Bottom-attaching reciprocating type sewage pool desilting system and method

Abstract

The invention discloses a bottom-attaching reciprocating type sewage pool desilting system and method.The sewage pool desilting system comprises a desilting ROV robot, the bottom of the desilting ROV robot is connected with a bottom-attaching type suction module through two traction arms, a suction opening of the bottom-attaching type suction module is connected with a suction pipe, a suction pump is arranged on the suction pipe, and the bottom of the bottom-attaching type suction module is connected with a water pump; the tail end of the suction pipe is fixed in the sewage filtering tank; a jet orifice at the front end of the bottom-attached suction module is connected with a jet pipe, a centrifugal pump is arranged on the jet pipe, a high-pressure jet nozzle is mounted on the jet orifice of the bottom-attached suction module, and the high-pressure jet nozzle is controlled by an electromagnetic valve and used for accurately adjusting water pressure and flow, effectively washing sludge at the bottom of a sewage pool and quickly loosening sediments. The operation time is shortened, and the operation cost is reduced; therefore, the bottom-attached suction module can be tightly attached to the water bottom of the sewage pool, comprehensive contact and scouring dredging of sediments are ensured, and the safety and efficiency of dredging operation are remarkably improved.

Description

Technical Field

[0001] The invention belongs to the technical field of dredging treatment, and in particular relates to a bottom-attached reciprocating sewage pool dredging system and method. Background Art

[0002] Sewage treatment tanks are infrastructure specially designed for collecting, storing and treating sewage. Sewage comes from various sources, including but not limited to industrial wastewater generated during industrial production, sewage generated in daily life, and rainwater formed after rainfall. These sewage contain a large amount of suspended solid particles. When they are left standing in the sewage treatment tank, they will settle and form sediments, namely sludge. The accumulation of sludge will reduce the effective volume of the sewage treatment tank, and sometimes cause pipe blockage and produce harmful gases, posing a potential threat to the environment and human health. However, as a potential resource, sludge can be converted into fertilizer or soil conditioner through proper treatment to achieve resource reuse. Therefore, regular desilting of sewage treatment tanks is essential for environmental protection and maintaining the normal operation of industry and daily life.

[0003] At present, the desilting work of sewage treatment pools mainly relies on manual operation. This method is not only costly and time-consuming, but also poses a serious threat to the health of desilting workers due to the possible presence of harmful or even toxic gases in sewage treatment pools, and may even lead to death in extreme cases. The mechanical desilting technology of existing sewage treatment pools is insufficient and the reasons are as follows: 1. Some devices are not flexible enough, and guide rails need to be installed around the pool. The desilting device is moved by moving the guide rails for desilting. The device is difficult to dismantle and move, and is usually only used in a fixed sewage pool, which limits the use of this technology. 2. The current sewage treatment facilities have significant deficiencies in automation and rely heavily on manual operation. During the desilting operation, on the one hand, operators need to observe and operate near the pool, which puts them at risk of exposure to harmful gases; on the other hand, because the desilting operation is carried out in turbid water and the existing desilting equipment lacks video monitoring devices, the operators cannot fully understand the treatment of the sludge. This limitation not only reduces the desilting efficiency, but also increases the operation risk, and is not conducive to the evaluation and monitoring of the desilting effect. 3. The lack of dewatering treatment for the cleaned sludge results in huge volume and weight of the sludge, making it difficult to recycle and reuse.

[0004] Therefore, there is an urgent need to develop a dredging system that can quickly and conveniently perform dredging operations in different types of sewage treatment pools to improve dredging efficiency, reduce operation risks, and ensure the health and safety of operators. Summary of the invention

[0005] The present invention provides a bottom-closed reciprocating sewage pool dredging system and method to solve the problems of insufficient operational flexibility, low dredging efficiency and high operational costs in existing underwater dredging technologies. The present invention aims to significantly improve the flexibility of dredging operations and adapt to a variety of complex operating environments. By optimizing the dredging method and improving the operating efficiency, the dredging cost can be greatly reduced while ensuring the operational quality.

[0006] To solve the above problems, the technical solution provided by the present invention is as follows: The embodiment of the present invention provides a bottom-attached reciprocating sewage pool desilting system, comprising a desilting ROV robot (4), the bottom of the desilting ROV robot (4) being connected to a bottom-attached suction module (8) via two traction arms (7), the suction port of the bottom-attached suction module (8) being connected to a suction pipe (5), the suction pipe (5) being provided with a suction pump (2), and the end of the suction pipe (5) being fixed in a sewage filtering pool (1); the jet port at the front end of the bottom-attached suction module (8) being connected to a jet pipe (6), the jet pipe (6) being provided with a centrifugal pump (3), the jet port of the bottom-attached suction module (8) being installed with a high-pressure jet nozzle (9), the high-pressure jet nozzle (9) being controlled by a solenoid valve and being used to accurately adjust the water pressure and flow rate, so as to effectively flush the silt at the bottom of the sewage pool (17).

[0007] In an optional embodiment of the present invention, flexible shielding brushes (10) are installed around the bottom-attached suction module (8) to prevent the spread of sludge washed down, thereby ensuring that the sludge in the working area does not spread.

[0008] In an optional embodiment of the present invention, a bottom-adhering mud sled slide plate (11) is installed at the bottom of the bottom-adhering suction module (8) so as to be able to closely adhere to the bottom of the sewage pool (17) to achieve a thorough silt removal effect.

[0009] In an optional embodiment of the present invention, the top of the bottom-attached suction module (8) is connected to a cleaning shovel (16) via a rotating shaft (15), and the cleaning shovel (16) is used to isolate the water flow and form a local closed flow field.

[0010] In an optional embodiment of the present invention, the dredging ROV robot (4) is provided with four screw propellers (12) on the left and right sides respectively, and the eight screw propellers (12) are used to enable the robot to move flexibly underwater; the front side of the dredging ROV robot (4) is provided with a camera and a light source (13) and a sonar system (14); the camera and the light source (13) are used to provide a clear underwater field of view, so that an operator can monitor the operation process in real time; the sonar system (14) is used to detect underwater obstacles and terrain, and provide accurate positioning information for the robot.

[0011] In an optional embodiment of the present invention, the suction pipe (5) and the jet pipe (6) are also connected to the traction arm (7) to ensure that the high-pressure water flow and suction effect can efficiently cover the working area.

[0012] The embodiment of the present invention provides a bottom-attached reciprocating sewage pool dredging method, which is implemented by using a bottom-attached reciprocating sewage pool dredging system of the above embodiment, and includes the following steps: Step 1, when the dredging process starts, the operator slowly puts the dredging ROV robot (4) into the sewage pool, the bottom of the dredging ROV robot (4) is connected to the bottom-attached suction module (8) through the traction arm (7), the bottom-attached suction module (8) is attached to the bottom of the sewage pool (17), and the high-pressure jet nozzle (9) at the front end of the bottom-attached suction module (8) releases a high-pressure water flow under the control of the solenoid valve to flush the silt deposited in the sewage pool (17), so that the silt is loosened and ready to be collected; Step 2: The flexible shielding brushes (10) around the bottom-attached suction module (8) are lowered to prevent the washed sludge from spreading to non-operating areas and avoid secondary pollution; at the same time, the suction pump (2) effectively sucks the washed sludge through the suction pipe (5) and transports it to the sewage filter tank (1); Step 3, the collected sludge is then dewatered in the sewage filtration tank (1) to reduce its volume and weight, and the collected water is discharged back into the sewage tank (17). During the dredging process, the sonar system (14) continuously detects underwater obstacles and terrain, providing the operator with real-time underwater environmental information to ensure the safety and accuracy of the operation; the operator monitors the dredging process through the camera and light source (13), and uses the propeller (12) to adjust the position of the dredging ROV robot (4) to ensure that all areas are thoroughly cleaned; through this reciprocating motion, the dredging ROV robot (4) flushes and collects the sediment in the sewage tank (17) layer by layer until the sludge at the bottom of the entire sewage tank is completely removed, thereby restoring the effective volume of the sewage treatment tank and reducing the potential threat of the dredging process to the environment and human health.

[0013] Compared with the prior art, the embodiments of the present invention provide a bottom-attached reciprocating sewage pool dredging system and method, which have the following beneficial effects: (1) Improving the safety and efficiency of dredging operations: The present invention significantly improves the safety and efficiency of dredging operations by adopting a bottom-attached reciprocating dredging system. By using miniaturized and lightweight equipment combined with high-precision underwater sonar sensors, operators can perform remote operations in an environment far away from the sewage pool, thereby avoiding the risk of direct contact with harmful gases. In addition, the use of high-pressure jet nozzles and flexible shielding brushes makes the dredging process more efficient, can quickly remove sediments, and reduces operation time and costs. At the same time, by optimizing the movement trajectory and speed of the equipment, the time for cleaning sludge is reduced and the dredging efficiency is improved. (2) Enhance the adaptability and flexibility of the sewage pool desilting system: The desilting system designed by the present invention uses high-strength lightweight materials, making the equipment lighter and easier to move. This design allows the sewage pool desilting system to be used in a variety of complex underwater environments, including narrow waterways and deep water areas. The reciprocating motion and bottom-attached design of the sewage pool desilting system enable it to clean sediment layer by layer, ensuring the thoroughness of desilting, while improving the flexibility and adaptability of the equipment.

[0014] (3) Promote the resource utilization of sludge: The bottom-attached design of the dredging system of the present invention enables the dredging components to fit closely to the bottom of the water, ensuring full contact and flushing of sediments, increasing the volume and weight of sludge, and facilitating subsequent dewatering and resource utilization. This design helps to convert sludge into fertilizer or soil conditioner, realize resource reuse, and reduce pollution to the environment and harm to human health. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the embodiments or the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0016] Figure 1 A schematic diagram of a bottom-attached reciprocating sewage pool dredging system provided in an embodiment of the present application.

[0017] Figure 2 A schematic diagram of the structure of a dredging ROV robot for a bottom-attached reciprocating sewage pool dredging system provided in an embodiment of the present application.

[0018] Figure 3 A schematic diagram of the structure of a bottom-attached suction module of a bottom-attached reciprocating sewage pool desilting system provided in an embodiment of the present application.

[0019] Figure 4 A schematic diagram of a bottom-attached reciprocating sewage pool dredging system provided in an embodiment of the present application being placed into a sewage pool.

[0020] Figure 5 A schematic diagram of a bottom-attached reciprocating sewage pool dredging system provided in an embodiment of the present application, operating in a sewage pool. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present application will be described clearly and completely below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present application.

[0022] like Figure 1 to Figure 5 As shown, an embodiment of the present invention provides a bottom-attached reciprocating sewage pool dredging system, including a dredging ROV robot 4. The dredging ROV robot 4 is the core component of the sewage pool dredging system, and is composed of multiple key components that work together to achieve efficient dredging operations. The main body of the dredging ROV robot 4 is designed to be lightweight and durable, and is made of high-strength lightweight materials (such as aluminum alloy and carbon fiber) to ensure stability and flexibility during underwater operations. At the same time, the internal layout of the dredging ROV robot 4 is optimized to achieve lightweight and miniaturization of the equipment, improve the portability and flexibility of the equipment, and enable the equipment to easily adapt to complex underwater environments such as narrow and deep waters.

[0023] Specifically, Figure 1 , Figure 2 and Figure 3 As shown, the bottom of the dredging ROV robot 4 is connected to a bottom-attached suction module 8 through two traction arms 7, and the suction port of the bottom-attached suction module 8 is connected to a suction pipe 5, on which a suction pump 2 is provided, and the end of the suction pipe 5 is fixed in the sewage filter tank 1. The jet port at the front end of the bottom-attached suction module 8 is connected to a jet pipe 6, on which a centrifugal pump 3 is provided, and the jet port of the bottom-attached suction module 8 is installed with a high-pressure jet nozzle 9, which is controlled by a solenoid valve and is used to accurately adjust the water pressure and flow rate to effectively flush the silt at the bottom of the sewage tank 17. The suction pipe 5 and the jet pipe 6 form a dynamic flow balance inside the underwater operation area, which can reduce the fluid exchange inside and outside the bottom-attached suction module 8. The suction pipe 5 and the jet pipe 6 in this embodiment are connected to the traction arm 7 to ensure that the high-pressure water flow and suction action can efficiently cover the operation area.

[0024] like Figure 2 As shown, the bottom suction module 8 is equipped with flexible shielding brushes 10 around it to prevent the sludge washed down from spreading and ensure the cleanliness of the working area. The bottom of the bottom suction module 8 is equipped with a bottom mud sled slide 11 to fit tightly to the bottom of the sewage pool 17 to achieve a thorough desilting effect. Figure 3 As shown, a cleaning shovel 16 is connected to the top of the bottom-attached suction module 8 via a rotating shaft 15. The cleaning shovel 16 is used to isolate the water flow and form a local closed flow field.

[0025] like Figure 2 As shown, four screw propellers 12 are respectively arranged on the left and right sides of the dredging ROV robot 4, and the eight screw propellers 12 are used to enable the robot to move flexibly underwater. A camera and a light source 13 and a sonar system 14 are arranged on the front side of the dredging ROV robot 4. The camera and the light source 13 are used to provide a clear underwater field of view, so that the operator can monitor the operation process in real time. The sonar system 14 detects the position of underwater obstacles, underwater obstacles and terrain by transmitting and receiving ultrasonic signals, and provides accurate positioning information for the dredging ROV robot 4.

[0026] The sewage pool desilting system uses a screw propeller 12 to adjust the position of the desilting ROV robot 4 to ensure that all areas are thoroughly cleaned. Through reciprocating motion, the sediment is flushed and collected layer by layer. By optimizing the motion trajectory and speed, the desilting efficiency and operation quality are improved to ensure the thoroughness of the desilting.

[0027] The embodiment of the present invention further provides a bottom-attached reciprocating sewage pool dredging method, which is implemented by using a bottom-attached reciprocating sewage pool dredging system as in the above embodiment, and includes the following steps: Step 1, at the beginning of the dredging process, the operator slowly puts the dredging ROV robot 4 into the sewage pool, the bottom of the dredging ROV robot 4 is connected to the bottom-attached suction module 8 through the traction arm 7, the bottom-attached suction module 8 is attached to the bottom of the sewage pool 17, and the high-pressure jet nozzle 9 at the front end of the bottom-attached suction module 8 releases a high-pressure water flow under the control of the solenoid valve to flush the silt deposited in the sewage pool 17, so that the silt is loosened and ready to be collected, refer to Figure 4 .

[0028] Step 2: The flexible shielding brushes 10 around the bottom-attached suction module 8 are lowered to prevent the washed sludge from spreading to the non-operating area to avoid secondary pollution; at the same time, the suction pump 2 effectively sucks the washed sludge through the suction pipe 5 and transports it to the sewage filter tank 1. Figure 5 .

[0029] Step 3, the collected sludge is then dewatered in the sewage filtration tank 1 to reduce its volume and weight, and the collected water is discharged back into the sewage tank 17. During the dredging process, the sonar system 14 continuously detects underwater obstacles and terrain, and provides real-time underwater environmental information to the operator to ensure the safety and accuracy of the operation; the operator monitors the dredging process through the camera and light source 13, and uses the propeller 12 to adjust the position of the dredging ROV robot 4 to ensure that all areas are thoroughly cleaned; through this reciprocating motion, the dredging ROV robot 4 flushes and collects the sediment in the sewage tank 17 layer by layer until the sludge at the bottom of the entire sewage tank is completely removed, thereby restoring the effective volume of the sewage treatment tank and reducing the potential threat of the dredging process to the environment and human health.

[0030] A bottom-attached reciprocating sewage pool dredging system and method has the following innovative features: Innovation 1: The sewage pool dredging system is a multifunctional miniaturized equipment that can be adapted to a variety of dredging scenarios. Traditional dredging equipment is often bulky, complicated to operate, and limited to a specific operating environment. The present invention significantly improves the portability and flexibility of the equipment by designing miniaturized dredging equipment, making it suitable for a variety of complex dredging scenarios, including narrow waterways, deep water areas, and environments that require frequent mobile operations. More importantly, the small sewage pool dredging system integrates an underwater sonar (ultrasonic positioning) device that can accurately measure underwater terrain and obstacle locations, and provide operators with real-time underwater environmental information. This not only helps to ensure the safety and accuracy of dredging operations, but also enables the equipment to flexibly adjust operating strategies in complex and changeable underwater environments, further improving operating efficiency.

[0031] Innovation 2: Combining jet erosion with flexible shielding brushes to improve dredging efficiency. In the dredging process, how to efficiently flush and collect sediments from the bottom of the water is the key to improving work efficiency. The present invention uses jet erosion technology to flush the silt with high-pressure water flow to loosen it and make it easy to collect. This technology can not only effectively remove hard silt, but also reduce the damage of equipment to equipment such as pipes at the bottom of the pool. At the same time, a flexible shielding brush is introduced to guide and control the surrounding water flow to prevent the flushed silt from spreading to non-operating areas, avoiding secondary pollution and waste of resources.

[0032] Innovation point 3: Bottom-fitting reciprocating dredging design to achieve thorough cleaning. Traditional dredging equipment often finds it difficult to thoroughly clean sediments during operation, especially when the water depth is large or the sediments are relatively dense. The present invention adopts a bottom-fitting design so that the dredging components of the sewage pool dredging system can fit closely to the bottom of the water, ensuring full contact and flushing of the sediments. Through reciprocating motion, the sediments are flushed and collected layer by layer, ensuring the thoroughness of dredging, while improving the flexibility and adaptability of the sewage pool dredging system.

[0033] In summary, although the present invention has been disclosed as above in terms of preferred embodiments, the above preferred embodiments are not intended to limit the present invention. A person skilled in the art may make various changes and modifications without departing from the spirit and scope of the present invention. Therefore, the scope of protection of the present invention shall be based on the scope defined in the claims.

Claims

1. A bottom-attached reciprocating sewage pool dredging system, characterized in that: The invention comprises a silt-clearing ROV robot (4), the bottom of which is connected to a bottom-attached suction module (8) via two traction arms (7), the suction port of the bottom-attached suction module (8) being connected to a suction pipe (5), the suction pipe (5) being provided with a suction pump (2), and the end of the suction pipe (5) being fixed in a sewage filter pool (1); the jet port at the front end of the bottom-attached suction module (8) being connected to a jet pipe (6), the jet pipe (6) being provided with a centrifugal pump (3), the jet port of the bottom-attached suction module (8) being installed with a high-pressure jet nozzle (9), the high-pressure jet nozzle (9) being controlled by a solenoid valve and being used for accurately adjusting the water pressure and flow rate, so as to effectively flush the silt at the bottom of the sewage pool (17).

2. A bottom-attached reciprocating sewage pool desilting system according to claim 1, characterized in that: The bottom-attached suction module (8) is provided with flexible shielding brushes (10) around its periphery to prevent the spread of sludge washed down, thereby ensuring that the sludge in the working area does not spread.

3. The bottom-attached reciprocating sewage pool desilting system according to claim 1 is characterized in that: A bottom-adhering mud sled slide plate (11) is installed at the bottom of the bottom-adhering suction module (8) so as to be able to closely adhere to the bottom of the sewage pool (17) to achieve a thorough silt removal effect.

4. The bottom-attached reciprocating sewage pool desilting system according to claim 1 is characterized in that: The top of the bottom-attached suction module (8) is connected to a cleaning shovel (16) via a rotating shaft (15); the cleaning shovel (16) is used to isolate the water flow and form a local closed flow field.

5. The bottom-attached reciprocating sewage pool desilting system according to claim 1 is characterized in that: The dredging ROV robot (4) is provided with four screw propellers (12) on the left and right sides respectively, and the eight screw propellers (12) are used to enable the robot to move flexibly underwater; the front side of the dredging ROV robot (4) is provided with a camera and a light source (13) and a sonar system (14); the camera and the light source (13) are used to provide a clear underwater field of view, so that an operator can monitor the operation process in real time; the sonar system (14) is used to detect underwater obstacles and terrain, and provide accurate positioning information for the robot.

6. The bottom-attached reciprocating sewage pool desilting system according to claim 1 is characterized in that: The suction pipe (5) and the jet pipe (6) are also connected to the traction arm (7) to ensure that the high-pressure water flow and suction effect can efficiently cover the working area.

7. A bottom-attached reciprocating sewage pool dredging method, implemented by using a bottom-attached reciprocating sewage pool dredging system as claimed in any one of claims 1 to 6, characterized in that: The following steps are involved: Step 1, when the dredging process starts, the operator slowly puts the dredging ROV robot (4) into the sewage pool, the bottom of the dredging ROV robot (4) is connected to the bottom-attached suction module (8) through the traction arm (7), the bottom-attached suction module (8) is attached to the bottom of the sewage pool (17), and the high-pressure jet nozzle (9) at the front end of the bottom-attached suction module (8) releases a high-pressure water flow under the control of the solenoid valve to flush the silt deposited in the sewage pool (17), so that the silt is loosened and ready to be collected; Step 2: The flexible shielding brushes (10) around the bottom-attached suction module (8) are lowered to prevent the washed sludge from spreading to non-operating areas and avoid secondary pollution; at the same time, the suction pump (2) effectively sucks the washed sludge through the suction pipe (5) and transports it to the sewage filter tank (1); Step 3, the collected sludge is then dewatered in the sewage filtration tank (1) to reduce its volume and weight, and the collected water is discharged back into the sewage tank (17). During the dredging process, the sonar system (14) continuously detects underwater obstacles and terrain, providing the operator with real-time underwater environmental information to ensure the safety and accuracy of the operation; the operator monitors the dredging process through the camera and light source (13), and uses the propeller (12) to adjust the position of the dredging ROV robot (4) to ensure that all areas are thoroughly cleaned; through this reciprocating motion, the dredging ROV robot (4) flushes and collects the sediment in the sewage tank (17) layer by layer until the sludge at the bottom of the entire sewage tank is completely removed, thereby restoring the effective volume of the sewage treatment tank and reducing the potential threat of the dredging process to the environment and human health.

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