Defoaming device for aeration tank

Abstract

The utility model discloses a defoaming device for an aeration tank, which is characterized by comprising a scraper for dividing the aeration tank into a first area and a second area, and the scraper is driven by a driving component to reciprocate between the first area and the second area so as to push foams on the surface of the aeration tank; and the at least one spraying assembly is used for spraying foam accumulated in the first area and the second area. The defoaming device at least has the advantages that the defoaming efficiency is effectively improved, and the energy consumption is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of sewage treatment, and more specifically to an aeration tank defoaming device. Background Art

[0002] The description in this section merely provides background information related to the disclosure of the present utility model and does not constitute prior art.

[0003] In sewage treatment, aeration tanks often produce a large amount of foam. If the foam is not treated in time, the foam will overflow from the tank, causing serious pollution of the outer wall or external equipment, worsening the operating conditions, and affecting the treatment tank and the surrounding environment. Conventional defoaming treatments include spraying water, using high-speed spraying water or water droplets to break the foam, and another is to use chemical defoamers. Conventional defoaming spraying water cannot fundamentally defoam, the defoaming time is short, and the equipment needs to run 24 hours. Another way is to use chemical defoamers. Due to the large surface of the sewage treatment tank, dispersed spraying will use a large amount of chemical defoamers, which will have a greater impact on the effluent water quality of the sewage.

[0004] It should be noted that the above introduction to the technical background is only for the convenience of providing a clear and complete description of the technical solutions of the utility model and for the convenience of understanding by those skilled in the art. It cannot be considered that the above technical solutions are well known to those skilled in the art simply because these solutions are described in the background technology section of the utility model. Summary of the invention

[0005] The technical problem to be solved by the utility model is to provide an aeration tank defoaming device capable of realizing centralized defoaming, thereby effectively improving the defoaming efficiency and reducing energy consumption.

[0006] In order to solve the above technical problems, the utility model provides an aeration tank defoaming device, comprising: a scraper that divides the aeration tank into a first area and a second area, the scraper being driven by a driving component to reciprocate between the first area and the second area to push the foam on the surface of the aeration tank; and at least one spraying component that sprays the foam accumulated in the first area and the second area.

[0007] As further preferred, the defoaming device also includes a mounting plate and a first supporting assembly and a second supporting assembly mounted on the mounting plate, the scraper is mounted on the lower surface of the mounting plate, the scraper is located between the first supporting assembly and the second supporting assembly, and the spray assembly includes two, a first spray assembly mounted on the first supporting assembly and a second spray assembly mounted on the second supporting assembly.

[0008] As a further preference, a medicine storage barrel is installed on the mounting plate, and the first spray assembly and the second spray assembly both include a first pipe connected to the medicine storage barrel and a second pipe connected to the first pipe, and a plurality of nozzles are evenly distributed on the second pipe along its length direction.

[0009] As a further preference, the first support assembly and the second support assembly are respectively composed of two connecting parts to support the second pipe, one end of each connecting part is detachably fixed on the mounting plate, and the other end is provided with a V-shaped support seat, and the two ends of the second pipe are respectively placed in the V-shaped support seat.

[0010] As a further preferred embodiment, the medicine storage barrel is connected to the two first pipes through a third pipe, and a three-way valve is installed on the third pipe. The water inlet of the three-way valve is connected to the medicine storage barrel through a pump, the first water outlet of the three-way valve is connected to the first spray assembly, and the second water outlet of the three-way valve is connected to the second spray assembly.

[0011] As a further preferred embodiment, the driving assembly includes first rollers installed at both ends of the mounting plate, a driving motor installed on the bottom wall of the mounting plate, a first gear drivingly connected to the output shaft of the driving motor, and a second gear meshing with the first gear for transmission, a transmission shaft is passed through the second gear, and two of the first rollers are installed on the transmission shaft to be driven to rotate, and guide grooves matching the thickness of the first rollers are provided on the top walls of the two surrounding edges of the aeration tank.

[0012] As further preferred, each of the first rollers is also respectively meshed with a fourth roller, and the thickness of the fourth roller is adapted to the guide groove.

[0013] As a further preferred embodiment, limiters are installed at both ends of one of the guide grooves.

[0014] As further preferred, the defoaming device also includes a control unit and a timer. The driver, timer and limiter of the drive motor are electrically connected to the control unit respectively. The control unit controls the rotation of the drive motor according to the signals received from the limiter and the timer.

[0015] By means of the above technical solution, the beneficial effects of the utility model are as follows:

[0016] The utility model discloses an aeration tank defoaming device, by arranging a scraper in the aeration tank, the scraper divides the water area in the aeration tank into two parts, and can move back and forth to stir the foam in the aeration tank, so that the foam can be centrally processed, the defoaming efficiency is effectively improved, and the energy consumption is reduced. By mounting the scraper on a mounting plate, spraying components are respectively arranged on both sides of the scraper, so that unrestricted follow-up spraying can be achieved, and the manner of separately arranging the two sides can also avoid blind spots in spraying, so that the foam can be completely eliminated. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the structure of the utility model;

[0018] Figure 2 It is a schematic diagram of another viewing angle of the utility model;

[0019] Figure 3 It is a schematic diagram of the utility model embodying the first support assembly and the second support assembly;

[0020] Figure 4 It is a schematic diagram of the utility model embodying the bottom drive assembly of the mounting plate.

[0021] in:

[0022] 1. Aeration tank; 101. First area; 102. Second area; 103. Guide groove; 2. Mounting plate; 3. Scraper; 401. First pipeline; 402. Second pipeline; 403. Nozzle; 404. First spray assembly; 405. Second spray assembly; 5. Medicine storage barrel; 601. Connector; 602. V-shaped support seat; 603. First support assembly; 604. Second support assembly; 7. Three-way valve; 8. Drive assembly; 801. First roller; 802. Drive motor; 803. First gear; 804. Second gear; 805. Transmission shaft; 9. Third pipeline. DETAILED DESCRIPTION

[0023] 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 in 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.

[0024] It should be noted that in the description of the present invention, the terms "first", "second", etc. are only used for descriptive purposes and to distinguish similar objects. There is no order of precedence between the two, and they cannot be understood as indicating or implying relative importance. In addition, in the description of the present invention, unless otherwise specified, "plurality" means two or more.

[0025] See attached Figure 1-4, a defoaming device for an aeration tank 1 described in a preferred embodiment of the present invention comprises a mounting plate 2, a scraper 3 and at least one spraying assembly. In order to realize centralized treatment of foam in the aeration tank 1 and effectively improve defoaming efficiency, specifically: the scraper 3 of the present application is configured to divide the aeration tank 1 into a first area 101 and a second area 102, the scraper 3 is driven by a driving assembly 8 to reciprocate between the first area 101 and the second area 102 to push the foam on the surface of the aeration tank 1, the driving assembly 8 comprises a first roller 801 mounted on both ends of the mounting plate 2, a driving motor 802 mounted on the bottom wall of the mounting plate 2, a first gear 803 connected to the output shaft of the driving motor 802, and a second gear 804 meshing with the first gear 803 for transmission, a transmission shaft 805 is passed through the second gear 804, two first rollers 801 are mounted on the transmission shaft 805 to be driven to rotate, and a guide groove 103 adapted to the thickness of the first roller 801 is provided on the top wall of the two surrounding edges of the aeration tank 1.

[0026] The spray assembly is used to spray the foam accumulated in the first area 101 and the second area 102. Specifically, the spray assembly includes two, namely, the first spray assembly 404 corresponding to the first area 101 and the second spray assembly 405 corresponding to the second area 102. In order to support the first spray assembly 404 and the second spray assembly 405, a first support assembly 603 and a second support assembly 604 are also installed on the mounting plate 2. The scraper 3 is installed on the lower surface of the mounting plate 2. The scraper 3 is located between the first support assembly 603 and the second support assembly 604. The first spray assembly 404 is installed on the second support assembly 604, and the second spray assembly 405 is installed on the second support assembly 604. A medicine storage barrel 5 is installed on the mounting plate 2, and the first spray assembly 404 and the second spray assembly 405 both include a first pipe 401 connected to the medicine storage barrel 5 and a second pipe 402 connected to the first pipe 401, and a plurality of nozzles 403 are evenly distributed on the second pipe 402 along its length direction.

[0027] Specifically, the first support assembly 603 and the second support assembly 604 of the present application are respectively composed of two connecting members 601 to form a support for the second pipe 402. One end of each connecting member 601 is detachably fixedly mounted on the mounting plate 2, and a V-shaped support seat 602 is provided on the other end. The two ends of the second pipe 402 are respectively placed in the V-shaped support seat 602. The setting of the V-shaped support seat 602 can adapt to the placement of a variety of second pipes 402 with different diameters. The medicine storage barrel 5 is connected to the two first pipes 401 through the third pipe 9. A three-way valve 7 is installed on the third pipe 9. The water inlet of the three-way valve 7 is connected to the medicine storage barrel 5 through a pump. The first water outlet of the three-way valve 7 is connected to the first spray assembly 404, and the second water outlet of the three-way valve 7 is connected to the second spray assembly 405.

[0028] In order to ensure smoother operation, each of the first rollers 801 of the present application is also respectively meshed with a fourth roller, the thickness of the fourth roller is adapted to the guide groove 103 , and the fourth roller is mounted on the lower surface of the mounting plate 2 .

[0029] In the present application, limiters are installed at both ends of one of the guide grooves 103 to prevent collision with the surrounding edge.

[0030] The defoaming device also includes a control unit and a timer. The driver, timer and limiter of the drive motor 802 are electrically connected to the control unit respectively. The control unit controls the rotation of the drive motor 802 according to the received signals of the limiter and the timer. The present application can set the time of foam formation in advance and use a scraper to scrape the foam to one side, and use a defoaming agent to perform centralized defoaming in this area. The equipment does not need to run for 24 hours. The foam can be scraped to one side regularly according to the set time of foam formation and then defoamed uniformly.

[0031] The above-described embodiments are only preferred embodiments for fully illustrating the present utility model, and the protection scope of the present utility model is not limited thereto. Equivalent substitutions or changes made by technicians in the technical field on the basis of the present utility model are all within the protection scope of the present utility model. The protection scope of the present utility model shall be subject to the claims.

Claims

1. An aeration tank defoaming device, characterized in that: include: A scraper that divides the aeration tank into a first area and a second area, the scraper is driven by a driving assembly to reciprocate between the first area and the second area to push the foam on the surface of the aeration tank; at least one spray assembly that sprays the foam accumulated in the first area and the second area; the defoaming device also includes a mounting plate and a first support assembly and a second support assembly mounted on the mounting plate, the scraper is mounted on the lower surface of the mounting plate, the scraper is located between the first support assembly and the second support assembly, the spray assembly includes two, which is a first spray assembly mounted on the first support assembly and a second spray assembly mounted on the second support assembly; a medicine storage barrel is mounted on the mounting plate, the first spray assembly and the second spray assembly both include a first pipe connected to the medicine storage barrel and a second pipe connected to the first pipe, and a plurality of nozzles are evenly distributed on the second pipe along its length.

2. The aeration tank defoaming device according to claim 1, characterized in that: The first support assembly and the second support assembly are respectively composed of two connecting parts to support the second pipe. One end of each connecting part is detachably fixed on the mounting plate, and the other end is provided with a V-shaped support seat. The two ends of the second pipe are respectively placed in the V-shaped support seat.

3. The aeration tank defoaming device according to claim 1, characterized in that: The medicine storage barrel is connected to the two first pipes through a third pipe, and a three-way valve is installed on the third pipe. The water inlet of the three-way valve is connected to the medicine storage barrel through a pump, the first water outlet of the three-way valve is connected to the first spray assembly, and the second water outlet of the three-way valve is connected to the second spray assembly.

4. The aeration tank defoaming device according to claim 1, characterized in that: The driving assembly includes first rollers installed at both ends of the mounting plate, a driving motor installed on the bottom wall of the mounting plate, a first gear connected to the output shaft of the driving motor, and a second gear meshing with the first gear. A transmission shaft is passed through the second gear, and two first rollers are installed on the transmission shaft to be driven to rotate. Guide grooves matching the thickness of the first rollers are provided on the top walls of the two surrounding edges of the aeration tank.

5. The aeration tank defoaming device according to claim 4, characterized in that: Each of the first rollers is also meshed with a fourth roller, and the thickness of the fourth roller is adapted to the guide groove.

6. The aeration tank defoaming device according to claim 5, characterized in that: Limiters are installed at both ends of one of the guide grooves.

7. The aeration tank defoaming device according to claim 6, characterized in that: The defoaming device also includes a control unit and a timer. The driver, timer and limiter of the drive motor are electrically connected to the control unit respectively. The control unit controls the rotation of the drive motor according to the received signals from the limiter and the timer.

Images