Abrasion-resistant chute

Abstract

This invention discloses a wear-resistant chute, comprising: a chute body, which is divided into an impact section and a guide section along its flow direction, the impact section being located at the impact point of the falling material; an impact trough, disposed at the impact section, for receiving the falling material, and the material can accumulate in the impact trough; and a wear-resistant plate, covering the bottom of the chute in the guide section, with multiple grids on the top, each grid containing a metal ball, the top of the metal ball protruding from the grid. In this invention, the falling material fills the impact trough, preventing subsequent material from impacting and causing wear on the bottom of the impact trough. The metal balls within the grids reduce friction compared to a pure grid, making the chute less prone to stretching and deformation. Furthermore, some material bounces upwards after passing the metal balls, reducing the chance of contact between the material and the grid below the metal balls, thus making the wear-resistant plate more wear-resistant.

Description

Technical Field

[0001] This invention relates to the field of chute technology, and more particularly to a wear-resistant chute. Background Technology

[0002] Chutes are widely used in the material transportation field of industrial production sites. They are mainly used to receive various solid particles and powdery materials transported by belts or pipelines and transfer them to the next production operation process.

[0003] In mining operations, grinding media such as steel balls are often used to transfer larger ore particles and steel balls with high hardness and weight. Because large ore pieces and steel balls are thrown directly from a height to the bottom of the chute, they will have a very large impact on the landing point, causing severe wear of the chute in this area. Furthermore, the hard and irregular grinding media will accelerate the wear of the bottom of the chute. If the chute is worn through, it will cause slurry leakage or material leakage, leading to the shutdown of the entire production system and causing significant economic losses.

[0004] Currently, the industry often solves this problem by installing replaceable wear-resistant liners at the bottom of the chute. However, this method has drawbacks such as high operating costs and limited improvement in service life. Another existing technology involves laying a mesh at the bottom of the chute to slow down wear. In this method, as material flows along the chute, material close to the bottom accumulates within the mesh. Once the mesh is full, other material flows on the surface of the accumulated material and on top of the mesh, preventing frictional wear on the chute bottom and extending its service life. However, this method results in significant friction during material flow within the chute. When transferring heavy grinding media, the media exerts a pulling force along the chute's inclination, moving downwards. This pulling force concentrates at the joints at the chute ends, easily causing deformation of the joints. Summary of the Invention

[0005] The main objective of this invention is to provide a wear-resistant chute that can delay wear at the bottom of the chute and prevent the connecting ends of the chute from being stretched and deformed.

[0006] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: a wear-resistant chute, comprising:

[0007] The chute body is divided into an impact section and a guide section along its flow direction, and the impact section is located at the impact point of the material falling from the top.

[0008] An impact trough, located at the impact section, is used to catch the material falling from above, and the material can accumulate inside the impact trough.

[0009] A wear-resistant plate covers the bottom of the chute in the guide section, and multiple grids are provided on the top. Each grid contains a metal ball, and the top of the metal ball protrudes from the grid.

[0010] Furthermore, the metal ball is arranged to roll within the grid.

[0011] Furthermore, the metal ball is fixedly disposed within the grid.

[0012] Furthermore, a slope is provided on one side of the corresponding impact groove of the wear-resistant plate.

[0013] Furthermore, the impact groove is provided with an inclined block, the inclined surface of the inclined block faces the direction of the guide section, and the height of the inclined surface is higher than that of the guide section, which is used to guide the material falling onto the inclined block to the guide section.

[0014] Furthermore, an installation groove is provided at the position of the corresponding inclined block in the impact groove, the bottom of the inclined block is located in the installation groove, the inclined block can move up and down in the installation groove, and at least one buffer pad is provided between the installation groove and the inclined block. The height of the inclined block can be changed by increasing or decreasing the number of buffer pads.

[0015] At least one waist-shaped groove is vertically opened at the position of the corresponding inclined block on the groove wall away from the guide section of the impact groove, and bolts are inserted in the waist-shaped groove to attach the inclined block to the groove wall of the impact groove.

[0016] Furthermore, the bottom of the impact groove is provided with a cleaning port, and a material cover is provided that can open and close the cleaning port.

[0017] The beneficial effects of this invention are reflected in:

[0018] In this invention, the upper material falls into the impact trough and fills it. Because the impact trough is filled with material, subsequent material entering will not cause impact and wear on the bottom of the impact trough. Furthermore, a support can be erected at the impact trough or a support plate can be placed at the bottom of the impact trough to guide the falling impact of the material directly to the ground. After the impact trough is filled, the remaining material flows on the surface of the accumulated material into the guide section of the chute. Because the wear-resistant plate has a mesh with metal balls inside, compared to a pure mesh, on the one hand, the friction between the smooth surface of the metal balls and the material is smaller, thus reducing the pulling force applied to the chute and making the chute less prone to deformation; on the other hand, some material will jump upwards after passing the metal balls, reducing the chance of the material contacting the mesh below the metal balls, making the wear-resistant plate more wear-resistant. Attached Figure Description

[0019] Figure 1 This is a perspective view of the wear-resistant chute described in this invention;

[0020] Figure 2 This is a front view of the wear-resistant chute described in this invention;

[0021] Figure 3 This is a top view of the wear-resistant chute described in this invention;

[0022] Figure 4 This is an exploded view of the wear-resistant chute described in this invention.

[0023] In the picture:

[0024] 1. Chute body; 11. Impact section; 12. Guide section; 2. Impact groove; 21. Waist-shaped groove; 22. Bolt; 23. Cleaning port; 24. Material cover; 3. Wear-resistant plate; 31. Mesh; 32. Metal ball; 33. Slope; 4. Inclined block; 5. Installation groove; 6. Buffer pad. Detailed Implementation

[0025] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. Unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other.

[0026] Please see Figures 1-4 .

[0027] This invention discloses a wear-resistant chute, comprising:

[0028] The chute body 1 is divided into an impact section 11 and a guide section 12 along its flow direction. The impact section 11 is located at the impact point of the upper material falling.

[0029] Impact groove 2 is set at impact section 11 to receive material falling from above, and the material can accumulate in impact groove 2;

[0030] Wear-resistant plate 3 covers the bottom of the chute of the guide section 12, and multiple grids 31 are provided on the top. Each grid 31 contains a metal ball 32, and the top of the metal ball 32 protrudes from the grid 31.

[0031] In practice, the upper material falls into the impact trough 2 and fills it. Because the impact trough 2 is filled with material, the subsequent material entering will not cause impact wear on the bottom of the impact trough 2. Furthermore, a support can be erected at the impact trough 2 or a support plate can be installed at the bottom of the impact trough 2 (not shown in the figure) to guide the falling impact of the material directly to the ground. After the impact trough 2 is filled, the remaining material flows on the surface of the accumulated material into the guide section 12 of the chute. Since the wear-resistant plate 3 has a mesh 31, and the mesh 31 has metal balls 32, compared with the form of pure mesh 31, the friction between the smooth surface of the metal balls 32 and the material will be smaller. The reason for using a spherical shape instead of a ramp 4 is that when materials, especially ore, flow, there are many uncertainties inside, and some materials will have lateral displacement. Compared with the wedge shape, the metal ball 32 will have less friction in all directions, thus reducing the pulling force applied to the chute and making the chute less prone to deformation. On the other hand, some materials will jump upwards when passing through the metal ball 32, reducing the chance of the materials contacting the grid 31 below the metal ball 32, making the wear-resistant plate 3 more wear-resistant (it can be approximated that the materials flow on the top of the metal ball 32, and the faster the material flow rate, the more materials flow on the top of the metal ball 32 without contacting the grid 31).

[0032] Preferably, the grid 31 can be square or a spherical groove that cooperates with the metal ball 32.

[0033] Preferably, the wear-resistant plate 3 can be welded into a grid shape from wear-resistant steel plates, and a 150mm forged steel ball is placed in each grid. The gaps in the grid can store materials of suitable particle size (materials are automatically stored when they flow into the gaps), and this part of the material is used to separate other falling materials from the wear-resistant plate 3 at the bottom of the chute.

[0034] As for how the wear-resistant plate 3 is fixed to the guide section 12 of the chute body 1, this is common knowledge to those skilled in the art. For example, bolts can be inserted through the side of the chute body 1 to fix the wear-resistant plate 3, or the wear-resistant plate 3 can be welded to the chute body 1. There are many ways, and they are all common knowledge in the prior art. Therefore, the specific installation method will not be described in detail here.

[0035] In one embodiment, the metal ball 32 can be rolled within the grid 31 or fixedly disposed within the grid 31. When the metal ball 32 is in a rolling state, the grid 31 can be a spherical groove. The metal ball 32 and the spherical groove can be configured with reference to the ball head structure of a hinged ball, or other existing structures that allow the metal ball 32 to rotate within the groove without detaching from it (e.g., when the grid 31 is a square, the center of the metal ball 32 is located inside the grid 31, and the top of the grid 31 is slightly narrowed, allowing the metal ball 32 to rotate while remaining detached from the grid 31). Since this structure is common knowledge to those skilled in the art, it will not be described in detail here. The rolling metal ball 32 improves the flowability of materials within the chute and reduces the pulling force applied to the chute.

[0036] In one embodiment, an inclined ramp 33 is provided on one side of the corresponding impact groove 2 of the wear-resistant plate 3 to guide the material impacted in the impact groove 2 into the top of the wear-resistant plate 3 and reduce the resistance when the material enters the guide section 12.

[0037] In one embodiment, the impact groove 2 is provided with an inclined block 4, the inclined surface of the inclined block 4 faces the direction of the guide section 12, and the height of the inclined surface is higher than that of the guide section 12, for guiding the material falling onto the inclined block 4 to the guide section 12.

[0038] In practice, because the impact groove 2 has a certain depth, the kinetic energy of the material is greatly reduced after it enters the impact groove 2, resulting in a low flow velocity when the material enters the guide section 12. This makes it easy for the material to become clogged at the impact groove 2, which is not conducive to rapid material discharge. The inclined block 4 causes some material to fall onto the inclined block 4 and then be deflected directly into the guide section 12 under the action of the inclined block 4. In this process, the material deflected into the guide section 12 will drive the originally slower material to flow faster, thereby increasing the flow velocity of the material in the guide section 12. While avoiding clogging, it can also reduce the chance of the material contacting the grid 31 below the metal ball 32, making the wear-resistant plate 3 more wear-resistant.

[0039] Preferably, the inclined block 4 is disposed in the middle of the impact groove 2 and the back of the inclined block 4 contacts the groove wall of the impact groove 2 away from the guide section 12. In specific implementations, there are various ways to install the inclined block 4 in the impact groove 2. The simplest is welding, followed by fixing with bolts 22. Of course, other methods in the prior art can also be used to install the inclined block 4. Since there are many installation methods and they are all common knowledge to those skilled in the art, they will not be described in detail here.

[0040] In one embodiment, an installation groove 5 is provided at the position of the corresponding inclined block 4 in the impact groove 2. The bottom of the inclined block 4 is located in the installation groove 5. The inclined block 4 can move up and down in the installation groove 5. At least one buffer pad 6 is provided between the installation groove 5 and the inclined block 4. The height of the inclined block 4 can be changed by adding or removing the buffer pad 6.

[0041] At least one waist-shaped groove 21 is vertically provided on the wall of the impact groove 2 away from the guide section 12 at the position of the corresponding inclined block 4. Bolts 22 are inserted in the waist-shaped groove 21 to connect the inclined block 4 to the wall of the impact groove 2.

[0042] With this design, the inclined block 4 can be made of a metal block with a certain thickness at the top or a solid metal block. When the top of the inclined block 4 wears down and its height decreases, the height of the inclined block 4 can be changed by increasing the number of buffer pads 6, allowing the inclined block 4 to continue to perform its original function and improving its service life. At the same time, the use of buffer pads 6 can also prevent damage to the bottom of the mounting groove 5. The mounting groove 5 also facilitates the disassembly and replacement of the inclined block 4. The waist-shaped groove 21 and bolts 22 allow the back of the inclined block 4 to contact the wall of the impact groove 2 without affecting the height adjustment of the inclined block 4, preventing material from entering the back of the inclined block 4.

[0043] In one embodiment, the bottom of the impact groove 2 is provided with a cleaning port 23, and a material cover 24 is provided that can open and close the cleaning port 23. This design makes it easier to clean the material remaining in the impact groove 2.

[0044] It should be noted that if the embodiments of the present invention involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicators will also change accordingly.

[0045] Furthermore, the technical solutions of the various embodiments can be combined with each other, but only if they are feasible for those skilled in the art. If the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed by this invention.

[0046] Additionally, "multiple" refers to two or more.

[0047] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A wear-resistant chute, characterized in that, include: The chute body (1) is divided into an impact section (11) and a guide section (12) along its flow direction. The impact section (11) is located at the impact point of the material falling from the top. Impact groove (2) is set at impact section (11) to receive the material falling from above, and the material can be accumulated in impact groove (2); Wear-resistant plate (3) covers the bottom of the chute of the guide section (12), and multiple grids (31) are provided on the top. Each grid (31) contains a metal ball (32), and the top of the metal ball (32) protrudes from the grid (31). The wear-resistant plate (3) has a ramp (33) on one side corresponding to the impact groove (2); The impact groove (2) is provided with an inclined block (4), the inclined surface of the inclined block (4) faces the direction of the guide section (12), and the height of the inclined surface is higher than the top height of the guide section (12), which is used to guide the material falling onto the inclined block (4) to the guide section (12). An installation groove (5) is provided in the impact groove (2) at a position relative to the inclined block (4). The bottom of the inclined block (4) is located in the installation groove (5). The inclined block (4) can move up and down in the installation groove (5). At least one buffer pad (6) is provided between the installation groove (5) and the inclined block (4). The height of the inclined block (4) can be changed by increasing or decreasing the number of buffer pads (6). At least one waist-shaped groove (21) is vertically provided on the wall of the impact groove (2) away from the guide section (12) at a position opposite to the inclined block (4). A bolt (22) is inserted in the waist-shaped groove (21) to abut the inclined block (4) against the wall of the impact groove (2).

2. The wear-resistant chute according to claim 1, characterized in that, The metal ball (32) is rolled within the grid (31).

3. The wear-resistant chute according to claim 1, characterized in that, The metal ball (32) is fixedly set in the grid (31).

4. The wear-resistant chute according to claim 1, 2, or 3, characterized in that, The bottom of the impact groove (2) is provided with a cleaning port (23) and a material cover (24) that can open and close the cleaning port (23).

Images