High-efficiency air flotation machine for water treatment

Abstract

The utility model relates to air supporting machine technical field discloses a high -efficient air supporting machine for water treatment, including installation frame, the inside fixed connection of installation frame has the reaction pool mechanism, the bottom fixed connection of reaction pool mechanism has a plurality of support column, the right side fixed connection of reaction pool mechanism has the residue discharge mechanism, the reaction pool mechanism includes pretreatment subassembly, the outside fixed connection of pretreatment subassembly in the inside of installation frame, the left side fixed connection of pretreatment subassembly has the connecting block, the top fixed connection of connecting block has two inlet pipes. In the utility model, through the cooperation of double inlet pipes and water distribution tank, the uniform bubble release of horizontal dissolved gas tank, combined with the graded treatment of impurities, the efficient removal of suspended impurities and colloids, the improvement of effluent water quality, the reflux treatment of water to reduce waste, the automatic residue scraping and convenient residue discharge structure, the improvement of operation convenience and operation reliability.

Description

Technical Field

[0001] This utility model relates to the field of air flotation technology, and in particular to a high-efficiency air flotation machine for water treatment. Background Technology

[0002] An air flotation machine is a water treatment device that introduces tiny air bubbles into water to cause impurities to adhere and form scum, which is then separated and removed. It is used to treat suspended solids, oils, and other pollutants in wastewater. High-efficiency air flotation machines for water treatment are upgraded water treatment equipment that can generate denser microbubbles, enhance the efficiency of impurity adhesion, and quickly separate suspended solids, oils, and other pollutants, making them suitable for high-load wastewater.

[0003] In existing technologies, some air flotation machines first dissolve air into water under pressure to form dissolved air water, which is then introduced into an atmospheric pressure tank to release a large number of microbubbles under reduced pressure. The bubbles adsorb suspended solids and oils in the wastewater to form low-density air flotation bodies, which float up to form scum and are then scraped off, and the purified water is discharged from the bottom of the tank.

[0004] In practical use, some high-efficiency air flotation machines for water treatment are prone to local water flow impact and dead zones in the inlet water, resulting in insufficient contact between air bubbles and difficulty in classifying and treating impurities of different densities. This leads to incomplete removal of suspended impurities and colloidal particles and poor effluent quality. Therefore, a high-efficiency air flotation machine for water treatment is proposed to solve the above problems. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a high-efficiency air flotation machine for water treatment, which aims to improve the problem that some high-efficiency air flotation machines for water treatment are difficult to classify and treat impurities of different densities.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a high-efficiency air flotation machine for water treatment, including an installation frame, a reaction tank mechanism fixedly connected to the inner side of the installation frame, a plurality of support columns fixedly connected to the bottom of the reaction tank mechanism, and a slag discharge mechanism fixedly connected to the right side of the reaction tank mechanism.

[0007] The reaction tank mechanism includes a pretreatment component, which is externally fixedly connected to the inner side of the mounting frame. A connecting block is fixedly connected to the left side of the pretreatment component, and two water inlet pipes are fixedly connected to the top of the connecting block. A separation component is fixedly connected to the right side of the pretreatment component.

[0008] As a further description of the above technical solution: the pretreatment component includes a water distribution trough, the outside of which is fixedly connected to the inside of the mounting frame, four slag collection hoppers are fixedly connected to the bottom of the water distribution trough, a sludge discharge valve is fixedly connected to the bottom of the slag collection hoppers, and an inclined plate is fixedly connected to the right side of the inside of the water distribution trough.

[0009] As a further description of the above technical solution: the separation component includes an air flotation separation tank, the left side of which is fixedly connected to the right side of the water distribution tank, eight conical buckets are fixedly connected to the top of the air flotation separation tank, opening and closing valves are fixedly connected to the bottom of the conical buckets, and a guide plate is fixedly connected to the inside right side of the air flotation separation tank.

[0010] As a further description of the above technical solution: the slag discharge mechanism includes a fixed plate, the left side of the fixed plate is fixedly connected to the right side of the air flotation separation tank, two tripods are fixedly connected to the bottom of the fixed plate, the left sides of the two tripods are fixedly connected to the right side of the air flotation separation tank, a slag scraping assembly is fixedly connected to the top of the fixed plate, and a dissolved gas release assembly is fixedly connected to the right side of the slag scraping assembly.

[0011] As a further description of the above technical solution: the slag scraping assembly includes a motor, the bottom of which is fixedly connected to the top rear side of the fixed plate, the drive end of the motor is fixedly connected to a drive pulley, a connecting belt is sleeved on the outside of the drive pulley, a slag storage tank is fixedly connected to the right side of the fixed plate, and a rotating column is rotatably connected to the top of the inner side of the slag storage tank.

[0012] As a further description of the above technical solution: a driven pulley is fixedly connected to the rear side of the rotating column, the driven pulley is sleeved on the inner side of the connecting belt, and three scrapers are fixedly connected to the outside of the rotating column.

[0013] As a further description of the above technical solution: the dissolved gas release component includes an arc-shaped flow limiting plate, the bottom of which is fixedly connected to the top right side of the slag storage tank, a filter tank is fixedly connected to the right side of the slag storage tank, two L-shaped water pipes are fixedly connected to the bottom of the filter tank, a horizontal dissolved gas tank is fixedly connected to the ends of the two L-shaped water pipes, and the left side of the horizontal dissolved gas tank is fixedly connected to the right side of the air flotation separation tank.

[0014] As a further description of the above technical solution: the output end of the horizontal dissolved gas tank is fixedly connected to a connecting water pipe, four fixing blocks are fixedly connected to the outside of the connecting water pipe, a pressurized water pump is fixedly connected to the end of the connecting water pipe, a release pipe is fixedly connected to the output end of the pressurized water pump, and a one-way valve is installed inside the release pipe.

[0015] This utility model has the following beneficial effects:

[0016] 1. In this utility model, the combined design of double inlet pipes and water distribution trough increases the sewage inlet flow rate and eliminates dead zones in the water flow, ensuring full contact of subsequent air bubbles. The horizontal dissolved air tank, combined with a pressurized water pump and a one-way valve, releases uniform and dense air bubbles, enhancing the adsorption capacity of impurities. At the same time, the conical hopper and slag collection hopper classify and treat impurities of different densities, effectively removing suspended impurities and colloidal particles from sewage and significantly improving the quality of effluent.

[0017] 2. In this utility model, the treated water in the slag storage tank is returned to the horizontal dissolved air tank through the L-shaped water pipe. The filter tank can also return the water in the scum to the air flotation separation tank, reducing water waste. The sludge discharge valve of the slag collection hopper, the opening and closing valve of the conical hopper and the slag discharge port of the slag storage tank facilitate regular slag discharge. The scraper and the motor work together to automatically scrape the slag, reducing the intensity of manual operation and improving the overall operation convenience and reliability. Attached Figure Description

[0018] Figure 1 This is a three-dimensional schematic diagram of a high-efficiency air flotation machine for water treatment proposed in this utility model;

[0019] Figure 2 This is a schematic diagram of the slag collection hopper of a high-efficiency air flotation machine for water treatment proposed in this utility model;

[0020] Figure 3 This is a schematic diagram of the connecting water pipe of a high-efficiency air flotation machine for water treatment proposed in this utility model;

[0021] Figure 4 for Figure 3 Enlarged view of point A in the middle.

[0022] Legend:

[0023] 1. Mounting frame; 2. Reaction tank mechanism; 21. Pretreatment component; 211. Water distribution trough; 212. Sludge collection hopper; 213. Sludge discharge valve; 214. Inclined plate; 22. Connecting block; 23. Water inlet pipe; 24. Separation component; 241. Air flotation separator; 242. Conical hopper; 243. Opening and closing valve; 244. Guide plate; 3. Support column; 4. Sludge discharge mechanism; 41. Fixing plate; 42. Sludge scraping component; 421. Motor; 422. Driven pulley; 423. Connecting belt; 424. Driven pulley; 425. Rotating column; 426. Scraper; 427. Slag tank; 43. Dissolved gas release assembly; 431. Arc-shaped flow restrictor; 432. Filter tank; 433. L-shaped water pipe; 434. Horizontal dissolved gas tank; 435. Connecting water pipe; 436. Fixing block; 437. Pressurized water pump; 438. Release pipe; 439. Check valve; 44. Tripod. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Reference Figure 1 , Figure 2 , Figure 3 This utility model provides an embodiment of a high-efficiency dissolved air flotation (DAF) machine for water treatment, comprising an installation frame 1, which is a rectangular steel structure frame used to support the overall weight of the equipment and ensure structural stability. A reaction tank mechanism 2 is fixedly connected to the inner side of the installation frame 1. The reaction tank mechanism 2 is the core area for realizing the separation of wastewater pretreatment and DAF. Multiple support columns 3 are fixedly connected to the bottom of the reaction tank mechanism 2 to support it. A sludge discharge mechanism 4 is fixedly connected to the right side of the reaction tank mechanism 2, responsible for efficiently collecting and discharging the sludge generated by DAF. The reaction tank mechanism 2 includes a pretreatment component 21. Component 21 is used for preliminary equalization and sedimentation of sewage. The pretreatment component 21 is externally fixed to the inside of the installation frame 1 to ensure that the pretreatment component 21 is installed firmly. A connecting block 22 is fixedly connected to the left side of the pretreatment component 21. The connecting block 22 is a rectangular metal block that connects the inlet pipe 23 to the pretreatment component 21. Two inlet pipes 23 are fixedly connected to the top of the connecting block 22. The two inlet pipes 23 are symmetrically distributed to increase the sewage inlet flow and avoid local water flow impact. A separation component 24 is fixedly connected to the right side of the pretreatment component 21. The separation component 24 is the key area for sewage and air bubbles to mix and achieve air flotation separation.

[0026] Specifically, the installation frame 1 stabilizes the equipment and ensures structural stability, the support column 3 supports the reaction tank mechanism 2; the double inlet pipes 23 symmetrically guide sewage, avoid impact and increase flow rate, the pretreatment component 21 evenly disperses impurities, the separation component 24 realizes the mixing and flotation separation of sewage bubbles, and the sludge discharge mechanism 4 efficiently collects and discharges sludge, thus improving the overall efficiency and stability of water treatment flotation.

[0027] The pretreatment component 21 includes a water distribution tank 211, which is a rectangular tank with an open top and an internal cavity structure. The water distribution tank 211 is externally fixedly connected to the inside of the mounting frame 1 to ensure that it does not shift during operation. Four sludge collection hoppers 212 are fixedly connected to the bottom of the water distribution tank 211. The four sludge collection hoppers 212 are evenly distributed at the bottom of the water distribution tank 211 and have a funnel-shaped structure, which can accelerate the collection of denser impurities. A sludge discharge valve 213 is fixedly connected to the bottom of the sludge collection hopper 212. The sludge discharge valve 213 is a manually controlled valve, which allows the operator to periodically discharge the settled impurities in the sludge collection hopper 212. An inclined plate 214 is fixedly connected to the right side of the inside of the water distribution tank 211. The inclined plate 214 is arranged at an angle, which can prolong the sewage retention time and change the water flow direction. The separation component 24 includes an air flotation system. The separation tank 241 is a rectangular tank that can accommodate wastewater and air bubbles for mixing and separation. The left side of the air flotation separation tank 241 is fixedly connected to the right side of the water distribution tank 211 to ensure that the pretreated wastewater can flow in smoothly. The top of the air flotation separation tank 241 is fixedly connected to eight conical buckets 242, which are symmetrically distributed in two rows and have a conical structure that is wider at the top and narrower at the bottom. This can accelerate the settling and aggregation of small particles. The bottom of the conical buckets 242 is fixedly connected to an opening and closing valve 243, which can be opened and closed manually or automatically to discharge the settling impurities in the conical buckets 242. The inside right side of the air flotation separation tank 241 is fixedly connected to a guide plate 244, which is an inclined rectangular plate that can guide the scum layer to diffuse towards the scum discharge mechanism 4.

[0028] Specifically, in the pretreatment component 21, the water distribution tank 211 is stably installed, the slag collection hopper 212 accelerates the settling of impurities, the sludge discharge valve 213 facilitates the periodic discharge of impurities, the inclined plate 214 extends the sewage retention time, in the separation component 24, the air flotation separation tank 241 provides sewage air bubbles for mixing, the conical bucket 242 promotes the settling of particles, the opening and closing valve 243 discharges impurities, and the guide plate 244 guides the floating slag to the slag discharge mechanism 4, thereby improving the pretreatment and air flotation separation effect.

[0029] Reference Figure 1 , Figure 3 , Figure 4The slag discharge mechanism 4 includes a fixed plate 41, which is a rectangular metal plate that supports the slag scraper assembly 42. The left side of the fixed plate 41 is fixedly connected to the right side of the air flotation separator 241 to ensure a stable connection between the fixed plate 41 and the air flotation separator 241. Two triangular brackets 44 are fixedly connected to the bottom of the fixed plate 41. The two triangular brackets 44 are right-angled triangular steel structures that enhance the support strength of the fixed plate 41. The left side of the two triangular brackets 44 is fixedly connected to the right side of the air flotation separator 241 to further improve the overall stability of the slag discharge mechanism 4. To ensure stability, a scum scraping assembly 42 is fixedly connected to the top of the fixed plate 41. The scum scraping assembly 42 is used to scrape off the scum on the surface of the liquid in the air flotation separation tank 241. A dissolved gas release assembly 43 is fixedly connected to the right side of the scum scraping assembly 42. The dissolved gas release assembly 43 is used to prepare and release supersaturated dissolved gas water to generate microbubbles. The scum scraping assembly 42 includes a motor 421 with adjustable output speed. The bottom of the motor 421 is fixedly connected to the rear top of the fixed plate 41 to ensure that the motor 421 does not shake during operation. The drive end of the motor 421 is fixed. A drive pulley 422 is fixedly connected to the fixed plate 41. The drive pulley 422 is a round metal wheel that can rotate synchronously with the drive end of the motor 421. A connecting belt 423 made of rubber is fitted around the drive pulley 422 to transmit power to the drive pulley 422. A slag storage tank 427 is fixedly connected to the right side of the fixed plate 41. The slag storage tank 427 is a rectangular tank with an open top, used to collect the scum scraped off by the scraper 426. A rotating column 425 is rotatably connected to the top of the inner side of the slag storage tank 427. The rotating column 425 is round. A cylindrical metal rod can rotate around its own axis. A driven pulley 424 is fixedly connected to the rear side of the rotating column 425. The driven pulley 424 has the same specifications as the driving pulley 422 and can rotate under the drive of the connecting belt 423. The outer side of the driven pulley 424 is sleeved on the inner side of the connecting belt 423 to ensure the stability of power transmission. Three scrapers 426 are fixedly connected to the outside of the rotating column 425. The three scrapers 426 are evenly distributed on the outside of the rotating column 425 at a 120-degree angle. They are made of rubber and can scrape off scum in close contact with the liquid surface.

[0030] Specifically, in the slag discharge mechanism 4, the fixed plate 41 and the triangular frame 44 stabilize the components and improve stability; the motor 421 transmits power through the pulley and belt, driving the rotating column 425 and the scraper 426 to scrape the floating slag to the slag storage tank 427; the dissolved gas release component 43 generates microbubbles to assist in air flotation, and the rubber scraper 426 scrapes the slag efficiently by sticking to the liquid surface, thus improving the overall efficiency of slag removal and the stability of the slag discharge mechanism 4.

[0031] The dissolved air release component 43 includes an arc-shaped flow restrictor 431, which is an arc-shaped metal plate that restricts the diffusion of scum from the scum storage tank 427 to the filter tank 432. The bottom of the arc-shaped flow restrictor 431 is fixedly connected to the top right side of the scum storage tank 427 to ensure the flow restriction effect. The filter tank 432 is fixedly connected to the right side of the scum storage tank 427. The filter tank 432 is equipped with a filter screen to filter the water in the scum. Two L-shaped water pipes 433 are fixedly connected to the bottom of the filter tank 432. The two L-shaped water pipes 433 are symmetrically distributed and are used to transport the filtered water to the horizontal dissolved air tank 434. The ends of the two L-shaped water pipes 433 are fixedly connected to the horizontal dissolved air tank 434. The horizontal dissolved air tank 434 is a cylindrical horizontal tank used to prepare supersaturated dissolved air water. The left side of the horizontal dissolved air tank 434 is fixedly connected to the right side of the air flotation separation tank 241 to ensure the horizontal dissolved air separation effect. The gas tank 434 is securely installed. The output end of the horizontal dissolved air tank 434 is fixedly connected to a connecting water pipe 435. The connecting water pipe 435 is a metal pipe used to transport supersaturated dissolved air water. Four fixing blocks 436 are fixedly connected to the outside of the connecting water pipe 435. The four fixing blocks 436 are evenly distributed on the outside of the connecting water pipe 435 to fix the connecting water pipe 435 to the installation frame 1. A pressurized water pump 437 is fixedly connected to the end of the connecting water pipe 435. The pressurized water pump 437 can increase the delivery pressure of the dissolved air water to ensure stable delivery of the dissolved air water. The output end of the pressurized water pump 437 is fixedly connected to a release pipe 438. The release pipe 438 is a porous metal pipe that can evenly release the dissolved air water into the air flotation separation tank 241. A one-way valve 439 is installed inside the release pipe 438 to prevent the sewage in the air flotation separation tank 241 from flowing back into the dissolved air delivery pipeline.

[0032] Specifically, in the dissolved gas release component 43, the arc-shaped flow limiting plate 431 prevents the diffusion of scum, the filter tank 432 filters the scum and water, the L-shaped water pipe 433 guides water to the horizontal dissolved gas tank 434 to produce dissolved gas water; the fixing block 436 stably connects the water pipe 435, the pressurized water pump 437 ensures the stable delivery of dissolved gas water, the release pipe 438 evenly releases the dissolved gas water, and the one-way valve 439 prevents sewage backflow, thereby improving the dissolved gas efficiency and delivery stability.

[0033] Working principle: Wastewater to be treated is simultaneously introduced through the double inlet pipes 23 at the top of the connecting block 22 on the left side of the pretreatment component 21 of the reaction tank mechanism 2. The wastewater enters the water distribution trough 211 of the pretreatment component 21. Impurities in the wastewater settle along the inner wall of the water distribution trough 211 under gravity to the four funnel-shaped sludge collection hoppers 212 at the bottom. The operator discharges sludge periodically by controlling the bottom sludge discharge valve 213. The inclined plate 214 on the right side of the water distribution trough 211 causes the wastewater to flow gently and obliquely into the separation component 24. In the dissolved gas release stage, the horizontal dissolved gas tank 434 of the dissolved gas release component 43 in the sludge discharge mechanism 4 is fixed to the right side of the air flotation separation tank 241. Air is injected through an external air supply system and circulated. Wastewater treated by the scraper assembly 42 is introduced into the pipeline. The gas-water mixture system is pressurized in the tank, so that the air is fully dissolved in molecular form to form supersaturated dissolved air water. The connecting water pipe 435 connected to the output end of the horizontal dissolved air tank 434 is fixed to the installation frame 1 by means of four external fixing blocks 436. The end pressurizing water pump 437 increases the delivery pressure of the dissolved air water and delivers it stably to the release pipe 438. One end of the release pipe 438 extends to a designated area inside the air flotation separation tank 241. A built-in one-way valve 439 prevents wastewater backflow. After the supersaturated dissolved air water enters the air flotation separation tank 241, it quickly releases microbubbles with uniform particle size and dense distribution, which can quickly contact suspended impurities and colloidal particles in the wastewater.

[0034] The pretreated wastewater flows smoothly into the air flotation separator 241, where it mixes thoroughly with microbubbles to form an air-particle complex with a density much lower than water. Under buoyancy, this complex rises to the surface, forming a scum layer. Some impurities that did not effectively adsorb the bubbles and have a density greater than that of clean water slowly sink with the water flow, settling into the eight conical hoppers 242 at the bottom of the air flotation separator 241. Operators periodically remove the scum by controlling the bottom opening and closing valves 243. The guide plate 244 guides the scum layer to diffuse towards the scum removal mechanism 4 on the right side of the air flotation separator 241. During scum removal, the motor 421 of the scraper assembly 42 is fixed to the top rear side of the fixing plate 41. The left side of the fixing plate 41 is connected to the air flotation separator 241, and the bottom is reinforced by two tripods 44. When the scum layer reaches a set thickness, the motor 421... 21. Start-up: Drive the active pulley 422 to rotate, which in turn drives the driven pulley 424 and the rotating column 425 to rotate synchronously via the connecting belt 423. Three evenly distributed scrapers 426 on the outside of the rotating column 425 move close to the liquid surface, efficiently scraping off the scum and pushing it to the scum storage tank 427. The scum storage tank 427 is connected to the filter tank 432 on the right side, where the scum accumulates. The treated water enters the horizontal dissolved air tank 434 through the L-shaped water pipe 433. At the same time, the water flows back to the air flotation separation tank 241 through the filter tank 432. The scum after preliminary dewatering gathers in the scum storage tank 427 and is periodically discharged by the operator through the bottom scum discharge port. Finally, the clear water at the bottom of the air flotation separation tank 241 removes most of the suspended impurities, significantly improving the water quality and completing the purification process.

[0035] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A high-efficiency air flotation machine for water treatment, comprising a mounting frame (1), characterized in that: The inner side of the mounting frame (1) is fixedly connected to the reaction tank mechanism (2), the bottom of the reaction tank mechanism (2) is fixedly connected to multiple support columns (3), and the right side of the reaction tank mechanism (2) is fixedly connected to the slag discharge mechanism (4). The reaction tank mechanism (2) includes a pretreatment component (21), which is externally fixedly connected to the inner side of the mounting frame (1). A connecting block (22) is fixedly connected to the left side of the pretreatment component (21), and two water inlet pipes (23) are fixedly connected to the top of the connecting block (22). A separation component (24) is fixedly connected to the right side of the pretreatment component (21).

2. The high-efficiency air flotation machine for water treatment according to claim 1, characterized in that: The pretreatment component (21) includes a water distribution trough (211), the outside of which is fixedly connected to the inside of the mounting frame (1), and four slag collection hoppers (212) are fixedly connected to the bottom of the water distribution trough (211). A sludge discharge valve (213) is fixedly connected to the bottom of the slag collection hoppers (212). An inclined plate (214) is fixedly connected to the right side inside the water distribution trough (211).

3. The high-efficiency air flotation machine for water treatment according to claim 2, characterized in that: The separation assembly (24) includes an air flotation separation tank (241), the left side of which is fixedly connected to the right side of the water distribution tank (211), the top of which is fixedly connected to eight conical buckets (242), the bottom of which is fixedly connected to an opening and closing valve (243), and the inside right side of which is fixedly connected to a guide plate (244).

4. The high-efficiency air flotation machine for water treatment according to claim 3, characterized in that: The slag discharge mechanism (4) includes a fixed plate (41), the left side of which is fixedly connected to the right side of the air flotation separation tank (241), two tripods (44) are fixedly connected to the bottom of the fixed plate (41), the left side of the two tripods (44) is fixedly connected to the right side of the air flotation separation tank (241), a slag scraping assembly (42) is fixedly connected to the top of the fixed plate (41), and a dissolved gas release assembly (43) is fixedly connected to the right side of the slag scraping assembly (42).

5. A high-efficiency air flotation machine for water treatment according to claim 4, characterized in that: The slag scraping assembly (42) includes a motor (421), the bottom of which is fixedly connected to the top rear side of the fixed plate (41). The drive end of the motor (421) is fixedly connected to a drive pulley (422), and a connecting belt (423) is sleeved on the outside of the drive pulley (422). A slag storage tank (427) is fixedly connected to the right side of the fixed plate (41), and a rotating column (425) is rotatably connected to the top of the inner side of the slag storage tank (427).

6. A high-efficiency dissolved air flotation machine for water treatment according to claim 5, characterized in that: A driven pulley (424) is fixedly connected to the rear side of the rotating column (425). The driven pulley (424) is sleeved on the inner side of the connecting belt (423). Three scrapers (426) are fixedly connected to the outside of the rotating column (425).

7. A high-efficiency air flotation machine for water treatment according to claim 6, characterized in that: The dissolved gas release component (43) includes an arc-shaped flow restrictor (431). The bottom of the arc-shaped flow restrictor (431) is fixedly connected to the top right side of the slag storage tank (427). A filter tank (432) is fixedly connected to the right side of the slag storage tank (427). Two L-shaped water pipes (433) are fixedly connected to the bottom of the filter tank (432). A horizontal dissolved gas tank (434) is fixedly connected to the end of the two L-shaped water pipes (433). The left side of the horizontal dissolved gas tank (434) is fixedly connected to the right side of the air flotation separator (241).

8. A high-efficiency air flotation machine for water treatment according to claim 7, characterized in that: The output end of the horizontal dissolved air tank (434) is fixedly connected to a connecting water pipe (435), and four fixing blocks (436) are fixedly connected to the outside of the connecting water pipe (435). A pressurized water pump (437) is fixedly connected to the end of the connecting water pipe (435), and a release pipe (438) is fixedly connected to the output end of the pressurized water pump (437). A one-way valve (439) is installed inside the release pipe (438).

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