A transfer funnel with an inner liner

Abstract

A material transfer funnel with an internal liner, belonging to the technical field of material transfer funnels, includes a funnel body with a square cross-section. One inner side of the funnel body is the material-facing surface, on which a wear-resistant liner is provided. The wear-resistant liner includes an arc-shaped liner and a flat material-facing liner. Several flat material-facing liners are arranged continuously on the material-facing surface. The arc-shaped liners are distributed on both sides of the arranged flat material-facing liners, and are located along the vertical edge of the material-facing surface. The flat material-facing liners can directly withstand the impact of materials, improving the wear resistance of the material-facing surface. The arc-shaped liners, distributed on both sides of the flat material-facing liners, can change the flow trajectory of materials after impacting the material-facing surface, preventing materials from directly impacting and accumulating at the angle between the material-facing surface and the inner walls on both sides, ensuring material throughput efficiency. Simultaneously, it reduces uneven structural stress caused by material accumulation, lowering cleaning requirements and safety risks.

Description

Technical Field

[0001] This utility model belongs to the field of material transfer funnel technology, specifically a material transfer funnel with an inner liner. Background Technology

[0002] Currently, in bulk cargo handling, belt conveyors are the main equipment. Material transfer between belt conveyors is primarily achieved through transfer funnels. This transfer method relies on gravity to transfer material from the upstream conveyor to the downstream conveyor, and is simple and reliable in structure. The transfer funnel is a square, barrel-shaped structure with only two openings, top and bottom. The end of the upstream conveyor head extends into the inlet of the transfer funnel, and material enters the funnel along with the upstream conveyor. The bottom opening of the transfer funnel is above the downstream conveyor, allowing material to fall directly onto the downstream conveyor, thus achieving material transfer.

[0003] The design of the transfer funnel itself requires that the material undergo a certain number of impacts and changes in its falling direction within its interior to buffer the material's descent and reduce impact on the downstream conveyor belt. Therefore, in the design of the transfer funnel, there is a plane, called the funnel's "welcoming surface," directly opposite the direction in which the material enters the funnel. This surface is used to withstand the direct impact of the material brought in by the upstream conveyor belt. For belt conveyor systems used in large-scale bulk cargo handling, this welcoming surface of the transfer funnel is essential. In actual handling operations, we have found that after impacting the welcoming surface within the transfer funnel, the material not only veers back in the opposite direction of its trajectory (thus achieving the required buffering effect), but also overflows to both sides of the welcoming surface. This large amount of material continuously overflowing to both sides easily accumulates at the angle between the welcoming surface and the inner walls of the transfer funnel on both sides, and is continuously impacted by subsequent material until a very solid arc-shaped accumulation area is formed. The size of this area is related to the viscosity and particle size of the material. The finer the particle size and the higher the viscosity, the more material will accumulate in this area. This can lead to the following problems:

[0004] 1. If this area is large, it will gradually affect the material throughput efficiency of the entire transfer funnel, and may gradually clog the funnel, affecting the normal passage and conveying of materials, leading to production interruption.

[0005] 2. Uneven material accumulation may lead to uneven local stress, causing additional pressure on the funnel structure, resulting in deformation, cracks or even damage.

[0006] 3. During the process of cleaning up the accumulated material here, because this location is close to the inlet of the transfer funnel and has a long vertical distance from the bottom outlet of the transfer funnel, it may pose safety risks to workers such as falls from height and being struck by objects.

[0007] 4. Cleaning up accumulated materials requires additional manpower, resources, and time, increasing operating costs and reducing operational efficiency.

[0008] 5. If the accumulated material is mixed with subsequent materials, it will also affect the quality of the goods. Utility Model Content

[0009] To address the problem that when materials are transferred through a funnel, they tend to accumulate at the angle between the inner walls on both sides of the receiving surface, forming an arc-shaped accumulation area. This leads to material blockage, difficult cleaning, high risk, and funnel deformation and damage. This invention provides a transfer funnel with an inner liner.

[0010] This utility model is achieved through the following technical solution:

[0011] A material transfer funnel with an inner liner includes a funnel body with a square cross-section. One inner side of the funnel body is a material-facing surface, and a wear-resistant liner is provided on the material-facing surface. The wear-resistant liner includes an arc-shaped liner and a flat material-facing liner. Several flat material-facing liners are provided and are arranged continuously on the material-facing surface. The arc-shaped liners are distributed on both sides of the arrangement of the several flat material-facing liners and are distributed on the vertical edge of the material-facing surface.

[0012] The flat liner facing the material can directly withstand the impact of the material, improving the wear resistance of the material-facing surface. The arc-shaped liners distributed on both sides of the flat liner facing the material can change the flow trajectory of the material after impacting the material-facing surface, avoiding direct impact and accumulation of material at the angle between the material-facing surface and the inner walls on both sides. This structurally eliminates the core cause of material accumulation, reduces the risk of funnel blockage, and ensures the efficiency of material passage. At the same time, it reduces the problem of uneven structural stress caused by material accumulation, extends the service life of the funnel body, and reduces cleaning needs and safety risks.

[0013] A further improvement of this invention is that the inner wall of the funnel body also includes two side material-receiving surfaces, which are respectively located on both sides of the front material-receiving surface. A portion of the arc-shaped liner is installed on the corresponding side material-receiving surface. The arc-shaped liner extends to the side material-receiving surface, covering the angled area between the front material-receiving surface and the inner walls on both sides, forming a continuous arc-shaped guiding structure. This avoids the formation of impact dead zones at the angles, completely blocking the accumulation path of materials at the angles and reducing the formation of accumulated materials. After being guided by the arc-shaped liner, the material flows more smoothly, reducing local impact on the inner wall of the funnel and reducing the risk of structural deformation or damage.

[0014] A further improvement of this invention is that a side-facing flat liner is also provided on the aforementioned side-facing material receiving surface, and the side-facing flat liner is adjacent to the arc-shaped liner. The connection between the side-facing flat liner and the arc-shaped liner on the side-facing material receiving surface increases the coverage area of ​​the liner within the funnel body, forming a complete wear-resistant protection system. This not only enhances the wear resistance of the side-facing material receiving surface but also ensures the continuity of material flow from the arc-shaped liner to the side-facing flat liner, avoiding material stagnation due to abrupt structural changes.

[0015] A further improvement of this invention is that the wear-resistant liner is made of one of the following materials: wear-resistant steel plate, high-chromium alloy, or alumina ceramic. Using a highly wear-resistant material allows it to withstand high-frequency impacts and friction from materials, solving the problem of easy wear on the material-facing surface of traditional funnels. Simultaneously, the high surface smoothness of this material reduces material adhesion. This significantly extends the liner replacement cycle, reducing maintenance costs; reduces material retention on the liner surface, indirectly reducing material accumulation; and prevents damage to the funnel body due to liner wear, improving equipment operational stability. A further improvement of this invention is that the funnel body has a truncated pyramidal structure, wider at the top and narrower at the bottom. This optimized structure improves the smoothness of material descent, guides material to gather at the bottom outlet, enhances material flowability, and reduces residence time within the funnel.

[0016] A further improvement of this invention is that the funnel body is provided with an avoidance notch, which is positioned opposite to the material-facing surface and located at the upper part of the funnel body. The avoidance notch can be adapted to the installation of the upstream conveyor head, avoiding equipment interference, while ensuring that the material smoothly enters the funnel from the upstream conveyor, reducing material spillage or impact deviation at the inlet.

[0017] A further improvement of this invention is that the aforementioned arc-shaped liner is a right-angled curved plate, and the inner surface of the right-angled curved plate is an arc-shaped surface. The right-angled curved plate structure can precisely fit the angle between the front and side material-facing surfaces, and the arc-shaped inner surface can guide the material to smoothly turn downwards and to both sides. The material turns more smoothly after impact, reducing the impact force at the angle and avoiding material rebound and retention caused by the right-angle structure, significantly reducing the probability of material accumulation; at the same time, it reduces the reverse impact force of the material on the inner wall of the funnel, reducing the risk of structural damage.

[0018] A further improvement of this invention is that the cross-section of the aforementioned arc-shaped liner has a fan-shaped annular structure. After the material is guided by the fan-shaped annular liner, the flow direction is more concentrated, reducing the impact and accumulation on both sides of the funnel, preventing excessive overflow of material to both sides, and further reducing the risk of blockage; at the same time, it reduces the friction between the material and the inner wall, extending the service life of the equipment.

[0019] As can be seen from the above technical solutions, the beneficial effects of this utility model are: the front-facing flat liner can directly withstand the impact of materials, improving the wear resistance of the front-facing surface; the arc-shaped liners distributed on both sides of the front-facing flat liner can change the flow trajectory of materials after impacting the front-facing surface, avoiding direct impact and accumulation of materials at the angle between the front-facing surface and the inner walls on both sides, structurally eliminating the core cause of material accumulation, reducing the risk of funnel blockage, and ensuring the efficiency of material passage; at the same time, it reduces the problem of uneven structural stress caused by material accumulation, extends the service life of the funnel body, and reduces cleaning requirements and safety risks. Attached Figure Description

[0020] To more clearly illustrate the technical solution of this utility model, the drawings used in the description will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a first-view structural diagram of a specific embodiment of the present invention.

[0022] Figure 2 This is a second-view structural diagram of a specific embodiment of the present invention.

[0023] Figure 3 This is a schematic diagram of the first structure of the arc-shaped liner according to a specific embodiment of the present utility model.

[0024] Figure 4 This is a schematic diagram of the second structure of the arc-shaped liner plate according to a specific embodiment of the present utility model.

[0025] In the attached diagram: 10. Funnel body; 11. Clearance opening; 12. Front material receiving surface; 13. Side material receiving surface; 20. Wear-resistant liner; 21. Arc-shaped liner; 211. Mounting countersunk hole; 212. Locking bolt; 22. Front material receiving plane liner; 23. Side material receiving plane liner. Detailed Implementation

[0026] To make the objectives, features, and advantages of this utility model more apparent and understandable, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings of the specific embodiments. Obviously, the embodiments described below are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this patent, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this patent.

[0027] Example 1:

[0028] like Figures 1-4As shown, this utility model discloses a material transfer funnel with an inner liner, including a funnel body 10 with a square cross-section. One inner side of the funnel body 10 is a material-facing surface 12, and a wear-resistant liner 20 is provided on the material-facing surface 12. The wear-resistant liner 20 includes an arc-shaped liner 21 and a material-facing planar liner 22. Several material-facing planar liner 22s are provided and are arranged continuously on the material-facing surface 12. The arc-shaped liner 21s are distributed on both sides of the several material-facing planar liner 22s and are distributed on the vertical edge of the material-facing surface 12.

[0029] The front-facing flat liner 22 can directly withstand the impact of materials, improving the wear resistance of the front-facing surface 12. The arc-shaped liner 21 is distributed on both sides of the front-facing flat liner 22, which can change the flow trajectory of materials after impacting the front-facing surface 12, avoiding direct impact and accumulation of materials at the angle between the front-facing surface 12 and the inner walls on both sides. This structurally eliminates the core cause of material accumulation, reduces the risk of funnel blockage, and ensures the efficiency of material passage. At the same time, it reduces the problem of uneven structural stress caused by material accumulation, extends the service life of the funnel body 10, and reduces cleaning requirements and safety risks.

[0030] Example 2:

[0031] like Figures 1-2 As shown, the funnel body 10 is provided with an avoidance notch 11, which is disposed opposite to the material receiving surface 12 and located at the upper part of the funnel body 10. The avoidance notch 11 can be adapted to the installation of the upstream conveyor head to avoid equipment interference, while ensuring that the material enters the funnel smoothly from the upstream conveyor and reducing the scattering or impact deviation of the material at the inlet.

[0032] Example 3:

[0033] like Figures 1-2 As shown, the inner wall of the funnel body 10 also includes two side material receiving surfaces 13, which are respectively located on both sides of the front material receiving surface 12. A portion of the arc-shaped liner 21 is installed on the corresponding side material receiving surface 13. The arc-shaped liner 21 extends to the side material receiving surface 13, covering the angled area between the front material receiving surface 12 and the inner walls on both sides, forming a continuous arc-shaped guiding structure. This avoids the formation of impact dead angles at the angles, completely blocks the accumulation path of materials at the angles, and reduces the formation of accumulated materials. After being guided by the arc-shaped liner 21, the material flows more smoothly, reducing local impact on the inner wall of the funnel and reducing the risk of structural deformation or damage.

[0034] The side material receiving surface 13 is also provided with a side material receiving plane liner 23, which is adjacent to the arc-shaped liner 21. The side material receiving plane liner 23 on the side material receiving surface 13 is connected to the arc-shaped liner 21, which increases the coverage area of ​​the liner in the funnel body 10 and forms a complete wear-resistant protection system. This not only enhances the wear resistance of the side material receiving surface 13, but also ensures the continuity of material flow from the arc-shaped liner 21 to the side material receiving plane liner 23, avoiding material stagnation due to structural abrupt changes.

[0035] Example 4:

[0036] like Figures 1-4 As shown, the wear-resistant liner 20 is made of one of the following materials: wear-resistant steel plate, high-chromium alloy, or alumina ceramic. The selection of a highly wear-resistant material allows it to withstand high-frequency impacts and friction from materials, solving the problem of easy wear on the material-facing surface 12 of traditional funnels. Simultaneously, the high surface smoothness of this material reduces material adhesion. This significantly extends the liner replacement cycle, reducing maintenance costs; reduces material retention on the liner surface, indirectly reducing material accumulation; and prevents damage to the funnel body 10 due to liner wear, improving equipment operational stability. The funnel body 10 has a truncated pyramidal structure, wider at the top and narrower at the bottom. This optimized structure improves the smoothness of material descent, guides material to gather at the bottom outlet, enhances material flowability, and reduces residence time within the funnel.

[0037] Example 5:

[0038] like Figures 1-3 As shown, the arc-shaped liner 21 is a right-angled curved plate, and the inner surface of the right-angled curved plate is an arc-shaped surface. The right-angled curved plate structure can precisely fit the angle between the front material-facing surface 12 and the side material-facing surface 13. The arc-shaped inner surface can guide the material to smoothly turn downwards and to both sides. The material turns more smoothly after impact, reducing the impact force at the angle and avoiding material rebound and retention caused by the right-angle structure, significantly reducing the probability of material accumulation. At the same time, it reduces the reverse impact force of the material on the inner wall of the funnel, reducing the risk of structural damage.

[0039] Example 6:

[0040] like Figure 1 , Figure 2 and Figure 4 As shown, the arc-shaped liner 21 has a fan-shaped annular cross-section. After being guided by the fan-shaped annular liner, the material flows more concentratedly, reducing impact and accumulation on both sides of the funnel, preventing excessive overflow of material to both sides, and further reducing the risk of blockage; at the same time, it reduces friction between the material and the inner wall, extending the equipment life.

[0041] The wear-resistant liner 20 is mounted on the funnel body 10 by locking bolts 212. The front material receiving plane liner 22, the side material receiving plane liner 23 and the arc-shaped liner 21 are provided with mounting countersunk holes 211 at the four corners, and the locking bolts 212 are located in the mounting countersunk holes 211.

[0042] The material transfer funnel with an inner liner described in this utility model has a front-facing liner that can directly withstand the impact of materials, improving the wear resistance of the front-facing surface. Arc-shaped liners are distributed on both sides of the front-facing liner, altering the flow trajectory of materials after impacting the front-facing surface. This prevents materials from directly impacting and accumulating at the angle between the front-facing surface and the inner walls on both sides, structurally eliminating the core cause of material accumulation, reducing the risk of funnel blockage, and ensuring efficient material flow. Simultaneously, it reduces uneven structural stress caused by material accumulation, extends the service life of the funnel body, and reduces cleaning requirements and safety risks.

[0043] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A material transfer funnel with an inner liner, comprising a funnel body (10) with a square cross-section, characterized in that, One of the inner sides of the funnel body (10) is the material-facing surface (12), and a wear-resistant liner (20) is provided on the material-facing surface (12). The wear-resistant liner (20) includes an arc-shaped liner (21) and a material-facing planar liner (22). There are several material-facing planar liners (22), which are arranged continuously on the material-facing surface (12). The arc-shaped liner (21) is located on both sides of the material-facing planar liner (22) after they are arranged, and the arc-shaped liner (21) is distributed on the vertical edge of the material-facing surface (12).

2. The material transfer funnel with an inner liner as described in claim 1, characterized in that, The inner wall of the funnel body (10) also includes a side material receiving surface (13). There are two side material receiving surfaces (13), which are respectively located on both sides of the front material receiving surface (12). A part of the arc-shaped liner (21) is installed on the corresponding side material receiving surface (13).

3. A material transfer funnel with an inner liner as described in claim 2, characterized in that, The side material receiving surface (13) is also provided with a side material receiving plane liner (23), which is adjacent to the arc-shaped liner (21).

4. A material transfer funnel with an inner liner as described in claim 2, characterized in that, The wear-resistant liner (20) is made of one of the following materials: wear-resistant steel plate, high chromium alloy, or alumina ceramic.

5. A material transfer funnel with an inner liner as described in claim 2, characterized in that, The funnel body (10) is a truncated quadrangular structure that is larger at the top and smaller at the bottom.

6. A material transfer funnel with an inner liner as described in claim 1, characterized in that, The funnel body (10) is provided with an avoidance notch (11), which is opposite to the material receiving surface (12) and located at the upper part of the funnel body (10).

7. A transfer funnel with an inner liner as described in any one of claims 1 to 6, characterized in that, The arc-shaped liner (21) is a right-angled curved plate, and the inner side of the right-angled curved plate is an arc-shaped surface.

8. A transfer funnel with an inner liner according to any one of claims 1 to 6, characterized in that, The cross-section of the arc-shaped liner (21) has a fan-shaped annular structure.

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