Stable and efficient nano ceramic aeration disc

Abstract

The utility model provides a kind of stable and efficient nanometer ceramic aeration disc, belong to aeration equipment field.The aeration disc includes: the air inlet channel that is penetrated from outside to inside is set on base, gas storage cavity is set in base, the gas storage cavity is communicated with air inlet channel;Ceramic plate is sealed and set on base, ceramic plate is located above gas storage cavity, ceramic plate has micropore, gas of gas storage cavity diffuses to aeration disc outside through the micropore of ceramic plate;Ceramic plate uses composite ceramic matrix, uses alumina-silicon carbide porous ceramic material;And the bottom of base is provided with metal plate.Nanometer ceramic aeration disc, its structure is simple, corrosion resistance is strong, aeration efficiency is stable, also have the advantages that convenient installation, quick installation;Low energy consumption;Alumina-silicon carbide gradient sintering, balance strength and air permeability;Metal-ceramic fiber composite support framework, break the brittle problem of ceramic;Hydrophobic nanometer coating realizes self-cleaning, long-term maintenance-free operation.Implementation aeration disc stable and efficient work.

Description

Technical Field

[0001] This utility model relates to an aeration device for use in aquatic environments, particularly a stable and efficient nano-ceramic aeration disc. Background Technology

[0002] In the field of water treatment technology, aeration equipment is needed to increase oxygen levels. For example, in aquaculture, aeration equipment is used to increase oxygen levels for aquaculture. Swimming pools also need oxygenation to improve the swimming pool's environment and performance.

[0003] In aquaculture, the different species being farmed can cause feed or fish, shrimp, and crabs to obstruct the aeration equipment inside the pond, such as clogging the aeration holes, leading to increased maintenance costs. Meanwhile, traditional nano-ceramic aeration discs suffer from high brittleness, easy cracking, uneven porosity resulting in unstable aeration efficiency, and are prone to leakage at the connection points with the support structure.

[0004] Especially in wastewater treatment, aeration and oxygenation processes are required. However, wastewater treatment environments are quite demanding, particularly for highly corrosive and high-temperature wastewater. Traditional aeration discs cannot be used for extended periods, leading to continuously increasing maintenance costs. Utility Model Content

[0005] To solve the above-mentioned technical problems, this utility model provides a stable and efficient nano-ceramic aeration disc, including...

[0006] The technical solution of this utility model specifically relates to a stable and efficient nano-ceramic aeration disc, comprising:

[0007] A base, wherein an air intake channel is provided on the base from the outside to the inside, and an air storage chamber is provided inside the base, which is connected to the air intake channel;

[0008] A ceramic plate is sealed on the base and located above the gas storage chamber. The ceramic plate has micropores, and the gas in the gas storage chamber diffuses to the outside of the aeration disc through the micropores of the ceramic plate.

[0009] The ceramic plate uses a composite ceramic matrix and is made of alumina-silicon carbide porous ceramic material; and

[0010] A metal plate is installed at the bottom of the base.

[0011] Furthermore, the base is equipped with mounting steps that mate with the ceramic plate. The mounting steps ensure stable installation of the ceramic plate, preventing it from shaking during use and thus avoiding damage.

[0012] Furthermore, a sealing step is provided on the base, located around the ceramic plate, and sealant is applied within the sealing step to seal the perimeter of the ceramic plate. The sealing step is positioned above the mounting step, achieving a sealed connection through the sealant and also providing cushioning protection.

[0013] Furthermore, a buffer groove is provided inside the base, with at least two buffer grooves, at least one on each side of the air storage cavity, and the buffer grooves are located directly below the ceramic plate. A sealing or cushioning material is placed inside the buffer groove. For example, a sealing ring can be used to achieve both sealing and cushioning; similarly, silicone or rubber products can achieve similar functions.

[0014] Furthermore, the ceramic plate has a porosity ≥35%, micropore diameter of 10-50 micrometers, and surface micropore density of 200-400 pores / cm². 2 This microporous design ensures uniformity and stability during aeration, improving aeration efficiency. With a typical porosity not exceeding 50%, costs can be reduced.

[0015] Furthermore, a gradient sintering process is used to form internally interconnected micropores that combine high air permeability and mechanical strength; specifically, the ceramic matrix consists of aluminum oxide, silicon carbide, and binder, with a sintering temperature of 1350-1450℃.

[0016] Furthermore, the base employs a ceramic fiber mesh skeleton. This material can improve compressive strength (≥15MPa) and prevent brittleness.

[0017] Furthermore, the metal plate can be used for counterweighting and can also improve the overall strength. The 316L stainless steel wire mesh and ceramic fiber composite layer are bonded to the ceramic matrix through high-temperature brazing.

[0018] Furthermore, a base plate is provided at the bottom of the base, and the base plate houses the metal plate within the bottom shell. This ensures the overall performance during use.

[0019] Furthermore, the overall size of the aeration disc is 300-500mm, and the thickness is 20-30mm.

[0020] Furthermore, a hydrophobic coating is applied to the surface of the ceramic plate. The aeration surface is treated with a hydrophobic coating (such as nano-silica modification or hydrophobic paint) to reduce the rate of dirt adhesion.

[0021] Furthermore, the air intake channel adopts a modular interface: it uses a flange-type snap-fit ​​connection design to seal and connect with the air supply pipeline, and is compatible with different pipe diameters (DN50-DN200).

[0022] Furthermore, a baffle is installed inside the air storage chamber, located at the air outlet end of the air inlet channel, with a gap between the baffle and the outlet end. The baffle ensures uniform dispersion of the incoming air.

[0023] Furthermore, the base can be shaped like a disc, square, pentagon, or triangle. Generally, a circular or square shape is sufficient.

[0024] This invention provides a stable and efficient nano-ceramic aeration disc, which features a simple structure, strong corrosion resistance, stable aeration efficiency, and convenient and quick installation. Energy consumption is reduced by 20%-30%, with aeration power consumption ≤0.8 kW·h / kgO2. Material innovations include: alumina-silicon carbide gradient sintering, balancing strength and permeability; structural innovations: a metal-ceramic fiber composite support skeleton, overcoming the problem of ceramic brittleness; and functional innovations: a hydrophobic nano-coating enables self-cleaning and long-term maintenance-free operation. This achieves stable and efficient operation of the aeration disc. Attached Figure Description

[0025] Figure 1 This is a three-dimensional schematic diagram of the aeration disc.

[0026] Figure 2 This is a 3D schematic diagram of the base.

[0027] Figure 3 This is a schematic diagram of the longitudinal section of the aeration disc in the width direction.

[0028] Figure 4 This is a schematic diagram of the longitudinal section along the length of the aeration disc.

[0029] Figure 5 yes Figure 4 A magnified view of a portion of the image.

[0030] Figure label:

[0031] 1. Base; 11. Air intake channel; 12. Air storage chamber; 13. Baffle.

[0032] 2. Ceramic slab, 3. Metal slab, 4. Installed steps.

[0033] 5. Sealed steps, 6. Buffer groove, 7. Base plate. Detailed Implementation

[0034] In order to better understand the technical means of this utility model and to implement it in accordance with the contents of the specification, the specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate this utility model, but are not intended to limit the scope of this utility model.

[0035] See appendix Figure 1-5As shown in this embodiment, a stable and efficient nano-ceramic aeration disc includes:

[0036] The base 1 has an air intake channel 11 that runs from the outside to the inside, and an air storage chamber 12 that is connected to the air intake channel 11 inside the base 1.

[0037] Ceramic plate 2 is sealed on base 1 and located above air storage chamber 12. Ceramic plate 2 has micropores and the gas in air storage chamber 12 diffuses to the outside of aeration disc through the micropores of ceramic plate 2.

[0038] Ceramic plate 2 uses a composite ceramic matrix and employs alumina-silicon carbide porous ceramic material; and

[0039] A metal plate 3 is installed at the bottom of the base 1.

[0040] Furthermore, a mounting step 4 is provided inside the base 1, which is configured to cooperate with the ceramic plate 2. The mounting step 4 ensures the stable installation of the ceramic plate 2, preventing it from shaking during use and causing damage.

[0041] Furthermore, a sealing step 5 is provided on the base 1. The sealing step 5 is located around the ceramic plate 2, and sealant is applied inside the sealing step 5 to seal the perimeter of the ceramic plate 2. The sealing step 5 is located above the mounting step 4, and the sealant achieves a sealed connection and also provides a buffering and protective function.

[0042] Furthermore, a buffer groove 6 is provided inside the base 1. At least two buffer grooves 6 are provided, with at least one on each side of the air storage chamber 12. The buffer groove 6 is located directly below the ceramic plate 2. A sealing or buffering material is provided inside the buffer groove 6. For example, a sealing ring can be provided to achieve both sealing and buffering. Similarly, silicone and rubber products can achieve similar functions.

[0043] Furthermore, the ceramic plate 2 has a porosity ≥35%, a micropore diameter of 10-50 micrometers, and a surface micropore density of 200-400 pores / cm². 2 This microporous design ensures uniformity and stability during aeration, improving aeration efficiency. With a typical porosity not exceeding 50%, costs can be reduced.

[0044] Furthermore, a gradient sintering process is used to form internally interconnected micropores that combine high air permeability and mechanical strength; specifically, the ceramic matrix consists of aluminum oxide, silicon carbide, and binder, with a sintering temperature of 1350-1450℃.

[0045] Furthermore, the base 1 uses a ceramic fiber mesh skeleton. This material can improve compressive strength (≥15MPa) and prevent brittleness.

[0046] Furthermore, the metal plate 3 can be used for counterweighting and can also improve the overall strength. The 316L stainless steel wire mesh and ceramic fiber composite layer are bonded to the ceramic matrix by high-temperature brazing.

[0047] Furthermore, a base plate 7 is provided at the bottom of the base 1, and the base plate 7 houses the metal plate 3 within the bottom shell. This ensures the overall performance during use.

[0048] Furthermore, the overall size of the aeration disc is 300-500mm, and the thickness is 20-30mm.

[0049] Furthermore, a hydrophobic coating is applied to the surface of the ceramic plate 2. The aeration surface is treated with a hydrophobic coating (such as nano-silica modification or hydrophobic paint) to reduce the adhesion rate of dirt.

[0050] Furthermore, the air intake channel 11 adopts a modular interface: it uses a flange-type snap-fit ​​connection design to seal and connect with the air supply pipeline, and is compatible with different pipe diameters (DN50-DN200).

[0051] Furthermore, a baffle 13 is provided inside the air storage chamber 12. The baffle 13 is located at the air outlet end of the air intake channel 11 and has a gap with the air outlet end. The baffle 13 ensures that the air is evenly dispersed after intake.

[0052] Furthermore, the base 1 can be shaped like a disc, square, pentagon, or triangle. Generally, a circular or square shape is sufficient.

[0053] This invention provides a high-strength, corrosion-resistant, anti-clogging, stable, and efficient nano-ceramic aeration disc. It features a simple structure, strong corrosion resistance, stable aeration efficiency, and convenient and quick installation. Energy consumption is reduced by 20%-30%, with aeration power consumption ≤0.8 kW·h / kgO2. Material innovations include: alumina-silicon carbide gradient sintering, balancing strength and permeability; structural innovation: a metal-ceramic fiber composite support skeleton, overcoming the brittleness problem of ceramics; and functional innovation: a hydrophobic nano-coating enables self-cleaning and long-term maintenance-free operation. This achieves stable and efficient operation of the aeration disc.

[0054] Its advantages include: acid and alkali resistance (pH 1-14), high temperature resistance (≤600℃), and a lifespan exceeding 10 years; the gradient microporous structure generates uniform microbubbles (0.5-2mm), achieving an oxygen transfer efficiency of 35%-45%; sludge adhesion is reduced by 60%; the composite support frame can withstand water depths of 8-10 meters without the risk of deformation or breakage. Oxygen utilization rate is ≥40% (clean water conditions), and the temperature resistance range is -50℃ to 600℃.

[0055] Applicable scenarios: Treatment of highly corrosive industrial wastewater (electroplating, pickling, pharmaceuticals, etc.); aeration of high-temperature wastewater (chemical and metallurgical industries); oxygenation at the bottom of intensive aquaculture ponds. Compared with traditional rubber aerators, energy consumption is reduced by 20%-30%, and aeration power consumption is ≤0.8kW·h / kgO2.

[0056] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A stable and efficient nano-ceramic aeration disc, characterized in that, include: A base (1) is provided with an air intake channel (11) that runs from the outside to the inside, and an air storage chamber (12) is provided inside the base (1), which is connected to the air intake channel (11). Ceramic plate (2), the ceramic plate (2) is sealed on the base (1) and the ceramic plate (2) is located above the gas storage chamber (12). At the same time, the ceramic plate (2) has micropores, and the gas in the gas storage chamber (12) diffuses to the outside of the aeration plate through the micropores of the ceramic plate (2). The ceramic plate (2) adopts a composite ceramic matrix, using a porous ceramic material composed of alumina and silicon carbide; and A metal plate (3) is provided at the bottom of the base (1).

2. The stable and efficient nano-ceramic aeration disc according to claim 1, characterized in that: The base (1) is provided with an installation step (4), which is configured to cooperate with the ceramic plate (2).

3. The stable and efficient nano-ceramic aeration disc according to claim 1, characterized in that: A sealing step (5) is also provided on the base (1). The sealing step (5) is located around the ceramic plate (2), and a sealant is provided in the sealing step (5) to seal the ceramic plate (2) around.

4. The stable and efficient nano-ceramic aeration disc according to claim 1, characterized in that: A buffer groove (6) is also provided in the base (1). At least two buffer grooves (6) are provided, and at least one is provided on each side of the gas storage cavity (12). The buffer groove (6) is located directly below the ceramic plate (2). Sealing or buffering material is provided in the buffer groove (6).

5. The stable and efficient nano-ceramic aeration disc according to claim 1, characterized in that: The porosity of the ceramic plate (2) is ≥35%, the pore size of the micropores is 10-50 micrometers, and the micropore density on the ceramic surface is 200-400 pores / cm. 2 .

6. The stable and efficient nano-ceramic aeration disc according to claim 1, characterized in that: The base (1) adopts a ceramic fiber mesh skeleton.

7. The stable and efficient nano-ceramic aeration disc according to claim 1, characterized in that: The base (1) has a bottom plate (7) at its bottom, and the bottom plate (7) houses the metal plate (3) inside the bottom shell.

8. The stable and efficient nano-ceramic aeration disc according to claim 1, characterized in that: The surface of the ceramic plate (2) is provided with a hydrophobic coating.

9. The stable and efficient nano-ceramic aeration disc according to claim 1, characterized in that: A baffle (13) is provided inside the gas storage chamber (12). The baffle (13) is located at the outlet end of the air inlet channel (11) and has a gap with the outlet end.

10. The stable and efficient nano-ceramic aeration disc according to claim 1, characterized in that: The base (1) is configured in any one of the following shapes: disc, square, pentagon, or triangle.

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