A device for preventing pollution diffusion and dredging flatness of a cutter suction dredger

Abstract

The utility model discloses a kind of pollution diffusion prevention and excavation flattening device of cutter suction dredger, relate to underwater construction equipment technical field, including drag head bridge, the one end of drag head bridge is fixedly installed with drag head, connecting rod is fixedly installed on the drag head bridge, high-pressure water pump is fixedly installed at the drag head bridge away from drag head, the both sides of high-pressure water pump are respectively hinged with the one end of telescopic support piece one through pin shaft two, the other end of two telescopic support piece one is commonly connected with anti-diffusion component, the anti-diffusion component includes anti-pollution diffusion control cover upper portion and anti-pollution diffusion control cover lower portion, the utility model effectively controls pollution diffusion by anti-diffusion component, while avoiding the clumsiness of anti-pollution diffusion and excavation flattening cover, the utility model is simple structure, convenient to install, good universality, safe and environmentally friendly, installation cost is low, construction efficiency is high, while also improving economic benefits of great degree shorten construction cycle.

Description

Technical Field

[0001] This utility model relates to the field of underwater construction equipment technology, and in particular to a device for preventing pollution diffusion and leveling excavation on a cutter suction dredger. Background Technology

[0002] Port dredging projects are experiencing rapid development in terms of technology, scale, and environmental protection requirements, and are undergoing a profound transformation towards greening, intelligentization, and internationalization. Especially under the pressure of ecological protection, dredging projects must comply with regulations such as the Marine Environmental Protection Law to reduce the spread of suspended solids, protect marine ecosystems, and address potential damage to benthic habitats and the impact of suspended sediment on water quality. This necessitates the use of ecological dredging technologies, such as precision excavation, ecological restoration and balancing engineering, and environmental protection.

[0003] Patent CN207469337U discloses an underwater antifouling diffuser for a dredging vessel, comprising an antifouling diffuser box. Multiple sets of floating devices are arranged on the left and right sides of the antifouling diffuser box. A pipeline nozzle is arranged at the middle position of the bottom of the antifouling diffuser box. A primary energy dissipation device is arranged near the middle position of the bottom surface of the antifouling diffuser box. Multiple side wall energy dissipation plates are arranged on the left and right sides of the antifouling diffuser box.

[0004] Although the patented technology allows the dredged material to settle quickly in almost still water without spreading to the surrounding area or the water surface, thus greatly reducing river water pollution caused by dredging and reclamation construction and effectively protecting the natural environment and river ecology, it cannot smooth the bottom surface, resulting in the actual dredging depth being greater than the target dredging depth, which leads to inaccurate construction precision. Utility Model Content

[0005] To address the aforementioned technical problems, this utility model discloses a pollution prevention and leveling device for a cutter suction dredger, comprising a cutter bridge, a cutter head fixedly mounted at one end of the cutter bridge, a connecting rod hinged to the cutter bridge, a high-pressure water pump fixedly mounted on the cutter bridge away from the cutter head, and one end of a telescopic support member hinged to each side of the high-pressure water pump via two pins, with a common anti-diffusion component connected to the other ends of the two telescopic support members, the anti-diffusion component comprising an upper part of an anti-diffusion control cover and a lower part of an anti-diffusion control cover.

[0006] Furthermore, the upper part of the anti-pollution diffusion control cover includes a top plate, which is hinged to the other end of one of the two telescopic support members. The rear end of the top plate is connected to the lower part of the anti-pollution diffusion control cover, and a sloping front plate is fixedly installed on the front end of the top plate.

[0007] Furthermore, a water delivery pipe is fixedly installed at the outlet of the high-pressure water pump, and a nozzle is fixedly installed at one end of the water delivery pipe. The nozzle is fixedly installed on the top plate and sprays water from the nozzle.

[0008] Furthermore, the lower part of the anti-fouling diffusion control cover includes a rear plate, the middle part of which is hinged to the other end of the connecting rod, the first end of which is connected to the rear end of the top plate, the second end of which is hinged to one end of the web plate via a pin, the other end of which is hinged to one end of the telescopic support member, and the other end of the telescopic support member is riveted to the cutter head bridge.

[0009] Furthermore, the length of the top plate extends a certain dimension from the rear end of the auger head to the front end of the auger head, and the top plate and the inclined front plate extend a certain length along the rotation direction of the auger head's rotation axis.

[0010] Furthermore, a right arc-shaped side plate and a left arc-shaped side plate are respectively connected to both ends of the top plate, and the right arc-shaped side plate and the left arc-shaped side plate extend from one end of the top plate to the other end of the top plate.

[0011] Compared with the prior art, the advantages of this utility model are: This utility model effectively controls the spread of pollution through the anti-diffusion component, while avoiding the bulkiness of the anti-pollution diffusion and excavation leveling cover. This utility model has a simple structure, is easy to install, has good versatility, is safe and environmentally friendly, has low installation cost, and high construction efficiency. It significantly shortens the construction cycle and improves economic benefits, showing its superiority. While ensuring project efficiency, it prioritizes reducing ecological damage and realizes resource recycling. It is significantly better than traditional processes in terms of environmental benefits and long-term economic benefits. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the overall side structure of this utility model.

[0013] Figure 2 This is a schematic diagram of the overall planar structure of this utility model.

[0014] Figure 3 This is a schematic diagram of the overall elevation structure of this utility model.

[0015] Reference numerals: 1-Cutter head; 2-Cutter bridge; 3-Upper part of anti-pollution diffusion control cover; 4-Rear plate; 5-Water; 6-Lower part of anti-pollution diffusion control cover; 7-Pin one; 8-Body plate; 9-Sprayer head; 10-Water supply pipe; 11-Telescopic support component one; 12-Pin two; 13-Telescopic support component two; 14-High-pressure water pump; 15-Right arc-shaped side plate; 16-Connecting rod; 17-Top plate; 18-Slanted front plate; 19-Left arc-shaped side plate. Detailed Implementation

[0016] It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments of the present invention can be combined with each other.

[0017] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0018] 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.

[0019] Example: Figures 1-3 As shown, a pollution prevention and leveling device for a cutter suction dredger includes a cutter bridge 2, a cutter head 1 fixedly installed at one end of the cutter bridge 2, a connecting rod 16 hinged to the cutter bridge 2, a high-pressure water pump 14 fixedly installed on the cutter bridge 2 away from the cutter head 1, and one end of a telescopic support member 11 hinged to both sides of the high-pressure water pump 14 via a pin 12. The other ends of the two telescopic support members 11 are connected to a common anti-spreading component, which includes an upper part 3 of the anti-spreading control cover and a lower part 6 of the anti-spreading control cover.

[0020] The upper part 3 of the anti-pollution diffusion control cover includes a top plate 17, which is hinged to the other end of two telescopic support members 11. The rear end of the top plate 17 is connected to the lower part 6 of the anti-pollution diffusion control cover. A slanted front plate 18 is fixedly installed at the front end of the top plate 17. The length of the top plate 17 extends from the rear end of the cutter head 1 to the front end of the cutter head 1 by a certain dimension. The top plate 17 and the slanted front plate 18 extend a certain length along the rotation direction of the rotation axis of the cutter head 1. The two ends of the top plate 17 are respectively connected to a right arc-shaped side plate 15 and a left arc-shaped side plate 19. The right arc-shaped side plate 15 and the left arc-shaped side plate 19 extend from one end of the top plate 17 to the other end of the top plate 17.

[0021] A water supply pipe 10 is fixedly installed at the outlet of the high-pressure water pump 14. A nozzle 9 is fixedly installed at one end of the water supply pipe 10. The nozzle 9 is fixedly installed on the top plate 17 and sprays water 5 from the nozzle 9.

[0022] The lower part 6 of the anti-pollution diffusion control cover includes a rear plate 4. The middle part of the rear plate 4 is hinged to the other end of the connecting rod 16. The first end of the rear plate 4 is connected to the rear end of the top plate 17. The second end of the rear plate 4 is hinged to one end of the web plate 8 through a pin 7. The other end of the web plate 8 is hinged to one end of the telescopic support member 13. The other end of the telescopic support member 13 is riveted to the cutter bridge 2.

[0023] Telescopic support component 11 and telescopic support component 2 are waterproof hydraulic cylinders.

[0024] Before construction, based on the designed depth, telescopic support component 2 13 is activated. The cylinder arm of telescopic support component 2 13 extends or retracts to adjust the height and tilt angle of the web plate 8, so that the cutting edge of the web plate 8 is just flush with the target dredging surface. At the same time, telescopic support component 1 11 is activated. The cylinder arm of telescopic support component 1 11 extends or retracts, so that the top plate 17 drives the inclined front plate 18 to maintain a small gap with the excavation face without interference. The cutting edge of the cutter head 1 cuts the mud and sand at the bottom of the water, and the dredged mud is transported by the dredger's own... The sludge is transported into the hold by the suction device. During cutting, the cutter head 1 generates suspended sludge, which spreads upwards and is contained above the cutter head 1 by the top plate 17, the front inclined plate 18, and the rear plate 4. The suspended sludge is then trapped within these plates. The high-pressure water pump 14 is then activated, delivering water through the water supply pipe 10 to the nozzle 9. The sprayed water 5 forms a water curtain and also has a stirring and flushing effect, pressing the suspended sludge against the top plate 17. Below the 7 and the inclined front plate 18, to prevent suspended sludge from overflowing, the top plate 17 holds back the rising suspended sludge, the inclined front plate 18 blocks the suspended sludge from moving forward, the right arc-shaped side plate 15 and the left arc-shaped side plate 19 at both ends of the top plate 17 prevent suspended sludge from overflowing from the side, and the rear plate 4 blocks the rearward suspended sludge. Then, the sludge is sucked up by the suction device on the dredger and discharged into the sludge bin. When the cutter head 1 completes the circumferential digging and is ready to retract the cutter, the telescopic support member 2 13... The cylinder arm extends or retracts to adjust the height and tilt angle of the web plate 8. The web plate 8 begins to flatten the mud mounds protruding from the underwater strata. As the hull changes with waves, tides, or dredging depth, the telescopic support 11 adjusts the posture of the rear plate 4, top plate 17, and inclined front plate 18, while the telescopic support 2 13 adjusts the posture of the web plate 8 to ensure that the web plate 8 is in close contact with the dredging surface. If there are excessively high protrusions or foreign objects in the unconstructed area, the rear plate 4 will be slightly rotated through the telescopic support 11 to prevent collision damage.

[0025] The above embodiments only illustrate one or more implementations of this utility model, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of this utility model. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the appended claims.

Claims

1. A device for preventing pollution diffusion and leveling excavation in a cutter suction dredger, characterized in that: The device includes a cutter bridge (2), one end of which is fixedly installed with a cutter head (1). One end of a connecting rod (16) is hinged to the cutter bridge (2). A high-pressure water pump (14) is fixedly installed on the cutter bridge (2) away from the cutter head (1). One end of a telescopic support member (11) is hinged to both sides of the high-pressure water pump (14) through a pin (12). The other ends of the two telescopic support members (11) are connected to an anti-diffusion component. The anti-diffusion component includes an upper part (3) of an anti-pollution diffusion control cover and a lower part (6) of an anti-pollution diffusion control cover.

2. The anti-pollution and dredging leveling device for a cutter suction dredger as described in claim 1, characterized in that: The upper part (3) of the anti-pollution diffusion control cover includes a top plate (17), which is hinged to the other end of the two telescopic support members (11). The rear end of the top plate (17) is connected to the lower part (6) of the anti-pollution diffusion control cover, and the front end of the top plate (17) is fixedly installed with a sloping front plate (18).

3. The anti-pollution and dredging leveling device for a cutter suction dredger as described in claim 2, characterized in that: The outlet of the high-pressure water pump (14) is fixedly equipped with a water delivery pipe (10), and a nozzle (9) is fixedly installed at one end of the water delivery pipe (10). The nozzle (9) is fixedly installed on the top plate (17), and the nozzle (9) sprays out water (5).

4. The anti-pollution and dredging leveling device for a cutter suction dredger as described in claim 3, characterized in that: The lower part (6) of the anti-pollution diffusion control cover includes a rear plate (4), the middle part of which is hinged to the other end of the connecting rod (16), the first end of which is connected to the rear end of the top plate (17), the second end of which is hinged to one end of the web plate (8) via a pin (7), the other end of which is hinged to one end of the telescopic support member (13), and the other end of the telescopic support member (13) is riveted to the auger bridge (2).

5. The anti-pollution and dredging leveling device for a cutter suction dredger as described in claim 4, characterized in that: The length of the top plate (17) extends from the rear end of the cutter head (1) to the front end of the cutter head (1) by a certain dimension, and the top plate (17) and the inclined front plate (18) extend by a certain length along the rotation direction of the rotation axis of the cutter head (1).

6. The anti-pollution and dredging leveling device for a cutter suction dredger as described in claim 5, characterized in that: The top plate (17) is connected to a right arc-shaped side plate (15) and a left arc-shaped side plate (19) at both ends, and the right arc-shaped side plate (15) and the left arc-shaped side plate (19) extend from one end of the top plate (17) to the other end of the top plate (17).

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