A dredging device for a water conservancy pumping station

Abstract

The application discloses a dredging device for a water conservancy pump station, which comprises a dredging ship, two groups of power assemblies arranged on the front and back of the dredging ship, a silt digging assembly fixedly arranged on the left side of the upper surface of the dredging ship, a silt conveying belt fixedly arranged on the right side of the upper surface of the dredging ship, a silt separating assembly fixedly arranged above the silt conveying belt, a silt transport vehicle arranged outside the other end of the silt conveying belt, a water pump fixedly arranged on the upper surface of the dredging ship, an input pipe of the water pump arranged below a water body, a spraying assembly and a water injection pipe fixedly arranged on the output pipe above the water pump, the spraying assembly arranged above the silt separating assembly, and the water injection pipe arranged on the right side of the silt separating assembly.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of environmental protection equipment, in particular to a dredging device for a water conservancy pumping station. BACKGROUND

[0002] Silt is one of the internal source factors of river pollution. Organic matter in silt decomposes under the action of bacteria, which reduces the dissolved oxygen concentration in water, easily causes water body to be anoxic, affects the survival of other aquatic organisms in the water body, and thus causes the ecological environment of the water body to be destroyed. Meanwhile, silt produces hydrogen sulfide, phosphine and other foul-smelling gases, making the river water black and smelly. In addition, the deposition of silt makes the water body shallow, reduces the overall water storage capacity of the water body, and in severe cases, blocks the river channel, causes water flow to change course, and causes drought and flood disasters, which seriously threatens the survival of people along the river.

[0003] Dredging can permanently remove pollutants in bottom mud, effectively reduce internal source pollution, and has a good effect on improving river water quality, but the method has a large amount of engineering, and the dredging intensity is too large, which will bring a large amount of benthic organisms and aquatic plants out of the water body, destroying the original ecological system of the water body.

[0004] Therefore, it is necessary to provide a dredging device for a water conservancy pumping station to solve the above problems. SUMMARY

[0005] To achieve the above-mentioned purpose, the present application provides the following technical scheme: a dredging device for a water conservancy pumping station, comprising:

[0006] A dredging ship is provided with two groups of power assemblies at the front and rear;

[0007] A silt digging assembly is fixedly assembled on the left side of the upper surface of the dredging ship;

[0008] A silt conveying belt is fixedly assembled on the right side of the upper surface of the dredging ship, a silt separating assembly is fixedly assembled above the silt conveying belt, and a silt transport vehicle is externally connected to the lower side of the other end of the silt conveying belt;

[0009] A water pump is fixedly assembled on the upper surface of the dredging ship, an input pipe of the water pump is placed below the water body, an output pipe of the water pump is fixedly assembled above the water pump, a spraying assembly and a water injection pipe are fixedly assembled on the output pipe, the spraying assembly is placed above the silt separating assembly, and the water injection pipe is placed on the right side of the silt separating assembly.

[0010] Further, as a preferred, the silt digging assembly comprises:

[0011] Two groups of support seats are symmetrically arranged and fixedly assembled on the upper surface of the dredging ship, a conveying pipe is rotatably assembled in the middle of each group of support seats, and a screw conveyor is coaxially arranged in the conveying pipe;

[0012] The silt transfer bin is fixedly assembled on the left upper end of the conveying pipe, a silt collector is rotatably connected to the left side of the silt transfer bin, and the lower surface of the silt collector is parallel to the upper surface of the dredging ship.

[0013] The driving motor is fixedly assembled on the right upper end of the conveying pipe, and the output shaft of the driving motor is fixedly connected to the screw conveyor.

[0014] Further, as a preferred, a hydraulic cylinder is rotatably assembled between the two groups of support seats, and the other end of the hydraulic cylinder is rotatably assembled below the conveying pipe.

[0015] Further, as a preferred, an elastic connecting pipe is fixedly assembled on the right lower end of the conveying pipe, a fixed silt discharge port is fixedly assembled below the elastic connecting pipe, and the fixed silt discharge port is fixedly assembled on the upper surface of the silt separation assembly.

[0016] Further, as a preferred, an anti-blocking conveying belt is arranged on the inner wall below the right end of the silt collector, and a plurality of telescopic plates are arranged on the surface of the anti-blocking conveying belt.

[0017] Further, as a preferred, the silt separation assembly comprises:

[0018] A separation shell is fixedly assembled above the silt conveying belt, a desiltation bin and a biological separation bin are arranged in the separation shell, and the desiltation bin is located directly above the silt conveying belt input port.

[0019] Further, as a preferred, a chain net conveying belt is fixedly assembled above the desiltation bin, a vibration motor is fixedly assembled on the chain net conveying belt, a fixed silt discharge port is arranged on the left upper side of the chain net conveying belt, and a spraying assembly is fixedly arranged on the right upper side of the chain net conveying belt.

[0020] Further, as a preferred, a plurality of screening fans are embedded on the right inner wall of the biological separation bin, and a motile organism free door is embedded on the back inner wall of the biological separation bin, and a driving rod is arranged on the motile organism free door.

[0021] A rectangular groove is formed on the left side of the bottom of the biological separation bin, and a motile organism discharge assembly is rotatably assembled below the rectangular groove.

[0022] Further, as a preferred, an aquatic plant collection basket is fixedly assembled on the right side of the separation shell, and a plurality of guardrails are fixedly assembled on the upper side of the right side wall of the separation shell.

[0023] Compared with the prior art, the silt removal device of the water conservancy pump station has the following beneficial effects:

[0024] In the present application, the sludge digging assembly can select appropriate digging angle and sludge collector according to the water depth and sludge thickness of the dredging pump station, and the sludge separation assembly and the spraying assembly can classify the dredged sludge mixture, so that the separated aquatic organisms can be discriminatively returned to the water body, thereby maintaining the ecological stability of the pump station, and the dredged sludge does not contain other substances and contains rich N, P and other nutrient elements, which can be discharged to suitable farmland through the external sludge transport vehicle to improve the soil nutrient structure and increase the crop yield, and the other substances separated from the sludge are treated according to their properties, so that the ecological stability of the pump station is maintained while the pump station is cleaned, and the waste is reasonably utilized to save resources and realize sustainable development, and when the sludge content of the bottom layer of the pump station is small, the sludge of the sludge conveying belt can be directly discharged to the sidewalk trees beside the pump station, so that the dredging steps are simplified and the dredging efficiency is improved. BRIEF DESCRIPTION OF DRAWINGS

[0025] Fig. 1 It is a structure schematic view of a dredging device of a water conservancy pump station.

[0026] Fig. 2 It is a structure schematic view of a sludge digging assembly of a dredging device of a water conservancy pump station.

[0027] Fig. 3 It is a structure schematic view of a sludge separation assembly of a dredging device of a water conservancy pump station.

[0028] In the figure: 1, dredging ship; 2, power assembly; 3, sludge digging assembly; 4, sludge separation assembly; 5, sludge conveying belt; 6, water pump; 7, spraying assembly; 8, water injection pipe; 31, support seat; 32, conveying pipe; 33, hydraulic cylinder; 34, screw conveyor; 35, sludge transfer bin; 36, sludge collector; 37, driving motor; 38, elastic connecting pipe; 39, fixed sludge discharge port; 310, anti-blocking conveying belt; 311, telescopic plate; 41, separation shell; 42, desilting bin; 43, biological separation bin; 44, chain net conveying belt; 45, oscillation motor; 46, aquatic plant collection basket; 47, motile organism isolation door; 48, screening fan; 49, guardrail; 410, driving rod; 411, static organism discharge assembly. DETAILED DESCRIPTION

[0029] Please refer to Figs. 1-3 The present application provides a dredging device for a water conservancy pump station, which comprises:

[0030] The dredging ship 1 is provided with two groups of power assemblies 2 at the front and rear;

[0031] The sludge digging assembly 3 is fixedly assembled on the left side of the upper surface of the dredging ship 1;

[0032] Mud conveying belt 5, fixedly assembled on the right side of the upper surface of the dredging ship 1, a mud separation assembly 4 is fixedly assembled above the mud conveying belt 5, and a mud transport vehicle is externally connected below the other end of the mud conveying belt 5;

[0033] Water pump 6, fixedly assembled on the upper surface of the dredging ship 1, the input pipe is placed below the water body, the output pipe above is fixedly assembled with a spraying assembly 7 and a water injection pipe 8, the spraying assembly 7 is placed above the mud separation assembly 4, and the water injection pipe 8 is placed on the right side of the mud separation assembly 4;

[0034] As a preferred embodiment, a delay start switch is arranged at the input port of the spraying assembly 7, the dredging ship 1 is placed on the water surface of the pump station to be dredged, the angle of the mud digging assembly 3 is adjusted, the mud digging assembly 3 is adjusted to the appropriate depth, the power assembly 2 is started to move the dredging ship 1 to the left, and the water pump 6 is started, the water is pumped into the mud separation assembly 4, the delay start switch is started and kept closed at this time, the water is injected into the mud separation assembly 4 on the right side through the water injection pipe 8, the mud mixture is conveyed to the mud separation assembly 4 through the mud digging assembly 3, when the first piece of mud mixture is conveyed to the position directly below the spraying assembly 7, the delay start switch is opened, the spraying assembly 7 sprays water flow to flush the mud mixture, the mud slurry mixed with the mud flows down to the mud conveying belt 5, and is conveyed to the mud transport vehicle at the terminal of the mud conveying belt 5, the aquatic organisms mixed in the mud and the bottom garbage move to the right in the mud separation assembly 4, and are respectively treated under the separation of the mud separation assembly 4, the separated aquatic organisms can be selectively returned to the water body, thereby maintaining the ecological stability of the pump station, the dredged mud does not contain other substances, and contains rich nutrients such as N and P, which can be discharged to suitable farmland to improve the soil nutrient structure and increase crop yield, other substances separated from the mud are respectively treated according to their properties, the ecological stability of the pump station is maintained while the pump station is cleaned, the waste is reasonably utilized, resources are saved, sustainable development is realized, and it is worth noting that when the content of the mud at the bottom of the pump station is small, the mud of the mud conveying belt 5 can be directly discharged to the sidewalk trees on both sides of the pump station, thereby simplifying the dredging steps and improving the dredging efficiency.

[0035] Further, the mud digging assembly 3 comprises:

[0036] Support seat 31, symmetrically arranged with two groups, fixedly assembled on the upper surface of the dredging ship 1, two groups of support seats 31 are rotatably assembled with conveying pipes 32 in the middle, and a screw conveyor 34 is coaxially arranged in the conveying pipe 32;

[0037] Mud transfer bin 35, fixedly assembled on the left side of the upper end of the conveying pipe 32, a mud collector 36 is rotatably connected to the left side, and the lower surface of the mud collector 36 is parallel to the upper surface of the dredging ship 1;

[0038] The driving motor 37 is fixedly arranged on the right upper end of the conveying pipe 32, and the output shaft of the driving motor 37 is fixedly connected to the screw conveyor 34;

[0039] As a preferred embodiment, the shape of the silt collector 36 can be adjusted according to the specific conditions of the pump station to be cleaned, and the cleaning range is inversely proportional to the thickness of the silt to be cleaned. The inner wall of the bottom of the silt collector 36 is provided with a cutting tooth to cut the silt into pieces, preventing the silt from being too large to block the silt collector 36 and affecting the dredging efficiency.

[0040] Further, the hydraulic cylinder 33 is rotatably arranged between the two groups of support seats 31, and the other end of the hydraulic cylinder 33 is rotatably arranged below the conveying pipe 32.

[0041] Further, the elastic connecting pipe 38 is fixedly arranged at the right lower end of the conveying pipe 32, the fixed silt discharge port 39 is fixedly arranged below the elastic connecting pipe 38, and the fixed silt discharge port 39 is fixedly arranged on the upper surface of the silt separation assembly 4.

[0042] Further, the anti-blocking conveying belt 310 is arranged on the inner wall below the right end of the silt collector 36, and a plurality of telescopic plates 311 are arranged on the surface of the anti-blocking conveying belt 310.

[0043] As a preferred embodiment, the width of the anti-blocking conveying belt 310 is slightly smaller than the width of the right end of the silt collector 36, the telescopic plates 311 are provided with springs, the minimum length of the telescopic plates 311 is equal to the length of the anti-blocking conveying belt 310, and the two ends of the telescopic plates 311 inside the silt collector 36 coincide with the inner walls of the front and rear sides of the silt collector 36. By adjusting the extension and contraction length of the hydraulic cylinder 33, the angle between the conveying pipe 32 and the upper surface of the dredging ship 1 can be changed, thereby changing the digging depth of the silt digging assembly 3. At the same time, when the angle between the conveying pipe 32 and the upper surface of the dredging ship 1 changes, the elastic connecting pipe 38 will be adaptively extended or retracted. When the dredging work is carried out, the silt mixture is collected in the silt collector 36 and then transported to the silt transfer warehouse 35 through the anti-blocking conveying belt 310, and finally falls into the silt separation assembly 4 through the screw conveyor 34.

[0044] Further, the silt separation assembly 4 comprises:

[0045] The separation shell 41 is fixedly arranged above the silt conveying belt 5, the inside of the separation shell 41 is provided with a silt removal warehouse 42 and a biological separation warehouse 43, and the silt removal warehouse 42 is located directly above the input port of the silt conveying belt 5;

[0046] As a preferred embodiment, when the sludge mixture is transported through the desilting chamber 42, the sludge therein is gradually removed, and the aquatic organisms and bottom waste are retained and transported into the biological separation chamber 43, and the aquatic organisms and bottom waste are classified by the biological separation chamber 43, and then the separated objects are treated according to their properties, the ecological environment is maintained under the premise of maintaining the biological diversity of the pumping station, and the useless objects in the sludge mixture are removed, so that the sludge can fully play a role.

[0047] Further, the desilting chamber 42 is fixedly provided with a chain mesh conveyor 44 above, which is fixedly provided with a vibration motor 45, and the left side of the chain mesh conveyor 44 is provided with a fixed desilting port 39, and the right side of the chain mesh conveyor 44 is fixedly provided with a spraying assembly 7.

[0048] As a preferred embodiment, the chain mesh conveyor 44 ensures that the sludge washed by water can pass through smoothly, while hindering other objects in the sludge from passing through, and the vibration motor 45 enables the chain mesh conveyor 44 to maintain a certain vibration while keeping running, improves the washing efficiency of the sludge by the spraying assembly 7, and prevents the sludge from adhering to the chain mesh.

[0049] Further, the biological separation chamber 43 is embedded with a plurality of screening fans 48 on the right side inner wall, and is embedded with a plankton free door 47 on the back side inner wall, and the plankton free door 47 is provided with a driving rod 410.

[0050] The biological separation chamber 43 is provided with a rectangular groove on the left side of the bottom, and is rotatably provided with a nematode discharge assembly 411 below.

[0051] As a preferred embodiment, the oligochaete discharge assembly 411 rotates intermittently, and in the static state, it blocks the rectangular groove, preventing the water in the biological separation bin 43 from flowing out. Since some oligochaetes such as river clams and snails have poor mobility, and some mobile organisms such as loaches live in silt, aquatic plants, and bottom garbage are in the same plane as the silt, when the silt is cleaned out of the river, the oligochaetes, mobile organisms, aquatic plants, and bottom garbage will also be removed with the silt. When they pass through the desilting bin 42, the silt accompanying them will be removed, and the oligochaetes, mobile organisms, some aquatic plants, and bottom garbage are transported into the biological separation bin 43. At this time, the screening fan 48 is opened, and the screening fan 48 blows to the left side. Adjust the power of the screening fan 48 to the appropriate power. When the oligochaetes, mobile organisms, some aquatic plants, and bottom garbage fall into the biological separation bin 43, the oligochaetes will move downward with the bottom garbage due to their poor mobility. When they fall within the range of the screening fan 48, the oligochaetes and the bottom garbage will move in a left parabolic motion. Since the density of the oligochaetes is lower than that of the bottom garbage, the distance moved to the left by the oligochaetes is greater than that of the bottom garbage. By controlling the wind power of the screening fan 48, the oligochaetes will fall into the oligochaete discharge assembly 411, and the bottom garbage will stay at the bottom of the biological separation bin 43. The oligochaetes return to the river through the intermittent rotation of the oligochaete discharge assembly 411, and the mobile organisms in it are temporarily left in the biological separation bin 43. When the dredging ship 1 travels a certain distance, stop the dredging work, start the drive rod 410, and open the mobile organism release door 47. The mobile organisms return to the river through the mobile organism release door 47 with the water flow, and at the same time, the bottom garbage at the bottom of the biological separation bin 43 is cleaned. When the cleaning is completed, the biological separation bin 43 is filled with water, and the dredging work is performed again.

[0052] Further, the aquatic plant collection basket 46 is fixedly installed on the right side of the separation shell 41, and a plurality of guardrails 49 are fixedly installed on the top of the right side wall of the separation shell 41;

[0053] As a preferred embodiment, the biological separation bin 43 is kept in an overflow state during the dredging work, and the height of the right side wall of the biological separation bin 43 is lower than that of the chain net conveyor belt 44. After the aquatic plants in the silt mixture reach the biological separation bin 43, the aquatic plants will float on the surface and flow into the aquatic plant collection basket 46 through the overflowing water. At the same time, the plurality of guardrails 49 fixedly installed on the top of the right side wall of the separation shell 41 ensure the passage of aquatic plants while preventing the mobile organisms from jumping over the right side wall of the biological separation bin 43 and reaching the aquatic plant collection basket 46.

[0054] In the specific implementation, the following steps are included: placing the dredging ship 1 on the water surface of the pump station to be dredged, adjusting the angle of the sludge digging assembly 3, adjusting the sludge digging assembly 3 to a suitable depth, starting the power assembly 2 to move the dredging ship 1 to the left, starting the water pump 6 to pump water into the sludge separating assembly 4, starting and keeping the delay start switch closed, injecting water into the sludge separating assembly 4 through the water injection pipe 8, conveying the sludge to the sludge separating assembly 4 through the sludge digging assembly 3, opening the delay start switch when the first sludge block is conveyed to the position directly below the spraying assembly 7, spraying water flow from the spraying assembly 7 to flush the sludge block, flowing the mixed sludge mud to the sludge conveying belt 5, and conveying the mixed sludge mud to the sludge transport vehicle at the terminal of the sludge conveying belt 5 through the sludge conveying belt 5, moving the aquatic organisms mixed in the sludge to the right in the sludge separating assembly 4, and separately processing the aquatic organisms and the bottom garbage in the sludge separating assembly 4, and selectively returning the separated aquatic organisms to the water body, and processing other objects.

[0055] The above description is only the preferred embodiment of the present application, but the protection scope of the present application is not limited to this. Any skilled person in the art can make equivalent replacement or change according to the technical solution and the inventive concept of the present application within the technical range disclosed by the present application, which should be covered in the protection scope of the present application.

Claims

1. A dredging device for a water conservancy pumping station, characterized in that: include: The dredging vessel (1) has two sets of power units (2) installed at the front and rear. The silt dredging component (3) is fixedly assembled on the left side of the upper surface of the dredging vessel (1); The sludge conveyor belt (5) is fixedly mounted on the right side of the upper surface of the dredging vessel (1), and a sludge separation component (4) is fixedly mounted on its upper surface. A sludge transport vehicle is connected to the lower side of the other end of the sludge conveyor belt (5). A water pump (6) is fixedly mounted on the upper surface of the dredging vessel (1). Its input pipe is placed below the water body, and its output pipe is fixedly mounted with a spray assembly (7) and a water injection pipe (8). The spray assembly (7) is placed above the sludge separation assembly (4), and the water injection pipe (8) is placed on the right side of the sludge separation assembly (4). The sludge separation component (4) includes: The separation shell (41) is fixedly mounted above the sludge conveyor belt (5). The separation shell (41) is provided with a sludge removal chamber (42) and a biological separation chamber (43), and the sludge removal chamber (42) is located directly above the inlet of the sludge conveyor belt (5). The biological separation chamber (43) has multiple sets of screening fans (48) embedded on the inner wall of the right side, and a free-moving biological gate (47) is embedded on the inner wall of the back side. A drive rod (410) is provided on the free-moving biological gate (47). A rectangular groove is provided on the bottom left side of the biological separation chamber (43), and an anaerobic biological discharge assembly (411) is rotatably mounted below it.

2. The dredging device for a water conservancy pumping station according to claim 1, characterized in that: The sludge dredging component (3) includes: Support base (31) is symmetrically arranged in two sets and fixedly mounted on the upper surface of the dredging vessel (1). A conveying pipe (32) is rotatably mounted in the middle of the two sets of support bases (31). A screw conveyor (34) is coaxially arranged inside the conveying pipe (32). The silt transfer chamber (35) is fixedly installed on the upper left side of the conveying pipe (32), and a silt collector (36) is rotatably connected to its left side, and the lower surface of the silt collector (36) is parallel to the upper surface of the dredging vessel (1). The drive motor (37) is fixedly mounted on the upper right side of the conveying pipe (32), and its output shaft is fixedly connected to the screw conveyor (34).

3. The dredging device for a water conservancy pumping station according to claim 2, characterized in that: A hydraulic cylinder (33) is rotatably mounted between the two sets of support seats (31), and the other end of the hydraulic cylinder (33) is rotatably mounted below the conveying pipe (32).

4. The dredging device for a water conservancy pumping station according to claim 2, characterized in that: An elastic connecting pipe (38) is fixedly installed at the lower right end of the conveying pipe (32), and a fixed sludge discharge port (39) is fixedly installed below the elastic connecting pipe (38). The fixed sludge discharge port (39) is fixedly installed on the upper surface of the sludge separation component (4).

5. A dredging device for a water conservancy pumping station according to claim 2, characterized in that: An anti-clogging conveyor belt (310) is provided on the inner wall below the right end of the sludge collector (36), and multiple sets of telescopic plates (311) are provided on the surface of the anti-clogging conveyor belt (310).

6. The dredging device for a water conservancy pumping station according to claim 1, characterized in that: A chain conveyor belt (44) is fixedly installed above the desilting chamber (42), and a vibrating motor (45) is fixedly installed on it. A fixed sludge discharge port (39) is provided on the upper left side of the chain conveyor belt (44), and a spray assembly (7) is fixedly installed on the upper right side of it.

7. The dredging device for a water conservancy pumping station according to claim 1, characterized in that: An aquatic plant collection basket (46) is fixedly installed on the right side of the separation shell (41), and multiple sets of protective railings (49) are fixedly installed on the upper side wall of the right side of the separation shell (41).

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