Blanking pipe

Abstract

The utility model discloses a blanking pipe. A first flow guide plate, a second flow guide plate, a third flow guide plate and a fourth flow guide plate which are inclined and parallel to one another are arranged on the inner side of the pipe wall of the blanking pipe. The flow guide plates are arranged in the blanking pipe, so that fire coal is distributed to different areas to fall under the action of the flow guide plates and finally is uniformly distributed in the raw coal bunker, the maximum coal piling quantity of the raw coal bunker can be improved, the efficiency of a coal conveying system is improved, and the workload of operation and maintenance personnel is reduced.

Description

Technical Field

[0001] This utility model relates to the field of coal unloading technology, specifically to a material discharge pipe. Background Technology

[0002] In the coal bunker of a coal-fired power plant, belt conveyors typically use plow-type unloaders for unloading. When coal is unloaded into the feed pipe through the plow blades, the forward inertia of the coal during the unloading process causes it to concentrate on one side of the feed pipe. This concentration of coal on one side results in uneven coal stacking in the raw coal bunker, affecting the maximum coal storage capacity, reducing the efficiency of the coal transportation system, and increasing the workload of maintenance personnel. Utility Model Content

[0003] The purpose of this utility model application is to address the shortcomings of the prior art by providing a material feeding pipe. By setting a guide plate at a specific position inside the material feeding pipe, the coal can be evenly distributed in the raw coal bunker after passing through the material feeding pipe.

[0004] To achieve the above objectives, the present invention provides a material feeding tube with the following technical solution:

[0005] The system includes a discharge pipe body, inside which are inclined and parallel first, second, third, and fourth guide plates. The apex of the first guide plate is located at 1 / 2 of the inlet diameter (L), the apex of the second guide plate is located at 1 / 4 of the inlet diameter (L), the apex of the third guide plate is located at 1 / 8 of the inlet diameter (L), and the apex of the fourth guide plate is located at 1 / 16 of the inlet diameter (L). The apexes of the first, second, third, and fourth guide plates are all located on the material concentration side, and their lowest points are all far from the material concentration side. By adopting this technical solution, when coal is unloaded into the discharge pipe, it is diverted to different areas by the action of the guide plates, ultimately achieving the goal of uniform distribution of coal in the raw coal bunker.

[0006] Preferably, the apexes of the first and second guide plates are both located at the upper 1 / 3 of the overall height of the discharge pipe, the apex of the third guide plate is located at 1 / 2 of the overall height of the discharge pipe, and the apex of the fourth guide plate is located at the lower 1 / 3 of the overall height of the discharge pipe; the lowest points of the first, second, third, and fourth guide plates are all located at the lower 1 / 10 of the overall height of the discharge pipe. By adopting this technical solution, coal is less likely to accumulate at the inlet when unloaded into the discharge pipe, and its distribution is more even after falling into the raw coal bunker.

[0007] Preferably, the first, second, third, and fourth guide plates all form angles of 40° to 60° with the horizontal plane. By adopting this technical solution, the coal slides more smoothly along the guide plates.

[0008] Preferably, the first guide plate, the second guide plate, the third guide plate and the fourth guide plate are all at an angle of 55° to the horizontal plane.

[0009] Preferably, the first, second, third, and fourth guide plates are all made of angle steel and are fixed to the material discharge pipe body by welding. This technical solution makes the installation of the guide plates more convenient and stable.

[0010] Preferably, the first, second, third, and fourth guide plates have identical structures, each including a first guide section and a second guide section symmetrically arranged on two opposite sides of the inner wall of the material discharge pipe, with a gap between the first and second guide sections for material to fall. By adopting this technical solution, when coal is unloaded into the material discharge pipe, a portion of the material can fall through the gap, making the coal fall more smoothly and more evenly after reaching the raw coal bunker.

[0011] Preferably, at least one reinforcing bracket is provided on the outer side of the material discharge pipe body. By adopting this technical solution, the structural strength of the material discharge pipe can be enhanced.

[0012] Preferably, the outer side of the material discharge pipe body is provided with a first reinforcing bracket, a second reinforcing bracket, and a third reinforcing bracket from top to bottom. All three reinforcing brackets are horizontal, and their horizontal heights are all within the height range of the area where the first guide plate is installed. By adopting this technical solution, the reinforcing brackets can provide better support for the material discharge pipe.

[0013] Preferably, the horizontal height of the second reinforcing bracket is consistent with the horizontal height of the midpoint of the first guide vane. By adopting this technical solution, the reinforcing bracket can provide better support for the area where the first guide vane is installed.

[0014] The beneficial effects achieved by this utility model are:

[0015] By installing multiple guide plates inside the main body of the discharge pipe, the coal is diverted to different areas after being unloaded into the discharge pipe, ultimately achieving the goal of uniformly distributing the coal in the raw coal bunker. This increases the maximum coal storage capacity of the raw coal bunker, improves the efficiency of the coal transportation system, and reduces the workload of maintenance personnel. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the internal structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the external structure of this utility model;

[0018] Figure 3 This is a top view of the present invention;

[0019] The components are: 1. the material discharge pipe body; 2. the first guide plate; 3. the second guide plate; 4. the third guide plate; 5. the fourth guide plate; 6. the first reinforcing bracket; 7. the second reinforcing bracket; and 8. the third reinforcing bracket. Detailed Implementation

[0020] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0021] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0022] The following is in conjunction with the appendix Figure 1-3 The present invention will be described in further detail below.

[0023] like Figure 1As shown, a material discharge pipe includes a discharge pipe body 1. The inner side of the discharge pipe body 1 is provided with an inclined and parallel first guide plate 2, a second guide plate 3, a third guide plate 4, and a fourth guide plate 5. In this embodiment, the dimensions of the discharge pipe are 1800mm × 500mm × 1500mm (length × width × height). The first guide plate 2 and the second guide plate 3 have the same length. The vertex of the first guide plate 2 is located at 1 / 2 of the inlet diameter L, the vertex of the second guide plate 3 is located at 1 / 4 of the inlet diameter L, the vertex of the third guide plate 4 is located at 1 / 8 of the inlet diameter L, and the vertex of the fourth guide plate 5 is located at 1 / 16 of the inlet diameter L. The vertices of the first guide plate 2, the second guide plate 3, the third guide plate 4, and the fourth guide plate 5 are all located on the material concentration side, and their lowest points are all far from the material concentration side. The apexes of the first guide plate 2 and the second guide plate 3 are both located at the upper 1 / 3 of the overall height of the discharge pipe, the apex of the third guide plate 4 is located at the 1 / 2 of the overall height of the discharge pipe, and the apex of the fourth guide plate 5 is located at the lower 1 / 3 of the overall height of the discharge pipe. The lowest points of the first guide plate 2, the second guide plate 3, the third guide plate 4, and the fourth guide plate 5 are all located at the lower 1 / 10 of the overall height of the discharge pipe. The angles between the first guide plate 2, the second guide plate 3, the third guide plate 4, and the fourth guide plate 5 and the horizontal plane are all between 40° and 60°, and in this embodiment, the angle is 55°. The first guide plate 2, the second guide plate 3, the third guide plate 4, and the fourth guide plate 5 are all angle steel ∠90×150×14, and are fixed to the discharge pipe body 1 by welding. This technical solution enables the coal to be diverted to different areas under the action of each guide plate when it is unloaded into the discharge pipe, ultimately achieving the goal of uniform distribution of coal in the raw coal bunker.

[0024] like Figure 2 As shown, at least one reinforcing bracket is provided on the outer side of the material discharge pipe body 1. These reinforcing brackets are all angle steel and are fixed to the material discharge pipe body 1 by welding. In this embodiment, from top to bottom, the outer side of the material discharge pipe body 1 is provided with a first reinforcing bracket 6, a second reinforcing bracket 7, and a third reinforcing bracket 8. All three brackets are horizontal, and their horizontal heights are all within the height range of the area where the first guide plate 2 is installed. The spacing between each reinforcing bracket is 300mm. The horizontal height of the second reinforcing bracket 7 is consistent with the horizontal height of the midpoint of the first guide plate 2. This technical solution facilitates the installation of the reinforcing brackets and increases the structural strength of the material discharge pipe body 1.

[0025] like Figure 3As shown, the first guide plate 2, the second guide plate 3, the third guide plate 4, and the fourth guide plate 5 have the same structure, each including a first guide section and a second guide section symmetrically arranged on two opposite sides of the inner wall of the material discharge pipe body 1, with a gap between the first guide section and the second guide section for material to fall. By adopting this technical solution, when the coal is unloaded into the material discharge pipe, a portion of the material can fall through the gap, making the coal fall more smoothly and more evenly after falling into the raw coal bunker.

[0026] The specific implementation steps are as follows:

[0027] Coal is unloaded into the drop pipe through a plow-type unloader. Under the action of various guide plates, the coal is diverted to different areas and falls, eventually being evenly distributed in the raw coal bunker. This increases the maximum coal storage capacity of the raw coal bunker, improves the efficiency of the coal transportation system, and reduces the workload of maintenance personnel.

[0028] It should be noted that the above description of the technical solutions is exemplary, and this specification may be embodied in different forms and should not be construed as limiting it to the technical solutions set forth herein. Rather, providing these descriptions will ensure that the disclosure of this utility model is thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art. Furthermore, the technical solutions of this utility model are defined only by the scope of the claims.

[0029] For those skilled in the art to which this utility model pertains, several simple deductions or substitutions can be made without departing from the concept of this utility model, and the above structures should all be considered to fall within the protection scope of this utility model.

Claims

1. A material feeding tube, characterized in that: The device includes a discharge pipe body (1), and the discharge pipe body (1) is provided with an inclined and parallel first guide plate (2), a second guide plate (3), a third guide plate (4) and a fourth guide plate (5) on its inner side; the vertex of the first guide plate (2) is located at 1 / 2 of the inlet diameter (L), the vertex of the second guide plate (3) is located at 1 / 4 of the inlet diameter (L), the vertex of the third guide plate (4) is located at 1 / 8 of the inlet diameter (L), and the vertex of the fourth guide plate (5) is located at 1 / 16 of the inlet diameter (L); the vertices of the first guide plate (2), the second guide plate (3), the third guide plate (4) and the fourth guide plate (5) are all located on the material concentration side, and the lowest point is far away from the material concentration side.

2. The material feeding tube according to claim 1, characterized in that: The apex of the first guide plate (2) and the second guide plate (3) are both located at the upper 1 / 3 of the overall height of the discharge pipe, the apex of the third guide plate (4) is located at 1 / 2 of the overall height of the discharge pipe, and the apex of the fourth guide plate (5) is located at the lower 1 / 3 of the overall height of the discharge pipe; the lowest point of the first guide plate (2), the second guide plate (3), the third guide plate (4) and the fourth guide plate (5) are all located at the lower 1 / 10 of the overall height of the discharge pipe.

3. A material feeding tube according to claim 1, characterized in that: The first guide plate (2), the second guide plate (3), the third guide plate (4) and the fourth guide plate (5) all have an angle of 40° to 60° with the horizontal plane.

4. A material feeding tube according to claim 3, characterized in that: The first guide plate (2), the second guide plate (3), the third guide plate (4) and the fourth guide plate (5) all have an angle of 55° with the horizontal plane.

5. A material feeding tube according to claim 1, characterized in that: The first guide plate (2), the second guide plate (3), the third guide plate (4) and the fourth guide plate (5) are all angle steel and are fixed to the material drop pipe body (1) by welding.

6. A material feeding tube according to claim 5, characterized in that: The first guide plate (2), the second guide plate (3), the third guide plate (4) and the fourth guide plate (5) have the same structure. They all include a first guide part and a second guide part symmetrically arranged on two opposite sides of the inner wall of the material drop pipe body (1). There is a gap between the first guide part and the second guide part for material drop.

7. A material feeding tube according to claim 1, characterized in that: At least one reinforcing bracket is provided on the outside of the material drop tube body (1).

8. A material feeding tube according to claim 7, characterized in that: The outer side of the material discharge pipe body (1) is provided with a first reinforcing bracket (6), a second reinforcing bracket (7) and a third reinforcing bracket (8) from top to bottom. The first reinforcing bracket (6), the second reinforcing bracket (7) and the third reinforcing bracket (8) are all horizontal, and their horizontal heights are all within the height range of the area where the first guide plate (2) is set.

9. A material feeding tube according to claim 8, characterized in that: The horizontal height of the second reinforcing bracket (7) is consistent with the horizontal height of the midpoint of the first guide plate (2).

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