A sand mining and loading platform device for a cutter suction ship

Abstract

The present invention relates to a sand mining and barge loading platform device for a dredger suction ship, comprising a self-floating platform, a platform mud pipe, a rotating barge loading tower, a winch and a sand barge. A plurality of rotating barge loading towers are respectively arranged on the left and right sides of the self-floating platform, and each rotating barge loading tower can be controlled separately. The platform mud pipe is installed on the self-floating platform, and is provided with an inlet and a plurality of outlets. The inlet of the platform mud pipe is connected to the self-floating mud discharge pipe of the dredger suction ship, and each outlet of the platform mud pipe is respectively connected to a corresponding rotating barge loading tower. The rotating barge loading tower comprises a barge loading tower frame and a barge loading pipe fitting. The barge loading tower frame is installed on the self-floating platform, and the inlet of the barge loading pipe fitting is rotatably connected to the platform mud pipe in the circumferential direction. A guide fixed pulley is installed on the barge loading tower frame, and a movable pulley is arranged on the barge loading pipe fitting. The winch is installed on the self-floating platform, and the winch is connected to the movable pulley through a steel wire rope wound around the guide fixed pulley, so as to control the barge loading pipe fitting to rotate and load sand to the sand barge. The present invention solves the problem of sand mining and barge loading by a dredger suction ship in the open sea, and the device has a wide adjustment range, and is safe and efficient.

Description

Technical Field

[0001] The invention belongs to the technical field of dredging, and in particular relates to a sand mining and loading platform device for a cutter suction ship. Background Art

[0002] With the advancement of national policies, large-scale infrastructure construction projects such as ports, docks, and airports around the world are moving forward. The sand source for land reclamation in offshore areas is becoming increasingly scarce, so many engineering projects tend to take sand from the open sea to meet the demand. Taking sand from the open sea requires solving two key problems: "taking" and "transporting". The sand source in the open sea is static all year round, with little disturbance and high density. If rake suction or jet sand is used, it is difficult to break the soil, and the sand taking efficiency is not high. The auger of the dredger suction ship can directly act on the sand body, and the breaking effect is significant. Therefore, dredger suction sand can be used to solve the problem of "taking". However, the dredger suction ship has no mud tank, and the sand excavated by the dredger suction ship needs to be transported to the infrastructure area by barge to solve the problem of "transportation". At present, most dredger suction ships do not have a barge loading system, and the existing dredger suction barge loading scheme is only to load the barge by lifting a rubber hose with a steel wire core through a steel wire, and the rubber hose has a small bending radius, is easy to bend, and has a small adjustment range. In addition, the steel wire hoisting hose is easy to shake under the impact of water flow, and has poor safety. Therefore, it is very necessary to design a sand-taking and loading platform device for a dredger suction boat with a wide adjustment range, safety and high efficiency. Summary of the invention

[0003] In view of the problems existing in the prior art, the present invention provides a sand mining and barge loading platform device for a dredging suction vessel with a wide adjustment range, safety and high efficiency, which solves the problem of dredging sand and loading barges by a dredging suction vessel in the open sea.

[0004] The present invention is achieved as follows: a sand mining and barge loading platform device for a dredging suction ship comprises a self-floating platform, a platform mud pipe, a rotating barge loading tower, a winch and a sand barge, wherein the self-floating platform is respectively provided with a plurality of rotating barge loading towers on the left and right sides, and each rotating barge loading tower can be controlled separately, the platform mud pipe is installed on the self-floating platform, the platform mud pipe is provided with an inlet and a plurality of outlets, the platform mud pipe inlet is connected with the self-floating mud discharge pipe of the dredging suction ship, and each outlet of the platform mud pipe is respectively connected with a corresponding rotating barge loading tower; each rotating barge loading tower comprises a barge loading tower frame and a barge loading pipe fitting, the barge loading tower frame is installed on the self-floating platform, the barge loading pipe fitting inlet is rotatably connected with the platform mud pipe in a circumferential direction, a guide fixed pulley is installed on the barge loading tower frame, a movable pulley is provided on the barge loading pipe fitting, the winch is installed on the self-floating platform, the winch is connected with the movable pulley by a steel wire rope passing through the guide fixed pulley, and controls the barge loading pipe fitting to rotate and load sand to the sand barge.

[0005] The slurry is transported from the floating mud pipe to the platform mud pipe by a suction dredger, and then transported to each rotary loading tower through the platform mud pipe, and the rotary loading tower loads sand onto the sand barge.

[0006] In the above technical solution, preferably, the barge pipe comprises a rotating sleeve, a rotating elbow and a T-shaped barge pipe, the rotating sleeve, the rotating elbow and the T-shaped barge pipe are connected to each other in sequence by bolts, and the rotating sleeve inlet is rotatably connected to the platform mud pipe in the circumferential direction. The rotating sleeve, the rotating elbow and the T-shaped barge pipe can rotate along the circumferential direction of the platform mud pipe, and the angle of the T-shaped barge pipe can be adjusted according to the size of the sand barge and the draft change to achieve uniform barge loading, reduce slurry impact, and improve sedimentation efficiency.

[0007] In the above technical solution, it is further preferred that the elbow angle of the rotating elbow is 90°, a rotating shaft is provided on the back of the rotating elbow, the axis of the rotating shaft is coaxial with the axis of the straight section of the rotating elbow inlet, and the rotating shaft is supported by the rotating elbow shaft support.

[0008] In the above technical solution, it is further preferred that the rotating sleeve is supported by a rotating sleeve support, the rotating sleeve support is coaxial with the rotating elbow shaft support, a supporting boss is provided on the outside of the rotating sleeve, the supporting boss cooperates with the groove of the rotating sleeve support, the rotating sleeve support is fixedly connected to the platform mud pipe, the rotating sleeve and the rotating sleeve support are sealed by rubber or packing, and a stainless steel covering plate is provided on the outside of the rotating sleeve at the sealing position.

[0009] In the above technical solution, it is further preferred that the inner walls of the rotating elbow and the rotating sleeve are both provided with wear-resistant linings.

[0010] In the above technical scheme, it is further preferred that the T-shaped loading pipe is composed of a longitudinal extension pipe and a transverse loading pipe, and the longitudinal extension pipe and the transverse loading pipe are L-shaped with an included angle of 120° to 150°; the transverse loading pipe and the longitudinal extension pipe are transitionally connected by a round tube, and a wear-resistant guide plate is provided inside the round tube.

[0011] In the above technical scheme, it is further preferred that a sand discharge gate and a valve are provided on the transverse loading pipe, and an arc plate is provided inside the sand discharge gate to cooperate with the inner wall of the transverse loading pipe, and the radius of the arc plate is consistent with the radius of the transverse loading pipe. When the sand discharge gate is closed, the arc plate and the inner surface of the transverse loading pipe are smooth without abnormal protrusions or depressions, and the inner wall condition of the entire pipeline is similar to that of a steel pipe, thereby reducing hydraulic losses and abnormal wear; the sand discharge gate and the valve can be remotely controlled to open and close in combination to realize loading at different positions, and there is no need to move the sand barge during the loading process.

[0012] In the above technical solution, preferably, a booster spring for providing a starting thrust for lowering the loading pipe is provided on the outside of the loading tower. The booster spring is compressed when the loading pipe is folded up, providing a starting thrust when the self-floating platform tilts and the T-shaped loading pipe cannot be lowered by its own weight.

[0013] In the above technical solution, preferably, the barge tower and the barge pipe fittings are provided with fixed eye plates, and the two ends of a spiral buckle are respectively connected to the two fixed eye plates to lock and fix the barge pipe fittings. When the barge pipe fittings are not in operation, they can be retracted to a vertical state by a winch to facilitate transportation and dispatch.

[0014] In the above technical solution, preferably, the platform mud pipe inlet is connected to the self-floating mud discharge pipe of the cutter suction vessel through an elbow at the tail of the self-floating platform, and the slurry is transported to the loading platform through the elbow.

[0015] Compared with the prior art, the present invention has the following advantages and positive effects:

[0016] (1) The present invention provides a sand-collecting and loading platform device for a dredger suction vessel. The slurry excavated by the dredger suction vessel is loaded into a sand barge via the loading platform and then transported to a construction area by the sand barge, thereby solving the problem that the dredger suction vessel cannot load sand when collecting sand in the open sea.

[0017] (2) The present invention is provided with a freely rotatable T-shaped barge loading pipe. When loading, the transverse winch can freely adjust the angle of the T-shaped barge loading pipe as the draft of the sand barge changes, thereby achieving uniform loading, reducing slurry impact, and improving sedimentation efficiency. During transportation and dispatching, the T-shaped barge loading pipe can be rotated to a vertical state, completely retracted into the self-floating platform, and locked and fixed by a spiral buckle, saving space and facilitating transportation and dispatching.

[0018] (3) The present invention provides a sand discharge gate and a valve on the transverse loading pipe of the T-shaped barge loading pipe. When loading the barge, the sand barge does not need to be moved, and sand can be loaded into different compartments by combining the opening and closing of the sand discharge gate and the valve. When the sand discharge gate is closed, the inner wall condition of the transverse sand discharge pipe is similar to that of a steel pipe, thereby reducing abnormal wear.

[0019] (4) The present invention provides a booster spring on the loading tower to provide an outward thrust to the T-shaped loading pipe when the self-floating platform tilts, thereby solving the problem that the T-shaped loading pipe cannot be lowered by its own weight in a tilted state. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 A schematic diagram of the longitudinal arrangement of a sand mining and loading platform device for a cutter suction vessel provided in an embodiment of the present invention;

[0021] Figure 2 A schematic diagram of the transverse arrangement of a sand mining and loading platform device for a cutter suction vessel provided in an embodiment of the present invention;

[0022] Figure 3 for Figure 2 A partial enlarged view of the middle A part;

[0023] Figure 4 A schematic diagram of a top view of a sand mining and loading platform device for a cutter suction vessel provided in an embodiment of the present invention;

[0024] Figure 5 A schematic diagram of a sand loading state of a sand mining and loading platform device for a cutter suction vessel provided in an embodiment of the present invention;

[0025] Figure 6 A schematic diagram of the structure of a rotary loading tower provided in an embodiment of the present invention;

[0026] Figure 7 for Figure 6 A partial enlarged view of part B in the middle;

[0027] Figure 8 A side view of a rotary loading tower provided in an embodiment of the present invention;

[0028] Fig. 9 A schematic diagram of the structure of a rotary sleeve and a rotary elbow provided in an embodiment of the present invention;

[0029] Fig.10 for Fig. 9 A partial enlarged view of the middle C part;

[0030] Fig.11 A schematic diagram of the structure of a T-shaped docking pipe provided in an embodiment of the present invention;

[0031] Fig.12 A side view of a T-shaped docking pipe provided in an embodiment of the present invention;

[0032] Fig.13 A schematic diagram of a T-shaped docking pipe in a vertical state provided in an embodiment of the present invention.

[0033] Fig.14 for Fig.13 A partial enlarged view of the middle D part;

[0034] Fig.15 A schematic diagram of the tilted state of a T-shaped docking pipe provided in an embodiment of the present invention.

[0035] In the figure: 1. Self-floating platform; 2. Elbow; 3. Platform mud pipe; 4. Valve 1; 5. Rotary barge tower; 6. Winch; 7. Wire rope; 8. Turnbuckle; 9. Self-floating mud pipe; 10. Sand barge; 11. Guide fixed pulley; 12. Movable pulley; 13. Boost spring; 14. Fixed eye plate; 15. Wear-resistant lining; 5-1. Rotary elbow; 5-2. Rotary sleeve; 5-3 Rotary elbow shaft support; 5-4. Rotary sleeve support; 5-5. T-type barge pipe; 5-6. Barge tower; 5-7. Rubber or packing; 5-1-1. Rotary shaft; 5-2-1. Support boss; 5-2-2. Stainless steel cover plate; 5-4-1. Rotary sleeve support groove; 5-5-1, transverse loading pipe; 5-5-2, longitudinal extension pipe; 5-5-3, square pipe; 5-5-4, sand discharge gate; 5-5-5, valve 2; 5-5-3-1, guide plate. DETAILED DESCRIPTION

[0036] In order to further understand the content, features and effects of the present invention, the following embodiments are given as examples and described in detail with reference to the accompanying drawings:

[0037] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "one", "two", etc. are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features.

[0038] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0039] Example

[0040] like Figure 1 , Figure 2 , Figure 4 , Figure 5 As shown, an embodiment of the present invention provides a sand mining and loading platform device for a dredger suction ship, comprising a self-floating platform 1, a platform mud pipe 3, a rotary loading tower 5, a winch 6 and a sand barge 10. The platform mud pipe 3 is installed on the self-floating platform 1. The platform mud pipe 3 is provided with an inlet and multiple outlets. The inlet of the platform mud pipe 3 is connected to the self-floating mud discharge pipe 9 of the dredger suction ship through an elbow 2 at the tail of the self-floating platform 1, and the slurry is transported to the self-floating platform 1 through the elbow. The left and right sides of the self-floating platform 1 are respectively provided with multiple rotary loading towers 5, each of which can be controlled separately. Each outlet of the platform mud pipe 3 is connected to the corresponding rotary loading tower 5, and each outlet branch of the platform mud pipe 3 is provided with a valve 4. The slurry is transported to the platform mud pipe 3 through the self-floating mud discharge pipe 9 of the dredger suction ship, and then transported to each rotary loading tower 5 through the platform mud pipe 3, and the sand barge 10 is loaded with sand by the rotary loading tower 5.

[0041] like Figures 6 to 10As shown, each of the rotating loading towers 5 includes a loading tower frame 5-6 and a loading pipe. The loading tower frame 5-6 is installed on the self-floating platform 1. The loading pipe includes a rotating sleeve 5-2, a rotating elbow 5-1 and a T-shaped loading pipe 5-5. The rotating sleeve 5-2, the rotating elbow 5-1 and the T-shaped loading pipe 5-5 are connected to each other in sequence by bolts. The inlet of the rotating sleeve 5-2 is rotatably connected to the platform mud pipe 3 in the circumferential direction. The rotating sleeve 5-2, the rotating elbow 5-1 and the T-shaped loading pipe 5-5 can rotate along the circumferential direction of the platform mud pipe 3. Figure 5 As shown, the barge loading tower 5-6 is provided with a guide fixed pulley 11, the T-shaped barge loading pipe 5-5 is provided with a movable pulley 12, the winch is installed on the self-floating platform 1, and the winch is connected to the movable pulley 12 through a steel wire rope wound around the guide fixed pulley 11 to control the rotation of the barge loading pipe to load sand to the sand barge 10. The angle of the T-shaped barge loading pipe 5-5 is adjusted according to the size and draft of the sand barge 10 to achieve uniform loading, reduce the impact of slurry, and improve the sedimentation efficiency. Figure 5 The left sand barge 10 is in an empty state, and the draft of the right sand barge 10 gradually deepens as the amount of sand loaded increases, and the turning angle of the T-shaped barge pipe 5-5 gradually increases.

[0042] Preferably, the elbow angle of the rotating elbow 5-1 is 90°, and a rotating shaft 5-1-1 is provided on the back of the rotating elbow 5-1. The axis of the rotating shaft 5-1-1 is coaxial with the axis of the straight section of the inlet of the rotating elbow 5-1, and the rotating shaft 5-1-1 is supported by a rotating elbow shaft support 5-3. The rotating sleeve 5-2 is supported by a rotating sleeve support 5-4, and the rotating sleeve support 5-4 is coaxial with the rotating elbow shaft support 5-3. A supporting boss 5-2-1 is provided on the outer side of the rotating sleeve 5-2, and the supporting boss 5-2-1 cooperates with a rotating sleeve support groove 5-4-1. The rotating sleeve support 5-4 is fixedly connected to the platform mud pipe 3, and the rotating sleeve 5-2, the rotating elbow 5-1 and the T-shaped barge pipe 5-5 can rotate freely along the circumferential direction. Since the fluid flows in the pipeline, the rotating parts need to be sealed relative to the fixed parts. The rotating sleeve 5-2 and the rotating sleeve support 5-4 are sealed by rubber or packing 5-7, and the outer side of the rotating sleeve 5-2 is provided with a stainless steel covering plate 5-2-2 at the sealing position. The rotating elbow 5-1 and the rotating sleeve 5-2 are both force-bearing parts. In order to prevent the mud and sand from wearing the inner wall of the pipe and affecting the force of the parts, the inner walls of the rotating elbow 5-1 and the rotating sleeve 5-2 are provided with wear-resistant lining plates 15. Each wear-resistant lining plate 15 is welded and fixed to the rotating elbow 5-1 and the rotating sleeve 5-2 body respectively to improve the service life of the parts.

[0043] like Fig.11 and Fig.12As shown, the T-shaped loading pipe 5-5 is composed of a longitudinal extension pipe 5-5-2 and a transverse loading pipe 5-5-1. The longitudinal extension pipe 5-5-2 and the transverse loading pipe 5-5-1 are arranged in an L shape with an angle of 120° to 150°; the transverse loading pipe 5-5-1 and the longitudinal extension pipe 5-5-2 are transitionally connected by a round tube, and a wear-resistant guide plate is arranged inside the round tube. The transverse loading pipe 5-5-1 is provided with a controllable sand discharge gate 5-5-4 and a valve 2 5-5-5. The sand discharge gate 5-5-4 is provided with an arc plate inside which cooperates with the inner wall of the transverse loading pipe 5-5-1. The radius of the arc plate is consistent with the radius of the transverse loading pipe 5-5-1. When the sand discharge gate 5-5-4 is closed, the arc plate and the inner surface of the transverse loading pipe 5-5-1 are smooth and free of abnormal protrusions or depressions. The inner wall condition of the entire pipeline is similar to that of a steel pipe, thereby reducing hydraulic losses and abnormal wear. The sand discharge gate 5-5-4 and the valve 2 5-5-5 can be opened and closed in combination to realize loading at different positions. The sand barge 10 does not need to be moved during the loading process.

[0044] like Figures 13-15 As shown, the L-shaped design of the T-shaped barge pipe 5-5 makes the center of gravity of the T-shaped barge pipe be located outside the rotation center. When the self-floating platform 1 is in a positive floating state, the T-shaped barge pipe can be lowered by gravity. However, when the self-floating platform 1 is tilted and the center of gravity of the T-shaped barge pipe is inside the rotation center, the T-shaped barge pipe 5-5 cannot be lowered by its own weight. Therefore, a booster spring 13 is provided on the outside of the barge tower 5-6 to provide a starting thrust when the self-floating platform 1 is tilted and the T-shaped barge pipe 5-5 cannot be lowered by its own weight. When the T-shaped barge pipe 5-5 is retracted, the booster spring 13 is compressed. The restoring force of the booster spring 13 provides an outward thrust for the T-shaped barge pipe 5-5, so that the T-shaped barge pipe 5-5 rotates around the rotation axis.

[0045] like Figure 3 As shown, the barge pipe fittings can be retracted to a vertical state by the winch 6 when not in use. The barge tower 5-6 and the longitudinal extension pipe 5-5-2 are both provided with fixed eye plates, and the two ends of a spiral buckle are respectively connected to the two fixed eye plates to lock and fix the barge pipe fittings for easy transportation and dispatch.

[0046] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any form. Any simple modification, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention are within the scope of the technical solution of the present invention.

Claims

1. A sand mining and loading platform device for a cutter suction ship, characterized in that: It comprises a self-floating platform, a platform mud pipe, a rotary barge loading tower, a winch and a sand barge. The self-floating platform is respectively provided with a plurality of rotary barge loading towers on the left and right sides, and each rotary barge loading tower can be controlled separately. The platform mud pipe is installed on the self-floating platform. The platform mud pipe is provided with an inlet and a plurality of outlets. The inlet of the platform mud pipe is connected with the self-floating mud discharge pipe of the cutter suction vessel, and each outlet of the platform mud pipe is respectively connected with the corresponding rotary barge loading tower; each rotary barge loading tower comprises a barge loading tower frame and a barge loading pipe fitting, the barge loading tower frame is installed on the self-floating platform, the inlet of the barge loading pipe fitting is rotatably connected with the platform mud pipe in the circumferential direction, a guide fixed pulley is installed on the barge loading tower frame, a movable pulley is provided on the barge loading pipe fitting, the winch is installed on the self-floating platform, the winch is connected with the movable pulley through a steel wire rope wound around the guide fixed pulley, and controls the barge loading pipe fitting to rotate and load sand to the sand barge; a booster spring for providing a starting thrust for lowering the barge loading pipe fitting is provided on the outer side of the barge loading tower frame, and the booster spring is compressed when the barge loading pipe fitting is retracted; The barge pipe fittings include a rotating sleeve, a rotating elbow and a T-shaped barge pipe, wherein the rotating sleeve, the rotating elbow and the T-shaped barge pipe are connected to each other in sequence by bolts, and the rotating sleeve inlet is rotatably connected to the platform mud pipe in the circumferential direction; The T-shaped loading pipe is composed of a longitudinal extension pipe and a transverse loading pipe, the longitudinal extension pipe and the transverse loading pipe are arranged in an L shape, with an angle of 120° to 150°; the transverse loading pipe and the longitudinal extension pipe are transitionally connected by a round pipe, and a wear-resistant guide plate is arranged inside the round pipe; The transverse loading pipe is provided with a sand discharge gate and a valve. An arc plate is provided inside the sand discharge gate and cooperates with the inner wall of the transverse loading pipe. The radius of the arc plate is consistent with the radius of the transverse loading pipe. When the sand discharge gate is closed, the arc plate and the inner surface of the transverse loading pipe are smooth and free of abnormal protrusions or depressions. The sand discharge gate and the valve can be remotely controlled to be opened and closed in combination. When loading a barge, the sand barge does not need to be moved and sand can be loaded into different compartments by combining the opening and closing of the sand discharge gate and the valve.

2. The sand mining and loading platform device for a cutter suction ship according to claim 1 is characterized in that: The elbow angle of the rotating elbow is 90°, a rotating shaft is provided on the back of the rotating elbow, the axis of the rotating shaft is coaxial with the axis of the straight section of the circular pipe at the inlet of the rotating elbow, and the rotating shaft is supported by the rotating elbow shaft support.

3. The sand mining and loading platform device for a cutter suction ship according to claim 2 is characterized in that: The rotating sleeve is supported by a rotating sleeve support, the rotating sleeve support is coaxial with the rotating elbow shaft support, a supporting boss is provided on the outside of the rotating sleeve, the supporting boss cooperates with the groove of the rotating sleeve support, the rotating sleeve support is fixedly connected to the platform mud pipe, the rotating sleeve and the rotating sleeve support are sealed by rubber or packing, and a stainless steel covering plate is provided on the outside of the rotating sleeve at the sealing position.

4. The sand mining and loading platform device for a cutter suction ship according to any one of claims 1 to 3, characterized in that: The inner walls of the rotating elbow and the rotating sleeve are both provided with wear-resistant lining plates.

5. The sand mining and loading platform device for a cutter suction ship according to claim 1 is characterized in that: The barge tower and the barge pipe fittings are both provided with fixed eye plates. The barge pipe fittings can be retracted to a vertical state by a winch when not in operation. The two ends of a spiral buckle are respectively connected to the two fixed eye plates to lock and fix the barge pipe fittings.

6. The sand mining and loading platform device for a cutter suction ship according to claim 1, characterized in that: The platform mud pipe inlet is connected to the self-floating mud discharge pipe of the cutter suction vessel through an elbow at the tail of the self-floating platform.

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