Railway track sand blowing system

Abstract

This utility model discloses a railway track sand blowing system, belonging to the field of railway track maintenance technology. It includes: a sand-blocking wall, a second air duct, a second air outlet, and a second fan. The sand-blocking wall is installed on both sides of the railway track. The second air duct is buried on the top of the sand-blocking wall, and multiple second air outlets are evenly distributed on the second air duct. The second air duct is connected to the air outlet of the second fan. The sand-blocking wall is formed by splicing multiple wall blocks. The top of each wall block includes at least one inclined surface with an installation groove. The second air duct is buried in the installation groove. A pre-embedded part is provided at the bottom of each wall block, and connecting parts are provided on both sides of each wall block. Adjacent wall blocks are connected through these connecting parts. A sand-proof net is installed on the side of the wall facing away from the railway track. This railway track sand blowing system can effectively reduce or prevent windblown sand from both sides of the railway track from falling into the area of ​​the railway track and the inside of the rails, thus slowing down the rate of sand accumulation on the rails.

Description

Technical Field

[0001] This utility model relates to the field of railway track maintenance technology, and in particular to a railway track sand blowing system. Background Technology

[0002] For railways in sandy areas, sand carried by strong winds accumulates on the tracks, potentially burying or even covering the train wheels and rails. The sand on the tracks accelerates damage and affects train stability, posing potential risks to trains. Furthermore, with the opening of high-speed rail extensions, increased railway transport frequency and speeds have made the long-term need for effective sand control extremely urgent.

[0003] The main method of removing sand from railway tracks at present is to remove sand manually or mechanically on a regular basis after sand has accumulated on the tracks. Although this method can effectively remove sand from the tracks and surrounding areas and ensure the safe operation of trains, it can only be carried out when no trains are running. Moreover, sand will accumulate on the tracks again soon after the sand is removed. This method has disadvantages such as short maintenance cycle, high maintenance cost, and easy occurrence of sudden accidents, making it difficult to adapt to the current railway transportation frequency in sandy areas.

[0004] The previously filed Chinese utility model patent with publication number CN218059733U, entitled "A railway track sand blowing system", disclosed a sand blowing system for laying on the track. However, due to the strong winds and sandstorms in desert areas, the effect of blowing sand only on the track is relatively limited. Therefore, this application improves the railway track sand blowing system based on this. Utility Model Content

[0005] The present invention aims to provide a railway track sand blowing system to improve the existing railway track sand blowing system, reduce or prevent sand particles from falling on the top and inside of the rails, and slow down the rate of sand accumulation on the rails.

[0006] To achieve the above objectives, the present invention provides a railway track sand blowing system, comprising: a sand-blocking wall, a second air duct, a second air outlet, and a second fan. The sand-blocking wall is installed on both sides of the railway track, the second air duct is embedded in the sand-blocking wall, and multiple second air outlets are evenly opened on the second air duct. The second air duct is connected to the air outlet end of the second fan.

[0007] In a preferred embodiment of this utility model, the sand-blocking wall is made of multiple wall blocks connected to each other. Each wall block includes a wall body, a pre-embedded part, and a connecting part. The wall body has a pre-embedded part at its bottom and the connecting parts on both sides. Adjacent wall bodies are connected through the connecting parts.

[0008] In a preferred embodiment of this utility model, the pre-embedded part is provided with a counterweight.

[0009] In a preferred embodiment of this utility model, the top of the wall facing away from the railway track is provided with at least one inclined surface, and the second air duct is embedded in the inclined surface.

[0010] In a preferred embodiment of this utility model, the top of the wall facing the railway track has at least one inclined surface.

[0011] In a preferred embodiment of the present invention, the wall further includes a mounting groove, which is formed on the inclined surface of the wall, and the second air duct is embedded in the mounting groove.

[0012] In a preferred embodiment of the present invention, the wall further includes a sand-proof net, which is detachably installed on the side of the wall facing away from the railway track.

[0013] In a preferred embodiment of the present invention, the railway track sand blowing system further includes a first air duct, a first air outlet, and a first fan. The first air duct is buried inside the rail of the railway track and located below the sleepers of the railway track. Multiple first air outlets are opened on the first air duct, and the first air duct is connected to the air outlet end of the first fan.

[0014] In a preferred embodiment of the present invention, the inner walls of the first air duct and the second air duct are provided with a plurality of movable baffles, which are disposed at the first air outlet and the second air outlet.

[0015] In a preferred embodiment of this utility model, a plurality of grooves are formed on the side of the wall facing the railway track, and the first fan and the second fan are placed in the grooves.

[0016] This utility model provides a railway track sand blowing system with a simple structure and convenient implementation. The sand-blocking wall, combined with the second air duct and the second air outlet, can effectively reduce or prevent sand from falling onto the railway track from both sides. The first air duct and the second air outlet on the inner side of the railway track then blow the sand from the adjacent inner side of the rails onto the rails, thereby reducing or preventing sand particles from falling on the top and inner sides of the rails, achieving the effect of slowing down the rate of sand accumulation on the rails, reducing the frequency of manual use of sand removal vehicles, and lowering the risk of safety accidents. Moreover, the railway track sand blowing system can be used normally when trains are passing on the railway track, without affecting train operation.

[0017] To make the above-mentioned features and advantages of the utility model more apparent and understandable, specific embodiments are described below, and detailed descriptions are provided in conjunction with the accompanying drawings. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the railway track sand blowing system of this utility model.

[0019] Figure 2 This is a schematic diagram of the movable baffle of this utility model.

[0020] Figure 3 This is a top view of the sand retaining wall of this utility model.

[0021] Figure 4 This is a schematic diagram of the wall block structure of this utility model.

[0022] Figure 5 This is a rear view of the wall block of this utility model.

[0023] 1-Railway track; 11-Steel rail; 12-Sleeper; 2-Sand blowing system; 21-First air duct; 22-First air outlet; 23-First fan; 24-Sand retaining wall; 241-Wall block; 2411-Wall body; 2412-Embedded part; 2413-Connecting part; 2414-Installation groove; 2415-Sandproof net; 2416-Groove; 25-Second air duct; 26-Second air outlet; 27-Second fan; 28-Moving baffle.

[0024] In the accompanying drawings, similar reference numerals refer to the same elements. Detailed Implementation

[0025] To make the objectives and technical solutions of the present utility model embodiments clearer, the following will be described in conjunction with the accompanying drawings of the present utility model embodiments. Figure 1 - Appendix Figure 5 The technical solutions of the embodiments of this utility model are clearly and completely described herein. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the described embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0026] like Figure 1 As shown, the railway track 1 includes rails 11 and sleepers 12, with multiple sleepers 12 fixed at equal intervals on two parallel rails 11. Since the railway track 1 is located in a desert region, sand particles carried by strong winds accumulate on the rails 11 and sleepers 12, damaging the structure of the railway track 1 and affecting the safe operation of trains.

[0027] like Figure 1As shown, the railway track sand blowing system 2 includes a first air duct 21, a first air outlet 22, a first fan 23, a sand-blocking wall 24, a second air duct 25, a second air outlet 26, and a second fan 27. Multiple first air outlets 22 are provided on the first air duct 21. The first air duct 21 is connected to the air outlet end of the first fan 23, and is used to blow sand from above and inside the rail 11 to reduce or prevent sand particles from falling onto and inside the rail 11.

[0028] Specifically, the first air duct 21 is buried inside the rail 11 and located below the sleeper 12. Multiple first air ducts 21 may be provided on each side of the rail 11.

[0029] Specifically, at least two first air outlets 22 are provided between two adjacent sleepers 12.

[0030] like Figure 1 As shown, two sand-blocking walls 24 are respectively set on both sides of the railway track 1. At least one second air duct 25 is buried on the top of the sand-blocking wall 24. Multiple second air outlets 26 are evenly opened on the second air duct 25. The second air duct 25 is connected to the air outlet of the second fan 27 to blow sand particles above both sides of the railway track 1, reducing the amount of sand particles that fall on the rail 11 and the sleeper 12 after crossing the sand-blocking wall 24.

[0031] The first fan 23 and the second fan 27 can be installed in the sand retaining wall 24 or in other places that do not affect the railway track 1. The first fan 23 and the second fan 27 are powered by the power system along the railway line to drive the first fan 23 and the second fan 27 to work. The first fan 23 and the second fan 27 deliver air to the first air duct 21 and the second air duct 25 respectively through the air outlet. The delivered air is blown out through the first air outlet 22 and the second air outlet 26.

[0032] Specifically, the first air outlet 22 is preferably opened at a 45-degree angle upward on the side of the first air duct 21 facing the rail 11, effectively blowing sand near the inner side of the rail 11 to the outer side of the rail 11, thereby reducing or preventing sand particles from falling on the top and inner side of the rail 11, and thus slowing down the rate of sand accumulation on the railway track 1. The second air outlet 26 is opened on the side of the second air duct 25 facing away from the rail, blowing away sand near the top of the sand-blocking wall 24, thereby reducing or preventing sand particles from passing over the sand-blocking wall 24.

[0033] Furthermore, the number and spacing of the first air outlet 22 and the second air outlet 26 need to be determined based on the actual working conditions.

[0034] Specifically, the air outlet of the first fan 23 is connected to the first duct 21, and the air outlet of the second fan 27 is connected to the second duct 25. There can be multiple first fans 23 and one second fan 27. The air outlet of the first fan 23 is connected to one or more first ducts 21, and the air outlet of one second fan 27 is connected to one or more second ducts 25. The specific adjustments are made according to the actual working conditions. The model and air output performance of the first fan 23 and the second fan 27, such as air volume and air velocity, need to be selected according to the local wind and sand volume, sand particle diameter, etc., to ensure that the first air outlet 22 and the second air outlet 26 are positive pressure air outlets. The design of positive pressure air outlets can effectively prevent the first air outlet 22 and the second air outlet 26 from being blocked by sand particles.

[0035] like Figure 1 As shown, to avoid the high-temperature safety hazards caused by the continuous operation of the first fan 23 and the second fan 27, and to save electricity, the first fan 23 and the second fan 27 operate intermittently, that is, they are powered on and run for a period of time, then stopped for a period of time, and then restarted. When there are multiple first fans 23 and second fans 27, they can be operated alternately.

[0036] like Figure 2 As shown, furthermore, when the first fan 23 and the second fan 27 stop operating, sand particles will be blown into the first air duct 21 and the second air duct 25 by the wind through the first air outlet 22 and the second air outlet 26, posing a risk of blockage. Preferably, movable baffles 28 can also be provided on the inner walls of the first air duct 21 and the second air duct 25. The movable baffles 28 are located at the first air outlet 22 and the second air outlet 26, and are used to close the corresponding first air outlet 22 and second air outlet 26 when the first fan 23 and the second fan 27 stop operating. The movable baffles 28 can be a known structure that opens and closes in conjunction with the first fan 23 or the second fan 27. The movable baffles 28 can also be a flip-top structure, which opens when air is discharged and closes automatically due to gravity when closed.

[0037] Please combine Figures 3-4The sand-blocking wall 24 is constructed by connecting multiple wall blocks 241. Each wall block 241 includes a wall body 2411, a pre-embedded part 2412, a connecting part 2413, an installation groove 2414, and a sand-blocking net 2415. The pre-embedded part 2412 is located at the bottom of the wall body 2411, and the connecting part 2413 is located on both sides of the wall body 2411. At least one inclined surface is provided on the top of the side of the wall body 2411 facing away from the railway track 1, and at least one installation groove 2414 is formed on this inclined surface. The second air duct 25 is installed within the installation groove 2414. The sand-blocking net 2415 is detachably installed on the side of the wall body 2411 facing away from the railway track 1. The sand-blocking net 2415 is used to reduce wind speed and intercept sand particles. The sand-blocking net 2415 can be installed using wire, iron rings, or other known installation methods.

[0038] Specifically, at least one inclined surface may be provided on the top of the wall 2411 facing the railway track 1, but the wind force blown out by the second air duct 25 installed on the inclined surface needs to be sufficient to make the sand grains fall on the outside of the railway track 1.

[0039] Furthermore, the inclination angle of the top inclined surface of the wall 2411 is preferably 15° to 45°.

[0040] Specifically, the pre-embedded part 2412 is preferably sloped to facilitate the sliding of deposited sand particles and to facilitate the removal of deposited sand particles by a sand removal vehicle. The inclination angle is preferably 45°. The pre-embedded part 2412 is equipped with a counterweight to lower the center of gravity of the wall block 241, prevent the wall block 241 from tipping over in strong winds, and facilitate the installation of the wall block 241.

[0041] Specifically, the connecting part 2413 can be a male and female tenon or other connection method that facilitates connection and fixation, connecting adjacent wall blocks 241 to form the sand retaining wall 24.

[0042] like Figure 5 As shown, to facilitate the installation of the first fan 23 and the second fan 27, the wall block 241 may also include a groove 2416. A plurality of the grooves 2416 are formed on the side of the wall 2411 facing the railway track 1, and the first fan 23 and the second fan 27 are placed in the grooves 2416.

[0043] In summary, the railway track sand blowing system provided by this utility model has a simple structure and is easy to implement. The sand-blocking wall, combined with the second air duct and the second air outlet, can effectively reduce or prevent sand from falling into the railway track area from both sides. The first air duct and the second air outlet on the inner side of the railway track then blow the sand from the inner side of the adjacent rails onto the rails, thereby reducing or preventing sand particles from falling on the top and inner sides of the rails, achieving the effect of slowing down the rate of sand accumulation on the rails, reducing the frequency of manual use of sand removal vehicles, and lowering the risk of safety accidents. Moreover, the railway track sand blowing system can be used normally when a train is passing on the railway track, without affecting train operation.

[0044] Although the present invention has been disclosed above by way of embodiments, it is not intended to limit the present invention. Anyone skilled in the art can make some modifications and refinements without departing from the spirit and scope of the present invention. Therefore, the scope of protection of the present invention shall be determined by the appended claims.

Claims

1. A railway track sand-blasting system, characterized in that, include: The system includes a sand-blocking wall, a second air duct, a second air outlet, and a second fan. The sand-blocking wall is installed on both sides of the railway track. The second air duct is buried in the sand-blocking wall. Multiple second air outlets are evenly opened on the second air duct. The second air duct is connected to the air outlet end of the second fan.

2. A railway track sand blowing system as claimed in claim 1, wherein said sand retaining wall is made of a plurality of wall blocks connected to each other, characterized in that, The wall block includes a wall body, an embedded part, and a connecting part. The embedded part is provided at the bottom of the wall body, and the connecting part is provided on both sides of the wall body. Adjacent walls are connected through the connecting parts.

3. A railway track sand blowing system as claimed in claim 2, wherein, The embedded part is equipped with a counterweight.

4. A railway track sand-blasting system as claimed in claim 2, wherein, The top of the wall facing away from the railway track has at least one inclined surface, and the second air duct is buried on the inclined surface.

5. A railway track sand blowing system as claimed in claim 4, wherein, The top of the wall facing the railway track has at least one inclined surface.

6. A railway track sand blowing system as claimed in claim 4, wherein, The wall also includes a mounting groove, which is formed on the inclined surface of the wall, and the second air duct is embedded in the mounting groove.

7. A railway track sand blowing system as described in claim 6, characterized in that, The wall also includes a sand-proof net, which is detachably installed on the side of the wall facing away from the railway track.

8. A railway track sand blowing system as described in any one of claims 1-7, characterized in that, The railway track sand blowing system also includes a first air duct, a first air outlet, and a first fan. The first air duct is buried inside the rail of the railway track and located below the sleepers of the railway track. Multiple first air outlets are opened on the first air duct, and the first air duct is connected to the air outlet end of the first fan.

9. A railway track sand blowing system as described in claim 8, characterized in that, The inner walls of the first and second air ducts are provided with multiple movable baffles, which are located at the first and second air outlets.

10. A railway track sand blowing system as described in claim 8, characterized in that, The wall has multiple grooves on the side facing the railway track, and the first fan and the second fan are placed in the grooves.

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