Underwater deposited sludge reduction treatment equipment

Abstract

The utility model discloses underwater deposited sludge reduction treatment equipment which comprises an aeration device and a supporting device, the aeration device comprises a submersible pump, a micropore aeration head connected with a water outlet pipe of the submersible pump and an air inlet pipe communicated with the micropore aeration head, and the upper end of the air inlet pipe is located above the water surface; the supporting device comprises a bottom plate and a supporting frame located on the upper portion of the bottom plate, and an inner tetrahedral cone composed of four slopes is arranged in the middle of the supporting frame. The lower part of the submersible pump is provided with a movable support, the movable support comprises a mounting plate, and the lower part of the mounting plate is provided with an outer four-side cone consisting of four inclined planes; the outer tetrahedral cone of the movable support is installed in the inner tetrahedral cone of the supporting device in a matched mode. According to the utility model, the modes of mobile aeration and medicament feeding are adopted, so that bio-enzyme can be in direct contact with sludge deposited at the bottom of an activated riverbed, the effect of rapid decomposition can be achieved along with the great increase of dissolved oxygen in an aeration state, and the efficiency of sludge reduction treatment is improved.

Description

Technical Field

[0001] This utility model relates to the field of underwater sediment sludge treatment technology, specifically to an underwater sediment sludge reduction treatment device. Background Technology

[0002] Submerged sludge refers to sediment rich in organic matter and minerals, formed through physicochemical and biochemical processes in still or slow-moving water environments. Excessive sludge deposition can severely impact water quality and the ecological environment, necessitating regular reduction treatment. Commonly used methods for treating submerged sludge include biodegradation, physical treatment, and chemical treatment.

[0003] When using biodegradation to reduce the volume of underwater sediment sludge, aeration can be used to impact the underwater sediment sludge. Combined with the addition of biological agents (biological enzymes or biological bacteria), the aerobic bacteria residing in the sediment sludge can be activated, thereby degrading the organic matter in the sludge and achieving sludge reduction and water purification.

[0004] Existing underwater sediment sludge reduction treatment equipment generally uses fixed aeration devices and fixed chemical dosing points. Once installed, the aeration devices are not easy to move, and to achieve comprehensive aeration of different underwater areas, many aeration devices need to be set up, which is costly and inconvenient to control and maintain. Chemical dosing is generally done by directly adding it into the water body through dosing pipes. Biological agents are not easy to mix fully with the bottom sludge. To achieve sufficient biodegradation of underwater sediment sludge, it is necessary to increase the number of biological agent dosing points and the amount added, which will further increase the treatment cost of underwater sediment sludge. Summary of the Invention

[0005] To address the problems existing in the biodegradation method for treating underwater sedimentary sludge, this invention provides an underwater sedimentary sludge reduction treatment device. The aeration device is easy to move and maintain, and can provide sufficient aeration at different underwater locations. It can also be used in conjunction with a chemical dosing device to achieve coordinated operation of aeration and chemical dosing, so that the biological agents, oxygen and sludge washed up from the bottom of the water can be fully mixed, which can effectively improve the efficiency of biodegradation and save costs.

[0006] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0007] Design an underwater sediment sludge reduction treatment device, including an aeration device and a support device. The aeration device includes a submersible pump, 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 upper end of the air inlet pipe is located above the water surface.

[0008] The support device includes a base plate and a support frame located on the upper part of the base plate. An inner tetrahedron composed of four inclined surfaces is provided in the middle of the support frame. A movable support is installed on the lower part of the submersible pump. The movable support includes a mounting plate. An outer tetrahedron composed of four inclined surfaces is provided on the lower part of the mounting plate. The outer tetrahedron of the movable support is matched and installed in the inner tetrahedron of the support device. The mounting plate and the support frame are detachably installed together.

[0009] In the above technical solution, underwater aeration can be achieved through the combination of a submersible pump, microporous aeration heads, and an air inlet pipe. The submersible pump is detachably mounted on the support device, facilitating stable fixation. This allows for convenient transport of the aeration device and support device together to the corresponding water area for sludge reduction treatment via a floating raft or boat. Alternatively, the support device and aeration device can be lowered to a suitable depth at the bottom of the water for aeration. During aeration, the support device stabilizes and fixes the submersible pump, ensuring a more stable aeration process. The installation structure, with its inner and outer four-sided cones, securely mounts the submersible pump to the support frame and also acts as a counterweight, preventing swaying or displacement during aeration. The detachable installation structure of the aeration device and support device facilitates on-site installation and allows the aeration device to be easily lifted to the water surface for inspection, maintenance, or replacement.

[0010] Preferably, a pressure plate is fitted on the upper part of the submersible pump, and a fixing screw is installed on the pressure plate. The lower end of the fixing screw is threaded to the mounting plate, which facilitates disassembly.

[0011] Preferably, a bracket is provided on one side of the support frame, and a support plate with an arc-shaped groove is provided on the bracket. The lower part of the microporous aeration head is installed in the groove of the support plate, which plays a role in stabilizing the installation of the microporous aeration head.

[0012] Preferably, limiting grooves are formed on the four faces of the inner tetrapod of the support device, and corresponding protrusions matching the limiting grooves are provided on the four faces of the outer tetrapod of the movable support. The cooperation of the limiting grooves and protrusions makes the installation structure of the submersible pump on the support device more stable.

[0013] Preferably, the aeration device and support device are installed as a whole and mounted on a floating hull. They are lowered underwater for aeration by hoisting, with the air inlet pipe installed on the upper part of the hull. As the hull moves on the water surface, it can carry the aeration device to designated areas and locations for aeration, achieving comprehensive aeration and avoiding dead zones. A dosing device, including a chemical tank with a dosing pipe at the bottom connected to the air inlet pipe, is also installed on the hull. The chemical tank contains biological enzymes or bacteria. The dosing device works in conjunction with the aeration device to achieve mobile aeration and follow-up dosing of chemicals. By connecting the dosing pipe and the air inlet pipe, the biological agents are 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. This method of application allows the biological agents to mix and come into full contact with the sludge washed up from the bottom of the water body. Under microporous aeration, as dissolved oxygen increases significantly, a large number of aerobic bacteria are rapidly activated, which can play a role in rapid decomposition and remove soluble organic matter in the sludge, thus achieving sludge reduction.

[0014] Preferably, a dosing valve is installed on the dosing pipe.

[0015] Preferably, a grid-like protective frame is provided on the outside of the medicine container.

[0016] Preferably, the dosing pipe and the air inlet pipe, and the air inlet pipe and the microporous aeration head are all connected by steel wire hoses. Steel wire hoses of appropriate length can be selected for connection as needed, which makes it convenient for the aeration device to be moved down to different water depths for aeration.

[0017] Preferably, an intake valve, an air filter, and a vacuum pressure gauge are installed at the top of the intake pipe.

[0018] Preferably, ear plates are provided on the upper part of the support frame and / or the upper part of the mounting plate, and the ear plates are provided with lifting holes.

[0019] Preferably, both the air intake valve and the dosing valve are electric ball valves.

[0020] The beneficial effects of this utility model are as follows:

[0021] This invention employs a detachable design to integrate the aeration device and support structure, facilitating hoisting and underwater movement. This enables mobile underwater aeration, avoiding issues such as uneven aeration and dead zones. Once integrated, the aeration device and support structure can be moved to different locations within the water body via floating boats or rafts, facilitating on-site installation, maintenance, and equipment replacement, thus improving work efficiency. It can also be used in conjunction with a chemical dosing system, enabling simultaneous addition of biological agents and aeration. With sufficient aeration, the bacteria or enzymes thoroughly mix and contact with the sludge washed up from the bottom of the water, rapidly activating the aerobic bacteria residing in the sludge and removing soluble organic matter. This achieves sludge reduction and water purification without requiring large-scale civil engineering construction. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the underwater sediment sludge reduction treatment equipment of this utility model;

[0023] Figure 2 for Figure 1 Side view of underwater sediment sludge reduction treatment equipment;

[0024] Figure 3 This is a schematic diagram of another embodiment of the underwater sediment sludge reduction treatment equipment of this utility model.

[0025] The following are labeled in the diagram: 1 Submersible pump, 2 Microporous aerator head, 3 Air inlet pipe, 4 Base plate, 5 Support frame, 6 Inner four-sided cone; 7 Mounting plate, 8 Limiting groove; 9 Pressure plate, 10 Fixing screw, 11 Bracket, 12 Support plate, 13 Ear plate, 14 Agent tank, 15 Protective frame, 16 Steel wire hose. Detailed Implementation

[0026] 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.

[0027] Example 1: An underwater sediment sludge reduction treatment device, see [link to example]. Figure 1 , Figure 2 It includes an aeration device and a support device. The aeration device includes a submersible pump 1, a microporous aeration head 2 connected to the outlet pipe of the submersible pump 1, and an air inlet pipe 3 connected to the microporous aeration head 2. The upper end of the air inlet pipe 3 is located above the water surface.

[0028] The support device includes a base plate 4 and a support frame 5 located on the upper part of the base plate 4. An inner tetrahedron 6 composed of four inclined surfaces is provided in the middle of the support frame 5. A movable support is installed on the lower part of the submersible pump 1. The movable support includes a mounting plate 7. An outer tetrahedron composed of four inclined surfaces is provided on the lower part of the mounting plate 7. The outer tetrahedron of the movable support is matched and installed in the inner tetrahedron 6 on the support device. The mounting plate 7 and the support frame 5 are detachably installed together.

[0029] A pressure plate 9 is fitted on the upper part of the submersible pump 1, and a fixing screw 10 is threaded through the pressure plate 9. The lower end of the fixing screw 10 is threaded to the mounting plate 7. A bracket 11 is provided on one side of the support frame 5, and a support plate 12 with an arc-shaped groove is provided on the bracket 11. The lower part of the microporous aeration head 2 is installed in the groove of the support plate 12.

[0030] Furthermore, limiting grooves 8 are respectively opened on the four faces of the inner tetrapod 6 on the support device, and protrusions matching the limiting grooves 8 are respectively set at corresponding positions on the four faces of the outer tetrapod of the movable support.

[0031] Ear plates 13 are provided on the upper part of the support frame 5 and / or the upper part of the mounting plate 7, and the ear plates 13 are provided with lifting holes. After the aeration device and the support device are installed as a whole, they can be mounted on a floating pontoon. After being moved to the designated water area, the support device and the aeration device are lowered to a suitable depth underwater for aeration by hoisting. The air inlet pipe 3 is installed on the upper part of the floating pontoon, and an air inlet valve, an air filter and a vacuum pressure gauge are provided at the top of the air inlet pipe 3. Hoisting can be carried out by connecting steel wire ropes and hooks to the lifting holes, and using equipment such as winches or electric hoists as the driving method, which facilitates control over the depth of descent of the aeration device.

[0032] Example 2: An underwater sediment sludge reduction treatment device, based on Example 1, see [link to example 1]. Figure 3 The floating platform can also be equipped with a dosing device, including a chemical tank 14. A dosing pipe is located at the bottom of the chemical tank 14 and is connected to the air inlet pipe 3. A dosing valve is installed on the dosing pipe. A mesh protective frame 15 is installed outside the chemical tank 14. The dosing pipe and the air inlet pipe 3, and the air inlet pipe 3 and the microporous aerator head 2 are connected by flexible steel wire hoses 16. Both the air inlet valve and the dosing valve can be electric ball valves. A three-way connector is installed on the air inlet pipe 2, one end of which connects to the air filter at the upper end of the air inlet pipe, one end of which connects to the flexible steel wire hose 16 of the dosing pipe, and the other end of which connects to the flexible steel wire hose 16 connecting to the microporous aerator head 2.

[0033] The microporous aerator head 2, connected to the outlet of the submersible pump 1, forms a vacuum negative pressure under the action of the large flow of water from the submersible pump 1. External air is drawn into the cavity of the microporous aerator head 2 through the air inlet pipe 3 and injected into the bottom of the river water body with the water flow, thus achieving aeration. When the dosing pipe is opened, the biological enzymes or bacteria stored in the chemical tank 14 can be drawn into the cavity of the microporous aerator head 2 and injected into the bottom of the river water body with the water flow, thus achieving biological agent dosing.

[0034] The water jet generated by the microporous aerator 2 can agitate the sludge at the bottom of the water while simultaneously oxygenating the water. The microbubbles, ranging in size from 500 nanometers to 50 micrometers, are fine, dense, and rise slowly, increasing the specific surface area for contact with the sludge. The microporous aerator 2 can also draw biological agents from the agent tank 14 into the cavity of the aerator and inject them into the bottom of the water body with the water flow. With sufficient aeration, the bacteria or enzymes mix thoroughly with the sludge washed up from the bottom, quickly activating the aerobic bacteria residing in the deposited sludge, thereby effectively removing soluble organic matter from the wastewater and reducing sludge volume.

[0035] Unless otherwise specified, the equipment components involved in the above embodiments are all conventional equipment components.

[0036] The specific working method of this underwater sediment sludge reduction treatment equipment is as follows: After the aeration device and support device are installed together, they are carried by a floating vessel to the water area where underwater sediment sludge treatment is needed. The aeration device and support device are then lowered to a suitable depth on the bottom of the water using hoisting equipment. Aeration is then carried out through the coordinated operation of a submersible pump, microporous aeration heads, and air inlet pipes. When biological agents need to be added, the air inlet valve is closed and the dosing valve is opened. The biological agents in the agent tank are sucked into the cavity of the aeration head and injected into the bottom of the water body with the water flow. Under sufficient aeration conditions, the biological bacteria or enzymes fully mix and contact with the sludge washed up from the bottom, which can quickly activate the aerobic bacteria residing in the sediment sludge, thereby removing soluble organic matter from the wastewater. After the agent addition is completed, the dosing valve is closed and the air inlet valve is opened to continue aeration of the underwater sludge. The order of aeration and agent addition can be selected according to actual needs. After the dosing and aeration processes at one location are completed, the floating vessel moves to the next location to continue operations. During the work process, the hoisting equipment can retract the aeration device and support device as a whole at any time for equipment maintenance and replacement.

[0037] The purpose of this aeration and chemical dosing method is twofold: firstly, the biological enzymes can directly contact and activate the sludge deposited at the bottom of the riverbed; secondly, the biological enzymes themselves have the ability to decompose organic sludge, and their direct contact with the sludge deposited at the bottom of the riverbed can achieve rapid decomposition, thereby improving the efficiency of sludge reduction treatment.

[0038] 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. An underwater sediment sludge reduction treatment device, characterized in that, It includes an aeration device and a support device. The aeration device includes a submersible pump, 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 upper end of the air inlet pipe is located above the water surface. The support device includes a base plate and a support frame located on the upper part of the base plate. An inner tetrahedron composed of four inclined surfaces is provided in the middle of the support frame. A movable support is installed on the lower part of the submersible pump. The movable support includes a mounting plate. An outer tetrahedron composed of four inclined surfaces is provided on the lower part of the mounting plate. The outer tetrahedron of the movable support is matched and installed in the inner tetrahedron of the support device. The mounting plate and the support frame are detachably installed together.

2. The underwater sediment sludge reduction treatment equipment according to claim 1, characterized in that, A pressure plate is installed on the upper part of the submersible pump, and a fixing screw is installed on the pressure plate. The lower end of the fixing screw is threaded to the mounting plate.

3. The underwater sediment sludge reduction treatment equipment according to claim 1, characterized in that, A bracket is provided on one side of the support frame, and a support plate with an arc-shaped groove is provided on the bracket. The lower part of the microporous aeration head is installed in the groove of the support plate.

4. The underwater sediment sludge reduction treatment equipment according to claim 1, characterized in that, On the four faces of the inner tetrahedron of the support device, there are limiting grooves respectively, and on the corresponding positions of the four faces of the outer tetrahedron of the movable support, there are protrusions that match the limiting grooves respectively.

5. The underwater sediment sludge reduction treatment equipment according to claim 1, characterized in that, The aeration device and support device are installed as a whole and mounted on a floating hull. They are then lowered into the water for aeration by hoisting. The air intake pipe is installed on the upper part of the floating hull.

6. The underwater sediment sludge reduction treatment equipment according to claim 5, characterized in that, The floating vessel is also equipped with a dosing device, including a medicine tank with a dosing pipe at the bottom that is connected to the air intake pipe.

7. The underwater sediment sludge reduction treatment equipment according to claim 5, characterized in that, A dosing valve is installed on the dosing pipe; a grid-like protective frame is installed on the outside of the chemical tank.

8. The underwater sediment sludge reduction treatment equipment according to claim 5, characterized in that, The dosing tube and the air inlet tube, as well as the air inlet tube and the microporous aeration head, are all connected by flexible steel wire hoses.

9. The underwater sediment sludge reduction treatment equipment according to claim 1, characterized in that, An intake valve, an air filter, and a vacuum pressure gauge are installed at the top of the intake pipe.

10. The underwater sediment sludge reduction treatment equipment according to claim 1, characterized in that, Ear plates are provided on the upper part of the support frame and / or the upper part of the mounting plate, and the ear plates are provided with lifting holes.

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