A sludge reduction device based on porous packing material

Abstract

This utility model discloses a sludge reduction device based on porous packing, belonging to the field of sludge reduction technology. It includes an inlet pipe, a reduction mechanism fixedly connected to its outer surface, a filter assembly movably connected to the inner cavity of the inlet pipe, and an outlet pipe fixedly connected inside the reduction mechanism. A valve is installed on the outer surface of the outlet pipe. Through two aerators and a stirring assembly, air can be supplied to the reaction tank to form a stable aerobic environment, providing sufficient oxygen for the aerobic metabolism of microorganisms and accelerating the decomposition of organic matter in the sludge. Simultaneously, the water flow disturbance generated by aeration and the stirring action of the stirring assembly promote full contact between the wastewater and the biofilm on the porous packing, significantly improving mass transfer efficiency. In this environment, microorganisms can more fully utilize the organic matter in the wastewater, accelerating their own metabolism and sludge decomposition, thus improving sludge reduction efficiency, effectively reducing subsequent sludge treatment costs and environmental pressure, and enhancing the practicality of the device.

Description

Technical Field

[0001] This utility model relates to the field of sludge reduction technology, and more specifically, to a sludge reduction device based on porous packing. Background Technology

[0002] With the acceleration of urbanization and rapid industrial development, the scale of wastewater treatment continues to expand, resulting in a year-on-year increase in the amount of sludge generated. Statistics show that my country produces tens of millions of tons of municipal and industrial sludge annually, and this figure continues to grow at a high rate. If sludge is not properly treated, it not only occupies a large amount of land resources but may also cause a series of environmental problems such as heavy metal pollution, pathogen spread, and odorous gas emissions. At the same time, the high cost of sludge treatment places a heavy burden on wastewater treatment plants; the costs covering sludge thickening, dewatering, stabilization, and final disposal can account for 30%-50% of the total cost of wastewater treatment. Therefore, the research and application of sludge reduction technologies are of great significance for achieving the economic and environmental sustainable development of wastewater treatment.

[0003] To address the high sludge production issue of traditional activated sludge processes, biofilm processes have emerged, with porous packing materials being crucial. Porous packing materials reduce sludge production or accelerate sludge decomposition by optimizing microbial metabolic pathways, promoting microbial community structure upgrades, and enhancing biodegradation efficiency. Within the biofilm formed on the surface of the porous packing materials, microorganisms are in a "nutrient-poor" state, making them more susceptible to endogenous respiration compared to traditional activated sludge processes. This means they consume their own stored substances or the microbial cells themselves to sustain life, effectively reducing sludge formation.

[0004] However, existing sludge reduction technologies based on porous packing materials still have certain limitations. Existing devices lack aeration or stirring equipment, making it impossible to keep the packing materials in a suspended and flowing state, ensuring sufficient contact between them and the wastewater, and thus failing to maximize their effectiveness.

[0005] Therefore, a sludge reduction device based on porous packing is proposed to address the above problems. Utility Model Content

[0006] 1. Technical problems to be solved

[0007] To address the problems existing in the prior art, the purpose of this utility model is to provide a sludge reduction device based on porous packing material, which can reduce the sludge content in wastewater.

[0008] 2. Technical Solution

[0009] To solve the above problems, the present invention adopts the following technical solution.

[0010] A sludge reduction device based on porous packing includes an inlet pipe, a reduction mechanism fixedly connected to the outer surface of the inlet pipe, a filter assembly movably connected to the inner cavity of the inlet pipe, an outlet pipe fixedly connected inside the reduction mechanism, and a valve installed on the outer surface of the outlet pipe. The reduction mechanism includes a reaction chamber, two aerators fixedly connected to the bottom wall of the inner cavity of the reaction chamber, a baffle fixedly connected to the bottom wall of the inner cavity of the reaction chamber, a support plate fixedly connected to the upper end of the reaction chamber, a stirring assembly fixedly connected to the upper end of the support plate, and a connecting assembly fixedly connected to the outside of the stirring assembly. The aerators supply air into the reaction chamber to create a stable aerobic environment, providing sufficient oxygen for the aerobic metabolism of microorganisms, accelerating the decomposition of organic matter in the sludge, and simultaneously disturbing the water flow to promote full contact between the wastewater and the biofilm on the porous packing. The baffle can block the porous packing, preventing it from being struck by the stirring assembly during flow.

[0011] Furthermore, the filtration assembly includes a collection bucket with several square holes on the rear wall of its inner cavity. Limiting strips are fixedly connected to both ends of the collection bucket, and a handle is fixedly connected to the upper end of the collection bucket. Impurities in the sewage are intercepted in the collection bucket, while the water flow can continue to enter the reduction mechanism through the square holes. The size of the square holes is precisely designed to effectively filter impurities while ensuring smooth water flow. The handle allows staff to periodically remove the collection bucket from the inlet pipe to clean the intercepted impurities.

[0012] Furthermore, the stirring assembly includes a motor, the lower end of which is fixedly connected to the upper end of the support plate. The output end of the motor is fixedly connected to a transmission rod via a coupling. Two stirring plates are fixedly connected to the outer surface of the transmission rod. When the stirring plates rotate, they can generate water flow force to ensure that the sewage in each area of ​​the reaction tank is fully stirred, so that the sewage and the packing material are in full contact.

[0013] Furthermore, the connecting assembly includes a hollow tube, with two bearings fixedly connected to the inner surface of the hollow tube. A connecting rod is fixedly connected to the inner surface of the two bearings. A connecting groove is provided at the upper end of the connecting rod. A sealing ring is fixedly connected to the inner surface of the hollow tube. The sealing ring can prevent sewage from entering the hollow tube and causing corrosion to the bearings and other components.

[0014] Furthermore, the outer surface of the transmission rod is fixedly connected to the inner surface of the connecting groove.

[0015] Furthermore, the lower end of the hollow tube is fixedly connected to the bottom wall of the inner cavity of the reaction chamber, the inner surface of the reaction chamber is fixedly connected to and communicates with the outer surface of the water inlet pipe, and the inner surface of the reaction chamber is fixedly connected to and communicates with the outer surface of the water outlet pipe.

[0016] 3. Beneficial effects

[0017] Compared with existing technologies, the advantages of this utility model are:

[0018] (1) This scheme uses two aerators in conjunction with a stirring assembly to deliver air into the reaction tank, forming a stable aerobic environment, providing sufficient oxygen for the aerobic metabolism of microorganisms, and accelerating the decomposition of organic matter in sludge; at the same time, the water flow disturbance generated by aeration and the stirring effect of the stirring assembly promote the full contact between sewage and biofilm on porous packing, significantly improving mass transfer efficiency. Under this environment, microorganisms can make fuller use of organic matter in sewage, accelerate their own metabolism and sludge decomposition, thereby improving sludge reduction efficiency and effectively reducing subsequent sludge treatment costs and environmental pressure.

[0019] (2) This solution can effectively block the porous packing through the baffle, preventing the packing from being hit by the stirring components during water flow disturbance and stirring, effectively preventing the packing from being damaged, ensuring the integrity and stability of the packing structure, maintaining long-term stable sludge reduction performance, and improving the practicality of the device. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0021] Figure 2 This is a schematic diagram of the filter assembly of this utility model;

[0022] Figure 3 This is a schematic diagram of the weight reduction mechanism of this utility model;

[0023] Figure 4 This is a schematic diagram of the stirring assembly of this utility model;

[0024] Figure 5 This is a schematic diagram of the connection component of this utility model.

[0025] Explanation of the labels in the diagram:

[0026] 1. Inlet pipe; 2. Filter assembly; 21. Collection bucket; 22. Square hole; 23. Limiting strip; 24. Handle; 3. Reduction mechanism; 31. Reaction chamber; 32. Aerator; 33. Baffle; 34. Support plate; 35. Stirring assembly; 351. Motor; 352. Transmission rod; 353. Stirring plate; 36. Connecting assembly; 361. Hollow tube; 362. Bearing; 363. Connecting rod; 364. Connecting groove; 365. Sealing ring; 4. Outlet pipe; 5. Valve. Detailed Implementation

[0027] The technical solution of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0028] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "top / bottom," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0029] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "sleeved / connected," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0030] Example 1:

[0031] Please see Figure 1-5 A sludge reduction device based on porous packing includes an inlet pipe 1, a reduction mechanism 3 fixedly connected to the outer surface of the inlet pipe 1, a filter assembly 2 movably connected to the inner cavity of the inlet pipe 1, an outlet pipe 4 fixedly connected inside the reduction mechanism 3, a valve 5 provided on the outer surface of the outlet pipe 4, a reaction chamber 31 including a reaction chamber 31, the inner surface of the reaction chamber 31 being fixedly connected to and communicating with the outer surface of the inlet pipe 1, the inner surface of the reaction chamber 31 being fixedly connected to and communicating with the outer surface of the outlet pipe 4, two aerators 32 fixedly connected to the bottom wall of the inner cavity of the reaction chamber 31, a baffle 33 fixedly connected to the bottom wall of the inner cavity of the reaction chamber 31, a support plate 34 fixedly connected to the upper end of the reaction chamber 31, a stirring assembly 35 fixedly connected to the upper end of the support plate 34, and a connecting assembly 36 fixedly connected to the outside of the stirring assembly 35.

[0032] This scheme allows wastewater to be transported into the device via the inlet pipe 1. During wastewater treatment, the filter assembly 2 is used to filter out large particles of impurities in the wastewater, which reduces sludge volume. The filtered wastewater then enters the reduction mechanism 3, where it continuously oscillates in the reaction tank 31 under the combined action of two aerators 32 and the stirring assembly 35. This allows for full contact with the porous packing material added to the reaction tank 31. The baffle 33 separates the stirring assembly 35 from the porous packing material, preventing damage to the packing material from impact during wastewater stirring.

[0033] Please see Figure 2-5 The filter assembly 2 includes a collection bucket 21. The rear wall of the inner cavity of the collection bucket 21 has several square holes 22. Limiting strips 23 are fixedly connected to both the left and right ends of the collection bucket 21. A handle 24 is fixedly connected to the upper end of the collection bucket 21.

[0034] The stirring assembly 35 includes a motor 351, the lower end of which is fixedly connected to the upper end of the support plate 34. The output end of the motor 351 is fixedly connected to a transmission rod 352 via a coupling. The outer surface of the transmission rod 352 is fixedly connected to the inner surface of the connecting groove 364. Two stirring plates 353 are fixedly connected to the outer surface of the transmission rod 352.

[0035] The connecting assembly 36 includes a hollow tube 361. The lower end of the hollow tube 361 is fixedly connected to the bottom wall of the inner cavity of the reaction chamber 31. Two bearings 362 are fixedly connected to the inner surface of the hollow tube 361. A connecting rod 363 is fixedly connected to the inner surface of the two bearings 362. A connecting groove 364 is opened at the upper end of the connecting rod 363. A sealing ring 365 is fixedly connected to the inner surface of the hollow tube 361.

[0036] During the initial wastewater treatment, suitable porous packing material (such as MBBR packing material) needs to be filled into the reaction tank 31. When the wastewater flows in through the inlet pipe 1, it first passes through the collection tank 21, where larger particles are intercepted. The water then flows into the reaction tank 31 through the square hole 22.

[0037] Aerator 32 is started to supply air into reaction tank 31, creating an aerobic environment inside the tank. At the same time, motor 351 is started, causing transmission rod 352 to rotate under the action of motor 351 and with the cooperation of two bearings 362. When transmission rod 352 rotates, it will drive two stirring plates 353 to rotate, stirring the sewage. Under the combined action of aeration and stirring, the sewage comes into full contact with the biofilm on the porous packing, and the microorganisms decompose the organic matter and sludge in the sewage.

[0038] The baffle 33 installed inside the reaction tank 31 plays a protective role in this process. It can block the porous packing and prevent the packing from being hit by the stirring component 35 during water flow disturbance and stirring, thus preventing the packing from being damaged or displaced, ensuring the structural integrity and stability of the packing, and thus maintaining long-term stable sludge reduction performance.

[0039] After a period of treatment, the wastewater can be discharged through the outlet pipe 4. The flow rate and volume of the water can be controlled by adjusting the valve 5. During the use of the device, the staff can remove the collection bucket 21 through the handle 24, clean the impurities trapped inside, and then reinstall it.

[0040] It should be noted that the aerator 32 and the motor 351 in this utility model are powered by a power source and controlled by a controller.

[0041] It should be noted that the specific installation method, circuit connection method and control method of the aerator 32 and motor 351 in this utility model are all conventional designs, and will not be described in detail in this utility model.

[0042] Working principle:

[0043] When sewage flows into the device through the inlet pipe 1, it first passes through the collection tank 21 and then through the square hole 22 opened in the rear wall. The square hole 22 allows water to flow through, while larger particulate impurities carried in the sewage are intercepted in the collection tank 21.

[0044] After preliminary filtration, the wastewater enters the reaction tank 31 through the inlet pipe 1. At this time, the aerator 32 and the stirring assembly 35 in the reaction tank 31 begin to function. The two aerators 32 continuously supply air into the reaction tank 31, creating a stable aerobic environment inside the tank. At the same time, the water flow disturbance generated during the aeration process causes the wastewater to flow in the reaction tank 31, promoting full contact between the wastewater and the biofilm on the surface of the porous packing material.

[0045] After the motor 351 starts, the transmission rod 352 will rotate under the action of the motor 351 and with the cooperation of the two bearings 362. When the transmission rod 352 rotates, it will drive the two stirring plates 353 to rotate, thereby generating water flow force to fully stir the sewage in various areas of the reaction tank 31. The stirring action further enhances the mixing degree between the sewage and the biofilm, ensuring that the organic matter in the sewage can be more fully absorbed and decomposed by microorganisms. Under the synergistic effect of aeration and stirring, microorganisms can utilize the organic matter in the sewage more efficiently, accelerate their own metabolism and sludge decomposition process, and achieve the goal of sludge reduction.

[0046] After a period of treatment, the wastewater can be discharged through the outlet pipe 4. The flow rate and volume of the water can be controlled by adjusting the valve 5. During the use of the device, the staff can remove the collection bucket 21 through the handle 24, clean the impurities trapped inside, and then reinstall it.

[0047] The above description is merely a preferred embodiment of this utility model; however, the protection scope of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the technical scope disclosed in this utility model, based on the technical solution and its improved concept, should be included within the protection scope of this utility model.

Claims

1. A sludge reduction device based on porous packing material, comprising an inlet pipe (1), characterized in that: A flow reduction mechanism (3) is fixedly connected to the outer surface of the inlet pipe (1), a filter assembly (2) is movably connected to the inner cavity of the inlet pipe (1), an outlet pipe (4) is fixedly connected inside the flow reduction mechanism (3), a valve (5) is provided on the outer surface of the outlet pipe (4), the flow reduction mechanism (3) includes a reaction chamber (31), two aerators (32) are fixedly connected to the bottom wall of the inner cavity of the reaction chamber (31), a baffle (33) is fixedly connected to the bottom wall of the inner cavity of the reaction chamber (31), a support plate (34) is fixedly connected to the upper end of the reaction chamber (31), a stirring assembly (35) is fixedly connected to the upper end of the support plate (34), and a connecting assembly (36) is fixedly connected to the outside of the stirring assembly (35).

2. The sludge reduction device based on porous packing material according to claim 1, characterized in that: The filter assembly (2) includes a collection bucket (21), the rear wall of the inner cavity of the collection bucket (21) is provided with several square holes (22), the left and right ends of the collection bucket (21) are fixedly connected with limit strips (23), and the upper end of the collection bucket (21) is fixedly connected with a handle (24).

3. The sludge reduction device based on porous packing material according to claim 1, characterized in that: The stirring assembly (35) includes a motor (351), the lower end of which is fixedly connected to the upper end of the support plate (34), and the output end of the motor (351) is fixedly connected to a transmission rod (352) via a coupling. Two stirring plates (353) are fixedly connected to the outer surface of the transmission rod (352).

4. The sludge reduction device based on porous packing material according to claim 3, characterized in that: The connecting assembly (36) includes a hollow tube (361), two bearings (362) are fixedly connected to the inner surface of the hollow tube (361), a connecting rod (363) is fixedly connected to the inner surface of the two bearings (362), a connecting groove (364) is provided at the upper end of the connecting rod (363), and a sealing ring (365) is fixedly connected to the inner surface of the hollow tube (361).

5. A sludge reduction device based on porous packing material according to claim 4, characterized in that: The outer surface of the transmission rod (352) is fixedly connected to the inner surface of the connecting groove (364).

6. A sludge reduction device based on porous packing material according to claim 4, characterized in that: The lower end of the hollow tube (361) is fixedly connected to the bottom wall of the inner cavity of the reaction chamber (31), the inner surface of the reaction chamber (31) is fixedly connected to and communicates with the outer surface of the water inlet pipe (1), and the inner surface of the reaction chamber (31) is fixedly connected to and communicates with the outer surface of the water outlet pipe (4).

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