A sludge lagoon mixing device

Through the design of the transmission and lifting components, uniform mixing of sludge in the sludge tank and efficient discharge of wastewater are achieved, solving the problem of uneven sludge mixing and improving treatment efficiency.

CN224404467UActive Publication Date: 2026-06-26SHANDONG ZHIYUAN ENVIRONMENTAL ENG CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHANDONG ZHIYUAN ENVIRONMENTAL ENG CO LTD
Filing Date
2025-07-04
Publication Date
2026-06-26

AI Technical Summary

Technical Problem

Existing sludge mixing devices suffer from uneven mixing in sludge tanks.

Method used

A transmission assembly is used to rotate two shafts simultaneously, which in turn thoroughly stirs the sludge in the sludge tank via a stirring rod, and a lifting assembly is used to facilitate the discharge of wastewater.

Benefits of technology

This method achieves thorough mixing of sludge in the sludge tank and effective discharge of wastewater, reducing the labor intensity of staff and improving treatment efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to sludge stirring device technical field, concretely is a kind of sludge pool stirring device, including sludge pool, the outer side wall of sludge pool is fixedly connected with inlet pipe, the inner side wall of sludge pool is symmetrically penetrated and is rotatably connected in the rotating shaft of sludge pool inner side wall, the outer side wall of two rotating shafts is fixedly connected with multiple stirring rods, the outer side wall of sludge pool is fixedly connected with motor, the output end of motor is fixedly connected with the end of one rotating shaft, the outer side wall of sludge pool end away from motor is provided with transmission assembly, the outer side wall of sludge pool is movably connected with protection assembly, the outer side wall of sludge pool is fixedly connected with water pump, the transmission assembly of the utility model is set, so that in the process of one rotating shaft rotation drives another rotating shaft rotation, to rotate by two rotating shafts simultaneously, to carry out sufficient stirring work to the sludge in the interior of sludge pool, again by the setting lifting assembly, it is convenient to utilize water pump and discharge sludge top sewage.
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Description

Technical Field

[0001] This utility model relates to the technical field of sludge mixing devices, specifically a sludge tank mixing device. Background Technology

[0002] Sludge is a solid sediment produced during water and wastewater treatment processes. Due to the significant variations in properties among different types of sludge, classification is essential, and their treatment and disposal methods differ. Based on its source, it can be divided into: municipal sludge, also called drainage cement, mainly refers to sludge from wastewater treatment plants, which is the largest category. Additionally, sludge from waterworks also originates from municipal facilities and can be categorized into this group; pipe network sludge, from drainage collection systems; river and lake silt, from rivers and lakes; and industrial sludge, a mixture of solids, water, oil, chemical pollutants, and organic matter produced by various industrial processes. In non-specific contexts, sludge generally refers to municipal drainage sludge. Sludge balancing tank mixing equipment, as the name suggests, is equipment for mixing sludge. Mixing ensures that the raw sludge is evenly contacted with the digested sludge in the tank, accelerates heat conduction, evenly supplies nutrients to bacteria, breaks up the scum layer on the surface of the sludge in the tank, and keeps the sludge in a state of active digestion through tumbling and rolling throughout the tank.

[0003] For example, patent CN212347825U discloses a sludge stirring device for a sedimentation tank, which includes a sedimentation tank installed indoors, an inlet pipe connected to the sedimentation tank, an outlet pipe connected to the sedimentation tank, and a stirring mechanism installed in the sedimentation tank. The stirring mechanism includes a stirring support installed in the sedimentation tank, a stirring motor installed on the stirring support, a waterproof shell installed on the stirring support to completely cover the stirring motor, and stirring blades coaxially connected to the stirring motor.

[0004] Through the above-described configuration, the present invention, as described in the prior art, incorporates an automatic stirring device within the sedimentation tank to ensure thorough mixing of the concrete and water. The resulting mixture is then discharged, reducing labor intensity and improving processing efficiency. However, the existing sedimentation tank sludge stirring device has the following drawbacks during operation:

[0005] When the above-mentioned device stirs the sludge, it only uses a motor to drive the fan blades to rotate, thereby stirring the sludge in the sludge tank. However, there are many particles in the sludge tank, and using only the fan blades to stir the sludge will result in only a small part of the sludge tank being stirred, leading to uneven stirring of the sludge. Utility Model Content

[0006] The present invention aims to provide a sludge tank mixing device, which is mainly used to solve the technical problem of uneven sludge mixing in the prior art.

[0007] To solve the above-mentioned technical problems, this utility model provides the following technical solution:

[0008] A sludge tank mixing device includes a sludge tank, an inlet pipe fixedly connected to the outer wall of the sludge tank, and rotating shafts symmetrically penetrating and rotatably connected to the inner wall of the sludge tank. Multiple stirring rods are fixedly connected to the outer walls of both rotating shafts. A motor is fixedly connected to the outer wall of the sludge tank, and the output end of the motor is fixedly connected to the end of one of the rotating shafts. A transmission assembly is provided on the outer wall of the sludge tank at the end furthest from the motor. A protective assembly is movably connected to the outer wall of the sludge tank. A water pump is fixedly connected to the outer wall of the sludge tank. An L-shaped pipe is fixedly connected to one end of the water pump inside the sludge tank, and a drain pipe is fixedly connected to the other end of the water pump. A lifting assembly is slidably connected to the outer wall of the L-shaped pipe.

[0009] The working principle and beneficial effects of this utility model:

[0010] 1. Working principle: When using this device, the motor is started, which drives one of the rotating shafts to rotate. During the rotation of this shaft, the stirring rod stirs the sludge. The rotation of one shaft drives the transmission component, which in turn drives the other shaft to rotate, thus achieving the purpose of rotating both shafts simultaneously. When it is necessary to discharge water from the sludge tank, simply start the water pump. With the action of the lifting component, the wastewater at the top of the sludge is discharged.

[0011] 2. Beneficial effects:

[0012] Existing technologies employ automatic mixing devices to thoroughly mix concrete with water in sedimentation tanks before discharging the mixture. This approach reduces labor intensity and improves processing efficiency. However, existing technologies suffer from uneven sludge mixing. This solution addresses this issue by incorporating a transmission assembly that drives one shaft to rotate simultaneously, thus ensuring thorough mixing of the sludge within the sludge tank. A lifting assembly further facilitates the removal of wastewater from the top of the sludge tank using a water pump.

[0013] Preferably, the sludge tank has an installation hole on the outer wall at the rotating shaft, and a sealing gasket is fixedly connected to the inner wall of the installation hole. The rotating shaft is rotatably connected to the inner wall of the sealing gasket. The sealing gasket increases the sealing between the rotating shaft and the sludge tank, preventing liquid in the sludge tank from flowing out from there.

[0014] Preferably, the transmission assembly includes two transmission wheels symmetrically rotatably connected to the outer wall of the sludge tank. The two transmission wheels are respectively fixedly connected to the ends of two rotating shafts. A belt is fitted onto the outer wall of the two transmission wheels. In use, the device is activated by starting a motor, which drives one of the rotating shafts to rotate. During the rotation of this shaft, one of the transmission wheels rotates. During the rotation of this transmission wheel, the other transmission wheel rotates via the belt, which in turn drives the other rotating shaft to rotate, thus achieving the purpose of rotating both shafts simultaneously. During the rotation of the two shafts, the stirring rod is used to stir the sludge in the sludge tank.

[0015] Preferably, the protective component includes a protective cover, with connecting plates fixedly connected to the outer walls of both ends of the protective cover. The outer walls of the connecting plates are symmetrically penetrated and threaded with bolts. The outer walls of the sludge tank have multiple threaded holes, which are adapted to the bolts. The arrangement of the bolts and threaded holes facilitates the movable connection of the protective cover to the outer walls of the sludge tank, thereby using the protective cover to protect the drive wheel and belt, preventing injury to workers during belt rotation.

[0016] Preferably, the lifting assembly includes a connecting pipe slidably connected to the outer wall of the L-shaped pipe, and a buoyancy plate is fixedly connected to the bottom of the connecting pipe. The buoyancy plate floats on the water surface above the sludge. Then, by starting the water pump, the liquid in the sludge tank is discharged from the drain pipe. As the water pump works, the liquid at the top of the sludge gradually decreases. Under the action of the buoyancy plate, the connecting pipe slides down along the outer wall of the L-shaped pipe, thereby satisfying the discharge of sewage at different heights.

[0017] Preferably, the sludge tank has two guide rods fixedly connected to the lower side wall of the buoyancy plate, and the guide rods are slidably connected to the buoyancy plate. The guide rods increase the stability of the buoyancy plate when it is raised or lowered.

[0018] Preferably, a filter plate is fixedly connected to the inner wall of the lower end of the connecting pipe. The filter plate prevents larger particles from accumulating inside the connecting pipe and the L-shaped pipe. Attached Figure Description

[0019] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0020] Figure 2 This is a schematic diagram of the sludge tank, drive wheel, and belt of this utility model;

[0021] Figure 3 This is a structural schematic diagram of the connecting pipe, guide rod, and buoyancy plate of this utility model;

[0022] Figure 4This is a structural schematic diagram of the connecting pipe, buoyancy plate, and filter plate of this utility model.

[0023] The reference numerals in the accompanying drawings of this instruction manual include: 1. Sludge tank; 2. Inlet pipe; 3. Rotating shaft; 4. Stirring rod; 5. L-shaped pipe; 6. Water pump; 7. Drain pipe; 8. Motor; 9. Sealing gasket; 10. Mounting hole; 11. Threaded hole; 12. Drive wheel; 13. Connecting plate; 14. Protective cover; 15. Bolt; 16. Belt; 17. Connecting pipe; 18. Guide rod; 19. Buoyancy plate; 20. Filter plate. 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 of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] like Figure 1-4As shown, a sludge tank stirring device includes a sludge tank 1. An inlet pipe 2 is fixedly connected to the outer wall of the sludge tank 1. Rotary shafts 3 symmetrically penetrate and are rotatably connected to the inner wall of the sludge tank 1. Multiple stirring rods 4 are fixedly connected to the outer walls of both rotating shafts 3. A motor 8 is fixedly connected to the outer wall of the sludge tank 1. The output end of the motor 8 is fixedly connected to the end of one of the rotating shafts 3. An installation hole 10 is provided on the outer wall of the sludge tank 1 at the rotating shaft 3. A sealing gasket 9 is fixedly connected to the inner wall of the installation hole 10, and the rotating shaft 3 is rotatably connected to the inner wall of the sealing gasket 9. The sealing gasket 9 increases the sealing between the rotating shaft 3 and the sludge tank 1, preventing liquid in the sludge tank 1 from flowing out from this point. The sludge tank 1 is located away from the motor 8. A transmission assembly is provided on the outer wall of the sludge tank 1. The transmission assembly includes two transmission wheels 12 symmetrically rotatably connected to the outer wall of the sludge tank 1. The two transmission wheels 12 are respectively fixedly connected to the ends of two rotating shafts 3. A belt 16 is sleeved on the outer wall of the two transmission wheels 12. In use, the device is activated by starting the motor 8, which drives one of the rotating shafts 3 to rotate. During the rotation of this rotating shaft 3, one of the transmission wheels 12 rotates. During the rotation of this transmission wheel 12, the belt 16 drives the other transmission wheel 12 to rotate, which in turn drives the other rotating shaft 3 to rotate, thus achieving the purpose of rotating both rotating shafts 3 simultaneously. During the rotation of the two rotating shafts 3, the stirring rod 4 is used to stir the sludge in the sludge tank 1. The sludge in the sludge tank 1 is stirred to ensure thorough mixing. A protective assembly, including a protective cover 14, is movably connected to the outer wall of the sludge tank 1. Connecting plates 13 are fixedly connected to both ends of the outer wall of the protective cover 14. Bolts 15 are threaded through the outer walls of the connecting plates 13 symmetrically. Multiple threaded holes 11 are provided on the outer wall of the sludge tank 1, and these holes are adapted to the bolts 15. The bolts 15 and threaded holes 11 facilitate the movable connection of the protective cover 14 to the outer wall of the sludge tank 1. This protective cover 14 protects the drive wheel 12 and belt 16, preventing injury to workers during belt 16 rotation. The outer wall of the sludge tank 1 is fixed. A water pump 6 is connected to the sludge tank 1. One end of the water pump 6 is fixedly connected to an L-shaped pipe 5, and the other end is fixedly connected to a drain pipe 7. A lifting assembly is slidably connected to the outer wall of the L-shaped pipe 5. The lifting assembly includes a connecting pipe 17 slidably connected to the outer wall of the L-shaped pipe 5. A buoyancy plate 19 is fixedly connected to the bottom of the connecting pipe 17. Two guide rods 18 are fixedly connected to the lower side wall of the sludge tank 1 at the buoyancy plate 19, and the guide rods 18 are slidably connected to the buoyancy plate 19. Through the buoyancy plate 19, the buoyancy plate 19 floats on the water surface above the sludge. Then, by starting the water pump 6, the liquid in the sludge tank 1 is discharged from the drain pipe 7. As the water pump 6 works, the liquid at the top of the sludge gradually decreases.Under the action of the buoyancy plate 19, the connecting pipe 17 slides downward along the outer wall of the L-shaped pipe 5, thus satisfying the discharge of sewage at different heights. The guide rod 18 increases the stability of the buoyancy plate 19 during lifting and lowering, and the filter plate 20 prevents larger particles from accumulating inside the connecting pipe 17 and the L-shaped pipe 5.

[0026] As can be seen from the above, the specific embodiments of this utility model are as follows:

[0027] In operation, this device works by starting the motor 8, which drives one of the rotating shafts 3 to rotate. This rotation of the shaft 3 drives one of the transmission wheels 12, which in turn drives another transmission wheel 12 via a belt 16. This second transmission wheel 12 then drives the third rotating shaft 3, allowing both shafts 3 to rotate simultaneously. During this rotation, the stirring rod 4 agitates the sludge in the sludge tank 1, ensuring thorough mixing. The bolts 15 and threaded holes 11 facilitate the movable connection of the protective cover 14 to the outer wall of the sludge tank 1. 14. Protective measures are taken for the transmission wheel 12 and belt 16 to prevent injury to workers during the rotation of belt 16. The buoyancy plate 19 floats on the water surface above the sludge. Then, by starting the water pump 6, the liquid in the sludge tank 1 is discharged from the drain pipe 7. As the water pump 6 works, the liquid at the top of the sludge gradually decreases. Under the action of the buoyancy plate 19, the connecting pipe 17 slides down along the outer wall of the L-shaped pipe 5, thus satisfying the discharge of sewage at different heights. The guide rod 18 increases the stability of the buoyancy plate 19 when it rises and falls. The filter plate 20 prevents large particles from accumulating inside the connecting pipe 17 and the L-shaped pipe 5.

[0028] The above descriptions are merely embodiments of this utility model, and common knowledge regarding specific structures and characteristics is not elaborated upon here. It should be noted that those skilled in the art can make various modifications and improvements without departing from the structure of this utility model, and these should also be considered within the scope of protection of this utility model. These modifications will not affect the effectiveness of the implementation of this utility model or the practicality of the patent. The scope of protection claimed in this application shall be determined by the content of its claims, and the specific embodiments described in the specification can be used to interpret the content of the claims.

Claims

1. A sludge tank mixing device, comprising a sludge tank (1), characterized in that, An inlet pipe (2) is fixedly connected to the outer wall of the sludge tank (1). A rotating shaft (3) is symmetrically connected to the inner wall of the sludge tank (1) and rotated. Multiple stirring rods (4) are fixedly connected to the outer walls of the two rotating shafts (3). A motor (8) is fixedly connected to the outer wall of the sludge tank (1). The output end of the motor (8) is fixedly connected to the end of one of the rotating shafts (3). A transmission component is provided on the outer wall of the sludge tank (1) away from the motor (8). A protective component is movably connected to the outer wall of the sludge tank (1). A water pump (6) is fixedly connected to the outer wall of the sludge tank (1). An L-shaped pipe (5) is fixedly connected to one end of the water pump (6) inside the sludge tank (1). A drain pipe (7) is fixedly connected to the other end of the water pump (6). A lifting component is slidably connected to the outer wall of the L-shaped pipe (5).

2. The sludge tank mixing device according to claim 1, characterized in that: The sludge tank (1) has an installation hole (10) on the outer wall at the pivot (3). A sealing gasket (9) is fixedly connected to the inner wall of the installation hole (10), and the pivot (3) is rotatably connected to the inner wall of the sealing gasket (9).

3. The sludge tank mixing device according to claim 1, characterized in that: The transmission assembly includes a transmission wheel (12) symmetrically rotatably connected to the outer wall of the sludge tank (1). The two transmission wheels (12) are respectively fixedly connected to the ends of two rotating shafts (3). The outer walls of the two transmission wheels (12) are fitted with belts (16).

4. The sludge tank mixing device according to claim 1, characterized in that: The protective assembly includes a protective cover (14), and connecting plates (13) are fixedly connected to the outer walls of both ends of the protective cover (14). The outer walls of the connecting plates (13) are symmetrically penetrated and threaded with bolts (15). The outer walls of the sludge tank (1) are provided with multiple threaded holes (11), and the threaded holes (11) are adapted to the bolts (15).

5. The sludge tank mixing device according to claim 1, characterized in that: The lifting assembly includes a connecting pipe (17) that is slidably connected to the outer wall of the L-shaped tube (5), and a buoyancy plate (19) is fixedly connected to the bottom of the connecting pipe (17).

6. The sludge tank mixing device according to claim 5, characterized in that: The sludge tank (1) has two guide rods (18) fixedly connected to the lower side wall of the buoyancy plate (19), and the guide rods (18) are slidably connected to the buoyancy plate (19).

7. The sludge tank mixing device according to claim 5, characterized in that: The filter plate (20) is fixedly connected to the inner wall of the lower end of the connecting pipe (17).