A new device for non-stop water green dredging of lined open channel

Abstract

The application discloses a kind of new devices of lined open channel green dredging without water stop, including dredging ship, and dredging ship is loaded with dredging mechanism, and dredging mechanism includes the outer frame and inner dredging box body that are only bottom surface opening, and the bottom end of outer frame and inner dredging box body is sealed together, and sealed cavity is formed between outer frame and inner dredging box body, and pressure sensor is arranged at the bottom of outer frame;Two opposite sides of the bottom of the inner dredging box body are provided with air knife mechanism, and among the other two opposite sides, one side is provided with flushing water jet mechanism near the bottom thereof, and the bottom of the other opposite side is provided with mud pumping mechanism.The application can realize the cleaning of the sludge at the bottom of the open channel without stopping water, and the cleaning process will not cause great disturbance to the surrounding water body, nor will it cause secondary pollution to the surrounding water body;It can clean the accumulated material in the channel timely and efficiently, greatly reducing the use of human labor, and improving work efficiency.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of open channel cleaning, and particularly relates to a new green dredging device for open channel with lining without water stoppage. BACKGROUND

[0002] With the increasingly improved water conservancy construction technology in China, large and medium-sized open channels are often open channels extending for thousands of kilometers, and dust in the air and other impurities and microorganisms inevitably mix in the process of water transportation along the way, settle on the channel bottom and gradually accumulate to form silt, breed various microorganisms and benthic organisms; this will inevitably affect the water quality and hinder people's normal water demand. Since the water supply load of large and medium-sized open channels is high, the channels usually cannot be dredged with water stoppage; if the silt on the channel bottom cannot be removed in time and microorganisms breed on the slope, this will be an important factor affecting the water quality of large and medium-sized water diversion projects in the future.

[0003] The traditional dredging technology mainly installs dredging equipment on a ship, basically takes the dredging ship as an operation platform, and develops and utilizes the silt by the dredging ship fixed at a position and transported to a designated position by a pipeline. This dredging method can be divided into a cutter suction type, a bucket wheel type, a grab bucket type and a pump suction type. These methods often greatly interfere with the surrounding water, and cause secondary pollution to the surrounding water during dredging; if cofferdams are used to drain water and suck silt, it is usually difficult to achieve for large and medium-sized open channels, especially for channels that need to be in a water transportation state and ensure water quality. SUMMARY

[0004] To solve the above problems, the application provides a new green dredging device for open channel with lining without water stoppage.

[0005] The purpose of the application is achieved in the following manner:

[0006] The new green dredging device for open channel with lining without water stoppage comprises a dredging ship 21, and a dredging mechanism loaded on the dredging ship 21, wherein the dredging mechanism comprises an outer frame 1 and an inner dredging box 2, both of which are only open at the bottom, the bottom ends of the outer frame 1 and the inner dredging box 2 are sealingly connected together, a sealed cavity is formed between the outer frame 1 and the inner dredging box 2, and a pressure sensor is arranged at the bottom of the outer frame 1; two opposite side surfaces of the inner dredging box 2 are provided with air knife mechanisms at the bottom, one of the other two opposite side surfaces is provided with a flushing water spraying mechanism near the bottom, and the bottom of the other opposite side surface is provided with a mud pumping mechanism.

[0007] The bottom edge of the outer frame 1 is connected with a long rectangular hollow rubber shrinkage pad 12.

[0008] The air knife mechanism, the flushing water spraying mechanism and the mud pumping mechanism are all arranged in the sealed cavity, and only the air outlet of the air knife mechanism, the flushing water outlet of the flushing water spraying mechanism and the mud inlet of the mud pumping mechanism are respectively connected with the inside of the inner dredging box 2.

[0009] The hydraulic telescopic rod 16 is fixed below the bottom of the dredging ship 21, the bottom end of the hydraulic telescopic rod 16 is connected with the ball head shaft 15, the ball head shaft 15 is connected with the dredging mechanism, the top surface of the outer frame 1 of the dredging mechanism is connected with the connecting support 5, the top end of the connecting support 5 is connected with the universal ball of the ball head shaft 15, and the hydraulic telescopic rod 16 drives the outer frame 1 to tilt or rotate through the ball head shaft 15 and the connecting support 5.

[0010] The air knife mechanism comprises air knife nozzles 9 arranged along the length direction of the side surface of the inner dredging box 2 at intervals, the air knife nozzles 9 are connected with air duct branch pipes 10, the air duct branch pipes 10 are connected with an air duct main pipe 13, and the end of the air duct main pipe 13 is connected with an air blower.

[0011] The flushing water spraying mechanism comprises flushing spray pipes 11 distributed along the width direction of the side surface of the inner dredging box 2, the rear end of the flushing spray pipes 11 is connected with a flushing water inlet pipe 8 and a flushing water pump 3, and the flushing water inlet pipe 8 is connected with a water tank.

[0012] The mud pumping mechanism comprises a mud pumping pipe 14, the rear end of the mud pumping pipe 14 is connected with a mud pumping pump 4 and a mud pumping guide pipe 7, and the end of the mud pumping guide pipe 7 is connected with a sludge tank 20.

[0013] The dredging ship 21 is also provided with a control box 19, and the control box 19 is connected with the driving devices of the pressure sensor, the hydraulic telescopic rod 16, the air knife mechanism, the flushing water spraying mechanism and the mud pumping mechanism respectively.

[0014] The connecting positions between the outer frame 1 and the inner dredging box 2 are all provided with water stop rubber sleeves 17, and the connecting positions between the air knife mechanism, the flushing water spraying mechanism, the mud pumping mechanism and the inner dredging box 2 or the outer frame 1 are also all provided with water stop rubber sleeves 17.

[0015] The outer frame 1 and the inner dredging box 2 are fixed together through bolts 18.

[0016] Compared with the prior art, the sealed cleaning cavity is formed by arranging the outer frame and the inner dredging box, the air knife mechanism, the flushing water spraying mechanism and the mud pumping mechanism are cooperated with each other, the sludge at the bottom of the open channel can be cleaned without stopping water, the surrounding water body is not disturbed and is not secondarily polluted during the cleaning process, the channel accumulated material can be cleaned in time and efficiently, the use of human labor is greatly reduced, and the work efficiency is improved. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1is a structural schematic diagram of the present application.

[0018] Figure 2 is Figure 1 is a structural schematic diagram of the dredging mechanism in

[0019] Figure 3 is Figure 2 is a right view of

[0020] Figure 4 is Figure 2 is a structural schematic diagram of the air knife nozzle in

[0021] In the figure, 1 is an outer frame; 2 is an inner dredging box; 3 is a flushing water pump; 4 is a mud pumping pump; 5 is a connecting support; 6 is an outer main pipe; 7 is a mud pumping pipe; 8 is a flushing water inlet pipe; 9 is an air knife nozzle, 901 is a nozzle; 10 is an air duct branch pipe; 11 is a flushing nozzle; 12 is a rubber shrinkage pad; 13 is an air duct main pipe; 14 is a mud pumping pipe; 15 is a ball head shaft; 16 is a hydraulic telescopic rod; 17 is a water stop rubber sleeve; 18 is a bolt; 19 is a control box; 20 is a sludge tank; 21 is a dredging ship. DETAILED DESCRIPTION

[0022] As Figure 1 , Figure 2 shown, a new device for green dredging of a lined open channel without water stoppage comprises a dredging ship 21, and the dredging ship 21 is loaded with a dredging mechanism, the dredging mechanism comprises an outer frame 1 and an inner dredging box 2, both of which are only open at the bottom, the outer frame 1 and the inner dredging box 2 are both cuboids, the bottom ends of the outer frame 1 and the inner dredging box 2 are sealingly connected together, a sealed cavity is formed between the outer frame 1 and the inner dredging box 2, the sealed cavity is used for accommodating cables and pipelines and other equipment, and a pressure sensor (not marked in the figure) is arranged at the bottom of the outer frame 1; two opposite side bottoms of the inner dredging box 2 are provided with air knife mechanisms, and among the other two opposite sides, one side is provided with a flushing water spraying mechanism near the bottom thereof, and the bottom of the other opposite side is provided with a mud pumping mechanism. The lined open channel refers to an open channel with a concrete bottom, and the present application is more suitable for the lined open channel.

[0023] In order to facilitate the outer frame 1 and the inner dredging box 2 to be closely combined with the bottom of the open channel to form an absolutely sealed space, a hollow rubber shrinkage pad 12 in the shape of a rectangle is connected to the bottom edge of the outer frame 1. Since the rubber shrinkage pad 12 is made of rubber, it can be seamlessly combined with the concrete of the bottom of the open channel.

[0024] In order to prevent sludge from adhering to the air knife mechanism, the flushing water spraying mechanism and the mud pumping mechanism, the air knife mechanism, the flushing water spraying mechanism and the mud pumping mechanism are all arranged in the sealed cavity, and only the air outlet of the air knife mechanism, the flushing water outlet of the flushing water spraying mechanism and the mud inlet of the mud pumping mechanism are respectively connected to the inside of the inner dredging box 2.

[0025] Furthermore, such as Figure 1 , Figure 3 As shown, a hydraulic telescopic rod 16 is fixedly connected to the bottom of the dredging vessel 21. A ball joint shaft 15 is connected to the bottom end of the hydraulic telescopic rod 16, and the ball joint shaft 15 is connected to the dredging mechanism. A connecting bracket 5 is connected to the top surface of the outer frame 1 of the dredging mechanism. The connecting brackets 5 are distributed at the four corners of the outer frame 1, and their upper ends are fixed together. The top of the connecting bracket 5 is connected to the universal ball joint of the ball joint shaft 15. The hydraulic telescopic rod 16 drives the outer frame 1 to tilt or rotate through the ball joint shaft 15 and the connecting brackets 5. The universal ball joint of the ball joint shaft 15 is embedded in the bottom end of the ball joint shaft, allowing for multi-directional rotation. This is a mature existing technology and will not be described in detail here.

[0026] Furthermore, such as Figure 2 As shown, the air knife mechanism includes air knife nozzles 9 spaced apart along the length of the side of the inner sludge removal box 2. Adjacent air knife nozzles 9 are connected by branch pipes 10, which are connected to a main air duct 13. A fan (not shown in the figure) is connected to the end of the main air duct 13. The fan can be a vortex fan or a high-pressure centrifugal fan, used to drive the air knife nozzles 9, which is existing technology. The structure of the air knife nozzle 9 is as follows: Figure 4 As shown, it is stepped and has a cavity inside. The part near the inner side of the inner sludge cleaning box 2 is the nozzle 901.

[0027] Furthermore, such as Figure 2 As shown, the flushing spray mechanism includes flushing spray pipes 11 distributed along the width of the side of the inner sludge removal box 2. The rear end of the flushing spray pipes 11 is connected to a flushing water inlet pipe 8 and a flushing water pump 3. The flushing water inlet pipe 8 is connected to a water tank (not shown in the figure). The flushing spray pipes 11 include several nozzle branch pipes.

[0028] Furthermore, such as Figure 2 As shown, the sludge pumping mechanism includes a sludge pumping pipe 14, with a sludge pumping pump 4 and a sludge pumping conduit 7 connected to the rear end of the sludge pumping pipe 14. A sludge tank 20 is connected to the end of the sludge pumping conduit 7, and the sludge tank 20 is mounted on the dredging vessel 21. Both the flushing water pump 3 and the sludge pumping pump 4 are fixedly mounted on the outer frame 1. The aforementioned blower and water tank are also mounted on the dredging vessel 21.

[0029] The upper sections of the aforementioned sludge suction pipe 7, flushing inlet pipe 8, and air duct main pipe 13 are all fitted inside the outer main pipe 6, and extend together with the outer main pipe 6 onto the dredging vessel 21. The outer main pipe 6 is located in the middle of the outer frame 1 and the inner dredging box 2 and is fixedly connected to the outer frame 1 and the inner dredging box 2 respectively. Water-stop rubber sleeves 17 are also provided at the connection points to prevent sewage from causing secondary pollution to the surrounding water bodies.

[0030] In order to facilitate automatic control, the dredging ship 21 is further provided with a control box 19, which is connected with the driving devices of the pressure sensor, the hydraulic telescopic rod 16, the air knife mechanism, the flushing water spraying mechanism and the mud pumping mechanism. Specifically, the control box 19 comprises a controller and a display, the controller controls the switch and working power of the air knife mechanism, the flushing water spraying mechanism and the mud pumping mechanism, and the display displays the working conditions of the pressure sensor, the air knife mechanism, the flushing water spraying mechanism and the mud pumping mechanism. The control part is mature prior art, and will not be described here. The power lines used in the application are packaged with waterproof and durable materials and extended through the water stop rubber sleeve of the top wall of the outer frame 1.

[0031] In order to prevent secondary pollution of sewage to the surrounding water, the connection between the outer frame 1 and the inner dredging box 2 is provided with a water stop rubber sleeve 17, and the connection between the air knife mechanism, the flushing water spraying mechanism and the mud pumping mechanism and the inner dredging box 2 or the outer frame 1 is also provided with a water stop rubber sleeve 17.

[0032] In order to facilitate disassembly and maintenance, the outer frame 1 and the inner dredging box 2 are fixed together through bolts 18.

[0033] During operation, the control box 19 drives the hydraulic telescopic rod 16 to drive the dredging mechanism to press into the water channel to be cleaned through the ball head shaft 15 and the connecting bracket 5. The presence of the ball head shaft 15 can ensure that the dredging mechanism can work on the bank slope of the water channel. After the lower bottom surface of the rubber telescopic pad 12 contacts the channel bottom, it is continuously pressed until the pressure sensor reaches the preset value. At this time, the control box 19 drives the air knife mechanism to start working, and high-pressure airflow is sprayed out of the air knife nozzle 9 to initially separate and remove the silt at the bottom of the open channel in the inner dredging box 2. After a period of time, the control box 19 stops the air knife mechanism, opens the mud pumping mechanism, and starts the mud pump 4 to suck the sludge in the inner dredging box 2 through the mud pumping pipe 14. After the suction is completed, the control box 19 closes the mud pump 4, opens the flushing water spraying mechanism, and starts the flushing water pump 3 to perform secondary dredging through the high-pressure water flow sprayed by the flushing spray pipe 11. After flushing, the mud pump 4 is opened again for suction, thereby completing a cycle of work of the dredging mechanism.

[0034] The above is only the preferred embodiment of the application. It should be pointed out that for those skilled in the art, without departing from the overall concept of the application, a number of changes and improvements can be made, which should be considered as the protection scope of the application, and these will not affect the effect and practicality of the application.

Claims

1. A novel green dredging device for lined open channels that operates without interrupting water flow, characterized in that: The dredging vessel (21) is equipped with a dredging mechanism. The dredging mechanism consists of an outer frame (1) with only an opening at the bottom and an inner dredging box (2). The bottom ends of the outer frame (1) and the inner dredging box (2) are sealed together, forming a sealed cavity between the outer frame (1) and the inner dredging box (2). A pressure sensor is installed at the bottom of the outer frame (1), and a rectangular hollow rubber shrink pad (12) is connected to the bottom edge of the outer frame (1). A hydraulic telescopic rod (16) is fixedly connected to the bottom of the dredging vessel (21), and a ball joint shaft (15) is connected to the bottom end of the hydraulic telescopic rod (16). The ball joint shaft (15) is connected to the top of the outer frame (1) of the dredging mechanism. The surface is connected to a connecting bracket (5), the top of the connecting bracket (5) is connected to the universal ball of the ball head shaft (15), and the hydraulic telescopic rod (16) drives the outer frame (1) to tilt or rotate through the ball head shaft (15) and the connecting bracket (5); the bottom of the two opposite sides of the inner sludge box (2) is provided with a wind knife mechanism, and one of the other two opposite sides is provided with a flushing water spraying mechanism near its bottom, and the bottom of the other opposite side is provided with a mud pumping mechanism. The wind knife mechanism, the flushing water spraying mechanism and the mud pumping mechanism are all located in the sealed cavity, and are connected to the interior of the inner sludge box (2) only through the air outlet of the wind knife mechanism, the flushing water outlet of the flushing water spraying mechanism and the mud inlet of the mud pumping mechanism.

2. The new green dredging device for lined open channels without interrupting water flow as described in claim 1, characterized in that: The air knife mechanism includes air knife nozzles (9) spaced apart along the length of the side of the inner sludge removal box (2), with air duct branch pipes (10) connecting adjacent air knife nozzles (9), air duct branch pipes (10) connecting to air duct main pipes (13), and a fan connected to the end of the air duct main pipes (13).

3. The new green dredging device for lined open channels without interrupting water flow as described in claim 1, characterized in that: The flushing spray mechanism includes flushing spray pipes (11) distributed along the width of the side of the inner sludge removal box (2). The rear end of the flushing spray pipes (11) is connected to a flushing inlet pipe (8) and a flushing water pump (3). The flushing inlet pipe (8) is connected to a water tank.

4. The new green dredging device for lined open channels without interrupting water flow as described in claim 1, characterized in that: The sludge pumping mechanism includes a sludge pumping pipe (14), the rear end of which is connected to a sludge pump (4) and a sludge pumping conduit (7), and the end of the sludge pumping conduit (7) is connected to a sludge tank (20).

5. The new green dredging device for lined open channels without interrupting water flow as described in claim 1, characterized in that: The dredging vessel (21) is also equipped with a control box (19), which is connected to the driving devices of the pressure sensor, hydraulic telescopic rod (16), air knife mechanism, flushing spray mechanism and mud pumping mechanism.

6. The new green dredging device for lined open channels without interrupting water flow as described in claim 1, characterized in that: Water-stop rubber sleeves (17) are provided at the connection between the outer frame (1) and the inner sludge removal box (2). Water-stop rubber sleeves (17) are also provided at the connection between the air knife mechanism, the flushing and spraying mechanism, the sludge pumping mechanism and the inner sludge removal box (2) or the outer frame (1).

7. The new green dredging device for lined open channels without interrupting water flow as described in claim 1, characterized in that: The outer frame (1) and the inner dredging box (2) are fixed together by bolts (18).

Images