Wear-resistant stand pipe elbow

Abstract

The utility model relates to a wear-resistant stand pipe elbow which comprises a stand pipe elbow body and further comprises a buffering part, the buffering part comprises a connecting body and a buffering piece, a first through hole is formed in the peripheral wall of the outer side of the stand pipe elbow body, and the connecting body is a hollow arc-shaped plate body with the inner end and the outer end open. The inner end of the connector is fixedly connected with the peripheral wall of the outer side of the stand pipe elbow, and an inner end opening covers the first through hole; the buffering piece comprises a shell and a buffering plate, the shell is of an arc-shaped structure formed by bending a hollow cuboid, a second through hole is formed in an inner side plate of the shell, the outer end of the connecting body is fixedly connected with the inner side plate of the shell, the outer end opening covers the second through hole, and the buffering plate is arranged in the shell in a sliding mode. The lower portion of the inner side face of the buffer plate is provided with an elastic plate, the lower end of the elastic plate is fixedly connected with the buffer plate, and the upper end of the elastic plate inclines rightwards and makes contact with the lower side plate of the connector in a sliding mode. The utility model solves the problem that solid particles in the paste abrade the elbow of the conveying pipeline when the paste is filled in the mine goaf.

Description

Technical Field

[0001] This utility model relates to the field of material conveying technology, specifically to a wear-resistant riser elbow. Background Technology

[0002] Mine paste filling is an advanced mining technology that utilizes solid waste generated during mining (such as tailings, coal gangue, fly ash, slag, and inferior soil) to create a paste-like slurry, which is then transported underground to fill goaf areas. The prepared paste filling material is transported to underground goaf areas via pipelines, pumps, or other means.

[0003] The paste material contains solid particles. When the paste is transported in the pipeline, the solid material in the paste will cause wear and tear on the pipeline, especially the elbow at the bottom of the riser. The wear rate is fast, resulting in a short service life of the elbow and high cost of frequent elbow replacement. Summary of the Invention

[0004] This invention addresses the problem of wear on the elbows of conveying pipes caused by solid particles in the paste during paste filling in mining goaf areas. It provides a wear-resistant riser elbow that reduces wear on the riser elbow and extends the service life of the paste conveying pipe.

[0005] To solve the above problems, the technical solution of this utility model is:

[0006] A wear-resistant riser elbow includes a riser elbow and a buffer part. The buffer part includes a connector and a buffer component. The outer peripheral wall of the riser elbow has a through hole one, which is an arc-shaped hole opened along the arc direction of the riser elbow. The connector is a hollow arc-shaped plate with openings at both the inner and outer ends. The inner end of the connector is fixedly connected to the outer peripheral wall of the riser elbow, and the inner end opening covers the outside of the through hole one. The buffer component includes a shell and a buffer plate. The shell is an arc-shaped structure formed by bending a hollow cuboid. The shell and the connector are concentric. The inner side plate of the shell has a through hole two. The outer end of the connector is fixedly connected to the inner side plate of the shell, and the outer end opening covers the outside of the through hole two. A buffer plate is slidably disposed inside the shell. An elastic plate is disposed on the lower part of the inner side of the buffer plate. The lower end of the elastic plate is fixedly connected to the buffer plate. The upper end of the elastic plate extends out of the through hole two and slides to the right to contact the lower side plate of the connector.

[0007] Furthermore, the inner wall of the connector is flush with the side wall of through hole one, and the inner wall of the connector is flush with the side wall of through hole two.

[0008] Furthermore, the central angle corresponding to the shell is greater than the central angle corresponding to the connector, and the distance between the upper end of the shell and the upper end of the connector is equal to the distance between the lower end of the shell and the lower end of the connector.

[0009] Furthermore, the elastic plate is an arc-shaped plate formed by bending a rectangular plate, with the bending direction of the elastic plate facing downward to the right, and the distance between the front and rear ends of the elastic plate corresponds to the distance between the front and rear side plates of the shell.

[0010] Furthermore, the buffer plate is an arc-shaped plate formed by bending a rectangular plate. The side of the buffer plate slides in contact with the inner side of the shell. When the elastic plate is in its natural state, there is a gap between the upper end of the buffer plate and the upper side plate of the shell, and between the lower end and the lower side plate of the shell.

[0011] Furthermore, the inner surface of the buffer plate on the upper side of the elastic plate is evenly distributed with protrusions, and multiple protrusions are located inside the through hole two.

[0012] The beneficial effects of this utility model through the above technical solution are as follows:

[0013] When this invention is in use, as the paste flows from top to bottom through the riser bend, the buffer plate firstly reduces some of the impact energy of the paste; moreover, the paste can form a buffer layer on the inner side of the buffer plate and in the connecting body. When the paste falls, it impacts part of the buffer layer formed by the paste, reducing the flow velocity of the particles in the paste, thereby slowing down the friction on the buffer plate and further reducing the friction and impact of the paste on the riser bend. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model;

[0015] Figure 2 This is a sectional front view of the present invention (the elastic plate is in its natural state).

[0016] Figure 3 This is a schematic diagram of the connection between the buffer plate and the elastic plate of this utility model;

[0017] Figure 4 This is a diagram showing the usage state of this utility model.

[0018] The attached diagram is labeled as follows: 1. Riser elbow, 2. Connector, 3. Through hole one, 4. Shell, 5. Buffer plate, 6. Through hole two, 7. Elastic plate, 8. Protrusion, 9. Buffer layer, 10. Sealing plate. Detailed Implementation

[0019] The present invention will be further described below with reference to the accompanying drawings and specific embodiments:

[0020] like Figures 1-4As shown, a wear-resistant riser elbow includes a riser elbow 1 with a circular cross-section and a buffer section. The buffer section includes a connector 2 and a buffer element. The outer peripheral wall of the riser elbow 1 has a through hole 3, which is an arc-shaped hole opened along the arc direction of the riser elbow 1. The connector 2 is a hollow arc-shaped plate with openings at both the inner and outer ends. The inner end of the connector 2 is fixedly connected to the outer peripheral wall of the riser elbow 1, and the inner end opening covers the through hole 3. The annulus containing the connector 2 and the annulus containing the riser elbow 1 are concentric. The buffer element includes a shell 4 and a buffer plate 5. The shell 4 is an arc-shaped structure formed by bending a hollow cuboid. The housing 4 and the connecting body 2 are concentric. The outer end opening of the housing 4 is blocked by the sealing plate 10. The outer end of the housing 4 is opposite to the riser elbow 1, and the inner end is facing the riser elbow 1. The inner side plate of the housing 4 is provided with a through hole 6. The through hole 6 is an arc-shaped hole opened along the arc direction of the inner side plate of the housing 4. The outer end of the connecting body 2 is fixedly connected to the inner side plate of the housing 4, and the outer end opening is covered outside the through hole 6. A buffer plate 5 is slidably provided inside the housing 4. An elastic plate 7 is provided on the lower part of the inner side of the buffer plate 5. The lower end of the elastic plate 7 is fixedly connected to the buffer plate 5. The upper end of the elastic plate extends out of the through hole 2 and slides to the right to contact the lower side plate of the connecting body 2.

[0021] The inner wall of the connector 2 is flush with the side wall of the through hole 3, and the inner wall of the connector 2 is flush with the side wall of the through hole 6.

[0022] The central angle corresponding to the shell 4 is greater than the central angle corresponding to the connector 2, and the distance between the upper end of the shell 4 and the upper end of the connector 2 is equal to the distance between the lower end of the shell 4 and the lower end of the connector 2.

[0023] The elastic plate 7 is an arc-shaped plate formed by bending a rectangular plate. The bending direction of the elastic plate is towards the lower right. The elastic plate is an arc-shaped plate made of spring steel. The distance between the front and rear ends of the elastic plate 7 corresponds to the distance between the front and rear side plates of the housing 4. The distance between the front and rear ends of the elastic plate 7 corresponds to the distance between the front and rear side plates of the connecting body 2.

[0024] The buffer plate 5 is an arc-shaped plate formed by bending a rectangular plate. The side of the buffer plate 5 slides in contact with the inner side of the shell 4. When the elastic plate 7 is in its natural state, the upper end of the buffer plate 5 contacts the upper side plate of the shell 4, and there is a gap between the lower end of the buffer plate 5 and the lower side plate of the shell 4.

[0025] The inner side of the buffer plate 5 on the upper side of the elastic plate 7 is evenly distributed with protrusions 8. The protrusions 8 are hemispherical and fixed to the buffer plate in a plane. Multiple protrusions 8 are located in the through hole 6.

[0026] When in use, the paste used for filling goaf areas in mines flows from top to bottom through the riser elbow 1. The paste first flows into the connector 2 through the through hole 3, and then impacts the buffer plate 5 inside the shell 4 through the outer end opening of the connector 2. After being impacted, the buffer plate 5 moves towards the lower end of the shell 4 along the arc direction of the shell. Since the lower end of the elastic plate 7 is connected to the buffer plate 5, the lower end of the elastic plate 7 moves with the buffer plate 5. The upper end of the elastic plate 7 moves along the lower side plate of the connector 2, and the elastic plate 7 deforms. The impact energy of the paste on the buffer plate 5 is converted into the potential energy of the elastic plate 7, which can reduce the impact energy of the paste on the buffer plate 5. Therefore, it can reduce the friction of solid particles in the paste on the buffer plate 5. Moreover, since the elastic plate 7 is an arc plate, when the paste flows downward along the buffer plate 5, it can enter the pipe behind the riser elbow 1 under the guidance of the elastic plate 7, which improves the fluidity of the paste.

[0027] The buffer plate 5 has multiple protrusions 8 evenly distributed on it. These protrusions 8 can trap a portion of the paste, so that the trapped paste forms a buffer layer 9 on the inner side of the buffer plate 5 and inside the connector 2. When the paste falls, it does not directly impact the buffer plate 5, but first impacts the buffer layer 9 formed by part of the paste. The mutual friction between the solid particles in the falling paste and the solid particles in the buffer layer 9 reduces the flow velocity of the particles in the paste, thereby slowing down the friction on the buffer plate 5 and further reducing the friction and impact of the paste on the riser elbow 1.

[0028] The preferred embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Any equivalent or equivalent modifications or substitutions to the technical solutions of the present utility model without departing from the spirit of the present utility model or the scope of disclosure shall fall within the protection scope of the present utility model.

Claims

1. A wear-resistant riser elbow, comprising a riser elbow (1), characterized in that, It also includes a buffer section, which includes a connector (2) and a buffer component. The outer peripheral wall of the riser elbow (1) is provided with a through hole (3). The through hole (3) is an arc-shaped hole opened along the arc direction of the riser elbow (1). The connector (2) is a hollow arc-shaped plate with openings at both the inner and outer ends. The inner end of the connector (2) is fixedly connected to the outer peripheral wall of the riser elbow (1), and the inner end opening is covered outside the through hole (3). The buffer component includes a shell (4) and a buffer plate (5). The shell (4) is a hollow cuboid bent into shape. The arc-shaped structure has a shell (4) and a connector (2) concentric. The inner side plate of the shell (4) is provided with a through hole (6). The outer end of the connector (2) is fixedly connected to the inner side plate of the shell (4) and the outer end is open outside the through hole (6). A buffer plate (5) is slidably provided inside the shell (4). An elastic plate (7) is provided on the lower part of the inner side of the buffer plate (5). The lower end of the elastic plate (7) is fixedly connected to the buffer plate (5). The upper end of the elastic plate extends out of the through hole (2) and slides to the right to contact the lower side plate of the connector (2).

2. The wear-resistant riser elbow according to claim 1, characterized in that, The inner wall of the connector (2) is flush with the side wall of the first through hole (3), and the inner wall of the connector (2) is flush with the side wall of the second through hole (6).

3. The wear-resistant riser elbow according to claim 1, characterized in that, The central angle corresponding to the shell (4) is greater than the central angle corresponding to the connector (2), and the distance between the upper end of the shell (4) and the upper end of the connector (2) is equal to the distance between the lower end of the shell (4) and the lower end of the connector (2).

4. The wear-resistant riser elbow according to claim 2, characterized in that, The elastic plate (7) is an arc-shaped plate formed by bending a rectangular plate. The bending direction of the elastic plate is towards the lower right. The distance between the front and rear ends of the elastic plate (7) corresponds to the distance between the front and rear side plates of the shell (4).

5. A wear-resistant riser elbow according to claim 4, characterized in that, The buffer plate (5) is an arc-shaped plate formed by bending a rectangular plate. The side of the buffer plate (5) slides in contact with the inner side of the shell (4). When the elastic plate (7) is in its natural state, the upper end of the buffer plate (5) contacts the upper side plate of the shell (4), and there is a gap between the lower end and the lower side plate of the shell (4).

6. A wear-resistant riser elbow according to claim 5, characterized in that, The inner side of the buffer plate (5) on the upper side of the elastic plate (7) is evenly distributed with protrusions (8), and multiple protrusions (8) are located in the through hole two (6).

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