Urban pipeline facility engineering dust removal equipment

Abstract

The application discloses a kind of urban pipeline facilities engineering dust removal equipment, including two half-cylinder cover, one cover side wall is provided with suction port, the suction port is connected to suction fan;Each cover front end is hinged with multiple pieces of conforming blade, adjacent conforming blade is staggered and conforms, each conforming blade is hinged with conforming connecting rod, the outer wall of the cover is slidably provided with the first sliding ring of half circular ring type, the conforming connecting rod is hinged into corresponding first sliding ring;The inner wall of the cover is distributed with multiple pieces of guide blade, compared with prior art, the ring is through annular dust absorption cavity, self-adapting conforming blade, the technology of spiral airflow guide, solves the problem of low efficiency, cleaning is not thorough for traditional dust absorption mode.

Description

Technical Field

[0001] This invention relates to the field of dust removal technology in tunnels, specifically a dust removal device for urban pipeline infrastructure projects. Background Technology

[0002] With the increasing demand for urban underground space development, the construction and maintenance of pipelines (such as gas, water supply, drainage, and power and communication pipelines) within tunnels are becoming more frequent. However, the enclosed space, poor ventilation, and limited dust dispersion characteristics of tunnels make dust control a core challenge restricting construction efficiency and safety.

[0003] The narrow, enclosed space of tunnels makes traditional dust removal technologies difficult to apply. Currently, urban pipeline projects use fixed or handheld exhaust fans installed on one side of the pipeline to draw dust into dust collection bags or filters using negative pressure. Some equipment uses semi-enclosed dust hoods (such as single-sided open boxes) to cover localized areas of the pipeline to enhance suction. However, unidirectional suction only removes localized dust; dust tends to remain on the leeward side of the pipeline, at joints, or in recessed areas, resulting in incomplete cleaning. Negative pressure decreases with distance, with strong suction at near-ends and weaker suction at far-ends, making it difficult to maintain a uniform suction effect. Fixed dust hoods cannot accommodate pipes of different diameters, requiring frequent head changes or equipment adjustments, leading to low efficiency. Their semi-enclosed structure also creates gaps between the hood and the pipeline, allowing dust to leak into the tunnel. Furthermore, tracks or supports within the tunnel restrict equipment movement, making it difficult to adapt to continuous operations across multiple locations and pipe diameters.

[0004] Therefore, it is necessary to provide a dust removal device for urban pipeline infrastructure projects to solve the problems mentioned in the background art. Summary of the Invention

[0005] To achieve the above objectives, the present invention provides the following technical solution: a dust removal device for urban pipeline facilities, comprising two semi-cylindrical covers, one of which has an exhaust port on its side wall, the exhaust port being connected to an exhaust fan;

[0006] Each cover has multiple fitting blades hinged to its front end. Adjacent fitting blades are staggered vertically and fit together. Each of the fitting blades is hinged to a fitting link. A semi-circular first slip ring is slidably provided on the outer wall of the cover. The fitting link is hinged to the corresponding first slip ring.

[0007] The inner wall of the casing is covered with multiple guide vanes.

[0008] Furthermore, the two sides of the two housings are respectively connected to the lifting guide rails.

[0009] Furthermore, the center of each guide blade is rotatably disposed inside the housing, and its axis of rotation extends through the outside of the housing and is fixed with a guide rod. The guide rod consists of a connecting rod with its two ends hinged to each other. A semi-circular second slip ring is slidably disposed on the outer wall of the housing, and the guide rod is hinged to the corresponding second slip ring.

[0010] Furthermore, an extension blade is slidably embedded below the guide blade.

[0011] Furthermore, an inner shaft is fixed at the center of the extended blade, and the inner shaft slides through to the upper end of the rotating shaft of the guide blade.

[0012] Furthermore, a ball cap is fixed to the upper end of the inner shaft, and a spring is provided between the ball cap and the guide link, the spring providing elastic force to make the ball cap slide upward;

[0013] The first slip ring has an inclined plate fixed to the side away from the connecting rod, and the ball cap is attached to the lower surface of the inclined plate.

[0014] Furthermore, multiple turns of threaded blades are distributed between the guide vanes and the exhaust port.

[0015] Furthermore, a sealing sleeve is fixed at the end of the cover away from the fitting blade, and the sealing sleeve is an inwardly contracting rubber sleeve.

[0016] Furthermore, a first telescopic cylinder is connected between the first slip ring and the corresponding cover.

[0017] Furthermore, a second telescopic cylinder is connected between the second slip ring and the corresponding cover.

[0018] Compared with the prior art, the beneficial effects of the present invention are:

[0019] In this invention, the first slip ring drives the bonding linkage mechanism, which causes multiple bonding blades to deflect synchronously. This allows for precise control of the distance between the blade tip and the pipe surface, adapting to pipes of different diameters, ensuring uniform negative pressure distribution, and preventing air leakage or insufficient suction.

[0020] In this invention, the guide vane has an adjustable tilt angle, which, together with the extension vane's telescopic function, forms a highly efficient spiral airflow, enhancing dust capture capability and reducing dust escape. The extension vane is linked to the inclined plate via the inner shaft. When the blade closes, the inclined plate pushes the ball cap to compress the spring, causing the extension vane to extend automatically, ensuring that the total height of the guide vane always matches the pipe diameter and maintaining the stability of the spiral airflow.

[0021] A threaded blade is installed between the exhaust port and the guide vane to force the airflow to diffuse in a circumferential direction, eliminate suction blind spots, and ensure 360° uniform dust collection on the duct surface. Attached Figure Description

[0022] Figure 1 A schematic diagram of a dust removal device for urban pipeline infrastructure projects;

[0023] Figure 2 This is a schematic diagram of the structure of the outer wall of the casing;

[0024] Figure 3 This is a schematic diagram of the structure of the inner wall of the casing;

[0025] Figure 4 This is an enlarged structural diagram of the guide link.

[0026] Figure 5 A schematic diagram of the cross-sectional structure at the junction of the blade and the guide blade;

[0027] In the diagram: 1. Cover; 2. Exhaust vent; 3. Exhaust fan; 4. Fitting blade; 41. Fitting connecting rod; 42. First slip ring; 43. First telescopic cylinder; 5. Guide blade; 51. Guide connecting rod; 52. Second slip ring; 53. Second telescopic cylinder; 54. Extension blade; 55. Inner shaft; 56. Spring; 57. Ball cap; 58. Inclined plate; 6. Lifting guide rail; 7. Sealing sleeve; 8. Threaded plate. Detailed implementation method.

[0028] Please see Figures 1-5 In this embodiment of the invention, a dust removal device for urban pipeline facilities includes two semi-cylindrical housings 1, one of which has an exhaust port 2 on its side wall, and the exhaust port 2 is connected to an exhaust fan 3.

[0029] Each cover 1 has multiple fitting blades 4 hinged to its front end. Adjacent fitting blades 4 are staggered vertically and fit together. Each fitting blade 4 is hinged to a fitting link 41. A semi-circular first slip ring 42 is slidably provided on the outer wall of the cover 1. The fitting link 41 is hinged to the corresponding first slip ring 42.

[0030] The inner wall of the casing 1 is distributed with multiple guide blades 5.

[0031] The two covers 1 can be closed and fitted onto the outer wall of the pipe. The exhaust fan 3 can generate negative pressure inside the cover 1 to perform dust suction. By sliding the first slip ring 42, the fitting connecting rod 41 can push the corresponding fitting blade 4, so that the fitting blade 4 and the pipes of different diameters maintain a suitable distance, thereby ensuring the suction power. The guide blade 5 can make the airflow spiral and evenly distributed.

[0032] In this embodiment, the two sides of the two covers 1 are respectively connected to the lifting guide rails 6.

[0033] In other words, the height of the two covers 1 can be quickly adjusted to match the height of the pipe through the lifting guide rail 6.

[0034] In this embodiment, the center of each guide blade 5 is rotatably disposed inside the cover 1, and its axis of rotation extends through the outside of the cover 1 and is fixed with a guide rod 51. The guide rod 51 is composed of a connecting rod with its two ends hinged to each other. A semi-circular second slip ring 52 is slidably disposed on the outer wall of the cover 1, and the guide rod 51 is hinged to the corresponding second slip ring 52.

[0035] In other words, by sliding the second slip ring 52, the guide rod 51 can be made to push the guide blade 5 to rotate, thereby adjusting the tilt angle of the guide blade 5 according to different suction forces.

[0036] In this embodiment, an extension blade 54 is slidably embedded below the guide blade 5.

[0037] By adjusting the extension length of the extension blade 54, the total height of the guide blade 5 and the extension blade 54 can be adapted to pipes of different diameters.

[0038] In this embodiment, an inner shaft 55 is fixed at the center of the extended blade 54, and the inner shaft 55 slides through to the upper end of the rotating shaft of the guide blade 5.

[0039] In this embodiment, a ball cap 57 is fixed at the upper end of the inner shaft 55, and a spring 56 is provided between the ball cap 57 and the guide rod 51. The spring 56 provides an elastic force to make the ball cap 57 slide upward.

[0040] The first slip ring 42 has an inclined plate 58 fixed on the side away from the connecting rod 41, and the ball cap 57 is attached to the lower surface of the inclined plate 58.

[0041] When the first slip ring 42 slides to different positions, the ball cap 57 also fits onto the inclined plate 58 at different heights. That is, the more the fitting blade 4 retracts inward, the more the extension blade 54 slides downward, so as to ensure that the total height of the guide blade 5 and the extension blade 54 adapts to pipes of different diameters as the fitting blade 4 adapts.

[0042] In this embodiment, multiple turns of threaded blades 8 are distributed between the guide blade 5 and the exhaust port 2.

[0043] The suction force generated by the exhaust port 2 can be distributed circumferentially within the two covers 1 under the action of the threaded plate 8, ensuring that the suction force on the pipe surface is balanced.

[0044] In this embodiment, a sealing sleeve 7 is fixed at the end of the cover 1 away from the fitting blade 4. The sealing sleeve 7 is an inwardly contracting rubber sleeve.

[0045] After the two covers 1 are placed on the outer wall of the pipe, the sealing sleeve 7 fits against the outer wall of the pipe and can seal the end of the cover 1 away from the fitting blade 4, ensuring that the suction force is directed towards the end of the fitting blade 4.

[0046] In this embodiment, a first telescopic cylinder 43 is connected between the first slip ring 42 and the corresponding cover 1.

[0047] In this embodiment, a second telescopic cylinder 53 is connected between the second slip ring 52 and the corresponding cover 1.

[0048] The positions of the first slip ring 42 and the second slip ring 52 can be servo controlled by the first telescopic cylinder 43 and the second telescopic cylinder 53, thereby quickly adapting to pipes of different diameters and air volumes.

[0049] In practice, the lifting guide rails 6 on both sides of the equipment are fixed to both sides of the pipe. The lifting guide rails 6 are operated to close the two semi-cylindrical covers 1 along the guide rails toward the center until the pipe is completely covered.

[0050] According to the outer diameter of the pipe and the required suction force, the first telescopic cylinder 43 pushes the first slip ring 42 to slide, and drives all the fitting blades 4 to deflect synchronously through the fitting connecting rod 41, so that the blade tip is kept in the optimal suction range of 10-15mm from the pipe surface.

[0051] When the first slip ring 42 moves, the inclined plate 58 on its back presses the ball cap 57, and the compression spring 56 pushes the inner shaft 55 down, so that the extension blade 54 extends out from the guide blade 5, ensuring that the total height of the blade matches the current pipe diameter.

[0052] The second telescopic cylinder 53 drives the second slip ring 52, and adjusts the tilt angle of the guide vane 5 through the guide rod 51, which is in the range of 15°-60°, to control the spiral intensity of the airflow.

[0053] When the exhaust fan 3 is turned on, a negative pressure is formed inside the casing through the exhaust port 2. Dust on the surface of the pipe is discharged by the exhaust fan through the gap between the fitting blades 4 in a spiral airflow towards the exhaust port.

[0054] The above description is merely a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A dust removal device for urban pipeline infrastructure projects, characterized in that, The enclosure (1) includes two semi-cylindrical shells, one of which has an exhaust port (2) on its side wall, and the exhaust port (2) is connected to an exhaust fan (3); Each cover (1) has multiple fitting blades (4) hinged to its front end. Adjacent fitting blades (4) are staggered and fitted together. Each of the fitting blades (4) is hinged to a fitting link (41). A semi-circular first slip ring (42) is slidably provided on the outer wall of the cover (1). The fitting link (41) is hinged to the corresponding first slip ring (42). The inner wall of the cover (1) is distributed with multiple guide blades (5); The center of each guide blade (5) is rotatably disposed inside the cover (1), and its axis of rotation extends through the outside of the cover (1) and is fixed with a guide rod (51). The guide rod (51) is composed of a connecting rod with its two ends hinged to each other. A semi-circular second slip ring (52) is slidably disposed on the outer wall of the cover (1), and the guide rod (51) is hinged to the corresponding second slip ring (52). An extension blade (54) is slidably embedded below the guide blade (5); The center of the extension blade (54) is fixed with an inner shaft (55), which slides through to the upper end of the rotating shaft of the guide blade (5). A ball cap (57) is fixed at the upper end of the inner shaft (55), and a spring (56) is provided between the ball cap (57) and the guide rod (51). The spring (56) provides an elastic force to make the ball cap (57) slide upward. The first slip ring (42) has an inclined plate (58) fixed on the side away from the connecting rod (41), and the ball cap (57) is attached to the lower surface of the inclined plate (58); When the first slip ring (42) slides to different positions, the ball cap (57) also fits against the inclined plate (58) at different heights. The more the fitting blade (4) pulls inward, the more the extension blade (54) slides downward, so as to ensure that the total height of the guide blade (5) and the extension blade (54) adapts to pipes of different diameters with the fitting blade (4). Multiple threaded blades (8) are distributed between the guide vane (5) and the exhaust port (2).

2. The dust removal equipment for urban pipeline infrastructure projects according to claim 1, characterized in that, The two sides of the two housings (1) are respectively connected to the lifting guide rails (6).

3. The dust removal equipment for urban pipeline infrastructure projects according to claim 1, characterized in that, The end of the cover (1) away from the fitting blade (4) is fixed with a sealing sleeve (7), which is an inwardly contracting rubber sleeve.

4. The dust removal equipment for urban pipeline infrastructure projects according to claim 1, characterized in that, The first slip ring (42) is connected to the corresponding cover (1) by a first telescopic cylinder (43).

5. A dust removal device for urban pipeline infrastructure projects according to claim 1, characterized in that, The second slip ring (52) is connected to the corresponding cover (1) by a second telescopic cylinder (53).

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