An integrated dissolved air flotation device

Abstract

The utility model relates to dissolved air flotation device technical field, specifically disclose an integrated dissolved air flotation device, include: combination type dissolved air flotation device body, the upside of combination type dissolved air flotation device body is provided with transmission assembly, and the outside of transmission assembly is provided with the dirty scraping board, still include: the inside of combination type dissolved air flotation device body is provided with the collection mechanism for the convenient collection of suspended solids, the top of combination type dissolved air flotation device body is provided with the moving mechanism for cleaning dirty scraping board. The integrated dissolved air flotation device, through the collection groove of dirty scraping board scraping of suspended solids, the filter plate carries out the filtration to the suspended solids, avoids the fine particle with the reflux water flow and enters combination type dissolved air flotation device body again, promotes the collection thoroughness, the drive motor drives the screw rod rotation, makes the connecting plate along the limit rod and moves, and the sponge block slides along with the connecting plate and sticks to the dirty scraping board, realizes the cleaning, simple structure, and maintenance is convenient.

Description

Technical Field

[0001] This utility model relates to the technical field of dissolved air flotation devices, specifically an integrated dissolved air flotation device. Background Technology

[0002] Integrated dissolved air flotation (DAF) devices are highly efficient environmental protection equipment for solid-liquid / liquid-liquid separation. They remove pollutants through pressure regulation and microbubble adsorption technology, and are widely used in municipal, chemical, papermaking, and food industries. DAF is a physical technology that uses pressure regulation to change the solubility of gases in water, forming microbubbles to achieve solid-liquid or liquid-liquid separation. Its core lies in dissolving air under high pressure and then suddenly depressurizing to release microbubbles, causing suspended solids to combine with the bubbles and float to the surface for separation.

[0003] For example, Chinese patent CN217676895U discloses a combined dissolved air flotation device. This utility model uses a positioning adjustment mechanism and a clamping plate to work with a lifting plate and a scraper to scrape and clean the surface of the scraper plate. This solves the problem that existing combined dissolved air flotation devices cannot effectively remove suspended particles from the surface of the scraper plate during the operation of the skimmer. Because the suspended particles are small and contain air bubbles, a large number of suspended particles easily adhere to the surface during the operation of the skimmer plate, causing the suspended particles to re-enter the water being treated, thus reducing the skimming and treatment effects of the combined dissolved air flotation device. This invention has the advantage of good skimming effect.

[0004] However, while existing combined dissolved air flotation devices can remove suspended particles from water during use, they are inconvenient to collect. In addition, the numerous components used for cleaning the scraper surface make maintenance difficult, so there is still room for improvement.

[0005] Therefore, we propose an integrated dissolved air flotation device to address the problems mentioned above. Utility Model Content

[0006] The purpose of this invention is to provide an integrated dissolved air flotation device to solve the problems mentioned in the background art. In the process of using the existing combined dissolved air flotation device, although it can remove suspended particles from the water, it is inconvenient to collect the suspended particles. In addition, when cleaning the scraper surface, there are many parts used, which is inconvenient to maintain. Therefore, there is still room for further improvement.

[0007] To achieve the above objectives, this utility model provides the following technical solution: an integrated dissolved air flotation device, comprising: The main body of the combined dissolved air flotation device has a transmission component on its upper side, and a scraper is provided on the outer side of the transmission component, and the scraper is arranged in an array. Also includes: The combined dissolved air flotation device body is provided with a collection mechanism for convenient collection of suspended solids, and a collection trough is engaged and connected to the left side of the combined dissolved air flotation device body, and the outer side of the collection trough is tightly fitted to the inner side of the combined dissolved air flotation device body. The combined dissolved air flotation device has a moving mechanism for cleaning the scraper plate on its upper part, and a support plate is provided on the upper side of the combined dissolved air flotation device, with the support plate located to the right of the transmission assembly.

[0008] Preferably, the collection mechanism is composed of a limiting block, a filter plate and a pull rod. The limiting block is disposed inside the collection tank, and the upper side of the limiting block is in close contact with the filter plate. The upper side of the filter plate is provided with a pull rod, and the side of the filter plate is in close contact with the inner side of the collection tank.

[0009] Preferably, the lower side of the collection tank is fixedly connected to one end of the suction pipe, and the other end of the suction pipe is fixedly connected to the input end of the water pump, and the output end of the water pump is fixedly connected to the return pipe, and the lower side of the return pipe is located inside the body of the combined dissolved air flotation device.

[0010] Preferably, the upper side of the support plate is provided with a limiting groove, and the limiting groove is symmetrical about the vertical central axis of the support plate, and a movable plate is slidably connected to the inner side of the limiting groove.

[0011] Preferably, the right side of the movable plate is fixedly connected to the output end of the electric telescopic rod, and the right side of the electric telescopic rod is fixedly connected to the support plate through a vertical plate.

[0012] Preferably, the moving mechanism is composed of a lead screw, a connecting plate, and a limiting rod. The lead screw is rotatably connected to the moving plate and fixedly connected to the output shaft of the drive motor. The lead screw is threadedly driven to the connecting plate, and the connecting plate is slidably connected to the limiting rod.

[0013] Preferably, the drive motor is located on the front side of the moving plate, and the limiting rod is fixedly connected to the moving plate.

[0014] Preferably, the connecting plate is fixedly connected to the connecting block, and a sponge block is engaged inside the connecting block, and the sponge block is tightly fitted to the scraper.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows: This integrated dissolved air flotation device collects the suspended matter scraped off by the scraper in the collection tank, and filters the suspended matter with the filter plate, preventing fine particles from re-entering the combined dissolved air flotation device body with the return water flow, thus improving the thoroughness of collection; the drive motor drives the lead screw to rotate, causing the connecting plate to move along the limit rod, and the sponge block slides along the connecting plate against the scraper to achieve cleaning. The structure is simple and maintenance is convenient. 1. It is equipped with a scraper, a collection tank and a filter plate. The collection tank collects the suspended solids scraped off by the scraper, and the filter plate filters the suspended solids to prevent fine particles from re-entering the combined dissolved air flotation device with the return water flow, thus improving the thoroughness of collection. 2. It is equipped with a suction pipe, a water pump and a return pipe. The water pump draws the supernatant in the collection tank through the suction pipe and then sends it back to the main body of the combined dissolved air flotation device for recycling through the return pipe, which saves water resources and reduces treatment costs. 3. It is equipped with a moving mechanism, a lead screw and a sponge block. The drive motor drives the lead screw to rotate, so that the connecting plate moves along the limit rod. The sponge block slides with the connecting plate against the scraper to achieve cleaning. The structure is simple and easy to maintain. 4. It is equipped with an electric telescopic rod, a movable plate and a limiting groove. The electric telescopic rod pushes the movable plate to slide along the limiting groove, thereby driving the overall position adjustment of the moving mechanism to ensure that the sponge block can thoroughly clean the array of scraper plates. 5. It is equipped with a pull rod, a limit block, and a connecting block. The pull rod makes it easy to remove the filter plate for cleaning or replacement, the limit block ensures that the filter plate is installed stably, and the connecting block locks and fixes the sponge block, making it easy to disassemble and replace the sponge block. Attached Figure Description

[0016] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings: Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the connection structure between the sponge block and the scraper of this utility model; Figure 3 This utility model Figure 2 Enlarged structural diagram at point A in the middle; Figure 4 This is a cross-sectional view of the collection trough structure of this utility model; Figure 5 This is a cross-sectional structural diagram of the combined dissolved air flotation device of this utility model; Figure 6 This is a schematic diagram of the exploded structure of the connecting block and the sponge block of this utility model.

[0017] In the diagram: 1. Main body of the combined dissolved air flotation device; 2. Transmission assembly; 3. Scraper; 4. Collection tank; 5. Limiting block; 6. Filter plate; 7. Tie rod; 8. Suction pipe; 9. Water pump; 10. Return pipe; 11. Support plate; 12. Limiting groove; 13. Moving plate; 14. Electric telescopic rod; 15. Drive motor; 16. Lead screw; 17. Connecting plate; 18. Limiting rod; 19. Connecting block; 20. Sponge block. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model, so that the implementation process of how the present application uses technical means to solve technical problems and achieve technical effects can be fully understood and implemented accordingly. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0019] Please see Figures 1-6 This utility model provides a technical solution: an integrated dissolved air flotation device, comprising: a combined dissolved air flotation device body 1, a transmission assembly 2, a scraper 3, a collection tank 4, a limiting block 5, a filter plate 6, a pull rod 7, a suction pipe 8, a water pump 9, a return pipe 10, a support plate 11, a limiting groove 12, a moving plate 13, an electric telescopic rod 14, a drive motor 15, a lead screw 16, a connecting plate 17, a limiting rod 18, a connecting block 19, and a sponge block 20.

[0020] While existing combined dissolved air flotation devices can remove suspended particles from water during use, they are inconvenient to collect. In addition, the numerous components used for cleaning the scraper surface make maintenance difficult, thus leaving room for further improvement.

[0021] When using integrated dissolved air flotation devices, such as Figure 1 , Figure 2 , Figure 4 and Figure 5 As shown, during solid-liquid separation, the dissolved air system of the combined dissolved air flotation device body 1 is first activated. High-pressure air dissolves inside the combined dissolved air flotation device body 1 and is then suddenly depressurized, releasing a large number of microbubbles. These microbubbles combine with suspended solids in the wastewater within the combined dissolved air flotation device body 1 to form flotation flocs with a density less than water, which float to the water surface with the bubbles. The combined dissolved air flotation device body 1 is existing technology and will not be described in detail. At this time, the transmission component 2 is activated, driving the outer array of scraper blades 3 to rotate. The scraper blades 3 scrape the suspended solids from the water surface towards the collection tank 4 on the left side inside the combined dissolved air flotation device body 1. The collection tank 4 is connected to the combined dissolved air flotation device body 1, with its outer side tightly fitted to the inner side of the combined dissolved air flotation device body 1, ensuring that the suspended solids completely fall into the collection tank 4 and preventing leakage.

[0022] like Figure 4 and Figure 5 As shown, after suspended solids fall into the collection tank 4, the liquid inside permeates downwards through the filter plate 6. The filter plate 6 is fixed in the collection tank 4 by the limiting block 5, which can prevent fine particles in the suspended solids from permeating with the liquid. The water pump 9 is started, and the water pump 9 draws the filtered supernatant from the collection tank 4 through the suction pipe 8, and then sends the supernatant back to the main body 1 of the combined dissolved air flotation device through the return pipe 10, realizing water resource recycling and reducing treatment costs. When a large amount of suspended solids accumulates in the collection tank 4, after cleaning the suspended solids, the pull rod 7 is pulled upwards to remove the filter plate 6 from the collection tank 4, allowing for cleaning of the suspended solids on the surface of the filter plate 6, or direct replacement of the filter plate 6, making the operation convenient. In addition, the suction pipe 8 is a flexible hose, allowing the collection tank 4 to be removed from the main body 1 of the combined dissolved air flotation device for easy cleaning and preventing suspended solids from entering the water pump 9.

[0023] like Figure 1 , Figure 2 , Figure 3 and Figure 6 As shown, when suspended matter adheres to the surface of the scraper blade 3 after long-term use, affecting its scraping effect, the moving mechanism is activated for cleaning. First, the electric telescopic rod 14 is activated. The electric telescopic rod 14 is fixed to the support plate 11 via a vertical plate. Its output end pushes the moving plate 13 to slide along the limiting groove 12 on the upper side of the support plate 11. The front and rear positions of the moving plate 13 are adjusted so that the sponge block 20 of the moving mechanism is aligned with the scraper blade 3 to be cleaned. Then, the drive motor 15 is activated. The drive motor 15 is located in front of the moving plate 13. Its output shaft drives the lead screw 16 to rotate. The lead screw 16 is threadedly driven to the connecting plate 17, and the connecting plate 17 is slidably connected to the limiting rod 18. The two ends of the limiting rod 18 are fixed to the moving plate 13, which serves as a guide. Therefore, when the lead screw 16 rotates, the connecting plate 17 moves horizontally along the limiting rod 18. The connecting block 19, fixed to the lower side of the connecting plate 17, moves synchronously with the connecting plate 17. The sponge block 20, which is engaged inside the connecting block 19, fits tightly against the scraper 3, wiping away suspended particles on the surface of the scraper 3 during the movement. After cleaning, the drive motor 15 reverses to reset the connecting plate 17, and the electric telescopic rod 14 retracts to return the moving plate 13 to its initial position. If the sponge block 20 needs to be replaced, it can be directly removed from the connecting block 19 without disassembling other parts, making maintenance easy.

[0024] It should be noted that this integrated dissolved air flotation device achieves a high degree of integration of core operational processes through compact structural design, modular functional integration, and closed-loop process connection.

[0025] All standard parts used in this utility model can be purchased from the market, and irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art, and the circuit connection adopts conventional connection methods in the prior art, which will not be described in detail here.

[0026] Although the present invention 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 invention should be included within the protection scope of the present invention.

Claims

1. An integrated dissolved air flotation device, comprising: The combined dissolved air flotation device body (1) has a transmission component (2) on its upper side, and a scraper (3) is provided on the outer side of the transmission component (2), and the scraper (3) is arranged in an array. Its characteristic is that it further includes: The combined dissolved air flotation device body (1) is provided with a collection mechanism for convenient collection of suspended matter, and a collection trough (4) is engaged and connected to the left side of the combined dissolved air flotation device body (1), and the outer side of the collection trough (4) is closely fitted to the inner side of the combined dissolved air flotation device body (1). The combined dissolved air flotation device body (1) is provided with a moving mechanism for cleaning the scraper (3) above it, and a support plate (11) is provided on the upper side of the combined dissolved air flotation device body (1), and the support plate (11) is located to the right of the transmission assembly (2).

2. The integrated dissolved air flotation device according to claim 1, characterized in that: The collection mechanism is composed of a limiting block (5), a filter plate (6) and a pull rod (7). The limiting block (5) is located inside the collection groove (4), and the upper side of the limiting block (5) is in close contact with the filter plate (6). The upper side of the filter plate (6) is provided with a pull rod (7), and the side of the filter plate (6) is in close contact with the inner side of the collection groove (4).

3. The integrated dissolved air flotation device according to claim 2, characterized in that: The lower side of the collection tank (4) is fixedly connected to one end of the suction pipe (8), and the other end of the suction pipe (8) is fixedly connected to the input end of the water pump (9). The output end of the water pump (9) is fixedly connected to the return pipe (10), and the lower side of the return pipe (10) is located inside the combined dissolved air flotation device body (1).

4. The integrated dissolved air flotation device according to claim 1, characterized in that: The upper side of the support plate (11) is provided with a limiting groove (12), and the limiting groove (12) is symmetrical about the vertical central axis of the support plate (11). A movable plate (13) is slidably connected to the inner side of the limiting groove (12).

5. An integrated dissolved air flotation device according to claim 4, characterized in that: The right side of the movable plate (13) is fixedly connected to the output end of the electric telescopic rod (14), and the right side of the electric telescopic rod (14) is fixedly connected to the support plate (11) through a vertical plate.

6. An integrated dissolved air flotation device according to claim 5, characterized in that: The moving mechanism is composed of a lead screw (16), a connecting plate (17) and a limiting rod (18). The lead screw (16) is rotatably connected to the moving plate (13), and the lead screw (16) is fixedly connected to the output shaft of the drive motor (15). The lead screw (16) is threadedly driven to the connecting plate (17), and the connecting plate (17) is slidably connected to the limiting rod (18).

7. An integrated dissolved air flotation device according to claim 6, characterized in that: The drive motor (15) is located on the front side of the moving plate (13), and the limiting rod (18) is fixedly connected to the moving plate (13).

8. An integrated dissolved air flotation device according to claim 6, characterized in that: The connecting plate (17) is fixedly connected to the connecting block (19), and the connecting block (19) is internally engaged with a sponge block (20), and the sponge block (20) is tightly fitted with the scraper (3).

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