Dedusting and filtering system for pilot tunnel

Abstract

The invention relates to a pilot tunnel dedusting and filtering system, and belongs to the technical field of tunnel dedusting. Comprising first dust removal filtering assemblies, second dust removal filtering assemblies and a swing assembly, the first dust removal filtering assemblies are vertically arranged and tightly attached to the inner wall of the pilot tunnel and fixed, and the second dust removal filtering assemblies are transversely arranged in the pilot tunnel in a staggered and alternate mode and installed in the pilot tunnel through the swing assembly; the second dust removal filtering assembly is located between the first dust removal filtering assemblies; the first dust removal filtering assembly and the second dust removal filtering assembly are used for filtering dust in the pilot tunnel, and the swing assembly is used for driving the second dust removal filtering assembly to swing and reset along with wind under the wind condition. According to the pilot tunnel dedusting and filtering system, the influence of wind blowing on pilot tunnel dedusting can be effectively reduced, the service life of the dedusting and filtering assembly is prolonged, and the dedusting and filtering effect is good.

Description

Technical Field

[0001] The invention relates to a guide tunnel dust removal and filtering system, belonging to the technical field of tunnel dust removal. Background Art

[0002] The pilot tunnel is used by workers to avoid passing vehicles when conducting tunnel maintenance. Both ends of the pilot tunnel are connected to the tunnel, and the tunnels at both ends are usually designed in a two-way manner. The pilot tunnel used in the heavy-load train tunnel needs to spray gravel on the rails during the passage of the heavy-load train to increase the friction between the wheels of the heavy-load train and the rails to ensure the safe operation of the heavy-load train. However, during the passage of the heavy-load train, a large amount of dust particles will be raised, which need to be handled. At the same time, the air circulation speed is accelerated, and strong winds and a large amount of dust particles are injected into both ends of the pilot tunnel, so it needs to be handled.

[0003] Dust removal in pilot tunnels and tunnels usually uses tunnel dust removal vehicles, which are highly flexible and have good dust removal effects. However, tunnel dust removal vehicles have to occupy the rails, which affects the passing performance of heavy-loaded trains. In addition, dust removal fans can be installed at the tunnel entrance to effectively remove dust particles in the tunnel. However, this method is only suitable for short-distance tunnels and not for long-distance tunnels.

[0004] The Chinese utility model patent with the publication number CN204941595U discloses a tunnel dust collector that is easy to replace the filter plate, including a box body, a filter plate is arranged in the box body, a clean air chamber and a dusty air chamber are arranged in the box body, and a partition is arranged between the clean air chamber and the dusty air chamber; the lower part of the box body is provided with a filter plate and a filter plate fixing mechanism, the filter plate fixing mechanism includes a front fixing mechanism and a rear fixing mechanism, and a blowing pipe is installed on the outer side of the lower end of the front fixing mechanism. The box body of the above-mentioned tunnel dust collector is divided into a clean air chamber and a dusty air chamber by a partition, wherein the air inlet chamber (i.e., the dusty air chamber) and the air outlet chamber (i.e., the clean air chamber) are connected by the filter plate, and although the filter plate is installed in the dusty air chamber, the filter plate is disassembled and assembled in the clean air chamber, thereby avoiding secondary dust pollution in the dusty air duct. The front end of the filter plate is fixed by a card plate and bolts, and is easy to disassemble and assemble.

[0005] The above-mentioned tunnel dust collector can realize dust removal and filtration in the tunnel, but its coverage of the tunnel is limited, so its dust removal effect is poor. At the same time, the filter needs to be replaced constantly, and the operation is relatively cumbersome, especially for the lack of resistance to strong winds, and does not have the dust removal ability under strong wind conditions. Summary of the invention

[0006] The technical problem to be solved by the present invention is to provide a guide hole dust removal and filtering system, which effectively reduces the influence of wind blowing on guide hole dust removal, increases the service life of the dust removal and filtering components, and has a good dust removal and filtering effect.

[0007] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0008] A guide hole dust removal and filtering system comprises a first dust removal and filtering assembly, a second dust removal and filtering assembly and a swing assembly, wherein the first dust removal and filtering assembly is vertically arranged and closely attached to the inner wall of the guide hole and fixed, the second dust removal and filtering assembly is transversely staggered and alternately arranged in the guide hole and installed in the guide hole through the swing assembly, and the second dust removal and filtering assembly is located between the first dust removal and filtering assemblies; the first dust removal and filtering assembly and the second dust removal and filtering assembly are used to filter dust in the guide hole, and the swing assembly is used to drive the second dust removal and filtering assembly to swing and reset with the wind according to the wind conditions.

[0009] Furthermore, the first dust removal and filtering components are arranged vertically at the two end ports of the guide hole.

[0010] Furthermore, the first dust removal filter assembly and the second dust removal filter assembly have the same structure.

[0011] Furthermore, the second dust removal and filtering assembly includes a frame, a fixed net and a dust removal box, the fixed net is installed on the frame, and the dust removal box is placed in the frame.

[0012] Furthermore, the shape of the frame is set to correspond to the shape of the guide hole.

[0013] Furthermore, the swing assembly includes a mounting seat, a torsion spring, a connecting rod and a pulley, the mounting seat is installed on the left and right sides of the frame, the mounting seat and the connecting rod are hinged, a pulley is installed at the end of the connecting rod, one end of the torsion spring is installed on the frame, and the other end of the torsion spring is installed on the connecting rod.

[0014] Furthermore, the mounting seat is provided with a limit block, and the limit block is used to limit the angle between the connecting rod and the mounting seat.

[0015] Furthermore, a buffer column is provided on the connecting rod.

[0016] Furthermore, when the second dust removal and filtering assembly is horizontally stationary, the pulley is in contact with the inner wall of the guide hole.

[0017] Furthermore, the swing assembly includes a stopper, which is installed in the guide hole and is used to limit the sliding of the pulley.

[0018] Furthermore, the swing assembly also includes a fixed part and a movable part, the fixed part and the movable part are slidably connected, the movable part is fixedly connected to the front end surface of the frame, and the fixed part is installed on the inner top and inner bottom of the guide hole.

[0019] Beneficial effects of the present invention:

[0020] In the guide tunnel dust removal and filtering system of the present invention, the first dust removal and filtering assembly and the second dust removal and filtering assembly work together to realize dust removal of the guide tunnel. The first dust removal and filtering assembly is vertically arranged at the two end ports of the guide tunnel, and can adapt to the two end port positions of the guide tunnel with the largest wind force. It is firmly placed and is less affected by wind. The second dust removal and filtering assembly is transversely staggered and alternately arranged inside the guide tunnel. The transversely staggered and alternately arranged manner can effectively remove dust from the guide tunnel. The swing assembly is used to drive the second dust removal and filtering assembly to swing left and right with the wind. When swinging, the second dust removal and filtering assembly faces the wind directly from the front, which can effectively reduce the impact of wind on the second dust removal and filtering assembly, thereby realizing maximum dust removal and filtration of the guide tunnel.

[0021] The guide tunnel dust removal and filtering system of the present invention can effectively reduce the influence of wind blowing on the guide tunnel dust removal, increase the service life of the dust removal and filtering components, and has a good dust removal and filtering effect.

[0022] The present invention is further described below through the accompanying drawings and specific embodiments, but it is not intended to limit the protection scope of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a schematic structural diagram of a guide tunnel dust removal and filtration system according to Embodiment 1 of the present invention;

[0024] Figure 2 It is a structural schematic diagram of the second dust removal and filtering assembly in the guide tunnel dust removal and filtering system of Example 1 of the present invention;

[0025] Figure 3 It is a structural schematic diagram of the connection between the second dust removal and filtering component and the swing component in the guide hole dust removal and filtering system of Example 1 of the present invention.

[0026] Description of main reference numerals:

[0027] 1First dust removal filter assembly 2Second dust removal filter assembly

[0028] 3 Swing assembly 31 mounting seat

[0029] 311 limit block 32 torsion spring

[0030] 33 connecting rod 331 buffer column

[0031] 34 pulley 35 stopper

[0032] 36 fixed part 37 movable part

[0033] 4 frames 5 fixed nets

[0034] 6Dust removal box7Guide hole DETAILED DESCRIPTION

[0035] The exemplary embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. Although the exemplary embodiments of the present invention are shown in the accompanying drawings, it should be understood that the present invention can be implemented in various forms and should not be limited by the embodiments described herein. On the contrary, these embodiments are provided in order to enable a more thorough understanding of the present invention and to fully convey the scope of the present invention to those skilled in the art.

[0036] It should be understood that the terms used herein are only for the purpose of describing specific example embodiments and are not intended to be limiting. Unless the context clearly indicates otherwise, the singular forms "one", "an" and "said" as used herein may also be meant to include plural forms. The terms "include", "comprise", "contain", and "have" are inclusive and therefore specify the existence of stated features, steps, operations, elements and / or parts, but do not exclude the existence or addition of one or more other features, steps, operations, elements, parts and / or combinations thereof. The method steps, processes, and operations described herein are not interpreted as necessarily requiring them to be performed in the specific order described or illustrated, unless the execution order is clearly indicated. It should also be understood that additional or alternative steps may be used.

[0037] Although the terms first, second, third, etc. can be used in the text to describe multiple elements, components, regions, layers and / or sections, these elements, components, regions, layers and / or sections should not be limited by these terms. These terms can only be used to distinguish an element, component, region, layer or section from another region, layer or section. Unless the context clearly indicates, terms such as "first", "second" and other numerical terms do not imply order or sequence when used in the text. Therefore, the first element, component, region, layer or section discussed below can be referred to as the second element, component, region, layer or section without departing from the teaching of the example embodiments.

[0038] For ease of description, spatial relative terms may be used in the text to describe the relationship of one element or feature relative to another element or feature as shown in the figure, such as "inside", "outside", "inner side", "outer side", "below", "below", "above", "above", etc. Such spatial relative terms include different orientations of the device in use or operation in addition to the orientation depicted in the figure. For example, if the device in the figure is turned over, the element described as "below other elements or features" or "below other elements or features" will then be oriented as "above other elements or features" or "above other elements or features". Therefore, the example term "below..." can include both upper and lower orientations. The device can be oriented otherwise (rotated 90 degrees or in other directions) and the spatial relative descriptors used in the text are interpreted accordingly.

[0039] Unless otherwise specified, the components described in the following embodiments of the present invention are all conventional components available on the market in the technical field, and the connections between the components are all conventional connections.

[0040] Example 1

[0041] like Figure 1 As shown, it is a schematic diagram of the structure of the guide hole dust removal and filtration system of Example 1 of the present invention; Figure 2 As shown, it is a structural schematic diagram of the second dust removal and filtering assembly in the guide hole dust removal and filtering system of Example 1 of the present invention; Figure 3 , which is a schematic structural diagram of the connection between the second dust removal and filtering assembly and the swing assembly in the guide hole dust removal and filtering system of Example 1 of the present invention; wherein 1 is the first dust removal and filtering assembly, 2 is the second dust removal and filtering assembly, 3 is the swing assembly, 31 is the mounting seat, 311 is the limit block, 32 is the torsion spring, 33 is the connecting rod, 331 is the buffer column, 34 is the pulley, 35 is the stopper, 36 is the fixed part, 37 is the movable part, 4 is the frame, 5 is the fixed net, 6 is the dust removal box, and 7 is the guide hole;

[0042] The guide hole dust removal and filtering system of embodiment 1 of the present invention comprises a first dust removal and filtering assembly 1, a second dust removal and filtering assembly 2 and a swing assembly 3, wherein the first dust removal and filtering assembly 1 is arranged vertically and closely disposed on the inner wall of the guide hole 7 and fixed, the second dust removal and filtering assembly 2 is alternately disposed in the guide hole 7 in a staggered manner horizontally, and installed in the guide hole 7 through the swing assembly 3, and the second dust removal and filtering assembly 2 is located between the first dust removal and filtering assembly 1; the first dust removal and filtering assembly 1 and the second dust removal and filtering assembly 2 are used to filter dust in the guide hole 7, and the swing assembly 3 is used to drive the second dust removal and filtering assembly 2 to swing and reset with the wind according to the wind conditions;

[0043] In the present embodiment 1, the first dust filter assembly 1 and the second dust filter assembly 2 have the same structure. In actual use, the first dust filter assembly 1 and the second dust filter assembly 2 are both used to filter the guide hole 7 for dust removal. They are placed in different positions according to actual conditions. The wind at the guide hole opening is strong. If a horizontal arrangement is adopted, it is very easy to be damaged by the strong wind. Therefore, the first dust filter assembly 1 closest to the guide hole opening is placed against the wall. The advantages are that it is placed firmly and is less affected by the wind. The wind speed in the guide hole 7 is relatively reduced. If the vertical arrangement is continued, there will be a disadvantage of poor dust removal and filtering effect. Therefore, the second dust filter assembly 2 is arranged in a staggered and alternating manner in the guide hole 7, and the dust removal and filtering effect is better.

[0044] In the present embodiment 1, the second dust removal filter assembly 2 and the first dust removal filter assembly 1 include a frame 4, a fixed net 5 and a dust removal box 6, the fixed net 5 is installed on the frame 4, and the dust removal box 6 is placed in the frame 4; in actual use, the frame 4 becomes a fully enclosed structure after the fixed net 5 is installed, the frame 4 is used to install the connected devices and place the dust removal box 6, the fixed net 5 is used to fix the dust removal box 6 placed on the frame 4, the dust removal box 6 is used to provide dust removal and filtering support for the guide hole 7, the dust removal box 6 is the prior art, the dust removal box 6 can adopt a dust removal box 6 with a particle catcher, and the dust removal box 6 can also adopt a dust removal box 6 with a built-in dust removal filter screen, so the specific structure of the dust removal box 6 is not repeated;

[0045] In the present embodiment 1, the shape of the frame corresponds to the shape of the guide hole; in actual use, the shape of the frame 4 corresponds to the shape of the guide hole 7, the upper half of the guide hole 7 is mostly semicircular, and the lower half of the guide hole 7 is mostly rectangular. The frame 4 corresponding to the guide hole 7 has an upper half that is a quarter-circle sector and a lower half that is rectangular, which ensures that the frame 4 can be installed against the wall while increasing its dust removal and filtration area, and can improve the dust removal and filtration effects of the first dust removal and filtration assembly 1 and the second dust removal and filtration assembly 2;

[0046] The swing assembly 3 includes a mounting seat 31, a torsion spring 32, a connecting rod 33 and a pulley 34. The mounting seat 31 is mounted on the left and right sides of the frame 4. The mounting seat 31 and the connecting rod 33 are hinged. A pulley 34 is installed at the end of the connecting rod 33. One end of the torsion spring 32 is mounted on the frame 4, and the other end of the torsion spring 32 is mounted on the connecting rod 33. In actual use, the mounting seat 31 is used to fix the connecting rod 33, the connecting rod 33 is used to install the pulley 34, the pulley 34 is used to slide on the inner wall of the guide hole 7, and the torsion spring 32 is used to pull the connecting rod 33 to reset. The number of swing assemblies 3 can be Two sets are respectively installed on the frame 4. When the second dust removal filter assembly 2 is blown and swung by the wind, the pulley 34 at one end of the frame 4 slides on the inner wall of the guide hole 7, and the pulley 34 at the other end of the frame 4 leaves the inner wall of the guide hole 7 and hangs in the air. When the pulley 34 slides on the inner wall of the guide hole 7, the angle between the connecting rod 33 and the mounting seat 31 increases, and at the same time, the torsion spring 32 is stretched to accumulate elastic potential energy. When the wind blowing effect on the second dust removal filter assembly 2 is reduced, the torsion spring 32 pulls the connecting rod 33 to reset. At this time, the pulleys 34 installed at both ends of the frame 4 are in contact with the inner wall of the guide hole 7, and the torsion spring 32 returns to the initial state.

[0047] The mounting seat 31 is provided with a limiting block 311, and the limiting block 311 is used to limit the angle between the connecting rod 33 and the mounting seat 31; in actual use, in order to ensure that the swing assembly 3 can function when the second dust removal filter assembly 2 is blown by the wind and swings, it is necessary to ensure the normal operation of the connecting rod 33 and the pulley 34 installed on the connecting rod 33, so there is a minimum angle between the connecting rod 33 and the mounting seat 31, and at the minimum angle position, the pulley 34 can still slide on the inner wall of the guide hole 7, ensuring the normal operation of the swing assembly 3;

[0048] The connecting rod 33 is provided with a buffer column 331. In actual use, since the second dust filter assembly 2 is subjected to a large force when it is swung by wind, the buffer column 331 can provide a buffer for the connecting rod 33 to prevent the connecting rod 33 from being directly broken. By providing the buffer column 331, the service life of the connecting rod 33 can be effectively improved.

[0049] In the present embodiment 1, when the second dust removal filter assembly 2 is horizontally stationary, the pulley 34 is in contact with the inner wall of the guide hole 7; in actual use, when the second dust removal filter assembly 2 is horizontally stationary, only when the pulley 34 is in contact with the inner wall of the guide hole 7, the swing assembly 3 can play its role. Since there are two groups of pulleys 34, both groups of pulleys 34 are in contact with the inner wall of the guide hole 7, the second dust removal filter assembly 2 can be swung in multiple directions and angles;

[0050] The swing assembly 3 further includes a stopper 35, which is mounted on the inner wall of the guide hole 7 and is used to limit the sliding of the pulley 34. In actual use, the stopper 35 is provided to limit the pulley 34. The position of the stopper 35 is the maximum value of the left and right swing of the second dust removal and filtering assembly 2, which can prevent the pulley 34 from sliding too far and directly damaging the torsion spring 32, thereby causing the swing assembly 3 to fail.

[0051] The swing assembly 3 also includes a fixed part 36 and a movable part 37, and the fixed part 36 and the movable part 37 are slidably connected to each other. The movable part 37 is fixedly connected to the front end surface of the frame 4, and the fixed part 36 is installed on the inner top and inner bottom of the guide hole 7; in actual use, the fixed part 36 and the movable part 37 are used to install the second dust removal and filtering assembly 2 on the guide hole 7, and the fixed part 36 is installed on the guide hole 7. Through the sliding connection between the fixed part 36 and the movable part 37, the movable part 37 can freely turn left and right relative to the guide hole 7, thereby realizing the swing of the second dust removal and filtering assembly 2.

[0052] All technical features in this embodiment can be freely combined according to actual needs. The above embodiments are only used to illustrate the technical solution of the present invention rather than to limit it. Although the present invention is described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solution of the present invention can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution of the present invention, which should be covered by the scope of the claims of the present invention. The technology, shape, and structural parts not described in detail in the present invention are all well-known technologies.

[0053] The above embodiments are preferred implementation schemes of the present invention. In addition, other implementation schemes are also included. Any obvious replacement without departing from the concept of the present technical scheme is within the protection scope of the present invention.

Claims

1. A guide tunnel dust removal and filtration system, characterized in that: The invention comprises a first dust removal filter assembly (1), a second dust removal filter assembly (2) and a swing assembly (3); the first dust removal filter assembly (1) is arranged vertically, closely attached to the inner wall of a guide hole (7) and fixed; the second dust removal filter assembly (2) is arranged transversely and alternately in a staggered manner in the guide hole (7) and installed in the guide hole (7) via the swing assembly (3); the second dust removal filter assembly (2) is located between the first dust removal filter assembly (1).

2. The guide hole dust removal and filtration system according to claim 1, characterized in that: The first dust removal filter assembly (1) and the second dust removal filter assembly (2) have the same structure.

3. The guide hole dust removal and filtration system according to claim 1, characterized in that: The second dust removal and filtering assembly (2) comprises a frame (4), a fixed net (5) and a dust removal box (6); the fixed net (5) is mounted on the frame (4), and the dust removal box (6) is placed inside the frame (4).

4. The guide hole dust removal and filtration system according to claim 3, characterized in that: The shape of the frame (4) is arranged to correspond to the shape of the guide hole (7).

5. The guide tunnel dust removal and filtration system according to claim 3, characterized in that: The swing assembly (3) comprises a mounting seat (31), a torsion spring (32), a connecting rod (33) and a pulley (34); the mounting seat (31) is mounted on the left and right sides of the frame (4); the mounting seat (31) and the connecting rod (33) are hinged; a pulley (34) is mounted at the end of the connecting rod (33); one end of the torsion spring (32) is mounted on the frame (4); and the other end of the torsion spring (32) is mounted on the connecting rod (33).

6. The guide hole dust removal and filtration system according to claim 5, characterized in that: The mounting seat (31) is provided with a limiting block (311).

7. The guide tunnel dust removal and filtration system according to claim 6, characterized in that: A buffer column (331) is provided on the connecting rod (33).

8. The guide hole dust removal and filtration system according to claim 5, characterized in that: When the second dust removal and filtering assembly (2) is horizontally stationary, the pulley (34) is in contact with the inner wall of the guide hole (7).

9. The guide hole dust removal and filtration system according to claim 7, characterized in that: The swing assembly (3) further comprises a stopper (35), wherein the stopper (35) is mounted on the guide hole (7).

10. The guide hole dust removal and filtration system according to claim 8, characterized in that: The swing assembly (3) further comprises a fixed part (36) and a movable part (37), wherein the fixed part (36) and the movable part (37) are slidably connected, the movable part (37) is fixedly connected to the front end surface of the frame (4), and the fixed part (36) is mounted on the inner top and inner bottom of the guide hole (7).

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