A low-disturbance sludge removal device suitable for shallow water areas

Abstract

This disclosure provides a low-disturbance sludge cleaning device suitable for shallow water areas, comprising: a first connecting part; a shovel plate disposed on the first connecting part, the length direction of the shovel plate being in the same direction as the length direction of the first connecting part; a first auger rotatably disposed on one side of the first connecting part; a cover disposed on the first connecting part, the cover having an inlet on the side of the cover near the shovel plate; a first driving member disposed on the first connecting part, the first driving member driving the first auger to rotate; and an adsorption member disposed on one side of the first connecting part, the adsorption member adsorbing the sludge decomposed by the first auger. By setting the cover to enclose the first auger (and a second auger) inside, the sludge scooped up by the shovel plate enters the cover through the inlet for crushing, avoiding the agitation of the water by the high-speed rotation of the auger causing the mud particles to suspend, effectively preventing the formation of turbid water and reducing the secondary release of pollutants.

Description

Technical Field

[0001] This disclosure relates to the field of sludge treatment, and more particularly to a low-disturbance sludge cleaning device suitable for shallow water areas. Background Technology

[0002] With the continuous advancement of water environment governance in my country, dredging of river, lake, and reservoir bottom sediments has become a core component in improving water quality and restoring the aquatic ecological environment. Long-term accumulation of bottom sediment not only raises riverbeds and reduces reservoir capacity, but also adsorbs large amounts of heavy metals, organic matter, and nitrogen and phosphorus nutrients. Under conditions of water disturbance and temperature changes, these pollutants are released, leading to eutrophication and black / odorous water bodies. Traditional bottom dredging often employs cutter suction dredging vessels, whose core working component is a high-speed rotating cutter head. This head cuts and breaks up the bottom sediment, and then uses a mud pump to remove the sediment under negative pressure.

[0003] However, traditional cutter suction dredging equipment has inherent defects: the cutter head has no anti-overflow or anti-disturbance structure, and the high-speed cutter will violently stir up the silt at the bottom of the water, causing a large number of fine mud particles to be suspended in the water, forming a large area of ​​turbid water. This not only reduces the transparency of the water, but also causes the pollutants adsorbed in the bottom mud to be released again, causing secondary pollution. Summary of the Invention

[0004] This disclosure provides a low-disturbance sludge removal device suitable for shallow water areas, to at least solve the above-mentioned technical problems existing in the prior art.

[0005] According to a first aspect of this disclosure, a low-disturbance sludge cleaning device suitable for shallow water areas is provided, including a first connecting portion; A shovel plate is disposed on a first connecting part, and the length direction of the shovel plate is in the same direction as the length direction of the first connecting part. The first auger is rotatably disposed on one side of a connecting part, the first auger is axially disposed along a first direction, and the first auger is disposed on one side of the shovel plate along a second direction; The cover is disposed on the first connecting part, the first auger is located inside the cover, the length direction of the cover is in the same direction as the axis of the first auger, and the cover has an inlet on the side near the shovel plate to facilitate the sludge shoveled by the shovel plate to enter the cover. A first driving member is disposed on a first connecting part, and the first driving member drives the first auger to rotate. An adsorption element is disposed on one side of the first connection portion, and the adsorption element is used to adsorb the sludge decomposed by the first screw conveyor.

[0006] Furthermore, the low-disturbance sludge cleaning device suitable for shallow water areas also includes a second auger, which is located inside the casing. The axial direction of the first auger coincides with the axial direction of the second auger, and the spiral direction of the second auger is opposite to that of the first auger.

[0007] Furthermore, the shovel plate is rotatably mounted on the first connecting part, and the first connecting part is provided with a second driving member for driving the shovel plate to rotate.

[0008] Furthermore, the first connecting portion includes, A first shaft extends along a first direction, and the shovel is rotatably mounted on the first shaft; A filtration unit is provided on the first shaft. The filtration unit is located on one side of the first auger and the second auger. The filtration unit is connected to the adsorption element and is used to filter out impurities in the sludge. The working arm is located on one side of the first shaft, and the working arm drives the first shaft to move along a set direction on the bottom of the water.

[0009] Furthermore, the filtering unit includes, A first housing is fixedly mounted on the surface of the cover and is connected to the adsorption element. A slot is formed on the cover, and the first housing is connected to the slot. A filter screen is fixedly installed on the side of the first housing facing the slot. The filter screen is arc-shaped and fits the inner wall of the housing.

[0010] Furthermore, the cover is arc-shaped, and the axial direction of the arc-shaped cover coincides with the axial direction of the first auger and the second auger. The two sides of the cover along the first direction are open channels.

[0011] Furthermore, a flow guide is provided on the side of the cover away from the first connection portion, the flow guide being used to introduce water flow from outside the cover into the feed inlet.

[0012] Furthermore, the drainage element includes, A connector is fixedly mounted on the cover, and the length direction of the connector is the same as the length direction of the cover. The mounting hole is formed on the connecting body and the mounting hole is axially oriented towards the material inlet of the cover. A spiral wheel is rotatably disposed within a mounting hole, and the axis of the spiral wheel coincides with the axis of the mounting hole.

[0013] A filter cover is fixedly mounted on the connector and located at the mounting hole, and the spiral wheel is located inside the filter cover.

[0014] Furthermore, the side of the shovel plate away from the first connecting part is provided with multiple comb teeth.

[0015] Compared with the prior art, the low-disturbance sludge cleaning device applicable to shallow water areas disclosed herein has the following beneficial effects: by setting up a cover to enclose the first auger (and the second auger), the sludge scooped up by the shovel enters the cover through the feed port for crushing, avoiding the sludge particles from being suspended due to the agitation of the water when the auger rotates at high speed, effectively preventing the formation of turbid water and reducing the secondary release of pollutants.

[0016] It should be understood that the description in this section is not intended to identify key or essential features of the embodiments of this disclosure, nor is it intended to limit the scope of this disclosure. Other features of this disclosure will become readily apparent from the following description. Attached Figure Description

[0017] The above and other objects, features, and advantages of this disclosure will become readily apparent from the following detailed description of exemplary embodiments, taken in conjunction with the accompanying drawings. Several embodiments of this disclosure are illustrated in the drawings by way of example and not limitation, in which: In the accompanying drawings, the same or corresponding reference numerals indicate the same or corresponding parts.

[0018] Figure 1 A schematic diagram of the overall structure of this disclosure is shown; Figure 2 A schematic diagram of the housing, the first auger, and the second auger of this disclosure is shown; Figure 3 Schematic diagrams of the first and second augers of this disclosure are shown; Figure 4 A schematic diagram of the drainage component structure of this disclosure is shown; Figure 5 A schematic diagram of the enclosure structure of this disclosure is shown; Figure 6 A schematic diagram of the filtering unit of this disclosure is shown.

[0019] Explanation of the labels in the diagram: 100, First connecting part; 110, First shaft; 120, Filter unit; 121, First housing; 122, Groove; 123, Filter screen; 130, Working arm; 200. Shovel plate; 210. Comb teeth; 300. The first auger; 400. Cover; 410. Inlet; 500. First driving component; 600. Adsorption components; 700, Second Screwdriver; 800. Second drive unit; 900, Drainage component; 910, Connector; 920, Mounting hole; 930, Spiral wheel; 940, Filter cover. Detailed Implementation

[0020] To make the objectives, features, and advantages of this disclosure more apparent and understandable, the technical solutions in the embodiments of this disclosure will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this disclosure, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this disclosure without creative effort are within the scope of protection of this disclosure.

[0021] As my country's water environment governance efforts continue to advance, dredging of river, lake, and reservoir bottom sediments has become a core component in improving water quality and restoring the aquatic ecological environment. Long-term accumulation of bottom sediment not only raises riverbeds and reduces reservoir capacity, but also adsorbs large amounts of heavy metals, organic matter, and nitrogen and phosphorus nutrients. Under conditions of water disturbance and temperature changes, these sediments release pollutants, leading to eutrophication, blackening, and odorous water bodies, severely impacting water resource utilization efficiency and ecological environment quality.

[0022] Traditional underwater dredging primarily utilizes cutter suction dredging vessels, whose core working component is a high-speed rotating cutter head. This head cuts and breaks up the bottom mud, which is then transported using a mud pump under negative pressure. This type of equipment offers high efficiency in large-scale dredging operations in deep water areas and is widely used in water conservancy projects and waterway dredging.

[0023] However, traditional cutter suction dredging equipment has inherent defects, and is especially unsuitable for dredging operations in shallow and ecologically sensitive areas: First, the cutter head has no spill-proof or disturbance-proof structure, and the high-speed cutter will violently stir up the silt at the bottom of the water, causing a large number of fine mud particles to be suspended in the water, forming a large area of ​​turbid water. This not only reduces the transparency of the water, but also causes the pollutants adsorbed in the bottom mud to be released again, causing secondary pollution. This is contrary to the current concept of "ecological priority and green environmental protection" in water environment management.

[0024] Meanwhile, some equipment lacks an effective sludge guiding and collection structure, making it easy for sludge to overflow from the work area and exacerbate water pollution; some equipment does not have a filtration mechanism, and debris such as stones and branches mixed in the sludge can easily damage equipment parts or block the conveying channel; some equipment has poor adjustment performance and cannot flexibly adjust the working angle according to the thickness of the sludge and the bottom topography, resulting in incomplete sludge removal and missed areas.

[0025] Please see Figure 1 and Figure 2To address the aforementioned technical problems, this application presents a low-disturbance sludge removal device suitable for shallow water areas. It is primarily applicable to sludge removal operations in ecologically sensitive shallow water areas with a depth of 1-3 meters. The device includes a first connecting part 100, a shovel plate 200, a first auger 300, a second auger 700, a cover 400, a first driving component 500, and an adsorption component 600. These components work together to achieve shoveling, crushing, filtering, and adsorption of sludge, thus avoiding secondary pollution.

[0026] The first connecting part 100 serves as the mounting base for the entire device, used to fix and support other components. Its structural design directly affects the stability and operational flexibility of the device. In this embodiment, the first connecting part 100 includes a first shaft 110, a filter unit 120, and a working arm 130. The entire part is made of high-strength stainless steel, which is corrosion-resistant, impact-resistant, and lightweight, making it suitable for long-term underwater operation while reducing the overall weight of the device and facilitating movement in shallow water.

[0027] The first shaft 110 extends along the first direction (i.e., the length direction of the device), and its length can be flexibly set according to the width of the shallow water area, usually 1.5-3m, to ensure sufficient strength and rigidity to withstand the weight of components such as the shovel plate 200, auger, and drive unit, as well as the impact force during dredging operations. The surface of the first shaft 110 is treated with anti-corrosion measures (such as galvanizing or spraying with an anti-corrosion coating), which can effectively prevent underwater corrosion and extend its service life.

[0028] Please see Figure 1 , Figure 2 , Figure 5 and Figure 6 The filter unit 120 is mounted on the first shaft 110, located on one side of the first and second augers, and communicates with the adsorption element 600. Its function is to filter out stones, branches, weeds, and other debris from the silt, preventing debris from entering the adsorption element 600 and the augers, thus preventing equipment blockage or component wear. Specifically, the filter unit 120 includes a first housing 121, a slot 122, and a filter screen 123.

[0029] The first housing 121 is made of stainless steel and is fixed to the surface of the cover 400 by welding or bolting. Its interior forms a receiving space for temporarily storing filtered sludge, which is then adsorbed by the adsorption element 600. The top of the first housing 121 is provided with an interface that connects to the adsorption element 600 through a pipe.

[0030] The slot 122 is formed on the casing 400, above the first auger 300 and the second auger 700, to ensure that the sludge broken up by the augers can smoothly enter the first casing 121 through the slot 122. The edges of the slot 122 are rounded to reduce the resistance to sludge flow.

[0031] The filter screen 123 is fixedly installed on the side of the first housing 121 facing the slot 122. It is made of stainless steel woven mesh with a mesh size of 5-10mm, which can effectively filter out impurities with a diameter larger than the mesh size, while ensuring that sludge can pass through smoothly. The filter screen 123 is arc-shaped and fits into the inner wall of the cover 400, adhering to the inner wall of the cover 400. This design can increase the filtration area and improve the filtration efficiency, while avoiding collision between the filter screen 123 and the auger, ensuring the normal rotation of the auger. At the same time, since the first auger 300 and the second auger 700 are both coaxial with the cover 400, most of the impurities remaining on the surface of the filter screen 123 will be removed during the rotation of the first auger 300 and the second auger 700, reducing the clogging of the filter screen 123.

[0032] The working arm 130 is located on one side of the first shaft 110. One end of the working arm 130 is connected to the first shaft 110, and the other end is mounted on the mobile device, such as a ship or a waterborne mobile device. The working arm 130 can be hydraulically or electrically driven (hydraulic drive is used in this embodiment) to move the first shaft 110 along a set direction (such as forward / backward or left / right) on the seabed, achieving all-round dredging without the need for frequent adjustments to the overall position of the equipment, thus improving dredging efficiency. The rotation angle of the working arm 130 can be adjusted within the range of 0-90°, adapting to different underwater terrains and ensuring stable movement of the device. The drive mechanism for the working arm 130 is a commonly used existing device and will not be described in detail here.

[0033] Furthermore, the boom 130 can adopt a telescopic modular boom design, with the main body spliced ​​from multiple high-strength aluminum alloy profiles. At the same time, the boom 130 sections are fastened together with flange bolts, which can achieve quick assembly and disassembly. It can be flexibly configured to form a continuously adjustable working width of 0.5–4m according to the width of the river and the needs of the dredging work surface, making it suitable for various shallow water scenarios such as small ditches, medium-sized rivers, and landscape ponds.

[0034] The shovel plate 200 is mounted on the first shaft 110 of the first connecting part 100, and its length direction is the same as the length direction of the first shaft 110 (i.e., the first direction). It is used to scoop up silt from the bottom of the water and guide the silt to the inlet 410 of the cover 400. The shovel plate 200 is made of wear-resistant steel plate with a thickness of 10-15mm. It has high wear resistance and strength, can withstand the impact of hard objects on the bottom of the water, and extends its service life.

[0035] Please see Figure 1 and Figure 2In this embodiment, the shovel 200 is rotatably mounted on the first shaft 110, allowing it to rotate around the shaft and adjust the shoveling angle. A second drive component 800, which can be a waterproof hydraulic cylinder, is mounted on the first shaft 110 and hinged to the shovel 200. The extension and retraction of the hydraulic cylinder drives the shovel 200 to rotate around the shaft, adjusting the angle between the shovel 200 and the bottom of the water (the angle can be adjusted within the range of 15-60°). When the silt is thick, the angle can be increased to allow the shovel 200 to penetrate deeper into the silt layer, increasing the shovel's capacity. When the silt is thin or the bottom topography is complex, the angle can be decreased to prevent the shovel 200 from scratching the riverbed, adapting to different dredging conditions.

[0036] The shovel plate 200 has multiple comb teeth 210 on the side away from the first connecting part 100 (i.e., the front end of the shovel plate 200). The comb teeth 210 are integrally formed with the shovel plate 200 and are made of high-strength stainless steel. The comb teeth 210 can quickly cut through the silt layer, reduce the resistance when the shovel plate 200 scoops up the silt, and at the same time, can separate weeds, dead branches and other thin debris in the silt, preventing debris from getting tangled on the shovel plate 200 or blocking the feed inlet 410, thereby further improving the sludge removal efficiency.

[0037] The first auger 300 is rotatably mounted on one side of the first shaft 110 of the first connecting part 100. Its axial direction is set along a first direction (in the same direction as the length direction of the first shaft 110), and it is set along a second direction (i.e., a vertical direction perpendicular to the first direction) on one side of the shovel plate 200, specifically above the shovel plate 200. The first auger 300 adopts a spiral auger structure, including a rotating shaft and spiral blades. The rotating shaft is made of stainless steel, and the spiral blades are made of wear-resistant steel plate and welded to the rotating shaft. The configuration can be flexibly adjusted according to the viscosity and particle size of the sludge.

[0038] Please see Figure 2 and Figure 3 To further improve the sludge crushing effect, this embodiment also includes a second auger 700. The second auger 700 is located inside the casing 400 and is coaxially arranged with the first auger 300, meaning the axial direction of the first auger 300 coincides with the axial direction of the second auger 700, but the spiral direction of the second auger 700 is opposite to that of the first auger 300. The structure of the second auger 700 is the same as that of the first auger 300, with the same shaft diameter and spiral blade size, ensuring stability when they work together. Because the spiral directions of the first auger 300 and the second auger 700 are opposite, the sludge can be moved towards both sides of the casing 400 along the first direction, improving the crushing efficiency. Simultaneously, impurities inside the sludge will also move towards both sides of the casing 400 as the first auger 300 and the second auger 700 rotate, reducing the amount of impurities remaining inside the casing 400.

[0039] The first auger 300 and the second auger 700 are rotatably connected to the housing 400 at both ends via bearings. The bearings are waterproof to ensure underwater sealing performance and prevent water from entering the bearings, which could cause wear or jamming. One end of the first auger 300 is connected to the first drive unit 500, which drives it to rotate via a gear set. Simultaneously, the first drive unit 500 drives the second auger 700 to rotate synchronously via a coupling. (The first auger 300 and the second auger 700 rotate in the same direction, but the spiral blades of the first auger 300 and the second auger 700 have opposite spiral directions. This reverse spiral blade design enables bidirectional transport of sludge, solving the problem of excessively long impurity retention time caused by unidirectional transport.)

[0040] When the first driving component 500 drives the first auger 300 and the second auger 700 to rotate in the same direction, since the spiral blades of the two are in opposite directions, the sludge entering the casing 400 can be driven to move in two different directions, avoiding the sludge and impurities in it from staying in the casing 400 for a long time when transported in a single direction, thus reducing the risk of impurity accumulation and blockage.

[0041] The cover 400 is mounted on the first shaft 110 of the first connecting part 100 to enclose the first auger 300 and the second auger 700. This prevents the augers from agitating the water during rotation, avoids suspending mud particles, and guides the flow of sludge, ensuring that the sludge can smoothly enter the filter unit 120. The cover 400 is arc-shaped and made of stainless steel, possessing sufficient strength and corrosion resistance. Its arc-shaped axis coincides with the axis of the first auger 300 and the second auger 700, adapting to the shape of the augers and maximizing their enclosure to minimize sludge overflow.

[0042] The length of the casing 400 is the same as that of the first auger 300 and the second auger 700, ensuring that the augers can rotate freely within the casing 400 while leaving sufficient space for the sludge to be broken up and flow. The casing 400 has open channels on both sides along the first direction. These open channels allow water to flow within the casing 400, carrying away some difficult-to-filter impurities (such as stones or branches), and also facilitate the flow of the sludge broken up by the augers towards the trough 122, preventing sludge from accumulating within the casing 400.

[0043] Please see Figure 1 , Figure 2 and Figure 5 The cover 400 has an inlet 410 on the side near the shovel 200. The inlet 410 is set along the length of the cover 400 and the length is the same as the length of the cover 400. The position of the inlet 410 corresponds to the front end of the shovel 200, so that the sludge shoveled by the shovel 200 can smoothly enter the cover 400.

[0044] The first drive unit 500 is mounted on the first shaft 110 of the first connecting part 100, and is used to drive the first auger 300 to rotate, thereby driving the second auger 700 to rotate synchronously. The first drive unit 500 uses a waterproof motor, which is waterproof, dustproof, and corrosion-resistant, and can adapt to long-term underwater operating environments, meeting the motor protection requirements in SC / T 6025—2006 "Underwater Dredging Machine". The first drive unit 500 is fixedly mounted on the first shaft 110, and its output shaft is connected to the rotating shafts of the first auger 300 and the second auger 700 through a coupling. The rotational speed can be flexibly adjusted according to the viscosity of the sludge and the crushing requirements.

[0045] In addition, both the first drive unit 500 and the second drive unit 800 are equipped with waterproof junction boxes. The junction boxes have a sealed structure to prevent water from entering and causing short circuits. Waterproof connectors are provided on the junction boxes for easy wire connection. Meanwhile, the control switches for the drive units are located on a control console on the shore, allowing operators to remotely control the operation of the drive units without having to go into the water, thus improving operational safety and convenience.

[0046] The adsorption component 600 is located on one side of the first connecting part 100, specifically above the first shaft 110, and communicates with the first housing 121 of the filter unit 120. It is used to adsorb and transport the filtered sludge, broken up by the first auger 300 and the second auger 700, to a sludge collection device (such as a sludge tank or transport vehicle) on the shore. The adsorption component 600 uses a submersible sewage pump, which is characterized by its small size, light weight, strong suction, and good waterproof performance.

[0047] The adsorption element 600 is fixedly installed on the first shaft 110. Its inlet is connected to the interface of the first housing 121 through a pipe, and its outlet is connected to the silt collection device on the bank through a pipe. The length of the pipe can be flexibly set according to the working distance.

[0048] The operation of the adsorption unit 600 is controlled by a control console on the shore. The suction power can be adjusted according to the adsorption of silt. When the silt concentration is high, the suction power is increased to improve adsorption efficiency; when the silt concentration is low, the suction power is decreased to reduce energy consumption. At the same time, the adsorption unit 600 is also equipped with an overload protection device. When the adsorption unit 600 becomes clogged or overloaded, the power supply is automatically cut off to protect the equipment from damage.

[0049] Please see Figure 1 , Figure 2 and Figure 3To further improve the guiding effect of sludge and prevent sludge accumulation at the inlet 410 while suppressing sludge overflow, a guide member 900 is provided on the side of the cover 400 away from the first connecting part 100 in this embodiment. The function of the guide member 900 is to introduce water flow from outside the cover 400 into the inlet 410, forming a local circulation, which carries the sludge into the cover 400, while reducing sludge overflow. The guide member 900 includes a connector 910, a mounting hole 920, a spiral wheel 930, and a filter cover 940.

[0050] The connector 910 is made of stainless steel and is fixedly installed on the outside of the cover 400 by bolts. Its length is the same as that of the cover 400. Mounting holes 920 are formed on the connector 910 and are evenly distributed along the length of the connector 910, with a quantity of 3 to 5. The axial direction of the mounting holes 920 is towards the inlet 410 of the cover 400 to ensure that water can be introduced into the inlet 410 when the spiral wheel 930 rotates.

[0051] The propeller 930 is rotatably mounted within the mounting hole 920, with its axis coinciding with the axis of the mounting hole 920. The propeller 930 is made of stainless steel and includes a hub and helical blades, with the helical blades welded to the hub. The propeller 930 has an integrated waterproof motor that only requires external power to operate. Furthermore, the motor of the propeller 930 has excellent waterproof performance (IP68 rating), allowing for long-term stable underwater operation, and conforms to the waterproof design standards for underwater drive equipment.

[0052] The filter cover 940 is fixedly installed on the connector 910 at the mounting hole 920. It is made of stainless steel woven mesh with a mesh size of 100 mm. It is used to prevent stones, debris and other objects from the bottom of the water from entering the auger 930, protect the motor and blades of the auger 930 and avoid damage to the auger 930.

[0053] When the screw wheel 930 is running, the motor drives the screw wheel 930 to rotate, drawing water from outside the cover 400 into the mounting hole 920 and guiding it to the inlet 410 of the cover 400, forming a local circulation. The water flow can form a water curtain at the inlet 410, suppressing the overflow of sludge, reducing water disturbance, and further avoiding secondary pollution.

[0054] It should be understood that the various forms of processes shown above can be used to rearrange, add, or delete steps. For example, the steps described in this disclosure can be executed in parallel, sequentially, or in different orders, as long as the desired result of the technical solution disclosed in this disclosure can be achieved, and this is not limited herein.

[0055] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this disclosure, "a plurality of" means two or more, unless otherwise explicitly specified.

[0056] The above description is merely a specific embodiment of this disclosure, but the scope of protection of this disclosure is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this disclosure should be included within the scope of protection of this disclosure. Therefore, the scope of protection of this disclosure should be determined by the scope of the claims.

Claims

1. A low-disturbance silt removal device suitable for shallow water areas, characterized in that, Includes a first connecting part (100); A shovel plate (200) is disposed on a first connecting part (100), and the length direction of the shovel plate (200) is in the same direction as the length direction of the first connecting part (100); The first auger (300) is rotatably disposed on one side of a connecting part, the first auger (300) is axially disposed along a first direction, and the first auger (300) is disposed along a second direction on one side of the shovel plate (200); A cover (400) is provided on the first connecting part (100), the first auger (300) is located inside the cover (400), the length direction of the cover (400) is in the same direction as the axial direction of the first auger (300), and a feed inlet (410) is provided on the side of the cover (400) near the shovel plate (200) to facilitate the sludge shoveled by the shovel plate (200) to enter the cover (400); A first driving member (500) is disposed on a first connecting part (100) and drives a first auger (300) to rotate. An adsorption element (600) is disposed on one side of the first connecting part (100) and the adsorption element (600) is used to adsorb the sludge decomposed by the first screw conveyor (300).

2. The low-disturbance sludge removal device suitable for shallow water areas according to claim 1, characterized in that, The low-disturbance sludge cleaning device suitable for shallow water areas also includes a second auger (700), which is located inside the housing (400). The axial direction of the first auger (300) coincides with that of the second auger (700), and the spiral direction of the second auger (700) is opposite to that of the first auger (300).

3. The low-disturbance sludge removal device suitable for shallow water areas according to claim 1, characterized in that, The shovel plate (200) is rotatably mounted on the first connecting part (100), and the first connecting part (100) is provided with a second driving member (800) for driving the shovel plate (200) to rotate.

4. The low-disturbance sludge removal device suitable for shallow water areas according to claim 2, characterized in that, The first connecting part (100) includes, A first shaft (110) extends along a first direction, and the shovel plate (200) is rotatably mounted on the first shaft (110); A filter unit (120) is provided on the first shaft (110). The filter unit (120) is located on one side of the first auger (300) and the second auger (700). The filter unit (120) is connected to the adsorption element (600) and is used to filter out impurities in the sludge. The working arm (130) is located on one side of the first shaft (110) and the working arm (130) drives the first shaft (110) to move along a set direction on the bottom of the water.

5. The low-disturbance sludge removal device suitable for shallow water areas according to claim 4, characterized in that, The filter unit (120) includes, The first housing (121) is fixedly installed on the surface of the cover (400) and is connected to the adsorption element (600); The slot (122) is formed on the cover (400), and the first housing (121) is connected to the slot (122); The filter screen (123) is fixedly installed on the side of the first housing (121) facing the slot (122). The filter screen (123) is arc-shaped and adapted to the inner wall of the cover (400).

6. The low-disturbance sludge removal device suitable for shallow water areas according to claim 2, characterized in that, The cover (400) is arc-shaped, and the axial direction of the arc of the cover (400) coincides with the axial direction of the first auger (300) and the second auger (700). The two sides of the cover (400) along the first direction are open channels.

7. The low-disturbance sludge removal device suitable for shallow water areas according to claim 1, characterized in that, A guide (900) is provided on the side of the cover (400) away from the first connection part (100), the guide (900) being used to introduce water flow from outside the cover (400) into the feed inlet (410).

8. The low-disturbance sludge removal device suitable for shallow water areas according to claim 7, characterized in that, The drainage element (900) includes, A connector (910) is fixedly installed on the cover (400), and the length direction of the connector (910) is the same as the length direction of the cover (400). Mounting hole (920) is provided on connector (910) and the mounting hole (920) is axially oriented toward the feed port (410) of cover (400); A spiral wheel (930) is rotatably disposed in a mounting hole (920), and the axis of the spiral wheel (930) coincides with the axis of the mounting hole (920). A filter cover (940) is fixedly mounted on a connector (910) and located at a mounting hole (920), and a spiral wheel (930) is located inside the filter cover (940).

9. The low-disturbance sludge removal device suitable for shallow water areas according to claim 1, characterized in that, The shovel plate (200) has multiple comb teeth (210) on the side away from the first connecting part (100).

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