A device for treating sludge from water conservancy engineering construction

Abstract

This invention belongs to the technical field of sludge treatment equipment, specifically a sludge treatment device for water conservancy engineering construction, including a dredging vessel, a sludge pump, and a suction pipe; it also includes a closed dredging component installed at the end of the suction pipe. This closed dredging component reduces the diffusion of sludge in the water by sealing off the dredging area. By setting up a cover, the invention separates the sludge from the water during the dredging process. When the sludge is disturbed, the cover blocks the spreading sludge. Combined with the continuous negative pressure extraction by the suction pipe, the agitated sludge is quickly extracted, thereby reducing water pollution during the dredging process. Simultaneously, the impact pump and impact pipe increase the sludge cleaning efficiency, effectively enhancing the sludge treatment effect.

Description

Technical Field

[0001] This invention belongs to the technical field of sludge treatment equipment, specifically a sludge treatment device for water conservancy engineering construction. Background Technology

[0002] Controlling the silt content in wetland ecosystems during long-term use is one of the necessary measures to maintain the purification efficiency and effectiveness of wetland ecosystems.

[0003] When dredging wetland ecosystems underwater, dredging equipment is usually mounted on a dredging vessel to clean the underwater silt from the water's surface. In conventional techniques, underwater dredging equipment is generally classified into grab bucket dredging, pump suction dredging, and ordinary cutter suction dredging. In practical applications, grab bucket dredging directly grabs underwater silt, while pump suction dredging and ordinary agitation suction dredging require stirring the silt before it is pumped out by a sludge pump. In actual dredging processes, all three methods have the drawback of disturbing the water and silt. During dredging, not only is it easy for silt to rise and the water to become turbid, but the disturbance to the water also reduces the efficiency of silt extraction and results in poor dredging efficiency.

[0004] In order to reduce the disturbance to the water body during the dredging process, an underwater dredging device for sludge treatment in water conservancy projects has been disclosed in the related technology (disclosure number CN112962703A). In this scheme, the device is installed on the upper part of the lifting equipment of the ship by a lifting ring and inserted into the river. The bottom box is triangular prism-shaped, which makes it easy to stabilize the device after it is inserted into the river and prevents it from tipping over. The sludge on both sides can be piled up to the outside of the dredging device by the positive and negative motors, which facilitates the cleaning of the sludge. However, when this scheme is used, the sludge will still spread outward, causing secondary pollution to the water body. Moreover, without disturbing the sludge, the sludge cleaning is difficult and not conducive to the rapid progress of dredging work.

[0005] In view of this, the present invention proposes a device for treating silt from water conservancy engineering construction, which is used to solve the above-mentioned technical problems. Summary of the Invention

[0006] To overcome the shortcomings of existing technologies and solve the aforementioned technical problems, this invention proposes a device for treating silt from water conservancy engineering construction.

[0007] The technical solution adopted by the present invention to solve its technical problem is: a sludge treatment device for water conservancy engineering construction, comprising a dredging vessel, a sludge pump and a suction pipe;

[0008] It also includes a closed dredging component, which is installed at the end of the suction pipe. The closed dredging component reduces the diffusion of sludge in the water by closing the dredging area.

[0009] The enclosed dredging assembly includes a cover, an impact pump, and an impact pipe;

[0010] The cover is installed at the end of the suction pipe. The cover is a sheet-like structure. The cover covers the silt. The suction pipe is located at the center of the cover.

[0011] The impact pump is fixedly installed on the dredging vessel, and an impact pipe is installed at the output end of the impact pump. The impact pipe extends to the bottom of the cover and the opening of the impact pipe faces the suction pipe.

[0012] Preferably, it also includes an unfolding and folding assembly, which is used to control the unfolding and folding of the cover for storage;

[0013] The deployment and retraction assembly includes a mounting frame, an extension frame, a deflector rod, and a telescopic rod;

[0014] The cover is made of flexible material, the mounting frame is fixedly installed in the middle of the cover, the extension frame is symmetrically distributed on both sides of the mounting frame, and the two ends of the cover are fixedly connected to the extension frame respectively;

[0015] Telescopic rods are fixedly installed on both sides of the mounting frame. A deflector rod is hinged to the output end of the telescopic rod, and the end of the deflector rod away from the telescopic rod is hinged to the extension frame.

[0016] Preferably, the deflection rods are symmetrically installed at both ends of the telescopic rod, and the telescopic rod is a bidirectional output rod.

[0017] Preferably, the unfolding and retracting assembly further includes a reel and a coil spring;

[0018] Each extension frame has a winding cavity, which is designed to open towards the mounting frame. The winding shaft is rotatably installed in the winding cavity, and the coil spring is fixedly installed on the winding shaft. The end of the coil spring away from the winding shaft is fixedly connected to the extension frame.

[0019] Preferably, a drive belt is fixedly installed on the reel, and the end of the drive belt away from the reel is fixedly installed on the mounting bracket, and the length of the drive belt is less than the length of the cover.

[0020] Preferably, each of the extension frames is fixedly equipped with a scraper, which is located at the opening of the winding cavity and is used to scrape the surface of the cover.

[0021] Preferably, the telescopic rod consists of a fixed end, a telescopic end, and a connecting spring. The fixed end is open at both ends, and the telescopic end is slidably sealed at both ends of the telescopic end. The impact tube has a three-section design, and all three impact tube sections are fixedly installed on the fixed end. One impact tube section is connected to the impact pump, and the other two impact tube sections extend to both ends of the cover. A pressure valve is installed inside the impact tube extending to the bottom of the cover. The opening pressure of the pressure valve is greater than the elastic force of the connecting spring.

[0022] Preferably, a symmetrically designed gravity strip is fixedly installed on the cover, the gravity strip is designed perpendicular to the extension frame, and the gravity strip is made of a flexible rubber material with built-in lead blocks.

[0023] Preferably, the impact tube extends into the gravity strip, and the impact tube has multiple openings below the cover, with the multiple openings evenly arranged along the length of the gravity strip.

[0024] The beneficial effects of this invention are as follows:

[0025] 1. The sludge treatment device for water conservancy engineering construction of the present invention, by setting a cover, separates the sludge from the water during the dredging process. When the sludge is disturbed, the cover blocks the spreading sludge. With the continuous negative pressure extraction by the suction pipe, the stirred sludge is quickly extracted, thereby reducing the pollution of the water body during the dredging process. At the same time, with the help of the impact pump and impact pipe, the sludge cleaning efficiency is increased, thereby effectively enhancing the sludge treatment effect.

[0026] 2. The sludge treatment device for water conservancy construction described in this invention, by setting up an unfolding and retracting component, expands and retracts the cover, thereby reducing the volume of the cover during movement, thus reducing the resistance of the equipment movement, and reducing the disturbance of the cover and other structures to the water body and sludge. During the dredging process, it effectively reduces the degree of sludge diffusion into the water body and reduces the degree of pollution to the water body. Attached Figure Description

[0027] The invention will now be further described with reference to the accompanying drawings.

[0028] Figure 1 This is a perspective view of the present invention;

[0029] Figure 2 This is a perspective view of the cover in the retracted state in this invention;

[0030] Figure 3 yes Figure 2 Enlarged view of a portion of point A in the middle;

[0031] Figure 4 This is a perspective view of the cover in the unfolded state in this invention;

[0032] Figure 5 It is a 3D view of the assembly of the impact tube and the telescopic rod;

[0033] Figure 6 This is a sectional view of the extension frame;

[0034] Figure 7 This is a sectional view of the telescopic pole;

[0035] Figure 8 It is a 3D view of the assembly of the impact tube and the gravity strip;

[0036] In the diagram: 1. Dredging vessel; 11. Sludge pump; 12. Suction pipe; 2. Cover; 21. Impact pump; 22. Impact pipe; 23. Mounting frame; 24. Extension frame; 25. Deflection rod; 3. Telescopic rod; 31. Fixed end; 32. Telescopic end; 33. Connecting spring; 34. Pressure valve; 4. Winding cavity; 41. Reel; 42. Coil spring; 43. Drive belt; 44. Scraper; 5. Gravity bar. Detailed Implementation

[0037] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0038] like Figures 1 to 8 As shown, the present invention discloses a sludge treatment device for water conservancy engineering construction, comprising a dredging vessel 1, a sludge pump 11, and a suction pipe 12, and further comprising a closed dredging component. The closed dredging component is installed at the end of the suction pipe 12. The closed dredging component reduces the diffusion of sludge in the water by closing the dredging area. The closed dredging component includes a cover 2, an impact pump 21, and an impact pipe 22. The cover 2 is installed at the end of the suction pipe 12 and is a sheet-like structure. The cover 2 covers the sludge, and the suction pipe 12 is located at the center of the cover 2. During the dredging process, the cover 2 covers the sludge to be treated, and the cover 2 separates the sludge from the water. When the sludge is pumped out or disturbed, the cover 2 can block the movement and diffusion of the sludge.

[0039] The impact pump 21 is fixedly installed on the dredging vessel 1. An impact pipe 22 is installed at the output end of the impact pump 21. The impact pipe 22 extends to the bottom of the cover 2, and the opening of the impact pipe 22 faces the suction pipe 12. In this invention, the impact pump 21 is preferably an air compressor pump, which is used to draw and pump air. The impact pipe 22 guides the air, and the flow of air is used to disturb the silt.

[0040] In actual dredging operations, to enhance the suction effect of silt while reducing its diffusion into the water, this invention incorporates a closed dredging component on the suction pipe 12. During operation, the suction pipe 12 and the closed dredging component sink underwater until their ends contact the underwater silt layer. At this point, the resistance of the silt layer causes the cover layer to adhere to the silt layer. The operator then starts the silt pump 11 and the impact pump 21. After starting, the silt pump 11, in conjunction with the suction pipe 12, continuously creates negative pressure under the cover layer. In the initial stage of extraction, the less dense and more fluid silt on the surface of the silt layer is quickly extracted. Meanwhile, the impact pump 21 draws in outside air and pumps it into the impact pipe 22. Compressed air exits from the end of the impact pipe 22 and flows towards the suction pipe 12, impacting the flowing silt. During the process, the silt is impacted, and the impact force is used to agitate the silt, causing the silt layer to loosen and thus increasing the silt extraction rate. During the silt extraction process, the water outside the covered area flows along the edge of the cover 2 towards the center of the cover 2. As the extraction operation continues, the content of loose silt gradually decreases. When the silt in the covered area is extracted to a certain extent, the water content in the mud output by the silt pump 11 increases significantly. The staff can then shut down the silt pump 11 and the impact pump 21. With the help of the dredging vessel 1, the suction pipe 12 and the cover 2 are moved to a different location to carry out underwater dredging operations in the wetland. It should be noted that the dredging vessel 1 in this invention is also equipped with a hoisting device, which is connected to the end of the suction pipe 12 to control the up and down movement of the suction pipe 12, so as to facilitate the recovery of the suction pipe 12 and the closed dredging components.

[0041] This invention, by setting up a cover 2, separates the silt from the water during the dredging process. When the silt is disturbed, the cover 2 blocks the spreading silt. Combined with the continuous negative pressure extraction by the suction pipe 12, the stirred silt is quickly extracted, thereby reducing the pollution of the water during the dredging process. At the same time, in conjunction with the impact pump 21 and impact pipe 22, the silt cleaning efficiency is increased, thereby effectively enhancing the silt treatment effect.

[0042] As a preferred embodiment of the present invention, it also includes an unfolding and folding assembly, which is used to control the unfolding and folding of the cover 2 for storage. The unfolding and folding assembly includes a mounting frame 23, an extension frame 24, a deflection rod 25, and a telescopic rod 3.

[0043] The cover 2 is made of flexible material. The mounting frame 23 is fixedly installed in the middle of the cover 2. The extension frame 24 is symmetrically distributed on both sides of the mounting frame 23. The two ends of the cover 2 are fixedly connected to the extension frame 24 respectively. Telescopic rods 3 are fixedly installed on both sides of the mounting frame 23. A deflection rod 25 is hinged to the output end of the telescopic rod 3. The end of the deflection rod 25 away from the telescopic rod 3 is hinged to the extension frame 24.

[0044] The deflection rods 25 are symmetrically installed at both ends of the telescopic rod 3, which is a bidirectional output rod.

[0045] During the dredging process, to enhance the ease of underwater installation of the cover 2 and reduce disturbance to the underwater silt during assembly, this invention uses a flexible material to make the cover 2 and incorporates a retractable assembly to enhance the convenience of the dredging operation. Specifically, in the initial state, when the dredging vessel 1 is moving, the cover 2 is rolled up and stored by the retractable assembly. When the dredging vessel 1 moves to the area to be cleaned, the workers, with the assistance of the hoisting equipment, lower the suction pipe 12. Under the influence of gravity, the suction pipe 12 and its end cover 2 gradually move downwards. At this point, the cover 2 is stored by the retractable assembly, resulting in a smaller overall surface area, thus effectively reducing water resistance during descent and minimizing disturbance to the water. Furthermore, when the suction pipe 12 is lowered, the cover 2 is stored by the retractable assembly. After the end of the suction pipe 12 contacts the silt layer, the staff uses an external control device to activate the telescopic rod 3. The telescopic rod 3 slowly extends from its initial retracted state. Since both ends of the telescopic rod 3 are hinged with deflecting rods 25, and the other end of the deflecting rods 25 is hinged to the extension frame 24, as the length of the telescopic rod 3 gradually increases, the extension frame 24 gradually moves away from the telescopic rod 3 under the transmission effect of the deflecting rods 25. The cover 2 installed between the mounting frame 23 and the extension frame 24 gradually unfolds under the pulling action, thereby blocking the area to be cleaned. When moving to the cleaning position, the telescopic rod 3 is controlled to retract, which reduces the gap between the extension frame 24 and the telescopic rod 3, thereby reducing the size of the equipment and reducing the disturbance to the water body.

[0046] This invention, by setting up an unfolding and retracting component, unfolds and retracts the cover 2, which on the one hand reduces the volume of the cover 2 during movement, thereby reducing the resistance of the equipment movement, and on the other hand reduces the disturbance of the cover 2 and other structures to the water and silt. During the dredging process, it effectively reduces the degree of silt diffusion into the water and reduces the degree of water pollution.

[0047] The unfolding and retracting assembly also includes a spool 41 and a coil spring 42. Each extension frame 24 has a winding cavity 4. The winding cavity 4 is designed to open towards the mounting frame 23. The spool 41 is rotatably installed in the winding cavity 4. The coil spring 42 is fixedly installed on the spool 41, and the end of the coil spring 42 away from the spool 41 is fixedly connected to the extension frame 24.

[0048] A transmission belt 43 is fixedly installed on the reel 41. The end of the transmission belt 43 away from the reel 41 is fixedly installed on the mounting bracket 23. The length of the transmission belt 43 is less than the length of the cover 2.

[0049] To enhance the volume change effect of the cover 2 during the extension and retraction of the assembly, a winding cavity 4 is provided on the extension frame 24, and the end of the cover 2 is fixed to the reel 41. In the initial state, the cover 2 and the drive belt 43 are wound on the reel 41, and the coil spring 42 is in a contracted state. When the extension frame 24 moves away from the mounting frame 23 and the telescopic rod 3, the drive belt 43, which is shorter than the cover 2, tauts first. As the movement distance increases, the drive belt 43 pulls the reel 41 to rotate, thereby causing the cover 2 to gradually unfold, so that the cover 2 covers the area to be dredged. When the dredging is completed, the extension frame 24 gradually approaches the mounting frame 23. When the coil spring 42 loses its pulling force, it drives the reel 41 to rotate. The reverse-rotating roller 41 winds the transmission belt 43 and the cover 2. By winding the cover 2, the unfolding and retraction of the cover 2 can be made more flexible and orderly. At the same time, the transmission belt 43 makes the cover 2 less stressed during the winding and storage process. On the one hand, the cover 2 is always in a relaxed state. When the cover 2 covers the silt area, it can better adhere to the uneven silt under the action of gravity. The relaxed state can also reduce the probability of damage to the cover 2 during movement. On the other hand, it can also reduce the stress on the cover 2 during unfolding and retraction, reducing the probability of damage to the cover 2 during long-term use.

[0050] In a preferred embodiment of the present invention, each of the extension frames 24 is fixedly equipped with a scraper 44. The scraper 44 is located at the opening of the winding cavity 4. The scraper 44 is used to scrape the surface of the cover 2. During the winding process of the cover 2, the scraper 44 can scrape the surface of the cover 2 and the transmission belt 43, thereby reducing the probability of impurities such as silt entering the winding cavity 4.

[0051] In a preferred embodiment of the present invention, the telescopic rod 3 consists of a fixed end 31, a telescopic end 32, and a connecting spring 33. The fixed end 31 is open at both ends, and the telescopic end 32 is slidably sealed at both ends. The impact pipe 22 has a three-section design, and all three sections of the impact pipe 22 are fixedly installed on the fixed end 31. One section of the impact pipe 22 is connected to the impact pump 21, and the other two sections of the impact pipe 22 extend to both ends of the cover 2. A pressure valve 34 is installed inside the impact pipe 22 extending to the bottom of the cover 2. The opening pressure of the pressure valve 34 is greater than the elastic force of the connecting spring 33. During dredging operations, the telescopic rod 3 is connected to the middle of the impact pipe 22. After the impact pump 21 is started, the impact pump 21 pumps compressed air into the impact pipe 22, and the compressed air flows into the impact pipe 22. Inside the fixed end 31, under the action of gradually increasing air pressure, the telescopic end 32 pulls the connecting spring 33 and moves outward from the fixed end 31, thereby causing the cover 2 to gradually unfold. When the telescopic rod 3 is fully extended, the air pressure inside the fixed end 31 gradually exceeds the opening pressure of the pressure valve 34, causing the pressure valve 34 to open. The airflow flows into the other two impact pipes 22 and sprays below the cover 2. The connection between the telescopic rod 3 and the impact pipe 22, in conjunction with the pressure valve 34, can prevent disturbance of the sludge when the cover 2 is not unfolded during the actual dredging process, thus avoiding operator error. It should be noted that when controlling the telescopic rod 3 to retract, the operator separates the impact pipe 22 from the other pipe. At this time, under the elastic action of the connecting spring 33, the air is discharged in the opposite direction, which causes the equipment to retract.

[0052] In a preferred embodiment of the present invention, a symmetrically designed gravity strip 5 is fixedly installed on the cover 2. The gravity strip 5 is designed perpendicular to the extension frame 24. The gravity strip 5 is made of a flexible rubber material with built-in lead blocks.

[0053] The impact tube 22 extends into the gravity strip 5. The impact tube 22 has multiple openings below the cover 2, and the multiple openings are evenly arranged along the length of the gravity strip 5. The gravity strip 5, together with the cover 2 in a relaxed state, allows the cover 2 to hang down perpendicularly to both sides of the extension frame 24 after the cover 2 is fully unfolded, thereby enhancing the sealing of the area to be cleaned. At the same time, the multiple openings of the impact tube 22 increase the dispersion of compressed air in the area to be cleaned, enhancing the disturbance effect on the sludge.

[0054] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A sludge treatment device for water conservancy construction, comprising a dredging vessel (1), a sludge pump (11), and a suction pipe (12). Its characteristics are: It also includes a closed dredging component, which is installed at the end of the suction pipe (12). The closed dredging component reduces the diffusion of sludge in the water by closing the dredging range. The closed dredging assembly includes a cover (2), an impact pump (21), and an impact pipe (22). The cover (2) is installed at the end of the suction pipe (12). The cover (2) is a sheet-like structure. The cover (2) covers the silt. The suction pipe (12) is located at the center of the cover (2). The impact pump (21) is fixedly installed on the dredging vessel (1). An impact pipe (22) is installed at the output end of the impact pump (21). The impact pipe (22) extends to the bottom of the cover (2), and the opening of the impact pipe (22) faces the suction pipe (12). It also includes a unfolding and folding assembly, which is used to control the unfolding and folding of the cover (2) for storage; The deployment and retraction assembly includes a mounting frame (23), an extension frame (24), a deflection rod (25), and a telescopic rod (3). The cover (2) is made of flexible material. The mounting frame (23) is fixedly installed in the middle of the cover (2). The extension frame (24) is symmetrically distributed on both sides of the mounting frame (23). The two ends of the cover (2) are fixedly connected to the extension frame (24). Telescopic rods (3) are fixedly installed on both sides of the mounting frame (23). A deflection rod (25) is hinged to the output end of the telescopic rod (3). The end of the deflection rod (25) away from the telescopic rod (3) is hinged to the extension frame (24). The deflection rod (25) is symmetrically installed at both ends of the telescopic rod (3), and the telescopic rod (3) is a bidirectional output rod; The unfolding and retracting assembly also includes a reel (41) and a coil spring (42). Each of the extension frames (24) is provided with a winding cavity (4). The winding cavity (4) is designed to open on the side facing the mounting frame (23). The winding shaft (41) is rotatably installed in the winding cavity (4). The coil spring (42) is fixedly installed on the winding shaft (41), and the end of the coil spring (42) away from the winding shaft (41) is fixedly connected to the extension frame (24). A drive belt (43) is fixedly installed on the reel (41). The end of the drive belt (43) away from the reel (41) is fixedly installed on the mounting bracket (23). The length of the drive belt (43) is less than the length of the cover (2).

2. The sludge treatment device for water conservancy engineering construction according to claim 1, characterized in that: Each of the extension frames (24) is fixedly equipped with a scraper (44), which is located at the opening of the winding cavity (4) and is used to scrape the surface of the cover (2).

3. The sludge treatment device for water conservancy engineering construction according to claim 2, characterized in that: The telescopic rod (3) consists of a fixed end (31), a telescopic end (32) and a connecting spring (33). The fixed end (31) is open at both ends. The telescopic end (32) is slidably sealed at both ends of the telescopic end (32). The impact tube (22) is designed in three sections, and all three impact tubes (22) are fixedly installed on the fixed end (31). One section of the impact tube (22) is connected to the impact pump (21), and the other two impact tubes (22) extend to both ends of the cover (2). The impact tube (22) extending to the bottom of the cover (2) is equipped with a pressure valve (34). The opening pressure of the pressure valve (34) is greater than the elastic force of the connecting spring (33).

4. The sludge treatment device for water conservancy project construction according to claim 3, characterized in that: The cover (2) is fixedly installed with a symmetrically designed gravity strip (5), which is designed perpendicular to the extension frame (24). The gravity strip (5) is made of a flexible rubber material with built-in lead blocks.

5. The sludge treatment device for water conservancy project construction according to claim 4, characterized in that: The impact tube (22) extends into the gravity strip (5). The impact tube (22) has multiple openings located below the cover (2), and the multiple openings are evenly arranged along the length of the gravity strip (5).

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