Urban inland river sludge soil improvement mixing device
By using an urban river sludge improvement and mixing device, which employs high-efficiency microfiltration and magnetic microfiltration separation systems, the problem of uneven sludge mixing has been solved, achieving efficient mixing and uniformity in the sludge improvement process and improving the overall treatment effect.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHEJIANG GUOTENG MUNICIPAL GARDEN
- Filing Date
- 2025-05-13
- Publication Date
- 2026-04-17
AI Technical Summary
Traditional sludge treatment methods are inefficient, and the sludge and magnetic powder are not mixed evenly, which affects the improvement effect.
The system employs an urban river sludge improvement and mixing device, which includes a high-efficiency microfiltration system and a magnetic microfiltration separation system. It utilizes a stirrer and a magnetic powder box within the pipeline mixer to ensure thorough mixing of the sludge and magnetic powder, thereby enhancing its magnetic properties and separability.
It improves the efficiency and effectiveness of the sludge soil improvement process, ensures uniform mixing, reduces resource waste, and enhances the efficiency of subsequent treatment steps.
Smart Images

Figure CN224127117U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of sludge improvement technology and relates to a mixing device for improving sludge in urban rivers. Background Technology
[0002] Traditional sludge treatment methods are often inefficient. When mixing sludge with magnetic powder, problems such as uneven mixing and poor dispersion of the magnetic powder easily occur, affecting the effectiveness of sludge improvement. To solve this technical problem, this utility model proposes a mixing device for improving sludge in urban rivers, aiming to improve the mixing efficiency of sludge and magnetic powder, ensure uniform mixing, and thus enhance the overall effect of sludge improvement. Utility Model Content
[0003] The purpose of this invention is to address the above-mentioned problems by providing a mixing device for improving urban river sludge.
[0004] To achieve the above objectives, the present invention adopts the following technical solution:
[0005] A soil improvement and mixing device for urban river sludge includes a high-efficiency microfiltration system and a magnetic microfiltration separation system. A connecting pipe is installed at the input end of one side of the high-efficiency microfiltration system, and a drainage pipe is provided at the other side. The output end of the magnetic microfiltration separation system is connected to the high-efficiency microfiltration system via the connecting pipe. A sludge pipe is provided at the input end of the magnetic microfiltration separation system, and a pipe mixer is provided on one side of the sludge pipe. The pipe mixer has a hollow internal structure and includes a shell, a magnetic powder box, a stirrer, a drive motor, and a gearbox. The magnetic powder box is installed on the outside of the shell, the stirrer is movably installed inside the shell, and the drive motor is fixedly installed at the bottom of the shell. The output end of the drive motor is connected to the stirrer for transmission.
[0006] In the aforementioned urban river sludge soil improvement and mixing device, the magnetic microfiltration separation system includes a transfer tank, a primary reaction tank, a secondary reaction tank, and a magnetic seed recovery machine. The sludge pipeline is connected to the transfer tank, and the transfer tank, primary reaction tank, secondary reaction tank, and magnetic seed recovery machine are sequentially interconnected.
[0007] In the aforementioned urban river sludge soil improvement and mixing device, the output port of the pipeline mixer is connected to the sludge pipeline, and the input port of the pipeline mixer is connected to the sludge inlet pipeline.
[0008] In the aforementioned urban river sludge improvement and mixing device, the agitator includes a rotating shaft and a fixed support. The two ends of the rotating shaft are movably mounted on the fixed support via bearings. Several uniformly distributed agitator blades are fixedly arranged on the rotating shaft. The outer side of the fixed support is fixed to the inner wall of the shell.
[0009] In the aforementioned urban river sludge improvement and mixing device, the magnetic powder box is located on one side above the pipeline mixer, and the bottom of the magnetic powder box is connected to the interior of the shell through a pipeline.
[0010] In the aforementioned urban river sludge improvement and mixing device, the gearbox is equipped with a drive shaft, a first transmission gear, and a second transmission gear. The first transmission gear is fixedly mounted on the drive shaft, and the first and second transmission gears mesh with each other.
[0011] In the aforementioned urban river sludge improvement and mixing device, the output shaft of the drive motor extends to one side of the gearbox, and the output shaft of the drive motor is fixedly connected to the second transmission gear. One end of the drive shaft is connected to the rotating shaft on the agitator.
[0012] In the aforementioned urban river sludge improvement and mixing device, both the primary and secondary reaction tanks are equipped with a stirring mechanism. The stirring mechanism includes a stirring rod, a stirring motor, and a mounting bracket. The stirring motor is fixedly mounted on the mounting bracket, and the stirring rod is located inside the reaction tank.
[0013] In the aforementioned urban river sludge improvement and mixing device, the transfer tank and the primary reaction tank are interconnected through a first channel, and the primary reaction tank and the secondary reaction tank are interconnected through a second channel.
[0014] In the aforementioned urban river sludge improvement and mixing device, the secondary reaction tank and the magnetic seed recovery machine are interconnected through a third channel, and the output end of the magnetic seed recovery machine is connected to a connecting pipe.
[0015] Compared with existing technologies, the advantages of this utility model are:
[0016] This invention introduces sludge into a pipe mixer, where it is thoroughly mixed with magnetic powder released from a magnetic powder box and stirred by an agitator. This process enhances the sludge's magnetic properties and separability. The mixed sludge then flows through the mixer's outlet into a sludge pipe, continuing its flow to a magnetic microfiltration separation system for further treatment. This design ensures that the sludge receives adequate pretreatment before entering the magnetic microfiltration separation system, improving the efficiency and effectiveness of the entire treatment process.
[0017] Other advantages, objectives and features of this invention will be partly apparent from the following description, and partly understood by those skilled in the art through study and practice of this invention. Attached Figure Description
[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model.
[0019] Figure 2 This is a schematic diagram of the structure of the pipeline mixer of this utility model.
[0020] Figure 3 This is a top view of the structure of this utility model.
[0021] Figure 4 This is a schematic diagram of the gearbox structure of this utility model.
[0022] Figure 5 This is a side view of the fixed bracket of this utility model.
[0023] In the diagram: 1. High-efficiency microfiltration system; 2. Magnetic microfiltration separation system; 3. Connecting pipe; 4. Sludge pipe; 5. Pipe mixer; 6. Shell; 7. Magnetic powder box; 8. Agitator; 9. Drive motor; 10. Gearbox; 11. Transfer tank; 12. Primary reaction tank; 13. Secondary reaction tank; 14. Magnetic seed recovery machine; 15. Sludge inlet pipe; 16. Rotating shaft; 17. Fixed bracket; 18. Agitator; 19. Drive shaft; 20. First transmission gear; 21. Second transmission gear; 22. Agitator rod; 23. Agitator motor; 24. Mounting bracket; 25. First channel; 26. Second channel; 27. Third channel. Detailed Implementation
[0024] The present invention will be further described below with reference to the accompanying drawings.
[0025] like Figure 1-5 As shown, an urban river sludge improvement and mixing device includes a high-efficiency microfiltration system 1 and a magnetic microfiltration separation system 2. A connecting pipe 3 is installed at the input end of one side of the high-efficiency microfiltration system 1, and a drainage pipe is provided on the other side. The output end of the magnetic microfiltration separation system 2 is connected to the high-efficiency microfiltration system 1 via the connecting pipe 3. A sludge pipe 4 is provided at the input end of the magnetic microfiltration separation system 2. A pipe mixer 5 is provided on one side of the sludge pipe 4. The pipe mixer 5 has a hollow internal structure and includes a shell 6, a magnetic powder box 7, a stirrer 8, a drive motor 9, and a gearbox 10. The magnetic powder box 7 is installed on the outside of the shell 6, the stirrer 8 is movably installed inside the shell 6, and the drive motor 9 is fixedly installed at the bottom of the shell 6. The output end of the drive motor 9 is connected to the stirrer 8 in a transmission connection.
[0026] Furthermore, the magnetic microfiltration separation system 2 includes a transfer tank 11, a primary reaction tank 12, a secondary reaction tank 13, and a magnetic seed recovery machine 14. The sludge pipeline 4 is connected to the transfer tank 11, and the transfer tank 11, the primary reaction tank 12, the secondary reaction tank 13, and the magnetic seed recovery machine 14 are sequentially interconnected.
[0027] In this embodiment, by adding coagulants and flocculants to the primary reaction tank 12 and the secondary reaction tank 13, the magnetic powder combines with non-magnetic suspended matter in the raw water under the action of the coagulants and flocculants to form magnetic flocs. These particles can be effectively separated under the action of a magnetic field. The magnetic seed recovery machine 14 is used to recover and reuse magnetic seeds, reducing resource waste.
[0028] Furthermore, the output port of the pipe mixer 5 is connected to the sludge pipe 4, and the input port of the pipe mixer 5 is connected to the sludge inlet pipe 15.
[0029] In this embodiment, the sludge inlet pipe 15 is used to introduce the sludge to be treated into the pipe mixer 5. Inside the pipe mixer 5, the sludge is thoroughly mixed with the magnetic powder released from the magnetic powder box 7 and the stirring action of the agitator 8, enhancing the magnetic properties and separability of the sludge. The mixed sludge then enters the sludge pipe 4 through the outlet of the pipe mixer 5, continuing to flow to the magnetic microfiltration separation system 2 for further processing. This design ensures that the sludge is adequately pretreated before entering the magnetic microfiltration separation system 2, improving the efficiency and effectiveness of the entire treatment process.
[0030] Furthermore, the stirrer 8 includes a rotating shaft 16 and a fixed bracket 17. The two ends of the rotating shaft 16 are movably mounted on the fixed bracket 17 through bearings. A plurality of uniformly distributed stirring paddles 18 are fixedly arranged on the rotating shaft 16. The outer side of the fixed bracket 17 is fixed to the inner wall of the housing 6.
[0031] In this embodiment, the evenly distributed agitator paddles 18 ensure that the sludge and modifier are fully mixed inside the housing 6, improving mixing efficiency and uniformity. The outer side of the fixing bracket 17 is fixed to the inner wall of the housing 6, making the overall structure of the agitator 8 stable and able to withstand large stirring forces and sludge impact forces.
[0032] Furthermore, the magnetic powder box 7 is located on one side above the pipe mixer 5, and the bottom of the magnetic powder box 7 is connected to the interior of the housing 6 through a pipe.
[0033] Furthermore, the gearbox 10 is equipped with a drive shaft 19, a first transmission gear 20, and a second transmission gear 21. The first transmission gear 20 is fixedly mounted on the drive shaft 19, and the first transmission gear 20 and the second transmission gear 21 mesh with each other.
[0034] In this embodiment, with this design, when the drive shaft 19 inside the gearbox 10 is driven to rotate, it can drive the first transmission gear 20 to rotate, and then drive the second transmission gear 21 to rotate through the meshing relationship, so that the stirring shaft 22 and the rotating shaft 16 rotate synchronously, thereby achieving full mixing of sludge and amendment.
[0035] Furthermore, the output shaft of the drive motor 9 extends to one side of the gearbox 10, and the output shaft of the drive motor 9 is fixedly connected to the second transmission gear 21. One end of the drive shaft 19 is connected to the rotating shaft 16 on the stirrer 8.
[0036] In this embodiment, such a transmission structure is not only stable and reliable, but also effectively improves mixing efficiency, ensuring uniform mixing of the modifier and sludge, and providing a good foundation for subsequent treatment steps.
[0037] Furthermore, both the primary reaction tank 12 and the secondary reaction tank 13 are equipped with stirring mechanisms. The stirring mechanism includes a stirring rod 22, a stirring motor 23, and a mounting bracket 24. The stirring motor 23 is fixedly mounted on the mounting bracket 24, and the stirring rod 22 is located inside the reaction tank.
[0038] Furthermore, the transfer tank 11 and the primary reaction tank 12 are interconnected through a first channel 25, and the primary reaction tank 12 and the secondary reaction tank 13 are interconnected through a second channel 26.
[0039] Furthermore, the secondary reaction tank 13 and the magnetic seed recovery machine 14 are interconnected through a third channel 27, and the output end of the magnetic seed recovery machine 14 is connected to the connecting pipe 3.
[0040] The working principle of this utility model is as follows:
[0041] In use, the sludge from the urban river to be treated is introduced into the pipe mixer 5 through the sludge pipe 4. Inside the pipe mixer 5, the drive motor 9 starts, driving the agitator 8 to rotate through the transmission structure in the gearbox 10. During rotation, the agitator paddle 18 on the agitator 8 thoroughly mixes the sludge with the magnetic powder released from the magnetic powder box 7, forming a magnetic sludge mixture. The mixed sludge enters the transfer tank of the magnetic microfiltration separation system through the sludge pipe, and then passes through the primary reaction tank 12 and the secondary reaction tank 13 in sequence. Under the action of coagulants and flocculants, the magnetic powder combines with the non-magnetic suspended matter in the raw water to form magnetic flocs. The wastewater containing magnetic micro-flocs is quickly adsorbed by the magnetic ring, achieving sludge-water separation. The sludge treated in the secondary reaction tank 13 enters the magnetic seed recovery machine 14 through the third channel 27. Inside the magnetic seed recovery machine 14, magnetic sludge is separated from non-magnetic sludge by magnetic force. The magnetic medium is recovered and recycled to reduce resource waste, while the non-magnetic sludge undergoes further treatment or disposal.
[0042] The specific embodiments described herein are merely illustrative examples illustrating the spirit of this utility model. Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or use similar methods to replace them, without departing from the spirit of this utility model.
[0043] Although this document frequently uses terms such as 1. high-efficiency microfiltration system; 2. magnetic microfiltration separation system; 3. connecting pipe; 4. sludge pipe; 5. pipe mixer; 6. shell; 7. magnetic powder box; 8. stirrer; 9. drive motor; 10. gearbox; 11. transfer tank; 12. primary reaction tank; 13. secondary reaction tank; 14. magnetic seed recovery machine; 15. sludge inlet pipe; 16. rotating shaft; 17. fixed bracket; 18. stirring paddle; 19. drive shaft; 20. first transmission gear; 21. second transmission gear; 22. stirring rod; 23. stirring motor; 24. mounting bracket; 25. first channel; 26. second channel; 27. third channel, etc., the possibility of using other terms is not excluded. The use of these terms is merely for the convenience of describing and explaining the essence of this utility model; interpreting them as any additional limitation would contradict the spirit of this utility model.
Claims
1. An urban river sludge soil improvement mixing device, comprising a high-efficiency microfiltration system (1) and a magnetic microfiltration separation system (2), a connecting pipeline (3) is installed on one side of the high-efficiency microfiltration system (1), and a drainage pipeline is arranged on the other side of the high-efficiency microfiltration system (1), characterized in that, The output end of the magnetic microfiltration separation system (2) is connected to the high-efficiency microfiltration system (1) through the connecting pipe (3). The input end of the magnetic microfiltration separation system (2) is provided with a sludge pipe (4). A pipe mixer (5) is provided on one side of the sludge pipe (4). The pipe mixer (5) has a hollow structure inside. The pipe mixer (5) includes a shell (6), a magnetic powder box (7), a stirrer (8), a drive motor (9), and a gearbox (10). The magnetic powder box (7) is installed on the outside of the shell (6). The stirrer (8) is movably installed inside the shell (6). The drive motor (9) is fixedly installed at the bottom of the shell (6). The output end of the drive motor (9) is connected to the stirrer (8) for transmission.
2. The urban river sludge soil improvement mixing apparatus according to claim 1, wherein The magnetic microfiltration separation system (2) includes a transfer tank (11), a primary reaction tank (12), a secondary reaction tank (13), and a magnetic seed recovery machine (14). The sludge pipeline (4) is connected to the transfer tank (11), and the transfer tank (11), the primary reaction tank (12), the secondary reaction tank (13), and the magnetic seed recovery machine (14) are sequentially connected to each other.
3. The urban river sludge soil improvement mixing apparatus according to claim 2, characterized by, The output port of the pipe mixer (5) is connected to the sludge pipe (4), and the input port of the pipe mixer (5) is connected to the sludge inlet pipe (15).
4. The urban inland river sludge improvement and mixing device according to claim 3, characterized in that, The stirrer (8) includes a rotating shaft (16) and a fixed bracket (17). The two ends of the rotating shaft (16) are movably mounted on the fixed bracket (17) through bearings. A plurality of uniformly distributed stirring paddles (18) are fixedly arranged on the rotating shaft (16). The outer side of the fixed bracket (17) is fixed to the inner wall of the housing (6).
5. The urban river sludge soil improvement mixing apparatus according to claim 4, wherein The magnetic powder box (7) is located on one side above the pipe mixer (5), and the bottom of the magnetic powder box (7) is connected to the interior of the shell (6) through a pipe.
6. The urban river sludge soil improvement mixing apparatus according to claim 5, wherein The gearbox (10) is equipped with a drive shaft (19), a first transmission gear (20) and a second transmission gear (21). The first transmission gear (20) is fixedly mounted on the drive shaft (19), and the first transmission gear (20) and the second transmission gear (21) mesh with each other.
7. The urban river sludge soil improvement mixing apparatus according to claim 6, wherein The output shaft of the drive motor (9) extends to one side of the gearbox (10), and the output shaft of the drive motor (9) is fixedly connected to the second transmission gear (21). One end of the drive shaft (19) is connected to the rotating shaft (16) on the stirrer (8).
8. The urban inland river sludge improvement and mixing device according to claim 7, characterized in that, Both the primary reaction tank (12) and the secondary reaction tank (13) are equipped with stirring mechanisms. The stirring mechanism includes a stirring rod (22), a stirring motor (23), and a mounting bracket (24). The stirring motor (23) is fixedly mounted on the mounting bracket (24), and the stirring rod (22) is located inside the reaction tank.
9. The urban river sludge soil improvement mixing apparatus according to claim 2, wherein The transfer tank (11) and the primary reaction tank (12) are connected to each other through a first channel (25), and the primary reaction tank (12) and the secondary reaction tank (13) are connected to each other through a second channel (26).
10. The urban river sludge soil improvement mixing apparatus according to claim 9, wherein The second reaction tank (13) and the magnetic seed recovery machine (14) are communicated with each other through a third channel (27), and the output end of the magnetic seed recovery machine (14) is connected with the connecting pipeline (3).