Granulating device for biomass fuel

Abstract

The utility model discloses a granulation device for biomass fuel, and relates to the technical field of granulation devices. The device comprises a driving shell and a slide way, wherein a reversing mechanism, an extrusion mechanism and a backflow mechanism are arranged on the driving shell and the slide way; the reversing mechanism comprises a discharging assembly and a driving assembly, the discharging assembly comprises a fixing column fixedly connected to a driving shell, the fixing column is fixedly connected with a fixing block, the fixing block is fixedly connected with a discharging barrel, the discharging barrel is provided with a sliding groove, the sliding groove is slidably connected with a sliding block, the discharging barrel is slidably connected with a granulation barrel, and the granulation barrel is fixedly connected with the sliding block. The granulation cylinder is provided with granulation holes and a gear groove. According to the utility model, by arranging the reversing mechanism, the granulation cylinder and the extrusion mechanism rotate reversely to drive materials to slide between the granulation hole and the extrusion block, so that the materials are subjected to interaction force of the extrusion block and the granulation cylinder, more materials can be quickly extruded into granules, and the granulation efficiency of the device is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of granulation devices, in particular to a granulation device for biomass fuel. Background Art

[0002] Biomass fuel refers to the burning of biomass materials as fuel, generally agricultural and forestry wastes such as straw, sawdust, bagasse, rice bran, etc., which is mainly different from fossil fuels. In national policies and environmental protection standards, direct combustion of biomass is a highly polluting fuel and is only used in large stoves in rural areas and is not allowed in cities. The application of biomass fuel is actually mainly biomass molded fuel, which uses agricultural and forestry waste as raw materials, and is made into various shapes such as blocks and granules through processes such as crushing, mixing, extrusion, and drying. It is a new type of clean fuel that can be directly burned.

[0003] At present, some biomass fuel pelletizing devices use an extruder to rotate and extrude materials into a shaping hole to form pellets during the production and pelletizing process. However, since the extruded materials are in powder form and are easy to disperse, part of the materials will move with the rotation of the extruder in the device during the pelletizing process, making it impossible for the materials to be extruded into pellets faster. The prolonged pelletizing time leads to a decrease in the pelletizing efficiency of the device. Utility Model Content

[0004] The utility model aims to provide a granulation device for biomass fuel, which is provided with a reverse mechanism to rotate the granulation cylinder and the extrusion mechanism in the opposite direction, so as to drive the material to slide between the granulation hole and the extrusion block, so that the material is subjected to the interaction force between the extrusion block and the granulation cylinder, thereby solving the problem that part of the material moves with the rotation of the extruder in the device during the granulation process, so that the material cannot be extruded into granules faster.

[0005] In order to solve the above technical problems, the utility model is realized by the following technical solutions:

[0006] The utility model is a granulating device for biomass fuel, comprising a driving shell and a slideway, wherein the driving shell and the slideway are provided with a reversing mechanism, an extruding mechanism and a reflux mechanism;

[0007] Furthermore, the reverse mechanism includes a discharging component and a driving component, the discharging component includes a fixed column fixedly connected to the bottom surface of the driving shell, the front side of the fixed column is fixedly connected to a fixed block, the front side of the fixed block is fixedly connected to a discharging barrel, the inner wall of the discharging barrel is provided with a sliding groove, the inner wall of the sliding groove is slidably connected to a sliding block, the top surface of the discharging barrel is slidably connected to a granulating barrel, the bottom surface of the granulating barrel is fixedly connected to the top surface of the sliding block, the inner wall of the granulating barrel is provided with a plurality of granulating holes, and the outer wall of the granulating barrel is provided with a plurality of gear grooves.

[0008] Furthermore, the drive assembly includes a dual-axis motor fixedly connected to the inner wall of the drive housing, the bottom output end of the dual-axis motor is fixedly connected to a gear, the bottom surface of the gear is rotatably connected to the top surface of the fixed column, and the gear is meshed with the gear groove.

[0009] Furthermore, the extrusion mechanism includes a trapezoidal groove assembly, a pulley assembly and an extrusion assembly. The trapezoidal groove assembly includes a barrel cover fixedly connected to the front side of the driving shell. A trapezoidal groove is opened on the outer wall of the granulating barrel. A trapezoidal slider is fixedly connected to the bottom surface of the barrel cover. The inner wall of the trapezoidal groove is slidably connected to the trapezoidal slider.

[0010] Furthermore, the pulley assembly includes a first pulley fixedly connected to the top output end of the dual-axis motor, the top surface of the barrel cover is rotatably connected to a first rotating shaft, the bottom end of the first rotating shaft extends to the interior of the barrel cover, the top end of the first rotating shaft is fixedly connected to a second pulley, and a belt is provided between the first pulley and the second pulley.

[0011] Furthermore, the extrusion assembly includes a connecting rod fixedly connected to the bottom end of the first rotating shaft, the bottom surface of the connecting rod is fixedly connected to a scraper, the front and rear ends of the connecting rod are fixedly connected to extrusion blocks, and the bottom surface of the extrusion block is slidably connected to the inner bottom wall of the granulation cylinder.

[0012] Furthermore, the reflux mechanism includes a filter assembly, an auger assembly and a reflux assembly. The filter assembly includes a second motor fixedly connected to the right side of the fixed column. The left and right sides of the slide are rotatably connected to the second rotating shaft. The rear end of the right second rotating shaft extends to the back of the slide. The rear end of the second rotating shaft is fixedly connected to the output end of the second motor. A conveyor belt is sleeved between the two second rotating shafts. A plurality of filter holes are opened on the conveyor belt. A baffle is provided on the slide. The outer wall of the slide is fixedly connected to a plurality of support columns.

[0013] Furthermore, the auger assembly includes a feed box fixedly connected to the outer wall of the cylinder cover, the top surface of the feed box is fixedly connected to the third motor, the bottom surface of the feed box is fixedly connected to the auger pipe, the inner wall of the feed box is rotatably connected to the auger rod, the outer wall of the auger rod is fixedly connected to the spiral blade, and the top end of the auger rod extends to the top surface of the feed box and is fixedly connected to the output end of the third motor.

[0014] Furthermore, the reflux assembly includes a lower silo fixedly connected to the right side of the slideway, the inner bottom wall of the lower silo is rotatably connected to the bottom end of the auger rod, the bottom end of the auger pipe is fixedly connected to the inner bottom wall of the lower silo, and a feed port is provided at the bottom end of the auger pipe.

[0015] The utility model has the following beneficial effects:

[0016] 1. By setting up a reverse mechanism, the granulation cylinder and the extrusion mechanism can be rotated in the opposite direction, driving the material to slide between the granulation hole and the extrusion block, so that the material is subjected to the interaction force between the extrusion block and the granulation cylinder, so that the extrusion force of the granulation is strengthened, and more materials can be quickly squeezed into granules, which reduces the granulation time and improves the granulation efficiency of the device.

[0017] 2. By setting up the reflux mechanism, the feed amount of materials can be controlled by auger transportation, so that the granulation process can proceed smoothly, the service life of the device can be extended, and the unextruded or scattered materials can be screened out from the finished products and refluxed into the device for secondary recycling and processing, which reduces costs and improves the utilization rate of materials.

[0018] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for describing the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0020] Figure 1 It is a schematic diagram of the overall structure of the front side of the utility model;

[0021] Figure 2 It is a schematic diagram of the overall structure of the back side of the utility model;

[0022] Figure 3 It is a left sectional structural schematic diagram of the utility model;

[0023] Figure 4 It is a schematic diagram of the front cross-section structure of the utility model;

[0024] Figure 5 For this utility model Figure 3 A schematic diagram of the enlarged structure at A in the middle;

[0025] Figure 6 For this utility model Figure 3 Schematic diagram of the enlarged structure at point B in the middle.

[0026] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0027] 1. Driving housing; 2. Slideway; 3. Fixed column; 4. Fixed block; 5. Discharging barrel; 6. Slideway; 7. Sliding block; 8. Granulating barrel; 9. Granulating hole; 10. Gear groove; 11. Double-axis motor; 12. Gear; 13. Cylinder cover; 14. Trapezoidal groove; 15. Trapezoidal sliding block; 16. First pulley; 17. Second pulley; 18. Belt; 19. First rotating shaft; 20. Connecting rod; 21. Scraper; 22. Extrusion block; 23. Second motor; 24. Second rotating shaft; 25. Conveyor belt; 26. Filter hole; 27. Baffle; 28. Support column; 29. ​​Feed box; 30. Third motor; 31. Auger pipe; 32. Auger rod; 33. Spiral blade; 34. Discharging bin; 35. Feeding port. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0029] See also Figure 1-6 As shown, the utility model is a granulation device for biomass fuel, comprising a driving housing 1 and a slideway 2, on which a reversing mechanism, an extrusion mechanism and a reflux mechanism are arranged;

[0030] The reverse mechanism includes a discharging component and a driving component. The discharging component includes a fixed column 3 fixedly connected to the bottom surface of the driving housing 1, the front of the fixed column 3 is fixedly connected to a fixed block 4, the front of the fixed block 4 is fixedly connected to a discharging barrel 5, the inner wall of the discharging barrel 5 is provided with a slide groove 6, the inner wall of the slide groove 6 is slidably connected to a slider 7, the top surface of the discharging barrel 5 is slidably connected to a granulating barrel 8, the bottom surface of the granulating barrel 8 is fixedly connected to the top surface of the slider 7, the inner wall of the granulating barrel 8 is provided with a plurality of granulating holes 9, and the outer wall of the granulating barrel 8 is provided with a plurality of gear grooves 10.

[0031] Among them Figure 5 and Figure 6 As shown, the drive assembly includes a dual-axis motor 11 fixedly connected to the inner wall of the drive housing 1, and a gear 12 is fixedly connected to the bottom output end of the dual-axis motor 11. The bottom surface of the gear 12 is rotatably connected to the top surface of the fixed column 3, and the gear 12 is meshed with the gear groove 10.

[0032] By setting up a reverse mechanism, the granulating cylinder and the extrusion mechanism can rotate in the opposite direction, driving the material to slide between the granulating hole and the extrusion block, so that the material is subjected to the interaction force between the extrusion block and the granulating cylinder, and the extrusion force of the granulation is enhanced, so that more material can be squeezed into granules quickly, reducing the granulation time and improving the granulation efficiency of the device.

[0033] Among them Figure 3 , Figure 5 and Figure 6 As shown, the extrusion mechanism includes a trapezoidal groove assembly, a pulley assembly and an extrusion assembly. The trapezoidal groove assembly includes a barrel cover 13 fixedly connected to the front side of the driving housing 1, a trapezoidal groove 14 is provided on the outer wall of the granulating barrel 8, a trapezoidal slider 15 is fixedly connected to the bottom surface of the barrel cover 13, and the inner wall of the trapezoidal groove 14 is slidably connected to the trapezoidal slider 15. The pulley assembly includes a first pulley 16 fixedly connected to the top output end of the dual-axis motor 11, a first rotating shaft 19 is rotatably connected to the top surface of the barrel cover 13, the bottom end of the first rotating shaft 19 extends to the inside of the barrel cover 13, a second pulley 17 is fixedly connected to the top of the first rotating shaft 19, and a belt 18 is sleeved between the first pulley 16 and the second pulley 17. The extrusion assembly includes a connecting rod 20 fixedly connected to the bottom end of the gear 12, a scraper 21 is fixedly connected to the bottom surface of the connecting rod 20, an extrusion block 22 is fixedly connected to the front and rear ends of the connecting rod 20, and the bottom surface of the extrusion block 22 is slidably connected to the inner bottom wall of the granulating barrel 8.

[0034] By setting up the extrusion mechanism, it is possible to utilize the two extrusion blocks 22 to slide around the first rotating shaft 19 in the granulation barrel 8, and continuously squeeze the material into the granulation hole 9 to form a long strip, thereby achieving the granulation extrusion process. Afterwards, the scraper 21 scrapes the long strip material into particles, and the granular material is burned more efficiently and thoroughly.

[0035] Among them Figure 1 , Figure 2 and Figure 4As shown, the reflux mechanism includes a filter assembly, an auger assembly and a reflux assembly. The filter assembly includes a second motor 23 fixedly connected to the right side of the fixed column 3. The left and right sides of the slide 2 are rotatably connected with second rotating shafts 24. The rear end of the right second rotating shaft 24 extends to the back of the slide 2. The rear end of the second rotating shaft 24 is fixedly connected to the output end of the second motor 23. A conveyor belt 25 is sleeved between the two second rotating shafts 24. A plurality of filter holes 26 are opened on the conveyor belt 25. A baffle 27 is provided on the slide 2. The outer wall of the slide 2 is fixedly connected to a plurality of support columns 28. The auger assembly includes a feeder fixedly connected to the outer wall of the barrel cover 13. The top surface of the feed box 29 (feed box 29) is fixedly connected to the third motor 30, the bottom surface of the feed box 29 is fixedly connected to the auger pipe 31, the inner wall of the feed box 29 is rotatably connected to the auger rod 32, the outer wall of the auger rod 32 is fixedly connected to the spiral blade 33, the top of the auger rod 32 extends to the top surface of the feed box 29 and is fixedly connected to the output end of the third motor 30, the reflux assembly includes a lower bin 34 fixedly connected to the right side of the slideway 2, the inner bottom wall of the lower bin 34 is rotatably connected to the bottom end of the auger rod 32, the bottom end of the auger pipe 31 is fixedly connected to the inner bottom wall of the lower bin 34, and a feed port 35 is provided at the bottom end of the auger pipe 31.

[0036] By setting up the reflux mechanism, the feed amount of materials can be controlled by auger transportation, so that the granulation process can proceed smoothly, the service life of the device can be extended, and the unextruded or scattered materials can be screened out from the finished products and refluxed into the device for secondary recycling and processing, which reduces costs and improves the utilization rate of materials.

[0037] A specific application of this embodiment is: by setting a reverse mechanism, in which the speeds of the two output ends of the double-axis motor 11 are controllable, the double-axis motor 11 is fixed on the driving shell 1, and the double-axis motor 11 drives the gear 12 to rotate. Since the gear 12 is meshed with the gear groove 10 on the granulating cylinder 8, the gear 12 drives the granulating cylinder 8 to rotate on the discharge cylinder 5, and the slider 7 on the granulating cylinder 8 slides along the slide groove 6 on the discharge cylinder 5. The discharge cylinder 5 is fixed to the fixed column 3 by the fixed block 4. A plurality of granulating holes 9 are provided on the granulating cylinder 8 for shaping the material, thereby realizing the reverse rotation of the granulating cylinder and the extrusion mechanism, driving the material to slide between the granulating hole and the extrusion block, so that the material is subjected to the interaction force between the extrusion block and the granulating cylinder, so that the extrusion force of the granulation is strengthened, and more materials can be quickly squeezed into granules, thereby reducing the granulation time and improving the granulation efficiency of the device.

[0038] By setting an extrusion mechanism, the double-axis motor 11 drives the first pulley 16 to rotate. Under the cooperation of the first pulley 16, the second pulley 17 and the belt 18, the first pulley 16 drives the second pulley 17 to rotate, and the second pulley 17 drives the first rotating shaft 19 to rotate. The rotation of the first rotating shaft 19 drives the connecting rod 20 to rotate. Since two extrusion blocks 22 are fixedly connected to both ends of the connecting rod 20, the rotation of the connecting rod 20 drives the two extrusion blocks 22 to rotate around the first rotating shaft 19 to squeeze the material into the granulation hole 9. The bottom surface of the connecting rod 20 is provided with a scraper 21 for scraping the material formed into small long strips after extrusion to form granules. The two extrusion blocks 22 are used to slide around the first rotating shaft 19 in the granulation barrel 8 to continuously squeeze the material into the granulation hole 9 to form long strips, thereby achieving the granulation extrusion process. After that, the scraper 21 scrapes the long strips of material to form particles, and the granular material has higher and more thorough combustion efficiency.

[0039] By setting a reflux mechanism, the material is accumulated in the lower bin 34, and the third motor 30 drives the auger rod 32 to rotate, and the material is rolled into the auger tube 31 from the feed port 35 and spirally ascends through the spiral blade 33 into the feed box 29. The material slides into the granulation cylinder 8 in the feed box 29. Under the action of the reversing mechanism and the extrusion mechanism, the material forms a granular biomass fuel and falls from the discharge cylinder 5 to the conveyor belt 25. Driven by the second motor 23, the two second rotating shafts 24 and the conveyor belt 25 cooperate with each other, and the second motor 23 drives the right second rotating shaft 24 to rotate, and the right second rotating shaft 24 drives the left second rotating shaft 24 to rotate. The conveyor belt 25 is driven between the two second rotating shafts 24 to transport the granular material to the left. During the transportation process, some materials that have not formed into particles or some materials that have formed into particles but scattered will come down with the finished product. These defective materials will enter the slideway 2 under the filtration of several filter holes 26 on the conveyor belt 25 and slide into the lower hopper 33 for accumulation, realizing the use of auger transportation to control the feed amount of materials, so that the granulation process can proceed smoothly, the service life of the device can be extended, and the unextruded or scattered materials can be screened out from the finished product and returned into the device for secondary recovery and processing, thereby reducing costs and improving the utilization rate of materials.

[0040] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0041] The preferred embodiments of the utility model disclosed above are only used to help explain the utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the utility model to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the utility model, so that technicians in the relevant technical field can well understand and use the utility model. The utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A biomass fuel pelletizing device, comprising a drive housing (1) and a slideway (2), characterized in that: The driving housing (1) and the slideway (2) are provided with a reversing mechanism, a squeezing mechanism and a reflux mechanism; The reverse mechanism comprises a discharging component and a driving component, wherein the discharging component comprises a fixed column (3) fixedly connected to the bottom surface of the driving housing (1), the front surface of the fixed column (3) is fixedly connected to a fixed block (4), the front surface of the fixed block (4) is fixedly connected to a discharging barrel (5), the inner wall of the discharging barrel (5) is provided with a slide groove (6), the inner wall of the slide groove (6) is slidably connected to a slider (7), the top surface of the discharging barrel (5) is slidably connected to a granulating barrel (8), the bottom surface of the granulating barrel (8) is fixedly connected to the top surface of the slider (7), the inner wall of the granulating barrel (8) is provided with a plurality of granulating holes (9), and the outer wall of the granulating barrel (8) is provided with a plurality of gear grooves (10).

2. A biomass fuel granulation device according to claim 1, characterized in that: The drive assembly comprises a dual-axis motor (11) fixedly connected to the inner wall of the drive housing (1); a gear (12) is fixedly connected to the bottom output end of the dual-axis motor (11); the bottom surface of the gear (12) is rotatably connected to the top surface of the fixed column (3); and the gear (12) is meshed with the gear groove (10).

3. A biomass fuel granulation device according to claim 2, characterized in that: The extrusion mechanism comprises a trapezoidal groove assembly, a pulley assembly and an extrusion assembly, the trapezoidal groove assembly comprises a barrel cover (13) fixedly connected to the front of a driving housing (1), a trapezoidal groove (14) is provided on the outer wall of the granulating barrel (8), a trapezoidal slider (15) is fixedly connected to the bottom surface of the barrel cover (13), and the inner wall of the trapezoidal groove (14) is slidably connected to the trapezoidal slider (15).

4. A biomass fuel granulation device according to claim 3, characterized in that: The pulley assembly comprises a first pulley (16) fixedly connected to the top output end of the dual-axis motor (11); the top surface of the barrel cover (13) is rotatably connected to a first rotating shaft (19); the bottom end of the first rotating shaft (19) extends to the interior of the barrel cover (13); the top end of the first rotating shaft (19) is fixedly connected to a second pulley (17); a belt (18) is sleeved between the first pulley (16) and the second pulley (17).

5. A biomass fuel granulation device according to claim 4, characterized in that: The extrusion assembly comprises a connecting rod (20) fixedly connected to the bottom end of the first rotating shaft (19), a scraper (21) fixedly connected to the bottom surface of the connecting rod (20), an extrusion block (22) fixedly connected to the front and rear ends of the connecting rod (20), and a bottom surface of the extrusion block (22) slidably connected to the inner bottom wall of the granulation cylinder (8).

6. A biomass fuel granulation device according to claim 5, characterized in that: The reflux mechanism comprises a filter assembly, an auger assembly and a reflux assembly, wherein the filter assembly comprises a second motor (23) fixedly connected to the right side of a fixed column (3), the left and right sides of the slideway (2) are both rotatably connected with a second rotating shaft (24), the rear end of the second rotating shaft (24) extends to the back side of the slideway (2), the rear end of the second rotating shaft (24) is fixedly connected to the output end of the second motor (23), a conveyor belt (25) is sleeved between the two second rotating shafts (24), a plurality of filter holes (26) are provided on the conveyor belt (25), a baffle (27) is provided on the slideway (2), and a plurality of support columns (28) are fixedly connected to the outer wall of the slideway (2).

7. A biomass fuel granulation device according to claim 6, characterized in that: The auger assembly comprises a feed box (29) fixedly connected to the outer wall of the barrel cover (13); the top surface of the feed box (29) is fixedly connected to a third motor (30); the bottom surface of the feed box (29) is fixedly connected to an auger tube (31); the inner wall of the feed box (29) is rotatably connected to an auger rod (32); the outer wall of the auger rod (32) is fixedly connected to a spiral blade (33); the top end of the auger rod (32) extends to the top surface of the feed box (29) and is fixedly connected to the output end of the third motor (30).

8. A biomass fuel granulation device according to claim 7, characterized in that: The reflux assembly comprises a lower silo (34) fixedly connected to the right side of the slideway (2); the inner bottom wall of the lower silo (34) is rotatably connected to the bottom end of the auger rod (32); the bottom end of the auger tube (31) is fixedly connected to the inner bottom wall of the lower silo (34); and a feed port (35) is provided at the bottom end of the auger tube (31).

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