Air floatation device for wastewater treatment

Abstract

The utility model discloses an air floatation device for wastewater treatment, which belongs to the technical field of wastewater treatment and comprises an air floatation device main body, a slag scraping device is mounted at the top of the air floatation device main body, and two stirring mechanisms are arranged on the inner wall of the air floatation device main body; according to the conveying device, the swing mechanism is arranged, the output shaft of the motor rotates to drive the fixing rod and the connecting plate to rotate, so that the second belt wheel is driven to rotate, the second belt wheel rotates to drive the first belt wheel and the rotating block to rotate, and then the connecting rod is driven to rotate; according to the device provided by the invention, a plurality of dissolved air releasers are driven to swing, so that the dissolved air releasers can change the angle of spraying bubbles, the bubbles can be sprayed in multiple directions, the bubbles are sprayed more uniformly, the situation that some impurities cannot float on the water surface due to the fact that the bubbles cannot be attached to the impurities is avoided, and the wastewater purification effect is further improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of wastewater treatment, and in particular relates to an air flotation device for wastewater treatment. Background Art

[0002] Wastewater can be divided into domestic wastewater and industrial wastewater, and wastewater treatment is to use physical, chemical and biological methods to treat wastewater, purify wastewater, reduce pollution, and even achieve wastewater recycling and reuse, and make full use of water resources. In the process of wastewater treatment, flotation devices are usually used to clean and purify impurities in wastewater.

[0003] Before the flotation device purifies wastewater, flocculants and coagulants must be added to the wastewater, and the wastewater is stirred to cause flocculation reaction. After that, bubbles are generated through the dissolved air releaser, so that the bubbles drive the impurities in the wastewater to float to the water surface, so that they can be cleaned up by the scraper device. However, the existing flotation device can only perform one-way stirring during stirring, which may cause the wastewater to be insufficiently mixed with the flocculant and coagulant, thereby reducing the reaction effect of the flocculation reaction, and further affecting the effect of wastewater purification. In addition, the dissolved air releaser of the existing flotation device is fixed, so the range of bubbles generated is limited, which may cause impurities in some places to be unable to be wrapped by bubbles and brought to the water surface, thereby reducing the effect of wastewater purification. Utility Model Content

[0004] The utility model aims to solve the problems that the dissolved air releaser of the prior art flotation device has a limited range of bubbles and the stirring effect of the flotation device is not good enough, and proposes a flotation device for wastewater treatment.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A flotation device for wastewater treatment, comprising a flotation device body, a scraper device is installed on the top of the flotation device body, two stirring mechanisms are arranged on the inner wall of the flotation device body, two fixed seats are connected to one side of the flotation device body, and one side of the two fixed seats is connected to the same dissolved air tank, the outer wall of the dissolved air tank is connected to a first delivery pipe, the other end of the first delivery pipe extends into the flotation device body and is provided with a swing mechanism, and one side of the flotation device body is connected to two water inlet pipes;

[0007] The swing mechanism includes a second conveying pipe, one end of the second conveying pipe is connected to one end of the first conveying pipe and is rotatably connected, the outer wall of the second conveying pipe is connected to multiple dissolved gas releasers, the outer wall of the second conveying pipe is connected to two fixed sleeves, and the same rotating rod is rotatably connected between the two fixed sleeves, the outer wall of the rotating rod is provided with a sliding groove, the inner wall of the sliding groove is slidably connected to a connecting rod, and one end of the connecting rod is connected to a rotating block.

[0008] As a further description of the above technical solution:

[0009] A first pulley is connected to the bottom of the rotating block, a support block is rotatably connected to the bottom of the first pulley, the bottom of the support block is connected to the inner wall of the main body of the air flotation device, one side of the first pulley is transmission-connected to a transmission belt, and one side of the transmission belt is transmission-connected to a second pulley.

[0010] As a further description of the above technical solution:

[0011] The stirring mechanism includes a fixed plate, one side of which is connected to the inner wall of the main body of the flotation device, and one side of the two fixed plates is connected to the same first partition, both sides of the first partition are connected to the inner wall of the main body of the flotation device, one side of the first partition is connected to a second partition, and the bottom of the second partition is connected to the inner wall of the main body of the flotation device.

[0012] As a further description of the above technical solution:

[0013] A motor is connected to the top of the fixed plate, and the motor output shaft passes through the top of the fixed plate and is connected to a fixed rod, and the other end of the fixed rod is connected to a connecting plate, a plurality of movable grooves are provided on the outer wall of the fixed rod, sliding grooves are provided on both sides of the inner wall of the movable groove, a movable block is slidably connected to the inner wall of the movable groove, and sliders are connected to both sides of the movable block, and the outer wall of the slider is slidably connected to the inner wall of the sliding groove.

[0014] As a further description of the above technical solution:

[0015] A second stirring blade is connected to one side of the moving block, and the first stirring blade is connected to both sides of the second stirring blade. A reciprocating thread groove is provided on the top of the second stirring blade, and two rotating rods are rotatably connected to the top of the connecting plate. The outer wall of the rotating rod is provided with multiple sections of reciprocating threads and is threadedly connected to the inner wall of the reciprocating thread groove.

[0016] As a further description of the above technical solution:

[0017] One end of the rotating rod is connected to a gear, and one side of the two gears is meshed with a same gear ring, one side of the gear ring is connected to the bottom of the fixed plate, and the bottom of the connecting plate is connected to one side of the second pulley.

[0018] In summary, due to the adoption of the above technical solution, the beneficial effects of the utility model are:

[0019] 1. In the utility model, a swing mechanism is provided, and the fixed rod and the connecting plate are driven to rotate by the rotation of the motor output shaft, thereby driving the second pulley to rotate, and the rotation of the second pulley drives the first pulley and the rotating block to rotate, and then drives the connecting rod to rotate, and the rotation of the connecting rod drives the fixed sleeve and the second conveying pipe to swing, thereby driving multiple dissolved air releasers to swing, so that the dissolved air releaser can change the angle of spraying bubbles, so that it can spray in multiple directions, making the bubble spray more uniform, avoiding some impurities from being unable to float to the water surface due to not being able to attach to the bubbles, thereby improving the effect of wastewater purification.

[0020] 2. In the utility model, a stirring mechanism is provided, and the second stirring blade and the first stirring blade are driven to rotate by the rotation of the motor output shaft. When the second stirring blade rotates, the gear can be driven to rotate around the gear ring through the rotating rod, so that the gear rotates and drives the rotating rod to rotate, thereby driving the second stirring blade and the first stirring blade to move up and down, and then stirring the wastewater in the vertical direction, so that the wastewater can be more fully mixed with the flocculant and the coagulant aid, thereby accelerating the reaction rate of the flocculation reaction, improving the reaction effect of the flocculation reaction, and also further improving the effect of wastewater purification. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0022] Figure 2 This is a schematic diagram of the main cross-sectional structure of the air flotation device of the utility model;

[0023] Figure 3 This is a schematic diagram of the structure of the swing mechanism of the utility model;

[0024] Figure 4 This is a schematic diagram of the structure of the stirring mechanism of the utility model;

[0025] Figure 5 For this utility model Figure 4 The enlarged structural diagram of part A in the middle;

[0026] Figure 6 This is a schematic diagram of the gear ring structure of the utility model.

[0027] Legend: 1. Air flotation device body; 2. First baffle; 3. First conveying pipe; 4. Swinging mechanism; 401. Dissolved air releaser; 402. Second conveying pipe; 403. Fixed sleeve; 404. First pulley; 405. Driving belt; 406. Support block; 407. Rotating rod; 408. Slide groove; 409. Rotating block; 410. Connecting rod; 411. Second pulley; 5. Stirring mechanism; 501. Motor; 502. Fixed plate; 503. Fixed rod; 504. Rotating rod; 505. Slide groove; 506. Sliding block; 507. Moving block; 508. Moving groove; 509. First stirring blade; 510. Second stirring blade; 511. Reciprocating thread groove; 512. Connecting plate; 513. Gear; 514. Gear ring; 6. Dissolved air tank; 7. Water inlet pipe; 8. Slag scraping device; 9. Fixed seat; 10. Second baffle. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0029] See also Figure 1-Figure 6 The utility model provides a technical solution: an air flotation device for wastewater treatment, comprising an air flotation device body 1, a scraper device 8 is installed on the top of the air flotation device body 1, two stirring mechanisms 5 are arranged on the inner wall of the air flotation device body 1, two fixing seats 9 are connected to one side of the air flotation device body 1, and one side of the two fixing seats 9 is connected to the same dissolved air tank 6, the outer wall of the dissolved air tank 6 is connected to a first conveying pipe 3, the other end of the first conveying pipe 3 extends into the air flotation device body 1 and is provided with a swing mechanism 4, and one side of the air flotation device body 1 is connected to two water inlet pipes 7;

[0030] The swing mechanism 4 includes a second conveying pipe 402, one end of which is connected to one end of the first conveying pipe 3 and is rotatably connected. The outer wall of the second conveying pipe 402 is connected to multiple dissolved air releasers 401. The outer wall of the second conveying pipe 402 is connected to two fixed sleeves 403, and the same rotating rod 407 is rotatably connected between the two fixed sleeves 403. The outer wall of the rotating rod 407 is provided with a slide groove 408, and the inner wall of the slide groove 408 is slidably connected to a connecting rod 410. One end of the connecting rod 410 is connected to a rotating block 409, and the bottom of the rotating block 409 is connected to a first pulley 404, and the bottom of the first pulley 404 is rotatably connected to a support block 406, and the bottom of the support block 406 is connected to the inner wall of the air flotation device body 1. One side of the first pulley 404 is transmission-connected to a transmission belt 405, and one side of the transmission belt 405 is transmission-connected to a second pulley 411.

[0031] The implementation method is specifically as follows: by setting a swing mechanism 4, the fixed rod 503 is driven to rotate by the output shaft of the motor 501, the fixed rod 503 is driven to rotate by the rotation, the connecting plate 512 is driven to rotate by the rotation of the connecting plate 512, the second pulley 411 is driven to rotate by the second pulley 411 through the transmission belt 405, the first pulley 404 is driven to rotate by the rotation of the rotating block 409, the rotating block 409 is driven to rotate by the connecting rod 410, and the connecting rod 410 is made to slide in the slide groove 408, so that the fixed sleeve 403 and the second conveying pipe 402 are driven to swing by the rotating rod 407, and then the multiple dissolved air releasers 401 are driven to swing, so that the dissolved air releaser 401 can change the angle of spraying bubbles, so that it can spray in multiple directions, so that the bubbles are sprayed more evenly, and some impurities are prevented from floating to the water surface due to not being able to attach to the bubbles, thereby improving the effect of wastewater purification.

[0032] The stirring mechanism 5 includes a fixed plate 502, one side of the fixed plate 502 is connected to the inner wall of the air flotation device body 1, and one side of the two fixed plates 502 is connected to the same first partition plate 2, both sides of the first partition plate 2 are connected to the inner wall of the air flotation device body 1, one side of the first partition plate 2 is connected to the second partition plate 10, and the bottom of the second partition plate 10 is connected to the inner wall of the air flotation device body 1, the top of the fixed plate 502 is connected to the motor 501, the output shaft of the motor 501 passes through the top of the fixed plate 502 and is connected to the fixed rod 503, and the other end of the fixed rod 503 is connected to the connecting plate 512, the outer wall of the fixed rod 503 is provided with a plurality of moving grooves 508, both sides of the inner wall of the moving groove 508 are provided with sliding grooves 505, and the inner wall of the moving groove 508 is slidably connected with a moving block 50 7. Both sides of the moving block 507 are connected with sliders 506, and the outer wall of the slider 506 is slidably connected to the inner wall of the sliding groove 505. One side of the moving block 507 is connected with the second stirring blade 510, and both sides of the second stirring blade 510 are connected with the first stirring blade 509. A reciprocating thread groove 511 is provided on the top of the second stirring blade 510, and two rotating rods 504 are rotatably connected to the top of the connecting plate 512. The outer wall of the rotating rod 504 is provided with multiple sections of reciprocating threads and is threadedly connected to the inner wall of the reciprocating thread groove 511. One end of the rotating rod 504 is connected with a gear 513, and one side of the two gears 513 is meshed with the same gear ring 514, one side of the gear ring 514 is connected to the bottom of the fixed plate 502, and the bottom of the connecting plate 512 is connected to one side of the second pulley 411.

[0033] The specific implementation method is as follows: by setting a stirring mechanism 5, the fixed rod 503 is driven to rotate by the output shaft of the motor 501, and the fixed rod 503 is driven to rotate by the rotation, so that the wastewater can be stirred, and the second stirring blade 510 can drive the rotating rod 504 to rotate while the second stirring blade 510 rotates, and the rotating rod 504 drives the gear 513 to rotate around the gear ring 514, so that the gear 513 rotates by meshing with the gear ring 514, and the rotation of the gear 513 drives the rotating rod 504 to rotate. Since the rotating rod 504 is provided with multiple sections of reciprocating threads, the reciprocating thread groove 511 opened on the second stirring blade 510 drives the second stirring blade 510 and the first stirring blade 509 to move up and down, so that the wastewater can be stirred in the vertical direction, so that the wastewater can be mixed with the flocculant and the coagulant aid more fully, thereby accelerating the reaction rate of the flocculation reaction, improving the reaction effect of the flocculation reaction, and also further improving the effect of wastewater purification.

[0034] Working principle: When in use, wastewater enters the main body 1 of the flotation device through the water inlet pipe 7, and then flocculants and coagulants are added to the wastewater, and the motor 501 is started. The output shaft of the motor 501 rotates to drive the fixed rod 503 to rotate, and drives the second stirring blade 510 and the first stirring blade 509 to rotate, so that the wastewater can be stirred in the horizontal direction. At the same time, the rotating rod 504 will drive the gear 513 to rotate around the gear ring 514, so that the gear 513 and the rotating rod 504 rotate, and then drive the second stirring blade 510 and the first stirring blade 509 to move up and down. , so that the first stirring blade 509 can stir the wastewater in the vertical direction, thereby improving the stirring effect. At the same time, the fixed rod 503 can drive the second pulley 411 to rotate through the connecting plate 512. The rotation of the second pulley 411 drives the first pulley 404 and the rotating block 409 to rotate, and drives the connecting rod 410 to rotate, and at the same time makes the connecting rod 410 slide in the slide groove 408, so that the fixed sleeve 403 and the second conveying pipe 402 can be driven to swing through the rotating rod 407, thereby driving the multiple dissolved air releasers 401 to swing, thereby increasing the spraying range of the bubbles.

[0035] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A flotation device for wastewater treatment, comprising a flotation device body (1), characterized in that: A scraping device (8) is installed on the top of the air flotation device body (1); two stirring mechanisms (5) are arranged on the inner wall of the air flotation device body (1); two fixing seats (9) are connected to one side of the air flotation device body (1); and one side of the two fixing seats (9) is connected to the same dissolved air tank (6); the outer wall of the dissolved air tank (6) is connected to a first conveying pipe (3); the other end of the first conveying pipe (3) extends into the air flotation device body (1) and is provided with a swinging mechanism (4); and two water inlet pipes (7) are connected to one side of the air flotation device body (1); The swing mechanism (4) comprises a second conveying pipe (402), one end of the second conveying pipe (402) is connected to one end of the first conveying pipe (3) and is rotatably connected, the outer wall of the second conveying pipe (402) is connected to a plurality of dissolved gas releasers (401), the outer wall of the second conveying pipe (402) is connected to two fixed sleeves (403), and the two fixed sleeves (403) are rotatably connected to the same rotating rod (407), the outer wall of the rotating rod (407) is provided with a sliding groove (408), the inner wall of the sliding groove (408) is slidably connected to a connecting rod (410), and one end of the connecting rod (410) is connected to a rotating block (409).

2. The air flotation device for wastewater treatment according to claim 1, characterized in that: The bottom of the rotating block (409) is connected to a first pulley (404), the bottom of the first pulley (404) is rotatably connected to a support block (406), the bottom of the support block (406) is connected to the inner wall of the air flotation device body (1), one side of the first pulley (404) is transmission-connected to a transmission belt (405), and one side of the transmission belt (405) is transmission-connected to a second pulley (411).

3. The air flotation device for wastewater treatment according to claim 1, characterized in that: The stirring mechanism (5) comprises a fixed plate (502), one side of the fixed plate (502) is connected to the inner wall of the air flotation device body (1), and one side of the two fixed plates (502) is connected to the same first baffle (2), both sides of the first baffle (2) are connected to the inner wall of the air flotation device body (1), one side of the first baffle (2) is connected to a second baffle (10), and the bottom of the second baffle (10) is connected to the inner wall of the air flotation device body (1).

4. The flotation device for wastewater treatment according to claim 3, characterized in that: The top of the fixed plate (502) is connected to a motor (501), the output shaft of the motor (501) passes through the top of the fixed plate (502) and is connected to a fixed rod (503), and the other end of the fixed rod (503) is connected to a connecting plate (512), a plurality of movable grooves (508) are provided on the outer wall of the fixed rod (503), sliding grooves (505) are provided on both sides of the inner wall of the movable groove (508), a movable block (507) is slidably connected to the inner wall of the movable groove (508), and sliding blocks (506) are connected to both sides of the movable block (507), and the outer wall of the sliding block (506) is slidably connected to the inner wall of the sliding groove (505).

5. The flotation device for wastewater treatment according to claim 4, characterized in that: A second stirring blade (510) is connected to one side of the moving block (507), and both sides of the second stirring blade (510) are connected to the first stirring blade (509). A reciprocating thread groove (511) is provided at the top of the second stirring blade (510). The top of the connecting plate (512) is rotatably connected to two rotating rods (504), and the outer wall of the rotating rod (504) is provided with a plurality of reciprocating threads and is threadably connected to the inner wall of the reciprocating thread groove (511).

6. The air flotation device for wastewater treatment according to claim 5, characterized in that: One end of the rotating rod (504) is connected to a gear (513), and one side of the two gears (513) is meshed with a same gear ring (514), one side of the gear ring (514) is connected to the bottom of the fixed plate (502), and the bottom of the connecting plate (512) is connected to one side of the second pulley (411).

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