Aeration device for water treatment

Abstract

The utility model relates to the technical field of sewage treatment, in particular to an aeration device for water treatment, which comprises a multi-stage sedimentation tank and an aeration barrel, a plurality of sequentially lowered overflow plates are arranged in the multi-stage sedimentation tank, a wastewater feeding pipe is arranged at the lower end of the highest overflow plate, a first circulating hole is formed in the upper end of the lowest overflow plate in a penetrating manner, and the aeration barrel is arranged in the aeration barrel. The aeration barrel and the multi-stage sedimentation tank are fixedly arranged, a second circulation hole is formed in the side wall of the aeration barrel in a penetrating mode, the first circulation hole and the second circulation hole are formed in a penetrating mode, and an aeration mechanism is arranged in the aeration barrel; the aeration mechanism comprises an aeration pipe arranged at the bottom of the aeration barrel and a mixing and stirring mechanism arranged in the aeration barrel. Through multi-stage precipitation and efficient aeration stirring, suspended matters and organic matters in wastewater can be effectively removed, and the wastewater treatment efficiency and effect are remarkably improved.

Description

Technical Field

[0001] The utility model relates to the technical field of sewage treatment, in particular to an aeration device for water treatment. Background Art

[0002] Aeration is a method of creating intensive contact between air and water. Its purpose is to dissolve oxygen from the air into the water or to expel unwanted gases and volatile substances from the water into the air. In other words, it promotes the exchange of substances between gas and liquid. It also has other important functions, such as mixing and agitation. Oxygen from the air is transferred into the water through aeration, and oxygen is transferred from the gas phase to the liquid phase via mass transfer. The double-membrane theory proposed by Lewis and Whitman is currently the most widely used theory of mass transfer and diffusion. In the field of wastewater treatment technology, the use of aerators to aerate wastewater is a crucial step. They ensure thorough mixing of wastewater and increase the contact area between wastewater and oxygen, thereby promoting biodegradation of wastewater.

[0003] Since sewage contains a large amount of impurities, the aeration heads of existing sewage treatment devices are very prone to blockage during the aeration process, and the pool water needs to be frequently drained for replacement and maintenance. The repair efficiency is low and a lot of time and labor are wasted. Utility Model Content

[0004] The utility model provides an aeration device for water treatment in order to solve the problems of the prior art.

[0005] The purpose of the utility model can be achieved through the following technical solutions: A water treatment aeration device, comprising:

[0006] A multi-stage sedimentation tank, wherein a plurality of overflow plates are arranged in descending order, a wastewater feed pipe is arranged at the lower end of the highest overflow plate, and a first flow hole is arranged through the upper end of the lowest overflow plate;

[0007] An aeration barrel is fixedly arranged with the multi-stage sedimentation tank and has a second flow hole penetratingly arranged on the side wall. The first flow hole and the second flow hole are arranged through-connected. An aeration mechanism is arranged inside the aeration barrel, and the aeration mechanism includes an aeration pipe arranged at the bottom of the aeration barrel and a mixing and stirring mechanism arranged inside the aeration barrel.

[0008] As a further improvement, the mixing and stirring mechanism includes a stirring motor fixedly arranged at the upper end of the aeration barrel, a stirring shaft rotatably arranged inside the aeration barrel, and a stirring blade fixedly arranged on the stirring shaft, and the upper end of the stirring shaft is transmission-connected to the output end of the stirring motor.

[0009] As a further improvement, a rotating seat is provided at the bottom end of the aeration barrel, the lower end of the stirring shaft is rotatably provided in the rotating seat and an air intake channel is provided inside the seat, the lower end pipe of the air intake channel is connected to the air intake pipe, and a plurality of air outlet holes are provided on both sides of the stirring blade, and the air outlet holes and the air intake channel are connected.

[0010] As a further improvement, the stirring blades are provided in two groups.

[0011] As a further improvement, a boost pump is provided on the air intake pipe.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] 1. This utility model can effectively remove suspended solids and organic matter in wastewater through multi-stage sedimentation and efficient aeration and stirring. It is suitable for water treatment facilities of various sizes and significantly improves the efficiency and effect of wastewater treatment. Through optimized aeration and stirring design, the device can save energy consumption, reduce operating costs, and improve system stability and treatment capacity.

[0014] 2. The agitator shaft of the present invention is internally provided with an air inlet channel, the lower end of which is connected to an air inlet pipe via a pipe, for introducing external air into the agitator shaft. The agitator blade is fixed to the agitator shaft, and a plurality of air outlet holes are provided on both sides of the agitator blade. The air outlet holes are connected to the air inlet channel, allowing air to be discharged from the air inlet channel through the air outlet holes, thereby increasing the dissolved oxygen in the water. At the same time, the rotation of the agitator blade also promotes the mixing of air and wastewater, improving the wastewater treatment effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural diagram of the utility model;

[0016] Figure 2 This is a schematic diagram of the internal structure of the aeration barrel of the utility model;

[0017] Figure 3 This is a schematic diagram of the internal structure of the multi-stage sedimentation tank of the utility model;

[0018] Figure 4 This is a schematic structural diagram of the stirring shaft and stirring blades of the utility model.

[0019] In the figure, 1. multi-stage sedimentation tank; 11. overflow plate; 12. wastewater feed pipe; 13. first flow hole; 2. aeration barrel; 21. second flow hole; 22. rotating seat; 3. aeration mechanism; 31. aeration pipe; 32. mixing and stirring mechanism; 321. stirring motor; 322. stirring shaft; 3221. air inlet channel; 3222. air inlet pipe; 323. stirring blade; 3231. air outlet; 41. booster pump. DETAILED DESCRIPTION

[0020] In the description of the present invention, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the present invention.

[0021] In the description of this utility model, it should be noted that, unless otherwise specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integral connections. Those skilled in the art will understand the specific meanings of these terms in this utility model based on the specific circumstances.

[0022] Below with reference to the embodiment and the attached Figures 1 to 4 , the technical solution of the utility model is further elaborated.

[0023] Example 1

[0024] An aeration device for water treatment, comprising:

[0025] A multi-stage sedimentation tank 1 is provided with a plurality of overflow plates 11 arranged in descending order, a wastewater feed pipe 12 is provided at the lower end of the highest overflow plate 11, and a first flow hole 13 is provided through the upper end of the lowest overflow plate 11;

[0026] The aeration barrel 2 is fixed to the multi-stage sedimentation tank 1 and has a second flow hole 21 extending through the side wall. The first flow hole 13 and the second flow hole 21 are connected. An aeration mechanism 3 is provided inside the aeration barrel 2. The aeration mechanism 3 includes an aeration pipe 31 provided at the bottom of the aeration barrel 2 and a mixing and stirring mechanism 32 provided inside the aeration barrel 2.

[0027] like Figures 1 to 4As shown, during actual use of the present invention, wastewater enters the multi-stage sedimentation tank 1 through the wastewater feed pipe 12, and passes through the sedimentation layers formed by each overflow plate 11 in turn to achieve preliminary solid-liquid separation. The wastewater that has undergone sedimentation treatment flows into the first flow hole 13 at the upper end of the lowest overflow plate 11, and then enters the aeration barrel 2 through the first flow hole 13 and the second flow hole 21 that are connected. In the aeration barrel 2, the aeration pipe 31 injects air into the wastewater, and the mixing and stirring mechanism 32 stirs the wastewater at the same time, so that the air and wastewater are fully mixed, thereby promoting the growth of microorganisms in the water and accelerating the degradation of organic matter. The dissolved oxygen content of the wastewater that has undergone aeration treatment is increased, and the organic matter is effectively degraded, thereby achieving water purification.

[0028] This utility model can effectively remove suspended matter and organic matter in wastewater through multi-stage sedimentation and efficient aeration and stirring. It is suitable for water treatment facilities of various sizes and significantly improves the efficiency and effect of wastewater treatment. Through optimized aeration and stirring design, the device can save energy consumption, reduce operating costs, and at the same time improve the stability and treatment capacity of the system.

[0029] As a further preferred embodiment, the mixing and stirring mechanism 32 includes a stirring motor 321 fixedly arranged at the upper end of the aeration barrel 2, a stirring shaft 322 rotatably arranged inside the aeration barrel 2, and a stirring blade 323 fixedly arranged on the stirring shaft 322, and the upper end of the stirring shaft 322 is transmission-connected to the output end of the stirring motor 321.

[0030] As a further preferred embodiment, a rotating seat 22 is provided at the bottom end of the aeration barrel 2, the lower end of the stirring shaft 322 is rotatably provided in the rotating seat 22 and an air intake channel 3221 is provided inside the rotating seat, the lower end pipe of the air intake channel 3221 is connected to the air intake pipe 3222, and a plurality of air outlet holes 3231 are provided on both sides of the stirring blade 323, and the air outlet holes 3231 and the air intake channel 3221 are connected.

[0031] Specifically, an air inlet channel 3221 is provided within the stirring shaft 322. The lower end of the channel is connected to an air inlet pipe 3222 via a pipe for introducing external air into the stirring shaft 322. A stirring blade 323 is fixed to the stirring shaft 322 and has a plurality of air outlet holes 3231 on either side. The air outlet holes 3231 are connected to the air inlet channel 3221, allowing air to be discharged from the air inlet channel 3221 through the air outlet holes 3231, thereby increasing the dissolved oxygen in the water. The rotation of the stirring blade 323 also promotes the mixing of air and wastewater, improving the wastewater treatment effect.

[0032] As a further preferred embodiment, two groups of stirring blades 323 are provided.

[0033] As a further preferred embodiment, a boost pump 41 is provided on the air intake pipe 3222 .

[0034] The above describes in detail the preferred embodiments of the present invention. It should be understood that those skilled in the art can make numerous modifications and variations based on the concepts of the present invention without inventive effort. Therefore, any technical solutions that can be derived by those skilled in the art based on the concepts of the present invention through logical analysis, reasoning, or limited experimentation based on the existing technology should be within the scope of protection defined by the claims.

Claims

1. A water treatment aeration device, characterized in that: include: A multi-stage sedimentation tank (1), wherein a plurality of overflow plates (11) are provided in the multi-stage sedimentation tank (1), wherein a wastewater feed pipe (12) is provided at the lower end of the highest overflow plate (11), and a first flow hole (13) is provided through the upper end of the lowest overflow plate (11); An aeration barrel (2), the aeration barrel (2) is fixedly arranged with the multi-stage sedimentation tank (1) and a second circulation hole (21) is provided through the side wall, the first circulation hole (13) and the second circulation hole (21) are provided through, an aeration mechanism (3) is provided inside the aeration barrel (2), and the aeration mechanism (3) includes an aeration pipe (31) provided at the bottom of the aeration barrel (2) and a mixing and stirring mechanism (32) provided inside the aeration barrel (2).

2. The aeration device for water treatment according to claim 1, characterized in that: The mixing and stirring mechanism (32) comprises a stirring motor (321) fixedly arranged at the upper end of the aeration barrel (2), a stirring shaft (322) rotatably arranged inside the aeration barrel (2), and a stirring blade (323) fixedly arranged on the stirring shaft (322); the upper end of the stirring shaft (322) is transmission-connected to the output end of the stirring motor (321).

3. The aeration device for water treatment according to claim 2, characterized in that: A rotating seat (22) is provided at the bottom end of the aeration barrel (2), the lower end of the stirring shaft (322) is rotatably arranged in the rotating seat (22) and an air inlet channel (3221) is provided inside the rotating seat, the lower end of the air inlet channel (3221) is connected to an air inlet pipe (3222), a plurality of air outlet holes (3231) are provided on both sides of the stirring blade (323), and the air outlet holes (3231) and the air inlet channel (3221) are connected.

4. A water treatment aeration device according to claim 2 or 3, characterized in that: The stirring blades (323) are provided in two groups.

5. The aeration device for water treatment according to claim 3, characterized in that: The air inlet pipe (3222) is provided with a booster pump (41).

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