Dissolved air flotation machine

Abstract

The utility model discloses a dissolved air flotation machine which comprises a tank body and a slag scraper fixed at the top of the tank body, a collecting tank is fixed on the side wall of the tank body, mounting grooves which are symmetrically distributed are formed in the opposite side walls of the collecting tank, and two sliding blocks which are symmetrically arranged are connected in the two mounting grooves through moving mechanisms. And extrusion plates are fixed to the opposite side walls of the two sliding blocks. After extrusion is completed, the extrusion plate moves reversely to drive the sliding block and the strip-shaped teeth to move, so that the gear rotates reversely to drive the discharging plate to rotate and be opened, the bottom of the discharging opening is inclined, compressed impurities can slide out of a collecting pool, the discharging plate does not need to be opened by personnel, and when the extrusion plate moves reversely to a certain distance, the discharging plate can be opened. And under the pulling force effect of a second spring, a sliding block and a strip-shaped tooth can move to the original position, a gear rotates in the forward direction, a discharging plate is driven to be rotationally closed, a discharging door can be automatically opened and closed, discharging is more convenient, and the working efficiency and the practicability of the device are improved.

Description

Technical Field

[0001] The utility model relates to the field of dissolved air flotation machines, and particularly to a dissolved air flotation machine. Background Technique

[0002] A dissolved air flotation machine is a water purification device that uses a new type of efficient dissolved air device - a microbubble generator to dissolve air into water instead of a traditional air-introducing device. A number of inclined tube groups are installed in the air flotation area of this device, and together with the box body, a slag scraping machine, a spiral discharging machine, etc., it forms a complete air flotation water purification system.

[0003] When the existing dissolved air flotation machine is in use, when discharging suspended matter through a slag scraping machine and a spiral discharging machine, the suspended matter and other impurities will be placed in the collection box. The impurities are not treated and have a large volume, resulting in a small storage space for collection. And after the collection is completed, manual opening of the collection box door is mostly required for discharging, resulting in inconvenient discharging, low automation degree, and low work efficiency. Therefore, there is an urgent need for a dissolved air flotation machine to solve the above problems. Content of the Utility Model

[0004] The purpose of the utility model is to provide a dissolved air flotation machine to solve the problems of small storage space and inconvenient discharging mentioned in the above background technique.

[0005] To achieve the above purpose, the utility model provides the following technical solution: A dissolved air flotation machine includes a pool body and a slag scraping machine fixed on the top of the pool body. A collection pool is fixed on the side wall of the pool body, and symmetrically distributed installation grooves are opened on the opposite side walls of the collection pool. Two symmetrically arranged sliders are connected in the two installation grooves through a moving mechanism. The opposite side walls of the two sliders are fixed with extrusion plates. A filter plate is fixed on the inner wall of the collection pool below the extrusion plate, and a guide rail is fixed on the top of the collection pool. The guide rail is connected with a sliding block through a first telescopic mechanism, and the sliding block is provided with a clamping mechanism. A discharge port is opened on the side wall of the collection pool, and a discharge plate is rotatably connected to the opposite side walls of the discharge port through a rotating shaft. One end of the rotating shaft penetrates through the side wall of the collection pool and is sleeved with a gear. A strip tooth is fixed on the side wall of the sliding block, and the gear is meshed with the strip tooth.

[0006] The clamping mechanism includes a clamping bar fixed on the side wall of the extrusion plate, and a limiting groove is opened at the top of the clamping bar. A fixing groove is opened on the sliding block, and a limiting rod is inserted through the top of the fixing groove. A fixing plate is fixed at the top of the limiting rod, and a second telescopic mechanism is connected to the bottom of the fixing plate. The clamping bar is adapted to the fixing groove.

[0007] The second telescopic mechanism includes a first spring sleeved on the side wall of the limiting rod, and the two ends of the first spring are respectively connected to the opposite side walls of the sliding block and the fixing plate.

[0008] The first telescopic mechanism includes a second spring inserted into the guide rail, and both ends of the second spring are respectively connected to the sliding block and the opposite side wall of the guide rail.

[0009] The moving mechanism includes a threaded rod inserted into one of the installation grooves, and both ends of the threaded rod are rotatably connected to the inner side wall of the installation groove. The threaded rod is screwed with the slider. A servo motor is fixed on the side wall of the collection pool, and the output end of the servo motor is fixed to the end of the threaded rod. A reflux mechanism is provided at the bottom of the collection pool.

[0010] The reflux mechanism includes a water pump fixed at the bottom of the collection pool, and a drain port is opened at the bottom of the collection pool. The drain port is connected to the water inlet end of the water pump through a first conduit. A water inlet is opened on the side wall of the pool body, and the inner wall of the water inlet is connected to the water outlet end of the water pump through a second conduit.

[0011] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0012] 1. For the dissolved air flotation machine of the present utility model, during use, the servo motor drives the threaded rod to rotate, driving the slider to slide and the extrusion plate to move to extrude the suspended impurities, reducing the volume of the suspended impurities and increasing the storage space of the collection pool; then, through the filter plate, dry-wet separation is formed, and the sewage will flow into the bottom of the collection pool, avoiding waste of sewage.

[0013] 2. For the dissolved air flotation machine of the present utility model, after the extrusion is completed, the extrusion plate moves in the reverse direction, driving the sliding block and the strip teeth to move, causing the gear to rotate reversely, driving the discharge plate to rotate and open. Since the bottom of the discharge port is inclined, the compressed impurities will slide out of the collection pool without the need for personnel to open the discharge plate. And when the extrusion plate moves in the reverse direction to a certain distance, under the pulling force of the second spring, the sliding block and the strip teeth will move back to their original positions, and the gear rotates forward, driving the discharge plate to rotate and close. The discharge door can be automatically opened and closed, making the discharging more convenient, improving the work efficiency and the practicability of the device. Description of the Drawings

[0014] Figure 1 is a front three-dimensional structural schematic diagram of a dissolved air flotation machine of the present utility model;

[0015] Figure 2 is Figure 1 an enlarged structural schematic diagram at A of

[0016] Figure 3 is a partial structural schematic diagram of a dissolved air flotation machine of the present utility model;

[0017] Figure 4 is a side three-dimensional structural schematic diagram of a dissolved air flotation machine of the present utility model;

[0018] Figure 5 isFigure 4 Schematic enlarged structure view at position B.

[0019] In the figure: 1, pool body; 2, slag scraper; 3, collection pool; 4, installation groove; 5, slider; 6, extrusion plate; 7, guide rail; 8, discharge port; 9, discharge plate; 10, gear; 11, strip teeth; 12, sliding block; 13, first spring; 14, second spring; 1501, threaded rod; 1502, servo motor; 1601, clamping strip; 1602, limiting groove; 1603, fixing groove; 1604, limiting rod; 1605, fixing plate; 17, water pump; 18, filter plate. Specific implementation mode

[0020] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described 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 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.

[0021] Please refer to Figures 1-5 , a dissolved air flotation machine provided by the present invention includes a pool body 1 and a slag scraper 2 fixed on the top of the pool body 1. A collection pool 3 is fixed on the side wall of the pool body 1. Symmetrically distributed installation grooves 4 are opened on the opposite side walls of the collection pool 3. Two symmetrically arranged sliders 5 are connected by a moving mechanism in the two installation grooves 3. Extrusion plates 6 are fixed on the opposite side walls of the two sliders 5. A filter plate 18 is fixed on the inner wall of the collection pool 3 below the extrusion plate 6. A guide rail 7 is fixed on the top of the collection pool 3. The guide rail 7 is connected to a sliding block 12 through a first telescopic mechanism. The sliding block 12 is provided with a clamping mechanism. A discharge port 8 is opened on the side wall of the collection pool 3. A discharge plate 9 is rotatably connected to the opposite side walls of the discharge port 8 through a rotating shaft. One end of the rotating shaft penetrates the side wall of the collection pool 3 and is sleeved with a gear 10. Strip teeth 11 are fixed on the side wall of the sliding block 12. The gear 10 is meshed with the strip teeth 11. The sliding of the slider 5 and the movement of the extrusion plate 6 will extrude suspended impurities, and then form a dry-wet separation through the filter plate 18, improving the storage space;

[0022] The clamping mechanism includes a clamping bar 1601 fixed to the side wall of the extrusion plate 6. A limiting groove 1602 is opened at the top of the clamping bar 1601. A fixing groove 1603 is opened on the sliding block 12. A limiting rod 1604 is inserted through the top of the fixing groove 1603. A fixing plate 1605 is fixed to the top of the limiting rod 1604. A second telescopic mechanism is connected to the bottom of the fixing plate 1605. The clamping bar 1601 is adapted to the fixing groove 1603. The bottom of the limiting rod 1604 is spherical. When the clamping bar 1601 fixed to the extrusion plate 6 moves into the fixing groove 1603, it will push up the limiting rod 1604. Under the action of the second telescopic mechanism, the spherical end of the limiting rod 1604 is inserted into the limiting groove 1602 to form a clamping connection.

[0023] The second telescopic mechanism includes a first spring 13 sleeved on the side wall of the limiting rod 1604. The two ends of the first spring 13 are respectively connected to the opposite side walls of the sliding block 12 and the fixing plate 1605. When the limiting rod 1604 rises, the first spring 13 gives a pulling force to the fixing plate 1605 at the top of the limiting rod 1604, facilitating the firm clamping connection between the limiting rod 1604 and the clamping bar 1601.

[0024] The first telescopic mechanism includes a second spring 14 inserted into the guide rail 7. The two ends of the second spring 14 are respectively connected to the opposite side walls of the sliding block 12 and the guide rail 7. Under the pulling force of the second spring 14, the limiting rod 1604 disengages from the fixing groove 1603 on the clamping bar 1601, and the sliding block 12 and the strip teeth 11 will move back to their original positions.

[0025] The moving mechanism includes a threaded rod 1501 inserted into one of the mounting grooves 4. The two ends of the threaded rod 1501 are respectively rotatably connected to the inner side walls of the mounting grooves 4. The threaded rod 1501 is screwed with the slider 5. A servo motor 1502 is fixed to the side wall of the collection tank 3. The output end of the servo motor 1502 is fixed to the end of the threaded rod 1501. A reflux mechanism is provided at the bottom of the collection tank 3. By driving the threaded rod 1501 to rotate by the servo motor 1502, the slider 5 slides and the extrusion plate 6 moves, facilitating the extrusion of suspended impurities and reducing the volume of suspended impurities.

[0026] The reflux mechanism includes a water pump 17 fixed to the bottom of the collection tank 3. A drain port is opened at the bottom of the collection tank 3. The drain port is connected to the water inlet end of the water pump 17 through a first conduit. A water inlet is opened on the side wall of the pool body 1. The inner wall of the water inlet is connected to the water outlet end of the water pump 17 through a second conduit. The water is refluxed to the inner wall of the pool body 1 through the water pump 17 to avoid waste of sewage.

[0027] Working principle: During use, the slag scraper 2 scrapes the suspended impurities in the pool body 1 into the collection tank 3. The servo motor 1502 drives the threaded rod 1501 to rotate, driving the slider 5 to slide and the extrusion plate 6 to move to extrude the suspended impurities, reducing the volume of the suspended impurities and increasing the storage space of the collection tank 3.

[0028] Then, a dry-wet separation is formed through the filter plate 18, and the sewage will flow into the bottom of the collection tank 3 and is refluxed to the inner wall of the tank body 1 by the water pump 17 to avoid waste of sewage.

[0029] When the extrusion is completed, the clamping strip 1601 fixed on the extrusion plate 6 will move into the fixing groove 1603, pushing up the limiting rod 1604. Under the action of the first spring 13, the spherical end of the limiting rod 1604 is inserted into the limiting groove 1602 to form a clamping connection.

[0030] The second spring 14 is a tension spring, which is easy to stretch but not easy to compress. After the extrusion is completed, the extrusion plate 6 moves in the reverse direction, driving the sliding block 12 and the strip teeth 11 to move, causing the gear 10 to rotate reversely, driving the discharge plate 9 to rotate and open. Since the bottom of the discharge port 8 is inclined, the compressed impurities will slide out of the collection tank 3, eliminating the need for personnel to open the discharge plate 9, making the discharging more convenient and the automation degree higher.

[0031] When the extrusion plate 6 moves in the reverse direction to a certain distance, under the pulling force of the second spring 14, the limiting rod 1604 disengages from the fixing groove 1603 on the clamping strip 1601, and the sliding block 12 and the strip teeth 11 will move back to their original positions. The gear 10 rotates forward, driving the discharge plate 9 to rotate and close, facilitating the next extrusion.

[0032] For those skilled in the art, it is obvious that the present utility model is not limited to the details of the above exemplary embodiments, and without departing from the spirit or basic characteristics of the present utility model, the present utility model can be implemented in other specific forms. Therefore, in any aspect, the embodiments should be regarded as exemplary and non-limiting. The scope of the present utility model is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present utility model. Any reference signs in the claims should not be regarded as limiting the claimed rights.

Claims

1. A dissolved air flotation machine, comprising a pool body (1) and a slag scraping machine (2) fixed on the top of the pool body (1), characterized in that: A collecting pool (3) is fixed to the side wall of the pool body (1). Symmetrically distributed mounting grooves (4) are formed in the opposite side walls of the collecting pool (3). Two symmetrically arranged sliders (5) are connected in the two mounting grooves (3) through a moving mechanism. An extrusion plate (6) is fixed to the opposite side walls of the two sliders (5). A filter plate (18) is fixed to the inner wall of the collecting pool (3) below the extrusion plate (6). A guide rail (7) is fixed to the top of the collecting pool (3). The guide rail (7) is connected to a sliding block (12) through a first telescopic mechanism. The sliding block (12) is provided with a clamping mechanism. A discharge port (8) is formed in the side wall of the collecting pool (3). A discharge plate (9) is rotatably connected to the opposite side walls of the discharge port (8) through a rotating shaft. One end of the rotating shaft penetrates through the side wall of the collecting pool (3) and is sleeved with a gear (10). A strip tooth (11) is fixed to the side wall of the sliding block (12). The gear (10) is meshed with the strip tooth (11).

2. The dissolved air flotation machine according to claim 1, characterized in that: The clamping mechanism includes a clamping strip (1601) fixed to the side wall of the extrusion plate (6). A limiting groove (1602) is formed at the top of the clamping strip (1601). A fixing groove (1603) is formed in the sliding block (12). A limiting rod (1604) is inserted through the top of the fixing groove (1603). A fixing plate (1605) is fixed to the top of the limiting rod (1604). A second telescopic mechanism is connected to the bottom of the fixing plate (1605). The clamping strip (1601) is adapted to the fixing groove (1603).

3. The dissolved air flotation machine according to claim 2, characterized in that: The second telescopic mechanism includes a first spring (13) sleeved on the side wall of the limiting rod (1604). The two ends of the first spring (13) are respectively connected to the opposite side walls of the sliding block (12) and the fixing plate (1605).

4. A dissolved air flotation machine according to claim 1, characterized in that: The first telescopic mechanism includes a second spring (14) inserted into the guide rail (7). The two ends of the second spring (14) are respectively connected to the opposite side walls of the sliding block (12) and the guide rail (7).

5. The dissolved air flotation machine according to claim 1, wherein: The moving mechanism includes a threaded rod (1501) inserted into one of the mounting grooves (4). The two ends of the threaded rod (1501) are rotatably connected to the inner side walls of the mounting grooves (4). The threaded rod (1501) is in threaded connection with the slider (5). A servo motor (1502) is fixed to the side wall of the collecting pool (3). The output end of the servo motor (1502) is fixed to the end of the threaded rod (1501). A reflux mechanism is arranged at the bottom of the collecting pool (3).

6. The dissolved air flotation machine according to claim 5, wherein: The reflux mechanism includes a water pump (17) fixed to the bottom of the collecting pool (3). A drain port is formed at the bottom of the collecting pool (3). The drain port is connected to the water inlet end of the water pump (17) through a first conduit. An inlet port is formed in the side wall of the pool body (1). The inner wall of the inlet port is connected to the water outlet end of the water pump (17) through a second conduit.

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