Air floatation equipment with oil-water separation structure

Abstract

The utility model relates to air flotation equipment with an oil-water separation structure, the air flotation equipment comprises an air flotation equipment main body, an oil scraping plate and a collecting device, an oil-water mixture is arranged in the air flotation equipment main body, the scraping plate of the air flotation equipment main body circularly moves along the surface of the oil-water mixture to adhere oil residues, and the oil scraping plate is of a plate-shaped structure; the oil scraping plate is arranged at the edge position of the air flotation device body, the oil scraping plate extends into the air flotation device body and abuts against the moved scraping plate, the collecting device is arranged below the oil scraping plate to collect oil residues, and the oil scraping plate can effectively solve the problem of oil slick and oil residue treatment in existing air flotation equipment. Automatic separation and recovery of grease and self-cleaning of scum of the device are realized, so that the operation efficiency of the equipment is improved, the service life of the equipment is prolonged, and the manual maintenance cost is reduced.

Description

Technical Field

[0001] This application relates to the field of oil-water separation equipment technology, and in particular to an air flotation device with an oil-water separation structure. Background Technology

[0002] Air flotation (AF) is a highly efficient solid-liquid separation technology widely used in water treatment. It introduces a large number of microbubbles into the water, allowing these tiny bubbles to combine with and lift pollutant particles to the surface. These particles then form scum, which is carried to a scum tank by a scraper, thus achieving solid-liquid or oil-water separation. Compared to traditional sedimentation methods, AF has excellent separation efficiency, especially suitable for treating low-concentration, difficult-to-settle suspended solids and oils. While existing AF processes achieve high separation efficiency for oily wastewater, there are limitations in oil collection and sludge discharge. Oil, especially highly viscous grease, tends to adhere to the scraper. As the amount of oil adhered increases, it detaches from the surface and falls into the water. Due to its larger size and density, this scum may settle directly to the bottom of the AF unit or flow into the product water, affecting the quality of the produced water. Utility Model Content

[0003] To solve the problem of traditional scrapers adhering to oil residue and easily falling off, this utility model provides an air flotation device with an oil-water separation structure, including: an air flotation device body, an oil scraper, and a collection device;

[0004] The interior of the air flotation device contains an oil-water mixture, and the scraper of the air flotation device moves in a circular motion along the surface of the oil-water mixture to adhere oil residue.

[0005] The oil scraper is a plate-shaped structure, located at the edge of the main body of the air flotation device, and extends into the interior of the air flotation device body, abutting against the moving scraper.

[0006] The collection device is located below the oil scraper to collect oil residue.

[0007] In one possible implementation, the cross-section of the scraper blade has a U-shaped structure.

[0008] In one possible implementation, the scraper blade includes a first plate body, a second plate body, and a third plate body;

[0009] The first plate, the second plate, and the third plate are plate-shaped structures, and their edges are connected sequentially.

[0010] The first plate and the second plate are spaced apart by a first preset angle;

[0011] The second plate and the third plate are spaced apart by a second preset angle, and the third plate is fixed at the edge of the air flotation device body and abuts against the moving scraper.

[0012] One possible implementation also includes: a motor;

[0013] The motor is located at the edge of the main body of the air flotation device and is electrically connected to the main body of the air flotation device. It drives the scraper to move cyclically on the surface of the oil-water mixture. The oil scraper is located between the main body of the air flotation device and the motor.

[0014] The second plate is vertically positioned at the edge of the air flotation device body, separating the air flotation device body from the motor, and the length of the second plate matches the height of the motor.

[0015] In one possible implementation, the scraper blade is made of rubber or polytetrafluoroethylene.

[0016] In one possible implementation, the first plate and the second plate are spaced at an angle of 90 degrees, and the first plate extends toward the main body of the air flotation device.

[0017] In one possible implementation, the third plate is spaced from the second plate at an angle between 120 and 150 degrees, and the third plate extends toward the interior of the air flotation device body.

[0018] In one possible implementation, the collection device includes a collection bucket and a collection pipe;

[0019] The collection bucket is a hollow barrel-shaped container located outside the main body of the air flotation device.

[0020] One end of the collection pipe is connected to the collection bucket, and the other end is located below the second plate.

[0021] In one possible implementation, the inside of the collection tank is provided with an oil level mark and a water level mark, with the oil level mark located above the water level mark;

[0022] The collection pipe is connected to the collection tank at the position where the oil level scale line is located.

[0023] In one possible implementation, the collection device further includes a circulating flushing system;

[0024] The circulating flushing system includes flushing pipes and a flushing pump body;

[0025] One end of the flushing pipe is connected to the collection bucket via the flushing pump body, and the other end is located on the third plate.

[0026] The beneficial effects of the flotation equipment with an oil-water separation structure in this application embodiment are as follows: The oil scraper effectively solves the problem of handling floating oil and oil sludge in existing flotation equipment, realizing automatic separation and recovery of grease and self-cleaning of floating sludge, thereby improving the operating efficiency of the equipment, extending the service life of the equipment, and reducing manual maintenance costs. Specifically, when the scraper moves on the oil-water mixture, the plate surface abuts against the end of the oil scraper, removing the oil sludge adhering to the scraper.

[0027] Other features and aspects of this application will become clear from the following detailed description of exemplary embodiments with reference to the accompanying drawings. Attached Figure Description

[0028] The accompanying drawings, which are included in and form part of this specification, illustrate exemplary embodiments, features, and aspects of this application together with the specification and serve to explain the principles of this application.

[0029] Figure 1 This is a partially enlarged schematic diagram of an air flotation device with an oil-water separation structure according to an embodiment of this application;

[0030] Figure 2 A schematic diagram of the scraper blade according to an embodiment of this application is shown. Detailed Implementation

[0031] Various exemplary embodiments, features, and aspects of this application will now be described in detail with reference to the accompanying drawings. The same reference numerals in the drawings denote elements that have the same or similar functions. Although various aspects of the embodiments are shown in the drawings, they are not necessarily drawn to scale unless specifically indicated otherwise.

[0032] It should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model or 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.

[0033] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0034] The term “exemplary” as used herein means “serving as an example, embodiment, or illustration.” Any embodiment illustrated herein as “exemplary” is not necessarily to be construed as superior to or better than other embodiments.

[0035] Furthermore, to better illustrate this application, numerous specific details are provided in the following detailed embodiments. Those skilled in the art should understand that this application can be implemented without certain specific details. In some instances, methods, means, components, and circuits well-known to those skilled in the art have not been described in detail in order to highlight the main points of this application.

[0036] like Figure 1 As shown, the air flotation device with an oil-water separation structure according to an embodiment of this application includes: an air flotation device body 100, an oil scraper 200, and a collection device. The air flotation device body 100 contains an oil-water mixture, and the scraper 110 of the air flotation device body 100 moves cyclically along the surface of the oil-water mixture to adhere oil residue. The oil scraper 200 has a plate-like structure and is located at the edge of the air flotation device body 100. The oil scraper 200 extends into the interior of the air flotation device body and abuts against the moving scraper 110. The collection device is located below the oil scraper 200 to collect oil residue.

[0037] In this embodiment, the oil scraper 200 effectively solves the problem of handling floating oil and oil sludge in existing air flotation equipment, realizing automatic separation and recovery of grease and self-cleaning of floating sludge, thereby improving the operating efficiency of the equipment, extending its service life, and reducing manual maintenance costs. Specifically, when the scraper 110 moves on the oil-water mixture, its surface abuts against the end of the oil scraper 200, removing the oil sludge adhering to the scraper 110.

[0038] In one specific embodiment, the cross-section of the oil scraper 200 is U-shaped. The U-shaped oil scraper 200 can better accommodate and guide the scraped oil residue, preventing it from scattering. Specifically, the U-shaped oil scraper 200 faces the main body of the flotation device, reducing oil splashing and scattering, guiding the oil residue to the collection device, and further improving the working performance of the oil-water separation equipment.

[0039] Furthermore, in this specific embodiment, the oil scraper 200 includes a first plate 210, a second plate 220, and a third plate 230. The first plate 210, the second plate 220, and the third plate 230 are plate-shaped structures, and their edges are connected sequentially. The first plate 210 and the second plate 220 are spaced apart by a first preset angle, and the second plate 220 and the third plate 230 are spaced apart by a second preset angle. The third plate 230 is fixed at the edge of the air flotation device body 100 and abuts against the moving scraper 110. The first plate 210, the second plate 220, and the third plate 230 form a U-shaped oil scraper 200. The third plate 230 is used to abut against the moving scraper 110 to scrape off the oil residue adhering to the scraper 110. The second plate 220 is set vertically, and the first plate 210 is set horizontally, forming a cover to prevent oil residue from splashing.

[0040] In one specific embodiment, the device further includes a motor 120, which is located at the edge of the main body 100 of the flotation equipment and is electrically connected to the main body 100. The motor 120 drives the scraper 110 to circulate on the surface of the oil-water mixture. An oil scraper 200 is disposed between the main body 100 and the motor 120. The motor 120 provides power for the circulatory movement of the scraper 110, ensuring that the scraper 110 can continuously move on the surface of the oil-water mixture, promptly carrying away the floating oil sludge. The oil scraper 200, disposed between the main body 100 and the motor 120, facilitates the scraping of oil sludge from the scraper 110 and also makes efficient use of the internal space of the equipment.

[0041] Furthermore, in this specific embodiment, the second plate 220 is vertically positioned at the edge of the air flotation device body 100, separating the air flotation device body 100 and the motor 120, and the length of the second plate 220 matches the height of the motor 120. The vertical arrangement of the second plate 220, with its surface located between the air flotation device body and the motor 120 support, prevents the oil residue from being splashed onto the motor 120 or the exterior of the air flotation device body when the third plate 230 removes oil residue from the scraper 110.

[0042] In one specific embodiment, the scraper blade 200 is made of rubber or polytetrafluoroethylene.

[0043] In one specific embodiment, the first plate 210 and the second plate 220 are spaced at an angle of 90 degrees, and the first plate 210 extends toward the main body 100 of the air flotation device. The first plate 210 can better receive the oil sludge scraped off from the scraper 110, avoid the splashing of oil sludge, and guide the oil sludge toward the direction of the second plate 220. While preventing the splashing of oil sludge, it further reduces the scattering of oil sludge in the device.

[0044] In one specific embodiment, the angle between the third plate 230 and the second plate 220 is within the range of 120-150 degrees, and the third plate 230 extends toward the interior of the air flotation device body 100, reducing the probability of grease adhering to the scraper plate 200. Compared with the second plate 220, the angled third plate 230 can better fit the surface of the scraper plate 110, improving the oil scraping effect, and also facilitating the guidance of the scraped oil residue to the collection device, thereby improving the oil-water separation efficiency of the equipment.

[0045] In one specific embodiment, the collection device includes a collection bucket 300 and a collection pipe 310. The collection bucket 300 is a hollow, barrel-shaped structure located outside the main body of the air flotation device. One end of the collection pipe 310 is connected to the collection bucket 300, and the other end is located below the second plate 220. Specifically, the collection bucket 300 is used to collect grease and its accompanying moisture. One end of the collection pipe 310 is located below the position where the third plate 230 can abut against the scraper 110. When the third plate 230 removes the grease from the scraper 110, the grease falls towards the opening of the collection pipe below, thus completing the collection of oil residue.

[0046] In one specific embodiment, the collection tank 300 is provided with an oil level mark and a water level mark inside, with the oil level mark located above the water level mark. The collection pipe 310 is connected to the collection tank 300 at the location where the oil level mark is located, which facilitates the management and treatment of the collected oil and water, and improves the practicality and ease of operation of the oil-water separation equipment.

[0047] In one specific embodiment, the collection device further includes a circulating flushing system, which includes a flushing pipe 420 and a flushing pump 410. One end of the flushing pipe 420 is connected to the collection tank 300 via the flushing pump 410, and the other end is disposed on the third plate 230. The circulating flushing system utilizes the water separated in the collection tank 300, pressurized by the flushing pump 410, and sprayed out from the outlet on the third plate 230 through the flushing pipe 420 to flush the oil scraper 200 and the surrounding area. This achieves automatic flushing of the oil scraper 200, reduces oil residue on the oil scraper 200, avoids secondary pollution and equipment blockage caused by oil residue, reduces the frequency of manual cleaning, and improves the operating efficiency and service life of the equipment.

[0048] In one specific embodiment, the third plate 230 faces downward and a fourth plate 240 extends therefrom, with the surface of the third plate 230 parallel to the surface of the second plate 220. When the scraper 200 removes oil residue from the scraper 110, the extended fourth plate 240 preferentially contacts the scraper 110 to remove the oil residue adhering to the scraper 110.

[0049] In one specific embodiment, the motor 120 drives multiple scrapers 110 to move via a conveyor belt, and the conveyor belt can be connected to the scraper 110 via both ends of the scraper 200 through a device for setting the scrapers 110.

[0050] The various embodiments of this application have been described above. These descriptions are exemplary and not exhaustive, nor are they limited to the disclosed embodiments. Many modifications and variations will be apparent to those skilled in the art without departing from the scope and spirit of the described embodiments. The terminology used herein is chosen to best explain the principles, practical application, or improvement of the technology in the market, or to enable others skilled in the art to understand the embodiments disclosed herein.

Claims

1. An air floatation apparatus having an oil-water separation structure, characterized by comprising: The utility model relates to a gas float equipment, which comprises a gas float equipment body, a scraping plate and a collecting device. The gas float equipment body is internally provided with an oil-water mixture, and the scraping plate of the gas float equipment body moves along the surface of the oil-water mixture to adhere to oil residues. The scraping plate is a plate structure, which is arranged at the edge of the gas float equipment body and extends into the interior of the gas float equipment body to abut against the moving scraping plate. The collecting device is arranged below the scraping plate to collect oil residues. The cross section of the scraping plate is in a concave shape.

2. The air floatation apparatus having an oil-water separation structure according to claim 1, characterized by, The scraping plate comprises a first plate body, a second plate body and a third plate body.

3. The air floatation apparatus having an oil-water separation structure according to claim 2, characterized by, The first plate body, the second plate body and the third plate body are plate structures, and the edges of the first plate body, the second plate body and the third plate body are sequentially connected. The first plate body and the second plate body are spaced apart by a first preset angle. The second plate body and the third plate body are spaced apart by a second preset angle, and the third plate body is fixed at the edge of the gas float equipment body to abut against the moving scraping plate. The utility model further comprises an electric motor.

4. The air floatation apparatus having an oil-water separation structure according to claim 3, characterized by, The electric motor is arranged at the edge of the gas float equipment body and is electrically connected to the gas float equipment body to drive the scraping plate to move on the surface of the oil-water mixture. The second plate body is vertically arranged at the edge of the gas float equipment body to separate the gas float equipment body and the electric motor, and the length of the second plate body matches the height of the electric motor. The scraping plate is made of rubber or polytetrafluoroethylene. The first plate body and the second plate body are spaced apart by an angle of 90 degrees, and the first plate body extends towards the gas float equipment body.

5. The air floatation apparatus having an oil-water separation structure according to claim 4, characterized by, The third plate body and the second plate body are spaced apart by an angle in the range of 120-150 degrees, and the third plate body extends towards the interior of the gas float equipment body.

6. The air floatation apparatus having an oil-water separation structure according to claim 5, characterized by, The collecting device comprises a collecting barrel and a collecting pipeline.

7. The air floatation apparatus having an oil-water separation structure according to claim 5, characterized by, The collecting barrel is a hollow barrel arranged outside the gas float equipment body.

8. The air floatation apparatus having an oil-water separation structure according to claim 7, characterized by, One end of the collecting pipeline is connected to the collecting barrel, and the other end is arranged below the second plate body. The interior of the collecting barrel is provided with an oil level scale and a water level scale, and the oil level scale is above the water level scale. The collecting pipeline and the collecting barrel are in communication at the position provided with the oil level scale.

9. The air floatation apparatus having an oil-water separation structure according to claim 8, characterized by, The collecting device further comprises a circulating flushing system. The circulating flushing system comprises a flushing pipeline and a flushing pump body.

10. The air floatation apparatus having an oil-water separation structure according to claim 9, characterized by, One end of the flushing pipeline is connected to the collecting barrel through the flushing pump body, and the other end is arranged on the third plate body. ​ ​

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