Sludge reduction sewage treatment device

Abstract

The utility model belongs to sewage treatment technical field, specifically is a kind of sludge reduction's sewage treatment equipment, including base, the base top is fixed with processing cylinder, the processing cylinder bottom is fixed with bottom plate, by setting movable cylinder, second movable shaft, stirring plate, stirring rod and stirring ring, can make sludge particle in sewage even suspended, let hydrolytic bacteria, methanogen etc. and the organic matter in sludge fully contact, accelerate hydrolysis, acidification and the rate of methanogenesis reaction, reduce substrate residue, and anaerobic sludge is kept for a long time, can form dense precipitate layer in processing cylinder bottom, lead to effective reaction volume shrinkage, stirring can make sludge keep suspended state, maintain the effective volume utilization rate of processing cylinder, while anaerobic treatment needs stable temperature, if not stirring, local temperature difference in processing cylinder is easy to appear, lead to microbial activity imbalance, by stirring can maintain the uniformity of sewage anaerobic environment, stable reaction condition.

Description

Technical Field

[0001] This utility model belongs to the field of wastewater treatment technology, specifically a wastewater treatment device for sludge reduction. Background Technology

[0002] Sludge reduction refers to the process of reducing the amount (volume or mass) of sludge through physical, chemical, and biological technologies, while reducing the difficulty and cost of subsequent sludge treatment and disposal. It is a key link in the entire sludge treatment and disposal process, and its core objective is to reduce the final output of sludge from the source or during the process without affecting the wastewater treatment effect.

[0003] In existing technologies, common sludge reduction technologies include decomposing organic matter in sludge through the metabolic action of microorganisms or inhibiting microbial synthesis. Examples include anaerobic digestion (methanogens decompose organic matter, reducing sludge volume by 30%–50%), aerobic digestion (promoting endogenous respiration of microorganisms by extending aeration time), and biological predation (such as introducing protozoa, rotifers, and other microorganisms to prey on bacteria, reducing sludge volume).

[0004] Through long-term use and observation, it was found that during the process of using anaerobic digestion for wastewater treatment, the microorganisms did not have sufficient contact with the organic matter in the sludge, resulting in a decrease in the amount of methane generated in biogas.

[0005] Therefore, this utility model provides a wastewater treatment device for sludge reduction. Utility Model Content

[0006] To overcome the shortcomings of existing technologies and solve at least one of the problems mentioned in the background technology, a wastewater treatment device for sludge reduction is proposed.

[0007] The technical solution adopted by this utility model to solve its technical problem is as follows: A wastewater treatment device for sludge reduction, comprising a base, a treatment cylinder fixed to the top of the base, a bottom plate fixed to the bottom of the treatment cylinder, a discharge component slidably connected to the middle of the side wall of the bottom plate, a collection component located in the middle of the inner side wall of the base, the collection component being positioned below the discharge component, a cylinder cover slidably fitted to the top of the treatment cylinder, a stirring component located in the middle of the side wall of the cylinder cover, a circulation component located in the middle of the side wall of the stirring component, a wall scraping component located in the middle of the inner side wall of the treatment cylinder, the wall scraping component and the stirring component being correspondingly arranged, the stirring component including a motor, the motor being mounted on the top of the cylinder cover, a first movable shaft fixedly connected to the output end of the motor, a movable cylinder fixedly connected to the end of the first movable shaft, a second movable shaft fixedly connected to the bottom of the movable cylinder, and multiple stirring components fixedly connected to the middle of the side wall of the second movable shaft. The mixing plate has multiple mixing rods fixed in the middle of its side wall, and mixing rings are fixed between adjacent mixing plates. The movable cylinder, second movable shaft, mixing plate, mixing rods, and mixing rings are all located inside the treatment cylinder. This step, by setting up the movable cylinder, second movable shaft, mixing plate, mixing rods, and mixing rings, can make the sludge particles in the sewage uniformly suspended, allowing hydrolytic bacteria, methanogenic bacteria, etc., to fully contact the organic matter in the sludge, accelerating the rate of hydrolysis, acidification, and methanogenesis reactions, reducing substrate residue, and if anaerobic sludge is left to stand for a long time, a dense sediment layer will form at the bottom of the treatment cylinder, resulting in a reduction in the effective reaction volume. Mixing can keep the sludge in a suspended state, maintaining the effective volume utilization rate of the treatment cylinder. At the same time, anaerobic treatment requires a stable temperature. If there is no mixing, local temperature differences are likely to occur in the treatment cylinder, leading to uneven microbial activity. Mixing can maintain the uniformity of the anaerobic environment of the sewage and stabilize the reaction conditions.

[0008] Preferably, the wall scraping assembly includes multiple positioning grooves, which are formed on the inner wall of the treatment cylinder. A channel is formed in the middle of the inner side wall of the treatment cylinder, and the channel communicates with the positioning grooves. Multiple scrapers are slidably fitted in the middle of the inner side wall of the treatment cylinder, and the scrapers and stirring plates are correspondingly arranged. A positioning block is fixed in the middle of the side wall of the scraper, and the positioning block and positioning groove are correspondingly arranged. The positioning block and channel are correspondingly arranged. This step, by setting the positioning grooves, channels, scrapers and positioning blocks, can not only remove the sludge adhering to the inner wall of the treatment cylinder in a timely manner and prevent it from hardening and accumulating on the wall surface, but also peel off the adhering sludge and remix it into the reaction system, ensuring the contact space between the sludge and the organic matter in the sewage, maintaining the system's treatment load capacity. After scraping off the sludge on the wall, the water flow can flow more evenly through the treatment cylinder, forming a more reasonable mixing flow field with the stirring assembly, so that the sludge, substrate and microorganisms can fully contact each other, accelerating the anaerobic reaction process such as hydrolysis, acidification and methanogenesis, and improving the degradation efficiency of organic pollutants.

[0009] Preferably, the circulation assembly includes a first connecting pipe fixed to the side wall of the treatment cylinder, a second connecting pipe fixed to the top of the cylinder cover, and a fixed cylinder connected to the other end of the second connecting pipe. The fixed cylinder is fixed to the bottom of the cylinder cover, and the fixed cylinder and the movable cylinder are rotatably connected. Multiple air outlets are provided in the middle of the side wall of the stirring rod and the stirring ring. Filter paper is installed in the middle of the inner side wall of the air outlet. The second connecting pipe, the fixed cylinder, the movable cylinder, the second movable shaft, the stirring plate, the stirring rod, the stirring ring, and the air outlets are all hollow and interconnected. A filter plate is fixed in the middle of the side wall of the first connecting pipe. This step, by setting the first connecting pipe, the second connecting pipe, the fixed cylinder, the air outlets, and the filter plate, allows the generated biogas to be circulated into the sewage in the treatment cylinder. When the biogas is circulated, the rising bubbles will cause liquid disturbance, forming longitudinal and transverse convection, promoting the uniform mixing of sewage, sludge, and microorganisms, reducing the phenomenon of excessively high or low local substrate concentration, and improving substrate utilization.

[0010] Preferably, the discharge assembly includes a pair of discharge plates slidably connected to the side wall of the base plate. The discharge plates are located between the base and the processing cylinder. A handle is fixed in the middle of the side wall of the discharge plate, and a limit block is fixed at the top of the discharge plate. The collection assembly is located below the discharge plates. This step, by setting the discharge plates, handle, and limit block, can periodically discharge aged sludge, reduce the activity reduction caused by excessive sludge accumulation, reduce the wear of the bottom sediment on the processing cylinder wall and the stirring assembly, and extend the service life of the equipment.

[0011] Preferably, the collection component includes a collection box that is slidably fitted on the inner wall of the base. The collection box is connected to the treatment cylinder. This step, by setting the collection box, can collect and remove aged sludge from inside the treatment cylinder, reducing problems such as reduced effective volume of the treatment cylinder and decreased hydraulic conductivity caused by excessive accumulation of sludge at the bottom.

[0012] Preferably, an observation window is provided in the middle of the side wall of the treatment cylinder. The observation window is made of transparent material. This step allows for direct observation of the mixing uniformity of sewage and sludge in the treatment cylinder, determining whether there is stratification or stagnant water area, and adjusting the stirring intensity of the stirring components in a timely manner.

[0013] The beneficial effects of this utility model are as follows:

[0014] 1. The wastewater treatment equipment for sludge reduction described in this utility model, by setting up a movable cylinder, a second movable shaft, a stirring plate, a stirring rod, and a stirring ring, can make the sludge particles in the wastewater uniformly suspended, allowing hydrolytic bacteria, methanogenic bacteria, etc., to fully contact the organic matter in the sludge, accelerating the rate of hydrolysis, acidification, and methanogenesis reactions, reducing substrate residue, and if anaerobic sludge is left to stand for a long time, a dense sediment layer will form at the bottom of the treatment cylinder, resulting in a reduction in the effective reaction volume. Stirring can keep the sludge in a suspended state, maintaining the effective volume utilization rate of the treatment cylinder. At the same time, anaerobic treatment requires a stable temperature. If there is no stirring, local temperature differences are likely to occur in the treatment cylinder, leading to uneven microbial activity. Stirring can maintain the uniformity of the anaerobic environment of the wastewater and stabilize the reaction conditions.

[0015] 2. The wastewater treatment equipment for sludge reduction described in this utility model, by setting up positioning grooves, channels, scrapers and positioning blocks, can not only remove sludge adhering to the inner wall of the treatment cylinder in a timely manner, preventing it from hardening and accumulating on the wall surface, but also peel off the adhering sludge and remix it into the reaction system, ensuring the contact space between sludge and organic matter in wastewater, maintaining the system's treatment load capacity, and after scraping off the sludge from the wall surface, the water flow can flow more evenly through the treatment cylinder, forming a more reasonable mixing flow field with the stirring components, so that sludge, substrate and microorganisms can fully contact each other, accelerating the anaerobic reaction process such as hydrolysis, acidification, and methanogenesis, and improving the degradation efficiency of organic pollutants. Attached Figure Description

[0016] The present invention will be further described below with reference to the accompanying drawings.

[0017] Figure 1 This is a perspective view of the present invention;

[0018] Figure 2 This is a cross-sectional view of the processing cylinder in this utility model;

[0019] Figure 3 This is a schematic diagram of the cooperative structure of the scraper and the stirring plate in this utility model;

[0020] Figure 4 This is a schematic diagram of the cooperative structure of the channel and scraper in this utility model;

[0021] Figure 5 This is a schematic diagram of the cooperative structure of the collection box and the discharge plate in this utility model.

[0022] Legend:

[0023] 1. Base; 11. Processing cylinder; 12. Base plate; 13. Cylinder cover; 2. Motor; 21. First movable shaft; 22. Movable cylinder; 23. Second movable shaft; 24. Stirring plate; 25. Stirring rod; 26. Stirring ring; 3. Positioning groove; 31. Channel; 32. Scraper; 33. Positioning block; 4. First connecting pipe; 41. Second connecting pipe; 42. Fixed cylinder; 43. Air outlet; 44. Filter plate; 5. Discharge plate; 51. Handle; 52. Limiting block; 6. Collection box; 7. Observation window. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0025] Specific implementation examples are given below.

[0026] like Figures 1 to 5 As shown in the figure, a wastewater treatment device for sludge reduction according to an embodiment of the present invention includes a base 1, a treatment cylinder 11 fixed to the top of the base 1, a bottom plate 12 fixed to the bottom of the treatment cylinder 11, a discharge component slidably connected to the middle of the side wall of the bottom plate 12, a collection component provided in the middle of the inner side wall of the base 1, the collection component being located below the discharge component, a cylinder cover 13 slidably fitted to the top of the treatment cylinder 11, a stirring component provided in the middle of the side wall of the cylinder cover 13, a circulation component provided in the middle of the side wall of the stirring component, and a wall scraping component provided in the middle of the inner side wall of the treatment cylinder 11. The wall scraping component and the stirring component are correspondingly arranged. The operator opens the cylinder cover 13, pours the wastewater to be treated into the treatment cylinder 11, and then closes the cylinder cover. Cover 13, at this time the inside of the treatment cylinder 11 is in a sealed state. Then the oxygen inside the treatment cylinder 11 is extracted, making the inside of the treatment cylinder 11 an anaerobic state. The sewage will undergo anaerobic treatment inside the treatment cylinder 11. At this time, biogas will be generated from the sewage. During the anaerobic process of sewage, the stirring component is activated. The stirring component will stir the sewage inside the treatment cylinder 11 and break the stratification of the sewage. At the same time, the wall scraping component will scrape off the sludge remaining on the inner wall of the treatment cylinder 11. During the biogas production process, the generated biogas is reinjected into the sewage using the circulation component to increase biogas production. After the sewage treatment is completed, the treated sewage is collected using the discharge component and the collection component.

[0027] like Figures 1 to 3As shown, the stirring assembly includes a motor 2, which is mounted on the top of the cylinder cover 13. A first movable shaft 21 is fixedly connected to the output end of the motor 2, and a movable cylinder 22 is fixedly connected to the end of the first movable shaft 21. A second movable shaft 23 is fixed to the bottom of the movable cylinder 22. Multiple stirring plates 24 are fixedly connected to the middle of the side wall of the second movable shaft 23, and multiple stirring rods 25 are fixed to the middle of the side wall of the stirring plates 24. A stirring ring 26 is fixed between adjacent stirring plates 24. The movable cylinder 22, the second movable shaft 23, the stirring plates 24, the stirring rods 25, and the stirring ring 26 are all located inside the treatment cylinder 11. When the wastewater undergoes anaerobic treatment inside the treatment cylinder 11, the operator starts the motor 2. The motor 2 drives the first movable shaft 21 to rotate, which in turn drives the movable cylinder 22 to rotate. The rotation of the movable cylinder 22 then drives the second movable shaft 23, the stirring plates 24, the stirring rods 25, and the stirring ring 26 to rotate synchronously. At this time, the second movable shaft 23, stirring plate 24, stirring rod 25, and stirring ring 26 will stir the sewage in different areas inside the treatment cylinder 11 respectively. This step, by setting up the movable cylinder 22, the second movable shaft 23, stirring plate 24, stirring rod 25, and stirring ring 26, can make the sludge particles in the sewage uniformly suspended, allowing hydrolytic bacteria, methanogenic bacteria, etc. to fully contact the organic matter in the sludge, accelerating the rate of hydrolysis, acidification, and methanogenesis reactions, reducing substrate residue. Moreover, if anaerobic sludge is left to stand for a long time, a dense sediment layer will form at the bottom of the treatment cylinder 11, resulting in a reduction in the effective reaction volume. Stirring can keep the sludge in a suspended state, maintaining the effective volume utilization rate of the treatment cylinder 11. At the same time, anaerobic treatment requires a stable temperature. If there is no stirring, local temperature differences are likely to occur in the treatment cylinder 11, leading to uneven microbial activity. Stirring can maintain the uniformity of the anaerobic environment of the sewage and stabilize the reaction conditions.

[0028] like Figures 1 to 4As shown, the wall scraping assembly includes multiple positioning grooves 3, which are formed on the inner wall of the processing cylinder 11. A channel 31 is formed in the middle of the inner wall of the processing cylinder 11, and the channel 31 is connected to the positioning grooves 3. Multiple scrapers 32 are slidably fitted in the middle of the inner wall of the processing cylinder 11. The scrapers 32 are correspondingly arranged with the stirring plate 24. A positioning block 33 is fixed in the middle of the side wall of the scraper 32, and the positioning block 33 is correspondingly arranged with the positioning groove 3 and the channel 31. Because the positioning block 33 is correspondingly arranged with the positioning groove 3, the operator aligns the positioning block 33 on the side wall of the scraper 32 with the positioning groove 3 and inserts it until it reaches the bottom of the positioning groove 3. Because the positioning groove 3 and the channel 31 are connected, when the stirring plate 24 pushes the scraper 32 to move on the inner wall of the processing cylinder 11, the positioning block 33 will move along the channel 31. As the sludge slides along the channel 31, the scraper 32 is restricted to slide along the inner wall of the treatment cylinder 11, scraping away the sludge remaining on the inner wall of the treatment cylinder 11. This step, through the setting of positioning groove 3, channel 31, scraper 32 and positioning block 33, can not only remove the sludge adhering to the inner wall of the treatment cylinder 11 in a timely manner, preventing it from hardening and accumulating on the wall surface, but also peel off the adhering sludge and remix it into the reaction system, ensuring the contact space between the sludge and the organic matter in the sewage, maintaining the system's treatment load capacity. Moreover, after scraping off the sludge on the wall, the water flow can flow more evenly through the treatment cylinder 11, forming a more reasonable mixing flow field with the stirring components, so that the sludge, substrate and microorganisms can fully contact each other, accelerating the anaerobic reaction process such as hydrolysis, acidification, and methanogenesis, and improving the degradation efficiency of organic pollutants.

[0029] like Figures 1 to 4As shown, the circulation assembly includes a first connecting pipe 4, which is fixed to the side wall of the processing cylinder 11. A second connecting pipe 41 is fixed to the top of the cylinder cover 13, and the other end of the second connecting pipe 41 is connected to a fixed cylinder 42. The fixed cylinder 42 is fixed to the bottom of the cylinder cover 13, and the fixed cylinder 42 and the movable cylinder 22 are rotatably connected. Multiple air outlets 43 are opened in the middle of the side walls of the stirring rod 25 and the stirring ring 26. Filter paper is installed in the middle of the inner side wall of the air outlet 43. The second connecting pipe 41, the fixed cylinder 42, the movable cylinder 22, the second movable shaft 23, the stirring plate 24, the stirring rod 25, the stirring ring 26, and the air outlets 43 are all hollow and connected. A filter plate 44 is fixed in the middle of the side wall of the first connecting pipe 4. The operator connects the first connecting pipe 4 and the second connecting pipe 41 through an air pump. Because the second connecting pipe 41, the fixed cylinder 42, and the movable cylinder... 22. The second movable shaft 23, stirring plate 24, stirring rod 25, stirring ring 26, and air outlet 43 are connected. At this time, the biogas generated inside the treatment cylinder 11 will enter the second movable shaft 23 through multiple air outlets 43, and flow into the movable cylinder 22, the first movable shaft 21, and the second connecting pipe 41 under the action of the air pump. Then, it flows from the first connecting pipe 4 into the sewage inside the treatment cylinder 11. This step, by setting the first connecting pipe 4, the second connecting pipe 41, the fixed cylinder 42, the air outlet 43, and the filter plate 44, can circulate the generated biogas into the sewage inside the treatment cylinder 11. When the biogas is circulated, the rising bubbles will drive the liquid to turbulence, forming longitudinal and transverse convection, promoting the uniform mixing of sewage, sludge, and microorganisms, reducing the phenomenon of excessively high or low local substrate concentration, and improving substrate utilization.

[0030] like Figure 1 , Figure 2 , Figure 4 and Figure 5 As shown, the discharge assembly includes a pair of discharge plates 5, which are slidably connected to the side wall of the base plate 12. The discharge plates 5 are located between the base 1 and the treatment cylinder 11. A handle 51 is fixed in the middle of the side wall of the discharge plate 5, and a limit block 52 is fixed on the top of the discharge plate 5. The collection assembly is located below the discharge plates 5. After the sewage treatment is completed, the staff pulls the pair of handles 51 outward. At this time, the handles 51 will drive the discharge plates 5 to move, so that the treated sewage will flow through the base plate 12 into the collection assembly. This step, by setting the discharge plates 5, handles 51 and limit blocks 52, can regularly discharge aged sludge, reduce the activity reduction caused by excessive sludge accumulation, reduce the wear of the bottom sediment on the wall of the treatment cylinder 11 and the stirring assembly, and extend the service life of the equipment.

[0031] like Figure 1 , Figure 4 and Figure 5As shown, the collection component includes a collection box 6, which is slidably fitted on the inner wall of the base 1. The collection box 6 is connected to the treatment cylinder 11. This step, by setting the collection box 6, can collect and remove aged sludge from the inside of the treatment cylinder 11, reducing problems such as reduced effective volume of the treatment cylinder 11 and decreased hydraulic conductivity caused by excessive accumulation of sludge at the bottom.

[0032] like Figure 1 and Figure 4 As shown, an observation window 7 is provided in the middle of the side wall of the treatment cylinder 11. The observation window 7 is made of transparent material. By setting the observation window 7, the uniformity of the mixing of sewage and sludge in the treatment cylinder 11 can be directly observed, and it can be determined whether there is stratification or dead water area, and the mixing intensity of the stirring component can be adjusted in time.

[0033] Working principle: The operator opens the cover 13 and pours the wastewater to be treated into the treatment cylinder 11. Then, the cover 13 is closed, sealing the inside of the treatment cylinder 11. Oxygen is then extracted from the cylinder, creating an anaerobic environment. The wastewater undergoes anaerobic treatment inside the cylinder, producing biogas. During this anaerobic process, the stirring component is activated, agitating the wastewater inside the treatment cylinder 11 and breaking up any stratification. Simultaneously, the wall scraping component removes sludge remaining on the inner wall of the treatment cylinder 11. A circulating system is used during biogas production. The component re-injects the generated biogas into the wastewater to increase biogas production. After wastewater treatment, the discharge and collection components are used to collect the treated wastewater. While the wastewater is undergoing anaerobic treatment inside the treatment cylinder 11, the operator starts the motor 2. The motor 2 drives the first movable shaft 21 to rotate, which in turn drives the movable cylinder 22 to rotate. The rotation of the movable cylinder 22 then drives the second movable shaft 23, stirring plate 24, stirring rod 25, and stirring ring 26 to rotate synchronously. At this time, the second movable shaft 23, stirring plate 24, stirring rod 25, and stirring ring 26 will stir the treatment cylinder respectively. Wastewater from different areas inside the treatment cylinder 11 is treated by positioning blocks 33 and positioning grooves 3, which are correspondingly set. Workers insert the positioning blocks 33 on the side wall of the scraper 32 into the positioning grooves 3 until they reach the bottom of the grooves 3. Because the positioning grooves 3 and the channel 31 are connected, when the stirring plate 24 pushes the scraper 32 to move on the inner wall of the treatment cylinder 11, the positioning blocks 33 will slide along the channel 31. At this time, the scraper 32 will be restricted from sliding along the inner wall of the treatment cylinder 11, scraping away the sludge remaining on the inner wall of the treatment cylinder 11. Workers then connect the first connecting pipe 4 and the second connecting pipe 41 through an air pump. Because the second connecting pipe 41 is fixed... The cylinder 42, movable cylinder 22, second movable shaft 23, stirring plate 24, stirring rod 25, stirring ring 26, and gas outlet 43 are connected. At this time, the biogas generated inside the treatment cylinder 11 will enter the second movable shaft 23 through multiple gas outlets 43, and flow into the movable cylinder 22, the first movable shaft 21, and the second connecting pipe 41 under the action of the air pump. Then, it flows from the first connecting pipe 4 into the sewage inside the treatment cylinder 11. After the sewage treatment is completed, the staff pulls a pair of handles 51 outward. At this time, the handles 51 will drive the discharge plate 5 to move, so that the treated sewage will flow through the bottom plate 12 into the collection component.

[0034] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A wastewater treatment device for sludge reduction, comprising a base (1), characterized in that: The base (1) has a processing cylinder (11) fixed at the top and a base plate (12) fixed at the bottom. A discharge component is slidably connected to the middle of the side wall of the base plate (12). A collection component is provided in the middle of the inner side wall of the base (1). The collection component is located below the discharge component. A cylinder cover (13) is slidably fitted at the top of the processing cylinder (11). A stirring component is provided in the middle of the side wall of the cylinder cover (13). A circulation component is provided in the middle of the side wall of the stirring component. A wall scraping component is provided in the middle of the inner side wall of the processing cylinder (11). The wall scraping component and the stirring component are arranged correspondingly.

2. The wastewater treatment equipment for sludge reduction according to claim 1, characterized in that: The stirring assembly includes a motor (2), which is mounted on the top of the cylinder cover (13). The output end of the motor (2) is fixedly connected to a first movable shaft (21), and the end of the first movable shaft (21) is fixedly connected to a movable cylinder (22). The bottom of the movable cylinder (22) is fixedly connected to a second movable shaft (23). Multiple stirring plates (24) are fixedly connected to the middle of the side wall of the second movable shaft (23). Multiple stirring rods (25) are fixedly connected to the middle of the side wall of the stirring plates (24). A stirring ring (26) is fixed between adjacent stirring plates (24). The movable cylinder (22), the second movable shaft (23), the stirring plates (24), the stirring rods (25) and the stirring ring (26) are all located inside the processing cylinder (11).

3. The wastewater treatment equipment for sludge reduction according to claim 1, characterized in that: The wall scraping assembly includes multiple positioning grooves (3), which are formed on the inner wall of the processing cylinder (11). A channel (31) is formed in the middle of the inner side wall of the processing cylinder (11). The channel (31) and the positioning groove (3) are connected. Multiple scrapers (32) are slidably fitted in the middle of the inner side wall of the processing cylinder (11). The scrapers (32) and the stirring plate (24) are correspondingly arranged. A positioning block (33) is fixed in the middle of the side wall of the scraper (32). The positioning block (33) and the positioning groove (3) are correspondingly arranged. The positioning block (33) and the channel (31) are correspondingly arranged.

4. The wastewater treatment equipment for sludge reduction according to claim 2, characterized in that: The circulation assembly includes a first connecting pipe (4), which is fixed on the side wall of the processing cylinder (11). A second connecting pipe (41) is fixed on the top of the cylinder cover (13). The other end of the second connecting pipe (41) is connected to a fixed cylinder (42). The fixed cylinder (42) is fixed on the bottom of the cylinder cover (13). The fixed cylinder (42) and the movable cylinder (22) are rotatably connected. Multiple air outlets (43) are opened in the middle of the side wall of the stirring rod (25) and the stirring ring (26). Filter paper is installed in the middle of the inner side wall of the air outlet (43). The second connecting pipe (41), the fixed cylinder (42), the movable cylinder (22), the second movable shaft (23), the stirring plate (24), the stirring rod (25), the stirring ring (26), and the air outlet (43) are all hollow and connected. A filter plate (44) is fixed in the middle of the side wall of the first connecting pipe (4).

5. The wastewater treatment equipment for sludge reduction according to claim 1, characterized in that: The discharge assembly includes a pair of discharge plates (5), which are slidably connected to the side wall of the base plate (12). The discharge plates (5) are located between the base (1) and the processing cylinder (11). A handle (51) is fixed in the middle of the side wall of the discharge plate (5). A limit block (52) is fixed on the top of the discharge plate (5). The collection assembly is located below the discharge plate (5).

6. The wastewater treatment equipment for sludge reduction according to claim 5, characterized in that: The collection component includes a collection box (6), which is slidably fitted on the inner wall of the base (1), and the collection box (6) is connected to the processing cylinder (11).

7. The wastewater treatment equipment for sludge reduction according to claim 6, characterized in that: An observation window (7) is provided in the middle of the side wall of the processing cylinder (11), and the observation window (7) is made of transparent material.

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