Movable river sludge reduction online treatment equipment

Abstract

The utility model discloses movable river sludge reduction online treatment equipment which comprises a floating raft, an aeration device and a filter screen box, and the floating raft comprises pedals on two sides and buoys arranged at the lower parts of the pedals; the middle of the pedal is of an open structure, a supporting frame is arranged on the open portion of the pedal, a lifting opening is formed in the middle of the supporting frame, the filter screen box is arranged below the lifting opening, lifting rings are arranged on the two sides of the filter screen box respectively, winding devices are arranged at the corresponding positions, located above the lifting rings, of the supporting frame respectively, and steel wire ropes are wound around the winding devices. The lower end of the steel wire rope is connected; the aeration device comprises a submersible pump mounted in the filter screen box, a microporous aeration head connected with a water outlet pipe of the submersible pump, and an air inlet pipe communicated with the microporous aeration head. The device is convenient to operate and wider in application range, can play an important role in the reduction treatment process of the deposited sludge in the river channel, realizes efficient aeration, saves the cost, improves the biodegradation efficiency, and ensures the sludge reduction effect.

Description

Technical Field

[0001] This utility model relates to the field of underwater sediment sludge treatment technology, specifically to a mobile online treatment device for reducing river sludge volume. Background Technology

[0002] River sludge is a soft sediment rich in organic matter and minerals, formed by the mixture of sediment, organic matter, and pollutants deposited at the bottom of rivers. Excessive sludge deposition can severely impact river water quality and the ecological environment, thus requiring regular treatment of underwater sediment. Commonly used methods for treating underwater sediment include: 1. Biodegradation: Utilizing microorganisms to degrade organic matter in the sludge, such as anaerobic and aerobic bacteria, to decompose organic matter in the sediment, converting it into stable inorganic matter, thereby reducing sludge volume. 2. Physical treatment: Using physical methods to treat the sludge, such as mechanical stirring, ultrasound, and air flotation, to break down the sludge structure and reduce its viscosity, making it easier to settle or separate solids and liquids. 3. Chemical treatment: Using chemical agents to treat the sludge, such as adding flocculants and water purification agents, through reduction, oxidation, and precipitation chemical reactions, converting harmful substances in the sludge into harmless substances and promoting sludge settling.

[0003] When using biodegradation to reduce underwater sediment sludge volume, it is necessary to add biological agents (enzymes or bacteria) to the bottom of the water, and simultaneously aerate the water to increase oxygen supply, thereby promoting microbial activity and degradation effects, and ultimately reducing the volume of river sludge. Existing biodegradation sludge reduction processes typically use fixed-location underwater aeration devices, which are inconvenient to move after installation and cannot achieve full coverage of the underwater aeration area. This can easily lead to insufficient aeration in certain areas and the existence of dead zones, thus affecting the treatment effect of underwater sediment sludge. Summary of the Invention

[0004] To address the problems existing in the biodegradation method for reducing river sludge in the current technology, this utility model provides a mobile online treatment device for reducing river sludge. This device solves the problems of fixed underwater aeration devices in existing sludge treatment equipment, which are not easy to move and are prone to insufficient aeration in certain areas and dead zones.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0006] Design a mobile online treatment device for reducing river sludge volume, including a floating raft, an aeration device, and a filter box. The floating raft includes two side steps and a float located below the steps. The middle of the steps is an open structure, and a support frame is provided in the open part of the steps. The middle of the support frame is a lifting port. The filter box is located below the lifting port. Lifting rings are provided on both sides of the filter box. A winding device is provided on the support frame at the corresponding position above the lifting rings. A steel wire rope is wound on the winding device, and the lower end of the steel wire rope is connected to the lifting ring.

[0007] The aeration device includes a submersible pump installed inside the filter box, a microporous aeration head connected to the outlet pipe of the submersible pump, and an air inlet pipe connected to the microporous aeration head. The microporous aeration head is located outside one side wall of the filter box. The air inlet pipe is installed on the upper part of the raft, and the air inlet pipe is connected to the microporous aeration head by a flexible hose.

[0008] In the above technical solution, the raft can move on the water surface, driving the aeration device to the area where aeration is needed. The filter screen box is lowered into the water from the hoisting port through the winding device and moved down to the corresponding depth to aerate the sludge deposited at the bottom. By connecting the air inlet pipe and the microporous aeration head, external air is drawn into the cavity of the microporous aeration head through the air inlet pipe and injected into the bottom of the water body with the water flow, achieving full aeration. At the same time, biological agents can be added. Under the micro-nano aeration state, with the significant increase in dissolved oxygen, a large number of aerobic bacteria are rapidly activated, which can play a role in rapid decomposition. It can effectively remove soluble organic matter and some insoluble organic matter in the sludge, thereby achieving sludge reduction.

[0009] Preferably, guide brackets are provided on both sides below the support frame, and guide grooves are provided on the inner side of the two guide brackets along their length. Support plates are provided on both sides of the bottom plate of the filter box, and rollers are provided at both ends of the support plates. The rollers are rotatably installed in the corresponding guide grooves; the lifting rings are installed on the support plates. By setting the guide brackets, the filter box can be guided and limited during its up and down movement, preventing the filter box from shifting during the up and down movement; it can also prevent the filter box from shaking due to the impact of water flow during aeration, so as to ensure the stable operation of the aeration device.

[0010] Preferably, the winding device includes a fixed plate mounted on the support frame, a winch mounted on the fixed plate, and a wire rope wound around the winch. By providing the winding device, the winding and unwinding of the wire rope can be controlled, thereby driving the lower filter screen box to move up and down, facilitating the adjustment of the filter screen box's height in the water to adapt to different water depths; it can also lift the filter screen box to the hoisting port on the floating raft, facilitating equipment maintenance and repair of the aeration equipment, as well as cleaning and replacing the filter screen on the filter screen box.

[0011] Preferably, a rotating shaft is rotatably arranged between the two fixed plates, and a winding section is provided on both sides of the rotating shaft, with a limit plate on both sides of the winding section; a winding motor is provided at one end of the rotating shaft. By using the rotating shaft and the winding motor, the wire ropes on both sides can be wound synchronously, which can improve the efficiency of the up and down movement of the filter box and save time and labor.

[0012] Preferably, a water-filled chamber is provided between the two footplates at the rear of the raft. By filling or draining water into the water-filled chamber, the overall weight of the raft can be adjusted in real time, thereby changing the draft and thus regulating buoyancy and controlling the stability of the raft.

[0013] Preferably, the filter box includes a bottom plate, a top filter, and side filters.

[0014] Preferably, safety handrails are provided on both sides of the upper part of the pedal.

[0015] Preferably, anti-impact rubber blocks are arranged on the outer side of the two pontoons along their length.

[0016] Preferably, the pedal is an aluminum alloy pedal, and an anti-slip pattern is provided on the upper surface of the pedal.

[0017] The beneficial effects of this utility model are as follows:

[0018] This invention employs a floating raft structure, allowing free movement on the water surface to bring the aeration device to the corresponding water area. This enables aeration in different regions, positions, and directions, resulting in more thorough and uniform aeration and avoiding aeration dead zones. Through a winding device and guide bracket, the underwater depth of the submersible pump and microporous aeration heads can be controlled to adapt to water depths. It also ensures that the aeration device operates stably without being affected by water flow during aeration. This invention is easy to operate, has a wider range of applications, and plays an important role in the reduction of river sediment sludge, achieving efficient aeration, cost savings, improved biodegradation efficiency, and guaranteed sludge reduction effects. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of the mobile online treatment equipment for reducing river sludge volume according to this utility model;

[0020] Figure 2 This is a schematic diagram of the side structure of this utility model;

[0021] Figure 3 for Figure 1 Enlarged view of part A in the image;

[0022] Figure 4 This is a schematic diagram of another embodiment of the winding device in this utility model.

[0023] The following are labeled in the diagram: 1. Floating raft, 2. Filter box, 3. Step, 4. Float, 5. Support frame, 6. Lifting ring, 7. Wire rope, 8. Submersible pump, 9. Microporous aerator head, 10. Air inlet pipe, 11. Guide bracket, 12. Guide groove, 13. Support plate, 14. Roller, 15. Fixing plate, 16. Winch, 17. Shaft, 18. Limiting plate; 19. Winding motor, 20. Water tank, 21. Safety handrail, 22. Anti-collision rubber block. Detailed Implementation

[0024] The specific embodiments of this utility model will be described below with reference to the accompanying drawings and examples. However, the following examples are only used to illustrate the implementation of this utility model in detail and do not limit the scope of this utility model in any way.

[0025] Example 1: A mobile online treatment device for reducing river sludge volume, see [link to example]. Figures 1-3 The system includes a raft 1, an aeration device, and a filter box 2. The raft 1 includes two side steps 3 and floats 4 located below the steps 3. The middle of the steps 3 is an open structure, and a support frame 5 is provided at the open part of the steps 3. A water inlet 20 is provided between the two side steps 3 at the rear of the raft 1. Safety handrails 21 are provided on both sides of the upper part of the steps 3, and anti-impact rubber blocks 22 are provided along the length of the two floats 4 on their outer sides. The steps 3 can be made of aluminum alloy, and the upper surface of the steps 3 is provided with anti-slip patterns.

[0026] The support frame 5 has a lifting opening in the middle, and the filter box 2 is located below the lifting opening. The filter box 2 includes a bottom plate, a top filter screen, and side filter screens. Lifting rings 6 are respectively provided on both sides of the filter box 2. On the support frame 5, at the corresponding positions above the lifting rings 6, a winding device is respectively provided. A steel wire rope 7 is wound on the winding device, and the lower end of the steel wire rope 7 is connected to the lifting ring 6.

[0027] The winding device in this embodiment includes a fixed plate 15 mounted on the support frame 5, a winch 16 mounted on the fixed plate 15, and a steel wire rope 7 wound around the winch 16. The winch 16 can be a manual winch or an electric winch. The winch 16 controls the winding and unwinding of the steel wire rope 7, thereby driving the filter box 2 to move up and down, so that the aeration device can perform aeration at a suitable depth.

[0028] The aeration device includes a submersible pump 8 installed inside the filter box 2, a microporous aeration head 9 connected to the outlet pipe of the submersible pump 8, and an air inlet pipe 10 connected to the microporous aeration head 9. The microporous aeration head 9 is located on the outside of one side wall of the filter box 2. The air inlet pipe 10 is installed on the upper part of the floating raft 1, and the air inlet pipe 10 is connected to the microporous aeration head 9 by a flexible hose (the flexible hose is not shown in the figure). The flexible hose connection facilitates the vertical movement and position adjustment of the filter box 9. The water jet generated by the submersible pump, micro-nano aeration head, and air inlet pipe can agitate the sludge at the bottom of the water and simultaneously oxygenate the water. The generated microbubbles are 500 nanometers to 50 micrometers in size. The bubbles are fine and rise slowly, which can increase the specific surface area in contact with the sludge.

[0029] Guide brackets 11 are provided on both sides below the support frame 5. Guide grooves 12 are provided on the inner side of the two guide brackets 11 along their length. Support plates 13 are provided on both sides of the bottom plate of the filter box 2. Rollers 14 are provided at both ends of the support plates 13 and are rotatably installed in the corresponding guide grooves 12. The lifting rings 6 are installed on the support plates 13. When the winding device winds up and unwinds the wire rope to move the filter box 2 up and down, the rollers 14 on both sides of the filter box 2 move along the guide grooves 12, which play a role in limiting and guiding. The top of the guide brackets 11 can be detachably connected to the support frame 5. Different lengths of guide brackets 11 can be selected for water depths. After the operation is completed, the filter box 2 and the guide brackets 11 can be directly disassembled.

[0030] Example 2: A mobile online treatment device for reducing river sludge volume, which differs from Example 1 in that, see [link to example 1]. Figure 4 A rotating shaft 17 is rotatably mounted between two fixed plates 15. A winding section is located on each side of the rotating shaft 17, and a limit plate 18 is located on each side of the winding section. A winding motor 19 is located at one end of the rotating shaft 17. Through the rotating shaft 17 and the winding motor 19, the steel wire ropes 7 on both sides can be wound synchronously, improving the efficiency of the up-and-down movement of the filter box 2 and saving time and effort.

[0031] Furthermore, a winding section and a limiting plate 18 are also provided in the middle of the rotating shaft 17. A steel wire rope 7 is also wound on the winding section in the middle. At the same time, a lifting ring is also provided on the top of the filter box 2, which is connected to the hook at the lower end of the steel wire rope 7 in the middle, so as to realize the auxiliary hoisting of the filter box 2 and make the filter box 2 more stable during the up and down movement.

[0032] In the above embodiments, a drive device such as a propeller can be installed on the raft 1 to facilitate control of the raft 1's movement on the water surface. The raft 1 can also be equipped with a chemical dosing device for adding chemicals, enzymes, and bacteria required for biodegradation into the water. With sufficient aeration, the biodegradation agents can fully mix and contact with the sludge at the bottom of the water, quickly activating the aerobic bacteria residing in the sedimented sludge, thereby effectively removing soluble organic matter and some insoluble organic matter from the sludge, achieving sludge reduction.

[0033] A control cabinet can also be installed on the floating raft 1. The control cabinet contains a power supply and a controller to control devices such as aeration devices, winches, and winding motors. The specific equipment components, installation methods, and control methods can be implemented using existing technologies.

[0034] Unless otherwise specified, the equipment components involved in the above embodiments are all conventional equipment components.

[0035] The specific working principle of this mobile online river sludge reduction treatment equipment is as follows: The floating raft moves to the corresponding position on the water surface, the winding device lowers the steel wire rope, causing the filter box to descend to the corresponding underwater height, and the aeration device aerates the underwater sludge. The direction of the microporous aeration heads can be adjusted by controlling the rotation of the floating raft on the water surface, allowing for aeration in different directions within the area, resulting in more thorough aeration. During the aeration process, biological agents can be added to ensure thorough mixing and reaction between the underwater sludge and the biological agents, thereby achieving sludge reduction treatment. After the sludge treatment in one area is completed, the floating raft moves to the next area to continue the operation. After the sludge reduction treatment process is completed, or when maintenance of the aeration device is required, or when cleaning or replacement of the filter screen in the filter box is needed, the winding device retracts the steel wire rope, moving the filter box upwards back to the lifting position of the floating raft for maintenance work.

[0036] This invention not only solves the problems of fixed aeration device positions and inconvenience in moving existing river sludge reduction treatment equipment, which easily leads to uneven aeration and aeration dead zones, but also solves the problems of rapid on-site maintenance and cleaning of sludge reduction treatment equipment, as well as the problem of rapid replacement of aeration heads and submersible pumps. With this equipment, the diving depth of the aeration device can be adjusted according to the underwater depth to adapt to the reduction treatment of underwater sedimented sludge in water bodies of different depths.

[0037] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings and examples. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, changes or modifications can be made without departing from the spirit of the present invention.

Claims

1. A mobile online treatment device for reducing river sludge volume, characterized in that, The system includes a floating raft, an aeration device, and a filter box. The floating raft includes two side steps and a float located below the steps. The middle of the steps is an open structure with a support frame at the open part. The middle of the support frame is a lifting port. The filter box is located below the lifting port. Lifting rings are located on both sides of the filter box. A winding device is located on the support frame at a corresponding position above the lifting rings. A steel wire rope is wound on the winding device, and the lower end of the steel wire rope is connected to the lifting ring. The aeration device includes a submersible pump installed inside the filter box, a microporous aeration head connected to the outlet pipe of the submersible pump, and an air inlet pipe connected to the microporous aeration head. The microporous aeration head is located outside one side wall of the filter box. The air inlet pipe is installed on the upper part of the raft, and the air inlet pipe is connected to the microporous aeration head by a flexible hose.

2. The mobile online treatment equipment for reducing river sludge volume according to claim 1, characterized in that, Guide brackets are provided on both sides below the support frame. Guide grooves are provided on the inner side of the two guide brackets along their length. Support plates are provided on both sides of the bottom plate of the filter box. Rollers are provided at both ends of the support plates. The rollers are rotatably installed in the corresponding guide grooves. The lifting ring is installed on the support plate.

3. The mobile online river sludge reduction treatment equipment according to claim 1, characterized in that, The winding device includes a fixed plate mounted on a support frame, a winch mounted on the fixed plate, and a wire rope wound around the winch.

4. The mobile online treatment equipment for reducing river sludge volume according to claim 3, characterized in that, A rotating shaft is rotatably arranged between two fixed plates, and a winding section is arranged on both sides of the rotating shaft. A limit plate is arranged on both sides of the winding section; a winding motor is provided at one end of the rotating shaft.

5. The mobile online treatment equipment for reducing river sludge volume according to claim 3, characterized in that, A water tank is installed between the two footboards at the rear of the raft.

6. The mobile online treatment equipment for reducing river sludge volume according to claim 1, characterized in that, The filter box includes a bottom plate, a top filter, and side filters.

7. The mobile online treatment equipment for reducing river sludge volume according to claim 1, characterized in that, Safety handrails are installed on both sides of the upper part of the pedal.

8. The mobile online treatment equipment for reducing river sludge volume according to claim 1, characterized in that, Anti-impact rubber blocks are installed on the outer side of the two pontoons along their length.

9. The mobile online treatment equipment for reducing river sludge volume according to claim 1, characterized in that, The pedal is made of aluminum alloy and has an anti-slip pattern on the upper surface.

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