A biomass pellet fuel screening device

Abstract

The utility model discloses a kind of biomass granular fuel screening devices, it is related to screening device technical field, including support seat, the upper portion of support seat is slidably provided with screening frame, the upper portion of support seat is installed with servo motor, servo motor and screening frame are jointly installed connecting rod mechanism between, the inside of screening frame is slidably provided with two screening nets, screening frame and support seat are commonly provided with shaking subassembly on, shaking subassembly includes the side surface of screening frame and is slidably connected with movable rod, the bottom of movable rod is installed with extruding block, the upper portion of screening frame is installed with multiple pressure blocks, servo motor is driven screening frame reciprocating motion to carry out screening after starting, movable rod is driven to move when screening frame moves, the utility model is through setting shaking subassembly, make screening net pass through compound motion and carry out screening work, make material particle simultaneously receive horizontal thrust and vertical throwing force, accelerate small particle and pass through sieve hole, improve screening efficiency.

Description

Technical Field

[0001] This utility model relates to the field of screening device technology, and in particular to a biomass pellet fuel screening device. Background Technology

[0002] Biomass pellet fuel is a block or pellet-shaped fuel made from agricultural and forestry waste (such as straw, sawdust, rice husks, fruit shells, etc.) through processes such as crushing, mixing, extrusion, and drying. Screening devices are a key link in the production of biomass pellet fuel. They separate particles of different sizes through screens to ensure that the fuel particle size meets the requirements of combustion equipment.

[0003] Traditional devices drive materials through vertical or horizontal vibration, and the material particles are only subjected to force in one direction. Small particles are easily stuck at the edge of the screen holes, reducing the throughput. Furthermore, wet or compressed raw materials are prone to forming large lumps, which directly cover the screen holes and easily affect the screening efficiency. Therefore, a biomass pellet fuel screening device is proposed. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies, such as material particles being subjected to force in only one direction, small particles easily getting stuck at the edge of the screen holes, reducing the throughput, and wet or compressed raw materials easily forming large lumps that directly cover the screen holes, thus affecting screening efficiency. Therefore, this invention proposes a biomass pellet fuel screening device.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: A biomass pellet fuel screening device includes a support base, a screening frame slidably mounted on the upper part of the support base, a servo motor mounted on the upper part of the support base, a linkage mechanism connected to the servo motor and the screening frame, two screening screens slidably mounted on the inner side of the screening frame, and a shaking component shared by the screening frame and the support base. The shaking component includes a movable rod slidably connected to the side of the screening frame, a pressing block mounted at the bottom of the movable rod, and multiple pressure blocks mounted on the upper part of the screening frame. After the servo motor is started, it drives the screening frame to reciprocate through the linkage mechanism to perform screening. When the screening frame moves, it drives the movable rod to move. The movable rod drives the extrusion block to squeeze the pressure block, and the resulting shaking force is transmitted to the two screening screens. A feeding frame is installed on the upper part of the support base. A dispersing component is provided on the feeding frame. The dispersing component includes a first rotating rod symmetrically rotated inside the feeding frame, multiple push plates installed outside the first rotating rod, and a transmission unit provided on the feeding frame. When the output shaft of the servo motor rotates, it drives the two first rotating rods to rotate in opposite directions through the transmission unit, and drives the multiple push plates to rotate to beat and disperse the raw materials discharged from the feeding frame.

[0006] The above technical solution further includes: The screening frame has a sliding groove on its side, and two sliding blocks are slidably arranged inside the sliding groove. The sliding blocks are fixedly connected to the screening screen, and the end of the sliding block away from the screening screen is fixedly connected to the movable rod. The movable rod drives the screening screen to move along the sliding groove through the sliding blocks.

[0007] The pressure block is positioned above the movement trajectory of the extrusion block, and the size of the opening formed by two adjacent pressure blocks is adapted to the size of the extrusion block. The movable rod causes the extrusion block to extrude the pressure block.

[0008] A support plate is installed on the side of the support base, and a telescopic rod is installed at the bottom of the support plate. The end of the telescopic rod away from the support plate is fixedly connected to the movable rod.

[0009] The transmission unit includes a first rotating rod near the servo motor and a first transmission belt that is sleeved together with the output shaft of the servo motor. A second rotating rod is symmetrically rotatably connected to the side of the feeding frame. A second transmission belt is sleeved together with the second rotating rod. When the first rotating rod rotates, it drives the second rotating rod to rotate through the second transmission belt.

[0010] The transmission unit also includes a gear mounted on the outside of the second rotating rod, with two adjacent gears meshing with each other. When the second rotating rod rotates, it drives the other side of the second rotating rod to rotate in the opposite direction through the adjacent gear.

[0011] The size of the sliding groove opening is adapted to the size of the two sliding blocks, and the cross-sections of the sliding blocks and the screening screen are both convex.

[0012] This utility model has the following beneficial effects: 1. In this utility model, by setting a shaking component, the screening screen performs screening work through compound motion, so that the material particles are simultaneously subjected to horizontal pushing force and vertical throwing force, which accelerates the passage of small particles through the screen holes and improves screening efficiency. 2. In this utility model, by setting a dispersing component to disperse damp or compressed raw materials, large pieces of material are prevented from clogging the screen holes, and the particle size distribution of the dispersed raw materials is more uniform, which facilitates the screening process. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall side structure of a biomass pellet fuel screening device proposed in this utility model; Figure 2 This is a schematic diagram of the overall bottom view structure of this utility model; Figure 3 for Figure 1 Enlarged schematic diagram of the structure at point A in the middle; Figure 4 for Figure 1Enlarged schematic diagram of the structure at point B; Figure 5 for Figure 2 Enlarged schematic diagram of the structure at point C.

[0014] In the diagram: 1. Support base; 2. Screening frame; 3. Servo motor; 4. Linkage mechanism; 5. Sliding groove; 6. Sliding block; 7. Screening mesh; 8. Movable rod; 9. Telescopic rod; 10. Extrusion block; 11. Pressure block; 12. Support plate; 13. First transmission belt; 14. Feeding frame; 15. First rotating rod; 16. Second rotating rod; 17. Second transmission belt; 18. Gear; 19. Push plate. Detailed Implementation

[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0016] Example 1

[0017] like Figure 1 - Figure 5 As shown, the present invention proposes a biomass pellet fuel screening device, including a support base 1, a screening frame 2 slidably mounted on the upper part of the support base 1, a servo motor 3 mounted on the upper part of the support base 1, a linkage mechanism 4 jointly mounted between the servo motor 3 and the screening frame 2, two screening screens 7 slidably mounted on the inner side of the screening frame 2, and a shaking component jointly mounted on the screening frame 2 and the support base 1. The shaking component includes a movable rod 8 slidably connected to the side of the screening frame 2, a pressing block 10 mounted at the bottom of the movable rod 8, and multiple pressure blocks 11 mounted on the upper part of the screening frame 2. After the servo motor 3 is started, it drives the screening frame 2 to reciprocate through the linkage mechanism 4. When the screening frame 2 moves, it drives the movable rod 8 to move. The movable rod 8 drives the extrusion block 10 to squeeze the pressure block 11, and the resulting shaking force is transmitted to the two screening screens 7. The upper part of the support base 1 is equipped with a feeding frame 14. The feeding frame 14 is equipped with a dispersing component. The dispersing component includes a first rotating rod 15 symmetrically rotated inside the feeding frame 14, multiple push plates 19 installed outside the first rotating rod 15, and a transmission unit installed on the feeding frame 14. When the output shaft of the servo motor 3 rotates, it drives the two first rotating rods 15 to rotate in opposite directions through the transmission unit, and drives the multiple push plates 19 to rotate and beat and disperse the raw materials discharged from the feeding frame 14.

[0018] The screening frame 2 has a sliding groove 5 on its side. Two sliding blocks 6 are slidably arranged inside the sliding groove 5. The sliding blocks 6 are fixedly connected to the screening screen 7. The end of the sliding block 6 away from the screening screen 7 is fixedly connected to the movable rod 8. The movable rod 8 drives the screening screen 7 to move along the sliding groove 5 through the sliding blocks 6.

[0019] The pressure block 11 is positioned above the movement trajectory of the extrusion block 10. The size of the opening formed by two adjacent pressure blocks 11 is adapted to the size of the extrusion block 10. The movable rod 8 causes the extrusion block 10 to extrude the pressure block 11.

[0020] A support plate 12 is installed on the side of the support base 1, and a telescopic rod 9 is installed at the bottom of the support plate 12. The end of the telescopic rod 9 away from the support plate 12 is fixedly connected to the movable rod 8.

[0021] The size of the opening of the sliding groove 5 is adapted to the size of the two sliding blocks 6, and the cross-sections of the sliding blocks 6 and the screening screen 7 are both convex.

[0022] In this embodiment, when screening is required, the raw material can be fed into the screening frame 2 through the feeding frame 14 and screened through the screening screen 7. The servo motor 3 is started, and after the servo motor 3 starts, it drives the screening frame 2 to reciprocate through the linkage mechanism 4 for screening. When the screening frame 2 moves, it drives the movable rod 8 to move. The movable rod 8, along with the pressing block 10, presses the pressure block 11. At this time, the telescopic rod 9 retracts, and the movable rod 8 drives the screening screen 7 to move upward along the sliding groove 5 through the sliding block 6. When the pressing block 10 is between two adjacent pressure blocks 11, the telescopic rod 9, which is in a retracted state, resets. At the same time, the movable rod 9 resets, and the movable rod 8 resets through the sliding block 6. Thus, during the reciprocating movement of the screening frame 2, the screening screen 7 moves up and down continuously, thereby generating a shaking force for screening.

[0023] Example 2

[0024] like Figure 1 - Figure 5 As shown, based on Embodiment 1, the transmission unit includes a first rotating rod 15 near the servo motor 3 and a first transmission belt 13 that is sleeved together between the first rotating rod 15 and the output shaft of the servo motor 3. A second rotating rod 16 is symmetrically rotatably connected to the side of the feeding frame 14. A second transmission belt 17 is sleeved together between the second rotating rod 16 and the first rotating rod 15. When the first rotating rod 15 rotates, it drives the second rotating rod 16 to rotate through the second transmission belt 17.

[0025] The transmission unit also includes a gear 18 mounted on the outside of the second rotating rod 16. Two adjacent gears 18 mesh with each other. When the second rotating rod 16 rotates, it drives the other side of the second rotating rod 16 to rotate in the opposite direction through the adjacent gear 18.

[0026] In this embodiment, when the output shaft of the servo motor 3 rotates, it can drive the first rotating rod 15 near the servo motor 3 to rotate through the first transmission belt 13. When the first rotating rod 15 rotates, it drives the second rotating rod 16 to rotate through the second transmission belt 17. When the second rotating rod 16 rotates, it drives the second rotating rod 16 on the other side to rotate in the opposite direction through the adjacent gear 18. Thus, the first rotating rod 15 on the other side is driven to rotate in the opposite direction through the second transmission belt 17. At this time, the push plates 19 on both sides rotate in the opposite direction to queue the raw materials discharged from the feeding frame 14 and break up the raw materials.

[0027] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A biomass pellet fuel screening device, comprising a support base (1), characterized in that, A screening frame (2) is slidably mounted on the upper part of the support base (1). A servo motor (3) is mounted on the upper part of the support base (1). A linkage mechanism (4) is jointly mounted between the servo motor (3) and the screening frame (2). Two screening screens (7) are slidably mounted on the inner side of the screening frame (2). A shaking component is jointly mounted on the screening frame (2) and the support base (1). The shaking component includes a movable rod (8) slidably connected to the side of the screening frame (2), a pressing block (10) mounted at the bottom of the movable rod (8), and multiple pressure blocks (11) mounted on the upper part of the screening frame (2). After the servo motor (3) is started, it drives the screening frame (2) to reciprocate through the linkage mechanism (4) to perform screening. The screening frame (2) moves When the moving rod (8) moves, the moving rod (8) drives the extrusion block (10) to extrude the pressure block (11) and the resulting shaking force is transmitted to the two screening screens (7). The upper part of the support base (1) is equipped with a feeding frame (14). The feeding frame (14) is equipped with a dispersing component. The dispersing component includes a first rotating rod (15) symmetrically rotated inside the feeding frame (14), multiple push plates (19) installed outside the first rotating rod (15), and a transmission unit set on the feeding frame (14). When the output shaft of the servo motor (3) rotates, it drives the two first rotating rods (15) to rotate in opposite directions through the transmission unit, and drives the multiple push plates (19) to rotate to beat and disperse the raw materials discharged from the feeding frame (14).

2. The biomass pellet fuel screening device according to claim 1, characterized in that, The screening frame (2) has a sliding groove (5) on its side. Two sliding blocks (6) are slidably arranged inside the sliding groove (5). The sliding blocks (6) are fixedly connected to the screening screen (7). The end of the sliding block (6) away from the screening screen (7) is fixedly connected to the movable rod (8).

3. The biomass pellet fuel screening device according to claim 2, characterized in that, The pressure block (11) is located on the movement trajectory of the extrusion block (10), and the size of the opening formed by two adjacent pressure blocks (11) is adapted to the size of the extrusion block (10).

4. The biomass pellet fuel screening device according to claim 3, characterized in that, A support plate (12) is installed on the side of the support base (1), and a telescopic rod (9) is installed at the bottom of the support plate (12). The end of the telescopic rod (9) away from the support plate (12) is fixedly connected to the movable rod (8).

5. A biomass pellet fuel screening device according to claim 1, characterized in that, The transmission unit includes a first rotating rod (15) near the servo motor (3) and a first transmission belt (13) together with the output shaft of the servo motor (3). The side of the feeding frame (14) is symmetrically connected to a second rotating rod (16), and a second transmission belt (17) is together with the second rotating rod (16) and the first rotating rod (15).

6. A biomass pellet fuel screening device according to claim 5, characterized in that, The transmission unit also includes a gear (18) mounted on the outside of the second rotating rod (16), with two adjacent gears (18) meshing with each other.

7. A biomass pellet fuel screening device according to claim 2, characterized in that, The size of the opening of the sliding groove (5) is adapted to the size of the two sliding blocks (6), and the cross-sections of the sliding blocks (6) and the screening screen (7) are both convex.

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