An air flotation type oil-water separation mechanism and treatment device

Abstract

The present application provides an air flotation type oil-water separation mechanism and a treatment device, which relates to the field of sewage treatment. It includes a slag scraping plate, a driving mechanism, and a slag scraping component. The driving mechanism includes two symmetrically distributed vertical plates and a slag scraping plate located between the two vertical plates. The surface of the vertical plate is provided with a first vertical groove, a first horizontal groove, a second vertical groove, and a second horizontal groove that are sequentially distributed in a clockwise direction and are interconnected to form a rectangular groove. A sliding rod is arranged between the two vertical plates, and the sliding rod is slidably adapted to the first vertical groove, the first horizontal groove, the second vertical groove, and the second horizontal groove. A cross bar is fixedly connected to the surface of the sliding rod, and the slag scraping plate is fixedly installed at the free end of the cross bar. Through the arranged driving mechanism and slag scraping component, the present application realizes that while the slag scraping plate scrapes the floating slag on the water surface, the floating slag contaminated on its surface can also be scraped off, thereby effectively preventing the floating slag from being brought into the water when the slag scraping plate enters the water surface again, and effectively improving the overall oil-water separation efficiency of the device.

Description

Technical Field

[0001] The present invention relates to the field of sewage treatment, and more particularly, to a flotation type oil-water separation mechanism and a treatment device. Background Art

[0002] The air flotation method, also known as the flotation method, is based on the principle of generating a large number of microbubbles in water to form a three-phase mixture of water, gas, and the substances to be removed. Under the combined action of various forces such as interfacial tension, the buoyancy of rising bubbles, and the hydrostatic pressure difference, after promoting the adhesion of fine bubbles to the tiny oil droplets to be removed, the bonded body floats to the water surface due to its density being less than that of water, thereby separating and removing the oil particles in the water.

[0003] The air flotation method is widely used in the treatment of oily wastewater, especially in the removal of emulsified oil and tiny suspended particles. In addition, the air flotation method is also applicable to the pretreatment of municipal wastewater, the recovery of useful substances in industrial wastewater, and the separation and concentration of activated sludge.

[0004] Traditional air flotation machines often scrape the floating scum on the water surface repeatedly with a scraper. However, the floating scum will adhere to the scraper. When the scraper enters the water surface again, the floating scum on its surface will be brought back into the water, resulting in poor overall floating scum separation effect of the device.

[0005] For example: The "surface scum scraping device of an air flotation machine" disclosed in the Chinese invention patent (application number: CN202311027583.2) has its specification disclose that when the scraper of the existing air flotation machine is working, fine particles in the sewage are likely to adhere to the scraper, resulting in incomplete cleaning of the impurities floating on the surface of the air flotation machine, affecting the filtration efficiency of the sewage, and incomplete separation of the fine impurities in the sewage; the above patent can prove the defects existing in the prior art.

[0006] Therefore, we make improvements on this and propose a flotation type oil-water separation mechanism and a treatment device. Summary of the Invention

[0007] The purpose of the present invention is to address the current problem that the floating scum will adhere to the scraper, and when the scraper enters the water surface again, the floating scum on its surface will be brought back into the water, resulting in poor overall floating scum separation effect of the device.

[0008] To achieve the above-mentioned invention purpose, the present invention provides the following flotation type oil-water separation mechanism and treatment device to improve the above problems.

[0009] Specifically, this application is as follows:

[0010] An air flotation type oil-water separation mechanism, comprising a slag scraping plate, a driving mechanism, and a slag scraping assembly. The driving mechanism includes two symmetrically distributed vertical plates and a slag scraping plate located between the two vertical plates. The surface of the vertical plate is provided with a first vertical groove, a first horizontal groove, a second vertical groove, and a second horizontal groove that are sequentially distributed in a clockwise direction and are interconnected to form a rectangular groove. A sliding rod is arranged between the two vertical plates, and the sliding rod is slidably adapted to the first vertical groove, the first horizontal groove, the second vertical groove, and the second horizontal groove. A cross bar is fixedly connected to the surface of the sliding rod, and the slag scraping plate is fixedly installed at the free end of the cross bar.

[0011] As a preferred technical solution of the present application, rectangular plates are horizontally and slidably connected to the surfaces of the two vertical plates. The rectangular plates are driven by an external driving device. An inclined groove is provided on the surface of the rectangular plate, and the sliding rod passes through the inclined groove and is slidably adapted to it.

[0012] As a preferred technical solution of the present application, two installation grooves are provided on the surface of the vertical plate. One is interconnected with the upper end of the second vertical groove and is vertically distributed, and the other is interconnected with the lower end of the first vertical groove and is vertically distributed. Inclined stop blocks are arranged in the two installation grooves, and the two inclined stop blocks respectively extend into the second vertical groove and the first vertical groove. A first spring is fixedly connected between the inclined stop block and the inner wall of the installation groove.

[0013] As a preferred technical solution of the present application, the slag scraping assembly includes a resetable telescopic rod I. The upper end of the resetable telescopic rod I is fixedly connected with a plate body I. A plate body II is inserted into the side of the plate body I close to the sewage treatment tank. A second spring is fixedly connected between the plate body II and the inner wall of the plate body I.

[0014] An air flotation type oil-water separation treatment device, comprising a sewage treatment tank. The lower surface of the sewage treatment tank is integrally fixed with a sludge tank communicated with it. One side of the sewage treatment tank close to the sludge tank is integrally fixed with a separation tank. A filter plate is fixedly installed in the separation tank. The two vertical plates are respectively fixed on the front and rear sides of the sewage treatment tank. The resetable telescopic rod I is fixed on the filter plate. An air inlet pipe is installed on the bottom surface of the inner wall of the sewage treatment tank.

[0015] As a preferred technical solution of the present application, a slag blowing mechanism is provided on the sewage treatment tank. The slag blowing mechanism includes a resetable telescopic rod II fixed on the side wall of the sewage treatment tank. The free end of the resetable telescopic rod II is fixedly connected with a rectangular box. The side of the rectangular box away from the resetable telescopic rod II is open. A pipe I and a pipe II that are communicated with the inside are fixed on the surface of the rectangular box. A one-way valve I is installed on the pipe I, and a one-way valve II is installed on the pipe II. An air outlet groove is provided on the side wall of the sewage treatment tank. A hose communicated with the air outlet groove is fixedly connected to the sewage treatment tank. The free end of the hose is fixedly installed at the free end of the pipe II.

[0016] As a preferred technical solution of the present application, a stirring mechanism is provided in the sewage treatment tank. The stirring mechanism includes a slide rail installed on the bottom surface of the inner wall of the sewage treatment tank. A slider is slidably connected to the slide rail. A vertical rod is rotatably connected to the slider. Two symmetrically distributed stirring blades are rotatably connected to the vertical rod. A threaded rod is inserted into the upper end of the vertical rod and is threadedly connected thereto. A push rod is horizontally and slidably connected to the inner wall of the sewage treatment tank. The free end of the push rod is fixedly installed on the threaded rod.

[0017] As a preferred technical solution of the present application, an L-shaped rod one is fixed on the surface of the threaded rod. An L-shaped rod two is telescopically inserted into the lower end of the L-shaped rod one. A third spring is sleeved on the surfaces of the L-shaped rod two and the L-shaped rod one. Two ends of the third spring are respectively fixed on the L-shaped rod one and the L-shaped rod two. One end of the L-shaped rod two is integrally fixed with a third spring. An annular sleeve sleeved on the vertical rod is rotatably connected inside the third spring.

[0018] As a preferred technical solution of the present application, a strip-shaped groove is formed on the surface of the vertical rod. A sliding strip slidably adapted to the strip-shaped groove is integrally fixed on the inner wall of the annular sleeve.

[0019] As a preferred technical solution of the present application, a gear coaxially fixed with the stirring blade is arranged outside the vertical rod. A rectangular hole adapted to the gear is formed on the surface of the annular sleeve. A rack meshing with the gear is integrally fixed on the side wall of the rectangular hole. A round tube adapted to the threaded rod is vertically fixed on the sliding rod.

[0020] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0021] In the solution of the present application:

[0022] 1. In order to solve the problem in the prior art that when the scraping plate enters the water surface again, the scum on its surface will be brought into the water again, resulting in poor scum separation effect of the whole device. In the present application, through the arranged driving mechanism and slag scraping assembly, it is realized that while the slag scraping plate scrapes the scum on the water surface, the scum contaminated on its surface can also be scraped off, thereby effectively preventing the scum from being brought into the water when the slag scraping plate enters the water surface again, and effectively improving the efficiency of the whole device for oil-water separation;

[0023] 2. In the present application, through the arranged slag blowing mechanism, it is realized that while the slag scraping plate returns after scraping the scum once, it can blow away the scum on the water surface, further completing the oil-water separation, and making the scum in the area where the slag scraping plate enters the water surface again very little;

[0024] 3. Through the arranged stirring mechanism, the stirring of high-pressure gas is realized, and the gas is broken into tiny bubbles;

[0025] 4. Moreover, the stirring blades in the stirring mechanism can also act as sludge scraping plates and move horizontally together with the slag scraping plate to handle the sludge at the bottom of the sewage treatment tank. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 Structural schematic diagram of the air flotation type oil-water separation mechanism provided by the present application;

[0027] Figure 2 Cross-sectional structural schematic diagram of the air flotation type oil-water separation mechanism provided by the present application;

[0028] Figure 3 Structural schematic diagram of the driving mechanism of the air flotation type oil-water separation mechanism provided by the present application;

[0029] Figure 4 Structural schematic diagram of the slag scraping assembly of the air flotation type oil-water separation mechanism provided by the present application;

[0030] Figure 5 Structural schematic diagram of the slag blowing mechanism of the air flotation type oil-water separation treatment device provided by the present application;

[0031] Figure 6 For the air flotation type oil-water separation treatment device provided by the present application Figure 5 Enlarged structural schematic diagram at position A;

[0032] Figure 7 Structural schematic diagram of the stirring mechanism of the air flotation type oil-water separation treatment device provided by the present application;

[0033] Figure 8 For the air flotation type oil-water separation treatment device provided by the present application Figure 7 Structural schematic diagram at position B.

[0034] Labels in the figure:

[0035] Figure 9 Exploded structural schematic diagram of the stirring mechanism of the air flotation type oil-water separation treatment device provided by the present application;

[0036] 101, Sewage treatment tank; 102, Sludge tank; 103, Separation tank; 104, Filter plate;

[0037] 2, Slag scraping plate;

[0038] 3, Driving mechanism; 301, Vertical plate; 302, First vertical groove; 303, First horizontal groove; 304, Second vertical groove; 305, Second horizontal groove; 306, Slide bar; 307, Cross bar; 308, Rectangular plate; 309, Inclined plane groove; 3010, Installation groove; 3011, Inclined plane stop block; 3012, Spring 1;

[0039] 4. Scum scraping assembly; 401. First resetable telescopic rod; 402. First plate body; 403. Second plate body; 404. Second spring;

[0040] 5. Scum blowing mechanism; 501. Second resetable telescopic rod; 502. Rectangular box; 503. First pipeline; 504. Second pipeline; 505. First one-way valve; 506. Second one-way valve; 507. Air outlet groove; 508. Hose;

[0041] 6. Stirring mechanism; 601. Slide rail; 602. Slide block; 603. Vertical rod; 604. Stirring blade; 605. Threaded rod; 606. Electric push rod; 607. First L-shaped rod; 608. Second L-shaped rod; 609. Third spring; 6010. Ring sleeve; 6011. Strip-shaped groove; 6012. Slide bar; 6013. Gear; 6014. Rectangular hole; 6015. Rack; 6016. Circular pipe;

[0042] 7. Intake pipeline. Specific embodiments

[0043] In order to enable those skilled in the art to better understand the solution of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0044] As described in the background art, scum will adhere to the scraper. When the scraper enters the water surface again, the scum on its surface will be brought into the water again, resulting in poor scum separation effect of the overall device.

[0045] To solve this technical problem, the present invention provides an air flotation type oil-water separation mechanism and treatment device, which is applied to sewage treatment.

[0046] Specifically, please refer to Figure 1 - Figure 4 , the air flotation type oil-water separation mechanism specifically includes:

[0047] Two symmetrically distributed vertical plates, and a scum scraping plate located between the two vertical plates. The surface of the vertical plate is provided with a first vertical groove, a first horizontal groove, a second vertical groove, and a second horizontal groove that are sequentially distributed in a clockwise direction and are interconnected to form a rectangular groove. A slide rod is arranged between the two vertical plates, and the slide rod is slidably adapted to the first vertical groove, the first horizontal groove, the second vertical groove, and the second horizontal groove. A cross bar is fixedly connected to the surface of the slide rod, and the scum scraping plate is fixedly installed at the free end of the cross bar.

[0048] The air flotation type oil-water separation mechanism provided by the present invention realizes that while the slag scraping plate scrapes the floating slag on the water surface, the floating slag contaminated on its surface can also be scraped off through the arranged driving mechanism and slag scraping component, thereby effectively preventing the floating slag from being brought into the water when the slag scraping plate enters the water surface again, and effectively improving the overall oil-water separation efficiency of the device.

[0049] In order to enable those skilled in the art to better understand the solution of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings.

[0050] It should be noted that, without conflict, the embodiments in the present invention and the features and technical solutions in the embodiments can be combined with each other.

[0051] It should be noted that similar reference numerals and letters indicate similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0052] Example 1, please refer to Figure 1 - Figure 4 , an air flotation type oil-water separation mechanism, including a slag scraping plate 2, a driving mechanism 3, and a slag scraping component 4.

[0053] The driving mechanism 3 includes two symmetrically distributed vertical plates 301 and the slag scraping plate 2 located between the two vertical plates 301. The surface of the vertical plate 301 is provided with a first vertical groove 302, a first horizontal groove 303, a second vertical groove 304, and a second horizontal groove 305 that are sequentially distributed in a clockwise direction and communicate with each other to form a rectangular groove. A sliding rod 306 is arranged between the two vertical plates 301. The sliding rod 306 is slidably adapted to the first vertical groove 302, the first horizontal groove 303, the second vertical groove 304, and the second horizontal groove 305. A cross bar 307 is fixedly connected to the surface of the sliding rod 306, and the slag scraping plate 2 is fixedly installed at the free end of the cross bar 307;

[0054] By providing a rectangular groove on the surface of the vertical plate 301, the movement path of the slag scraping plate 2 can be restricted, and the slag scraping plate 2 moves along the rectangular groove.

[0055] Two rectangular plates 308 are horizontally and limit slidably connected to the surfaces of the two vertical plates 301. The rectangular plates 308 are driven by an external driving device. The external driving device is an electric telescopic rod for driving the rectangular plates 308 to move along the horizontal direction. The surface of the rectangular plate 308 is provided with an inclined surface groove 309. The sliding rod 306 passes through the inclined surface groove 309 and is slidably adapted to it. The inclined surface groove 309 can restrict the movement direction of the sliding rod 306.

[0056] Two mounting grooves 3010 are formed on the surface of the vertical plate 301, one of which is in communication with the upper end of the second vertical groove 304 and is vertically distributed, and the other is in communication with the lower end of the first vertical groove 302 and is vertically distributed. In both of the two mounting grooves 3010, inclined surface stoppers 3011 are provided, and the two inclined surface stoppers 3011 extend into the second vertical groove 304 and the first vertical groove 302 respectively. A first spring 3012 is fixedly connected between the inclined surface stopper 3011 and the inner wall of the mounting groove 3010;

[0057] By providing the inclined surface stopper 3011 that can be completely retracted into the mounting groove 3010, the moving direction of the sliding rod 306 can be restricted;

[0058] The lower surface of one inclined surface stopper 3011 located in the second vertical groove 304 is inclined, and is inclined upward from the side close to the corresponding mounting groove 3010 to the side far from the corresponding mounting groove 3010;

[0059] The upper surface of one inclined surface stopper 3011 located in the first vertical groove 302 is inclined, and is inclined downward from the side close to the corresponding mounting groove 3010 to the side far from the corresponding mounting groove 3010.

[0060] Embodiment 2 further optimizes the air flotation type oil-water separation mechanism provided in Embodiment 1. Specifically, as shown in Figure 2 and Figure 4 shown, the slag scraping assembly 4 includes a resetable telescopic rod one 401, which will shorten when subjected to an external force and will return to its original length after the external force disappears. The upper end of the resetable telescopic rod one 401 is fixedly connected with a plate body one 402. A plate body two 403 is inserted into the side of the plate body one 402 close to the sewage treatment tank 101, and the plate body two 403 can telescopically move within the plate body one 402. A second spring 404 is fixedly connected between the plate body two 403 and the inner wall of the plate body one 402;

[0061] After the slag scraping plate 2 pushes the plate body two 403 to move into the plate body one 402, the second spring 404 will have a thrust on the plate body two 403 to make the plate body two 403 abut against the surface of the slag scraping plate 2. When the slag scraping plate 2 moves upward, the plate body two 403 can scrape the floating slag on the surface of the slag scraping plate 2.

[0062] Embodiment 3, please refer to Figure 2 、 Figure 5 、 Figure 6, An air flotation type oil-water separation treatment device, including a sewage treatment tank 101. The lower surface of the sewage treatment tank 101 is integrally fixed with a sludge tank 102 that communicates with it. One side of the sewage treatment tank 101 close to the sludge tank 102 is integrally fixed with a separation tank 103. A filter plate 104 is fixedly installed in the separation tank 103. Two vertical plates 301 are respectively fixed on the front and back sides of the sewage treatment tank 101. The resetable telescopic rod one 401 is fixed on the filter plate 104;

[0063] Specifically, the partition between the sewage treatment tank 101 and the separation tank 103 is slightly lower, so that the slag scraping plate 2 can scrape the floating slag on the sewage treatment tank 101 into the separation tank 103, and the filter plate 104 can filter water from the floating slag.

[0064] A slag blowing mechanism 5 is arranged on the sewage treatment tank 101.

[0065] The slag blowing mechanism 5 includes a resetable telescopic rod two 501 fixed on the side wall of the sewage treatment tank 101. When the resetable telescopic rod two 501 is under external force, it will shorten and return to its original length after the external force disappears. The free end of the resetable telescopic rod two 501 is fixedly connected with a rectangular box 502. The side of the rectangular box 502 away from the resetable telescopic rod two 501 is open. A pipe one 503 and a pipe two 504 that communicate with its interior are fixed on the surface of the rectangular box 502. A one-way valve one 505 is installed on the pipe one 503, and a one-way valve two 506 is installed on the pipe two 504;

[0066] When the slag scraping plate 2 enters the rectangular box 502, it will closely fit the inner wall of the rectangular box 502 and act as a piston plate. The slag scraping plate 2 making a piston motion in the rectangular box 502 can transport gas.

[0067] An air outlet groove 507 is opened on the side wall of the sewage treatment tank 101. A hose 508 that communicates with the air outlet groove 507 is fixedly connected to the sewage treatment tank 101. The free end of the hose 508 is fixedly installed on the free end of the pipe two 504;

[0068] The gas transported by the slag scraping plate 2 making a piston motion comes out from the air outlet groove 507 and blows the floating slag on the surface of the sewage treatment tank 101 towards the separation tank 103 side.

[0069] Example 4, please refer to Figure 7 - Figure 9, a stirring mechanism 6 is arranged in the sewage treatment tank 101. The stirring mechanism 6 includes a slide rail 601 installed on the bottom surface of the inner wall of the sewage treatment tank 101. A slider 602 is slidably connected to the slide rail 601. A vertical rod 603 is rotatably connected to the slider 602. Two symmetrically distributed stirring blades 604 are rotatably connected to the vertical rod 603. Thus, the working angle of the stirring blades 604 can be adjusted. A threaded rod 605 is inserted into the upper end of the vertical rod 603 and is threadedly connected thereto. The up-and-down movement of the threaded rod 605 can drive the vertical rod 603 to rotate. The inner wall of the sewage treatment tank 101 is horizontally and limitably slidably connected with an electric push rod 606. The free end of the electric push rod 606 is fixedly installed on the threaded rod 605, and the electric push rod 606 can drive the threaded rod 605 to move up and down.

[0070] An L-shaped rod one 607 is fixed on the surface of the threaded rod 605. An L-shaped rod two 608 is telescopically inserted into the lower end of the L-shaped rod one 607. A spring three 609 is sleeved on the surfaces of the L-shaped rod two 608 and the L-shaped rod one 607. Both ends of the spring three 609 are respectively fixed on the L-shaped rod one 607 and the L-shaped rod two 608. One end of the L-shaped rod two 608 is integrally fixed with the spring three 609. An annular sleeve 6010 sleeved on the vertical rod 603 is rotatably connected in the spring three 609. The spring three 609 can press the annular sleeve 6010 against the surface of the slider 602.

[0071] A strip-shaped groove 6011 is formed on the surface of the vertical rod 603. A slide bar 6012 that is slidably adapted to the strip-shaped groove 6011 is integrally fixed on the inner wall of the annular sleeve 6010. Thus, the vertical rod 603 can drive the annular sleeve 6010 to rotate therewith, and the annular sleeve 6010 can also move up and down along the vertical rod 603.

[0072] A gear 6013 coaxial with the stirring blade 604 is arranged outside the vertical rod 603. A rectangular hole 6014 adapted to the gear 6013 is formed on the surface of the annular sleeve 6010. A rack 6015 that meshes with the gear 6013 is integrally fixed on the side wall of the rectangular hole 6014;

[0073] The cooperation of the rack 6015 and the gear 6013 can cause the stirring blade 604 to change in angle.

[0074] A round tube 6016 adapted to the threaded rod 605 is vertically fixed on the slide rod 306. The threaded rod 605 can be inserted into the round tube 6016.

[0075] An air inlet pipe 7 is installed on the bottom surface of the inner wall of the sewage treatment tank 101 to allow external high-pressure gas to enter.

[0076] The use process of the air flotation type oil-water separation mechanism and treatment device provided by the present invention is as follows:

[0077] Working principle:

[0078] When external sewage enters the sewage treatment tank 101 and the water level is flush with the partition between the sewage treatment tank 101 and the separation tank 103, the scum floating on the water surface can be scraped into the separation tank 103, thus achieving the function of oil-water separation;

[0079] Start the external electric telescopic rod to push the two rectangular plates 308 to move reciprocally along the horizontal direction. When the rectangular plate 308 moves towards the side close to the separation tank 103, the inner wall of the inclined groove 309 can push the sliding rod 306 to move towards the side close to the separation tank 103 along the second horizontal groove 305. The sliding rod 306 can drive the slag scraping plate 2 to move towards the side close to the separation tank 103 through the cross bar 307. At this time, the slag scraping plate 2 scrapes the scum on the surface of the sewage treatment tank 101 into the separation tank 103;

[0080] When the slag scraping plate 2 moves to the side of the second plate body 403, it can push the second plate body 403 to move into the first plate body 402, and at the same time, the second plate body 403 also abuts against the surface of the slag scraping plate 2;

[0081] When the sliding rod 306 moves to the end of the second horizontal groove 305, the inner wall of the inclined groove 309 can push the sliding rod 306 to move upward along the second vertical groove 304. The sliding rod 306 can drive the slag scraping plate 2 to move upward through the cross bar 307, so that the scum on the surface of the slag scraping plate 2 is scraped off by the second plate body 403, thus completing the cleaning of the slag scraping plate 2, and at the same time, the slag scraping plate 2 is separated from the water surface;

[0082] And during the upward movement of the sliding rod 306, it will gradually push the inclined surface of one of the inclined surface stoppers 3011, so that the inclined surface stopper 3011 moves into the installation groove 3010, and thus smoothly moves into the first horizontal groove 303. At this time, the resilience of the first spring 3012 drives the inclined surface stopper 3011 to return to its original position, then the inclined surface stopper 3011 blocks the sliding rod 306 and makes it unable to move downward;

[0083] At this time, the two rectangular plates 308 move towards the side close to the sewage treatment tank 101. The rectangular plate 308 can push the sliding rod 306 to move towards the side close to the first vertical groove 302. The sliding rod 306 can drive the slag scraping plate 2 to move towards the side close to the first vertical groove 302 through the cross bar 307. The slag scraping plate 2 gradually enters the rectangular box 502 and acts as a piston plate. When the slag scraping plate 2 moves into the rectangular box 502, it can squeeze the gas in the rectangular box 502 out and spray it through the air outlet groove 507. At this time, the scum on the surface of the sewage treatment tank 101 is blown towards the side of the separation tank 103. When the slag scraping plate 2 touches the water surface again, there is less scum on the water surface near this part of the air outlet groove 507;

[0084] When the slide bar 306 moves to the upper end of the first vertical groove 302, the slide bar 306 will move downward along the first vertical groove 302. The slide bar 306 can push another inclined surface stopper 3011 into the installation groove 3010, so that the slide bar 306 can smoothly move into the second horizontal groove 305, and the inclined surface stopper 3011 will return to its original position to block the slide bar 306 to prevent it from moving into the first vertical groove 302;

[0085] Meanwhile, the slide bar 306 drives the slag scraping plate 2 to move downward through the cross bar 307. The slag scraping plate 2 drives the rectangular box 502 to move downward. When the slag scraping plate 2 moves toward the second vertical groove 304 side, it will gradually come out of the rectangular box 502. After the driving mechanism 3 disengages from the rectangular box 502, the rectangular box 502 moves upward to return to its original position;

[0086] When the slide bar 306 moves upward along the second vertical groove 304 and the slide bar 306 has not passed over the inclined surface stopper 3011, and after the slag scraping plate 2 is above the second plate body 403, the rectangular plate 308 can move toward the sewage treatment tank 101 side, so as to push the slide bar 306 to move downward along the second vertical groove 304. The slide bar 306 can drive the slag scraping plate 2 to move downward through the cross bar 307. The slag scraping plate 2 can push the second plate body 403 and the first plate body 402 to move downward, so that the second plate body 403 and the first plate body 402 squeeze the floating slag in the separation tank 103 to dehydrate the floating slag;

[0087] In the initial state, the two stirring blades 604 are located at the middle position in the sewage treatment tank 101;

[0088] Start the electric push rod 606 to drive the threaded rod 605 to move up and down. Since the threaded rod 605 is threadedly connected to the vertical rod 603, the threaded rod 605 can drive the vertical rod 603 to rotate. The vertical rod 603 can drive the two stirring blades 604 to rotate accordingly, so that the stirring blades 604 break up the gas coming in through the air inlet pipe 7 to form small bubbles;

[0089] When the electric push rod 606 drives the threaded rod 605 to move up and down reciprocally to drive the two stirring blades 604 to rotate and stir the bubbles, the threaded rod 605 will not contact the annular sleeve 6010 that moves with the slide bar 306, nor will it block the slag scraping work of the slag scraping plate 2;

[0090] And the stirring blades 604 are in an inclined state when stirring the bubbles and will not contact the bottom surface of the sewage treatment tank 101;

[0091] When the slide bar 306 can drive the round tube 6016 to move accordingly when moving. When the slide bar 306 is in the second horizontal groove 305 and the round tube 6016 is directly above the threaded rod 605, drive the threaded rod 605 to move upward through the electric push rod 606, so that the threaded rod 605 is inserted into the round tube 6016;

[0092] Meanwhile, the threaded rod 605 drives the first L-shaped rod 607 to move upward accordingly. When the third spring 609 returns to its original state, the first L-shaped rod 607 can drive the second L-shaped rod 608 to move upward accordingly. The second L-shaped rod 608 can drive the annular sleeve 6010 to move upward through the third spring 609. The annular sleeve 6010 can drive the rack 6015 to move upward. The rack 6015 can drive the gear 6013 to rotate. The gear 6013 can drive the stirring blade 604 to rotate, so that the stirring blade 604 changes from an inclined state to a vertical state and fits against the inner bottom surface of the sewage treatment tank 101. At this time, the stirring blade 604 can act as a sludge scraper and move along with the sliding rod 306 to scrape the sludge at the bottom of the sewage treatment tank 101 into the sludge tank 102;

[0093] When the threaded rod 605 is inserted into the round tube 6016, the two stirring blades 604 are perpendicularly distributed with respect to the sliding rail 601.

[0094] In the present invention, unless otherwise clearly specified and defined, terms such as "installation", "connection", "linkage", "fixation" and the like shall be construed in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral one; it may be a mechanical connection, an electrical connection or communication with each other; it may be a direct connection, or an indirect connection through an intermediate medium, and may be the internal communication of two components or the interaction relationship between two components, unless otherwise clearly defined. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0095] Obviously, the embodiments described above are only a part of the embodiments of the present invention, rather than all of them. The preferred embodiments of the present invention are shown in the drawings, but do not limit the patent scope of the present invention. The present invention can be implemented in many different forms. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosed content of the present invention more thorough and comprehensive. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions described in the foregoing specific embodiments, or perform equivalent replacements for some of the technical features. Any equivalent structures directly or indirectly using the content of the specification and drawings of the present invention in other related technical fields shall be within the scope of the patent protection of the present invention by the same token.

Claims

1. An air-floating oil-water separation mechanism, characterized in that: The invention comprises a scraper plate (2), a driving mechanism (3), and a scraper assembly (4), wherein the driving mechanism (3) comprises two symmetrically distributed vertical plates (301), and a scraper plate (2) located between the two vertical plates (301); a surface of the vertical plate (301) is provided with a first vertical groove (302), a first horizontal groove (303), a second vertical groove (304), and a second horizontal groove (305) which are sequentially distributed in a clockwise direction and interconnected to form a rectangular groove; a sliding rod (306) is provided between the two vertical plates (301); the sliding rod (306) is slidably matched with the first vertical groove (302), the first horizontal groove (303), the second vertical groove (304), and the second horizontal groove (305); a horizontal rod (307) is fixedly connected to the surface of the sliding rod (306); and the scraper plate (2) is fixedly mounted on the free end of the horizontal rod (307); The surfaces of the two vertical plates (301) are both laterally limited and slidably connected with rectangular plates (308), the rectangular plates (308) are driven by an external driving device, the surfaces of the rectangular plates (308) are provided with inclined grooves (309), and the sliding rods (306) pass through the inclined grooves (309) and are slidably adapted thereto; The surface of the vertical plate (301) is provided with two installation grooves (3010), one of which is interconnected with the upper end of the second vertical groove (304) and is vertically distributed, and the other is interconnected with the lower end of the first vertical groove (302) and is vertically distributed, and the two installation grooves (3010) are both provided with inclined surface blocks (3011), and the two inclined surface blocks (3011) extend into the second vertical groove (304) and the first vertical groove (302) respectively, and a spring 1 (3012) is fixedly connected between the inclined surface block (3011) and the inner wall of the installation groove (3010); The scraper assembly (4) comprises a repositionable telescopic rod (401), the upper end of which is fixedly connected to a plate body (402), a side of the plate body (402) close to the sewage treatment tank (101) being plugged with a plate body (403), and a spring (404) being fixedly connected between the plate body (403) and the inner wall of the plate body (402).

2. An air-floating oil-water separation treatment device, using the air-floating oil-water separation mechanism according to claim 1, characterized in that: The invention comprises a sewage treatment box (101), wherein a sludge box (102) which is in communication with the sewage treatment box (101) is integrally fixed to the lower surface of the sewage treatment box (101), a separation box (103) is integrally fixed to a side of the sewage treatment box (101) close to the sludge box (102), a filter plate (104) is fixedly installed in the separation box (103), two vertical plates (301) are respectively fixed to the front and rear sides of the sewage treatment box (101), a repositionable telescopic rod (401) is fixed to the filter plate (104), and an air intake pipe (7) is installed on the bottom surface of the inner wall of the sewage treatment box (101).

3. The air flotation type oil-water separation treatment device according to claim 2, characterized in that: The sewage treatment box (101) is provided with a slag blowing mechanism (5), the slag blowing mechanism (5) comprising a second repositionable telescopic rod (501) fixed on the side wall of the sewage treatment box (101), the free end of the second repositionable telescopic rod (501) being fixedly connected to a rectangular box (502), the side of the rectangular box (502) away from the second repositionable telescopic rod (501) being open, a first pipe (503) and a second pipe (504) being connected to the inside of the rectangular box (502) being fixed on the surface of the rectangular box (502), a first check valve (505) being installed on the first pipe (503), a second check valve (506) being installed on the second pipe (504), an air outlet slot (507) being provided on the side wall of the sewage treatment box (101), a hose (508) being fixedly connected to the sewage treatment box (101) and connected to the air outlet slot (507), the free end of the hose (508) being fixedly installed on the free end of the second pipe (504).

4. The air flotation type oil-water separation treatment device according to claim 3, characterized in that: A stirring mechanism (6) is provided in the sewage treatment tank (101), the stirring mechanism (6) comprising a slide rail (601) mounted on the bottom surface of the inner wall of the sewage treatment tank (101), a slider (602) being slidably connected to the slide rail (601), a vertical rod (603) being rotatably connected to the slider (602), two symmetrically distributed stirring blades (604) being rotatably connected to the vertical rod (603), a threaded rod (605) being threadedly connected to the vertical rod (603) being inserted at the upper end thereof, an electric push rod (606) being slidably connected to the inner wall of the sewage treatment tank (101), the free end of the electric push rod (606) being fixedly mounted on the threaded rod (605).

5. The air flotation type oil-water separation treatment device according to claim 4, characterized in that: An L-rod 1 (607) is fixed on the surface of the threaded rod (605); an L-rod 2 (608) is telescopically inserted at the lower end of the L-rod 1 (607); a spring 3 (609) is sleeved on the surfaces of the L-rod 2 (608) and the L-rod 1 (607); two ends of the spring 3 (609) are respectively fixed on the L-rod 1 (607) and the L-rod 2 (608); one end of the L-rod 2 (608) is integrally fixed with the spring 3 (609); and an annular sleeve (6010) sleeved on the vertical rod (603) is rotatably connected inside the spring 3 (609).

6. The air-floating oil-water separation treatment device according to claim 5, characterized in that: The surface of the vertical rod (603) is provided with a strip groove (6011), and the inner wall of the annular sleeve (6010) is integrally fixed with a sliding strip (6012) that is slidably matched with the strip groove (6011).

7. The air flotation type oil-water separation treatment device according to claim 6, characterized in that: A gear (6013) coaxially fixed with the stirring blade (604) is arranged on the outside of the vertical rod (603); a rectangular hole (6014) adapted to the gear (6013) is opened on the surface of the annular sleeve (6010); a rack (6015) meshing with the gear (6013) is integrally fixed on the side wall of the rectangular hole (6014); and a round tube (6016) adapted to the threaded rod (605) is vertically fixed on the sliding rod (306).

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