Settling type underwater sludge online treatment aeration equipment

Abstract

The utility model discloses sedimentation type underwater sludge online treatment aeration equipment which comprises an aeration device and a protection 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 protection device comprises a supporting bottom plate, the lower portion of the submersible pump is installed on the supporting bottom plate, a protection cover is installed outside the submersible pump and comprises frames and a filter screen arranged between the frames, and the outer end of the micropore aeration head is located outside the protection cover. The utility model solves the problem that the existing underwater aeration device is easy to be adhered and blocked by sludge and underwater sundries, can effectively improve the aeration efficiency during underwater sludge treatment, prolongs the service life of equipment, and can also realize the quick maintenance and cleaning of the aeration device on site and the quick replacement of the microporous aeration head and the submersible pump. Therefore, the working efficiency of underwater sludge treatment is further improved.

Description

Technical Field

[0001] This utility model relates to the field of underwater sediment sludge treatment technology, specifically to a sedimentation-type online treatment aeration device for underwater sludge. Background Technology

[0002] Underwater sediment refers to deposits rich in organic matter and minerals formed through physicochemical and biochemical processes in still or slow-moving water environments. Excessive sediment deposition can severely impact water quality and the ecological environment, necessitating regular treatment. Currently, biodegradation is a commonly used method for treating underwater sediment, utilizing microorganisms to degrade the organic matter in the sediment.

[0003] When using biodegradation to treat underwater sediment, it is necessary to add biological agents (enzymes or bacteria) to the bottom of the water. Simultaneously, the sediment needs to be aerated to increase oxygen supply, thereby promoting microbial activity and degradation. River and lake sediment often contains debris, which can easily adhere to the aeration device and clog the aeration heads during aeration. Existing underwater aeration devices are also prone to clogging by debris in the sediment, leading to easy damage and a short lifespan, thus affecting the treatment efficiency and effectiveness of underwater sediment. Summary of the Invention

[0004] This invention provides a sedimentation-type online aeration device for treating underwater sludge, aiming to solve the problem that existing underwater aeration devices are easily adhered to by sludge and blocked by debris, thus affecting the treatment efficiency and effect of underwater sedimented sludge.

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

[0006] Design a sedimentation-type underwater sludge online treatment aeration device, characterized in that it includes an aeration device and a protective 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.

[0007] The protective device includes a supporting base plate, with the lower part of the submersible pump mounted on the supporting base plate. A protective cover is installed outside the submersible pump, and the protective cover includes a frame and a filter screen disposed between the frame. The protective cover is an integral structure, and the protective cover is detachably installed together with the supporting base plate. A "∩"-shaped mounting port is opened at the lower part of one side of the filter screen, and the two sides of the mounting port are fastened to the two sides of the microporous aerator head. The outer end of the microporous aerator head is located outside the protective cover. A lifting ring is provided at the top edge of the frame.

[0008] In the above technical solution, underwater aeration can be achieved through the cooperation of a submersible pump, a microporous aerator head, and an air inlet pipe. When the aeration device is working, the submersible pump generates a high-flow-rate jet of water, creating a vacuum negative pressure within the cavity of the microporous aerator head. This draws external air into the cavity of the aerator head through the air inlet pipe. Under the action of the high-speed jet of water, the air is ejected in the direction of the water flow impact, forming microbubbles with a diameter of 500 nanometers to 50 micrometers in the water. These microbubbles rise slowly, increasing the specific surface area in contact with the silt in the water and improving the efficiency of biodegradation. By mounting the submersible pump on a supporting base plate, it is possible to prevent bottom silt from entering the submersible pump from below during underwater aeration, thus preventing silt from clogging the aerator head. Furthermore, by installing a protective cover, it is possible to prevent underwater debris from being sucked into the submersible pump, causing equipment blockage and damage.

[0009] During operation, after the aeration and protective devices are installed, they can be moved to the appropriate water area by a floating vessel. The entire aeration and protective device is then lowered to a suitable depth on the bottom of the water using hoisting equipment for underwater aeration. At the same time, biological bacteria / enzymes can be added to ensure that the biological agents are fully mixed and in contact with the silt washed up from the bottom of the water. During aeration, as the dissolved oxygen level increases significantly, a large number of aerobic bacteria are rapidly activated, which can play a role in rapid decomposition and remove soluble organic matter from the silt, thus achieving underwater silt reduction treatment.

[0010] Preferably, the supporting base plate is equipped with two sets of submersible pumps and microporous aerators installed in opposite directions. The two sets of microporous aerators face opposite directions. The protective cover covers the two submersible pumps, and the two microporous aerators are located on the outer sides of the protective cover. The two sets of aeration devices can simultaneously aerate in opposite directions, improving aeration efficiency. The impact water flow generated by the two sets of aeration devices during operation is sprayed in opposite directions symmetrically, which can counteract the reverse thrust of the unidirectional impact load generated by the aeration devices when operating underwater in rivers or lakes.

[0011] Preferably, an "L"-shaped connector is provided on the supporting base plate. The lower horizontal plate of the connector is installed together with the supporting base plate, and the side vertical plate of the connector is installed together with the side wall of the protective cover by plug-in fixing or thread fixing. By providing the connector, the installation and disassembly of the protective cover and the supporting base plate are facilitated.

[0012] Preferably, a support block is provided on the support base plate at the position below the microporous aeration head, and an arc-shaped groove is provided on the support block, with the lower part of the microporous aeration head installed in the groove of the support block.

[0013] Preferably, the filter screen is a stainless steel woven filter screen.

[0014] Preferably, an intake valve, an air filter, and a vacuum pressure gauge are installed at the top of the intake pipe.

[0015] Preferably, a support leg is provided at the lower edge of the support base plate.

[0016] The beneficial effects of this utility model are as follows:

[0017] This invention utilizes a submersible pump, microporous aerator head, and air inlet pipe to achieve underwater microporous aeration. The slow rise of microbubbles increases the specific surface area in contact with silt in the water, thereby improving the efficiency of biodegradation. By incorporating a supporting base plate and protective cover, silt and debris from the bottom of the water can be prevented from being sucked into the submersible pump, avoiding blockages and damage to the pump and aerator head. This reduces the frequency of equipment maintenance and replacement, extends equipment lifespan, and ultimately saves costs.

[0018] This invention is easy to install and operate, enabling on-site installation, maintenance, and replacement of underwater aeration equipment, thereby improving the efficiency of online underwater sludge treatment. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of the sedimentation-type underwater sludge online treatment aeration device of this utility model;

[0020] Figure 2 for Figure 1 Enlarged view of part A in the image;

[0021] Figure 3 for Figure 1 Side view of a sedimentation-type underwater sludge online treatment aeration device;

[0022] Figure 4 This is a schematic diagram of another embodiment of the sedimentation-type underwater sludge online treatment aeration device of this utility model.

[0023] The following are the labels in the diagram: 1 Submersible pump, 2 Microporous aerator head, 3 Air inlet pipe, 4 Support base plate, 5 Protective cover, 6 Frame, 7 Filter screen, 8 Mounting port, 9 Lifting ring, 10 Connector, 11 Support block, 12 Leg. 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 settling-type underwater sludge online treatment aeration device, see [link to example]. Figures 1-3 It includes an aeration device and a protective 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. An air inlet valve, an air filter and a vacuum pressure gauge are installed at the top of the air inlet pipe 3.

[0026] The protective device includes a supporting base plate 4, on which the submersible pump 1 is mounted. A protective cover 5 is installed outside the submersible pump 1. The protective cover 5 includes a frame 6 and a filter screen 7 disposed between the frame 6. The filter screen 7 is a stainless steel woven filter screen. The protective cover 5 is an integral structure and is detachably installed with the supporting base plate 4. A "∩"-shaped mounting port 8 is opened at the bottom of one side of the filter screen 7. The mounting port 8 is fastened to both sides of the microporous aeration head 2. The outer end of the microporous aeration head 2 is located outside the protective cover 5. A lifting ring 9 is provided at the top edge of the frame 7.

[0027] An "L"-shaped connector 10 is provided on the support base plate 4. The lower horizontal plate of the connector 10 is installed together with the support base plate 4, and the side vertical plate of the connector 10 is installed together with the side wall of the protective cover 5 by means of plug-in fixing or thread fixing.

[0028] A support block 11 is provided on the support base plate 4 at the lower part of the microporous aeration head 2. An arc-shaped groove is formed on the support block 11, and the lower part of the microporous aeration head 2 is installed in the groove of the support block 11. A support leg 12 is provided on the lower edge of the support base plate 4.

[0029] Example 2: A settling-type underwater sludge online treatment aeration device, see [link to example]. Figure 4 Two sets of submersible pumps 1 and microporous aeration heads 2 are installed symmetrically in opposite directions on the supporting base plate 4. The two sets of microporous aeration heads 2 are set in opposite directions. The protective cover 5 covers the two submersible pumps 1 inside, and the two microporous aeration heads 3 are located on the outside of the two sides of the protective cover.

[0030] In the above embodiments, the submersible pump operates by generating a water jet that creates a vacuum negative pressure, allowing external air to enter the cavity of the microporous aerator head through the air inlet pipe. This air is then ejected with the water jet, producing a large number of microbubbles. The water flow agitates the silt at the bottom of the water, and the microbubbles oxygenate the water. These microbubbles, ranging in size from 500 nanometers to 50 micrometers, are fine, dense, and rise slowly, increasing the specific surface area in contact with the silt. Simultaneously, the addition of biological agents can be used to improve the biodegradation efficiency of the silt at the bottom of the water.

[0031] Unless otherwise specified, the equipment components involved in the above embodiments are all conventional equipment components.

[0032] The aeration device of this invention can be mounted on a floating vessel for mobile aeration in different waters. The aeration device and protective device can be easily moved up and down in the water using hoisting equipment. The diving depth of the aerator can be adjusted according to the underwater depth to adapt to underwater sediment treatment at different depths. This invention solves the problem of existing underwater aeration devices being easily adhered to and clogged by silt and underwater debris, effectively improving the aeration efficiency and extending the service life of the equipment during underwater silt treatment. It also enables rapid on-site maintenance and cleaning of the aeration device, as well as quick replacement of microporous aeration heads and submersible pumps, thereby further improving the efficiency of underwater silt treatment.

[0033] 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 settling-type underwater sludge online treatment aeration device, characterized in that, It includes an aeration device and a protective 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 protective device includes a supporting base plate, with the lower part of the submersible pump mounted on the supporting base plate. A protective cover is installed outside the submersible pump, and the protective cover includes a frame and a filter screen disposed between the frame. The protective cover is an integral structure, and the protective cover and the supporting base plate are detachably installed together. A "∩"-shaped mounting port is opened at the lower part of one side of the filter screen, and the two sides of the mounting port are fastened to the two sides of the microporous aerator head. The outer end of the microporous aerator head is located outside the protective cover. A lifting ring is provided at the top edge of the frame.

2. The settling-type underwater sludge online treatment aeration equipment according to claim 1, characterized in that, Two sets of submersible pumps and microporous aerators are installed in opposite directions on the supporting base plate. The two sets of microporous aerators are arranged in opposite directions. The protective cover covers the two submersible pumps, and the two microporous aerators are located on the outside of the protective cover on both sides.

3. The settling-type underwater sludge online treatment aeration equipment according to claim 1 or 2, characterized in that, An "L"-shaped connector is provided on the support base plate. The lower horizontal plate of the connector is installed together with the support base plate, and the side vertical plate of the connector is installed together with the side wall of the protective cover by plug-in fixing or thread fixing.

4. The settling-type underwater sludge online treatment aeration equipment according to claim 1 or 2, characterized in that, A support block is provided on the support base plate at the lower part of the microporous aeration head. An arc-shaped groove is provided on the support block, and the lower part of the microporous aeration head is installed in the groove of the support block.

5. The settling-type underwater sludge online treatment aeration equipment according to claim 1 or 2, characterized in that, The filter screen is a stainless steel woven filter screen.

6. The settling-type underwater sludge online treatment aeration equipment according to claim 1 or 2, characterized in that, An intake valve, an air filter, and a vacuum pressure gauge are installed at the top of the intake pipe.

7. The settling-type underwater sludge online treatment aeration equipment according to claim 1 or 2, characterized in that, Support legs are provided at the lower edge of the supporting base plate.

Images