Micro-nano active ceramic aeration device

Abstract

The application relates to the technical field of aeration devices, in particular to a micro-nano active ceramic aeration device which comprises a shell and a self-cleaning mechanism, the inside of the shell is fixedly connected with two mounting plates; the hexagonal active ceramic sheet and the self-cleaning mechanism are arranged, high-speed cyclone makes the gas receive stronger shearing force when passing through the micropores of the ceramic sheet, the micropore structure of the ceramic sheet is matched, the gas can be more efficiently broken into micro-nano bubbles with more uniform diameters, the gas-liquid mass transfer area and the dissolved oxygen efficiency are improved, meanwhile, part of the gas can drive the backforce blade, the brush shaft is rotated on the connecting seat under the drive of the backforce blade, a plurality of mounting seats and rotary brushes are driven to rotate, the plurality of rotary brushes continuously or periodically clean the surface and pores of the hexagonal active ceramic sheet along with the airflow, the adhered pollutants can be timely removed, the aeration efficiency caused by the pore blockage is avoided, the micropores of the ceramic sheet can keep unblocked for a long time, and the stable micro-nano bubble generation effect can be maintained.

Description

Technical Field

[0001] This application relates to the technical field of aeration devices, and in particular to a micro-nano active ceramic aeration device. Background Technology

[0002] Aeration refers to the artificial introduction of air into a biological aeration tank using appropriate equipment to achieve the desired purpose. Aeration not only allows the liquid in the tank to come into contact with air and be oxygenated, but also accelerates the transfer of oxygen from the air to the liquid due to the agitation of the liquid, thereby achieving the purpose of oxygenation. In addition, aeration also prevents suspended matter in the tank from settling and enhances the contact between organic matter and microorganisms in the tank and dissolved oxygen, thereby ensuring that the microorganisms in the tank can oxidize and decompose organic matter in wastewater under the condition of sufficient dissolved oxygen. Ceramic membranes, also known as inorganic ceramic membranes, are widely used as filter elements in various industries such as food and beverage, biomedicine, chemical industry, metallurgy and power generation, and environmental water treatment.

[0003] A ceramic membrane micro-nano aeration device, disclosed in Chinese Patent Publication No. CN214653899U, includes a housing. A partition is fixedly connected to the inner wall of the housing, and a liquid inlet is formed on the surface of the partition. An aeration chamber is located at the upper end of the partition, and an aeration nozzle is fixedly connected to the inner wall of the aeration chamber. The aeration nozzle has a cylindrical structure and multiple sets of air holes on its inner wall. An upper fixing bracket is fixedly connected to the lower end face of the partition, and a through hole is formed on the upper end face of the upper fixing bracket. A lower cover is detachably connected to the lower end face of the housing, and a lower fixing bracket is fixedly connected to the upper end face of the lower cover. A ceramic membrane tube is detachably connected between the upper and lower fixing brackets. This ceramic membrane micro-nano aeration device increases the contact area between the gas and the wastewater in the housing by setting the aeration nozzle to a cylindrical structure and forming multiple sets of air holes on the inner wall of the aeration nozzle, thereby improving the aeration effect of the ceramic membrane micro-nano aeration device.

[0004] The following problems exist in this scheme: The device adopts a cylindrical structure for the aeration nozzle and opens multiple sets of air holes on the inner wall of the aeration nozzle, thereby increasing the contact area between the gas and the sewage in the shell and improving the micro-nano aeration effect of the ceramic membrane. However, the above scheme still has some problems. For example, the pores of the ceramic aeration disc are easily blocked by the biofilm, which leads to the formation of a "dead zone" in the central area of ​​the ceramic disc, resulting in uneven aeration and requiring frequent disassembly for acid washing.

[0005] Therefore, in order to solve the above problems, this application provides a micro-nano active ceramic aeration device. Utility Model Content

[0006] To address the problem that ceramic aeration discs are easily clogged by biofilms, leading to "dead zones" in the central area and uneven aeration, requiring frequent disassembly and acid washing, this application provides a micro-nano active ceramic aeration device.

[0007] This application provides a micro / nano activated ceramic aeration device, comprising a shell and a self-cleaning mechanism. Two mounting plates are fixedly connected inside the shell, and a support frame is fixedly connected between the two mounting plates. Multiple hexagonal activated ceramic sheets are snapped between the two mounting plates and the support frame via three-point fasteners. A self-cleaning mechanism is provided between the two mounting plates, and the self-cleaning mechanism includes:

[0008] A brush shaft is rotatably connected to the middle of a plurality of hexagonal active ceramic sheets, and a recoil blade is fixedly connected to the top of the brush shaft. A rotating brush is arranged between two adjacent hexagonal active ceramic sheets near the brush shaft, and the plurality of rotating brushes are in contact with the surface of the hexagonal active ceramic sheets.

[0009] A turbulence enhancement component is provided at the bottom of the housing.

[0010] Preferably, the material of the plurality of rotating brushes is silicone.

[0011] Preferably, a connecting seat is rotatably connected to the top of the brush shaft, and connecting brackets are fixedly connected to both sides of the connecting seat. The bottom ends of the two connecting brackets are fixedly connected to the mounting plate located at the top.

[0012] Preferably, a plurality of mounting seats are fixedly connected to the brush shaft, the plurality of mounting seats are located between hexagonal active ceramic plates, and the plurality of rotating brushes are fixedly connected to the brush shaft through the mounting seats.

[0013] Preferably, each of the hexagonal active ceramic sheets has multiple ceramic sheet micropores, and the ceramic sheet micropores adopt a gradient pore size distribution.

[0014] Preferably, the top of the housing is snapped with a top cover, and the top of the top cover is provided with a nanopore outlet.

[0015] Preferably, a base is snapped onto the bottom of the housing, an air inlet pipe is connected to the top of the base, and sealing rings are fixedly connected to both the top and bottom of the housing.

[0016] Preferably, the turbulence enhancement component includes:

[0017] The bottom of the shell is provided with a swirling chamber, and spiral guide vanes are fixedly connected to both sides of the swirling chamber. There are six spiral guide vanes.

[0018] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0019] In this invention, by setting hexagonal active ceramic plates and a self-cleaning mechanism, the high-speed swirling flow causes the gas to be subjected to stronger shear force when passing through the micropores of the ceramic plates. Combined with the microporous structure of the ceramic plates, the gas can be broken into micro- and nano-bubbles with more uniform diameter more efficiently, improving the gas-liquid mass transfer area and dissolved oxygen efficiency. At the same time, some gas can drive the recoil blades, which drive the brush shaft to rotate. The brush shaft rotates on the connecting seat, driving multiple mounting seats and rotating brushes to rotate. Multiple rotating brushes continuously or periodically clean the surface and pores of the hexagonal active ceramic plates with the airflow, which can remove attached pollutants in time, avoid the decrease in aeration efficiency caused by pore blockage, ensure that the micropores of the ceramic plates remain unobstructed for a long time, and maintain a stable micro- and nano-bubble generation effect. While driving the cleaning, the recoil blades further disturb the airflow by rotating, enhancing the swirling intensity inside the shell, making the gas and liquid mix more fully, avoiding the gas blockage caused by local gas accumulation, and ensuring that the bubbles diffuse evenly in the water.

[0020] In this invention, by setting a spiral guide vane and a swirling chamber, gas enters the swirling chamber from the air inlet of the base. The gas forms a composite motion of axial and tangential directions through the spiral guide vane. When the high-speed rotating airflow in the tangential direction passes through the micropores of the ceramic plate, it generates a very strong circumferential shear force on the gas. Combined with the axial velocity pushing, the gas is torn into finer and more uniform micro-nano bubbles at the micropores. The bubble particle size distribution deviation can be reduced to within ±3μm, which is far superior to the shearing effect of ordinary straight airflow. The Coriolis force generated by the swirling flow causes the airflow to form a spiral motion trajectory in the chamber. The collision and friction between gas molecules are more intense. The gas molecules are pre-dispersed before entering the micropores, which further improves the shearing efficiency, reduces the probability of large bubble formation, and ensures the high specific surface area and solubility of the bubbles. Attached Figure Description

[0021] Figure 1 This is a perspective view of an embodiment of this application;

[0022] Figure 2 This is a perspective cross-sectional view of an embodiment of this application;

[0023] Figure 3 This is a perspective view of the self-cleaning mechanism in an embodiment of this application;

[0024] Figure 4 This is a three-dimensional cross-sectional view of the vortex chamber in an embodiment of this application.

[0025] Explanation of reference numerals in the attached drawings: 1. Shell; 2. Top cover; 3. Nanopore outlet; 4. Sealing ring; 5. Base; 6. Mounting plate; 7. Support frame; 8. Hexagonal active ceramic sheet; 9. Spiral guide vane; 10. Air inlet pipe; 11. Swirl chamber; 12. Recoil blade; 13. Rotating brush; 14. Connecting frame; 15. Connecting seat; 16. Mounting seat; 17. Brush shaft; 18. Micropores in the ceramic sheet. Detailed Implementation

[0026] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0027] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0028] Example 1, such as Figure 1-4 As shown, this utility model provides a micro-nano activated ceramic aeration device, including a shell 1, a self-cleaning mechanism, and a turbulence enhancement component. Two mounting plates 6 are fixedly connected inside the shell 1, and a support frame 7 is fixedly connected between the two mounting plates 6. Multiple hexagonal activated ceramic sheets 8 are snapped together between the two mounting plates 6 and the support frame 7 via three-point snap-fits. The self-cleaning mechanism includes: a brush shaft 17 rotatably connected to the middle of the multiple hexagonal activated ceramic sheets 8; a recoil blade 12 fixedly connected to the top of the brush shaft 17; and rotating brushes 13 positioned near the brush shaft 17 between two adjacent hexagonal activated ceramic sheets 8. All rotating brushes 13 are in contact with the surface of the hexagonal activated ceramic sheets 8. Multiple rotating brushes 13 are made of silicone. A connecting seat 15 is rotatably connected to the top of the brush shaft 17. Connecting brackets 14 are fixedly connected to both sides of the connecting seat 15. The bottom ends of both connecting brackets 14 are fixedly connected to the mounting plate 6 located at the top. Multiple mounting seats 16 are fixedly connected to the brush shaft 17. Multiple hexagonal active ceramic sheets 8 are provided with multiple ceramic sheet micropores 18. Multiple mounting seats 16 are located between the hexagonal active ceramic sheets 8. Multiple rotating brushes 13 are fixedly connected to the brush shaft 17 through the mounting seats 16. The ceramic sheet micropores 18 adopt a gradient pore size distribution, with a densely distributed pore size of 10μm in the central area and a sparsely distributed pore size of 20μm in the edge area. The ceramic sheets are hexagonal Ag / TiO2 coated active ceramics. A top cover 2 is snapped onto the top of the shell 1, and a base 5 is snapped onto the bottom of the shell 1. A nano-pore outlet 3 is connected to the top of the top cover 2, and an air inlet pipe 10 is connected to the top of the base 5.

[0029] In this embodiment, gas enters the housing 1 through the air inlet pipe 10 at the bottom of the base 5. The high-speed swirling flow causes the gas to be sheared into micro-nano bubbles when passing through the micropores 18 of the ceramic sheet. At the same time, some of the gas can drive the recoil blades 12, which drive the brush shaft 17 to rotate. The brush shaft 17 rotates on the connecting seat 15, which drives multiple mounting seats 16 and rotating brushes 13 to rotate. The multiple rotating brushes 13 clean the pores blocked by the hexagonal active ceramic sheet 8, periodically cleaning the surface of the hexagonal active ceramic sheet 8. The recoil blades 12 simultaneously undertake the dual functions of driving cleaning and enhancing swirling flow. By utilizing the system's own airflow energy, the originally dissipated fluid kinetic energy is converted into cleaning power, eliminating the need for additional power components for cleaning. The system's energy efficiency ratio is improved by 35%, and the cleaning intensity is automatically adjusted according to the gas flow rate, reducing the number of acid washing cycles, saving maintenance costs, and extending the service life of the hexagonal active ceramic sheet 8.

[0030] Example 2, as Figure 1-4 As shown, the turbulence enhancement component includes: a swirling chamber 11 is provided at the bottom of the housing 1, and spiral guide vanes 9 are fixedly connected to both sides of the swirling chamber 11. There are six spiral guide vanes 9, and the pitch angle of the spiral guide vanes 9 is 45°. Sealing rings 4 are fixedly connected to the top and bottom of the housing 1.

[0031] In this embodiment, gas enters the swirling chamber 11 from the air inlet of the base 5 and forms a high-speed swirling flow through the spiral guide vane 9, converting the straight airflow into a high-speed rotating airflow. When the airflow passes through the spiral guide vane 9, it generates a Coriolis force, forming a composite motion of axial velocity (5-8m / s) and tangential velocity (20-25m / s). The swirling flow extends the gas residence time by 40%, so that the gas is sheared into micro-nano bubbles when passing through the micropores 18 (pore diameter 10-20μm) of the ceramic sheet. In addition, part of the gas drives the recoil blade 12, which drives the rotating brush 13 to periodically clean the surface of the hexagonal active ceramic sheet 8, ensuring that the gas passes through each ceramic module unit evenly.

[0032] Working principle: During use, gas enters the swirling chamber 11 from the air inlet of the base 5 and forms a high-speed swirling flow through the spiral guide vane 9, converting the straight airflow into a high-speed rotating airflow. When the airflow passes through the spiral guide vane 9, it generates Coriolis force, forming a composite motion of axial velocity (5-8m / s) and tangential velocity (20-25m / s). The swirling flow extends the gas residence time by 40%, causing the gas to be sheared into micro-nano bubbles when passing through the micropores 18 (pore diameter 10-20μm) of the ceramic sheet. At the same time, some of the gas can drive the recoil blades 12, which drive the brush shaft 17 to rotate. The brush shaft 17 rotates on the connecting seat 15, driving multiple mounting seats 16 and rotating brushes 13 to rotate. Multiple rotating brushes 13 clean the pores blocked by the hexagonal active ceramic sheet 8, periodically cleaning the surface of the hexagonal active ceramic sheet 8. The recoil blades 12 simultaneously undertake the dual functions of driving cleaning and enhancing swirling flow, utilizing the system's own airflow energy, without the need for additional power components for cleaning.

[0033] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A micro-nano active ceramic aeration device comprising a shell (1) and a self-cleaning mechanism, characterized in that: The housing (1) has two mounting plates (6) fixedly connected inside, and a support frame (7) is fixedly connected between the two mounting plates (6). Multiple hexagonal active ceramic sheets (8) are snapped together between the two mounting plates (6) and the support frame (7) via three-point snap fasteners. A self-cleaning mechanism is provided between the two mounting plates (6), and the self-cleaning mechanism includes: A brush shaft (17) is rotatably connected to the middle of a plurality of hexagonal active ceramic sheets (8). A recoil blade (12) is fixedly connected to the top of the brush shaft (17). A rotating brush (13) is arranged between two adjacent hexagonal active ceramic sheets (8) near the brush shaft (17). All of the rotating brushes (13) are in contact with the surface of the hexagonal active ceramic sheets (8). The bottom of the housing (1) is provided with a turbulence enhancement component.

2. The micro / nano-active ceramic aeration device according to claim 1, characterized in that: The material of the plurality of rotating brushes (13) is set to silicone.

3. The micro / nano-active ceramic aeration device according to claim 1, characterized in that: The top end of the brush shaft (17) is rotatably connected to a connecting seat (15), and both sides of the connecting seat (15) are fixedly connected to connecting brackets (14). The bottom ends of the two connecting brackets (14) are fixedly connected to the mounting plate (6) located at the top.

4. The micro / nano-active ceramic aeration device according to claim 3, characterized in that: Multiple mounting seats (16) are fixedly connected to the brush shaft (17). The multiple mounting seats (16) are located between the hexagonal active ceramic sheets (8). The multiple rotating brushes (13) are all fixedly connected to the brush shaft (17) through the mounting seats (16).

5. The micro / nano-active ceramic aeration device according to claim 1, characterized in that: Multiple ceramic micropores (18) are formed on each of the hexagonal active ceramic sheets (8), and the ceramic micropores (18) adopt a gradient pore size distribution.

6. The micro / nano-active ceramic aeration device according to claim 1, characterized in that: The top of the housing (1) is snapped with a top cover (2), and the top of the top cover (2) is connected to a nanopore outlet (3).

7. The micro / nano-active ceramic aeration device according to claim 6, characterized in that: The bottom of the housing (1) is snapped with a base (5), and the top of the base (5) is connected to an air inlet pipe (10). Both the top and bottom of the housing (1) are fixedly connected with sealing rings (4).

8. The micro / nano-active ceramic aeration device according to claim 1, characterized in that: The turbulence enhancement component includes: The bottom of the shell (1) is provided with a swirling chamber (11), and spiral guide vanes (9) are fixedly connected to both sides of the swirling chamber (11). There are six spiral guide vanes (9).

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