An aeration device for treating lake sediment pollution

Abstract

The utility model discloses an aeration device for treating lake bottom mud pollution relates to aeration device technical field. This aeration device for treating lake bottom mud pollution, including bottom plate, the bottom plate lower end all fixedly connected with the floating block, and the bottom plate is fixedly connected with the fixed column fixed column inner wall and is equipped with the internal thread, and the fixed column inside is equipped with the retractable column, and the retractable column surface is equipped with the external thread, and the external thread is connected with the internal thread thread, and the retractable column upper end is fixedly connected with the rocker, and the retractable column lower end is fixedly connected with the cone, and the device provides stable buoyancy through the floating block of bottom plate lower end, ensures the whole floating in the lake, and the external thread of retractable column rotates in the fixed column internal thread by rotating rocker, realizes the lift adjustment to adapt to different water depth, and the lower end cone inserts the bottom mud and enhances the grip, effectively resists the water flow impact, solves the defect that the traditional device is not fixed and is not stable, and the displacement influences the aeration effect.

Description

Technical Field

[0001] This utility model relates to the field of aeration device technology, and in particular to an aeration device for treating lake bottom sediment pollution. Background Technology

[0002] Patent application number CN201720004334.5 discloses a solar-powered aeration and purification device for lakes. This solution utilizes a structure including a floating island, a solar aeration system, and a biochemical purification system. The solar aeration system comprises an aeration platform set on the floating island, a solar power generation device installed on the aeration platform, and a micro-rotating disc aeration device, among other components, to address the issue that the low transparency and high depth of polluted lake water limit the growth of aquatic plants and the effectiveness of pollution control. While bypass purification facilities are effective, they face problems such as high investment, limited land use, and disturbance to residents. However, this solution does not mention that existing lake sediment aeration devices mostly use fixed supports or single buoyancy structures, which are difficult to adapt to lake environments with different depths. Traditional devices lack flexible positioning mechanisms and are prone to displacement under the impact of water flow or waves, causing the aeration area to deviate from the polluted area and affecting the treatment effect. At the same time, the fixed depth design cannot adjust the aeration position according to the thickness of the sediment, making it difficult to achieve precise treatment for lakes of varying depths, increasing the difficulty of operation and equipment investment costs.

[0003] The aeration efficiency of traditional aeration devices is limited by the size and uniformity of bubble distribution. They mostly use ordinary aeration heads, which produce large bubbles with a small contact area with the water, resulting in low oxygen utilization. In addition, the air intake system lacks effective filtration, allowing impurities in the water to easily enter the pipes and cause blockages, requiring frequent maintenance. The power transmission structure is not stable enough, and the motor is prone to vibration during operation, which affects the airflow output and causes fluctuations in aeration effect, making it difficult to meet the high-efficiency requirements of sediment pollution treatment. Utility Model Content

[0004] The purpose of this invention is to at least solve one of the technical problems existing in the prior art, and to provide an aeration device for treating lake bottom sediment pollution, which can solve the above-mentioned problems.

[0005] To achieve the above objectives, the present invention provides the following technical solution: an aeration device for treating lake bottom sediment pollution, comprising a bottom plate, wherein floating blocks are fixedly connected to all four sides of the lower end of the bottom plate, and a fixed column is fixedly connected to the bottom plate.

[0006] The inner wall of the fixed column is provided with internal threads, and an extension column is provided inside the fixed column. The surface of the extension column is provided with external threads, and the external threads are threadedly connected to the internal threads.

[0007] Preferably, a rocker arm is fixedly connected to the upper end of the telescopic column, and a cone is fixedly connected to the lower end of the telescopic column.

[0008] Preferably, a chassis is fixedly connected to the upper center of the base plate, a motor is fixedly connected to one side of the chassis, a support plate is fixedly connected to the lower end of the motor, a rotating shaft is provided inside the chassis, and a rotating shaft is fixedly connected to the output end of the motor.

[0009] Preferably, the casing is equipped with a fan blade, and the other end of the rotating shaft is fixedly connected to the fan blade.

[0010] Preferably, a Z-shaped pipe is fixedly connected to the other side of the chassis, and a filter screen is provided inside the pipe. A filter screen is fixedly connected to the inner wall of the pipe input end.

[0011] Preferably, a microporous aeration plate is fixedly connected to the upper end of the other side of the pipe.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] (1) The aeration device for treating lake bottom sediment pollution provides stable buoyancy through the floating block at the bottom of the bottom plate, ensuring that the whole device floats on the lake surface. The rotating rocker causes the external thread of the telescopic column to rotate in the internal thread of the fixed column, realizing the lifting adjustment to adapt to different water depths. After the lower cone is inserted into the bottom sediment, it enhances the grip and effectively resists the impact of water flow, solving the defects of traditional devices that are not stable and whose displacement affects the aeration effect.

[0014] (2) The aeration device for treating lake bottom sediment pollution has a motor that is securely installed in the machine box through a support plate. After starting, the motor drives the rotating shaft to rotate the fan blades at high speed to generate a continuous airflow. The machine box protects the internal components from lake water erosion. The rotating shaft accurately transmits power to ensure that the fan blades work continuously and efficiently, providing a stable airflow source for the aeration process and solving the problems of insufficient power and interrupted airflow in traditional devices.

[0015] (3) The aeration device for treating lake bottom sediment pollution has airflow generated by the fan blades transported through Z-shaped pipes. The filter screen filters impurities to prevent clogging. The Z-shaped design makes the airflow more uniform. Finally, the air is dispersed into tiny bubbles through the microporous aeration plate, which greatly increases the contact area with the lake water, improves the oxygen dissolution efficiency, and accelerates the decomposition of bottom sediment pollutants. This solves the problems of large bubbles and low dissolution rate of traditional aeration devices. Attached Figure Description

[0016] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0017] Figure 1 This is an isometric view of an aeration device for treating lake sediment pollution according to the present invention.

[0018] Figure 2 This is a cross-sectional schematic diagram of an aeration device for treating lake bottom sediment pollution according to the present invention.

[0019] Figure 3 This is a top view schematic diagram of an aeration device for treating lake bottom sediment pollution according to the present invention;

[0020] Figure 4 This is an isometric view of an aeration device for treating lake bottom sediment pollution according to the present invention.

[0021] Reference numerals: 1. Base plate; 2. Rocker arm; 3. Fixed column; 4. Telescopic column; 5. Cone; 6. Motor; 7. Support plate; 8. Chassis; 9. Pipe; 10. Microporous aeration plate; 11. Floating block; 12. Rotating shaft; 13. Fan blade; 14. Internal thread; 15. External thread; 16. Filter screen. Detailed Implementation

[0022] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0023] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0024] In the description of this utility model, terms such as greater than, less than, and exceeding are understood to exclude the stated number, while terms such as above, below, and within are understood to include the stated number. The use of terms like "first" and "second" is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the quantity or sequence of the indicated technical features.

[0025] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0026] Please see Figure 1-4 This utility model provides a technical solution: an aeration device for treating lake bottom sediment pollution, including a bottom plate 1 with floating blocks 11 fixedly connected to the lower end of the four sides, a fixed column 3 fixedly connected to the bottom plate 1, the inner wall of the fixed column 3 is provided with internal thread 14, a telescopic column 4 is inside the fixed column 3, the surface of the telescopic column 4 is provided with external thread 15, and the external thread 15 is threadedly connected to the internal thread 14.

[0027] The floating block 11 provides buoyancy to the entire device so that it floats on the lake surface. By rotating the rocker arm 2, the external thread 15 of the telescopic column 4 is driven to rotate in the internal thread 14 of the fixed column 3, thereby realizing the lifting and lowering adjustment of the telescopic column 4.

[0028] A rocker arm 2 is fixedly connected to the upper end of the telescopic column 4, and a cone 5 is fixedly connected to the lower end of the telescopic column 4.

[0029] Among them, cone 5 is triangular in shape;

[0030] When the operator turns the rocker arm 2, the telescopic column 4 moves up and down using the threaded transmission principle. The cone 5 has a sharp bottom, which can be easily inserted into the lake bottom mud when the device is positioned, increasing the contact area and friction with the bottom mud, effectively resisting the influence of wind, waves and water flow, ensuring that the device remains stable during operation, and avoiding the aeration effect caused by shaking.

[0031] A chassis 8 is fixedly connected to the upper center of the base plate 1. A motor 6 is fixedly connected to one side of the chassis 8. A support plate 7 is fixedly connected to the lower end of the motor 6. The rotating shaft 12 is inside the chassis 8. The output end of the motor 6 is fixedly connected to the rotating shaft 12. The other end of the rotating shaft 12 is fixedly connected to the fan blade 13. The fan blade 13 is inside the chassis 8.

[0032] The blade 13 has an asymmetrical streamlined shape. The blade body gradually narrows from the root to the tip, and the width at the root is 3.5 times that at the tip. The overall length is adapted to the duct size of the corresponding equipment. The blade cross-section adopts an airfoil design, with an arc-shaped convex upper surface and a relatively flat lower surface. This difference in curvature can create a pressure difference between the upper and lower surfaces when rotating, thereby improving the air guiding efficiency.

[0033] The motor 6 is stably supported on the housing 8 by the support plate 7. After starting, it drives the rotating shaft 12 to rotate at high speed, which drives the fan blade 13 to rotate and generate airflow. The housing 8 plays a role in protecting the internal structure and ensuring the normal operation of the motor 6 and the rotating shaft 12. The airflow generated by the fan blade 13 provides the power source for the subsequent aeration process and delivers the air to the area that needs to be treated.

[0034] A Z-shaped pipe 9 is fixedly connected to the other side of the casing 8. The filter screen 16 is inside the pipe 9. The filter screen 16 is fixedly connected to the inner wall of the input end of the pipe 9. A microporous aeration plate 10 is fixedly connected to the upper end of the other side of the pipe 9.

[0035] The filter screen 16 is made of 304 stainless steel. The filter screen 16 intercepts solid impurities such as dust, sand, and plant debris in the air, preventing these impurities from entering the Z-shaped pipe 9 and the microporous aeration plate 10 with the airflow.

[0036] The microporous aeration plate 10 is made of polyethylene. Utilizing its dense microporous structure (containing hundreds of micropores per square centimeter), it disperses the airflow delivered by the Z-shaped pipe 9 into tiny bubbles with a diameter of 10-100μm, greatly increasing the contact area between the bubbles and the lake water (compared to ordinary aeration devices, the contact area can be increased by 3-5 times).

[0037] The airflow generated by the fan blade 13 is transported through the Z-shaped pipe 9. The filter screen 16 filters impurities in the air to prevent clogging of subsequent components. The Z-shaped design extends the airflow path, making the airflow distribution more uniform. The microporous aeration plate 10 disperses the air into tiny bubbles, increasing the contact area between the air and the lake water, promoting oxygen dissolution, effectively improving the aerobic environment of the lake bottom sediment, and accelerating the decomposition and purification of pollutants.

[0038] Working principle: The floating block 11 provides buoyancy to the entire device so that it floats on the lake surface. By rotating the rocker arm 2, the external thread 15 of the telescopic column 4 is driven to rotate in the internal thread 14 of the fixed column 3, so as to realize the lifting and lowering adjustment of the telescopic column 4.

[0039] When the operator turns the rocker arm 2, the telescopic column 4 moves up and down using the threaded transmission principle. The cone 5 has a sharp bottom, which can be easily inserted into the lake bottom mud when the device is positioned, increasing the contact area and friction with the bottom mud, effectively resisting the influence of wind, waves and water flow, ensuring that the device remains stable during operation, and avoiding the aeration effect caused by shaking.

[0040] The motor 6 is stably supported on the housing 8 by the support plate 7. After starting, it drives the rotating shaft 12 to rotate at high speed, which drives the fan blade 13 to rotate and generate airflow. The housing 8 plays a role in protecting the internal structure and ensuring the normal operation of the motor 6 and the rotating shaft 12. The airflow generated by the fan blade 13 provides the power source for the subsequent aeration process and delivers the air to the area that needs to be treated.

[0041] The airflow generated by the fan blade 13 is transported through the Z-shaped pipe 9. The filter screen 16 filters impurities in the air to prevent clogging of subsequent components. The Z-shaped design extends the airflow path, making the airflow distribution more uniform. The microporous aeration plate 10 disperses the air into tiny bubbles, increasing the contact area between the air and the lake water, promoting oxygen dissolution, effectively improving the aerobic environment of the lake bottom sediment, and accelerating the decomposition and purification of pollutants.

[0042] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. An aeration device for treating lake bottom sediment pollution, comprising a bottom plate (1), characterized in that: The bottom plate (1) is fixedly connected to floating blocks (11) around its lower end, and fixed columns (3) are fixedly connected to the bottom plate (1). The inner wall of the fixed column (3) is provided with an internal thread (14), the inside of the fixed column (3) is provided with a telescopic column (4), the surface of the telescopic column (4) is provided with an external thread (15), and the external thread (15) is threadedly connected to the internal thread (14); A chassis (8) is fixedly connected to the center of the upper end of the base plate (1). A Z-shaped pipe (9) is fixedly connected to the other side of the chassis (8). A filter screen (16) is provided inside the pipe (9). A filter screen (16) is fixedly connected to the inner wall of the inlet end of the pipe (9). A microporous aeration plate (10) is fixedly connected to the upper end of the other side of the pipe (9).

2. An aeration device for treating lake sediment pollution according to claim 1, characterized in that: The upper end of the telescopic column (4) is fixedly connected to a rocker arm (2), and the lower end of the telescopic column (4) is fixedly connected to a cone (5).

3. An aeration device for treating lake sediment pollution according to claim 2, characterized in that: A motor (6) is fixedly connected to one side of the chassis (8), a support plate (7) is fixedly connected to the lower end of the motor (6), a rotating shaft (12) is provided inside the chassis (8), and the output end of the motor (6) is fixedly connected to the rotating shaft (12).

4. An aeration device for treating lake sediment pollution according to claim 3, characterized in that: The casing (8) is equipped with a fan blade (13), and the other end of the rotating shaft (12) is fixedly connected to the fan blade (13).

5. An aeration device for treating lake sediment pollution according to claim 4, characterized in that: The cone (5) is triangular in shape.

6. An aeration device for treating lake sediment pollution according to claim 5, characterized in that: The blade (13) is asymmetrical and streamlined. The blade body gradually narrows from the root to the tip. The width at the root is 3.5 times that at the tip. The overall length is adapted to the duct size of the corresponding equipment. The blade cross section adopts an airfoil design. The upper surface is arc-shaped and the lower surface is relatively flat. This surface difference can form a pressure difference between the upper and lower surfaces when rotating, thus improving the air guiding efficiency.

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