Efficient sludge dewatering machine
By introducing a dewatering motor-driven dewatering rotating shaft and a spiral blade design into the sludge dewatering machine, the problem of frequent shutdowns required to process sludge in existing technologies has been solved, achieving continuous and efficient dewatering of sludge.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIANGSU GREEN BUILDING RESILIENT CITY RES INST CO LTD
- Filing Date
- 2025-05-28
- Publication Date
- 2026-05-12
AI Technical Summary
Existing sludge dewatering machines require frequent stops to process the sludge inside the filter screen during operation, resulting in low dewatering efficiency and failing to meet usage requirements.
A high-efficiency sludge dewatering machine was designed, comprising a dewatering cylinder, a dewatering rotating shaft, and a dewatering paddle. The dewatering rotating shaft is driven to rotate by a dewatering motor, which in turn drives the dewatering paddle to continuously squeeze and dewater the sludge. Combined with the spiral paddle design and the squeezing structure, continuous sludge dewatering is achieved.
It enables continuous dewatering of sludge, significantly improves dewatering efficiency, and meets higher usage requirements.
Smart Images

Figure CN224226863U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of dewatering equipment, specifically a high-efficiency sludge dewatering machine. Background Technology
[0002] Sludge is an inevitable byproduct of wastewater treatment plants and sewage treatment stations. If sludge that has not been properly treated and disposed of enters the environment, it will directly cause secondary pollution to water bodies and the atmosphere, and will also pose a serious threat to the ecological environment and human activities. Therefore, sludge treatment is very important, and sludge dewatering machines play a role in solid-liquid separation of sludge.
[0003] For example, the utility model patent with authorization announcement number CN216337219U discloses a sludge dewatering machine. This device has a dewatering device set at the center of the lower surface of the dewatering cylinder, and the dewatering device includes a servo motor. The upper surface of the servo motor is fixedly installed on the lower surface of the dewatering cylinder, thereby achieving full dewatering of the sludge and solid-liquid separation.
[0004] However, in actual use, the device needs to be stopped every once in a while to process the sludge in the filter screen, which reduces the sludge dewatering efficiency and cannot meet the usage requirements well. Utility Model Content
[0005] The purpose of this invention is to provide a high-efficiency sludge dewatering machine to solve the problems mentioned in the background art.
[0006] To achieve the above objectives, this utility model provides the following technical solution:
[0007] A high-efficiency sludge dewatering machine includes: a water receiving tank, in which a dewatering cylinder is installed, an inlet pipe is installed at the left end of the dewatering cylinder, and a sludge guide plate is installed on the right side of the water receiving tank corresponding to the position of the dewatering cylinder; a dewatering mechanism installed inside the dewatering cylinder for dewatering the sludge inside the dewatering cylinder; the dewatering mechanism includes a dewatering rotating shaft rotatably installed inside the dewatering cylinder, a dewatering paddle is installed on the dewatering rotating shaft, and a dewatering motor is also installed at the end of the dewatering cylinder, the output end of the dewatering motor being drivenly connected to the shaft end of the dewatering rotating shaft.
[0008] As a preferred embodiment, the dehydration rotating shaft includes a dehydration rotating shaft one on the left and a dehydration rotating shaft two on the right. The dehydration rotating shaft one is cylindrical and the dehydration rotating shaft two is frustum-shaped.
[0009] As a preferred embodiment, the dewatering paddle includes a first dewatering paddle mounted on a first dewatering shaft and a second dewatering paddle mounted on a second dewatering shaft.
[0010] As a preferred embodiment, both the first dehydration blade and the second dehydration blade are helical blades, and the helical pitch of the second dehydration blade is smaller than that of the first dehydration blade.
[0011] As a preferred embodiment, the dehydration cylinder includes an end cap and a compression cap. The end cap is equipped with multiple sets of connecting rods, and multiple sets of dehydration rings are fitted on the connecting rods. The compression cap is also provided with a compression sleeve, which is fitted onto the connecting rod. A connecting nut is threaded onto the end of the connecting rod, and a number of compression holes are distributed on the compression cap.
[0012] As a preferred embodiment, the dehydration ring is provided with a plurality of dehydration holes.
[0013] As a preferred embodiment, a fixing plate is also fitted onto the connecting rod. The fixing plate has fixing holes corresponding to the position of the connecting rod, and fixing seats are installed at both ends of the fixing plate. The fixing seats are fixedly connected to the water receiving tank.
[0014] Compared with existing technologies, the beneficial effects of this invention are as follows: Wastewater containing sludge is added to the dewatering cylinder through the inlet pipe. Then, the dewatering mechanism is activated, and the dewatering motor drives the dewatering rotating shaft to rotate, thereby driving the dewatering paddle to rotate. This, in conjunction with the dewatering cylinder, compresses the sludge, dewatering it. The dewatered sludge is discharged from the right side of the dewatering cylinder, enabling continuous dewatering and effectively improving dewatering efficiency to better meet usage requirements. This invention has a reasonable structure, allows for continuous dewatering, and effectively improves dewatering efficiency. Attached Figure Description
[0015] Figure 1 A schematic diagram of the overall three-dimensional structure of a high-efficiency sludge dewatering machine;
[0016] Figure 2 A schematic diagram of the exploded structure at the dewatering cylinder location of a high-efficiency sludge dewatering machine;
[0017] Figure 3 A three-dimensional structural diagram of the end cap position of a high-efficiency sludge dewatering machine;
[0018] Figure 4 This is a schematic diagram of the dewatering unit structure of a high-efficiency sludge dewatering machine;
[0019] Figure 5 This is a three-dimensional structural diagram of the fixed base position of a high-efficiency sludge dewatering machine.
[0020] In the diagram: 1. Water tank; 11. Water inlet pipe; 12. Mud guide plate; 2. Dewatering mechanism; 21. Dewatering motor; 22. Dewatering shaft one; 23. Dewatering shaft two; 24. Dewatering paddle one; 25. Dewatering paddle two; 3. Dewatering cylinder; 31. End cap; 32. Dewatering ring; 321. Dewatering hole; 322. Connecting sleeve; 33. Squeezing cap; 331. Squeezing sleeve; 34. Connecting rod; 35. Connecting nut; 4. Fixing plate; 41. Fixing base; 42. Fixing hole. Detailed Implementation
[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. 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.
[0022] Example: Please refer to Figures 1-5 A high-efficiency sludge dewatering machine includes: a water receiving tank 1, a dewatering cylinder 3 installed inside the water receiving tank 1, an inlet pipe 11 installed at the left end of the dewatering cylinder 3, and a sludge guide plate 12 installed on the right side of the water receiving tank 1 corresponding to the position of the dewatering cylinder 3; a dewatering mechanism 2, installed inside the dewatering cylinder 3, for dewatering the sludge inside the dewatering cylinder 3; the dewatering mechanism 2 includes a dewatering rotating shaft rotatably installed inside the dewatering cylinder 3, a dewatering paddle installed on the dewatering rotating shaft, and a dewatering motor 21 installed at the end of the dewatering cylinder 3, the output end of the dewatering motor 21 being drivenly connected to the shaft end of the dewatering rotating shaft. In this embodiment, the water receiving tank 1 is inclined, with the left side of the water receiving tank 1 lower than the right side.
[0023] The working principle of this utility model is as follows: In specific use, wastewater containing sludge is added into the dewatering cylinder 3 through the water inlet pipe 11. Then, the dewatering mechanism 2 is started, and the dewatering motor 21 drives the dewatering rotating shaft to rotate, thereby driving the dewatering paddle to rotate. Together with the dewatering cylinder 3, the sludge is squeezed and dewatered. The dewatered sludge is discharged from the right side of the dewatering cylinder, which can realize continuous dewatering operation and effectively improve dewatering efficiency, thereby better meeting the needs of use.
[0024] As a further embodiment, the dehydration rotating shaft includes a left dehydration rotating shaft 22 and a right dehydration rotating shaft 23. The dehydration rotating shaft 22 is cylindrical, and the dehydration rotating shaft 23 is frustum-shaped. The dehydration paddle includes a dehydration paddle blade 24 mounted on the dehydration rotating shaft 22 and a dehydration paddle blade 25 mounted on the dehydration rotating shaft 23. Both the dehydration paddle blade 24 and the dehydration paddle blade 25 are helical paddles, and the helical pitch of the dehydration paddle blade 25 is smaller than that of the dehydration paddle blade 24.
[0025] By setting up a dewatering shaft 22 in conjunction with a dewatering paddle 24, the sludge can be conveyed to the upper right, which can perform preliminary compression on the sludge and perform preliminary dewatering. After the sludge enters the right half of the dewatering cylinder 3, the dewatering paddle 25 with a smaller spiral spacing, in conjunction with the frustum-shaped dewatering shaft 23, can provide greater compression force on the sludge and improve the dewatering effect.
[0026] As a further embodiment, the dehydration cylinder 3 includes an end cap 31 and a compression cap 33. Multiple sets of connecting rods 34 are mounted on the end cap 31, and multiple sets of dehydration rings 32 are fitted onto the connecting rods 34. The dehydration rings 32 are fitted onto the connecting rods 34 via connecting sleeves 322. The compression cap 33 also has a compression sleeve 331, which is fitted onto the connecting rods 34. A connecting nut 35 is threaded onto the end of the connecting rod 34. The compression cap 33 has several compression holes distributed on it, and the dehydration rings 32 have several dehydration holes 321 distributed on them. A fixing plate 4 is also fitted onto the connecting rods 34. The fixing plate 4 has fixing holes 42 corresponding to the positions of the connecting rods 34, and fixing seats 41 are installed at both ends of the fixing plate 4. The fixing seats 41 are fixedly connected to the water receiving tank 1. The dehydration holes 321 facilitate the discharge of the squeezed-out water.
[0027] During installation, the dewatering ring 32 and the fixing plate 4 are fitted onto the connecting rod 34. Finally, the squeezing cap 33 is fitted onto the right end of the connecting rod 34. After the fitting is completed, the connecting nut 35 is screwed onto the end of the connecting rod 34 to complete the assembly of the dewatering cylinder 3. Then, the fixing seat 41 is fixed to the water receiving tank 1 to complete the installation. During dewatering, the dewatering shaft 23 pushes the dewatered sludge towards the squeezing cap 33, which can squeeze and dewater the sludge again. The squeezed sludge is discharged from the squeezing hole, which can realize the automatic discharge of sludge and facilitate continuous dewatering.
[0028] In this utility model, terms such as "upper", "lower", "left", "right", "front", "back", "vertical", "horizontal", "side", and "bottom" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only used to facilitate the description of the structural relationship between the various components or elements of this utility model and do not specifically refer to any component or element in this utility model. They should not be construed as limiting this utility model.
Claims
1. A high-efficiency sludge dewatering machine, characterized in that, include: A water receiving tank (1) is provided, and a dehydration cylinder (3) is installed inside the water receiving tank (1). A water inlet pipe (11) is installed at the left end of the dehydration cylinder (3). A mud guide plate (12) is installed on the right side of the water receiving tank (1) corresponding to the position of the dehydration cylinder (3). The dehydration cylinder (3) includes an end cap (31) and a compression cap (33). Multiple sets of connecting rods (34) are installed on the end cap (31). Multiple sets of dehydration rings (32) are fitted on the connecting rods (34). A compression sleeve (331) is also provided on the compression cap (33). The compression sleeve (331) is fitted on the connecting rods (34). A connecting nut (35) is threaded onto the end of the connecting rods (34). A number of compression holes are distributed on the compression cap (33). The dewatering mechanism (2) is installed inside the dewatering cylinder (3) and is used to dewater the sludge inside the dewatering cylinder (3); The dehydration mechanism (2) includes a dehydration rotating shaft rotatably installed inside the dehydration cylinder (3), a dehydration paddle is installed on the dehydration rotating shaft, and a dehydration motor (21) is also installed at the end of the dehydration cylinder (3). The output end of the dehydration motor (21) is drivenly connected to the shaft end of the dehydration rotating shaft.
2. The high-efficiency sludge dewatering machine according to claim 1, characterized in that: The dehydration rotating shaft includes a dehydration rotating shaft one (22) on the left and a dehydration rotating shaft two (23) on the right. The dehydration rotating shaft one (22) is cylindrical and the dehydration rotating shaft two (23) is frustum-shaped.
3. The high-efficiency sludge dewatering machine according to claim 2, characterized in that: The dewatering paddle includes a first dewatering paddle (24) mounted on a first dewatering shaft (22) and a second dewatering paddle (25) mounted on a second dewatering shaft (23).
4. The high-efficiency sludge dewatering machine according to claim 3, characterized in that: Both the first dehydration blade (24) and the second dehydration blade (25) are helical blades, and the helical pitch of the second dehydration blade (25) is smaller than that of the first dehydration blade (24).
5. The high-efficiency sludge dewatering machine according to claim 4, characterized in that: The dehydration ring (32) is provided with a number of dehydration holes (321).
6. The high-efficiency sludge dewatering machine according to claim 5, characterized in that: The connecting rod (34) is also fitted with a fixing plate (4), and the fixing plate (4) has a fixing hole (42) at the position corresponding to the connecting rod (34). The fixing plate (4) is also fitted with a fixing seat (41) at both ends, and the fixing seat (41) is fixedly connected to the water tank (1).