Carbon dioxide trapping device for aeration tank
By designing a carbon dioxide capture device in the aeration tank, the aerating structure and stirring structure are used to react carbon dioxide with alkali liquid and calcium chloride to form precipitation, the problem of inability to effectively capture carbon dioxide in the prior art is solved, and the carbon dioxide concentration after sewage treatment is achieved is achieved.
Patent Information
- Application Number
- CN202420975176.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-08
- Publication Date
- 2025-04-29
- Estimated Expiration
- 2034-05-08
AI Technical Summary
The existing aeration tank cannot effectively capture the carbon dioxide in the pool water during sewage treatment, resulting in the carbon dioxide concentration in the treated sewage that cannot meet the emission standards.
A carbon dioxide capture device for aeration tank is designed. Through the aeration structure, a second pump machine, a cross pipe and a stirring structure, the alkali liquid and calcium chloride liquid are sprayed into the aeration tank to promote the reaction of carbon dioxide and alkali liquid to form sodium carbonate, and a carbonate precipitation is formed through stirring, and the treated water is finally discharged through filtration.
The carbon dioxide concentration of sewage in the aeration tank is effectively reduced, the emission standards are met, and the reaction efficiency is improved through the stirring structure to ensure that the carbon dioxide and the reactants are fully mixed.
Smart Images
Figure CN222809306U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of aeration tanks, in particular to a carbon dioxide capture device for an aeration tank. Background Art
[0002] The aeration tank uses the activated sludge method to treat sewage. The aeration tank provides a certain sewage retention time to meet the oxygen required by aerobic microorganisms and the mixing conditions for the sewage and activated sludge to fully contact. The aeration tank is mainly composed of three parts: the tank body, the aeration system, and the inlet and outlet. The tank body is generally built with reinforced concrete, and the plane shape can be rectangular, square, or circular.
[0003] When treating sewage, the existing aeration tank is unable to convert and capture the carbon dioxide in the pool water, resulting in the carbon dioxide concentration in the treated sewage failing to meet the emission standards. Based on the existing technical deficiencies, the utility model designs a carbon dioxide capture device for an aeration tank. Utility Model Content
[0004] In view of the deficiencies of the prior art, the utility model provides an aeration tank carbon dioxide capture device, which has the advantages of converting and capturing carbon dioxide in the aeration tank.
[0005] The utility model provides the following technical solutions: a carbon dioxide capture device for an aeration tank, comprising a mounting base plate, an aeration tank is arranged on the top of the mounting base plate, three support plates are arranged at the bottom of the aeration tank, the three support plates are fixedly connected to the mounting base plate, a stirring structure is arranged inside the aeration tank, an aeration structure is arranged on the top of the mounting base plate, a second pump is arranged on the top of the mounting base plate, and a cross pipe is arranged at the bottom of the inner cavity of the aeration tank; the aeration structure comprises a fan, a blowing pipe is arranged on the top of the fan, a first pump is arranged on the top of the fan, a first connecting pipe is arranged on the top of the first pump; a third connecting pipe is arranged on the top of the second pump.
[0006] As a preferred technical solution of the utility model, the stirring structure includes a cross plate, a rotating tube is rotatably installed inside the cross plate, and a first straight gear is sleeved on the outer surface of the rotating tube.
[0007] As a preferred technical solution of the utility model, a sleeve is rotatably installed inside the rotating tube, a fourth connecting tube is sleeved on the bottom of the sleeve, and the fourth connecting tube is connected to the cross tube.
[0008] As a preferred technical solution of the utility model, four stirring rods are installed on the outer surface of the rotating tube, and stirring hands are installed at one end of the bottom of the four stirring rods.
[0009] As a preferred technical solution of the utility model, a fixing rod is installed on the top of the cross plate, a motor is installed inside the fixing rod, and a second gear is installed on the outer surface of the output shaft of the motor.
[0010] As a preferred technical solution of the utility model, the first connecting pipe is connected to the blowing pipe, one end of the blowing pipe is connected to the sleeve by sleeve connection, and the third connecting pipe is connected to the cross pipe.
[0011] As a preferred technical solution of the utility model, a filtering structure is arranged on the top of the mounting base plate, and the filtering structure includes a filtering box, and four second connecting pipes are installed on the top of the filtering box, and the four second connecting pipes are connected to the aeration tank, and a drain outlet is installed on one side of the outer surface of the filtering box.
[0012] Compared with the prior art, the utility model has the following beneficial effects:
[0013] 1. The carbon dioxide capture device of an aeration tank is connected to an alkali solution pool through a gasification structure, a second pump, a cross pipe, and a stirring structure. When treating sewage in the aeration tank, the first pump is connected to an alkali solution pool through a water pipe. After starting the fan and the first pump, wind and alkali solution are finally ejected from the hole of the cross pipe through the blowing pipe and the fourth connecting pipe. At this time, the sewage mixture in the aeration tank is stirred by starting the stirring structure, so that the carbon dioxide in the sewage is mixed with the alkali solution to produce sodium carbonate. After standing and settling, the second pump is connected to a calcium chloride solution pool through a water pipe. After starting the second pump, the calcium chloride liquid is ejected from the hole of the cross pipe through the third connecting pipe. The stirring structure is started again to mix the sodium carbonate in the sewage with the calcium chloride solution to form carbonate precipitation. After standing and settling, the carbonate precipitation is at the bottom of the aeration tank. At this time, the carbon dioxide concentration in the sewage is reduced, and it can be filtered through a filter box and discharged from a drain outlet. When the water is drained, the aeration tank can be cleaned, thereby achieving the conversion and capture of carbon dioxide in the aeration tank;
[0014] 2. The aeration tank carbon dioxide capture device has a stirring structure. By starting the motor, its output shaft can drive the second gear to rotate. Since the outer surface of the second gear is meshed with the outer surface of the first spur gear, the first spur gear can drive the rotating tube to rotate, thereby driving the four stirring rods to rotate, so that the stirring hand can stir the sewage mixture in the aeration tank, so that the carbon dioxide and the reactants are fully mixed, thereby improving the reaction efficiency. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 This is a schematic diagram of the appearance structure of the utility model;
[0016] Figure 2 This is a schematic diagram of the filtering structure of the utility model;
[0017] Figure 3 This is a schematic diagram of the structure of the third connecting pipe of the utility model;
[0018] Figure 4 This is a schematic diagram of the stirring structure of the utility model.
[0019] In the figure: 1. installation base plate; 2. aeration tank; 3. aeration structure; 31. fan; 32. blow pipe; 33. first pump; 34. first connecting pipe; 4. filtering structure; 41. filter box; 42. second connecting pipe; 43. drain outlet; 5. support plate; 6. second pump; 61. third connecting pipe; 7. cross pipe; 8. stirring structure; 81. cross plate; 82. rotating pipe; 83. first straight gear; 84. sleeve; 85. fourth connecting pipe; 86. stirring rod; 87. stirring hand; 88. fixing rod; 89. motor; 810. second gear. DETAILED DESCRIPTION
[0020] 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.
[0021] See also Figure 1-4 A carbon dioxide capture device for an aeration tank comprises a mounting base plate 1, an aeration tank 2 is arranged on the top of the mounting base plate 1, three support plates 5 are arranged at the bottom of the aeration tank 2, the three support plates 5 are fixedly connected to the mounting base plate 1, a stirring structure 8 is arranged inside the aeration tank 2, an aeration structure 3 is arranged on the top of the mounting base plate 1, a second pump 6 is arranged on the top of the mounting base plate 1, and a cross pipe 7 is arranged at the bottom of the inner cavity of the aeration tank 2; the aeration structure 3 comprises a fan 31, a blowing pipe 32 is arranged on the top of the fan 31, a first pump 33 is arranged on the top of the fan 31, a first connecting pipe 34 is arranged on the top of the first pump 33; a third connecting pipe 61 is arranged on the top of the second pump 6.
[0022] See also Figure 4 The stirring structure 8 includes a cross plate 81, a rotating tube 82 is rotatably mounted inside the cross plate 81, and a first straight gear 83 is sleeved on the outer surface of the rotating tube 82. A sleeve 84 is rotatably mounted inside the rotating tube 82, and a fourth connecting tube 85 is sleeved on the bottom of the sleeve 84, and the fourth connecting tube 85 is connected to the cross tube 7. Four stirring rods 86 are mounted on the outer surface of the rotating tube 82, and a stirring hand 87 is mounted on one end of the bottom of the four stirring rods 86. A fixing rod 88 is mounted on the top of the cross plate 81, and a motor 89 is mounted inside the fixing rod 88, and a second gear 810 is mounted on the outer surface of the output shaft of the motor 89.
[0023] By starting the motor 89, its output shaft can drive the second gear 810 to rotate. Since the outer surface of the second gear 810 is meshed with the outer surface of the first spur gear 83, the first spur gear 83 can drive the rotating tube 82 to rotate, thereby driving the four stirring rods 86 to rotate, so that the stirring hand 87 can stir the sewage mixture in the aeration tank 2, so that the carbon dioxide and the reactants are fully mixed, thereby improving the reaction efficiency.
[0024] See also Figure 1-3 The first connecting pipe 34 is connected to the blowing pipe 32, one end of the blowing pipe 32 is connected to the sleeve 84 by sleeve connection, and the third connecting pipe 61 is connected to the cross pipe 7. A filter structure 4 is arranged on the top of the installation base plate 1, and the filter structure 4 includes a filter box 41. Four second connecting pipes 42 are installed on the top of the filter box 41. The four second connecting pipes 42 are connected to the aeration tank 2, and a drain port 43 is installed on one side of the outer surface of the filter box 41.
[0025] After the sewage in the aeration tank 2 is treated, it enters the filter box 41 through the second connecting pipe 42 . After being filtered by the filter box 41 , the carbonate precipitate is filtered in the aeration tank 2 , and the treated water is discharged through the drain port 43 .
[0026] Working principle: when an aeration tank carbon dioxide capture device is used, in the initial state, first, sewage is discharged into the aeration tank 2, and then the first pump 33 is connected to the alkali liquid pool through a water pipe. After the fan 31 and the first pump 33 are started, the wind and the alkali liquid are finally sprayed out from the hole of the cross pipe 7 through the blowing pipe 32 and the fourth connecting pipe 85. At this time, by starting the motor 89, the output shaft of the motor 89 can drive the second gear 810 to rotate. Since the outer surface of the second gear 810 is meshed with the outer surface of the first straight gear 83, the first straight gear 83 can drive the rotating tube 82 to rotate, thereby driving the four stirring rods 86 to rotate, so that the stirring hand 87 can be used to rotate the aeration tank 2. The sewage mixture is stirred to fully mix the carbon dioxide with the reactants, and sodium carbonate is generated after mixing. After standing and settling, the second pump 6 is connected to the calcium chloride solution pool through a water pipe. After starting the second pump 6, the calcium chloride liquid is sprayed out from the hole of the cross pipe 7 through the third connecting pipe 61. The stirring structure 8 is started again to mix the sodium carbonate in the sewage with the calcium chloride solution to form a carbonate precipitate. After standing, the carbonate precipitates at the bottom of the aeration tank 2. After the sewage in the aeration tank 2 is treated, it enters the filter box 41 through the second connecting pipe 42. After being filtered by the filter box 41, the carbonate precipitate is filtered in the aeration tank 2, and the treated water is discharged through the drain port 43.
[0027] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. An aeration tank carbon dioxide capture device, comprising a mounting base plate (1), characterized in that: An aeration tank (2) is arranged on the top of the installation base plate (1), three support plates (5) are arranged on the bottom of the aeration tank (2), the three support plates (5) are fixedly connected to the installation base plate (1), a stirring structure (8) is arranged inside the aeration tank (2), an aeration structure (3) is arranged on the top of the installation base plate (1), a second pump (6) is arranged on the top of the installation base plate (1), and a cross pipe (7) is arranged at the bottom of the inner cavity of the aeration tank (2); The air filling structure (3) comprises a fan (31), a blowing pipe (32) is arranged on the top of the fan (31), a first pump (33) is arranged on the top of the fan (31), and a first connecting pipe (34) is arranged on the top of the first pump (33); A third connecting pipe (61) is provided on the top of the second pump (6).
2. The aeration tank carbon dioxide capture device according to claim 1, characterized in that: The stirring structure (8) comprises a cross plate (81), a rotating tube (82) is rotatably mounted inside the cross plate (81), and a first straight gear (83) is sleeved on the outer surface of the rotating tube (82).
3. The aeration tank carbon dioxide capture device according to claim 2, characterized in that: A sleeve (84) is rotatably mounted inside the rotating tube (82), a fourth connecting tube (85) is sleeved on the bottom of the sleeve (84), and the fourth connecting tube (85) is in communication with the cross tube (7).
4. The aeration tank carbon dioxide capture device according to claim 2, characterized in that: Four stirring rods (86) are mounted on the outer surface of the rotating tube (82), and stirring hands (87) are mounted at one end of the bottom of the four stirring rods (86).
5. The aeration tank carbon dioxide capture device according to claim 2, characterized in that: A fixing rod (88) is installed on the top of the cross plate (81), a motor (89) is installed inside the fixing rod (88), and a second gear (810) is installed on the outer surface of the output shaft of the motor (89).
6. The aeration tank carbon dioxide capture device according to claim 1, characterized in that: The first connecting pipe (34) is in communication with the blowing pipe (32), one end of the blowing pipe (32) is sleeve-connected to the sleeve (84), and the third connecting pipe (61) is in communication with the cross pipe (7).
7. The aeration tank carbon dioxide capture device according to claim 1, characterized in that: A filter structure (4) is arranged on the top of the installation base plate (1), the filter structure (4) comprising a filter box (41), four second connecting pipes (42) are installed on the top of the filter box (41), the four second connecting pipes (42) are connected to the aeration tank (2), and a drainage port (43) is installed on one side of the outer surface of the filter box (41).