Biomass particle crushed material filtering device

Abstract

The utility model belongs to the technical field of biomass particle production, and particularly relates to a crushed biomass particle filtering device which comprises a feeding pipe, a feeding hopper connected to the top side of the feeding pipe, guide plates installed on the inner walls of the two sides of the feeding hopper, a sliding rod installed in a supporting plate in a sliding mode, a trapezoidal block connected to the top end of the sliding rod, and a limiting block connected to the bottom side of the sliding rod. Extension springs are fixedly connected between the limiting blocks and the supporting plates, and guide rods are fixedly connected to the bottom sides of the two ends of the trapezoidal blocks; during feeding, downward pressure is applied to the trapezoidal block under the gravity action of materials, so that the trapezoidal block moves downwards, the extension spring is stretched, at the moment, a feeding channel is formed between the guide plates, after feeding is finished, the materials do not apply pressure to the trapezoidal block any more, the retraction force of the extension spring pulls the trapezoidal block back to the initial position again, and the two sides of the trapezoidal block make close contact with the guide plates; and external impurities, dust and the like are effectively prevented from entering the box body through the feeding pipe, the biomass particles are prevented from being polluted, and the product quality of the biomass particles is guaranteed.

Description

Technical Field

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

[0002] Biomass pellets are formed by cold compaction of crushed biomass straw, forestry waste and other raw materials using rollers and ring dies at room temperature. During the processing of biomass pellets, crushed particles will appear and need to be filtered, so a filtering device is needed.

[0003] A Chinese patent with announcement number CN217165327U discloses a particle crushing material filtering device for biomass particle processing, including a cover plate, one side of the cover plate is fixedly connected to a vertical rod, a first umbrella frame and a second umbrella frame are fixedly sleeved on the vertical rod, four grooves are opened on the vertical rod, and a discharge pipe is provided below the second adjustment mechanism. The utility model solves the disadvantage of the existing particle crushing material filtering device for biomass particle processing that raw materials are easily accumulated when raw materials are injected. By tilting the umbrella surfaces of the first umbrella frame and the second umbrella frame to discharge materials, the raw materials and impurities are dispersed and filtered, thereby improving the filtering effect and avoiding affecting the work efficiency.

[0004] However, the above-mentioned filtering device still has some problems. In actual application, it is impossible to automatically control the switch of the feed hopper, which will cause external dust and impurities to enter the interior of the device when the device is not in use, thereby contaminating subsequent biomass particle crushing and reducing the product quality of the biomass particles. Therefore, a biomass particle crushing filtering 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 in the background art, the utility model proposes a biomass particle filter.

[0006] Described retaining mechanism outer cover is a pair of fixedly mounted on the support frame, and the supporting rim of the box is positioned at the top of the packing box, and a bottom of the packing mechanism outer cover is provided with a pair of fixedly mounted on the support frame.

[0007] Preferably, three slide grooves are equidistantly provided inside both sides of the box body, a support rod is fixed between the two sides of the slide groove, a sliding block is slidably installed on the support rod on the outer wall of the slide groove, a compression spring is fixed between the sliding block and the top side of the slide groove, and the compression spring is sleeved on the outer wall of the support rod, so that the filter box moves up and down within a certain range, which helps to make the internal distribution of biomass particle fragments inside the filter box more uniform and improve the filtering effect.

[0008] Preferably, one side of the sliding block is fixedly connected to a filter box, a feed port is provided on the top side of the filter box, the bottom end of the feed pipe is located directly above the feed port, a number of filter holes are equidistantly provided on the bottom side of the filter box, and a movable door is hinged on one side of the filter box. The feed port on the top of the filter box is aligned with the bottom end of the feed pipe to facilitate the entry of biomass particle crushed materials. At the same time, the filter holes provided on the bottom side allow the crushed materials to pass through, while qualified biomass particles are retained in the filter box.

[0009] Preferably, a driving motor is installed on one side of the box body, and a rotating shaft is installed on the output end of the driving motor. One end of the rotating shaft passes through the box body and is rotatably installed on the inner wall of one side thereof. Three cams are equidistantly installed on the outer wall of the rotating shaft. When the cams are in operation, they contact the filter box and can further push the filter box to move on the chute, thereby increasing the disturbance of the biomass particle fragments during the filtration process, which helps to improve the filtration effect and efficiency.

[0010] Preferably, guide plates are symmetrically installed on the bottom side of the box body, and a discharge port is opened at the middle end of the bottom side of the box body to guide the filtered crushed materials into the discharge port to ensure smooth discharge.

[0011] Preferably, a protective door is installed on one side of the box body through a hinge, and a handle is fixed on one side of the protective door to facilitate the removal of qualified biomass particles after filtration.

[0012] The utility model is beneficial in that:

[0013] 1. When feeding, the gravity of the material exerts downward pressure on the trapezoidal block, causing the trapezoidal block to move downward and the tension spring to be stretched. At this time, a feeding channel is formed between the guide plates. When feeding is completed, the material no longer exerts pressure on the trapezoidal block, and the retraction force of the tension spring pulls the trapezoidal block back to its initial position. Both sides are in close contact with the guide plates, effectively preventing external impurities, dust, etc. from entering the box through the feed pipe, avoiding contamination of the biomass pellets and ensuring the product quality of the biomass pellets.

[0014] 2. The drive motor of the utility model is started, driving the rotating shaft to rotate, thereby rotating the cam. When the protruding part of the cam contacts the filter box, the filter box is pushed upward, the compression spring is compressed, and the sliding block slides upward in the slide groove. When the cam leaves the filter box, the elastic force of the compression spring is released, pushing the filter box to slide downward, causing the material in the filter box to vibrate and bump, which helps to make the internal distribution of biomass particle fragments inside the filter box more uniform, thereby improving the filtering effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] 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.

[0016] Figure 1 This is a schematic diagram of the structure of the utility model from the middle axis side view;

[0017] Figure 2 Schematic diagram of the main structure of the filtering device;

[0018] Figure 3 This is a schematic diagram of the feed hopper plugging assembly structure;

[0019] Figure 4 This is a schematic diagram of the filter box motion component structure;

[0020] Figure 5 A schematic diagram of the drive component structure.

[0021] In the figure: 1. Box body; 2. Feed pipe; 3. Feed hopper; 4. Guide plate; 5. Support plate; 6. Slide rod; 7. Trapezoidal block; 8. Limit block; 9. Tension spring; 10. Guide rod; 11. Slide groove; 12. Support rod; 13. Slide block; 14. Compression spring; 15. Filter box; 16. Feed port; 17. Filter hole; 18. Movable door; 19. Drive motor; 20. Rotating shaft; 21. Cam; 22. Guide plate; 23. Discharge port; 24. Protective door; 25. Handle. DETAILED DESCRIPTION

[0022] 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.

[0023] See also Figure 1-3 The figure shows a biomass particle filtering device, comprising a box body 1, a feed pipe 2 is connected to the top side of the box body 1, and a feed hopper 3 is connected to the top side of the feed pipe 2. Guide plates 4 are symmetrically installed on the inner walls of both sides of the feed hopper 3, and a support plate 5 is fixed between the two sides of the feed pipe 2. A slide bar 6 is slidably installed inside the support plate 5, and the top of the slide bar 6 is connected to a trapezoidal block 7. In the initial state, both sides of the trapezoidal block 7 are respectively in contact with the guide plate 4, and the bottom side of the slide bar 6 is connected to a limiting block 8. A tension spring 9 is fixed between the limiting block 8 and the support plate 5, and the tension spring 9 is sleeved on the outer wall of the slide bar 6. The bottom sides of both ends of the trapezoidal block 7 are fixed with guide rods 10; when working, in actual application, it is not possible to automatically control the switch of the feed hopper 3, which will lead to When the device is not in use, external dust and impurities will enter the interior of the device, thereby contaminating subsequent biomass particle fragments and reducing the product quality of the biomass particles. During feeding, the biomass particle fragments are poured into the feed hopper 3. The gravity of the material gives downward pressure to the trapezoidal block 7, causing the trapezoidal block 7 to move downward, and the tension spring 9 is stretched. At this time, a channel is formed between the guide plates 4, and the material can smoothly pass through the feed pipe 2 into the interior of the box body 1. When the feeding is completed, the material no longer exerts pressure on the trapezoidal block 7, and the retraction force of the tension spring 9 pulls the trapezoidal block 7 back to its initial position, and the two sides are in close contact with the guide plates 4, thereby blocking the feeding gap between the guide plates 4 inside the feed hopper 3, effectively preventing external impurities, dust, etc. from entering the box body 1 through the feed pipe 2, avoiding contamination of the biomass particles and ensuring the product quality of the biomass particles.

[0024] See also Figure 1-5As shown, three chutes 11 are evenly spaced inside the two sides of the box body 1, and a support rod 12 is fixed between the two sides of the chute 11. The support rod 12 is located on the outer wall of the chute 11 and a sliding block 13 is slidably installed. A compression spring 14 is fixed between the sliding block 13 and the top side of the chute 11. A filter box 15 is fixed to one side of the sliding block 13. A feed port 16 is opened on the top side of the filter box 15, and a plurality of filter holes 17 are evenly spaced on the bottom side of the filter box 15. A movable door 18 is hinged on one side of the filter box 15. A driving motor 19 is installed on one side, and a rotating shaft 20 is installed on the output end of the driving motor 19. One end of the rotating shaft 20 passes through the box body 1 and is rotatably installed on the inner wall of one side thereof. Three cams 21 are equidistantly installed on the outer wall of the rotating shaft 20. The cams 21 contact the filter box 15 when working. A guide plate 22 is symmetrically installed on the bottom side of the box body 1. A discharge port 23 is opened at the middle end of the bottom side of the box body 1. A protective door 24 is installed on one side of the box body 1 through a hinge. A handle 25 is fixed to one side of the protective door 24. When working, During the particle processing process, particles in the form of crushed materials will appear, and they need to be filtered. Therefore, a filtering device is required. When the biomass particle crushes in the feed pipe 2 fall into the feed port 16 of the filter box 15, the materials enter the interior of the filter box 15, and the drive motor 19 is started, driving the rotating shaft 20 to rotate, thereby rotating the cam 21. When the protruding part of the cam 21 contacts the filter box 15, the filter box 15 is pushed to move upward, the compression spring 14 is compressed, and the sliding block 13 slides upward in the chute 11. When the protruding part leaves the contact with the filter box 15, the filter box 15 is pushed upward. When in contact, the elastic force of the compression spring 14 is released, pushing the sliding block 13 to slide downward, and the filter box 15 drops accordingly, causing the material in the filter box 15 to vibrate and bump, which helps to distribute the biomass particle fragments more evenly in the filter box 15, improve the filtering effect, and smaller particles and impurities fall through the filter holes 17, while qualified particles remain in the filter box 15. The fallen fine particles and impurities gather along the guide plate 22 to the discharge port 23, and are finally discharged from the discharge port 23. The protective door 24 can be opened by the handle 25, and then the movable door 18 is opened to take out the qualified particles.

[0025] Working principle: When feeding, the biomass pellets are poured into the feed hopper 3. The gravity of the material exerts downward pressure on the trapezoidal block 7, causing the trapezoidal block 7 to move downward. The tension spring 9 is stretched. At this time, a channel is formed between the guide plates 4, and the material can smoothly pass through the feed pipe 2 into the interior of the box 1. When the feeding is completed, the material no longer exerts pressure on the trapezoidal block 7. The retraction force of the tension spring 9 pulls the trapezoidal block 7 back to its initial position, and both sides are in close contact with the guide plates 4, thereby blocking the feeding gap between the guide plates 4 inside the feed hopper 3, effectively preventing external impurities, dust, etc. from entering the box 1 through the feed pipe 2, avoiding contamination of the biomass pellets and ensuring the product quality of the biomass pellets.

[0026] When the biomass particle fragments in the feed pipe 2 fall into the feed port 16 of the filter box 15, the material enters the filter box 15, the drive motor 19 is started, driving the rotating shaft 20 to rotate, thereby causing the cam 21 to rotate accordingly. When the protruding part of the cam 21 contacts the filter box 15, the filter box 15 is pushed to move upward, the compression spring 14 is compressed, and the sliding block 13 slides upward in the slide groove 11. When the protruding part leaves the contact with the filter box 15, the elastic force of the compression spring 14 is released, pushing the sliding block 13 to slide downward, and the filter box 15 is lowered accordingly, causing the material to vibrate and bump in the filter box 15, which helps to make the biomass particle fragments more evenly distributed in the filter box 15 and improve the filtering effect. Smaller particles and impurities fall through the filter holes 17, and qualified particles remain in the filter box 15. The fallen fine particles and impurities gather along the guide plate 22 to the discharge port 23 and are finally discharged from the discharge port 23. The protective door 24 can be opened by the handle 25, and then the movable door 18 is opened to take out the qualified particles.

[0027] 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.

[0028] 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 filter device, characterized by: The invention comprises a box body (1), wherein a feed pipe (2) is connected to the top side of the box body (1), a feed hopper (3) is connected to the top side of the feed pipe (2), guide plates (4) are symmetrically installed on the inner walls of both sides of the feed hopper (3), a support plate (5) is fixed between the two sides of the feed pipe (2), a slide rod (6) is slidably installed inside the support plate (5), a trapezoidal block (7) is connected to the top of the slide rod (6), and the two sides of the trapezoidal block (7) are respectively in an initial state. The slide bar (6) is in contact with the guide plate (4), and the bottom side of the slide bar (6) is connected to a limit block (8). A tension spring (9) is fixed between the limit block (8) and the support plate (5). The tension spring (9) is sleeved on the outer wall of the slide bar (6). The bottom sides of both ends of the trapezoidal block (7) are fixed with a guide rod (10). One end of the guide rod (10) slides through and extends to the bottom of the support plate (5). The width of the support plate (5) is much smaller than the internal width of the feed pipe (2).

2. The biomass particle filtering device according to claim 1, characterized in that: Three slide grooves (11) are evenly spaced inside both sides of the box body (1), a support rod (12) is fixed between the two sides of the slide groove (11), a sliding block (13) is slidably installed on the support rod (12) on the outer wall of the slide groove (11), a compression spring (14) is fixed between the sliding block (13) and the top side of the slide groove (11), and the compression spring (14) is sleeved on the outer wall of the support rod (12).

3. The biomass particle filtering device according to claim 2, characterized in that: A filter box (15) is fixedly connected to one side of the sliding block (13), a feed port (16) is provided on the top side of the filter box (15), the bottom end of the feed pipe (2) is located directly above the feed port (16), a plurality of filter holes (17) are equidistantly provided on the bottom side of the filter box (15), and a movable door (18) is hinged on one side of the filter box (15).

4. The biomass particle filtering device according to claim 3, characterized in that: A driving motor (19) is installed on one side of the housing (1), and a rotating shaft (20) is installed on the output end of the driving motor (19). One end of the rotating shaft (20) passes through the housing (1) and is rotatably installed on one inner wall of the housing. Three cams (21) are equidistantly installed on the outer wall of the rotating shaft (20). The cams (21) are in contact with the filter box (15) during operation.

5. The biomass particle filtering device according to claim 4, characterized in that: A guide plate (22) is symmetrically mounted on the bottom side of the box body (1), and a discharge port (23) is provided at the middle end of the bottom side of the box body (1).

6. The biomass particle filtering device according to claim 5, characterized in that: A protective door (24) is mounted on one side of the box body (1) via a hinge, and a handle (25) is fixed to one side of the protective door (24).

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