Combined cutter suction dredger

Abstract

The invention relates to a combined cutter suction dredger. Comprising a middle buoyancy compartment, and a front-section buoyancy compartment, a middle-section buoyancy compartment and a rear-section buoyancy compartment are arranged on the left side and the right side of the middle buoyancy compartment respectively. The top of the front-section buoyancy compartment and the top of the middle-section buoyancy compartment, the top of the middle-section buoyancy compartment and the top of the rear-section buoyancy compartment, and the top of the middle-section buoyancy compartment and the top of the rear-section buoyancy compartment are fixedly connected through detachable connecting structures. The bottoms of the middle buoyancy compartment, the middle buoyancy compartment and the rear buoyancy compartment are connected through detachable supporting structures; a control chamber is mounted above the middle buoyancy compartment by adopting a plurality of adapters; the bridge frame is provided with a bridge frame mud pipeline, a bridge frame mud pump and a reamer assembly; the upper end of the bridge frame is hinged with the front part of the middle buoyancy cabin; a portal frame is installed on the front portion of the front-section buoyancy compartment, a positioning steel pile assembly is installed on the rear portion of the rear-section buoyancy compartment, and a lifting cable mechanism, a transverse moving cable mechanism and an on-ship mud pipeline are further included. The combined cutter suction dredger provided by the invention can be split into a plurality of independent parts, and the independent parts are transported on the land by adopting an engineering vehicle and are assembled and used when arriving at a project site, so that convenience is provided for construction of the cutter suction dredger in an inland water area.

Description

Technical Field

[0001] The invention belongs to the technical field of cutter suction dredger equipment, and in particular relates to a combined cutter suction dredger. Background Art

[0002] A cutter suction dredger is a large-scale dredging equipment that relies on a cutter to excavate the bottom mud surface. The mud is transported ashore or transferred to a nearby barge through a mud discharge pipe using a mud pump equipped on the cutter suction dredger. The cutter suction dredger is widely used in modern dredging construction projects due to its powerful active excavation capability.

[0003] A cutter suction dredger is a large construction vessel, usually used in dredging construction projects of waterways and ports. In recent years, dredging projects in inland rivers, wetlands and lakes have gradually used cutter suction dredger equipment, especially in dredging projects of reservoirs. People hope to put cutter suction dredgers into engineering applications to shorten construction periods and improve construction results. However, the problem is that the existing cutter suction dredger equipment cannot directly sail to inland construction sites. The navigation of large cutter suction dredgers has requirements for water depth, and the bridges along the way will have an adverse effect on navigation. As for inland lakes and reservoirs, cutter suction dredgers cannot reach them at all. In summary, it is necessary to develop and design a combined cutter suction dredger to solve the aforementioned technical problems. Summary of the invention

[0004] The purpose of the present invention is to provide a combined cutter suction dredger that can be disassembled into multiple independent parts and transported by land using engineering vehicles, and assembled and used at the project site, thereby providing convenience for the cutter suction dredger to carry out construction in inland waters.

[0005] The technical solution adopted by the present invention is: a combined suction dredger, including a middle buoyancy tank, a front buoyancy tank, a middle buoyancy tank and a rear buoyancy tank are respectively arranged on the left and right sides of the middle buoyancy tank, the front buoyancy tank and the top of the middle buoyancy tank, the middle buoyancy tank and the top of the rear buoyancy tank are fixedly connected by a detachable connection structure, and the middle buoyancy tank and the bottom of the middle buoyancy tank and the rear buoyancy tank are connected by a detachable supporting structure; a control room is installed above the middle buoyancy tank by using multiple adapters; it also includes a bridge with a bridge mud pipeline, a bridge mud pump and a reamer assembly, and the upper end of the bridge is hingedly connected to the front of the middle buoyancy tank; a gantry is installed at the front of the front buoyancy tank, a positioning steel pile assembly is installed at the rear of the rear buoyancy tank, and it also includes a lifting cable mechanism and a transverse cable mechanism as well as an onboard mud pipeline.

[0006] Preferably, the detachable connecting structure includes a fixed transverse plate and a connecting vertical plate with connecting holes fixedly connected to the fixed transverse plate, a reinforcing rib plate is installed between the fixed transverse plate and the connecting vertical plate, the fixed transverse plate is welded and fixed to the cabin section, and adjacent connecting vertical plates are fixedly connected by bolts.

[0007] Preferably, the detachable support structure includes a support block with a groove installed on the inner side of the bottom of the outer compartment section, a step groove is provided on the outer side of the bottom of the middle buoyancy compartment and an engaging ridge is provided on the top wall of the step groove, the support block is located inside the step groove and the engaging ridge is embedded in the groove of the support block.

[0008] Preferably, the front buoyancy tank adopts the internal partition of the tank to form the bow ballast water tank, the front first empty tank and the front second empty tank in sequence from front to back.

[0009] Preferably, the middle buoyancy tank adopts the internal partition of the cabin to form a storage tank, a middle empty tank and a fresh water tank from front to back.

[0010] Preferably, the rear buoyancy tank adopts the internal partition to form the first fuel tank, the second fuel tank, the third fuel tank, the engine room and the stern ballast water tank from front to back, and a generator is installed in the engine room.

[0011] Preferably, a ship-borne mud pump and a hydraulic pump station are installed inside the middle buoyancy tank, the ship-borne mud pipeline is connected to the outlet of the ship-borne mud pump, and the bridge mud pipeline is connected to the inlet of the ship-borne mud pump.

[0012] Preferably, an anchor bracket and an anchor cable mechanism are also installed at the front of the front buoyancy compartment, and an anchor cast by the anchor cable mechanism is provided at the outer end of the anchor bracket.

[0013] Preferably, a U-shaped bow platform is also installed at the front of the gantry, and when the bridge is lifted to a horizontal position by a lifting cable mechanism, the reamer assembly is located on the inner side of the bow platform.

[0014] Preferably, a bow crane is installed on the front buoyancy compartment, and a stern crane is installed on the rear buoyancy compartment.

[0015] The advantages and positive effects of the present invention are:

[0016] The present invention provides a combined cutter suction dredger, the main body of which consists of a middle buoyancy tank and front, middle and rear buoyancy tanks on both sides. Adjacent buoyancy tank sections are assembled and connected by a detachable connection structure on the top and a detachable support structure on the bottom. A modular bridge and a gantry with a bridge mud pipeline, a bridge mud pump and a reamer assembly are also configured. A positioning steel pile assembly, a lifting cable mechanism and a transverse cable mechanism and an onboard mud pipeline are also provided. Therefore, the cutter suction dredger can be disassembled and combined. After disassembly, a plurality of independent parts are formed and transported by land by engineering vehicles. The parts are assembled and used at the project site, thereby providing convenience for the cutter suction dredger to carry out construction in inland waters. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the main structure of the present invention;

[0018] Figure 2 It is a schematic diagram of the top view of the structure of the present invention;

[0019] Figure 3 It is a schematic diagram of the top view of the main part of the present invention;

[0020] Figure 4 yes Figure 1 Schematic diagram of the connection structure between the central control room and the main part;

[0021] Figure 5 yes Figure 4 A schematic diagram of the enlarged structure of part A;

[0022] Figure 6 yes Figure 4 Schematic diagram of the enlarged structure of part B.

[0023] In the figure:

[0024] 1. Anchor; 2. Anchor bracket; 3. Bow platform; 4. Sidewall tire; 5. Bow crane; 6. Anchor cable mechanism; 7. High-voltage electrical components; 8. Front buoyancy tank; 8-1. Bow ballast tank; 8-2. Front first empty tank; 8-3. Front second empty tank; 9. Bridge mud pipeline; 10. Cutter assembly; 11. Bridge mud pump; 12. Bridge; 13. Transverse cable mechanism; 14. Middle buoyancy tank; 14-1. Storage tank; 14-2. Middle empty tank; 14-3. Fresh water tank; 15. Lifting cable mechanism; 16. Control room; 17. Stern crane; 1 8. Mud pipeline on board; 19. Rear buoyancy tank; 19-1. First fuel tank; 19-2. Second fuel tank; 19-3. Third fuel tank; 19-4. Engine room; 19-5. Stern ballast water tank; 20. Positioning steel pile assembly; 21. Middle buoyancy tank; 22. Ship-borne mud pump; 23. Generator; 24. Adapter; 25. Removable connection structure; 25-1. Reinforcement rib plate; 25-2. Fixed horizontal plate; 25-3. Connecting vertical plate; 26. Removable support structure; 26-1. Engaging ridge; 26-2. Step groove; 26-3. Support block. DETAILED DESCRIPTION

[0025] In order to further understand the content, features and effects of the present invention, the following embodiments are given to explain in detail.

[0026] See also Figure 1 , Figure 2 and Figure 3 The combined suction dredger of the present invention comprises a middle buoyancy chamber 21, and a front buoyancy chamber 8, a middle buoyancy chamber 14 and a rear buoyancy chamber 19 are respectively arranged on the left and right sides of the middle buoyancy chamber 21. The front buoyancy chamber 8 and the top of the middle buoyancy chamber 14, the middle buoyancy chamber 14 and the top of the rear buoyancy chamber 19, and the middle buoyancy chamber 21 and the tops of the middle buoyancy chamber 14 and the rear buoyancy chamber 19 are all fixedly connected by a detachable connecting structure 25, and the middle buoyancy chamber 21 and the bottoms of the middle buoyancy chamber 14 and the rear buoyancy chamber 19 are all connected by a detachable supporting structure 26.

[0027] like Figure 3 As shown in , the main part of the combined suction dredger is in an H-shape, the three-section cabin structure on the left and the three-section cabin structure on the right can be split and combined, and the middle buoyancy cabin 21 and the three-section cabins on both sides can be split and combined. After being fully split, the main part of the combined suction dredger is divided into multiple independent cabins, which can be transported in separate parts by land transportation and assembled after arriving at the construction project site. The support tires 4 can be installed on the outside of the three-section cabin structure on both sides to prevent the three-section cabin structure from being directly squeezed by other ships or when docking.

[0028] A control room 16 is installed above the middle buoyancy tank 21 using multiple adapters 24, so the control room 16 is also a separate component and is installed separately after the main body of the ship is assembled. Figure 4 As shown in the figure, the transverse width of the control room 16 is greater than the width of the middle buoyancy tank 21 and less than the total width of the main body of the ship. An adapter 24 is provided between the bottom of the control room 16 and the middle buoyancy tank 14 and the middle buoyancy tank 21. The multiple adapters 24 provide stable support for the control room 16 and improve the convenience of disassembly and assembly of the control room 16. Specifically, the bottom of the adapter 24 is fixedly connected to the top bulkheads of the middle buoyancy tank 14 and the middle buoyancy tank 21 by bolts, and the top of the adapter 24 is fixedly connected to the bottom wall of the control room 16 by bolts.

[0029] See also Figure 5 , we can see that:

[0030] In this embodiment, the detachable connection structure 25 includes a fixed transverse plate 25-2 and a connecting vertical plate 25-3 fixedly connected to the fixed transverse plate 25-2 and having a connecting hole. A reinforcing rib plate 25-1 is installed between the fixed transverse plate 25-2 and the connecting vertical plate 25-3. The fixed transverse plate 25-2 is welded and fixed to the compartment where it is located, and adjacent connecting vertical plates 25-3 are fixedly connected by bolts. Figure 3 As shown in the figure, the three-section hull structure on each side has a detachable connection structure 25 fixed by bolts between the front buoyancy tank 8 and the top of the middle buoyancy tank 14, and between the middle buoyancy tank 24 and the top of the rear buoyancy tank 19. The detachable connection structure 25 is fixed by bolts between the front of the middle buoyancy tank 21 and the middle buoyancy tank 14, between the middle and the middle buoyancy tank 14, and between the rear and the rear buoyancy tank 19.

[0031] See also Figure 6 , it can be seen that: in this embodiment,

[0032] The detachable support structure 26 includes a support block 26-3 with a groove installed on the inner side of the bottom of the outer compartment (the middle buoyancy compartment 14 and the rear buoyancy compartment 19), a step groove 26-2 is provided on the outer side of the bottom of the middle buoyancy compartment 21, and a fitting ridge 26-1 is provided on the top wall of the step groove 26-2, and the support block 26-2 is located inside the step groove 26-2 and the fitting ridge 26-1 is embedded in the groove of the support block 26-3. When the main body of the ship is assembled, the lower detachable support structure 26 is first combined, and then the upper detachable connection structure 25 is bolted.

[0033] In this embodiment, the front buoyancy tank 8 uses the internal partition to form the bow ballast water tank 8-1, the front first empty tank 8-2 and the front second empty tank 8-3 from front to back. The bow ballast water tank 8-1 is used to load ballast water to improve stability, and the front first empty tank 8-2 and the front second empty tank 8-3 are used to provide buoyancy for the ship.

[0034] In this embodiment, the middle buoyancy tank 14 uses the internal partitions to form a storage tank 14-1, a middle empty tank 14-2 and a fresh water tank 14-3 from front to back, wherein the storage tank 14-1 is used to store ship supplies and is provided with an entrance and exit and stairs leading to the cabin, the middle empty tank 14-2 is used to provide ship buoyancy, and the fresh water tank 14-3 is used to store fresh water.

[0035] In this embodiment, the rear buoyancy tank 19 uses the internal partition to form the first fuel tank 19-1, the second fuel tank 19-2, the third fuel tank 19-3, the ship engine room 19-4 and the stern ballast water tank 19-5 from front to back. A generator 23 is installed in the ship engine room 19-4, wherein the first fuel tank 19-1, the second fuel tank 19-2 and the third fuel tank 19-3 are used to store fuel, and the generator 23 uses fuel to generate electricity to provide power supply for the entire ship. The stern ballast water tank 19-5 is used to load ballast water to improve stability. A high-voltage electrical component 7 is installed on the middle buoyancy tank 14, and the generator 23 is connected to the high-voltage electrical component 7 through a cable to realize power supply, and other electrical facilities are connected to the power supply end of the high-voltage electrical component 7 through a cable.

[0036] It also includes a bridge 12 with a bridge mud pipeline 9, a bridge mud pump 11 and a reamer assembly 10, and the upper end of the bridge 12 is hingedly connected to the front of the middle buoyancy tank 21. A gantry is installed at the front of the front buoyancy tank 8, and a positioning steel pile assembly 20 is installed at the rear of the rear buoyancy tank 19. It also includes a lifting cable mechanism 15 and a traverse cable mechanism 13 and a shipboard mud pipeline 18.

[0037] The reamer assembly 10 is composed of a reamer and a hydraulic motor. When the bridge 12 is lowered, the reamer assembly 10 is lowered to the bottom mud surface. When the reamer assembly is running, it produces a cutting effect on the bottom mud surface, and the bridge mud pump 11 produces an extraction effect. The mud formed by the reamer assembly 10 enters the rear mud suction port and is transported upward by the bridge mud pipeline 9. The lifting and lowering of the bridge 12 is controlled by the lifting cable mechanism 15. Specifically, the lifting cable mechanism 15 is a lifting winch. A pulley assembly is installed at the outer end of the gantry and the bridge 12. The steel cable retracted and unreeled by the lifting winch is connected to the bridge 12 through the aforementioned pulley assembly. By controlling the reeling and unreeling of the steel cable, the lifting and lowering of the bridge 12 and its accessories are controlled. When carrying out the winch construction, the bridge 12 also needs to drive the reamer assembly 10 to swing left and right at a certain angle. The swinging action of the bridge 12 is performed by the transverse cable mechanism 13. The transverse cable mechanism 13 is a transverse winch. The transverse winch is installed at the root position of the bridge 12. By controlling the movement of the transverse cable, the bridge 12 is controlled to swing left and right.

[0038] The positioning steel pile assembly 20 is used for positioning and moving the suction dredger, and includes a fixed positioning steel pile and a positioning steel pile carried by a trolley. During stationary construction, the two positioning steel piles are inserted into the mud surface of the bottom of the water. When the ship needs to be moved, one of the positioning steel piles is lifted up to leave the mud surface of the bottom of the water, and then the trolley is moved, and then the positioning steel pile is reinserted into the mud surface of the bottom of the water, and then the other positioning steel pile is lifted, and then the ship is moved, and the positioning steel pile is reinserted after it is moved into place.

[0039] In this embodiment, a ship-borne mud pump 22 and a hydraulic pump station are installed inside the middle buoyancy chamber 21, the ship-borne mud pipeline 18 is connected to the outlet of the ship-borne mud pump 22, and the bridge mud pipeline 9 is connected to the inlet of the ship-borne mud pump 22. The mud excavated by the reamer assembly 10 reaches the ship-borne mud pump 22 along the bridge mud pipeline 9 under the action of the bridge mud pump 11, and under the action of the ship-borne mud pump 22, the mud enters the ship-borne mud pipeline 18, which usually extends to the stern of the ship and has a reserved interface. During construction, the water self-floating mud pipeline is docked with the ship-borne mud pipeline 18, and under the strong pumping action of the ship-borne mud pump 22, the excavated mud is transported to land via the water self-floating mud pipeline.

[0040] An anchor bracket 2 and an anchor cable mechanism 6 are also installed in the front part of the front buoyancy chamber 8. An anchor 1 for throwing by the anchor cable mechanism 6 is provided at the outer end of the anchor bracket 2. The anchor cable mechanism 6 is an anchor cable winch. The anchor cable winch controls the retraction and release of the anchor cable to achieve anchoring and lifting. During construction, the anchor 1 is thrown into the nearby waters to anchor the ship and improve stability.

[0041] In the present embodiment, a U-shaped bow platform 3 is also installed at the front of the gantry. When the bridge 12 is lifted to a horizontal position by the lifting cable mechanism 15, the reamer assembly 10 is located on the inner side of the bow platform 3, which facilitates the cleaning and maintenance of the reamer assembly 10. During construction, the reamer assembly 10 may have problems such as foreign objects being inserted and the teeth being damaged, and needs to be repaired and maintained. At this time, the bridge 12 is lifted to a horizontal position, and the maintenance personnel on the bow platform 3 perform the operation.

[0042] In this embodiment, a bow crane 5 is installed on the front buoyancy compartment 8, and a stern crane 17 is installed on the rear buoyancy compartment 19. The bow crane 5 and the stern crane 17 are provided for lifting materials.

Claims

1. A combined cutter suction dredger, characterized by: The invention comprises a middle buoyancy chamber (21), wherein a front buoyancy chamber (8), a middle buoyancy chamber (14) and a rear buoyancy chamber (19) are respectively arranged on the left and right sides of the middle buoyancy chamber (21); a detachable connection structure (25) is used to fix the front buoyancy chamber (8) and the top of the middle buoyancy chamber (14), the middle buoyancy chamber (14) and the top of the rear buoyancy chamber (19), and the middle buoyancy chamber (21) and the tops of the middle buoyancy chamber (14) and the rear buoyancy chamber (19); and a detachable connection structure (25) is used to fix the middle buoyancy chamber (21) and the bottoms of the middle buoyancy chamber (14) and the rear buoyancy chamber (19). A detachable supporting structure (26) is used for connection; a control room (16) is installed above the middle buoyancy chamber (21) using multiple adapters (24); it also includes a bridge (12) with a bridge mud pipeline (9), a bridge mud pump (11) and a reamer assembly (10), and the upper end of the bridge (12) is hingedly connected to the front of the middle buoyancy chamber (21); a gantry is installed at the front of the front buoyancy chamber (8), and a positioning steel pile assembly (20) is installed at the rear of the rear buoyancy chamber (19); it also includes a lifting cable mechanism (15) and a transverse cable mechanism (13) as well as an onboard mud pipeline (18).

2. The combined cutter suction dredger according to claim 1, characterized in that: The detachable connection structure (25) comprises a fixed transverse plate (25-2) and a connecting vertical plate (25-3) fixedly connected to the fixed transverse plate (25-2) and having a connecting hole, a reinforcing rib plate (25-1) is installed between the fixed transverse plate (25-2) and the connecting vertical plate (25-3), the fixed transverse plate (25-2) is welded and fixed to the cabin section, and adjacent connecting vertical plates (25-3) are fixedly connected by bolts.

3. The combined cutter suction dredger according to claim 2, characterized in that: The detachable supporting structure (26) comprises a supporting block (26-3) with a groove installed on the inner side of the bottom of the outer compartment section, a stepped groove (26-2) is provided on the outer side of the bottom of the middle buoyancy compartment (21), and an engaging ridge (26-1) is provided on the top wall of the stepped groove (26-2), the supporting block (26-3) is located inside the stepped groove (26-2), and the engaging ridge (26-1) is embedded in the groove of the supporting block (26-3).

4. The combined cutter suction dredger according to claim 3, characterized in that: The front buoyancy tank (8) uses a bulkhead in the tank to sequentially form a bow ballast water tank (8-1), a front first empty tank (8-2) and a front second empty tank (8-3) from front to back.

5. The combined cutter suction dredger according to claim 4, characterized in that: The middle buoyancy tank (14) uses a cabin partition to sequentially form a storage tank (14-1), a middle empty tank (14-2) and a fresh water tank (14-3) from front to back.

6. The combined cutter suction dredger according to claim 5, characterized in that: The rear buoyancy tank (19) uses a partition plate inside the tank to sequentially form a first fuel tank (19-1), a second fuel tank (19-2), a third fuel tank (19-3), an engine room (19-4) and a stern ballast water tank (19-5) from front to back, and a generator (23) is installed in the engine room (19-4).

7. The combined cutter suction dredger according to claim 6, characterized in that: A shipborne mud pump (22) and a hydraulic pump station are installed inside the middle buoyancy chamber (21); the shipborne mud pipeline (18) is connected to the outlet of the shipborne mud pump (22); and the bridge mud pipeline (9) is connected to the inlet of the shipborne mud pump (22).

8. The combined cutter suction dredger according to claim 7, characterized in that: An anchor bracket (2) and an anchor cable mechanism (6) are also installed at the front of the front buoyancy compartment (8), and an anchor (1) cast by the anchor cable mechanism (6) is provided at the outer end of the anchor bracket (2).

9. The combined cutter suction dredger according to claim 8, characterized in that: A U-shaped bow platform (3) is also installed at the front of the gantry. When the bridge frame (12) is lifted to a horizontal position by a lifting cable mechanism (15), the reamer assembly (10) is located on the inner side of the bow platform (3).

10. The combined cutter suction dredger according to claim 9, characterized in that: A bow crane (5) is installed on the front buoyancy compartment (8), and a stern crane (17) is installed on the rear buoyancy compartment (19).

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