Flexible noise reduction transfer chute

Abstract

This utility model relates to the technical field of bulk material conveying equipment and discloses a flexible noise-reducing transfer chute for silos, including a support frame and a trough body fixed to the side of the support frame. The trough body is L-shaped, with a feed pipe fixedly connected to the top of the trough body and a discharge pipe fixedly connected to the bottom of the trough body. This flexible noise-reducing transfer chute for silos, through the combined arrangement of arc-shaped baffles and arc-shaped guide plates, changes the trajectory of material falling directly against the inner wall in traditional chutes. The material is first initially buffered by the arc-shaped baffles and then guided to the surface of the buffer assembly by the arc-shaped guide plates. The double-layer buffering energy absorption of the closed-cell foam rubber sound-absorbing board and the polyurethane rubber board significantly reduces the vibration and noise generated by material impact. Simultaneously, a buffer assembly is also installed in the second mounting slot at the L-shaped bend of the trough body to absorb the secondary impact of the material at the bend, further optimizing the overall noise reduction performance.

Description

Technical Field

[0001] This utility model relates to the technical field of bulk material conveying equipment, specifically a flexible noise-reducing transfer chute for storage. Background Technology

[0002] In the bulk material storage and logistics system, the silo transfer chute is the core transitional component connecting the conveying system and the storage silo. Its core function is to realize the directional transfer, angle adjustment and flow rate buffering of materials from the upstream conveying equipment to the downstream silo, so as to avoid the materials directly impacting the inner wall of the silo and causing wear or splashing of materials. At the same time, it ensures the continuity and stability of the material loading and unloading process. It is an indispensable key equipment in the entire chain of bulk material conveying, storage and distribution.

[0003] An existing patent (publication number: CN213801441U) discloses a noise-reducing and wear-resistant non-standard chute, which includes a vertically arranged V-shaped through groove. The top of the V-shaped through groove is provided with a top straight through groove connected to the V-shaped through groove, and the bottom of the V-shaped through groove is provided with a bottom straight through groove connected to the V-shaped through groove. The V-shaped through groove, the top straight through groove and the bottom straight through groove are all made of composite board.

[0004] The aforementioned patent, during use, utilizes an inner 16Mn steel plate to improve the overall wear resistance of the noise-reducing and wear-resistant non-standard chute, effectively extending the service life of the entire chute. The industrial felt placed between the outer Q235 ordinary steel plate and the inner 16Mn steel plate absorbs the noise generated by the impact of blocky materials on the chute, thereby reducing the overall noise transmission of the chute. This achieves both reduced noise pollution and extended service life of the chute. While the patent relies on the industrial felt to absorb the vibration of the inner 16Mn steel plate to reduce noise during use, the impact of materials striking the inner steel plate still generates noise, affecting the overall noise reduction effect. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a flexible noise-reducing transfer chute for storage, which has the advantage of achieving efficient noise reduction through a multi-level buffer structure, thus solving the problems mentioned in the background technology.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a flexible noise-reducing transfer chute for storage, comprising a support and a trough body fixed to the side of the support. The trough body is L-shaped, with a feed pipe fixedly connected to the top of the trough body and a discharge pipe fixedly connected to the bottom of the trough body. An arc-shaped baffle and an arc-shaped guide plate are fixed to the inner wall of the trough body. A first mounting groove is provided on the side of the trough body, corresponding to the arc-shaped guide plate. A first mounting plate is provided at the position of the first mounting groove. A buffer component corresponding to the first mounting groove is installed on the inner wall of the first mounting plate. The buffer component includes a closed-cell foam rubber sound-absorbing plate in contact with the first mounting plate. A polyurethane rubber plate is installed on the upper surface of the closed-cell foam rubber sound-absorbing plate. A second mounting groove is provided at the L-shaped bend of the trough body. A second mounting plate is provided at the position of the second mounting groove. A buffer component corresponding to the second mounting groove is installed on the inner wall of the second mounting plate.

[0007] Furthermore, a fixing groove is fixed at the position of the first mounting groove on the side of the groove body, and the first mounting plate is fixed to the fixing groove by fastening bolts.

[0008] The above solution enables a detachable connection between the first mounting plate and the groove, facilitating regular inspection and replacement of the buffer assembly and ensuring its continuous and effective buffering and noise reduction performance.

[0009] Furthermore, an L-shaped slot is fixed to the side of the groove, and a slot block corresponding to the L-shaped slot is fixed to the side of the second mounting plate. The slot block engages with the L-shaped slot. Multiple connecting blocks are fixed at the position of the second mounting slot on the side of the groove, and multiple fixing blocks are fixed to the side of the second mounting plate. The fixing blocks and their corresponding connecting blocks are connected by bolts.

[0010] The above solution achieves a stable installation of the second mounting plate and the groove. The snap-fit ​​structure between the groove block and the L-shaped slot can quickly position the second mounting plate. Combined with the bolt connection between the connecting block and the fixing block, it improves the convenience of installation and the connection strength, making it easy to disassemble and replace the buffer component when it ages or is damaged.

[0011] Furthermore, the arc-shaped guide plate is located below the arc-shaped baffle, and the bending direction of the arc-shaped guide plate is opposite to the bending direction of the trough.

[0012] The above solution avoids the material from directly impacting the inner wall of the tank and falling in a columnar shape at the center of the vertical section of the tank by using an arc-shaped baffle. The material is guided to the inner wall of the tank by an arc-shaped guide plate. After being buffered by the buffer component on the first mounting plate, the material changes to slide down along the inner wall of the tank, which effectively reduces the direct impact area between the material and the tank and reduces the noise generated by the impact.

[0013] Furthermore, an inclined fixing plate is fixed to the inner wall of the bottom end of the trough. The fixing plate is located above the connection position between the trough and the discharge pipe. A closing plate is hinged to the inner wall of the bottom end of the trough. A torsion spring is installed between the closing plate and the trough. The closing plate is in contact with the fixing plate.

[0014] With the above scheme, when the material slides to the bottom of the tank, the fixed plate plays an initial guiding role for the material, causing the material to flow towards the closing plate. As the material continues to accumulate, its gravity gradually overcomes the elastic force of the torsion spring, pushing the closing plate to rotate downwards. The material can then pass through the gap between the closing plate and the bottom of the tank and enter the discharge pipe. When the material conveying is finished, the elastic restoring force of the torsion spring drives the closing plate to rotate upwards and re-contact with the fixed plate, forming a sealed structure.

[0015] Furthermore, a lifting sleeve is fitted onto the outer surface of the discharge pipe, a lifting seat is fixed to the side of the lifting sleeve, a fixed seat is fixed to the side of the trough, a threaded rod is inserted into the upper surface of the lifting sleeve, the threaded rod is threadedly connected to the fixed seat, a tray is fixed to the bottom end of the threaded rod, and a turntable is fixed to the top end of the threaded rod.

[0016] Through the above scheme, rotating the turntable can drive the threaded rod to move up and down along the threaded hole of the fixed seat, and then push the lifting sleeve to rise and fall along the outer surface of the discharge pipe through the pallet, so as to adjust the height of the discharge port at the bottom of the discharge pipe to adapt to the docking needs of different silos or downstream conveying equipment, thereby enhancing the versatility and operational flexibility of the equipment.

[0017] Compared with the prior art, the technical solution of this utility model has the following beneficial effects:

[0018] This flexible noise-reducing transfer chute, through the combined use of arc-shaped baffles and arc-shaped guide plates, changes the trajectory of materials falling directly against the inner wall in traditional chutes. The materials are first initially buffered by the arc-shaped baffles, and then guided to the surface of the buffer components by the arc-shaped guide plates. Through the double-layer buffering and energy absorption of the closed-cell foam rubber sound-absorbing board and polyurethane rubber board, the vibration and noise generated by the material impact are significantly reduced. At the same time, a buffer component is also set in the second installation slot at the L-shaped bend of the chute to absorb the secondary impact of the material at the bend, further optimizing the overall noise reduction performance. Attached Figure Description

[0019] Figure 1 This is a three-dimensional structural diagram of the present application;

[0020] Figure 2 This is a side view of the overall tank structure of this application;

[0021] Figure 3 This is a sectional view of the side view of the overall arc-shaped guide vane of this application;

[0022] Figure 4 This is a sectional view of the side view of the overall arc-shaped baffle of this application;

[0023] Figure 5 This is a side view of the overall lifting sleeve of this application;

[0024] Figure 6 This is a sectional view of the side view of the overall lifting sleeve of this application;

[0025] Figure 7 This is a structural diagram of the overall buffer assembly of this application.

[0026] In the picture:

[0027] 1. Support frame; 2. Tank body; 3. Feed pipe; 4. Discharge pipe; 5. Arc-shaped baffle; 6. Arc-shaped guide plate; 7. First mounting plate;

[0028] 8. Buffer components; 801. Closed-cell foam rubber sound-absorbing board; 802. Polyurethane rubber board;

[0029] 9. Second mounting plate; 10. Fixing groove; 11. L-shaped slot; 12. Groove block; 13. Connecting block; 14. Fixing block; 15. Fixing plate; 16. Closing plate; 17. Lifting sleeve; 18. Lifting seat; 19. Fixing seat; 20. Threaded rod; 21. Tray; 22. Turntable. Detailed Implementation

[0030] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0031] Please see Figure 1 - Figure 7The flexible noise reduction transfer chute in this embodiment includes a support 1 and a trough 2 fixed to the side of the support 1. The trough 2 is L-shaped. The top of the trough 2 is fixedly connected to a feed pipe 3, and the bottom of the trough 2 is fixedly connected to a discharge pipe 4. The inner wall of the trough 2 is fixedly equipped with an arc-shaped baffle 5 and an arc-shaped guide plate 6. A first mounting groove is opened on the side of the trough 2, which corresponds to the arc-shaped guide plate 6. A first mounting plate 7 is provided at the position of the first mounting groove of the trough 2. A buffer component 8 corresponding to the first mounting groove is installed on the inner wall of the first mounting plate 7. The buffer component 8 includes a closed-cell foam rubber sound-absorbing plate 801 in contact with the first mounting plate 7. A polyurethane rubber plate 802 is installed on the upper surface of the closed-cell foam rubber sound-absorbing plate 801. A second mounting groove is opened at the L-shaped bend of the trough 2. A second mounting plate 9 is provided at the position of the second mounting groove of the trough 2. The inner wall of the second mounting plate 9 is installed with a buffer component 8 corresponding to the second mounting groove.

[0032] Please see Figure 2 , Figure 3 and Figure 4 A fixing groove 10 is fixed at the position of the first mounting groove on the side of the groove 2. The first mounting plate 7 is fixed to the fixing groove 10 by fastening bolts, realizing the detachable connection between the first mounting plate 7 and the groove 2. This facilitates the regular inspection and replacement of the buffer component 8, ensuring its continuous and effective buffering and noise reduction performance. An L-shaped slot 11 is fixed on the side of the groove 2. A groove block 12 corresponding to the L-shaped slot 11 is fixed on the side of the second mounting plate 9. The groove block 12 is engaged with the L-shaped slot 11. Multiple connecting blocks 13 are fixed at the position of the second mounting groove on the side of the groove 2. Multiple fixing blocks 14 are fixed on the side of the second mounting plate 9. The fixing blocks 14 and their corresponding connecting blocks 13 are connected by bolts, realizing the stable installation of the second mounting plate 9 and the groove 2. The engaging structure between the groove block 12 and the L-shaped slot 11 can quickly position the second mounting plate 9. Combined with the bolt connection between the connecting block 13 and the fixing block 14, it improves the convenience of installation and the connection strength, making it easy to disassemble and replace the buffer component 8 when it ages or is damaged.

[0033] Please see Figure 3 , Figure 4 and Figure 6 The arc-shaped guide plate 6 is located below the arc-shaped baffle 5, and the bending direction of the arc-shaped guide plate 6 is opposite to the bending direction of the tank 2. The arc-shaped baffle 5 prevents the material from directly impacting the inner wall of the tank 2 and falling in a columnar shape at the center of the vertical section of the tank 2. The arc-shaped guide plate 6 guides the material to the inner wall of the tank 2. After being buffered by the buffer component 8 on the first mounting plate 7, the material changes to slide down along the inner wall of the tank 2, effectively reducing the direct impact area between the material and the tank 2 and reducing the noise generated by the impact.

[0034] Please see Figure 2 , Figure 5 and Figure 6 An inclined fixing plate 15 is fixed to the inner wall of the bottom end of the tank 2. The fixing plate 15 is located above the connection between the tank 2 and the discharge pipe 4. A closing plate 16 is hinged to the inner wall of the bottom end of the tank 2. A torsion spring is installed between the closing plate 16 and the tank 2. The closing plate 16 is in contact with the fixing plate 15. When the material slides to the bottom of the tank 2, the fixing plate 15 plays an initial guiding role for the material, causing the material to flow towards the closing plate 16. As the material continues to accumulate, its gravity gradually overcomes the elastic force of the torsion spring, pushing the closing plate 16 to rotate downwards. The material can then pass through the gap between the closing plate 16 and the bottom of the tank 2 and enter the discharge pipe 4. When the material conveying is finished, the elastic restoring force of the torsion spring drives the closing plate 16 to rotate upwards and reconnect with the fixing plate 16. The plates 15 contact to form a sealed structure. A lifting sleeve 17 is fitted onto the outer surface of the discharge pipe 4. A lifting seat 18 is fixed to the side of the lifting sleeve 17. A fixed seat 19 is fixed to the side of the trough 2. A threaded rod 20 is inserted into the upper surface of the lifting sleeve 17. The threaded rod 20 is threadedly connected to the fixed seat 19. A tray 21 is fixed to the bottom end of the threaded rod 20. A turntable 22 is fixed to the top end of the threaded rod 20. Rotating the turntable 22 can drive the threaded rod 20 to move up and down along the threaded hole of the fixed seat 19. In turn, the tray 21 pushes the lifting sleeve 17 to rise and fall along the outer surface of the discharge pipe 4, thereby adjusting the height of the discharge port at the bottom of the discharge pipe 4 to adapt to the docking requirements of different silos or downstream conveying equipment, enhancing the versatility and operational flexibility of the equipment.

[0035] It should be noted that before use, the position of the lifting sleeve 17 should be adjusted according to the size of the material to be conveyed and the docking requirements with the downstream conveying equipment.

[0036] The working principle of the above embodiment is as follows: When in use, the operator first rotates the turntable 22 to drive the threaded rod 20 to rotate in the fixed seat 19. Under the action of the thread, the threaded rod 20 moves axially along the fixed seat 19, and the tray 21 at its bottom pushes the lifting sleeve 17 to slide along the outer wall of the discharge pipe 4. The lifting seat 18 and the lifting sleeve 17 move synchronously until the discharge port at the bottom of the discharge pipe 4 is adjusted to a height that matches the downstream equipment or silo.

[0037] After adjustment, the material enters the tank 2 from the feed pipe 3, first contacting the arc-shaped baffle 5, and then the arc-shaped guide plate 6. The combination of the arc-shaped baffle 5 and the arc-shaped guide plate 6 changes the falling trajectory of the material directly impacting the inner wall in the traditional chute. The material is first initially buffered by the arc-shaped baffle 5, and then guided by the arc-shaped guide plate 6 to the surface of the buffer component 8. Through the double-layer buffering energy absorption of the closed-cell foam rubber sound-absorbing plate 801 and the polyurethane rubber plate 802, the vibration and noise generated by the material impact are significantly reduced. At the same time, the second installation slot at the L-shaped bend of the tank 2 is also equipped with a buffer component 8 to absorb the secondary impact of the material at the bend, further optimizing the overall noise reduction performance. Finally, the material is guided to the closing plate 16 by the fixing plate 15. The gravity of the material overcomes the spring force of the torsion spring, causing the closing plate 16 to rotate. The material enters the discharge pipe 4 and is discharged from the adjusted height. After the conveying is completed, the torsion spring drives the closing plate 16 to reset, achieving a seal.

[0038] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0039] Although embodiments of this application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A flexible noise-reducing transfer chute for storage, comprising a support (1) and a trough (2) fixed to the side of the support (1), characterized in that: The trough (2) is L-shaped. A feed pipe (3) is fixedly connected to the top of the trough (2), and a discharge pipe (4) is fixedly connected to the bottom of the trough (2). An arc-shaped baffle (5) and an arc-shaped guide plate (6) are fixedly installed on the inner wall of the trough (2). A first mounting groove is provided on the side of the trough (2), which corresponds to the arc-shaped guide plate (6). A first mounting plate (7) is provided at the position of the first mounting groove in the trough (2). The inner wall of the first mounting plate (7) is fitted with a part corresponding to the first mounting groove. The corresponding buffer component (8) includes a closed-cell foam rubber sound-absorbing board (801) that contacts the first mounting plate (7). A polyurethane rubber board (802) is installed on the upper surface of the closed-cell foam rubber sound-absorbing board (801). A second mounting groove is provided at the L-shaped bend of the groove (2). A second mounting plate (9) is provided at the second mounting groove position of the groove (2). The inner wall of the second mounting plate (9) is equipped with a buffer component (8) corresponding to the second mounting groove.

2. The bin flexible noise abatement transfer chute of claim 1, wherein: A fixing groove (10) is fixed at the position of the first mounting groove on the side of the groove (2), and the first mounting plate (7) is fixed to the fixing groove (10) by fastening bolts.

3. The bin flexible noise abatement transfer chute of claim 1, wherein: The side of the groove (2) is fixed with an L-shaped slot (11), and the side of the second mounting plate (9) is fixed with a slot block (12) corresponding to the L-shaped slot (11). The slot block (12) is engaged with the L-shaped slot (11). Multiple connecting blocks (13) are fixed at the position of the second mounting slot on the side of the groove (2). Multiple fixing blocks (14) are fixed on the side of the second mounting plate (9). The fixing blocks (14) and the corresponding connecting blocks (13) are connected by bolts.

4. The bin flexible noise abatement transfer chute of claim 1, wherein: The arc-shaped guide plate (6) is located below the arc-shaped baffle (5), and the bending direction of the arc-shaped guide plate (6) is opposite to the bending direction of the tank (2).

5. The bin flexible noise abatement transfer chute of claim 1, wherein: An inclined fixing plate (15) is fixed to the inner wall of the bottom end of the trough (2). The fixing plate (15) is located above the connection position between the trough (2) and the discharge pipe (4). A closing plate (16) is hinged to the inner wall of the bottom end of the trough (2). A torsion spring is installed between the closing plate (16) and the trough (2). The closing plate (16) is in contact with the fixing plate (15).

6. The bin flexible noise abatement transfer chute of claim 5, wherein: The outer surface of the discharge pipe (4) is fitted with a lifting sleeve (17), the side of the lifting sleeve (17) is fixed with a lifting seat (18), the side of the trough (2) is fixed with a fixing seat (19), the upper surface of the lifting sleeve (17) is inserted with a threaded rod (20), the threaded rod (20) is threadedly connected to the fixing seat (19), the bottom end of the threaded rod (20) is fixed with a tray (21), and the top end of the threaded rod (20) is fixed with a turntable (22).

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