A screening device for biomass pellet production

Abstract

The utility model provides a kind of screening device for biomass particle production, including frame, frame is equipped with screening box and is equipped with support spring between screening box and frame, vibration motor is equipped on screening box, screening board is equipped in screening box, frame is further equipped with feed hopper and the distribution pipe being communicated with feed hopper, the end of distribution pipe being communicated with feed hopper is rotatably connected with frame, the other end extends in the direction of being away from feed hopper, and the end of distribution pipe being away from feed hopper is located directly above screening board, transmission rod is equipped on distribution pipe, sliding block is sleeved on transmission rod, frame is further equipped with driving motor and the output end of driving motor is equipped with rotatable connecting rod, the end of connecting rod being away from driving motor is rotatably connected with sliding block.The utility model solves the technical problem that material is accumulated on screening board to cause blockage to affect screening efficiency, produces the technical effect that the material to be screened is evenly placed on screening board, prevents material accumulation to cause screening board blockage.

Description

Technical Field

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

[0002] Biomass pellets are granular products made from agricultural waste through processes such as crushing, mixing, drying, and extrusion. The production and processing of biomass pellets requires screening of the materials.

[0003] Chinese utility model patent CN223249854U discloses an impurity screening device for biomass pellet production, including a screening box. A feed inlet is fixedly connected to the top of the screening box. Fixed plates are fixedly installed on both sides of the inside of the screening box. First springs are installed at both ends of the top of the fixed plates. A screening plate is installed inside the screening box. The top of the first springs is fixedly connected to the bottom of the screening plate. Vibration motors are installed at both ends of the bottom of the screening plate. A first baffle is slidably installed inside the screening box. The bottom end of the first baffle contacts the screening plate. A pull plate is fixedly connected to the top of the first baffle. A first connecting plate is fixedly connected to one side of the first baffle. A telescopic rod is fixedly connected to the top of the first connecting plate, and the top of the telescopic rod is fixedly connected to the inner wall of the screening box. A second spring is sleeved on the outer end of the telescopic rod. An impurity collection structure is installed inside the screening box. The aforementioned screening device uses a first baffle to block the material and prevent it from flowing out. When the impurities are screened out, the first baffle is pulled upward to allow the material to flow out, thereby preventing incomplete screening of impurities.

[0004] When using the screening device disclosed in the above-mentioned utility model patent, the material is poured into the inside of the screening box through the feed port. The material falls directly onto the screening plate, which can easily cause accumulation and blockage of the screening plate, affecting the screening efficiency. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a screening device for biomass pellet production, which solves the problem of material accumulation on the screening plate causing blockage and affecting screening efficiency.

[0006] According to an embodiment of this utility model, a screening device for biomass pellet production includes a frame, a screening box on the frame and a supporting spring between the screening box and the frame, a vibrating motor on the screening box, a screening plate inside the screening box, a feed hopper and a feeding pipe communicating with the feed hopper on the frame, one end of the feeding pipe communicating with the feed hopper being rotatably connected to the frame and the other end extending away from the feed hopper, and the end of the feeding pipe away from the feed hopper being located directly above the screening plate, a transmission rod on the feeding pipe, a slider sleeved on the transmission rod, a drive motor on the frame and a rotatable connecting rod at the output end of the drive motor, the end of the connecting rod away from the drive motor being rotatably connected to the slider.

[0007] Furthermore, the end of the fabric tube near the feed hopper is provided with an installation part, and the frame is provided with an installation hole that cooperates with the installation part.

[0008] Furthermore, the frame is provided with at least two detachable mounting blocks, which cover the opening of the mounting hole and form an annulus that fits against the mounting part.

[0009] Furthermore, the fabric tube is provided with a guide cover, which is located at the end of the fabric tube away from the feed hopper.

[0010] Furthermore, the bottom of the screening box has a first guide plate, which is located below the screening plate and the height of the first guide plate gradually decreases in the direction away from the feed hopper.

[0011] Furthermore, the frame is also provided with a receiving box, which is located at the end of the first guide plate away from the feed hopper.

[0012] Furthermore, the screening box is also provided with a second guide plate, which is flush with the screening plate and extends away from the receiving box.

[0013] Furthermore, the screening box is provided with a slot, and the screening plate cooperates with the slot.

[0014] Furthermore, the screening plate is provided with a handle, which is located on the side of the screening plate exposed in the slot.

[0015] Compared with existing technologies, this utility model has the following advantages: By using a vibrating motor to drive the screening box and the screening plate set on the screening box to vibrate, the material falling on the screening plate is screened. After the material to be screened is poured into the feed hopper, it enters the feeding pipe under its own gravity and falls onto the screening plate along the feeding pipe. During the material conveying along the feeding pipe, the drive motor drives the connecting rod to rotate, and through the cooperation of the connecting rod and the slider, the feeding pipe is driven to swing back and forth on the frame, so that the material discharged from the end of the feeding pipe away from the feed hopper falls evenly onto the screening plate, avoiding the accumulation of material on the screening plate. It solves the technical problem of material accumulation on the screening plate causing blockage and affecting screening efficiency, and produces the technical effect of evenly placing the material to be screened on the screening plate and preventing material accumulation from causing blockage of the screening plate, ensuring rapid screening of materials and improving screening efficiency. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of a screening device for biomass pellet production according to an embodiment of the present invention; Figure 2 This is a cross-sectional view of a screening device for biomass pellet production according to an embodiment of the present invention; Figure 3 This is a structural schematic diagram of a screening device for biomass pellet production according to an embodiment of the present invention, from another perspective.

[0017] In the above attached figures: 1. Frame; 11. Support spring; 12. Drive motor; 13. Connecting rod; 14. Mounting block; 15. Material receiving box; 2. Screening box; 21. Vibrating motor; 22. First guide plate; 23. Second guide plate; 3. Screening plate; 31. Handle; 4. Feed hopper; 5. Material distribution pipe; 51. Transmission rod; 52. Sliding block; 53. Mounting part; 54. Guide cover. Detailed Implementation

[0018] The technical solution of this utility model will be further described below with reference to the accompanying drawings and embodiments.

[0019] like Figures 1 to 3 As shown in the figure, this utility model embodiment proposes a screening device for biomass pellet production, which is used to screen materials during the biomass pellet production process.

[0020] Please refer to Figure 1 , Figure 2 and Figure 3The biomass pellet production screening device includes a frame 1, a screening box 2 mounted on the frame 1, and a supporting spring 11 between the screening box 2 and the frame 1. A vibration motor 21 is mounted on the screening box 2, and a screening plate 3 is installed inside the screening box 2. The vibration motor 21 causes the screening box 2 and the screening plate 3 installed inside the screening box 2 to vibrate. The frame 1 also includes a feed hopper 4 and a distribution pipe 5 connected to the feed hopper 4. One end of the distribution pipe 5, connected to the feed hopper 4, is rotatably connected to the frame 1, and the other end extends away from the feed hopper 4. The end of the distribution pipe 5 away from the feed hopper 4 is located at the screening box. Directly above plate 3, the material distribution pipe 5 is used to guide the material in the feed hopper 4 to the screening plate 3. The material distribution pipe 5 is equipped with a transmission rod 51, and a slider 52 is sleeved on the transmission rod 51. The frame 1 is also equipped with a drive motor 12, and the output end of the drive motor 12 is equipped with a rotatable connecting rod 13. The end of the connecting rod 13 away from the drive motor 12 is rotatably connected to the slider 52. The drive motor 12 drives the connecting rod 13 to rotate, which in turn drives the material distribution pipe 5 to swing back and forth through the cooperation of the slider 52 and the transmission rod 51, so that the material discharged from the end of the material distribution pipe 5 away from the feed hopper 4 falls evenly onto the screening plate 3.

[0021] Specifically, the operation steps for screening materials using the screening device for biomass pellet production provided in this embodiment are as follows: The vibration motor 21 and the drive motor 12 are turned on respectively. The material to be screened is poured into the feed hopper 4. Under the action of gravity, the material in the feed hopper 4 enters the distribution pipe 5 and falls onto the screening plate 3 along the distribution pipe 5. The material is screened by the vibration of the screening plate 3, and during the vibration of the screening plate 3, the material moves towards the end of the screening plate 3 away from the feed hopper 4 to discharge the screened material. During the material conveying along the distribution pipe 5, the drive motor 12 drives the connecting rod 13 to rotate, and through the cooperation of the connecting rod 13 and the slider 52, the distribution pipe 5 swings back and forth on the frame 1, so that the material discharged from the end of the distribution pipe 5 away from the feed hopper 4 falls evenly onto the screening plate 3, avoiding material accumulation on the screening plate 3. The biomass pellet production screening device provided in this embodiment uses the reciprocating oscillation of the feeding pipe 5 to evenly place the material to be screened onto the screening plate 3, preventing the material from accumulating on the screening plate 3 and causing blockage, thus ensuring rapid screening of the material and improving screening efficiency.

[0022] like Figure 2 and Figure 3As shown, the feeding pipe 5 has a mounting part 53 at one end near the feed hopper 4, and the frame 1 has a mounting hole that mates with the mounting part 53. The feeding pipe 5 is rotatably connected to the frame 1 through the mating of the mounting part 53 and the mounting hole, ensuring that the feeding pipe 5 can rotate smoothly on the frame 1 and facilitating the assembly of the screening device for biomass pellet production.

[0023] In this embodiment, the frame 1 is provided with two detachable mounting blocks 14. The mounting blocks 14 cover the opening of the mounting hole and form an annular shape that fits against the mounting part 53. By using the two mounting blocks 14 to cooperate with the frame 1 to cover the opening of the mounting hole, the mounting part 53 is kept inside the mounting hole, ensuring a stable fit between the material distribution tube 5 and the frame 1 and maintaining communication between the material distribution tube 5 and the feed hopper 4, preventing material from falling outside the material distribution tube 5.

[0024] like Figure 2 As shown, a guide cover 54 is provided on the feeding pipe 5, and the guide cover 54 is located at the end of the feeding pipe 5 away from the feed hopper 4. The guide cover 54 is provided at the end of the feeding pipe 5 to guide the material discharged from the feeding pipe 5 onto the screening plate 3, preventing the material from falling outside the screening box 2 when it collides with the screening plate 3, and blocking the dust generated when the material falls.

[0025] Please combine Figure 1 and Figure 2 The bottom of the screening box 2 has a first guide plate 22, which is located below the screening plate 3 and its height gradually decreases in the direction away from the feed hopper 4. The first guide plate 22 is used to guide impurities screened from the material out of the screening box 2, preventing impurities from remaining in the screening box 2 and causing blockages.

[0026] In detail, the frame 1 is also provided with a receiving box 15, which is located at the end of the first guide plate 22 away from the feed hopper 4. Impurities are discharged from the screening box 2 along the first guide plate 22 and fall into the receiving box 15 to facilitate cleaning of the screening device for biomass pellet production.

[0027] Please refer to Figure 1 The screening box 2 is also provided with a second guide plate 23, which is flush with the screening plate 3 and extends away from the receiving box 15. After the material with impurities removed is discharged from the screening box 2 along the screening plate 3, it falls into the second guide plate 23 and is conveyed along the second guide plate 23 in a direction away from the receiving box 15, which facilitates the collection of the screened material and avoids the material from mixing with impurities again.

[0028] like Figure 1 and Figure 2 As shown, the screening box 2 is provided with a slot, and the screening plate 3 cooperates with the slot. Inserting the screening plate 3 into the slot installs it into the screening box 2, ensuring its stable position within the box. This also facilitates the removal of the screening plate 3 from the box 2 for cleaning or replacement with screening plates of different mesh sizes. This allows the screening device for biomass pellet production to screen materials of different particle sizes, improving its versatility.

[0029] In this embodiment, the sieve plate 3 is provided with a handle 31, which is located on the side of the sieve plate 3 exposed in the slot. The handle 31 is used to move the sieve plate 3 to insert the sieve plate 3 into the slot or to pull the sieve plate 3 out of the slot, facilitating the installation or removal of the sieve plate 3.

[0030] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the spirit and scope of the technical solutions of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A screening device for biomass pellet production, comprising a frame, a screening box mounted on the frame and a supporting spring between the screening box and the frame, a vibrating motor mounted on the screening box, and a screening plate disposed inside the screening box, characterized in that: The frame is also provided with a feed hopper and a feeding pipe communicating with the feed hopper. One end of the feeding pipe communicating with the feed hopper is rotatably connected to the frame, and the other end extends away from the feed hopper. The end of the feeding pipe away from the feed hopper is located directly above the screening plate. A transmission rod is provided on the feeding pipe, and a slider is sleeved on the transmission rod. The frame is also provided with a drive motor, and the output end of the drive motor is provided with a rotatable connecting rod. The end of the connecting rod away from the drive motor is rotatably connected to the slider.

2. The screening device for biomass pellet production as described in claim 1, characterized in that: The fabric tube is provided with an installation part at one end near the feed hopper, and the frame is provided with an installation hole that mates with the installation part.

3. The screening device for biomass pellet production as described in claim 2, characterized in that: The frame is provided with at least two detachable mounting blocks, which cover the opening of the mounting hole and form a ring that fits against the mounting part.

4. The screening device for biomass pellet production as described in claim 1, characterized in that: The fabric tube is equipped with a guide cover, which is located at the end of the fabric tube away from the feed hopper.

5. A screening device for biomass pellet production as described in claim 1, characterized in that: The bottom of the screening box has a first guide plate, which is located below the screening plate and the height of the first guide plate gradually decreases in the direction away from the feed hopper.

6. A screening device for biomass pellet production as described in claim 5, characterized in that: The frame is also provided with a receiving box, which is located at the end of the first guide plate away from the feed hopper.

7. A screening device for biomass pellet production as described in claim 6, characterized in that: The screening box is also provided with a second guide plate, which is flush with the screening plate and extends away from the receiving box.

8. A screening device for biomass pellet production as described in claim 1, characterized in that: The screening box is provided with a slot, and the screening plate cooperates with the slot.

9. A screening device for biomass pellet production as described in claim 8, characterized in that: The sieve plate is provided with a handle, which is located on the side of the sieve plate exposed in the slot.

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