Oil stain removal equipment of air floatation oil-water separator

Abstract

The invention discloses degreasing equipment of an air-floating oil-water separator. The degreasing equipment of the air-floating oil-water separator comprises a tank body, a tank cover, a cyclone and a bubble generator, a liquid collecting barrel is arranged in the tank body, and a guide plate which is spirally arranged inwards is arranged in the tank body; the guide plate is at least used for guiding the flowing direction of sewage; the flow guide part comprises a slag solidification part and an oil separation part; an oil scraping component is arranged on the tank cover corresponding to the oil separating part; the oil scraping assembly comprises a guide rail and a sliding assembly; the guide rail comprises an oil scraping part and a reset part, and the extension direction of the oil scraping part is collinear with the inner spiral line of the oil distribution part; the tank cover is correspondingly provided with a protruding block, the distance between the lower end and the higher end of the protruding block is 7-13 cm, the sliding assembly comprises an oil scraping plate, and the oil scraping plate can extend into an oil layer of the air floatation tank by at least 5 cm along with fluctuation of the protruding block. The degreasing equipment of the air-floating oil-water separator has the effect of improving the separation efficiency reduction caused by too long coexistence time of oil layers and water layers.

Description

Technical Field

[0001] The invention belongs to the technical field of air flotation oil removal, and more specifically relates to an air flotation oil-water separator oil removal device. Background Art

[0002] At present, in order to produce specific oil-containing organic wastewater, relevant technologies often use gravity oil removal, flotation oil removal, chemical oil removal and electrochemical oil removal to remove the oil component in the organic wastewater.

[0003] The air flotation oil-water separator is a device that uses air flotation technology to efficiently separate oil and water. It is widely used in the catering industry and industrial fields. Its working principle is to use tiny bubbles to adhere to suspended matter in the water (such as grease), and use the buoyancy of the bubbles to bring pollutants to the water surface for rapid separation. The air flotation oil-water separator plays an important role in sewage treatment with its efficient oil-water separation ability, automated operation and flexible design. It is an ideal choice for achieving environmental protection and resource recovery.

[0004] The releaser of the flotation oil-water separator is its key component, which is mainly used to generate micro bubbles. When the sewage passes through the reaction zone and the reagent is added, the small suspended particles gather into large particles. When the pressurized dissolved air water passes through the releaser, a large number of tiny bubbles with a diameter of about 20 to 30 microns will be formed. These bubbles attach to the suspended matter (such as oil) in the sewage during the floating process, and rely on buoyancy to bring them to the water surface to achieve solid-liquid separation. In the contact zone, they combine with the micro bubbles in the dissolved air water to form flocs with a specific gravity less than that of water. These flocs float to the water surface in the separation zone and become waste residue.

[0005] The density of the scum produced by the air flotation oil-water separator is usually less than 1. This is because during the treatment process, the suspended matter and grease in the sewage are combined with fine bubbles to form flocs. The overall density of these flocs is lower than the density of water (about 1g / cm³), so they can float to the water surface and be removed by a scraper or using cyclone centrifugal technology.

[0006] The inventors found in the prior art that after the suspended matter and grease in the sewage are combined with fine bubbles to form flocs, they are introduced to the discharge port along the guide plate provided in the air flotation oil-water separator through cyclone flow to achieve the cleaning of the sludge; when the waste residue is introduced to the end of the discharge port along the guide plate on the surface, the bubbles cannot penetrate the oil-water mixture near the discharge port, preventing the waste residue from being dispersed; the waste residue and sewage are stored near the discharge port for too long, and the gas gradually gathers, resulting in weakened buoyancy, which makes it easy for the oil and waste residue to reduce buoyancy, resulting in poor separation effect. Summary of the invention

[0007] One object of the present invention is to improve the separation efficiency which is reduced due to the coexistence of the oil layer and the water layer for too long.

[0008] In view of the shortcomings of the prior art, the present invention aims to provide an air-floating oil-water separator degreasing device, comprising a tank body, a tank cover, and a bubble generator; a liquid collecting barrel is arranged in the tank body, and the liquid collecting barrel and the tank body are arranged coaxially; a guide plate arranged inwardly in a spiral is arranged in the tank body; the guide plate is at least used to guide the flow direction of the dirty liquid; The flow guide portion includes a slag condensing portion and an oil separation portion; The tank cover is provided with an oil scraping assembly at a position corresponding to the oil separation portion; The oil scraping assembly comprises a guide track and a sliding assembly, and the sliding assembly moves unidirectionally and periodically along the guide track; the guide track comprises an oil scraping part and a reset part, and the extension direction of the oil scraping part is arranged on the same line as the inner spiral line of the oil separation part; The can cover is provided with a raised block, and the distance between the lower end and the upper end of the raised block is 7-13 cm The sliding assembly comprises an oil scraper, and the oil scraper can extend into the oil layer of the flotation tank by at least 5 cm as the protruding block rises and falls.

[0009] In order to achieve the above-mentioned invention object, the technical solution adopted by the present invention includes: Optionally, the sliding assembly further comprises a sliding block, a spring and an oil scraper block; a spring is arranged between the sliding block and the oil scraper block; the spring has a force to pull the oil scraper block toward the sliding block, and the oil scraper block is fixedly connected to the oil scraper plate.

[0010] Optionally, a positioning column is fixedly connected to the oil scraper block, one end of the positioning column is arranged on a universal wheel, and the universal wheel is at least used to abut against the tank cover.

[0011] Optionally, an overflow block is provided at the end of the liquid collecting barrel, and an overflow surface is opened on the overflow block. The overflow surface is inclined, and the higher end of the overflow surface is arranged on one side of the liquid collecting barrel. The overflow surface tends to be inclined downward toward the side away from the liquid collecting barrel, and the lower end of the overflow plate is preferably arranged 5 cm into the oil layer of the oil separation part.

[0012] Optionally, the protruding block comprises a rising portion, a parallel portion and a falling portion, and the rising portion, the parallel portion and the falling portion are connected to each other; The lifting part is arranged at the starting end of the scraping part and the ending end of the reset part, the parallel part of the protruding block is arranged in the scraping part of the guide track, and the descending part is arranged at the ending end of the scraping part and the starting end of the reset part.

[0013] Optionally, a cleaning plate is provided on one side of the oil scraper plate, and the cleaning plate can abut against the oil scraper plate.

[0014] Optionally, the oil scraping portion of the guide rail is arranged corresponding to the oil dividing portion of the guide portion.

[0015] Compared with the prior art, the advantages of the present invention include: (1) The present invention provides an air flotation oil-water separator oil removal equipment. By coupling cyclone oil removal and air flotation oil removal technology, the system achieves efficient removal of oil from oily wastewater. The cyclone design promotes oil-water separation, while the air flotation process further enhances the removal efficiency of oil droplets. This comprehensive method not only improves the oil removal efficiency, but also effectively reduces the footprint of the equipment, making it easier for personnel to manage and operate; (2) The air flotation oil-water separator degreasing equipment provided by the present invention can avoid the use of chemical reagents in the entire treatment process, avoiding the risk of secondary pollution, while also reducing corrosion to the treatment equipment and extending the service life of the equipment. This physical treatment method is more environmentally friendly and in line with the current green and sustainable development concept; (3) The present invention provides an air flotation oil-water separator degreasing device, which can use the high pressure of the pressure dissolving gas tank to pressurize the bubbles generated by the bubble generator and completely dissolve them into the sewage, ensuring that the bubbles and the sewage are fully mixed. In a low-pressure environment, the bubbles escape naturally to form a large number of bubbles with small diameters. These bubbles have a higher probability of adhering to oil droplets, thereby improving the degreasing effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 It is an overall schematic diagram of an air-floating oil-water separator oil removal device in the present invention; Figure 2 It is a schematic diagram of a protruding tank body of an air-floating oil-water separator oil removal device in the present invention; Figure 3 It is a cross-sectional view of the protruding tank body of an air-floating oil-water separator oil removal device in the present invention.

[0018] Figure 4 It is a schematic diagram of a protruding sliding component of an air-floating oil-water separator oil removal device in the present invention.

[0019] Figure 5 It is a schematic diagram of a protruding convex block of an air flotation oil-water separator oil removal device in the present invention.

[0020] Figure 6 It is a schematic diagram of a protruding oil scraper plate of an air-floating oil-water separator oil removal device in the present invention.

[0021] Figure 7 It is a schematic diagram of a protruding cleaning plate of an air flotation oil-water separator oil removal device in the present invention.

[0022] Figure 8 It is a schematic diagram of a protruding guide track of an air-floating oil-water separator oil removal device in the present invention.

[0023] Reference numerals: 1. Tank body; 11. Tank cover; 12. Drain pipe; 13. Drain pipe; 101. Sewage tank; 102. Pressure gas tank; 103. Bubble generator; 104. Air compressor; 2. Liquid collecting barrel; 3. Guide plate; 31. Slag condensation part; 32. Oil separation part; 41. Overflow port; 42. Overflow block; 43. Overflow surface; 5. Oil scraper assembly; 51. Guide rail; 52. Oil scraper part; 53. Reset part; 6. Sliding assembly; 61. Sliding block; 62. Oil scraper plate; 63. Spring; 64. Positioning column; 65. Oil scraper block; 66. Driving motor; 67. Universal wheel; 7. Raised block; 71. Lifting part; 72. Parallel part; 73. Dropping part; 74. Cleaning plate; In the drawings, the same components are denoted by the same reference numerals; the drawings are not drawn according to the actual scale. DETAILED DESCRIPTION

[0024] In view of the deficiencies in the prior art, the inventor of this case has proposed the technical solution of the present invention after long-term research and extensive practice. The following will further explain the technical solution, its implementation process and principle, etc. in conjunction with the drawings in the embodiments of this application and specific implementation cases.

[0025] It should be noted that the embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention. The described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments in the present invention, the present invention covers any substitution, modification, equivalent method and scheme made on the spirit, principle and scope of the present invention defined by the claims. All other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0026] In the description of the present application, "first", "second", "third" and similar words do not indicate any order, quantity or importance, but are only used to distinguish different components. Similarly, "one" or "an" and other similar words do not indicate a quantity limitation, but indicate the existence of at least one. "Include" or "comprise" and other similar words mean that the elements or objects appearing before "include" or "comprises" include the elements or objects listed after "include" or "comprises" and their equivalents, and do not exclude other elements or objects. "Connect" or "connected" and other similar words are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect.

[0027] In the description of the present application, the terms "center", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application. In addition, when positional terms such as both sides, outside, up and down are used, it should be understood that they are only used to facilitate understanding and description, considering that the structure may be facing other positions.

[0028] In the description of this application, unless otherwise clearly specified and limited, the technical or scientific terms used should have the usual meanings understood by persons with general skills in the field to which this application belongs. Terms such as "install", "connect", and "connect" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, a conflicting connection, or an integrated connection. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0029] The embodiments of the present invention are intended to introduce and illustrate the structural composition of the oil-water separator for air flotation and the coordination relationship between the various components. Unless otherwise specified, the size, material and manufacturing process of each component in the oil-water separator for air flotation in the embodiments of the present invention can be selected according to the specific situation and are not specifically limited or described herein.

[0030] Further, in order to make the public have a better understanding of the present invention, some specific details are described in detail in the following detailed description of the present invention. For those skilled in the art, the present invention can be fully understood without the description of these details.

[0031] Example 1 See also Figure 1-8As shown, an air-floating oil-water separator degreasing device comprises a tank body 1, the tank body 1 is open, a tank cover 11 is arranged on the tank body 1, the tank cover 11 is rotatably connected to the tank body 1, and when the tank body 1 is closed, the tank cover 11 is arranged coaxially with the tank body 1; See also Figure 1-8 As shown, a liquid collecting barrel 2 is provided in the tank body 1, and the height of the liquid collecting barrel 2 is lower than the height of the tank body 1; a guide plate 3 is provided in the tank body 1, and the guide plate 3 is spirally arranged inwardly, one end of the guide plate 3 is fixedly connected to the inner surface of the tank body 1, and the other end of the guide plate 3 is fixedly connected to the outer surface of the liquid collecting barrel 2, and the height of the guide plate 3 is the same as the height of the tank body 1.

[0032] See also Figure 1-8 As shown, a sewage tank 101 is provided on one side of the tank body 1, a filter screen is provided in the sewage tank 101, the discharge port of the sewage tank 101 is connected to the inlet 1 of the pressure dissolved gas tank 102, the bubble generator 103 is connected to the inlet 2 of the pressure dissolved gas tank 102, and the air compressor 104 is connected to the inlet 3 of the pressure dissolved gas tank 102; the outlet of the pressure dissolved gas tank 102 is connected to the tank body 1, wherein a drain pipe 12 is provided in the middle of the tank body 1, and a sewage pipe 13 is provided at the bottom of the tank body 1 Specifically, in actual use, the oily wastewater is stored in the wastewater tank 101, wherein in order to improve the filtering efficiency, the large-sized dirt is removed after the initial filtering and oil removal through the filter net.

[0033] The bubbles generated by the bubble generator 103 are transported to the pressure dissolved gas tank 102. Since the pressure dissolved gas tank 102 maintains a closed high-pressure environment, it is convenient for the bubbles to fully merge with the initially filtered sewage.

[0034] After being pressurized and dissolved by the air compressor 104, the sewage and the bubbles in the pressure dissolved gas tank 102 are fully mixed and then can be output from the pressure dissolved gas tank 102 and transported to the tank body 1. The air pressure in the tank body 1 is at normal pressure. After the pressure is reduced, the bubbles in the sewage are precipitated. The bubbles will absorb the oil droplets during the floating process, and then form a layer of oil bubble liquid film on the liquid surface.

[0035] At the same time, the deoiled sewage is concentrated in the middle of the tank body 1 and the output is controlled by opening the valve on the drain pipe 12; after the work is completed, the heavy phase material is discharged through the drain pipe 13 by opening the valve on the drain pipe 13 to clean the inside of the tank body 1.

[0036] See also Figure 1-8As shown, a slag condensation part 31 and an oil separation part 32 are formed in the spiral of the guide plate 3. The position of the oil separation part 32 close to the liquid collecting barrel 2 is an overflow port 41. An overflow block 42 is provided at the position of the guide plate 3 corresponding to the overflow port 41. An overflow surface 43 is provided on the overflow block 42. The overflow surface 43 is inclined. The higher end of the overflow surface 43 is arranged on one side of the liquid collecting barrel 2. The overflow surface 43 is inclined downwardly arranged toward the side away from the liquid collecting barrel 2. The lower end of the overflow block 42 is preferably arranged 5 cm inside the oil layer of the oil separation part 32. When in use, the pressurized dirty liquid is discharged into the tank body 1, and the dirty liquid moves along the inner spiral direction of the guide plate 3; the dirty liquid is divided into an oil layer and a water layer. Under the action of bubbles, the oil layer contains waste residues that are suspended in the oil layer through the buoyancy provided by the bubbles.

[0037] After the dirty liquid enters the tank body 1, it moves to the oil separation part 32, and the flow direction of the dirty liquid is controlled by the guide plate 3. When entering the tank body 1, the probability of the central liquid level sinking due to the centrifugal speed causing turbulence on the liquid surface is reduced, thereby improving the oil removal efficiency.

[0038] Specifically, the dirty liquid corresponds to the position of the overflow port 41, and by continuously adding dirty liquid, the horizontal plane of the dirty liquid in the tank body 1 is at the same height as the upper surface of the liquid collecting barrel 2; the upper surface of the dirty liquid is an oil layer, which enters the liquid collecting barrel 2 through vortex flow to achieve separation of the oil layer and the water layer; the overflow block 42 arranged at the overflow port 41 can effectively prevent the oil phase and waste residue from escaping from the liquid collecting barrel 2, thereby improving the oil removal efficiency.

[0039] Specifically, when the dirty liquid moves to the overflow port 41, it hits the liquid collecting barrel 2, and a backflow turbulence situation will occur. When backflow occurs, the dirty liquid at the front and the dirty liquid at the rear collide with each other, and the level of the dirty liquid will rise near the overflow port 41, causing the separated oil layer and water layer to be easily remixed, forming an emulsion that enters the liquid collecting barrel 2; the lowest end of the overflow block 42 is set at a depth of 5 cm in the oil layer of the dirty liquid. When the dirty liquid moves to the overflow port 41, the oil layer and the water layer are separated by the overflow surface 43 opened on the overflow block 42. The oil layer is guided to move along the overflow surface 43 so that it enters the liquid collecting barrel 2. The water layer at the lower end of the overflow surface 43 hits the liquid collecting barrel 2, thereby raising the oil layer and increasing the probability of the oil layer entering the liquid collecting barrel 2. At the same time, the probability of water in the water layer entering the liquid collecting barrel 2 is reduced, and the amount of emulsion formed is reduced, thereby improving the segmentation efficiency of the oil layer and the water layer. Subsequently, the oil layer is collected by the liquid collecting barrel 2, and the drainage pipe 12 opened on the tank body 1 collects the sewage at the lower part of the water layer, so as to keep the horizontal plane of the sewage level flush with the horizontal plane of the liquid collecting barrel 2.

[0040] See also Figure 1-8As shown, an oil scraper assembly 5 is provided at a position of the tank body 1 corresponding to the oil separation portion 32, and the oil scraper assembly 5 includes a guide rail 51 fixedly connected to the tank cover 11 and a sliding assembly 6; the guide rail 51 includes an oil scraper portion 52 and a reset portion 53, the extension direction of the oil scraper portion 52 is arranged in the same line with the inner spiral line of the oil separation portion 32, the terminal end of the oil scraper portion 52 is in the same vertical plane as the axis of the liquid collecting barrel 2, the other end of the oil scraper portion 52 is the starting end, and the starting end of the oil scraper portion 52 is in the same vertical plane as the boundary between the oil separation portion 32 and the slag condensation portion 31.

[0041] See also Figure 1-8 As shown, the starting end of the reset portion 53 is in the same vertical plane as the axis of the liquid collecting barrel 2, the ending end of the reset portion 53 is in the same vertical plane as the boundary between the oil separation portion 32 and the slag condensation portion 31, and the reset portion 53 is connected to the oil scraping portion 52 end to end.

[0042] See also Figure 1-8 As shown, the sliding assembly 6 includes a sliding block 61, an oil scraper plate 62, a spring 63, a positioning column 64 and an oil scraper block 65; the sliding block 61 is slidably connected to the guide rail 51, and the driving motor 66 is arranged on one side of the sliding block 61 to push the sliding block 61 to move along the guide rail 51; an oil scraper block 65 is arranged on the side of the sliding block 61 away from the rail; the end of the oil scraper block 65 away from the sliding block 61 is fixedly connected to the oil scraper plate 62, and the axis of the oil scraper plate 62 is parallel to the axis of the liquid collecting barrel 2; a spring 63 is arranged between the oil scraper block 65 and the sliding block 61; the axis of the spring 63 is parallel to the axis of the oil scraper plate 62; one end of the spring 63 is fixedly connected to the oil scraper block 65, and the other end of the spring 63 is fixedly connected to the sliding block 61.

[0043] See also Figure 1-8 As shown, a positioning column 64 is fixedly connected to one side of the oil scraper block 65 close to the sliding block 61, the axis of the positioning column 64 is parallel to the axis of the liquid collecting barrel 2, the positioning column 64 can pass through the sliding block 61, and the end of the positioning column 64 away from the oil scraper block 65 is rotatably connected to a universal wheel 67, and the universal wheel abuts against the tank cover 11.

[0044] See also Figure 1-8As shown, a raised block 7 is provided at the position of the tank cover 11 corresponding to the oil scraping portion 52, and the universal wheel 67 abuts against the raised block 7 and moves according to the ups and downs of the raised block 7; the raised block 7 includes a lifting portion 71, a parallel portion 72 and a descending portion 73; the lifting portion 71 is arranged in the starting end of the oil scraping portion 52 of the guide track 51 and the terminal end of the reset portion 53; one end of the parallel portion 72 of the raised block 7 is fixedly connected to the lifting portion 71, and the other end of the parallel portion 72 is fixedly connected to the descending portion 73, the parallel portion 72 of the raised block 7 is arranged in the oil scraping portion 52 of the guide track 51, and the distance between the parallel portion 72 of the raised block 7 and the plane of the tank cover 11 is 7~13cm. In the present invention, the distance between the parallel portion 72 of the raised block 7 and the plane of the tank cover 11 is 10cm; the descending portion 73 is arranged at the terminal end of the oil scraping portion 52 of the guide track 51 and the starting end of the reset portion 53, and the descending portion 73 is arranged above the liquid collecting barrel 2.

[0045] See also Figure 1-8 As shown, the cleaning plate 74 is arranged at the front end of the sliding block 61 for one-way transportation along the guide track 51. Under normal circumstances, the cleaning plate 74 can abut against the scraper plate 62, and the bottom end of the cleaning plate 74 is lower than the bottom end of the scraper plate 62. The length of the cleaning plate 74 is 5~10cm. In the present invention, the length of the cleaning plate 74 is 6cm.

[0046] When in use, the sliding block 61 is driven by the driving motor 66 to move along the guide track 51. The sliding block 61 moves along the starting end of the oil scraping part 52 on the guide track 51 to the ending end of the oil scraping part 52, and then enters the starting end of the reset part 53 and moves to the ending end of the reset part 53, performing a circular continuous motion; the sliding block 61 moves, synchronously driving the oil scraping block 65, the spring 63 and the oil scraping plate 62 to move; the positioning column 64 fixed to the oil scraping block 65 passes through the sliding block 61, and through the sliding block 61 and the oil scraping block 65, The positioning column 64 is limited to move synchronously, and the oil scraper block 65 moves along the axis direction of the positioning column 64; the universal wheel 67 at the end of the positioning column 64 abuts against the tank cover 11, and the universal wheel 67 rotates to achieve synchronous movement; the two ends of the spring 63 are respectively fixed to the oil scraper block 65 and the sliding block 61. The spring 63 has a force to drive the oil scraper block 65 to approach the sliding block 61 under normal conditions, driving the oil scraper block 65, the positioning column 64 and the universal wheel 67 to move close to the sliding block 61, so that the universal wheel 67 abuts against the tank cover 11; When the sliding block 61 moves to above the oil scraping part 52, the universal wheel 67 at the end of the positioning column 64 abuts against the raised part 71 of the raised block 7 fixed to the tank cover 11, and the raised block 7 enables the universal wheel 67 to drive the positioning column 64 and the oil scraping block 65 to move toward the side away from the sliding block 61; the spring 63 is stretched, and the elastic potential energy has the force to drive the oil scraping block 65, the positioning column 64 and the universal wheel 67 to move toward the sliding block 61; the oil scraping block 65 and the oil scraping plate 62 tend to move toward the oil layer until they enter the oil layer. The length of the oil scraping plate 62 is preferably 5 cm long so that it can extend into the oil layer of the flotation tank in a vertical state, and the parallel part 72 of the raised block 7 is 10 cm away from the plane of the tank cover 11.

[0047] When the sliding block 61 moves to above the reset portion 53, the elastic potential energy of the spring 63 has the force to drive the oil scraper block 65, the positioning column 64 and the universal wheel 67 to move closer to the sliding block 61. The universal wheel 67 at the end of the positioning column 64 abuts against the tank cover 11, and the oil scraper block 65 and the oil scraper plate 62 tend to move away from the oil layer until they leave the oil layer.

[0048] When the sliding block 61 moves above the liquid collecting barrel 2, the falling part 73 of the protruding block 7 abuts against the universal wheel, and the spring 63 has a force to drive the scraper block 65, the positioning column 64 and the universal wheel 67 to move closer to the sliding block 61. The scraper block 65, the positioning column 64 and the universal wheel 67 move along the height change of the falling part of the protruding block 7. The cleaning plate 74 arranged on one side of the scraper plate 62 abuts against the scraper plate 62 to scrape off the scum adhered to the scraper plate 62. At this time, the sliding block 61 is located above the liquid collecting barrel 2, and the scum scraped from the scraper plate 62 by the cleaning plate 74 enters the liquid collecting barrel 2 for collection.

[0049] The present invention: Efficient oil removal and separation: By coupling cyclone oil removal and flotation oil removal technology, the system achieves efficient removal of oil from oily wastewater. The cyclone design promotes oil-water separation, while the flotation process further enhances the removal efficiency of oil droplets. This comprehensive approach not only improves oil removal efficiency, but also effectively reduces the footprint of the equipment, making it easier for personnel to manage and operate.

[0050] Environmental protection and energy saving: No chemical reagents are used in the entire treatment process, which avoids the risk of secondary pollution, reduces corrosion to the treatment equipment, and prolongs the service life of the equipment. This physical treatment method is more environmentally friendly and in line with the current green and sustainable development concept.

[0051] Optimize the use of bubbles: The bubbles generated by the bubble generator 103 are pressurized and completely integrated into the sewage by using the high pressure condition of the pressure gas dissolving tank 102, ensuring the full mixing of the bubbles and the sewage. In a low pressure environment, the bubbles escape naturally to form a large number of bubbles with small diameters, which have a higher probability of adhering to oil droplets, thereby improving the oil removal effect.

[0052] Intelligence and automation: Through the design of the drive motor 66 and the guide rail 51, the oil scraping assembly 5 can automatically and continuously move in the tank body 1 to scrape and collect the oil layer. This automated operation not only improves work efficiency, but also reduces manual intervention, and reduces the difficulty and cost of operation.

[0053] Improve the quality of oil-water separation: By setting the guide plate 3, the liquid collecting barrel 2 and the oil scraper assembly 5 and other components, the system can effectively separate the oil layer and the water layer, avoiding the risk of oil and water remixing to form an emulsion. At the same time, the design of the oil scraper assembly 5 can also ensure the continuous scraping and collection of the oil layer, improving the quality of oil-water separation.

[0054] It should be understood that the above embodiments are only for illustrating the technical concept and features of the present invention, and their purpose is to enable people familiar with this technology to understand the content of the present invention and implement it accordingly. It cannot be determined that the specific implementation of the present invention is limited to these descriptions. For ordinary technicians in the technical field to which the present invention belongs, some simple deductions or substitutions can be made without departing from the concept of the present invention. All equivalent changes or modifications made according to the spirit of the present invention should be covered within the protection scope of the present invention.

Claims

1. An air flotation oil-water separator degreasing equipment, characterized in that: It comprises a tank body (1), a tank cover (11), and a bubble generator (103); A liquid collecting bucket (2) is arranged in the tank body (1), and a guide plate (3) arranged inwardly in a spiral manner is arranged in the tank body (1); the guide plate (3) is at least used to guide the flow direction of the dirty liquid; The flow guide portion comprises a slag condensing portion (31) and an oil separation portion (32); The tank cover (11) is provided with an oil scraping assembly (5) at a position corresponding to the oil separation portion (32); The oil scraping assembly (5) comprises a guide track (51) and a sliding assembly (6), wherein the sliding assembly (6) moves unidirectionally and periodically along the guide track (51); the guide track (51) comprises an oil scraping portion (52) and a reset portion (53), wherein the extension direction of the oil scraping portion (52) is arranged colinearly with the inner helical line of the oil separation portion (32); The can cover (11) is correspondingly provided with a raised block (7), and the distance between the lower end and the upper end of the raised block (7) is 7 to 13 cm; The sliding assembly (6) comprises an oil scraper (62), and the oil scraper (62) can extend at least 5 cm into the oil layer of the flotation tank as the protruding block (7) rises and falls.

2. The oil removal equipment of the air-floating oil-water separator according to claim 1 is characterized in that: The sliding assembly (6) further comprises a sliding block (61), a spring (63) and an oil scraper block (65); a spring (63) is arranged between the sliding block (61) and the oil scraper block (65); the spring (63) has a force for pulling the oil scraper block (65) toward the sliding block (61), and the oil scraper block (65) is fixedly connected to the oil scraper plate (62).

3. The oil removal equipment of the air-floating oil-water separator according to claim 1 is characterized in that: A positioning column (64) is fixedly connected to the oil scraper block (65), one end of the positioning column (64) is arranged on a universal wheel, and the universal wheel is at least used to abut against the tank cover (11).

4. The oil removal equipment of the air-floating oil-water separator according to claim 1 is characterized in that: An overflow block (42) is provided at the end of the liquid collecting barrel (2), an overflow surface (43) is provided on the overflow block (42), the overflow surface (43) is arranged obliquely, the higher end of the overflow surface (43) is arranged at one side of the liquid collecting barrel (2), the side of the overflow surface (43) tends to be away from the liquid collecting barrel (2) and is arranged obliquely downward, and the lower end of the overflow plate is preferably arranged 5 cm inside the oil layer of the oil separation part (32).

5. The oil removal equipment of the air-floating oil-water separator according to claim 1 is characterized by: The raised block (7) comprises a raised portion (71), a parallel portion (72) and a lowered portion (73), wherein the raised portion (71), the parallel portion (72) and the lowered portion (73) are connected to each other at the first position; The lifting portion (71) is arranged at the starting end of the oil scraping portion (52) and the terminating end of the reset portion (53), the parallel portion (72) of the protruding block (7) is arranged in the oil scraping portion (52) of the guide track (51), and the descending portion (73) is arranged at the terminating end of the oil scraping portion (52) and the starting end of the reset portion (53).

6. The oil removal equipment of the air-floating oil-water separator according to claim 1 is characterized by: A cleaning plate (74) is provided on one side of the oil scraper plate (62), and the cleaning plate (74) can abut against the oil scraper plate (62).

7. The oil removal equipment of the air-floating oil-water separator according to claim 1 is characterized by: The oil scraping portion (52) of the guide track (51) is arranged correspondingly to the oil separating portion (32) of the guide portion.

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