An environmentally friendly cutter suction dredger with a rake suction dredging machine

Abstract

The present invention relates to an environmentally friendly suction dredger rake suction desilting machine, comprising a curved pipe, a fixed body, a movable cover, a movable cover adjustment cylinder, a horizontal scraper, a connecting seat, a posture adjustment cylinder and a bridge flange base; the two ends of the curved pipe are respectively connected to the bridge mud discharge pipe and the fixed body, the fixed body is hinged to the movable cover, the movable cover can rotate a certain angle relative to the fixed body, the movable cover is hinged to the horizontal scraper, the connecting seat has three hinge points, one hinge point is hinged to the horizontal scraper, one hinge point is hinged to the fixed body, and one hinge point is hinged to the telescopic rod end of the movable cover adjustment cylinder; the cylinder end of the movable cover adjustment cylinder is hinged to the fixed body, the bottom of the horizontal scraper is kept parallel to the bottom of the fixed body in any posture, and the bottom of the fixed body is always parallel to the horizontal plane; the two ends of the posture adjustment cylinder are respectively hinged to the bridge flange base and the fixed body. The present invention sucks in the dredged sludge by the left and right lateral movement of the suction dredger, and ensures the flatness, so as to achieve high-concentration dredging.

Description

Technical Field

[0001] The invention belongs to the technical field of dredging, and in particular relates to an environmentally friendly cutter suction dredger with a rake suction dredging machine. Background Art

[0002] In recent years, with the continuous enhancement of national environmental awareness, the environmental protection requirements of traditional dredging projects have become increasingly higher, and the construction soil has become more complex, especially the requirements for dredging of polluted sediments have become more and more stringent. The main indicators of environmental dredging are reflected in two aspects: one is the secondary pollution of water bodies caused by dredging, and the other is the flatness of dredged sediments. Ordinary cutters of environmental dredgers are difficult to control these two indicators.

[0003] Existing equipment such as environmentally friendly cutters or environmentally friendly grabs can achieve high-concentration dredging, but the flatness of the dredged sludge cannot be controlled, and the productivity of some equipment cannot meet the production requirements of the sludge treatment project. For the silty polluted sludge that is easier to dredge, since the equipment does not need to have a large digging force, it can be directly sucked in through a mud pump, thereby reducing the equipment operation cost. At this time, only the dredging equipment at the bottom of the bridge is needed to continuously supply the sucked mud. Therefore, it is urgent to design a dredging equipment for silty soil that will not cause secondary pollution of the water body and ensure the flatness of the dredged sludge. Summary of the invention

[0004] In view of the problems existing in the prior art, the present invention provides an environmentally friendly cutter suction dredger with a rake suction dredging machine which can dredge muddy bottom sludge with high flatness and high concentration.

[0005] The present invention is implemented as follows: an environmentally friendly cutter suction dredger rake suction dredging machine comprises a bent pipe, a fixed body, a movable cover, a movable cover adjustment cylinder, a horizontal scraper, a connecting seat, a posture adjustment cylinder and a bridge flange base;

[0006] The two ends of the curved pipe are respectively fixedly connected to one end of the bridge frame mud discharge pipe and one end of the fixed body, the other end of the fixed body is hinged to one end of the movable cover, the movable cover can rotate at a certain angle relative to the fixed body, the interior of the fixed body is a cavity structure that is conducive to mud flow, the interior of the movable cover is a cavity structure for mud collection and mixing, the other end of the movable cover is hinged to one end of the horizontal scraper, the connecting seat has three hinge points, one hinge point is hinged to the other end of the horizontal scraper, one hinge point is hinged to the fixed body, and one hinge point is hinged to the telescopic rod end of the movable cover adjustment cylinder;

[0007] The cylinder end of the movable cover adjustment cylinder is hinged with the fixed body, and the movable cover adjustment cylinder is telescopically driven to drive the connecting seat to drive the horizontal scraper to move and then drive the movable cover to rotate relative to the fixed body to adjust the dredging thickness. The bottom of the horizontal scraper is parallel to the bottom of the fixed body in any posture, and the bottom of the fixed body is always parallel to the horizontal plane;

[0008] The cylinder end of the posture adjustment cylinder is hinged to the bridge flange base, and the telescopic rod end is hinged to the fixed body. The posture adjustment cylinder telescopically adjusts the working posture of the fixed body, the movable cover and the horizontal scraper, so that the bottom of the fixed body and the horizontal scraper are always in close contact with the mud surface; the bridge flange base is fixedly connected to the bridge flange.

[0009] In the above technical solution, preferably, the fixed body includes a round square tube and a fixed cover, the round tube mouth end of the round square tube is fixedly connected to the bent tube, the square tube mouth end of the round square tube is fixedly connected to one end of the fixed cover, the other end of the fixed cover is hinged to the movable cover, the bottom of the fixed cover is the bottom of the fixed body, the movable cover and the fixed cover cooperate with each other and the top surfaces of both are arc-shaped plate structures.

[0010] In the above technical solution, it is further preferred that the maximum angle at which the movable cover can rotate relative to the fixed cover is 70°, and the angle between the center line of the celestial square tube and the horizontal line is 18°.

[0011] In the above technical solution, preferably, a fixed body connecting ear plate is fixed to the fixed body on the side close to the bridge flange base, and the fixed body connecting ear plate is hinged to the bridge flange base.

[0012] In the above technical solution, preferably, a bend pipe connecting ear plate is fixed to the side of the bend pipe, and the bend pipe connecting ear plate is hinged to the bridge flange base.

[0013] In the above technical solution, preferably, the elbow is connected to the bridge mud discharge pipe through a rubber tube, the nominal diameter of the elbow is DN450mm, and the elbow angle is 90°.

[0014] In the above technical solution, preferably, the fixed cover is provided with a fixed body cutting edge at the bottom of one end close to the horizontal scraper side.

[0015] In the above technical solution, preferably, the horizontal scraper is provided with a horizontal scraper cutting edge at the bottom of one end close to the fixed body side.

[0016] In the above technical solution, preferably, the movable cover adjusting cylinder is equipped with a displacement sensor 1 for detecting the dredging thickness of the machine, and the posture adjusting cylinder is equipped with a displacement sensor 2 for detecting the posture of the machine, and the movable cover adjusting cylinder and the posture adjusting cylinder are independently controlled.

[0017] Compared with the prior art, the present invention has the following advantages and positive effects:

[0018] The environmentally friendly cutter suction dredger and rake suction dredging machine of the present invention adopts a brand-new technical solution. Compared with the prior art, the present invention does not require power equipment, and only relies on the pulling force of the transverse winch when the ship moves left and right to cut the bottom mud, and the mud pump directly sucks in the mud for dredging the silt, thereby reducing the equipment operation cost; the thickness of the cut mud is controlled by adjusting the machine posture and the height of the horizontal scraper through the oil cylinder to adapt to different digging depth requirements and production requirements; the bottom of the fixed body and the bottom of the horizontal scraper are tightly fitted with the mud surface to ensure the flatness of the dredged bottom mud, reduce the entry of excess water into its cavity, realize high-concentration dredging, accurately control the amount of sucked mud, meet the requirements of the bottom mud treatment project for the required amount of mud, reduce the secondary pollution of the water body, and apply it to construction production, which will bring huge economic benefits. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 2 is a schematic structural diagram of an environmentally friendly cutter suction dredger trailing suction dredging machine provided by an embodiment of the present invention;

[0020] Figure 2 This is a diagram of the construction state of the trailing suction dredging machine of the environmentally friendly cutter suction dredger provided by the embodiment of the present invention when the ship is moving left transversely;

[0021] Figure 3 The invention discloses a construction state diagram of a trailing suction dredger of an environmentally friendly cutter suction dredger when the vessel is moving right transversely.

[0022] In the figure: 1. elbow; 2. fixed body; 21. round and square pipe; 22. fixed cover; 23. fixed body cutting edge; 3. movable cover adjustment cylinder; 4. movable cover; 5. horizontal scraper; 51. horizontal scraper cutting edge; 6. connecting seat; 7. fixed body connecting ear plate; 8. posture adjustment cylinder; 9. bridge flange base; 10. elbow connecting ear plate; 11. bottom mud. DETAILED DESCRIPTION

[0023] 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:

[0024] 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.

[0025] 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.

[0026] Example

[0027] like Figures 1 to 3 As shown, an embodiment of the present invention provides an environmentally friendly cutter suction dredger and a drag suction dredging machine, comprising a bent pipe 1, a fixed body 2, a movable cover 4, a movable cover adjustment cylinder 3, a horizontal scraper 5, a connecting seat 6, a posture adjustment cylinder 8 and a bridge flange base 9.

[0028] The two ends of the curved pipe 1 are respectively fixedly connected with the bridge frame mud discharge pipe and the fixed body 2 by bolts.

[0029] The fixed body 2 includes a round square pipe 21 and a fixed cover 22. The round pipe mouth end of the round square pipe 21 is welded with a flange and fixedly connected to the elbow 1 by bolts. The square pipe mouth end of the round square pipe 21 is fixedly connected to one end of the fixed cover 22. The bottom sides of the other end of the fixed cover 22 are hinged to the bottom of the movable cover 4 by a pin shaft. The movable cover 4 can rotate a certain angle relative to the fixed cover 22. The interior of the fixed body 2 is a cavity structure that is conducive to the flow of mud. The interior of the movable cover 4 is a cavity structure for collecting and mixing mud. The movable cover 4 and the fixed cover 22 are matched and the top surfaces of both are arc-shaped plate structures, which is convenient for the movable cover to rotate freely. The fixed body 2 is welded by steel plates, and the movable cover 4 is also welded by steel plates, which is easy to manufacture; the top surface of the movable cover 4 is an arc-shaped plate, which is conducive to mud mixing and transportation, and the two side surfaces are vertical plates; the top surface of the fixed cover 22 is also an arc-shaped plate, the two side surfaces are vertical plates, and the bottom surface is a flat plate.

[0030] One end of the top of the movable cover 4 is hinged to the bottom of the horizontal scraper 5 through a pin shaft, and the connecting seat 6 has three hinge points, one hinge point is hinged to the top of the horizontal scraper 5 through a pin shaft, one hinge point is hinged to the fixed body 2 through a pin shaft, and one hinge point is hinged to the telescopic rod end of the movable cover adjusting cylinder 3 through a pin shaft.

[0031] The movable cover adjusting cylinder 3 is located above the fixed body 2. The cylinder end of the movable cover adjusting cylinder 3 is hinged to the fixed body 2 through a pin shaft. The movable cover adjusting cylinder 3 is telescopically driven to drive the connecting seat 6 to drive the horizontal scraper 5 to move and then drive the movable cover 4 to rotate a certain angle relative to the fixed cover 22 to adjust the dredging thickness. According to the parallelogram principle, the bottom of the horizontal scraper 5 is always parallel to the bottom of the fixed cover 22 in any posture, and the bottom of the fixed cover 22 is always parallel to the horizontal plane. The dredging thickness is strictly controlled to ensure the dredging accuracy, reduce the entry of excess water into the movable cover, and improve the dredging concentration.

[0032] The cylinder end of the posture adjustment cylinder 8 is hinged to the bridge flange base 9, and the telescopic rod end is hinged to the fixed body 2. The posture adjustment cylinder 8 telescopes and adjusts the working posture of the fixed body, the movable cover and the horizontal scraper, so that the bottom of the fixed body 2 and the horizontal scraper 5 are always in close contact with the mud surface and maintained in a horizontal state; the bridge flange base 9 and the bridge flange are fixedly connected into a whole by bolts, which are used to support the main part of the machine to ensure the reliable operation of the entire machine.

[0033] Preferably, the maximum angle at which the movable cover 4 can rotate relative to the fixed cover 22 is 70°, and the angle between the center line of the celestial tube 21 and the horizontal line is 18°.

[0034] Preferably, the fixed body 2 is fixedly welded with a fixed body connecting ear plate 7 near the bridge flange base side, and the fixed body connecting ear plate 7 is hinged to the bridge flange base 9 through a pin shaft to ensure that the fixed body can rotate smoothly relative to the bridge flange base. The side of the elbow 1 is fixedly welded with an elbow connecting ear plate 10, and the elbow connecting ear plate 10 is hinged to the bridge flange base 9 through a pin shaft to ensure that the elbow can rotate smoothly relative to the bridge flange base. The fixed body and the elbow are supported by the bridge flange base to ensure that the entire machine can work reliably.

[0035] Preferably, the elbow 1 is connected to the bridge mud discharge pipe through a rubber tube, which makes it easier for the elbow to rotate relative to the bridge flange base. The nominal diameter of the elbow 1 is DN450mm, and the bending angle is 90°.

[0036] Preferably, the fixed cover 22 is provided with a fixed body cutting edge 23 at the bottom near one end of the horizontal scraper 5, and the horizontal scraper 5 is provided with a horizontal scraper cutting edge 51 at the bottom near one end of the fixed body 2. When dredging, the bottom of the fixed cover 22 and the bottom of the horizontal scraper 5 are close to the mud surface and are always parallel to the horizontal plane to ensure the dredging flatness. The vertical height between the bottom of the fixed cover 22 and the bottom of the horizontal scraper 5 is the dredging thickness; when the ship moves to the left, the cutting edge at the bottom of the fixed body 2 is responsible for cutting the mud, and when the ship moves to the right, the cutting edge at the bottom of the horizontal scraper 5 is responsible for cutting the mud.

[0037] Preferably, the movable cover adjustment cylinder 3 is equipped with a displacement sensor 1 for detecting the dredging thickness of the machine, which is used to indicate the posture of the movable cover and the height of the horizontal scraper, so that the control system can accurately control the dredging thickness. The posture adjustment cylinder 8 is equipped with a displacement sensor 2 for detecting the posture of the machine, which is used to indicate the posture of the fixed body, the movable cover and the horizontal scraper, so that the control system can accurately control the dredging flatness and depth. The movable cover adjustment cylinder 3 and the posture adjustment cylinder 8 are independently controlled, and the space is in a cross state without interfering with each other.

[0038] The specific working principle of the present invention is as follows:

[0039] When the dredging depth is determined, the control system sends a command to the attitude adjustment cylinder 8 to keep the bottom of the fixed cover 22 in a horizontal state and close to the mud surface. The movable cover adjustment cylinder 3 adjusts the horizontal scraper 5 to a certain height to determine the thickness of the mud cut by the machine. Relying on the pulling force of the dredger's left and right lateral movement, the cut mud is pushed into the movable cover 4 for mixing, and then the mixed mud is transported to the landfill or treatment site through the fixed body 2, the elbow 1 and the mud discharge pipe on the ship through the suction of the mud pump in the cabin. When the ship moves left and right, the fixed body 2 and the horizontal scraper 5 cut the mud with their cutting edges respectively.

[0040] 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. An environmentally friendly cutter suction dredger trailing suction dredging machine, characterized in that: It includes a bent pipe, a fixed body, a movable cover, a movable cover adjustment cylinder, a horizontal scraper, a connecting seat, a posture adjustment cylinder and a bridge flange base; The two ends of the curved pipe are respectively fixedly connected to one end of the bridge frame mud discharge pipe and one end of the fixed body, the other end of the fixed body is hinged to one end of the movable cover, the movable cover can rotate at a certain angle relative to the fixed body, the interior of the fixed body is a cavity structure that is conducive to mud flow, the interior of the movable cover is a cavity structure for mud collection and mixing, the other end of the movable cover is hinged to one end of the horizontal scraper, the connecting seat has three hinge points, one hinge point is hinged to the other end of the horizontal scraper, one hinge point is hinged to the fixed body, and one hinge point is hinged to the telescopic rod end of the movable cover adjustment cylinder; The cylinder end of the movable cover adjustment cylinder is hinged with the fixed body, and the movable cover adjustment cylinder is telescopically driven to drive the connecting seat to drive the horizontal scraper to move and then drive the movable cover to rotate relative to the fixed body to adjust the dredging thickness. The bottom of the horizontal scraper is parallel to the bottom of the fixed body in any posture, and the bottom of the fixed body is always parallel to the horizontal plane; The cylinder end of the posture adjustment cylinder is hinged to the bridge flange base, and the telescopic rod end is hinged to the fixed body. The posture adjustment cylinder telescopically adjusts the working posture of the fixed body, the movable cover and the horizontal scraper, so that the bottom of the fixed body and the horizontal scraper is always in close contact with the mud surface; the bridge flange base is fixedly connected to the bridge flange; The fixed body comprises a round square tube and a fixed cover, the round tube mouth end of the round square tube is fixedly connected to the curved tube, the square tube mouth end of the round square tube is fixedly connected to one end of the fixed cover, the other end of the fixed cover is hinged to the movable cover, the bottom of the fixed cover is the bottom of the fixed body, the movable cover and the fixed cover are matched, and the top surfaces of both are arc-shaped plate structures; The movable cover adjusting cylinder is equipped with a displacement sensor 1 for detecting the dredging thickness of the machine, and the posture adjusting cylinder is equipped with a displacement sensor 2 for detecting the posture of the machine. The movable cover adjusting cylinder and the posture adjusting cylinder are independently controlled.

2. The environmentally friendly cutter suction dredger trailing suction dredging machine according to claim 1 is characterized in that: The maximum angle at which the movable cover can rotate relative to the fixed cover is 70°, and the angle between the center line of the celestial-square tube and the horizontal line is 18°.

3. The environmentally friendly cutter suction dredger trailing suction dredging machine according to claim 1 is characterized in that: The fixed body is fixed with a fixed body connecting ear plate on the side close to the bridge frame flange base, and the fixed body connecting ear plate is hinged to the bridge frame flange base.

4. The environmentally friendly cutter suction dredger trailing suction dredging machine according to claim 1 is characterized in that: A bend pipe connecting ear plate is fixed on the side of the bend pipe, and the bend pipe connecting ear plate is hinged to the bridge flange base.

5. The environmentally friendly cutter suction dredger trailing suction dredging machine according to claim 1 is characterized in that: The elbow is connected to the bridge mud discharge pipe through a rubber tube. The nominal diameter of the elbow is DN450mm and the elbow angle is 90°.

6. The environmentally friendly cutter suction dredger trailing suction dredging machine according to claim 1, characterized in that: The fixed cover is provided with a fixed body cutting edge at the bottom of one end close to the horizontal scraper side.

7. The environmentally friendly cutter suction dredger trailing suction dredging machine according to claim 1 is characterized in that: The horizontal scraper is provided with a horizontal scraper cutting edge at the bottom of one end close to the fixed body.

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