Circulating treatment device for lake water quality purification

Abstract

The invention belongs to the technical field of lake water purification biological treatment, and discloses a circulation treatment device for lake water quality purification, which comprises a breather pipe, the breather pipe is located at the lake bottom and is externally connected with an air pump, the side wall of the breather pipe is fixedly communicated with a plurality of conical bottom plates, the top of each conical bottom plate is fixedly connected with an aeration disc, and the aeration disc is fixedly connected with the aeration disc. Through cooperation of structures such as an elbow pipe, an arc-shaped plate and a soft scraping plate, a second valve is opened for ventilation in a non-aeration period, the end part of the elbow pipe is arranged in a beveling manner, so that the exhaust direction is deviated, and the elbow pipe is rotationally connected with an exhaust pipe through a lantern ring, so that when gas is exhausted out of the elbow pipe, the gas is discharged out of the elbow pipe, the gas is discharged out of the elbow pipe, and the gas is discharged out of the elbow pipe. An included angle is formed between the gas discharging direction and the axis of the pipeline, and torque is generated, so that the elbow pipe is driven to rotate, the soft scraping plate is driven to continuously rotate on the surface of the aeration disc to scrape impurities, the surface of the aeration disc is automatically cleaned, the aeration disc is effectively prevented from being blocked by impurities, and the maintenance time is prolonged.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of lake water purification biological treatment, and specifically relates to a circulating treatment device for lake water quality purification. BACKGROUND

[0002] At present, landscape lake water purification mainly uses microorganisms to eliminate pollutants in water. Organic pollutants in water are decomposed into harmless substances such as carbon dioxide and water by aerobic microorganisms. Under aerobic conditions, nitrosobacteria and nitrifying bacteria convert toxic ammonia nitrogen into nitrate. Under anoxic conditions, denitrifying bacteria convert nitrate into nitrogen and release it into the atmosphere. Such a cycle removes nitrogen from water, reduces the content of organic matter, effectively removes key elements such as nitrogen and phosphorus, and inhibits algal blooms from the root to improve water self-purification capacity.

[0003] The prior art document with the document number CN113480099A discloses a landscape lake water in-situ circulating treatment process, which belongs to the technical field of landscape water circulating purification. The process is composed of a ground runoff collection tank, an ecological infiltration tank, an enhanced purification unit, a circulating power system, and a main landscape lake water area. The ground runoff collection tank is located at the lowest point around the landscape lake and is connected to the ecological infiltration tank. The ecological infiltration tank is located at the outermost circle of the landscape lake. The enhanced purification unit is arranged in the water inlet area of the landscape lake. The circulating power system is located at the center of the main landscape lake water area. Sponge concrete is used as the building material for the ground runoff collection tank, the ecological infiltration tank, and other structures, which provides good conditions for the filtration and purification of lake water. The device is suitable for various urban landscape lakes. According to the characteristics and pollution status of urban landscape water bodies, the design concept of green, ecology, and environmental protection is adopted to realize in-situ circulating treatment of landscape lake water, improve the quality of landscape lake water, and has the advantages of low cost, simple operation, and sustainable development.

[0004] Although the above-mentioned device realizes in-situ circulating treatment of lake water through the ground runoff collection tank, the ecological infiltration tank, the enhanced purification unit, and the circulating power system, it is not necessary to produce aeration at all times during treatment. The multi-stage aeration unit will have impurities in the lake water deposited on the surface of the air holes when not in use, which can easily cause blockage. When aeration is performed again, some air holes cannot release bubbles, affecting the aeration efficiency. SUMMARY

[0005] The present application aims to provide a circulating treatment device for lake water quality purification that automatically cleans the surface of the aeration disc and promotes the full mixing of water bodies and bubbles to solve the problems raised in the background art.

[0006] To achieve the above object, the present application provides the following technical scheme: a circulating treatment device for lake water quality purification, comprising an air pipe, the air pipe is located at the bottom of the lake and is connected with an air pump, a plurality of conical bottom plates are fixedly connected to the side wall of the air pipe, an aeration disc is fixedly connected to the top of the conical bottom plate, biological filler is arranged on the side edge of the aeration disc, the biological filler floats in the lake water, and the device further comprises:

[0007] A self-rotating mechanism is arranged on the aeration disc.

[0008] A disturbance mechanism is connected with the self-rotating mechanism.

[0009] The self-rotating mechanism comprises a sealing ring fixedly connected to the center of the aeration disc, an exhaust pipe is slidably sleeved to the inner side of the sealing ring, a bend pipe is rotatably connected to the top of the exhaust pipe through a sleeve ring, and the end of the bend pipe is obliquely cut. When the air pump delivers gas to the bend pipe through the air pipe and the exhaust pipe, the gas is sprayed from the obliquely cut end, the reaction force generated by the gas drives the bend pipe to rotate around the axis of the sleeve ring, and in turn drives the exhaust pipe fixedly connected thereto to stably rotate in the sealing ring. The rotating movement makes the disturbance mechanism agitate, effectively prevents the surface of the aeration disc from being blocked, and ensures the long-term stability of the aeration efficiency.

[0010] Preferably, the self-rotating mechanism further comprises a plurality of first valves fixedly connected to the side wall of the air pipe, the side wall of the air pipe is also fixedly connected with a plurality of air inlet pipes, and the air inlet pipes are fixedly connected to the bottom of the exhaust pipe through second valves.

[0011] Preferably, a clamping sleeve is fixedly connected to the outer wall of the bend pipe, a U-shaped frame is slidably sleeved to the outer wall of the clamping sleeve, and the U-shaped frame is elastically connected to the bend pipe through a spring.

[0012] Preferably, an arc-shaped plate is fixedly connected to the bottom of the U-shaped frame, and the curvature of the arc-shaped plate is matched with the aeration disc.

[0013] Preferably, a soft scraper is fixedly connected to the bottom of the arc-shaped plate, the end of the soft scraper abuts against the surface of the aeration disc, the soft scraper is also arranged in an arc shape, and the curvature of the soft scraper is consistent with the surface of the aeration disc; since there is an included angle between the jet direction and the axis of the pipe, according to Newton's third law, the reaction force generated will form a rotating moment to drive the bend pipe to rotate, the rotating movement is transmitted to the arc-shaped plate at the bottom through the U-shaped frame, so as to drive the soft scraper installed at the bottom of the arc-shaped plate to rotate closely to the surface of the aeration disc, and impurities are effectively cleaned.

[0014] Preferably, the disturbance mechanism comprises a sleeve block fixedly connected to the end of the arc-shaped plate, and a groove ring block is slidably abutted to the bottom of the sleeve block.

[0015] Preferably, the groove ring block is fixed to the top edge of the conical bottom plate, and the groove ring block is provided with an annular sliding groove at the top.

[0016] Preferably, the sleeve block is slidably sleeved with a sliding column in the middle, the bottom of the sliding column is fixedly connected with a sliding block, and the sliding block is slidably connected in the annular sliding groove of the groove ring block; when the arc-shaped plate rotates, the sleeve block pushes the sliding column, so that the sliding block continuously slides in the groove ring block for guiding and limiting, and the soft scraper is prevented from being twisted and deviated.

[0017] Preferably, the upper side of the arc-shaped plate is rotatably connected with a plurality of movable leaves through a rotating shaft at equal distances, the movable leaves are long on one side and short on the other side, and the movable leaves are symmetrically distributed on both sides of the arc-shaped plate; since the movable leaves are long on one side and short on the other side, the movable leaves on both sides of the arc-shaped plate are basically in a vertical state under the action of their own gravity, and the adhesion of the soft scraper to the surface of the aerator plate is not affected by the buoyancy.

[0018] Preferably, a plurality of arc blocks are symmetrically fixed to both sides of the arc-shaped plate, and the end portions of the arc blocks abut against the movable leaves; during the aeration period, the thrust of the bubbles can rotate the plurality of vertical movable leaves into a horizontal lapping state, and the rotation amplitude of the movable leaves is limited through the limiting abutment of the arc blocks, so that the movable leaves can be stably kept in the horizontal lapping state; at this time, the movable leaves on both sides of the arc-shaped plate are horizontally lapped with each other, forming an arc-surface spreading plate, greatly increasing the stress area, and making the soft scraper float, avoiding any hindrance of the soft scraper to the release of bubbles during the high-efficiency aeration stage, and ensuring the maximum aeration efficiency; in cooperation with the suspended soft scraper in rotation, the dense rising bubble flow can be stirred and cut, the bubbles are dispersed, the gas and lake water are more fully mixed, and the gas-liquid mass transfer efficiency and oxygen utilization rate are improved.

[0019] Compared with the prior art, the beneficial effects of the present application are as follows:

[0020] By cooperating the structures such as the elbow pipe, the arc-shaped plate and the soft scraper, the soft scraper at the bottom of the arc-shaped plate is continuously rotated on the surface of the aerator plate, and the deposited impurities are scraped off; during the non-aeration period, the second valve is opened for ventilation; since the end portion of the elbow pipe is obliquely cut, the direction of the exhaust is deviated, and the elbow pipe is rotatably connected with the exhaust pipe through the sleeve ring, so that when the gas is discharged from the elbow pipe, the discharge direction of the gas and the pipe axis have an angle, a moment is generated, the elbow pipe is driven to rotate, and the soft scraper is continuously rotated on the surface of the aerator plate to scrape off the impurities, thereby automatically cleaning the surface of the aerator plate, effectively avoiding the blockage of the aerator plate by the impurities, and prolonging the maintenance time.

[0021] The application facilitates the automatic floating of the soft scraper during the aeration period, does not affect the release of bubbles by the aerator, and when the aerator continuously releases dense bubbles, the thrust of the bubbles can rotate a plurality of vertical movable leaves into a horizontal lapping state, and through the limiting abutment of the arc block, the horizontal lapping state is stably maintained, at this time, the movable leaves form an arc surface spread plate, greatly increasing the stress area, so that the soft scraper is separated from the surface of the aerator by the bubbles and floats in the bubbles to prevent hindering the bubble discharge, at this time, the second valve is opened to drive the elbow pipe and the soft scraper to rotate as a whole, and after being continuously stirred by the dense bubbles, the bubbles are diffused outward, the water body is disturbed, the water body and the bubbles are fully mixed, which is beneficial to the growth of microorganisms in the biological filler area, so that the number of microorganisms can be controlled according to the pollution degree of the water body, thereby enhancing the adaptability of the device and saving energy consumption. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 It is a schematic diagram of the circulating purification of the application;

[0023] Figure 2 It is a schematic diagram of the structure and cooperation relationship of the aerator and the air pipe of the application;

[0024] Figure 3 It is a schematic diagram of the structure and cooperation relationship of the aerator and the air pipe of the application; Figure 2

[0025] Figure 4 It is a schematic diagram of the structure and cooperation relationship of the aerator and the air pipe of the application;

[0026] Figure 5 It is a schematic diagram of the structure and cooperation relationship of the aerator and the air pipe of the application;

[0027] Figure 6 It is a schematic diagram of the structure and cooperation relationship of the aerator and the air pipe of the application; Figure 5

[0028] Figure 7 It is a schematic diagram of the structure and cooperation relationship of the aerator and the air pipe of the application;

[0029] Figure 8 It is a schematic diagram of the structure and cooperation relationship of the aerator and the air pipe of the application;

[0030] Figure 9 It is a schematic diagram of the structure and cooperation relationship of the aerator and the air pipe of the application;

[0031] Figure 10 It is a schematic diagram of the structure and cooperation relationship of the aerator and the air pipe of the application; Figure 9

[0032] Figure 11 It is a schematic diagram of the structure and cooperation relationship of the aerator and the air pipe of the application.

[0033] In the figure: ​​​

[0034] 100, air pipe; 200, conical bottom plate; 300, aerator; 400, biological filler; 500, self-rotating mechanism; 510, elbow pipe; 520, exhaust pipe; 530, sleeve ring; 540, U-shaped frame; 550, clamping sleeve; 560, second valve; 570, arc plate; 580, sealing ring; 590, air inlet pipe; 5100, soft scraper; 5110, first valve; 600, disturbance mechanism; 610, groove ring block; 620, sleeve block; 630, sliding column; 640, movable blade; 650, rotating shaft; 660, arc block; 670, sliding block. DETAILED DESCRIPTION

[0035] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to 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 the embodiments. Based on the embodiments in the present application, all other embodiments obtained by a person of ordinary skill in the art without creative work fall within the protection scope of the present application.

[0036] As shown in the drawings, the present application provides a circulating treatment device for lake water quality purification, which comprises an air pipe 100, the air pipe 100 is located at the bottom of the lake and is connected with an air pump, a plurality of conical bottom plates 200 are fixedly connected with the side wall of the air pipe 100, an aerator 300 is fixedly connected with the top of the conical bottom plate 200, biological fillers 400 are arranged on the side edge of the aerator 300, the biological fillers 400 float in the lake water, and the device further comprises: Figures 1 to 11 a self-rotating mechanism 500, the self-rotating mechanism 500 is located on the aerator 300;

[0037] a disturbance mechanism 600, the disturbance mechanism 600 is connected with the self-rotating mechanism 500;

[0038]

[0039] The self-rotating mechanism 500 comprises a sealing ring 580 fixedly connected with the center of the aerator 300, an exhaust pipe 520 is slidably sleeved with the inner side of the sealing ring 580, an elbow pipe 510 is rotatably connected with the top of the exhaust pipe 520 through a sleeve ring 530, and the end of the elbow pipe 510 is obliquely cut.

[0040] ​With the above scheme: in the lake water purification and recycling device, the rotating mechanism 500 constitutes the core of dynamic work, when the air pump transports gas to the elbow pipe 510 through the air pipe 100 and the exhaust pipe 520, the gas is sprayed from the oblique cutting end, the reaction force generated will push the elbow pipe 510 to rotate around the axis of the sleeve ring 530, and then drive the exhaust pipe 520 to rotate stably in the sealing ring 580. This rotating movement makes the disturbance mechanism 600 agitate, effectively preventing the surface of the aerator 300 from being blocked, ensuring the long-term stability of the aeration efficiency. The system generates directional flow by installing a flow inducer in the lake, which has a dual purpose, one is to break the thermocline caused by temperature difference, prevent the water from being stratified and causing hypoxia in the lower layer, the other is to continuously push the lake water rich in pollutants to the biological filler 400 area in the core of the system. At the same time, the aeration device in the middle of the lake is started, and the air pump transports compressed air to the conical bottom plate 200 through the air pipe 100. When the first valve 5110 is opened, air is filled into the upper aerator 300, making it expand, and then releasing dense and small bubbles from the micro-holes on the surface. These bubbles, during the floating process, on the one hand, inject dissolved oxygen into the water body, providing sufficient oxygen for the metabolic activity of aerobic microorganisms attached to the biological filler 400, thereby improving the decomposition rate of organic pollutants and ammonia nitrogen; on the other hand, the bubble group cooperates with the water flow pushed by the flow inducer to reach the biological filler 400 area, forming an efficient reaction zone where gas, water and biofilm are fully contacted and mixed. The polluted lake water is decomposed and transformed by microorganisms in this area, and when it is released from the other side of the filler area, it has become clean water. These clean water is then returned to the more polluted water area for dilution, thus forming a complete dynamic purification cycle that can effectively improve the self-purification capacity of the water body.

[0041] As shown in Figures 1 to 5 , Figures 9 to 11 , the rotating mechanism 500 further includes a plurality of first valves 5110 fixed to the side wall of the air pipe 100, the side wall of the air pipe 100 is also fixedly connected with a plurality of air inlet pipes 590, the air inlet pipes 590 are fixedly connected to the bottom of the exhaust pipe 520 through the second valve 560; the outer wall of the elbow pipe 510 is fixedly connected with a sleeve 550, the outer wall of the sleeve 550 is slidingly connected with a U-shaped frame 540, the U-shaped frame 540 is elastically connected with the elbow pipe 510 through a spring; the bottom of the U-shaped frame 540 is fixedly connected with an arc-shaped plate 570, the curvature of the arc-shaped plate 570 is matched with the aerator 300; the bottom of the arc-shaped plate 570 is fixedly connected with a soft scraper 5100, the end of the soft scraper 5100 abuts against the surface of the aerator 300, the soft scraper 5100 is also arc-shaped and the curvature is consistent with the surface of the aerator 300.

[0042] With the above scheme: when the gas is discharged from the elbow pipe 510, an opposite reaction force will be applied to the elbow pipe 510 in the direction opposite to the movement direction of the gas. The elbow pipe 510 is bent at the end, the gas discharge direction is L-shaped with the pipe axis, there is an included angle, and the direction of the reaction force will not be collinear with the pipe axis, thereby generating a moment. At this time, the momentum changes: the gas is accelerated in the elbow pipe 510 and then discharged, and the momentum change rate is opposite to the direction of the gas discharge. Since the bent part of the elbow pipe 510 is free to rotate, the moment overcomes friction or inertia to drive the elbow pipe 510 to rotate. When there is no aeration, the first valve 5110 is closed and the second valve 560 is opened, and the gas flow from the air pump no longer enters the aeration disc 300, but is introduced into the exhaust pipe 520 through the air inlet pipe 590 and finally discharged from the beveled end of the elbow pipe 510. Since the jet direction has an included angle with the pipe axis, according to Newton's third law, the reaction force generated will form a rotating moment to drive the elbow pipe 510 to rotate. This rotating movement is transmitted to the arc plate 570 connected at the bottom through the U-shaped frame 540, thereby driving the soft scraper 5100 installed at the bottom of the arc plate 570 to rotate closely to the surface of the aeration disc 300, effectively cleaning the impurities. To ensure the scraping effect, the U-shaped frame 540 and the elbow pipe 510 are abutted by the spring, so that the soft scraper 5100 can always be adaptively pressed tightly to the surface of the aeration disc 300 during rotation.

[0043] As shown in Figure 2 、 Figures 5 to 10 , the disturbance mechanism 600 includes a sleeve block 620 fixed to the end of the arc plate 570, and a recess ring block 610 is slidingly abutted at the bottom of the sleeve block 620; the recess ring block 610 is fixed to the top edge of the conical bottom plate 200, and an annular sliding groove is formed at the top of the recess ring block 610; a sliding column 630 is slidingly sleeved in the middle of the sleeve block 620, a sliding block 670 is fixed to the bottom of the sliding column 630, and the sliding block 670 is slidingly connected in the annular sliding groove of the recess ring block 610; a plurality of movable leaves 640 are equidistantly connected by a rotating shaft 650 on the upper side of the arc plate 570, and the movable leaves 640 are distributed with one long side and one short side on both sides of the rotating shaft 650; a plurality of arc blocks 660 are symmetrically fixed on both sides of the arc plate 570, and the end of the arc block 660 is abutted with the movable leaf 640.

[0044] The above scheme is adopted as follows: During non-aeration periods, since the movable blades 640 are distributed with one long and one short on both sides of the rotating shaft 650, the movable blades 640 located on both sides of the arc plate 570 are basically in a vertical state under their own weight, and will not generate buoyancy that affects the adhesion between the soft scraper 5100 and the surface of the aeration disc 300. During the aeration period, the thrust of the bubbles can rotate several vertical movable blades 640 into a horizontal overlapping state, and the rotation range of the movable blades 640 is limited by the limiting abutment of the arc block 660, which can stably maintain the horizontal overlapping state. At this time, the movable blades 640 on both sides of the arc plate 570 are horizontally overlapping each other, forming an arc-shaped spread plate, which greatly increases the force-bearing area and makes the soft scraper 5100 float. This avoids the soft scraper 5100 causing any obstruction to the release of bubbles during the high-efficiency aeration stage, ensuring the maximization of aeration efficiency. At this point, opening the second valve 560 causes the elbow pipe 510 and the soft scraper 5100 to rotate as a whole. The dense bubbles continuously agitate the air, causing the air to diffuse outwards. The suspended soft scraper 5100, while rotating, stirs and cuts the densely rising bubble flow, breaking up the bubbles and promoting more thorough mixing of gas and lake water, thus improving gas-liquid mass transfer efficiency and oxygen utilization.

[0045] Working principle and usage process of this invention:

[0046] Firstly, purification devices can be installed in the landscape lake from the beginning of construction to ensure the lake water remains "crystal clear" with relatively few overall pollutants. Furthermore, the area below the ventilation pipe 100 is paved with concrete, preventing the growth of aquatic plants and facilitating future maintenance. This also ensures that the movable blades 640 and grooved rings 610 in the device are not easily entangled or blocked by algae or other plant debris. The device will be regularly inspected by personnel. The flow promoter propels the lake water, breaking up the thermocline and preventing oxygen depletion in the lower layers caused by stagnant water stratification. The water is continuously circulated to the biological filler 400 in the following direction: Figure 1 As indicated by the arrows, the middle of the lake is continuously oxygenated by an aeration device, providing sufficient nutrients for the metabolic activities of aerobic organisms within the biological packing material 400, thereby increasing the rate of pollutant decomposition. Polluted lake water is pushed towards the biological packing material 400 by a flow promoter. During this process, air is pumped into the aeration pipe 100 via an air pump. Then, the first valve 5110 is opened, allowing oxygen to fill the conical bottom plate 200. The aeration disc 300 expands, continuously releasing air bubbles from the micropores into the water. These bubbles travel with the water flow to the area of ​​the biological packing material 400, where microorganisms continuously decompose pollutants. The purified lake water is then released from the other side of the biological packing material 400, and then the clean water is returned to the polluted side of the lake to dilute the polluted water. This cycle repeats continuously, effectively enhancing the water body's self-purification capacity.

[0047] In the non-aeration period, the first valve 5110 is closed and the second valve 560 is opened. The gas in the air pipe 100 reaches the exhaust pipe 520 through the air inlet pipe 590, and then enters the elbow pipe 510 for exhaust. Since the end of the elbow pipe 510 is beveled, the direction of the exhaust is offset. The elbow pipe 510 is rotationally connected to the exhaust pipe 520 through the sleeve ring 530, so when the gas is discharged from the elbow pipe 510, the direction of the gas discharge has an angle with the pipe axis, and the direction of the reaction force will not be collinear with the pipe axis, generating a moment to drive the elbow pipe 510 to rotate. When the elbow pipe 510 rotates, the U-shaped frame 540 sleeved on the elbow pipe 510 also rotates, and the arc-shaped plate 570 fixed at the bottom of the U-shaped frame 540 also rotates, so that the soft scraper 5100 at the bottom of the arc-shaped plate 570 continuously rotates on the surface of the aeration disc 300 to scrape off the deposited impurities. Since the U-shaped frame 540 abuts against the elbow pipe 510 through the spring, the soft scraper 5100 is always in abutment with the surface of the aeration disc 300 during rotation. Since the movable leaves 640 are distributed long and short on both sides of the rotating shaft 650, the movable leaves 640 on both sides of the arc-shaped plate 570 are basically in a vertical state under the action of their own gravity, and will not produce buoyancy to affect the adhesion of the soft scraper 5100 to the surface of the aeration disc 300;

[0048] In the aeration period, when the second valve 560 is closed, the elbow pipe 510 and the soft scraper 5100 are stationary. At this time, the first valve 5110 is opened, and the gas is released to make the aeration disc 300 swell and the dense bubbles are released from the surface of the aeration disc 300. Under the thrust of the bubbles, a plurality of vertical movable leaves 640 can be rotated to a horizontal lapping state, and the rotation amplitude of the movable leaves 640 is limited by the limiting abutment of the arc block 660, so that the movable leaves 640 can be stably kept in the horizontal lapping state. At this time, the movable leaves 640 on both sides of the arc-shaped plate 570 are in a horizontal state and are lapped with each other to form an arc-shaped plate, which greatly increases the stress area, so that the soft scraper 5100 is separated from the surface of the aeration disc 300 by the bubbles, avoiding affecting the release of the bubbles from the aeration disc 300;

[0049] Further, in the aeration period, when the second valve 560 is also opened, the soft scraper 5100 is suspended in the dense bubbles by the movable leaves 640. When the gas is discharged from the elbow pipe 510, the elbow pipe 510 and the soft scraper 5100 can be rotated as a whole. After being stirred by the dense bubbles, the bubbles are diffused outward to promote the mixing of the water body and the bubbles. When the arc-shaped plate 570 rotates, the sleeve block 620 pushes the slide column 630, so that the slide block 670 continuously slides in the groove ring block 610 for guiding and limiting, to ensure that the soft scraper 5100 does not produce torsional deviation.

[0050] It is to be understood that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting; it is not intended to exclude myriad other embodiments of the present application that other inventors can develop based on the same general inventive concepts embodied by the described embodiments. That is, although the present application is described in terms of particular embodiments and illustrative figures, it should be apparent that the scope of the present application is not limited to these specific embodiments.

[0051] While the embodiments of the application have been shown and described herein, it will be understood by those skilled in the art that many changes, modifications, substitutions and alterations to these embodiments can be made without departing from the principles and spirits of the application, and it is intended that the scope of the application be limited solely by the scope of the appended claims and the equivalents thereof.

Claims

1. A circulating treatment device for lake water purification, comprising an air pipe (100) located at the bottom of the lake and connected to an external air pump, wherein a plurality of conical bottom plates (200) are fixedly connected to the side wall of the air pipe (100), an aeration disc (300) is fixedly connected to the top of the conical bottom plate (200), and biological packing material (400) is provided on the side of the aeration disc (300), the biological packing material (400) floating in the lake water, characterized in that: Also includes: A self-rotating mechanism (500) is located on an aeration disc (300); A disturbance mechanism (600) is connected to a self-rotating mechanism (500); The self-rotating mechanism (500) includes a sealing ring (580) fixed at the center of the aeration disc (300), an exhaust pipe (520) is slidably sleeved on the inner side of the sealing ring (580), and an elbow pipe (510) is rotatably connected to the top of the exhaust pipe (520) through a collar (530), with the end of the elbow pipe (510) being obliquely cut.

2. The circulating treatment device for lake water purification according to claim 1, characterized in that: The self-rotating mechanism (500) also includes a number of first valves (5110) fixed to the side wall of the vent pipe (100), and the side wall of the vent pipe (100) is also fixedly connected to a number of air inlet pipes (590), and the air inlet pipes (590) are fixedly connected to the bottom of the exhaust pipe (520) through second valves (560).

3. The circulating treatment device for lake water purification according to claim 2, characterized in that: The outer wall of the elbow pipe (510) is fixedly connected to a ferrule (550), and a U-shaped frame (540) is slidably sleeved on the outer wall of the ferrule (550). The U-shaped frame (540) is elastically connected to the elbow pipe (510) by a spring.

4. The circulating treatment device for lake water purification according to claim 3, characterized in that: The bottom of the U-shaped frame (540) is fixed with an arc plate (570), the curvature of which is adapted to the aeration disc (300).

5. The circulating treatment device for lake water purification according to claim 4, characterized in that: A soft scraper (5100) is fixed to the bottom of the arc plate (570). The end of the soft scraper (5100) abuts against the surface of the aeration disc (300). The soft scraper (5100) is also arc-shaped, and its curvature is consistent with the surface of the aeration disc (300).

6. The circulating treatment device for lake water purification according to claim 4, characterized in that: The disturbance mechanism (600) includes a sleeve block (620) fixed to the end of the arc plate (570), and the bottom of the sleeve block (620) slides against a grooved ring block (610).

7. The circulating treatment device for lake water purification according to claim 6, characterized in that: The grooved ring block (610) is fixed to the top edge of the conical base plate (200), and the top of the grooved ring block (610) is provided with an annular groove.

8. The circulating treatment device for lake water purification according to claim 7, characterized in that: The middle part of the sleeve block (620) is slidably sleeved with a sliding column (630), and the bottom of the sliding column (630) is fixedly connected with a slider (670). The slider (670) is slidably connected in the annular groove of the grooved ring block (610).

9. The circulating treatment device for lake water purification according to claim 4, characterized in that: The upper side of the arc plate (570) is equidistantly connected to a number of movable blades (640) via a rotating shaft (650). The movable blades (640) are distributed on both sides of the rotating shaft (650) with one side longer than the other. The multiple movable blades (640) are symmetrically distributed on both sides of the arc plate (570).

10. The circulating treatment device for lake water purification according to claim 9, characterized in that: Several arc blocks (660) are symmetrically fixed to both sides of the arc plate (570), and the ends of the arc blocks (660) abut against the movable blade (640).

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