A sewage treatment flotation tank decontamination device

Abstract

The present invention relates to the technical field of sewage treatment equipment, and discloses a sewage treatment flotation tank decontamination device, comprising: a scraper, the scraper can be slidably mounted above the flotation tank, and the scraper can scrape the scum on the surface of the flotation tank to move when sliding; a driving component, driving the scraper to slide above the flotation tank through the driving component; a jet cleaning component, the jet cleaning component is mounted on the scraper, and the scraper surface is cleaned by blowing air through the jet cleaning component; an automatic air supply component, the automatic air supply component is connected to the jet cleaning component, and can automatically supply air to the jet cleaning component when the scraper moves above the sludge area of ​​the flotation tank. The present invention can realize automatic cleaning when the scraper reaches the sludge area of ​​the flotation tank through the jet cleaning component and the automatic air supply component, so that the scraper can be prevented from bringing the scum back again when moving to the flotation tank, thereby effectively ensuring the decontamination effect.

Description

Technical Field

[0001] The present invention relates to the technical field of sewage treatment equipment, and more specifically to a sewage treatment flotation tank decontamination device. Background Art

[0002] The flotation tank wastewater treatment is carried out by introducing gas into the wastewater to generate microbubbles in the wastewater. These bubbles will attach to the surface of suspended matter in the wastewater, thereby reducing the overall density of the suspended matter, and then forcing the suspended matter in the wastewater to float to the water surface to form scum, which is finally sent to the sludge area at the back end using a decontamination device.

[0003] At present, the conventional flotation tank decontamination device is roughly composed of a chain drive system and a scraper. The scraper is connected to the chain in the chain drive system and is installed on the surface of the flotation tank. The rotation of the chain drives the scraper to rotate, so that the scraper can scrape away the floating scum on the surface of the flotation tank to achieve water purification. It is very convenient to use.

[0004] However, the above-mentioned decontamination device still has certain defects in actual use, namely:

[0005] When the scraper is scraping off the scum, some scum will adhere to the scraper surface. When the scraper reaches the top of the rear sludge area, these scum cannot fall quickly due to adhesion, causing them to return to the flotation tank following the movement of the scraper, resulting in incomplete decontamination effect. Summary of the invention

[0006] In order to overcome the above-mentioned defects of the prior art, the present invention provides a sewage treatment flotation tank decontamination device to solve the problem in the above-mentioned background technology that during use of the existing sewage treatment flotation tank decontamination device, the scraper will bring part of the adhered scum back to the flotation tank, resulting in incomplete decontamination effect.

[0007] The present invention provides the following technical solutions: a sewage treatment flotation tank decontamination device, comprising: a scraper, which can be slidably installed above the flotation tank, and when the scraper slides, it can scrape the scum on the surface of the flotation tank to move; a driving component, which drives the scraper to slide above the flotation tank through the driving component; a jet cleaning component, which is installed on the scraper, and the scraper surface is cleaned by blowing air through the jet cleaning component; an automatic air supply component, which is connected to the jet cleaning component and can automatically supply air to the jet cleaning component when the scraper moves above the sludge area of ​​the flotation tank; a vibration component, which is connected to the scraper, and when the jet cleaning component is running, the scraper is driven to vibrate through the vibration component.

[0008] Furthermore, the driving assembly includes a sprocket, a chain, a connecting piece and a motor. The sprocket is rotatably installed on the flotation tank, and there are two sprockets. The two sprockets are driven by the chain. The motor is fixedly installed on the side of the flotation tank, and the motor is coaxially connected to a sprocket and can drive the sprocket to rotate. The connecting piece is connected to a link of the chain and can move synchronously with the link. The scraper is connected to the connecting piece and can move synchronously with the connecting piece.

[0009] Furthermore, the jet cleaning assembly includes a jet hood, an air separation cavity and an air supply pipe. The jet hood is fixedly connected to the connecting piece. An opening is provided on the surface of the jet hood. One side of the scraper is installed into the middle of the jet hood from the opening. The air separation cavity is arranged in the jet hood, and the air separation cavity is arranged on the side of the jet hood away from the scraper. The air separation cavity is equipped with an air outlet groove. A jet gap is left between the scraper surface and the inner wall of the jet hood, and the air outlet groove is connected to the jet gap.

[0010] Furthermore, the automatic air supply component includes an air pump and a connecting component. The air pump is fixedly installed on the side of the flotation tank, and the power input end of the air pump is coaxially connected to the sprocket shaft, and the sprocket can drive the air pump to operate. The air outlet end of the air pump is connected to the air supply pipe through the connecting component, and the connecting component can pass the air of the air pump into the air supply pipe when the scraper moves above the sludge area of ​​the flotation tank.

[0011] Furthermore, the connecting component includes a fixed disk, a rotating disk, an air inlet pipe, an air connecting cavity and an air outlet. The fixed disk is fixedly installed on the inner wall of the flotation tank and is coaxially arranged with the sprocket shaft. The rotating disk is coaxial with the fixed disk, and the rotating disk is rotatably installed on the side of the fixed disk. At the same time, the rotating disk is sleeved on the rotating shaft of the sprocket, and the rotating disk is tightly attached to the fixed disk. The air connecting cavity is opened on a side of the fixed disk close to the rotating disk. The air inlet pipe is fixedly installed on a side of the fixed disk away from the rotating disk, and one end of the air inlet pipe is connected with the air connecting cavity, and the other end is connected with the air outlet end of the air pump. The air outlet is opened on the surface of the rotating disk, and when the rotating disk rotates, the air outlet can be connected with the air connecting cavity. At the same time, when the scraper moves to the middle of the rotating disk, the air supply pipe is connected with the air outlet.

[0012] Furthermore, the connecting component also includes a second guide groove, which is arranged on the front side of the air outlet along the rotation direction of the rotating disk, and when the air supply pipe is connected with the air outlet, the end of the air supply pipe enters the second guide groove.

[0013] Furthermore, the connecting component also includes a first guide groove, which is opened on the surface of the rotating disk, and the first guide groove and the second guide groove are symmetrically arranged on both sides of the air outlet, and the second guide groove is connected to the first guide groove.

[0014] Furthermore, the connecting component also includes a fixed limit block, a movable limit block and a coil spring. The fixed limit block is fixedly installed on the edge of the fixed disk, and the movable limit block is fixedly installed on the edge of the rotating disk. A groove is provided on the surface of the fixed disk close to the rotating disk. The coil spring is installed in the groove, and one end of the coil spring is fixedly connected to the fixed disk, and the other end is fixedly connected to the rotating disk. At the same time, the rotating disk rotates under the action of the coil spring and drives the movable limit block to be close to the fixed limit block. When the movable limit block is aligned with the fixed limit block, the air supply pipe corresponds to the position of the guide groove, and can slide into the guide groove when the scraper moves.

[0015] Furthermore, the vibration assembly includes a tension spring, the scraper is rotatably installed in the jet cover, the tension spring is connected to the scraper, and the scraper can shake under the action of the tension spring.

[0016] Furthermore, the vibration assembly also includes a protective cover, which is rotatably installed at the opening of the jet hood, and the end of the tension spring away from the scraper is connected to the protective cover, and the protective cover covers the jet gap under the action of the tension spring.

[0017] Technical effects and advantages of the present invention:

[0018] 1. The present invention can realize automatic cleaning when the scraper reaches the upper part of the sludge area of ​​the flotation tank through the jet cleaning component and the automatic air supply component during use. In this way, it can be avoided that the scraper brings the scum back again when moving to the flotation tank, thereby effectively ensuring the decontamination effect.

[0019] 2. In the present invention, since the scum on the scraper surface can be automatically cleaned, there is no need to frequently clean the scraper surface manually, thereby reducing the frequency of maintenance. Moreover, cleaning can be achieved without stopping the machine, thereby ensuring the decontamination efficiency.

[0020] 3. In the present invention, when cleaning the scraper surface, the vibration component will also drive the scraper to vibrate, which will promote the scum adhering to the scraper surface to fall off, further improving the cleaning effect, and when the scraper is away from the sludge area, that is, when it is separated from the automatic air supply component, the vibration component can also close the jet port of the jet cleaning component, playing a good protective role. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0022] Figure 2 It is a schematic diagram of the split structure of the present invention;

[0023] Figure 3 For the present invention Figure 2 The enlarged structural diagram at A in the middle;

[0024] Figure 4 For the present invention Figure 2 The enlarged structural diagram at B in the middle;

[0025] Figure 5 This is a schematic diagram of the internal installation of the flotation tank of the present invention;

[0026] Figure 6 For the present invention Figure 5 The enlarged structural diagram at C in the middle;

[0027] Figure 7 It is a schematic diagram of the split structure of the automatic air supply component of the present invention from a first viewing angle;

[0028] Figure 8 It is a schematic diagram of the split structure of the automatic air supply component of the present invention from a second viewing angle;

[0029] Fig. 9 It is a schematic diagram of the internal structure of the jet hood of the present invention.

[0030] The accompanying drawings are marked as follows: 1. scraper; 2. flotation tank; 3. sprocket; 4. chain; 5. connector; 6. motor; 7. jet hood; 8. air distribution cavity; 9. air supply pipe; 10. air outlet groove; 11. jet gap; 12. air pump; 13. fixed plate; 14. rotating plate; 15. air inlet pipe; 16. air connection cavity; 17. air outlet hole; 18. second guide groove; 19. first guide groove; 20. fixed limit block; 21. movable limit block; 22. coil spring; 23. groove; 24. tension spring; 25. protective cover; 26. angle plate; 27. pin; 28. hard part; 29. ​​elastic part. DETAILED DESCRIPTION

[0031] The present invention is further described below in conjunction with specific embodiments. However, people familiar with the art should understand that the detailed description given here in conjunction with the drawings is for better explanation, and the structure of the present invention necessarily exceeds these limited embodiments. For some equivalent replacement schemes or common means, they are no longer described in detail herein, but still belong to the scope of protection of the present application.

[0032] Figure 1-Figure 9 The best embodiment of the present invention is shown below in conjunction with the attached Figure 1-Figure 9 The present invention is further described.

[0033] See attached Figure 1-Figure 9A sewage treatment flotation tank decontamination device comprises a scraper 1, a driving component, a jet cleaning component, an automatic air supply component and a vibration component. The scraper 1 can be slidably installed above the flotation tank 2, and the scraper 1 can scrape the scum on the surface of the flotation tank 2 to move when sliding. The driving component is connected to the scraper 1, and the scraper 1 is driven to slide above the flotation tank 2 by the driving component. The jet cleaning component is installed on the scraper 1, and the surface of the scraper 1 is cleaned by blowing air through the jet cleaning component. The automatic air supply component is connected to the jet cleaning component, and can automatically supply air to the jet cleaning component when the scraper 1 moves above the sludge area of ​​the flotation tank 2. The vibration component is connected to the scraper 1, and the scraper 1 is driven to vibrate through the vibration component when the jet cleaning component is running.

[0034] When in use, the entire device is installed on the flotation tank 2, and then the scraper 1 is driven to slide through the driving component. During the sliding process of the scraper 1, the scraper 1 will extend into the flotation tank 2 to drive the scum on the surface of the flotation tank 2 to move, thereby scraping it to the sludge area at the rear end to achieve dirt removal; and when the scraper 1 reaches the top of the sludge area, some scum may be adhered to the surface of the scraper 1. At this time, the surface of the scraper 1 can be cleaned by the jet cleaning component, and the automatic air supply component automatically supplies air to the jet cleaning component when the scraper 1 reaches the sludge area, thereby achieving a fully automated cleaning effect. When the jet cleaning component is running, it will also drive the vibration component to run, thereby causing the scraper 1 to shake, so that the scum on the surface of the scraper 1 can be further promoted to separate.

[0035] The driving assembly includes a sprocket 3, a chain 4, a connecting piece 5 and a motor 6. The sprocket 3 is rotatably installed on the flotation tank 2, and sprockets 3 are provided at both ends of the upper side of the flotation tank 2. At the same time, the two sprockets 3 are transmitted through the chain 4. The motor 6 is fixedly installed on the side of the flotation tank 2, and the motor 6 is coaxially connected to a sprocket 3 and can drive the sprocket 3 to rotate. The connecting piece 5 is connected to a link of the chain 4 and can move synchronously with the link. The scraper 1 is connected to the connecting piece 5 and can move synchronously with the connecting piece 5. In this way, it is only necessary to start the motor 6, and the motor 6 will drive the sprocket 3 to rotate, and then drive the chain 4 to move. The movement of the chain 4 will drive the scraper 1 to move. When the scraper 1 moves on the surface of the flotation tank 2 with the chain 4, the scraper 1 will extend into the flotation tank 2. Then, when the scraper 1 moves, it will drive the scum on the surface of the flotation tank 2 to move, thereby scraping it to the sludge area at the rear end.

[0036] Among them, in the driving component, there are two groups of sprockets 3 and chains 4, each group has two sprockets 3, and the two groups of sprockets 3 and chains 4 are symmetrically distributed on both sides of the flotation tank 2, and the sprockets 3 at corresponding positions are coaxially connected and keep rotating synchronously.

[0037] It should be noted that the connecting member 5 is composed of an angle plate 26 and a pin 27. The angle plate 26 is "L"-shaped. There are two pins 27, both fixed on one side of the angle plate 26, and the two pins 27 are respectively inserted into the two rotating shafts on the same link of the chain 4. The scraper 1 is connected to the other side of the angle plate 26. In this way, the scraper 1 can move synchronously with the chain 4.

[0038] The jet cleaning assembly includes a jet hood 7, a gas separation cavity 8 and an air supply pipe 9. The jet hood 7 is fixedly connected to the connecting piece 5. An opening is provided on the surface of the jet hood 7. One side of the scraper 1 extends from the opening into the jet hood 7. The gas separation cavity 8 is arranged in the jet hood 7, and the gas separation cavity 8 is arranged on the side of the jet hood 7 away from the scraper 1. An air outlet groove 10 is arranged in the gas separation cavity 8. The gas outlet groove 10 is arranged on the side of the scraper 1 away from the opening and is spaced from the scraper 1. Both sides of the gas outlet groove 10 are spaced from the corresponding sides of the gas separation cavity 8. The air supply pipe 9 is connected to the gas separation cavity 8. , and the air supply pipe 9 is connected with the side of the air outlet groove 10 away from the opening, a jet gap 11 is left between the surface of the scraper 1 and the inner wall of the jet hood 7, and the air outlet groove 10 is connected with the jet gap 11. In this way, it is only necessary to introduce compressed air into the air supply pipe 9 through the automatic air supply component, and then the air flow will enter the air distribution cavity 8 of the jet hood 7, and then enter the jet gap 11 from the air outlet groove 10 and finally be ejected from the opening of the jet hood 7. In this process, the gas will blow through the surface of the scraper 1, thereby blowing off the scum adhering to the surface of the scraper 1, thereby achieving the cleaning effect of the scraper 1.

[0039] The scraper 1 includes a hard part 28 and an elastic part 29. The hard part 28 is made of rigid material and installed in the jet hood 7. The elastic part 29 is made of elastic material and is located on the side of the scraper 1 away from the jet hood 7. In this way, the impact can be eliminated through elastic deformation, so that the scum can be scraped off better.

[0040] The automatic air supply component includes an air pump 12 and a connecting component. The air pump 12 is fixedly installed on the side of the flotation tank 2, and the power input end of the air pump 12 is coaxially connected to the rotating shaft of the sprocket 3, and the sprocket 3 can drive the air pump 12 to operate. The air outlet end of the air pump 12 is connected to the air supply pipe 9 through the connecting component, and the connecting component can pass the air of the air pump 12 into the air supply pipe 9 when the scraper 1 moves above the sludge area of ​​the flotation tank 2. In this way, when the sprocket 3 rotates, it will drive the air pump 12 to operate, and the air pump 12 will generate compressed air, which is then sent into the air supply pipe 9 through the connecting component. Among them, the connection between the air pump 12 and the rotating shaft of the sprocket 3 is equipped with a transmission, which can convert low-speed rotation into high-speed, thereby driving the air pump 12 to operate quickly to generate compressed air.

[0041] The connecting component includes a fixed disk 13, a rotating disk 14, an air inlet pipe 15, an air connection cavity 16 and an air outlet 17. The fixed disk 13 is fixedly installed on the inner wall of the air flotation tank 2 and is coaxially arranged with the rotating shaft of the sprocket 3. The rotating disk 14 is coaxial with the fixed disk 13, and the rotating disk 14 is rotatably installed on the side of the fixed disk 13. At the same time, the rotating disk 14 is rotatably sleeved on the rotating shaft of the sprocket 3, and the rotating disk 14 is tightly attached to the fixed disk 13. The air connection cavity 16 is opened on a side of the fixed disk 13 close to the rotating disk 14, the air inlet pipe 15 is fixedly installed on a side of the fixed disk 13 away from the rotating disk 14, and the air inlet pipe 15 One end is connected with the connecting air cavity 16, and the other end is connected with the air outlet end of the air pump 12. The connecting air cavity 16 is an arc shape coaxial with the fixed disk 13. The air outlet hole 17 is opened on the surface of the rotating disk 14, and when the rotating disk 14 rotates, the air outlet hole 17 can be connected with the connecting air cavity 16. At the same time, when the scraper 1 moves to the middle of the rotating disk 14, the air supply pipe 9 is connected with the air outlet hole 17. In this way, when the scraper 1 moves to the sludge area, the air supply pipe 9 will be connected with the air outlet hole 17. At this time, the compressed air generated by the air pump 12 will enter the connecting air cavity 16 through the air inlet pipe 15, and then be discharged from the air outlet hole 17 into the air supply pipe 9.

[0042] The connecting assembly also includes a second guide groove 18, which is arranged at the front side of the air outlet 17 along the rotation direction of the rotating disk 14, and when the air supply pipe 9 is connected with the air outlet 17, the end of the air supply pipe 9 enters the second guide groove 18, and since the air supply pipe 9 will rotate along the rotating shaft of the sprocket wheel 3, the rotating disk 14 will be driven to rotate through the second guide groove 18, and the second guide groove 18 will rotate to the upper side, at which time the air supply pipe 9 will move linearly again and move out of the second guide groove 18. In this process, since the air outlet 17 will always be connected with the connecting air cavity 16, it is ensured that the compressed air generated by the air pump 12 can be continuously injected into the air supply pipe 9 to ensure the cleaning effect.

[0043] It should be noted that when the air supply pipe 9 is aligned with the air outlet 17, the air outlet 17 and the connecting air cavity 16 are in a misaligned state. At this time, the rotating disk 14 completely blocks the connecting air cavity 16, so that compressed air can be formed in the connecting air cavity 16. Later, when the air supply pipe 9 drives the rotating disk 14 to rotate, the air outlet 17 will gradually be connected with the connecting air cavity 16. In addition, the air pump 12 itself has its own air storage tank, which can also store some compressed air, thereby ensuring sufficient airflow during jetting.

[0044] The connecting assembly further includes a first guide groove 19, which is provided on the surface of the rotating disk 14, and the first guide groove 19 and the second guide groove 18 are symmetrically arranged on both sides of the air outlet 17, and the second guide groove 18 is connected to the first guide groove 19. Under the action of the driving assembly, the air supply pipe 9 can slide from the first guide groove 19 until it is aligned with the air outlet 17, so that the air supply pipe 9 can slide into the first guide groove 19 conveniently.

[0045] The connecting component also includes a fixed limit block 20, a movable limit block 21 and a coil spring 22. The fixed limit block 20 is fixedly mounted on the edge of the fixed disk 13, and the movable limit block 21 is fixedly mounted on the edge of the rotating disk 14. A groove 23 is provided on the surface of the fixed disk 13 close to the rotating disk 14. The coil spring 22 is installed in the groove 23, and one end of the coil spring 22 is fixedly connected to the fixed disk 13, and the other end is fixedly connected to the rotating disk 14. At the same time, the rotating disk 14 rotates under the action of the coil spring 22 and drives the movable limit block 21 to be close to the fixed limit block 20. The movable limit block 2 When the air supply pipe 9 is aligned with the fixed stop block 20, the position of the air supply pipe 9 corresponds to the first guide groove 19, and can slide into the first guide groove 19 when the scraper 1 moves. In this way, when the air supply pipe 9 drives the rotating disk 14 to rotate through the second guide groove 18, the coil spring 22 will be stored synchronously. In this way, when the air supply pipe 9 rotates to separate from the second guide groove 18, the rotating disk 14 can be reset under the action of the coil spring 22, and return to the fixed position under the action of the fixed stop block 20 and the movable stop block 21, so as to facilitate the automatic docking when the air supply pipe 9 comes over next time.

[0046] The vibration assembly includes a tension spring 24, and the scraper 1 is rotatably installed in the jet cover 7. The tension spring 24 is connected to the scraper 1, and the scraper 1 can shake under the action of the tension spring 24. In this way, when jet cleaning is performed, the scraper 1 can be blown synchronously to shake, so that the scum adhered to the surface of the scraper 1 can fall off quickly.

[0047] The vibration assembly also includes a protective cover 25, which is rotatably installed at the opening of the jet hood 7. The end of the tension spring 24 away from the scraper 1 is connected to the protective cover 25, and the protective cover 25 covers the jet gap 11 under the action of the tension spring 24. In this way, when the scraper 1 is away from the sludge area, the protective cover 25 will cover the opening of the jet hood 7 under the action of the tension spring 24 to prevent scum from entering and ensure the smooth flow of the jet gap 11.

[0048] Therefore, the complete usage process is to first install the entire device on the flotation tank 2, then start the motor 6, the motor 6 will drive the sprocket 3 to rotate, and then drive the chain 4 to move, the movement of the chain 4 will drive the scraper 1 to move, when the scraper 1 moves on the surface of the flotation tank 2 with the chain 4, the scraper 1 will extend into the flotation tank 2, and then when the scraper 1 moves, it will drive the scum on the surface of the flotation tank 2 to move, thereby scraping it into the sludge area at the rear end.

[0049] Among them, when the scraper 1 moves to above the sludge area, the scraper 1 will first move in a straight line, and the air supply pipe 9 on its side will synchronously slide into the first guide groove 19 until it is connected with the air outlet 17. In the initial state, the first guide groove 19 and the second guide groove 18 are located on the lower side of the rotating shaft of the sprocket 3 and are horizontal, and the air outlet 17 is located directly below the rotating shaft of the sprocket 3. During the above working process, the rotation of the sprocket 3 will also drive the air pump 12 to operate, and the air outlet end of the air pump 12 is connected to the connecting air cavity 16 through the air inlet pipe 15. Therefore, the air of the air pump 12 will directly enter the connecting air cavity 16, and after the air supply pipe 9 is tightly attached to the second guide groove 18, the scraper 1 will drive the rotating disk 14 to rotate synchronously when following the chain 4 along the axial direction of the sprocket 3. In this process, the air outlet 17 will be connected to the connecting air cavity 16, so that the compressed air in the connecting air cavity 16 will enter the sub-cavity 8 of the jet hood 7 from the air supply pipe 9, and then enter the jet gap 11 from the air outlet groove 10 and push open the protective cover 25 to spray out. In this process, the gas will blow through the surface of the scraper 1, thereby blowing off the scum adhering to the surface of the scraper 1, thereby achieving the cleaning effect of the scraper 1.

[0050] As the scraper 1 continues to move with the chain 4, after the rotating disk 14 rotates a certain angle, the second guide groove 18 and the first guide groove 19 rotate to the upper side of the rotating shaft of the sprocket 3 and become horizontal. At this time, the scraper 1 continues to move in a straight line with the chain 4 and leaves the second guide groove 18, and the rotating disk 14 will reverse under the action of the coil spring 22 until the movable limit block 21 is tightly attached to the fixed limit block 20 until the next time the scraper 1 moves over, so that the air supply to the jet cleaning component can be continuously maintained automatically.

[0051] At the same time, when the airflow pushes open the protective cover 25, due to the action of the tension spring 24, the scraper 1 will continue to shake, which will cause the scraper 1 to vibrate, thereby further promoting the detachment of scum on the surface of the scraper 1, thereby further improving the cleaning effect of the scraper 1 surface.

[0052] In summary, during use, the jet cleaning component and the automatic air supply component can be used to achieve automatic cleaning when the scraper 1 reaches the sludge area above the flotation tank 2. In this way, it can be avoided that the scraper 1 brings the scum back again when moving to the flotation tank 2, thereby effectively ensuring the decontamination effect.

[0053] Furthermore, since the scum on the surface of the scraper 1 can be automatically cleaned, it is no longer necessary to frequently clean the surface of the scraper 1 manually, thereby reducing the frequency of maintenance. Moreover, cleaning can be achieved without stopping the machine, thereby ensuring the efficiency of dirt removal.

[0054] At the same time, when cleaning the surface of the scraper 1, the vibration component will also drive the scraper 1 to vibrate, which will promote the falling of scum adhering to the surface of the scraper 1, further improving the cleaning effect, and when the scraper 1 is away from the sludge area, that is, when it is separated from the automatic air supply component, the vibration component can also close the jet port of the jet cleaning component, playing a good protective role.

[0055] The above is only a preferred embodiment of the present invention, and does not limit the present invention in other forms. Any technician familiar with the profession may use the above disclosed technical content to change or modify it into an equivalent embodiment with equivalent changes. However, any simple modification, equivalent change and modification made to the above embodiment according to the technical essence of the present invention without departing from the technical solution of the present invention still belongs to the protection scope of the technical solution of the present invention.

Claims

1. A sewage treatment flotation tank decontamination device, characterized in that: include: A scraper (1), wherein the scraper (1) is slidably mounted above the flotation tank (2), and when the scraper (1) slides, it scrapes the scum on the surface of the flotation tank (2) to move; A driving assembly, which drives the scraper (1) to slide above the flotation tank (2); An air jet cleaning component, the air jet cleaning component being mounted on the scraper (1) and blowing air to clean the surface of the scraper (1) through the air jet cleaning component; An automatic air supply component, the automatic air supply component is connected to the jet cleaning component and automatically supplies air to the jet cleaning component when the scraper (1) moves above the sludge area of ​​the flotation tank (2); A vibration component, the vibration component is connected to the scraper (1), and the vibration component drives the scraper (1) to vibrate when the jet cleaning component is in operation; The driving assembly comprises a sprocket (3), a chain (4), a connecting piece (5) and a motor (6); the sprocket (3) is rotatably mounted on the flotation tank (2); there are two sprockets (3), and the two sprockets (3) are driven by the chain (4); the motor (6) is fixedly mounted on the side of the flotation tank (2); the motor (6) is coaxially connected to a sprocket (3) and drives the sprocket (3) to rotate; the connecting piece (5) is connected to a link of the chain (4) and moves synchronously with the link; the scraper (1) is connected to the connecting piece (5) and moves synchronously with the connecting piece (5); The jet cleaning assembly comprises a jet hood (7), an air dividing cavity (8) and an air supply pipe (9); the jet hood (7) is fixedly connected to the connecting piece (5); an opening is provided on the surface of the jet hood (7); one side of the scraper (1) is installed in the middle of the jet hood (7) from the opening; the air dividing cavity (8) is arranged in the jet hood (7), and the air dividing cavity (8) is arranged on a side of the jet hood (7) away from the scraper (1); the air dividing cavity (8) is provided with an air outlet groove (10); an air jet gap (11) is left between the surface of the scraper (1) and the inner wall of the jet hood (7); and the air outlet groove (10) is connected to the air jet gap (11); The automatic air supply component comprises an air pump (12) and a connecting component, wherein the air pump (12) is fixedly mounted on a side of the air flotation tank (2), and a power input end of the air pump (12) is coaxially connected to a rotating shaft of a sprocket wheel (3), and the sprocket wheel (3) drives the air pump (12) to operate, and an air outlet end of the air pump (12) is connected to an air supply pipe (9) via the connecting component, and when the scraper (1) moves above the sludge area of ​​the air flotation tank (2), the connecting component passes air from the air pump (12) into the air supply pipe (9); The connecting component comprises a fixed disk (13), a rotating disk (14), an air inlet pipe (15), an air connection cavity (16) and an air outlet hole (17); the fixed disk (13) is fixedly mounted on the inner wall of the air flotation tank (2) and is coaxially arranged with the rotating shaft of the sprocket wheel (3); the rotating disk (14) is coaxial with the fixed disk (13), and the rotating disk (14) is rotatably mounted on the side of the fixed disk (13); the rotating disk (14) is sleeved on the rotating shaft of the sprocket wheel (3), and the rotating disk (14) and the fixed disk (13) are in close contact; the air connection cavity (16) is opened An air inlet pipe (15) is fixedly mounted on a side of the fixed disk (13) close to the rotating disk (14) and on a side of the fixed disk (13) away from the rotating disk (14), and one end of the air inlet pipe (15) is communicated with the connecting air chamber (16), and the other end is communicated with the air outlet end of the air pump (12). An air outlet hole (17) is provided on the surface of the rotating disk (14), and when the rotating disk (14) rotates, the air outlet hole (17) is communicated with the connecting air chamber (16), and when the scraper (1) moves to the middle of the rotating disk (14), the air supply pipe (9) is communicated with the air outlet hole (17); The connecting assembly further comprises a second guide groove (18), the second guide groove (18) being arranged at the front side of the air outlet hole (17) along the rotation direction of the rotating disk (14), and when the air supply pipe (9) is connected to the air outlet hole (17), the end of the air supply pipe (9) enters the second guide groove (18); The communication component further comprises a first guide groove (19), the first guide groove (19) being formed on the surface of the rotating disk (14), and the first guide groove (19) and the second guide groove (18) being symmetrically arranged on both sides of the air outlet (17), and the second guide groove (18) and the first guide groove (19) being in communication.

2. A sewage treatment flotation tank decontamination device according to claim 1, characterized in that: The connecting component further comprises a fixed limit block (20), a movable limit block (21) and a coil spring (22); the fixed limit block (20) is fixedly mounted on the edge of the fixed disk (13); the movable limit block (21) is fixedly mounted on the edge of the rotating disk (14); a groove (23) is provided on the surface of the fixed disk (13) close to the rotating disk (14); the coil spring (22) is mounted in the groove (23); one end of the coil spring (22) is fixedly connected to the fixed disk (13); and the other end of the coil spring (22) is fixedly connected to the rotating disk (14); at the same time, the rotating disk (14) rotates under the action of the coil spring (22) and drives the movable limit block (21) to be close to the fixed limit block (20); when the movable limit block (21) is aligned with the fixed limit block (20), the air supply pipe (9) corresponds to the position of the first guide groove (19) and slides into the first guide groove (19) when the scraper (1) moves.

3. A sewage treatment flotation tank decontamination device according to claim 1, characterized in that: The vibration assembly comprises a tension spring (24); the scraper (1) is rotatably mounted in the jet cover (7); the tension spring (24) is connected to the scraper (1); and the scraper (1) shakes under the action of the tension spring (24).

4. A sewage treatment flotation tank decontamination device according to claim 3, characterized in that: The vibration assembly further comprises a protective cover (25), the protective cover (25) being rotatably mounted at the opening of the jet cover (7), one end of the tension spring (24) away from the scraper (1) being connected to the protective cover (25), and the protective cover (25) covers the jet gap (11) under the action of the tension spring (24).

Images