Aeration disc assembly and suction type circulating aerator

Abstract

The aeration disc assembly comprises aeration discs, the aeration discs are funnel-shaped, each aeration disc is provided with a plurality of through air breaking holes, the number of the aeration discs is two, the aeration discs are oppositely installed together, the ends, with the large inner diameters, of the two aeration discs are in contact connection, and the ends, with the large inner diameters, of the two aeration discs are in contact connection. The two aeration discs are combined into a top shape, the aeration cavity is arranged between the two aeration discs, the MBBR fillers are filled in the aeration cavity, and the MBBR fillers and more air breaking holes enable more bubbles and larger contact area between the bubbles and sewage, so that the aeration effect is better, the oxygen retention time is prolonged, and the oxygen content in water is increased.

Description

Technical Field

[0001] The utility model relates to the technical field of industrial wastewater treatment devices, in particular to an aeration disc component and a suction type circulation aerator. Background Art

[0002] Aerators are mainly used in the aeration stage of aerobic tanks in industrial wastewater treatment. Through continuous and normal aeration, they can reduce maintenance workload, reduce operating and maintenance costs, and make the dissolved oxygen value at the sewage outlet of the aerobic tank meet national environmental protection requirements, thereby ensuring the normal discharge of industrial wastewater.

[0003] The air outlet of the aerator may be clogged due to problems with the composition of sewage quality or scaling, causing the aerator to be unable to vent air normally and thus be completely damaged, or increase the maintenance workload and operating costs. In addition, the sludge at the bottom of the aerobic pool may enter the aerator inlet pipe through the aerator outlet due to improper installation, or the negative pressure generated at the bottom of the aerator during operation may suck some entangled objects at the bottom of the pool into the aerator, thereby blocking the aerator outlet channel, resulting in a reduction in the aerator's air output or even completely blocking the aerator. In addition, the aeration splashes generated during the actual aeration process are too concentrated and too large, which reduces the oxygen residence time and the oxygen content in the water, so that the dissolved oxygen at the outlet of the aerobic pool does not meet the relevant technical requirements.

[0004] Therefore, in order to solve this problem, a Chinese patent with the authorization announcement number CN219259707U discloses a suction-type circulating aerator. This solution includes a connecting pipe, one end of which extends into the water pool, and the other end of which is connected to an external air pipe; the connecting pipe includes a main pipe and a connecting threaded head, and the connecting threaded head is installed on the main pipe; an anti-hanging plate, at least one of which is installed on the connecting pipe and is located in the direction of one end of the connecting pipe extending into the water pool; the anti-hanging plate includes a supporting inner pipe, a connecting outer pipe and an anti-hanging shaft; the anti-hanging shaft also has multiple anti-hanging teeth, an aeration plate, and the aeration plate is installed on the connecting pipe and close to the direction of the connecting threaded head; in summary, the device is not only structurally designed, but also simple to operate and easy to maintain, and can effectively expand the splash area, that is, the aeration area, and compared with the aerator of traditional design, its operating energy consumption is lower; therefore, it is suitable for industry promotion. However, the aeration effect of the aeration plate in this solution is still weak, and the bubbles that burst out are still large in volume and small in number.

[0005] Therefore, those skilled in the art are committed to developing an aeration disc assembly and a suction-type circulation aerator with good aeration effect. Summary of the invention

[0006] In view of the above-mentioned defects of the prior art, the technical problem to be solved by the utility model is to provide an aeration disc assembly and a suction-type circulation aerator with good aeration effect.

[0007] To achieve the above-mentioned purpose, the utility model provides an aeration plate assembly, including an aeration plate, the aeration plate is funnel-shaped, the aeration plate is provided with a plurality of broken air holes running through it, two aeration plates are provided and relatively installed together, the ends of the two aeration plates with larger inner diameters are in contact and connected, an aeration cavity is provided between the two aeration plates, and the aeration cavity is filled with a plurality of MBBR fillers.

[0008] MBBR filler is a microbial carrier used in the MBBR process. It is mainly used to provide a suitable environment for the growth of microorganisms. It adopts a scientific formula and integrates a variety of trace elements that are conducive to the rapid attachment and growth of microorganisms into the polymer material according to the different properties of sewage. It is modified and constructed through a special process. It has the advantages of large specific surface area, good hydrophilicity, high biological activity, fast biofilm formation, good treatment effect and long service life.

[0009] Furthermore, the volume occupied by all the MBBR fillers is 1 / 3 to 1 / 4 of the volume of the aeration chamber.

[0010] Furthermore, the aeration plate also has reinforcing guide ribs, and the reinforcing guide ribs are arranged on the outer surface of the aeration plate.

[0011] Furthermore, the reinforcing guide ribs are provided in a plurality of spiral shapes, and the plurality of reinforcing guide ribs are arranged in a spiral shape.

[0012] Furthermore, the plurality of air holes are evenly arranged from the center to the periphery of the aeration plate.

[0013] Furthermore, the apertures of the plurality of air-breaking holes gradually decrease from the center to the outside of the aeration plate.

[0014] The utility model also provides a suction-type circulating aerator, comprising a connecting pipe, an anti-hanging plate and a negative pressure stirring plate, wherein the anti-hanging plate and the negative pressure stirring plate are alternately sleeved on the connecting pipe, and also comprises the above-mentioned aeration plate assembly, wherein the aeration plate assembly is sleeved on the upper end of the connecting pipe and is located above the anti-hanging plate and the negative pressure stirring plate.

[0015] The beneficial effects of the utility model are as follows: the aeration plate assembly of the utility model comprises an aeration plate, the aeration plate is funnel-shaped, the aeration plate is provided with a plurality of broken air holes running through it, the aeration plate is provided with two and relatively mounted together, the ends with larger inner diameters of the two aeration plates are in contact and connected, so that the two aeration plates are combined into a gyroscope shape, an aeration cavity is provided between the two aeration plates, the aeration cavity is filled with a plurality of MBBR fillers, the MBBR fillers and more broken air holes result in more bubbles, and the contact area between the bubbles and the sewage is larger, so that the aeration effect is better, the oxygen residence time is increased, and the oxygen content in the water is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of the aeration disc assembly of the utility model;

[0017] Figure 2 It is a top view of the structure of the aeration disc assembly of the utility model;

[0018] Figure 3 yes Figure 2 Sectional view at AA;

[0019] Figure 4 It is a structural schematic diagram of the suction type circulating aerator of the utility model. DETAILED DESCRIPTION

[0020] The present invention is further described below in conjunction with the accompanying drawings and embodiments. It should be noted that in the description of the present invention, the terms "upper", "lower", "left", "right", "inner", "outer", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, which 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 manner, and therefore cannot be understood as a limitation on the present invention. The terms "first", "second", "third", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0021] Embodiment 1, as Figures 1 to 4 As shown, an aeration plate assembly includes an aeration plate 3, which is funnel-shaped and provided with a plurality of broken air holes 32 therethrough. Two aeration plates 3 are provided and relatively mounted together, and the ends of the two aeration plates 3 with larger inner diameters are in contact and connected, so that the two aeration plates are combined into a gyroscope shape, and an aeration cavity 34 is provided between the two aeration plates 3, and the aeration cavity 34 is filled with a plurality of MBBR fillers 35. The MBBR filler and more broken air holes result in more bubbles, and a larger contact area between the bubbles and the sewage, so that the aeration effect is better, the oxygen residence time is increased, and the oxygen content in the water is increased.

[0022] Furthermore, the volume occupied by the entire MBBR filler 35 is 1 / 3 to 1 / 4 of the volume of the aeration chamber 34, which maintains a balance between the rising speed of bubbles and the breaking of bubbles.

[0023] The aeration plate 3 also has reinforced guide ribs 33, and the reinforced guide ribs 33 are arranged on the outer surface of the aeration plate 3; further, the reinforced guide ribs 33 are provided with a plurality of spirally shaped ones, and the plurality of reinforced guide ribs 33 are arranged in a spiral shape. In actual use, this design is to strengthen the structural strength of the aeration plate 3 while also achieving diversion and guiding, so that when the liquid flow passes through the reinforced guide ribs 33, it is guided by the spiral distribution thereof, thereby further improving the diffusion range of the water flow passing therethrough and reducing the concentration of water splashes.

[0024] The plurality of air-breaking holes 32 are evenly arranged from the center to the periphery of the aeration plate 3 , and the apertures of the plurality of air-breaking holes 32 gradually decrease from the inside to the outside, so as to facilitate breaking more bubbles.

[0025] A suction-type circulating aerator comprises a connecting pipe 1, an anti-hanging plate 2 and a negative pressure stirring plate 4, wherein the anti-hanging plate 2 and the negative pressure stirring plate 4 are alternately sleeved on the connecting pipe 1, and further comprises the above-mentioned aeration plate assembly, wherein the aeration plate assembly is sleeved on the upper end of the connecting pipe 1 and is located above the anti-hanging plate 2 and the negative pressure stirring plate 4. The other components except the aeration plate assembly are the same as the technical scheme of a suction-type circulating aerator disclosed in the Chinese patent with authorization announcement number CN219259707U, and are not described in detail here. The structure is reasonably designed, and the operation is simple and easy to maintain. The water splash area, that is, the aeration area, can be effectively expanded, and the operating energy consumption is lower than that of the aerator with traditional design; therefore, it is suitable for industry promotion.

[0026] The preferred specific embodiments of the utility model are described in detail above. It should be understood that ordinary technicians in this field can make many modifications and changes based on the concept of the utility model without creative work. Therefore, all technical solutions that can be obtained by technicians in this technical field based on the concept of the utility model through logical analysis, reasoning or limited experiments on the basis of the existing technology should be within the scope of protection determined by the claims.

Claims

1. An aeration plate assembly, comprising an aeration plate (3), wherein the aeration plate (3) is funnel-shaped, and the aeration plate (3) is provided with a plurality of air holes (32) passing through the aeration plate (3), characterized in that: Two aeration plates (3) are provided and installed relatively together, and the ends of the two aeration plates (3) with larger inner diameters are in contact and connected, and an aeration cavity (34) is provided between the two aeration plates (3), and the aeration cavity (34) is filled with a plurality of MBBR fillers (35).

2. The aeration disc assembly according to claim 1, characterized in that: The volume occupied by the entire MBBR filler (35) is 1 / 3 to 1 / 4 of the volume of the aeration chamber (34).

3. The aeration disc assembly according to claim 1, characterized in that: The aeration plate (3) further comprises a reinforcing guide rib (33), wherein the reinforcing guide rib (33) is arranged on the outer surface of the aeration plate (3).

4. The aeration disc assembly according to claim 3, characterized in that: The reinforcing guide ribs (33) are provided in a plurality of spiral shapes, and the plurality of reinforcing guide ribs (33) are arranged in a spiral shape.

5. The aeration disc assembly according to claim 1, characterized in that: The plurality of air holes (32) are evenly arranged from the center of the aeration plate (3) toward the periphery.

6. The aeration disc assembly according to claim 5, characterized in that: The apertures of the plurality of air-breaking holes (32) gradually decrease from the center of the aeration plate (3) to the outside.

7. A suction-type circulation aerator, comprising a connecting pipe (1), an anti-hanging plate (2) and a negative pressure stirring plate (4), wherein the anti-hanging plate (2) and the negative pressure stirring plate (4) are alternately sleeved on the connecting pipe (1), characterized in that: It also includes an aeration plate assembly as described in any one of claims 1 to 6, wherein the aeration plate assembly is sleeved on the upper end of the connecting pipe (1) and is located above the anti-hanging plate (2) and the negative pressure stirring plate (4).

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