A dredging ship's hopper anti-settling structure
By installing a rotating shaft and stirring blades inside the mud hopper of a trailing suction hopper dredger, and combining this with a power structure to drive the stirring blades to rotate, the problem of mud caking was solved, and stable sedimentation and mud discharge within the mud hopper were achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHANGJIANG WUHAN WATERWAY ENG CO
- Filing Date
- 2025-09-03
- Publication Date
- 2026-07-21
AI Technical Summary
When the mud particles are fine, the sedimented mud in traditional trailing suction hopper dredgers tends to clump together and adhere to the mud tank, affecting mud discharge.
A rotating shaft and stirring blades are installed inside the mud chamber. The stirring blades are driven to rotate by a power structure to prevent sediment from clumping and the floating influence of sediment is reduced by the top plate.
It effectively prevents mud from clumping, improves the anti-sedimentation performance of the mud tank, and ensures the stable operation of the dredger.
Smart Images
Figure CN224531779U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the technical field of trailing suction hopper dredger accessory structure, and particularly relates to a mud hopper anti-sedimentation structure for a trailing suction hopper dredger. Background Technology
[0002] A trailing suction hopper dredger is a large, self-propelled, hopper-type dredger equipped with a rake head excavator and a hydraulic suction device. It works by sucking in mud through rake heads located on both sides or at the stern, and simultaneously sucking in mud and sailing. In traditional trailing suction hopper dredgers, solids in the mud settle in the hopper during dredging and hopper loading operations. As more mud is added, the slurry with lower solid content on the surface is discharged, while the settled mud remains in the hopper for collection. When the mud particles are relatively fine, the settled mud is prone to caking and adhering to the hopper, affecting mud discharge. Utility Model Content
[0003] This utility model provides a mud hopper anti-sedimentation structure for a trailing suction hopper dredger, aiming to solve the problem mentioned in the background art where the settled mud slurry remains in the mud hopper for collection, and when the mud slurry particles are relatively fine, the settled mud slurry is prone to clump and adhere to the mud hopper, affecting mud discharge.
[0004] To solve the above problems, this utility model is implemented as follows: a mud hopper anti-sedimentation structure for a trailing suction hopper dredger, comprising: a mud hopper body disposed inside the trailing suction hopper dredger for settling mud; fixing blocks fixed on the inner walls of both sides of the mud hopper body; a rotating shaft mounted on the fixing blocks; a stirring plate mounted on the rotating shaft for pushing the sediment to prevent clumping; and a power structure disposed inside the mud hopper body for adjusting the angle of the stirring plate to loosen the sediment.
[0005] Preferably, a support rod is detachably installed on the top of the fixing block, and a top plate for reducing the floating effect of sediment is fixed on the top of the support rod. The support rods are arranged in groups, and an opening is provided between multiple support rods to allow the flow of clear liquid.
[0006] Preferably, the power structure includes a hydraulic rod fixed to the top plate by a first flange, an adjusting plate fixed to the output rod of the hydraulic rod by a second flange, a triangular plate installed between the adjusting plate and the output rod of the hydraulic rod, and a connecting frame hinged to the adjusting plate and connected to the rotating shaft.
[0007] Preferably, a connecting cylinder is installed on the top of the fixing block, and a connecting rod connected to the support rod is movably installed inside the connecting cylinder. A limit bolt is threaded on the connecting cylinder, and a limit port for accommodating the limit bolt is provided on the connecting rod.
[0008] Preferably, the top of the mud tank body is provided with an inlet pipe for introducing mud, the inlet pipe extending to the bottom of the top plate, and the top of the mud tank body is provided with a drain port for discharging the settled slurry.
[0009] Preferably, a fixing frame is fixed to the bottom of the top plate, and a connecting plate is detachably installed on the fixing frame by fixing bolts. A baffle is installed on the connecting plate at the bottom of the discharge end of the liquid inlet pipe to reduce the impact force of the water flow.
[0010] Preferably, a waterproof rubber protective sleeve is installed between the adjusting plate and the top plate, which is fitted over the hydraulic rod output rod. The rubber protective sleeve is provided with a telescopic ring to assist in the extension and retraction of the rubber protective sleeve.
[0011] Preferably, the bottom of the mud tank body is provided with a mud discharge port for discharging sediment, and a plug plate for sealing the mud discharge port is detachably installed inside the mud discharge port, and the top of the plug plate is provided with a crescent-shaped slow flow groove.
[0012] Compared with related technologies, the anti-sedimentation structure of the dredger's mud hopper provided by this utility model has the following beneficial effects: Compared with existing technologies, the mud hopper anti-settling structure of the trailing suction hopper dredger provided in this solution provides space for mud sedimentation by setting the mud hopper body, the fixed block provides stable support for the rotating shaft, the rotating shaft and the stirring blades cooperate to rotate under the drive of the power structure to prevent sedimentation and agglomeration, the setting of the power structure to adjust the angle of the stirring blades to enhance the loosening effect, and the setting of the top plate to reduce the floating influence of sediment. Attached Figure Description
[0013] Figure 1 This is a front sectional view of the anti-sedimentation structure of the mud hopper of a trailing suction hopper dredger provided by this utility model. Figure 2 for Figure 1 An enlarged structural diagram of part A shown in the figure; Figure 3 This is a schematic diagram of the main structure of the baffle in this utility model; Figure 4 This is a top view of the baffle structure of this utility model.
[0014] Reference numerals in the attached drawings: 1. Mud chamber body; 2. Fixing block; 3. Support rod; 4. Top plate; 5. Hydraulic rod; 6. Adjusting plate; 7. Connecting frame; 8. Rotating shaft; 9. Stirring blade; 10. Rubber protective sleeve; 11. Liquid inlet pipe; 12. Fixing frame; 13. Connecting plate; 14. Baffle; 15. Mud discharge port; 16. Liquid discharge port; 17. Flow trough; 18. Triangular plate. Detailed Implementation
[0015] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terminology used herein in the specification of the application is for the purpose of describing particular embodiments only and is not intended to limit the application; the terms "comprising" and "having," and any variations thereof, in the specification, claims, and foregoing description of the drawings are intended to cover non-exclusive inclusion. The terms "first," "second," etc., in the specification, claims, or foregoing drawings are used to distinguish different objects, not to describe a particular order; the terms "inner," "outer," "left," and "right" indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present invention 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 the present invention.
[0016] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.
[0017] This utility model embodiment provides a mud hopper anti-settlement structure for a trailing suction hopper dredger, such as... Figure 1-4 As shown, the anti-sedimentation structure of the mud hopper of the trailing suction hopper dredger includes: a mud hopper body 1 installed inside the trailing suction hopper dredger for settling mud; fixed blocks 2 fixed on the inner walls of both sides of the mud hopper body 1; a rotating shaft 8 rotatably installed on the fixed blocks 2; a stirring plate 9 installed on the rotating shaft 8 for pushing the sediment to prevent clumping; and a power structure installed inside the mud hopper body 1 for adjusting the angle of the stirring plate to loosen the sediment.
[0018] In this embodiment, by setting up the mud chamber body 1, a specific space is provided for mud sedimentation, which facilitates mud collection and subsequent treatment. By setting up fixing blocks 2 on the inner walls of both sides of the mud chamber body 1, a stable support point is provided for the rotating shaft 8, ensuring structural stability. By rotating the rotating shaft 8 installed on the fixing blocks 2 and the stirring plate 9 installed on the rotating shaft 8, the stirring plate 9 can be rotated under the drive of the power structure to push the sediment, effectively preventing the sediment from clumping and adhering to the mud chamber when the mud particles are fine, thus avoiding affecting mud discharge. By setting up the power structure, the angle of the stirring plate 9 can be adjusted to enhance the loosening effect on the sediment and improve the anti-sedimentation performance of the mud chamber.
[0019] In a further preferred embodiment of the present invention, a support rod 3 is detachably installed on the top of the fixing block 2, and a top plate 4 for reducing the floating influence of sediment is fixed on the top of the support rod 3. The support rods 3 are arranged in groups, and an opening is provided between multiple support rods 3 to allow the flow of clear liquid.
[0020] In this embodiment, the top plate 4 can be flexibly installed and disassembled by detachably installing support rods 3 on the top of the fixed block 2, which facilitates the maintenance of the device and the replacement of parts. The top plate 4 fixed by the support rods 3 reduces the influence of sediment floating, effectively preventing sediment from floating and interfering with the working environment inside the mud tank, and ensuring the mud sedimentation effect. By setting the support rods 3 in groups and providing openings between multiple support rods 3 to allow the flow of clear liquid, the stable support of the top plate 4 is ensured, and the clear liquid in the upper layer of the mud tank can flow smoothly, avoiding the accumulation of clear liquid and affecting the sedimentation efficiency, making the mud sedimentation and clear liquid separation process smoother.
[0021] In a further preferred embodiment of the present invention, the power structure includes a hydraulic rod 5 fixed to the top plate 4 by a first flange, an adjusting plate 6 fixed to the output rod of the hydraulic rod 5 by a second flange, a triangular plate 18 installed between the adjusting plate 6 and the output rod of the hydraulic rod 5, and a connecting frame 7 hinged to the adjusting plate 6 and connected to the rotating shaft 8.
[0022] In this embodiment, a hydraulic rod 5 (taking the ATOS hydraulic cylinder CK40 as an example) is fixed to the top plate 4 via a first flange. The flange connection ensures the stability and sealing of the hydraulic rod 5 installation, enabling stable power output. In conjunction with the connecting frame 7, the linear motion of the hydraulic rod 5 can be converted into the rotation of the rotating shaft 8, thereby driving the stirring blade 9 to work. This effectively transmits the power of the hydraulic rod 5 to the rotating shaft 8, allowing the stirring blade 9 to flexibly adjust its angle, effectively loosening sediment, preventing mud caking, improving the anti-sedimentation effect of the mud tank, and ensuring the stability of the dredging vessel operation.
[0023] In a further preferred embodiment of this utility model, a connecting cylinder is installed on the top of the fixing block 2, and a connecting rod connected to the support rod 3 is movably installed inside the connecting cylinder. A limit bolt is threaded on the connecting cylinder, and a limit port for accommodating the limit bolt is provided on the connecting rod.
[0024] In this embodiment, by installing a connecting cylinder on the top of the fixed block 2, a stable and regular installation base is provided for the connection of the support rod 3, making the overall structure more stable. The connecting rod connected to the support rod 3 is movably installed inside the connecting cylinder, realizing the function of flexibly adjusting the height of the support rod 3. The position of the top plate 4 can be adjusted according to the actual operation requirements, enhancing the adaptability of the device. By installing a limiting bolt on the threaded connecting cylinder, and cooperating with the limiting port on the connecting rod for accommodating the limiting bolt, the position of the connecting rod can be fixed to prevent it from moving at will.
[0025] In a further preferred embodiment of the present invention, the top of the mud tank body 1 is provided with an inlet pipe 11 for introducing mud, the inlet pipe 11 extends to the bottom of the top plate 4, and the top of the mud tank body 1 is provided with a drain port 16 for discharging the settled slurry.
[0026] In this embodiment, by setting an inlet pipe 11 for introducing mud at the top of the mud tank body 1, and extending the inlet pipe 11 to the bottom of the top plate 4, the mud can be directly transported to the lower part of the mud tank, avoiding splashing of mud during transportation. At the same time, allowing the mud to enter from a lower position is more conducive to sedimentation and improves sedimentation efficiency. The drain port 16 set at the top of the mud tank body 1 for discharging the sedimented slurry can promptly discharge the upper sedimented slurry with low solid content, so that there is enough space in the mud tank to continue to accommodate new mud, ensuring the continuous operation capability of the mud tank. This realizes the smooth introduction of mud and the effective output of sedimented slurry, and optimizes the mud treatment process in the mud tank.
[0027] In a further preferred embodiment of the present invention, a fixing frame 12 is fixed to the bottom of the top plate 4, and a connecting plate 13 is detachably installed on the fixing frame 12 by fixing bolts. A baffle 14 for reducing the impact force of water flow is installed on the connecting plate 13 at the bottom of the discharge end of the liquid inlet pipe 11.
[0028] In this embodiment, by fixing the mounting bracket 12 at the bottom of the top plate 4, a stable installation foundation is provided for subsequent components, ensuring the stability of the overall structure. The mounting bracket 12 is detachably mounted with a connecting plate 13 via fixing bolts, which facilitates the installation, disassembly, maintenance and replacement of the baffle 14, improving the flexibility and maintainability of the device. The baffle 14, which is installed on the connecting plate 13 at the bottom of the discharge end of the liquid inlet pipe 11, can effectively reduce the impact force of the mud water flow discharged from the liquid inlet pipe 11, avoid the strong water flow impact from damaging the sedimentation environment already formed in the mud chamber, reduce the disturbance to the sediment, and make the sedimentation process more stable and orderly, which helps to improve the mud sedimentation effect.
[0029] In a further preferred embodiment of the present invention, a rubber protective sleeve 10 for waterproofing is installed between the adjusting plate 6 and the top plate 4, and the rubber protective sleeve 10 is provided with a telescopic ring for assisting the extension and retraction of the rubber protective sleeve 10.
[0030] In this embodiment, by installing a rubber protective sleeve 10 between the adjusting plate 6 and the top plate 4 and covering the output rod of the hydraulic rod 5, the mud, water and other impurities in the mud chamber are effectively prevented from contacting the output rod of the hydraulic rod 5, thus providing good waterproof and anti-fouling effects. This avoids the output rod from being unable to move smoothly or being damaged due to corrosion, rust and other reasons, and extends the service life of the hydraulic rod 5. The expansion ring on the rubber protective sleeve 10, which is used to assist in the extension and retraction, allows the rubber protective sleeve 10 to deform flexibly with the extension and retraction of the output rod of the hydraulic rod 5, and it will not break or lose its protective function due to the limitation of extension and retraction.
[0031] In a further preferred embodiment of the present invention, the bottom of the mud chamber body 1 is provided with a mud discharge port 15 for discharging sediment, and a plug plate for sealing the mud discharge port 15 is detachably installed inside the mud discharge port 15, and the top of the baffle 14 is provided with a crescent-shaped slow flow groove 17.
[0032] In this embodiment, by setting a sludge discharge port 15 at the bottom of the sludge tank body 1 and detachably installing a plug for sealing, when it is necessary to clean the sediment in the sludge tank, simply remove the plug, and the sediment can be smoothly discharged from the sludge discharge port 15. The operation is simple, the sludge discharge efficiency is improved, and the regular maintenance and cleaning of the sludge tank is convenient. By setting a crescent-shaped slow flow channel 17 at the top of the baffle 14, when the sludge is discharged from the liquid inlet pipe 11, the slow flow channel 17 can further slow down the water flow speed, reduce the impact of the water flow on the sedimentation environment in the sludge tank, make the sedimentation process more stable, effectively reduce the situation where the sediment is stirred up by the water flow, and help improve the sedimentation quality of the sludge.
[0033] In summary, compared with related technologies, this device provides space for mud sedimentation by setting up the mud chamber body 1, provides stable support for the rotating shaft 8 by setting up the fixed block 2, prevents sediment from clumping by rotating the rotating shaft 8 in cooperation with the stirring plate 9 under the drive of the power structure, enhances the loosening effect by setting up the power structure to adjust the angle of the stirring plate 9, and reduces the floating influence of sediment by setting up the top plate 4.
[0034] It should be understood, in the several embodiments provided in this application, that the disclosed apparatus may be implemented in other ways.
[0035] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit the scope of protection of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on these embodiments, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model. Although this utility model has been described in detail with reference to the above embodiments, those skilled in the art can still combine, add, delete, or otherwise adjust the features of the various embodiments of this utility model according to the circumstances without conflict or creative effort, thereby obtaining different technical solutions that do not fundamentally depart from the concept of this utility model. These technical solutions are also within the scope of protection of this utility model.
Claims
1. A mud hopper anti-settlement structure for a trailing suction hopper dredger, characterized in that, include: The mud chamber body (1) is installed in the trailing suction hopper dredger for settling mud. Fixing blocks (2) are fixed on the inner walls of both sides of the mud chamber body (1); Rotate the shaft (8) mounted on the fixed block (2); A stirring plate (9) is installed on the rotating shaft (8) to push the sediment to prevent it from clumping. The dynamic structure installed inside the mud chamber body (1) is used to adjust the angle of the stirring blades to loosen the sediment.
2. The anti-sedimentation structure of the mud hopper of the trailing suction hopper dredger as described in claim 1, characterized in that, The top of the fixing block (2) is detachably equipped with a support rod (3), and the top of the support rod (3) is fixed with a top plate (4) for reducing the influence of sediment floating. The support rods (3) are arranged in groups, and an opening is provided between multiple support rods (3) to allow the flow of clear liquid.
3. The anti-sedimentation structure of the dredger's mud hopper as described in claim 2, characterized in that, The power structure includes a hydraulic rod (5) fixed to the top plate (4) via a first flange, an adjusting plate (6) fixed to the output rod of the hydraulic rod (5) via a second flange, and a connecting frame (7) hinged to the adjusting plate (6) and connected to the rotating shaft (8).
4. The anti-sedimentation structure of the dredger's mud hopper as described in claim 2, characterized in that, A connecting cylinder is installed on the top of the fixing block (2), and a connecting rod connected to the support rod (3) is movably installed inside the connecting cylinder. A limit bolt is threaded on the connecting cylinder, and a limit port for accommodating the limit bolt is provided on the connecting rod.
5. The anti-sedimentation structure of the mud hopper of the trailing suction hopper dredger as described in claim 2, characterized in that, The top of the mud tank body (1) is provided with an inlet pipe (11) for introducing mud, the inlet pipe (11) extends to the bottom of the top plate (4), and the top of the mud tank body (1) is provided with a drain port (16) for discharging the settled slurry.
6. The anti-sedimentation structure of the mud hopper of the trailing suction hopper dredger as described in claim 5, characterized in that, The bottom of the top plate (4) is fixed with a fixing frame (12), and a connecting plate (13) is detachably installed on the fixing frame (12) by fixing bolts. A baffle (14) is installed on the connecting plate (13) at the bottom of the discharge end of the liquid inlet pipe (11) to reduce the impact force of the water flow.
7. The anti-sedimentation structure of the mud hopper of the trailing suction hopper dredger as described in claim 3, characterized in that, A rubber protective sleeve (10) for waterproofing is installed between the adjusting plate (6) and the top plate (4) and is sleeved on the output rod of the hydraulic rod (5). The rubber protective sleeve (10) is provided with a telescopic ring for assisting the extension and retraction of the rubber protective sleeve (10).
8. The anti-sedimentation structure of the dredger's mud hopper as described in claim 6, characterized in that, The bottom of the mud tank body (1) is provided with a mud discharge port (15) for discharging sediment. A plug plate for sealing the mud discharge port (15) is detachably installed inside the mud discharge port (15). The top of the baffle (14) is provided with a crescent-shaped slow flow groove (17).