Crushing and screening device for biofuel production

Abstract

The utility model relates to the technical field of biomass fuel production, and discloses a crushing and screening device for biofuel production, which comprises a crushing device, a screening device, a dust removal device, a crushing device upper cover and a feed opening cover plate, the crushing device can quickly and effectively crush biomass raw materials into particles suitable for follow-up treatment, the screening device can accurately separate the crushed materials according to the particles, the product quality is improved, the device is easy and convenient to operate, the processes of crushing, screening, dust removal and the like are automatically carried out through an automatic control system, and the production efficiency is improved. The labor intensity of operators is reduced, and the working efficiency is improved; the dust removal device effectively removes dust and particles generated in the biomass fuel production process in an air inducing and dust collecting mode, the cleanness of the working environment and the air quality are guaranteed, the environment protection requirement is met, and the influence on the health of operators is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of biomass fuel production, in particular to a crushing and screening device for biofuel production. Background Technique

[0002] As a representative of renewable energy, biofuel uses agricultural and forestry waste as raw materials and is processed through a series of processes to produce clean fuel that can be directly burned. In the production process of biofuel, crushing and screening are two key steps, which directly affect the subsequent combustion efficiency and quality of the fuel. In the existing biofuel processing process, the problem of dust and particulate matter emissions is relatively prominent, which not only affects the working environment but also may pollute the surrounding environment. The existing dust removal devices often cannot completely remove the dust and particulate matter generated during the production process, resulting in a decline in air quality and affecting the health and production safety of operators. For this reason, we propose a crushing and screening device for biofuel production. Content of the Utility Model

[0003] (1) Technical Problems to be Solved

[0004] In view of the deficiencies of the prior art, the utility model provides a crushing and screening device for biofuel production, which solves the above problems.

[0005] (2) Technical Solutions

[0006] To achieve the above object, the utility model provides the following technical solution: A crushing and screening device for biofuel production, including a crushing device, a screening device, a dust removal device, an upper cover of the crushing device, and a blanking port cover plate. The upper end of the crushing device is fixedly installed with an upper cover of the crushing device. One end of the upper cover of the crushing device is provided with a dust removal device. The lower end of the crushing device is provided with a screening device. Both sides of the upper cover of the crushing device are provided with openings, and blanking port cover plates are fixedly installed at the openings.

[0007] Preferably, the screening device includes a vibrating screen, a small-hole screen mesh, a large-hole screen mesh, a vibration motor, a vibrating screen support, and a spring. One side inside the vibrating screen is fixedly installed with a small-hole screen mesh, and the other side is fixedly installed with a large-hole screen mesh. The small-hole screen mesh and the large-hole screen mesh are horizontally fixedly installed together. Both sides in the middle section on the outside of the vibrating screen are fixedly installed with vibration motors. The lower end of the vibrating screen is provided with a vibrating screen support. Springs are fixedly connected to the four circumferences at the lower end of the vibrating screen, and the other ends of multiple groups of springs are fixedly connected to the vibrating screen support together.

[0008] Preferably, the screening device further comprises a storage bin, a partition baffle, a fine material collection tank, a coarse material collection tank, a fine material discharge port and a coarse material discharge port. The vibrating screen is fixedly installed at the top of the storage bin through a vibrating screen support. A partition baffle is fixedly installed in the middle section inside the storage bin. The partition baffle divides the storage bin into two parts, namely a fine material collection tank and a coarse material collection tank. The fine material collection tank corresponds to the lower part of the small-hole screen mesh in the vibrating screen, and the coarse material collection tank corresponds to the lower part of the large-hole screen mesh in the vibrating screen. A coarse material discharge port is arranged on one side of the storage bin corresponding to the coarse material collection tank, and a fine material discharge port is arranged on one side of the storage bin corresponding to the fine material collection tank.

[0009] Preferably, the crushing device comprises a crushing roller, a crusher housing, a gear and a crushing motor. A crushing device upper cover is fixedly installed at the top of the crusher housing. Two groups of crushing rollers are fixedly installed inside the crusher housing. The rotating shafts of the two groups of crushing rollers extend through one side of the crusher housing and are all connected to the gear together. A crushing motor is arranged on one side of the crusher housing close to the gear. The output shaft of the crushing motor is fixedly connected to one group of gears.

[0010] Preferably, the crushing device further comprises a discharge port and a crushing device support. The discharge port is fixedly installed at the bottom end of the crusher housing. A crushing device support is fixedly installed in the middle section of the discharge port. The outlet of the discharge port is directly opposite to the fine material collection tank in the vibrating screen.

[0011] Preferably, the dust removal device comprises a blower turbine fan, a blower motor, an air suction port, an air outlet, a spiral housing and a spiral funnel. The blower turbine fan is fixedly installed at the top of the dust removal device. The blower motor is fixedly installed at the top of the blower turbine fan. An air outlet is arranged on one side of the blower turbine fan. The spiral housing is fixedly installed at the bottom end of the blower turbine fan. The spiral funnel is fixedly installed at the bottom end of the spiral housing. An air suction port is arranged on one side of the spiral housing close to the crushing device upper cover. The air suction port penetrates and extends into the inside of the crushing device upper cover.

[0012] Preferably, the dust removal device further comprises an exhaust duct, a dust collection device, a support and a dust removal device support. The exhaust duct is fixedly installed at the bottom end of the blower turbine fan. The blower turbine fan is communicated with the inside of the spiral housing and the spiral funnel through the exhaust duct. The dust collection device is fixedly installed at the bottom end of the spiral funnel. The inside of the spiral funnel and the dust collection device is communicated. A support is fixedly installed in the middle section of the spiral housing and the spiral funnel. The spiral housing and the spiral funnel are fixedly installed at the top of the dust collection device through the support. The dust removal device support is fixedly installed at the bottom end of the dust collection device. The dust removal device is fixed through the dust removal device support.

[0013] (III) Beneficial effects

[0014] Compared with the prior art, the utility model provides a crushing and screening device for biofuel production, which has the following beneficial effects:

[0015] 1. The crushing and screening device for biofuel production includes a crushing device that can quickly and effectively crush biomass raw materials into suitable particle sizes for subsequent processing, and a screening device that can accurately separate the crushed materials according to particle size, improving product quality. The operation of the device is simple, and the processes of crushing, screening, and dust removal are automatically carried out through an automated control system, reducing the labor intensity of operators and improving work efficiency.

[0016] 2. The crushing and screening device for biofuel production includes a dust removal device that effectively removes dust and particulate matter generated during the production of biofuels through the method of induced air dust collection, ensuring a clean working environment and air quality, meeting environmental protection requirements, and reducing the health impact on operators. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is the front view three-dimensional structure schematic diagram of the utility model;

[0018] Figure 2 is the exploded structure schematic diagram of the screening device of the utility model;

[0019] Figure 3 is the structure schematic diagram of the crushing device of the utility model;

[0020] Figure 4 is the exploded structure schematic diagram of the crushing device of the utility model;

[0021] Figure 5 is the exploded structure schematic diagram of the dust removal device of the utility model.

[0022] In the figure: 1. Crushing device; 2. Screening device; 3. Dust removal device; 4. Upper cover of the crushing device; 5. Vibration sieve; 6. Small-hole sieve mesh; 7. Large-hole sieve mesh; 8. Vibration motor; 9. Vibration sieve support; 10. Spring; 11. Storage bin body; 12. Partition baffle; 13. Fine material collection tank; 14. Coarse material collection tank; 15. Fine material discharge port; 16. Coarse material discharge port; 17. Crushing roller; 18. Crusher housing; 19. Gear; 20. Crushing motor; 21. Feeding port cover plate; 22. Discharge port; 23. Crushing device support; 24. Blower turbine fan; 25. Blower motor; 26. Suction port; 27. Air outlet; 28. Spiral housing; 29. Spiral funnel; 30. Exhaust duct; 31. Dust collection device; 32. Support; 33. Dust removal device support. DETAILED DESCRIPTION OF THE INVENTION

[0023] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0024] Please refer to Figures 1-5 , a crushing and screening device for biofuel production, including a crushing device 1, a screening device 2, a dust removal device 3, a crushing device upper cover 4, and a blanking port cover plate 21. The top end of the crushing device 1 is fixedly installed with the crushing device upper cover 4. One end of the crushing device upper cover 4 is provided with the dust removal device 3. The bottom end of the crushing device 1 is provided with the screening device 2. The two sides of the crushing device upper cover 4 are provided with openings, and blanking port cover plates 21 are fixedly installed at the openings.

[0025] Furthermore, the screening device 2 includes a vibrating screen 5, a small-hole screen 6, a large-hole screen 7, a vibration motor 8, a vibrating screen support 9, and a spring 10. One side inside the vibrating screen 5 is fixedly installed with the small-hole screen 6, and the other side is fixedly installed with the large-hole screen 7. The small-hole screen 6 and the large-hole screen 7 are horizontally fixedly installed together. Both sides in the middle section of the outside of the vibrating screen 5 are fixedly installed with the vibration motor 8. The bottom end of the vibrating screen 5 is provided with the vibrating screen support 9. The four sides of the bottom end of the vibrating screen 5 are fixedly connected with springs 10, and the other ends of multiple groups of springs 10 are fixedly connected with the vibrating screen support 9 together.

[0026] Furthermore, the screening device 2 further includes a storage bin 11, a partition baffle 12, a fine material collection tank 13, a coarse material collection tank 14, a fine material discharge port 15, and a coarse material discharge port 16. The vibrating screen 5 is fixedly installed at the top end of the storage bin 11 through the vibrating screen support 9. A partition baffle 12 is fixedly installed in the middle section inside the storage bin 11. The partition baffle 12 divides the storage bin 11 into two parts, namely a fine material collection tank 13 and a coarse material collection tank 14. The fine material collection tank 13 corresponds to the lower part of the small-hole screen 6 in the vibrating screen 5, and the coarse material collection tank 14 corresponds to the lower part of the large-hole screen 7 in the vibrating screen 5. A coarse material discharge port 16 is opened on one side of the storage bin 11 corresponding to the coarse material collection tank 14, and a fine material discharge port 15 is opened on one side of the storage bin 11 corresponding to the fine material collection tank 13.

[0027] Further, the crushing device 1 includes a crushing roller 17, a crusher housing 18, a gear 19, and a crushing motor 20. A crushing device upper cover 4 is fixedly installed at the top of the crusher housing 18. Two groups of crushing rollers 17 are fixedly installed inside the crusher housing 18. The rotating shafts of the two groups of crushing rollers 17 extend through one side of the crusher housing 18 and are connected to the gear 19. A crushing motor 20 is arranged on one side of the crusher housing 18 close to the gear 19, and the output shaft of the crushing motor 20 is fixedly connected to a group of gears 19.

[0028] Further, the crushing device 1 further includes a discharge port 22 and a crushing device support 23. The discharge port 22 is fixedly installed at the bottom end of the crusher housing 18. The middle section of the discharge port 22 is fixedly installed with a crushing device support 23. The outlet of the discharge port 22 is directly opposite to the fine material collection tank 13 in the vibrating screen 5.

[0029] Further, the dust removal device 3 includes a blower turbine fan 24, a blower motor 25, an air suction port 26, an air outlet 27, a spiral housing 28, and a spiral funnel 29. The blower turbine fan 24 is fixedly installed at the top of the dust removal device 3. The blower motor 25 is fixedly installed at the top of the blower turbine fan 24. An air outlet 27 is arranged on one side of the blower turbine fan 24. The spiral housing 28 is fixedly installed at the bottom end of the blower turbine fan 24. The spiral funnel 29 is fixedly installed at the bottom end of the spiral housing 28. An air suction port 26 is opened on one side of the spiral housing 28 close to the crushing device upper cover 4, and the air suction port 26 extends through and into the interior of the crushing device upper cover 4.

[0030] Further, the dust removal device 3 further includes an exhaust duct 30, a dust collection device 31, a support 32, and a dust removal device support 33. The exhaust duct 30 is fixedly installed at the bottom end of the blower turbine fan 24. The blower turbine fan 24 is communicated with the interiors of the spiral housing 28 and the spiral funnel 29 through the exhaust duct 30. The dust collection device 31 is fixedly installed at the bottom end of the spiral funnel 29. The interiors of the spiral funnel 29 and the dust collection device 31 are communicated. The support 32 is fixedly installed in the middle section of the spiral housing 28 and the spiral funnel 29. The spiral housing 28 and the spiral funnel 29 are fixedly installed at the top of the dust collection device 31 through the support 32. The dust removal device support 33 is fixedly installed at the bottom end of the dust collection device 31. The dust removal device 3 is fixed through the dust removal device support 33. The dust removal device 3 effectively removes the dust and particulate matter generated during the production process of biomass fuel by means of induced air dust collection, ensuring the cleanliness of the working environment and the air quality.

[0031] Working principle: Open the upper cover 4 of the crushing device, and feed the biomass raw materials into the crusher housing 18 through the feed inlet of the crushing device 1. Start the crushing motor 20, which drives the connected gear 19 to rotate, and then makes the two groups of crushing rollers 17 rotate relatively. The rotating crushing rollers 17 exert crushing effects such as extrusion and shearing on the biomass raw materials, crushing them into smaller particles. The crushed materials are discharged through the discharge port 22 at the bottom end of the crusher housing 18 and enter the screening device 2; the crushed materials fall onto the vibrating screen 5. At this time, start the vibration motor 8, which drives the vibrating screen 5 to vibrate. The materials are under the action of the vibration force on the vibrating screen 5 and are also under the screening action of the small-hole screen 6 and the large-hole screen 7. The materials with smaller particle sizes pass through the small-hole screen 6 and enter the fine material collection tank 13, while the materials with larger particle sizes pass through the large-hole screen 7 and enter the coarse material collection tank 14. The fine material collection tank 13 and the coarse material collection tank 14 respectively correspond to different discharge ports, facilitating subsequent classification treatment and utilization; during the crushing process, due to the crushing and vibration of the materials, a certain amount of dust will be generated. When the crushing device 1 is working, the generated dust and particulate matter will be sucked in through the suction port 26 by the suction force generated by the blower turbine fan 24. The blower motor 25 drives the blower turbine fan 24 to rotate at high speed, forming a negative pressure area, which prompts the dust and particulate matter to enter the spiral housing 28 and the spiral funnel 29. The dust and particulate matter entering the spiral housing 28 and the spiral funnel 29 gradually settle and accumulate in the dust collection device 31 under the guidance of the spiral funnel 29. The design of the spiral funnel 29 helps to effectively guide the dust and particulate matter into the dust collection device 31 to prevent their escape. The air after dust removal treatment is discharged through the air outlet 27 to ensure the air quality of the working environment; after the biomass raw materials are crushed into smaller particles by the crushing device 1, they enter the screening device 2 for screening. The screened fine materials and coarse materials respectively enter the fine material collection tank 13 and the coarse material collection tank 14, facilitating subsequent classification treatment. The dust removal device 3 works continuously throughout the process to ensure the cleanliness and hygiene of the production environment. This device realizes the efficient treatment and utilization of biomass raw materials through the organic combination of crushing, screening, and dust removal, providing strong support for the production of biofuels.

[0032] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A crushing and screening device for biofuel production, comprising a crushing device (1), a screening device (2), a dust removal device (3), a crushing device upper cover (4) and a feed opening cover plate (21), characterized in that: A crushing device upper cover (4) is fixedly mounted on the top of the crushing device (1), a dust removal device (3) is arranged at one end of the crushing device upper cover (4), a screening device (2) is arranged at the bottom end of the crushing device (1), and openings are arranged on both sides of the crushing device upper cover (4), and a feed opening cover plate (21) is fixedly mounted at each of the openings.

2. A crushing and screening device for biofuel production according to claim 1, characterized in that: The screening device (2) comprises a vibrating screen (5), a small-hole screen (6), a large-hole screen (7), a vibration motor (8), a vibrating screen bracket (9) and a spring (10); a small-hole screen (6) is fixedly mounted on one side of the vibrating screen (5), and a large-hole screen (7) is fixedly mounted on the other side; the small-hole screen (6) and the large-hole screen (7) are fixedly mounted together horizontally; vibration motors (8) are fixedly mounted on both sides of the middle section of the outer side of the vibrating screen (5); a vibrating screen bracket (9) is arranged at the bottom end of the vibrating screen (5); springs (10) are fixedly connected around the bottom end of the vibrating screen (5); and the other ends of multiple groups of the springs (10) are fixedly connected to the vibrating screen bracket (9).

3. A crushing and screening device for biofuel production according to claim 2, characterized in that: The screening device (2) further comprises a material storage box (11), a partition baffle (12), a fine material collecting trough (13), a coarse material collecting trough (14), a fine material discharge port (15) and a coarse material discharge port (16); the vibrating screen (5) is fixedly mounted on the top of the material storage box (11) via a vibrating screen bracket (9); a partition baffle (12) is fixedly mounted in the middle section of the material storage box (11); the partition baffle (12) divides the material storage box (11) into fine material and coarse material. The invention relates to a material collecting trough (13) and a coarse material collecting trough (14), wherein the fine material collecting trough (13) corresponds to the lower part of the small-pore screen (6) in the vibrating screen (5), and the coarse material collecting trough (14) corresponds to the lower part of the large-pore screen (7) in the vibrating screen (5). A coarse material discharge port (16) is provided on a side of the material storage box (11) corresponding to the coarse material collecting trough (14), and a fine material discharge port (15) is provided on a side of the material storage box (11) corresponding to the fine material collecting trough (13).

4. A crushing and screening device for biofuel production according to claim 1, characterized in that: The crushing device (1) comprises a crushing roller (17), a crusher housing (18), a gear (19) and a crushing motor (20); a crushing device upper cover (4) is fixedly mounted on the top of the crusher housing (18); two groups of crushing rollers (17) are fixedly mounted inside the crusher housing (18); the rotating shafts of the two groups of crushing rollers (17) extend through one side of the crusher housing (18) and are connected to the gear (19); a crushing motor (20) is arranged on one side of the crusher housing (18) close to the gear (19); and the output shaft of the crushing motor (20) is fixedly connected to a group of gears (19).

5. A crushing and screening device for biofuel production according to claim 4, characterized in that: The crushing device (1) further comprises a discharge port (22) and a crushing device support (23); the discharge port (22) is fixedly mounted at the bottom end of the crusher housing (18); the crushing device support (23) is fixedly mounted at the middle section of the discharge port (22); and the outlet of the discharge port (22) faces the fine material collecting trough (13) in the vibrating screen (5).

6. A crushing and screening device for biofuel production according to claim 1, characterized in that: The dust removal device (3) comprises a blast turbine fan (24), a blast motor (25), an air suction port (26), an air outlet (27), a spiral shell (28) and a spiral funnel (29); the blast turbine fan (24) is fixedly mounted on the top of the dust removal device (3); the blast motor (25) is fixedly mounted on the top of the blast turbine fan (24); an air outlet (27) is arranged on one side of the blast turbine fan (24); a spiral shell (28) is fixedly mounted on the bottom end of the blast turbine fan (24); a spiral funnel (29) is fixedly mounted on the bottom end of the spiral shell (28); a suction port (26) is provided on one side of the spiral shell (28) close to the upper cover (4) of the crushing device; the suction port (26) extends through and into the interior of the upper cover (4) of the crushing device.

7. A crushing and screening device for biofuel production according to claim 6, characterized in that: The dust removal device (3) further comprises an exhaust pipe (30), a dust collecting device (31), a bracket (32) and a dust removal device bracket (33); the exhaust pipe (30) is fixedly mounted on the bottom end of the blast turbine fan (24); the blast turbine fan (24) is connected to the interior of the spiral shell (28) and the spiral funnel (29) through the exhaust pipe (30); the dust collecting device (31) is fixedly mounted on the bottom end of the spiral funnel (29); the spiral funnel (29) and the interior of the dust collecting device (31) are connected; the bracket (32) is fixedly mounted on the middle sections of the spiral shell (28) and the spiral funnel (29); the spiral shell (28) and the spiral funnel (29) are fixedly mounted on the top end of the dust collecting device (31) through the bracket (32); the dust removal device bracket (33) is fixedly mounted on the bottom end of the dust collecting device (31); and the dust removal device (3) is fixed by the dust removal device bracket (33).

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