficiency of briquetting. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0015] Figure 1 Schematic diagram of the overall three-dimensional structure of the device;

[0016] Figure 2It is a schematic diagram of the cross-sectional three-dimensional structure of the device;

[0017] Figure 3 This is a schematic diagram of the three-dimensional structure of the silo and ring die compression silo assembly;

[0018] Figure 4 This is a schematic diagram of the sectional three-dimensional structure of the silo and ring die compression chamber;

[0019] Figure 5 This is a schematic diagram of the three-dimensional structure of the silo bottom component;

[0020] Figure 6 This is a schematic diagram of the cross-sectional three-dimensional structure of the ring die compression chamber;

[0021] Figure 7 It is a schematic diagram of the three-dimensional structure of the crushing mechanism.

[0022] In the figure: 1. silo; 2. fixed plate; 3. ring die compression chamber; 4. feed hopper; 5. extrusion discharge port; 6. first limiting ring; 7. second limiting ring; 8. rotating sieve plate; 9. rotating column; 10. teeth; 11. connecting rod; 12. first motor; 13. gear; 14. impurity and debris discharge hole; 15. guide hopper; 16. scraper; 17. cylinder; 18. second motor; 19. spiral conveying blade; 20. return pipe; 21. horizontal plate; 22. third motor; 23. rotating column; 24. first crushing blade; 25. second crushing blade; 26. shell; 27. hollow tube; 28. atomizing nozzle; 29. ​​annular tube; 30. water inlet pipe; 31. fourth motor; 32. connecting plate; 33. pressure roller; 34. discharge port; 35. discharge hopper; 36. baffle; 37. fixing block. DETAILED DESCRIPTION

[0023] The following will be combined with the accompanying 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 embodiments described 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 making creative efforts are within the scope of protection of the present invention.

[0024] See also Figure 1-6As shown, a biomass pellet briquetting device includes a silo 1, a plurality of fixed plates 2 are welded on the inner wall of the silo 1, the plurality of fixed plates 2 are cooperated and fixedly connected with a ring die compression silo 3, a feed hopper 4 is fixedly connected to the top port of the ring die compression silo 3, a plurality of extrusion outlets 5 are opened on the circumferential surface of the ring die compression silo 3, a first limiting ring 6 is fixedly connected to the inner wall of the silo 1, a second limiting ring 7 is fixedly connected to the bottom circumferential surface of the ring die compression silo 3, the first limiting ring 6 and the second limiting ring 7 are cooperated to rotate and install a rotating sieve plate 8, a rotating column 9 is rotatably installed between the ring die compression silo 3 and the silo 1, a plurality of teeth 10 are fixedly connected to the upper end of the circumferential surface of the rotating column 9, a plurality of connecting rods 11 are fixedly connected to the bottom end of the circumferential surface of the rotating column 9, and the other end of the connecting rod 11 is fixedly connected to the rotating sieve plate 8. On the bottom side, a first motor 12 is installed on the bottom side of the ring die compression bin 3, and a gear 13 is installed on the output end of the first motor 12, and the gear 13 is meshed with the teeth 10. A scraper 16 is fixedly connected to the rotating column 9, and the scraper 16 is in contact with the bottom inner wall of the silo 1. An impurity and debris discharge hole 14 is opened at the bottom of the silo 1, and a guide hopper 15 is fixedly connected to the end of the impurity and debris discharge hole 14. The other end of the guide hopper 15 is fixedly connected to the cylinder 17. A fixed block 37 is installed on the outer wall of the silo 1, and the cylinder 17 is installed on the fixed block 37. A second motor 18 is installed on the top of the cylinder 17. The output end of the second motor 18 is connected to a rotating rod, and a spiral conveying blade 19 is fixed on the outer surface of the rotating rod. The top of the cylinder 17 is connected to a return pipe 20;In the process of extruding the biomass raw materials into blocks, after the biomass raw materials enter the ring die compression chamber 3, the raw materials are squeezed by the rotation of the internal pressure roller 33, and are squeezed into blocks through the extrusion outlet 5, and the extruded block granular fuel is gradually moved out of the extrusion outlet 5. As the extrusion process continues, the block biomass particles become longer and longer. When the particle length reaches a certain extent, they will break by themselves to form biomass particles of appropriate size and fall onto the rotating sieve plate 8. The first motor 12 is started to rotate the gear 13, forcing the teeth 10 to drive the rotating column 9 to rotate, and then the rotating sieve plate 8 also rotates. Under the continuous rotation of the rotating sieve plate 8, the block granular fuel is transported, and with the cooperation of the baffle 36, the block granular fuel is discharged through the discharge port 34. The debris generated during the breaking and falling of biomass particles will fall into the bottom of the silo 1 through the leak holes on the rotating sieve plate 8. At the same time, the rotating column 9 will also drive the scraper 16 to rotate, so that the debris that falls into the bottom of the silo 1 enters the guide hopper 15 through the impurity and debris discharge hole 14, and then flows into the cylinder 17. The second motor 18 is started to rotate the spiral conveying blade 19, so that the debris can be transported and lifted, and then re-entered into the feed hopper 4 of the briquetting device through the return pipe 20. In this way, the debris and residue generated during the breaking process of biomass particles can be effectively recovered and reused, reducing the waste of resources. In addition, by timely screening and removing the debris, the debris will not be transported and discharged with the finished product, avoiding the phenomenon of residue and debris in the finished product, and ensuring the quality of the finished product.

[0025] See also Figure 7 As shown, a transverse plate 21 is installed in the feed hopper 4, and a third motor 22 is installed on the transverse plate 21. The output end of the third motor 22 is connected to a rotating column 23, and a plurality of first crushing blades 24 are fixed on the rotating column 23. A plurality of second crushing blades 25 are fixed on the inner wall of the feed hopper 4, and the first crushing blades 24 and the second crushing blades 25 are staggered. When the biomass raw material is put into the feed hopper 4, the third motor 22 is started to make the rotating column 23 drive the first crushing blade 24 to rotate. With the cooperation of the second crushing blade 25, the biomass raw material can be crushed. By setting a crushing mechanism, larger particles or irregularly shaped materials in the raw material can be effectively crushed into smaller sizes, which helps to form more uniform particles in the subsequent briquetting process.

[0026] See also Figure 1As shown, a shell cover 26 is fixedly connected to the transverse plate 21, and the third motor 22 is arranged in the shell cover 26, and three hollow tubes 27 are fixedly connected between the shell cover 26 and the inner wall of the feed hopper 4, and one end of the hollow tube 27 away from the shell cover 26 passes through the feed hopper 4 and is connected to the annular tube 29, and a plurality of atomizing nozzles 28 are equipped on the hollow tube 27, and an annular tube 29 is fixedly connected to the outer circumferential surface of the feed hopper 4, and the annular tube 29 is connected to the water inlet pipe 30; in the process of crushing the biomass raw materials, the water inlet pipe 30 is connected to a water pump, and the water pump is operated to make water flow into the annular tube 29 through the water inlet pipe 30, and finally sprayed out through the atomizing nozzle 28. By setting up a spray mechanism, the dust generated in the process of crushing the biomass raw materials can be effectively suppressed to prevent the dust from flying everywhere, thereby improving the working environment, and the moist biomass material is more easily compressed, thereby improving the production efficiency of briquetting.

[0027] See also Figure 3 and Figure 6 As shown, a fourth motor 31 is installed at the bottom of the ring die compression bin 3, and a connecting disk 32 is installed at the output end of the fourth motor 31. Pressure rollers 33 are rotatably installed at both ends of the connecting disk 32. A discharge port 34 is opened on the silo 1, and a discharge hopper 35 is fixedly connected to the port of the discharge port 34. A baffle 36 is provided on one side of the port of the discharge port 34, and the baffle 36 is fixedly connected to the silo 1, and the bottom side of the baffle 36 is in contact with the outer surface of the rotating sieve plate 8; when briquetting the biomass raw material, after the raw material is put into the ring die compression bin 3, the fourth motor 31 is started to rotate the pressure roller 33, and the raw material is pressurized by the rotation of the pressure roller 33 to be squeezed into blocks. The granular fuel in blocks is transported under the continuous rotation of the rotating sieve plate 8, and the granular fuel in blocks is discharged through the discharge port 34 with the cooperation of the baffle 36.

[0028] Working principle: Due to the existing biomass pellet briquetting device, after the raw materials are put into the biomass briquetting machine, the biomass briquetting machine will squeeze the raw materials into blocks through the extrusion port. As the extrusion process continues, the biomass particles in blocks become longer and longer. When the particle length reaches a certain extent, they will break by themselves to form biomass particles of appropriate size. However, the biomass particles will produce debris residues in the process of breaking and falling off. In the existing technology, there is a lack of effective recovery and reuse mechanism for the debris residues generated during the biomass particle breaking process, which leads to waste of resources and increases the cost of cleaning and processing. , and if these debris are not screened and removed in time, they will be transported together with the finished product, resulting in the presence of residues and debris in the finished product, affecting the quality of the finished product; therefore, in order to solve the above problem, a biomass pellet briquetting device is proposed; in the process of extruding the biomass raw material into blocks, after the biomass raw material enters the ring die compression chamber 3, the raw material is squeezed by the rotation of the internal pressing roller 33, and is squeezed into blocks through the extrusion outlet 5, and the extruded granular fuel is gradually removed from the extrusion outlet 5. As the extrusion process continues, the biomass particles in the blocks become longer and longer. When the particle length reaches a certain extent, They will break by themselves to form biomass particles of appropriate size and fall onto the rotating sieve plate 8. The first motor 12 is started to rotate the gear 13, forcing the teeth 10 to drive the rotating column 9 to rotate, and then the rotating sieve plate 8 is rotated. Under the continuous rotation of the rotating sieve plate 8, the agglomerated granular fuel is transported. With the cooperation of the baffle 36, the agglomerated granular fuel is discharged through the discharge port 34. The debris generated in the process of breaking and falling of the biomass particles will fall into the bottom of the silo 1 through the leakage holes on the rotating sieve plate 8. At the same time, the rotating column 9 will also drive the scraper 16 to rotate, so that the biomass particles falling into the silo 1 will be discharged. The debris at the bottom of the silo 1 enters the guide hopper 15 through the impurity and debris discharge hole 14, and then flows into the cylinder 17. The second motor 18 is started to rotate the spiral conveying blade 19, so that the debris can be transported and lifted, and then re-entered into the feed hopper 4 of the briquetting device through the return pipe 20, so that the debris residue generated during the biomass particle fracture process can be effectively recovered and reused, reducing the waste of resources. In addition, by timely screening and removing the debris, the debris will not be transported and discharged together with the finished product, avoiding the phenomenon of residue and debris in the finished product, and ensuring the quality of the finished product.

[0029] When the biomass raw material is put into the feed hopper 4, the third motor 22 is started, and the rotating column 23 drives the first crushing blade 24 to rotate. With the cooperation of the second crushing blade 25, the biomass raw material can be crushed. By setting up a crushing mechanism, larger particles or irregularly shaped materials in the raw material can be effectively crushed into smaller sizes, which helps to form more uniform particles in the subsequent briquetting process; in the process of crushing the biomass raw material, the water inlet pipe 30 is connected to a water pump. Through the operation of the water pump, water flows into the annular pipe 29 through the water inlet pipe 30 and is finally sprayed out through the atomizing nozzle 28. By setting up a spraying mechanism, the dust generated in the process of crushing the biomass raw material can be effectively suppressed to prevent the dust from floating everywhere, thereby improving the working environment, and the moist biomass material is more easily compressed, thereby improving the production efficiency of briquetting.

[0030] Throughout this specification, references to terms such as "one embodiment," "example," or "specific example" indicate that a specific feature, structure, material, or characteristic described in conjunction with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of these terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0031] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention, and such changes and improvements fall within the scope of the present invention as claimed.

Claims

1. A biomass particle briquetting device, characterized by: The invention comprises a silo (1), wherein a plurality of fixed plates (2) are welded on the inner wall of the silo (1), the plurality of fixed plates (2) are fixedly connected with a ring die compression silo (3), a feed hopper (4) is fixedly connected at the top port of the ring die compression silo (3), a plurality of extrusion outlets (5) are provided on the circumferential surface of the ring die compression silo (3), a first limiting ring (6) is fixedly connected to the inner wall of the silo (1), a second limiting ring (7) is fixedly connected to the circumferential surface of the bottom end of the ring die compression silo (3), a rotating sieve plate (8) is rotatably mounted on the first limiting ring (6) and the second limiting ring (7), a rotating column (9) is rotatably mounted between the ring die compression silo (3) and the silo (1), a plurality of teeth (10) are fixedly connected to the upper end of the circumferential surface of the rotating column (9), a plurality of connecting rods are fixedly connected to the bottom end of the circumferential surface of the rotating column (9), and a plurality of connecting rods are fixedly connected to the bottom end of the circumferential surface of the rotating column (9). A connecting rod (11) is provided, and the other end of the connecting rod (11) is fixedly connected to the bottom side of the rotating sieve plate (8); a first motor (12) is installed on the bottom side of the ring die compression bin (3); a gear (13) is installed on the output end of the first motor (12), and the gear (13) and the teeth (10) are meshed with each other; a scraper (16) is fixedly connected to the rotating column (9), and the scraper (16) is in contact with the bottom inner wall of the silo (1); an impurity and debris discharge hole (14) is provided at the bottom of the silo (1); a guide hopper (15) is fixedly connected to the end of the impurity and debris discharge hole (14); the other end of the guide hopper (15) is fixedly connected to the cylinder (17); a fixed block (37) is installed on the outer wall of the silo (1), and the cylinder (17) is installed on the fixed block (37).

2. The biomass particle briquetting device according to claim 1, characterized in that: A second motor (18) is installed at the top of the cylinder (17), the output end of the second motor (18) is connected to a rotating rod, a spiral conveying blade (19) is fixed on the outer surface of the rotating rod, and the top of the cylinder (17) is connected to a return pipe (20).

3. The biomass particle briquetting device according to claim 1, characterized in that: A transverse plate (21) is installed in the feed hopper (4), a third motor (22) is installed on the transverse plate (21), an output end of the third motor (22) is connected to a rotating column (23), a plurality of first crushing blades (24) are fixed on the rotating column (23), and a plurality of second crushing blades (25) are fixed on the inner wall of the feed hopper (4), and the first crushing blades (24) and the second crushing blades (25) are arranged in an alternating manner.

4. The biomass particle briquetting device according to claim 3, characterized in that: A shell cover (26) is fixedly connected to the transverse plate (21), and the third motor (22) is arranged in the shell cover (26). Three hollow tubes (27) are fixedly connected between the shell cover (26) and the inner wall of the feed hopper (4). One end of the hollow tube (27) away from the shell cover (26) passes through the feed hopper (4) and is connected to the annular tube (29). A plurality of atomizing nozzles (28) are installed on the hollow tube (27). An annular tube (29) is fixedly connected to the outer circumferential surface of the feed hopper (4), and the annular tube (29) is connected to a water inlet pipe (30).

5. The biomass particle briquetting device according to claim 1, characterized in that: A fourth motor (31) is installed at the bottom of the ring die compression chamber (3), a connecting disk (32) is installed at the output end of the fourth motor (31), and pressure rollers (33) are rotatably installed at both ends of the connecting disk (32).

6. The biomass particle briquetting device according to claim 1, characterized in that: The silo (1) is provided with a discharge port (34), a discharge hopper (35) is fixedly connected to the end of the discharge port (34), a baffle (36) is provided on one side of the end of the discharge port (34), and the baffle (36) is fixedly connected to the silo (1), and the bottom side of the baffle (36) is in contact with the outer surface of the rotating sieve plate (8).

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