Sludge reduction microcarrier system

Abstract

The utility model discloses a sludge reduction microcarrier system relates to sewage biological treatment technical field, including the treatment tank, the inside lower portion of treatment tank is provided with the drain pipe, the upper end intercommunication of drain pipe has the connector, is provided with the aeration head on the connector, the aeration head surface is provided with the anti -blocking subassembly of the connector intercommunication, the utility model discloses beneficial effect is: in the aeration head outside setting anti -blocking subassembly, has realized the self -protection in the start -stop process, when the system starts, the aeration head is driven under the atmospheric pressure and extends to the working position personally, when aeration operation ends, atmospheric pressure disappears, and the aeration head can follow the movement and drop, and drive the cover plate synchronous closing, forms effective seal. This mechanism can isolate the settlement sludge from physics, fundamentally avoids the aeration head to be buried and the blockage.

Description

Technical Field

[0001] This utility model relates to the field of wastewater biological treatment technology, and in particular to a sludge reduction microcarrier system. Background Technology

[0002] In the field of biological wastewater treatment, sludge reduction is one of the core objectives for reducing subsequent treatment costs and environmental pressure. Moving bed biofilm reactor technology based on microcarriers is widely recognized as a highly promising sludge source reduction process due to its ability to increase biomass, optimize microbial community structure, and extend sludge age through attached growth patterns. This system adds a large number of suspended microcarriers to the aeration tank, utilizing the biofilm attached to their surfaces to degrade pollutants. Furthermore, by leveraging the long food chain effect and endogenous respiration within the system, it significantly reduces the yield of excess sludge. However, when the aeration system is shut off, the water flow stops, and a large amount of microcarriers and activated sludge will settle rapidly, completely burying the aeration discs. These mixtures lose water and harden on the disc surface, and combine with the biological inorganic scale inherent in the aeration discs, which can easily cause blockages. Utility Model Content

[0003] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the present invention.

[0004] To solve the above-mentioned technical problems, this utility model provides the following technical solution: A sludge reduction micro-carrier system includes a treatment tank, a drain pipe is provided in the lower inner part of the treatment tank, a connector is connected to the upper end of the drain pipe, and an aeration head is provided on the connector. An anti-clogging component is disposed on the surface of the aeration head and communicates with the connector; The anti-clogging component includes a housing connected to the upper end of the connector, the aeration head is located in the housing, and a cover plate is provided above the housing via a hinge. The cover plate has a semi-circular design.

[0005] As a preferred embodiment of the sludge reduction microcarrier system of this utility model, the anti-clogging component further includes a connecting pipe connected to the lower part of the shell, the connecting pipe having a connecting pipe extending from the upper end to the outside and connected to the aeration head, a one-way valve being provided in the lower part of the connecting pipe, and the connecting pipe and the connector being inserted and connected.

[0006] As a preferred embodiment of the sludge reduction microcarrier system of this utility model, the anti-clogging component further includes an inclined tube connected to the surface of the connecting pipe and connected to the shell at its upper end, the inclined tube being used to divert gas.

[0007] As a preferred embodiment of the sludge reduction microcarrier system of this utility model, the anti-clogging component further includes a limiting sleeve disposed on the lower part of the surface of the connecting pipe, the limiting sleeve being used to limit the rising height of the connecting pipe.

[0008] As a preferred embodiment of the sludge reduction microcarrier system of this utility model, a support pad is provided on the inner wall of the connecting pipe and below the limiting sleeve. The support pad is used to limit the descent position of the aeration head after the aeration head has been used.

[0009] As a preferred embodiment of the sludge reduction microcarrier system of this utility model, the anti-clogging component further includes a piston plate disposed below the aeration head and sleeved on the surface of the connecting pipe, wherein the edge of the piston plate is in contact with the inner wall of the shell.

[0010] As a preferred embodiment of the sludge reduction microcarrier system of this utility model, the lower inner space of the shell is a gas compression chamber, which is used to control the rise of the aeration head in conjunction with the piston plate.

[0011] As a preferred embodiment of the sludge reduction microcarrier system of this utility model, the inner wall and surface of the cover plate are both designed in a conical shape.

[0012] As a preferred embodiment of the sludge reduction microcarrier system of this utility model, the anti-clogging component further includes an abutment rod disposed at the upper end of the aeration head, the upper end of the abutment rod abutting against the inner conical surface of the cover plate.

[0013] As a preferred embodiment of the sludge reduction microcarrier system of this utility model, a torsion spring is provided in the hinge used to fix the cover plate, so as to automatically drive the cover plate to close after the aeration head is used.

[0014] The beneficial effects of this invention are as follows: An anti-clogging component is installed on the outside of the aeration head, achieving self-protection during start-up and shutdown. When the system starts, the aeration head extends to the working position under air pressure; when aeration ends and the air pressure disappears, the aeration head descends accordingly, driving the cover plate to close synchronously, forming an effective seal. This mechanism can physically isolate settled sludge, fundamentally preventing the aeration head from being buried and clogged. Attached Figure Description

[0015] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Among them: Figure 1 This is a diagram illustrating the overall structure of the sludge reduction microcarrier system.

[0016] Figure 2 A structural diagram of the aeration system for the sludge reduction microcarrier system.

[0017] Figure 3 Structural diagram of the anti-clogging components and aeration heads for the sludge reduction microcarrier system.

[0018] Figure 4 Structural diagram of the anti-clogging component for the sludge reduction microcarrier system.

[0019] The following are the labeling elements in the diagram: 100, treatment tank; 110, pipe; 111, connector; 120, aeration head; 200, anti-clogging component; 210, shell; 211, inclined tube; 212, piston plate; 213, connecting pipe; 214, limit sleeve; 215, abutment rod; 216, cover plate; 217, support pad; 218, connecting pipe; 219, one-way valve. Detailed Implementation

[0020] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0021] 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. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0022] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that excludes other embodiments.

[0023] Example 1: Reference Figures 1-4This is the first embodiment of the present invention. This embodiment provides a sludge reduction micro-carrier system, including a treatment tank 100. A pipe 110 is provided in the lower inner part of the treatment tank 100 for conveying aeration gas. The upper end of the pipe 110 is connected to a connector 111, and an aeration head 120 is provided on the connector 111. In the process of reducing sludge at the source using a microcarrier system, the treatment tank 100 is used in conjunction with an aeration system to uniformly fluidize the microcarriers and provide efficient oxygenation. This is an indispensable key link in realizing the core function of the system, namely, reducing sludge by optimizing the microbial community structure and extending the food chain. The workflow is as follows: The wastewater to be treated and the specially added microcarriers enter the treatment tank 100 together. The aeration device of this utility model starts to work, providing oxygen to the system and ensuring that the microcarriers are in a uniformly fluidized suspension state. The rich microbial community attached to the surface of the microcarriers efficiently degrades the pollutants in the wastewater. By optimizing the microbial community structure and extending the microbial chain, the system reduces sludge at the source. When aeration stops, the anti-clogging mechanism of this utility model is activated to protect the aeration head 120 and prepare for the next efficient operation. Anti-clogging component 200 is disposed on the surface of aeration head 120 and communicates with connector 111; The anti-clogging component 200 includes a housing 210 connected to the upper end of the connector 111, an aeration head 120 located in the housing 210, and a cover plate 216 with a hinge on the upper part of the housing 210. The cover plate 216 has a semi-circular design, and the two together constitute the protective chamber of the aeration head 120.

[0024] Example 2: Reference Figures 1-4 This is the second embodiment of the present invention, which is based on the previous embodiment.

[0025] Specifically, the anti-clogging component 200 also includes a connecting pipe 218 connected to the lower part of the housing 210. The connecting pipe 218 is provided with a connecting pipe 213 that extends to the outside and is connected to the aeration head 120. A one-way valve 219 is provided in the lower part of the connecting pipe 213. The connecting pipe 218 and the connector 111 are connected by insertion for easy installation and maintenance.

[0026] The specific operation is as follows: When the system starts up and aeration is required to maintain the fluidization of the microcarriers and the oxygen consumption of the microorganisms, the external fan injects gas into the drain pipe 110 and delivers it to the connecting pipe 218. In the initial stage, the gas flows upward in the connecting pipe 218, but because the one-way valve 219 at the lower end of the connecting pipe 213 is closed when the gas pressure does not reach the threshold, the gas cannot be released directly through the aeration head 120.

[0027] Specifically, the anti-clogging component 200 also includes an inclined tube 211 connected to the surface of the connecting pipe 218 and connected to the housing 210 at its upper end. The inclined tube 211 is used to divert the gas. The anti-clogging component 200 also includes a piston plate 212 disposed below the aeration head 120 and sleeved on the surface of the connecting pipe 213. The edge of the piston plate 212 is in contact with the inner wall of the housing 210. The lower inner space of the housing 210 is a gas compression chamber, which is used to control the aeration head 120 to rise in conjunction with the piston plate 212.

[0028] The initial injected airflow enters the gas compression chamber through the inclined tube 211, causing the gas pressure inside the chamber to increase, which pushes the piston plate 212 to lift the entire aeration head 120 assembly upward.

[0029] Specifically, the anti-blocking component 200 also includes a limiting sleeve 214 disposed on the lower part of the surface of the connecting pipe 213, which is used to limit the rising height of the connecting pipe 213.

[0030] Because the surface of the connecting pipe 213 is provided with a limiting sleeve 214, when the aeration head 120 is lifted upward by the gas-coordinated piston plate 212, it can only rise to the fully exposed position.

[0031] Example 3: Reference Figures 3-4 This is the third embodiment of the present invention, which is based on the first two embodiments.

[0032] Specifically, the inner wall and surface of the cover plate 216 are both tapered; the anti-clogging component 200 also includes an abutment rod 215 disposed at the upper end of the aeration head 120, the upper end of the abutment rod 215 abutting against the inner tapered surface of the cover plate 216.

[0033] As the aeration head 120 is lifted upward by the gas, its upper end abutting rod 215 rises accordingly and abuts against the inner conical surface of the cover plate 216, applying an upward thrust. This thrust causes the cover plate 216 to rotate around the hinge axis, thereby opening the cover plates 216 on both sides to make way for the extended aeration of the aeration head 120; When the aeration head 120 is fully exposed, i.e., the limiting sleeve 214 has risen to the upper limit position within the connecting pipe 218, the volume of the gas compression chamber no longer changes. At this time, the air pressure within the connecting pipe 218 increases rapidly. When the pressure exceeds the opening threshold of the one-way valve 219, the one-way valve 219 is opened, allowing the main airflow to enter the aeration head 120 through the connecting pipe 213 and be ejected at high speed from its micropores, forming uniform and fine bubbles within the liquid in the treatment tank 100, achieving efficient aeration. This process provides essential oxygen mass transfer and hydraulic conditions for the fluidization of the microcarrier and the degradation of pollutants by the biofilm attached to it, as well as for sludge reduction.

[0034] Specifically, a torsion spring is provided in the hinge used to hinge and fix the cover plate 216, so that the cover plate 216 can be automatically closed after the aeration head 120 is used.

[0035] The external air source is cut off, and the air supply to pipe 110 stops. The gas pressure in the connecting pipe 218 and the gas compression chamber dissipates and flows back through the inclined pipe 211 and other paths. After losing air pressure support, the aeration head 120 begins to descend under its own weight. As the aeration head 120 descends, the abutment rod 215 disengages from the cover plate 216, and the torsion spring in the hinge immediately takes effect, driving the two cover plates 216 to automatically rotate and quickly close, forming an effective seal on the opening above the shell 210. This process re-seales the aeration head 120 within the clean shell 210, effectively preventing the microcarriers, activated sludge, and other solid materials that settle in the treatment tank 100 from burying and clogging the aeration head 120, ensuring its long-term operational stability. This is crucial for microcarrier systems that require continuous and stable operation to achieve sludge reduction targets.

[0036] Specifically, a support pad 217 is provided on the inner wall of the connecting pipe 218 and below the limiting sleeve 214. The support pad 217 is used to limit the descent position of the aeration head 120 after it has been used.

[0037] By setting the support pad 217, the descent position of the aeration head 120 can be limited in conjunction with the limiting sleeve 214; During use, in the process of reducing sludge volume using the microcarrier system, the treatment tank 100 needs to be used in conjunction with the aeration system to uniformly fluidize the microcarrier and provide efficient oxygenation. When the system starts, external gas enters the anti-clogging component 200 through the drain pipe 110. The gas first enters the gas compression chamber at the bottom of the shell 210 through the inclined pipe 211, pushing the piston plate 212 to drive the aeration head 120 to rise as a whole. As the aeration head 120 rises, the abutment rod 215 at its upper end pushes the cover plate 216 to rotate and open around the hinge. When the aeration head 120 is fully exposed to the working position, the air pressure in the connecting pipe 218 reaches the threshold and opens the one-way valve 219, and the gas flows through the connecting pipe 213. The microcarriers enter the aeration head 120 and are released into the treatment tank 100. At this time, the microcarriers maintain a uniform fluidized state under the action of airflow. The biofilm attached to their surface degrades pollutants and reduces sludge at the source by optimizing the microbial community structure and extending the food chain. When the aeration operation ends, the air source is cut off, the pressure in the gas compression chamber dissipates, and the aeration head 120 descends under its own weight. The abutment rod 215 then disengages from the cover plate 216. The torsion spring in the hinge drives the cover plate 216 to close automatically to form a seal, completely protecting the aeration head 120 in the shell 210. This effectively prevents the settled microcarriers and sludge from burying and clogging the aeration head 120, ensuring the continuous and stable operation of the system.

[0038] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A sludge reduction microcarrier system, comprising a treatment tank (100), characterized in that: The lower inner part of the treatment tank (100) is provided with a pipe (110), and the upper end of the pipe (110) is connected to a connector (111), and an aeration head (120) is provided on the connector (111). An anti-clogging component (200) is disposed on the surface of the aeration head (120) and communicates with the connector (111); The anti-clogging component (200) includes a housing (210) connected to the upper end of the connector (111), the aeration head (120) is located in the housing (210), and a cover plate (216) is provided above the housing (210) via a hinge. The cover plate (216) has a semi-circular design.

2. The sludge reduction microcarrier system as described in claim 1, characterized in that: The anti-clogging component (200) also includes a connecting pipe (218) connected to the lower part of the housing (210). The connecting pipe (218) is provided with a connecting pipe (213) extending from the upper end to the outside and communicating with the aeration head (120). A one-way valve (219) is provided in the lower part of the connecting pipe (213). The connecting pipe (218) and the connector (111) are connected by insertion.

3. The sludge reduction microcarrier system as described in claim 1, characterized in that: The anti-clogging component (200) also includes an inclined tube (211) connected to the surface of the connecting pipe (218) and connected at its upper end to the housing (210), the inclined tube (211) being used to divert gas.

4. The sludge reduction microcarrier system as described in claim 1, characterized in that: The anti-blocking component (200) also includes a limiting sleeve (214) disposed on the lower part of the surface of the connecting pipe (213), the limiting sleeve (214) being used to limit the rising height of the connecting pipe (213).

5. The sludge reduction microcarrier system as described in claim 2, characterized in that: A support pad (217) is provided on the inner wall of the connecting pipe (218) and below the limiting sleeve (214). The support pad (217) is used to limit the descent position of the aeration head (120) after the aeration head (120) has been used.

6. The sludge reduction microcarrier system as described in claim 1, characterized in that: The anti-clogging component (200) also includes a piston plate (212) disposed below the aeration head (120) and sleeved on the surface of the connecting pipe (213), wherein the edge of the piston plate (212) is in contact with the inner wall of the housing (210).

7. The sludge reduction microcarrier system as described in claim 1, characterized in that: The lower inner space of the housing (210) is a gas compression chamber, which is used to control the rise of the aeration head (120) in conjunction with the piston plate (212).

8. The sludge reduction microcarrier system as described in claim 1, characterized in that: The inner wall and surface of the cover plate (216) are both tapered.

9. The sludge reduction microcarrier system as described in claim 1, characterized in that: The anti-clogging component (200) also includes an abutment rod (215) disposed on the upper end of the aeration head (120), the upper end of the abutment rod (215) abutting against the inner conical surface of the cover plate (216).

10. The sludge reduction microcarrier system as described in claim 1, characterized in that: A torsion spring is provided in the hinge used to fix the cover plate (216) so that the cover plate (216) can be automatically closed after the aeration head (120) is used.

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